.pc-page {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--pc-font-body);
  background: var(--pc-bg);
  color: var(--pc-text);
}

[data-theme='light'] .pc-page {
  background:
    radial-gradient(
      circle at 0% 0%,
      color-mix(in srgb, var(--pc-primary) 11%, transparent),
      transparent 36%
    ),
    radial-gradient(
      circle at 100% 0%,
      color-mix(in srgb, var(--pc-accent) 12%, transparent),
      transparent 34%
    ),
    linear-gradient(
      180deg,
      color-mix(in srgb, #ffffff 74%, var(--pc-bg)) 0%,
      var(--pc-bg) 100%
    );
  background-attachment: fixed;
}

.pc-page--home,
.pc-page--info,
.pc-page--about {
  padding-top: calc(4.75rem + env(safe-area-inset-top));
  padding-left: max(1rem, env(safe-area-inset-left));
  padding-right: max(1rem, env(safe-area-inset-right));
}

.pc-page--bridge,
.pc-page--search,
.pc-page--play,
.pc-page--study {
  padding-top: calc(4.75rem + env(safe-area-inset-top));
  padding-left: max(1rem, env(safe-area-inset-left));
  padding-right: max(1rem, env(safe-area-inset-right));
}

.pc-portal-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1500;
  padding-top: calc(0.5rem + env(safe-area-inset-top));
  padding-left: max(0.75rem, env(safe-area-inset-left));
  padding-right: max(0.75rem, env(safe-area-inset-right));
}

.pc-portal-nav__inner {
  width: min(1200px, 100%);
  margin: 0 auto;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  background: var(--pc-surface);
  background: color-mix(in srgb, var(--pc-surface) 10%, transparent);
  backdrop-filter: blur(10px);
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.75rem;
  padding: 0.45rem;
}

[data-theme='light'] .pc-portal-nav__inner {
  border-color: color-mix(in srgb, var(--pc-primary) 24%, var(--pc-border));
  box-shadow:
    0 14px 30px rgba(12, 42, 74, 0.14),
    inset 0 1px 0 color-mix(in srgb, #fff 64%, transparent);
}

.pc-logo {
  text-decoration: none;
  color: var(--pc-text);
  background: var(--pc-surface-strong);
  background: color-mix(in srgb, var(--pc-primary) 15%, var(--pc-surface));
  border-radius: 12px;
  min-height: 44px;
  padding: 0.6rem 0.85rem;
  font-family: var(--pc-font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
}

.pc-nav-group {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

[data-pc-mode-toggle] {
  display: none !important;
}

.pc-nav-link,
.pc-nav-pill,
.pc-nav-toggle {
  border-radius: 12px;
  border: 1px solid var(--pc-border);
  min-height: 44px;
  padding: 0.55rem 0.78rem;
  font-size: 0.86rem;
  font-weight: 600;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.pc-nav-action {
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  min-height: 44px;
  min-width: 44px;
  padding: 0.45rem 0.62rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  text-decoration: none;
  color: var(--pc-text);
  background: color-mix(in srgb, var(--pc-accent) 16%, var(--pc-surface));
  transition:
    border-color var(--pc-transition-fast),
    transform var(--pc-transition-fast),
    box-shadow var(--pc-transition-fast);
}

.pc-nav-action:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--pc-accent) 72%, var(--pc-border));
  box-shadow: 0 8px 16px color-mix(in srgb, var(--pc-accent) 22%, transparent);
}

.pc-nav-action.pc-is-active {
  border-color: color-mix(in srgb, var(--pc-accent) 78%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-accent) 24%, var(--pc-surface));
}

.pc-nav-action__icon {
  font-size: 0.72rem;
  line-height: 1;
}

.pc-nav-action__label {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.pc-nav-link {
  color: var(--pc-text);
  background: var(--pc-surface);
  background: color-mix(in srgb, var(--pc-surface) 95%, transparent);
}

[data-theme='light'] .pc-nav-link {
  background: linear-gradient(
    150deg,
    color-mix(in srgb, #ffffff 86%, var(--pc-surface)),
    color-mix(in srgb, var(--pc-surface) 90%, transparent)
  );
}

.pc-nav-link:hover {
  border-color: var(--pc-primary);
  border-color: color-mix(in srgb, var(--pc-primary) 60%, var(--pc-border));
  background: var(--pc-surface-strong);
  background: color-mix(in srgb, var(--pc-primary) 14%, var(--pc-surface));
}

.pc-nav-link.pc-is-active {
  background: var(--pc-surface-strong);
  border-color: var(--pc-primary);
  background: color-mix(in srgb, var(--pc-primary) 18%, var(--pc-surface));
}

[data-theme='light'] .pc-btn,
[data-theme='light'] .pc-link-chip--primary {
  box-shadow: 0 10px 22px color-mix(in srgb, var(--pc-primary) 24%, transparent);
}

.pc-nav-pill {
  color: var(--pc-text-muted);
  background: var(--pc-surface-strong);
  background: color-mix(in srgb, var(--pc-surface) 75%, transparent);
}

.pc-nav-pill--muted {
  opacity: 0.9;
}

.pc-nav-toggle {
  cursor: pointer;
  color: var(--pc-cta-text);
  background: var(--pc-cta-bg);
}

.pc-nav-toggle:hover {
  filter: brightness(1.05);
}

.pc-nav-toggle__label {
  pointer-events: none;
  white-space: nowrap;
}

/* Enhanced Focus Indicators - WCAG 2.1 AA Compliant */
.pc-nav-link:focus-visible,
.pc-nav-action:focus-visible,
.pc-portal-nav a:focus-visible,
.pc-nav-toggle:focus-visible,
.pc-btn:focus-visible,
.pc-popup-close:focus-visible,
.pc-competency-card:focus-visible,
.pc-games-quickbar__link:focus-visible,
.pc-games-quickbar__toggle:focus-visible,
.pc-link-chip:focus-visible,
.pc-filter-chip:focus-visible,
.pc-search-input:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--pc-focus);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--pc-focus) 30%, transparent);
}

/* High contrast focus for dark mode */
[data-theme='dark'] .pc-nav-link:focus-visible,
[data-theme='dark'] .pc-nav-action:focus-visible,
[data-theme='dark'] .pc-portal-nav a:focus-visible,
[data-theme='dark'] .pc-nav-toggle:focus-visible,
[data-theme='dark'] .pc-btn:focus-visible,
[data-theme='dark'] a:focus-visible,
[data-theme='dark'] button:focus-visible,
[data-theme='dark'] input:focus-visible,
[data-theme='dark'] select:focus-visible,
[data-theme='dark'] textarea:focus-visible,
[data-theme='dark'] [tabindex]:focus-visible {
  outline: 3px solid var(--pc-mint);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--pc-mint) 40%, transparent);
}

/* Skip link enhancements */
.pc-skip-link {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  z-index: 3000;
  min-height: 44px;
  border-radius: 10px;
  border: 2px solid var(--pc-focus);
  background: var(--pc-surface);
  color: var(--pc-text);
  padding: 0.75rem 1rem;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.pc-skip-link:focus-visible {
  left: max(0.5rem, env(safe-area-inset-left));
  outline: 3px solid var(--pc-focus);
  outline-offset: 2px;
}

.pc-skip-link {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  z-index: 3000;
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid var(--pc-border);
  background: var(--pc-surface);
  color: var(--pc-text);
  padding: 0.55rem 0.8rem;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
}

.pc-skip-link:focus-visible {
  left: max(0.5rem, env(safe-area-inset-left));
  outline: 3px solid var(--pc-focus);
  outline-offset: 2px;
}

.pc-home-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding-bottom: 2rem;
}

.pc-fork-wrap {
  position: relative;
}

.pc-fork-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.pc-fork-panel {
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-lg);
  padding: clamp(1.2rem, 2.2vw, 2.2rem);
  min-height: min(72dvh, 660px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.14);
}

.pc-fork-panel--pro {
  background: linear-gradient(
    155deg,
    var(--pc-surface),
    var(--pc-surface-strong)
  );
  background: linear-gradient(
    155deg,
    color-mix(in srgb, var(--pc-surface) 88%, transparent),
    color-mix(in srgb, var(--pc-primary) 8%, var(--pc-surface))
  );
}

.pc-fork-panel--play {
  background: linear-gradient(
    155deg,
    var(--pc-surface),
    var(--pc-surface-strong)
  );
  background: linear-gradient(
    155deg,
    color-mix(in srgb, var(--pc-surface) 84%, transparent),
    color-mix(in srgb, var(--pc-accent) 12%, var(--pc-surface))
  );
}

.pc-kicker {
  display: inline-flex;
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--pc-text-muted);
}

.pc-fork-title {
  margin: 0.9rem 0 0.8rem;
  font-family: var(--pc-font-display);
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  line-height: 1.1;
}

.pc-fork-copy {
  margin: 0;
  color: var(--pc-text-muted);
  max-width: 48ch;
  line-height: 1.65;
}

.pc-trust-badges {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.pc-trust-badge {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: var(--pc-surface);
  background: color-mix(in srgb, var(--pc-surface) 78%, transparent);
  padding: 0.62rem 0.7rem;
  font-size: 0.9rem;
  color: var(--pc-text);
}

.pc-panel-actions {
  margin-top: 1.1rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.pc-btn {
  border-radius: 12px;
  min-height: 44px;
  padding: 0.68rem 0.95rem;
  font-size: 0.92rem;
  font-weight: 700;
  border: 1px solid transparent;
  color: var(--pc-cta-text);
  background: var(--pc-cta-bg);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pc-btn--primary {
  color: var(--pc-cta-text);
  background: var(--pc-cta-bg);
}

.pc-btn--secondary {
  color: var(--pc-text);
  border-color: var(--pc-border);
  background: var(--pc-surface);
  background: color-mix(in srgb, var(--pc-surface) 85%, transparent);
}

.pc-btn-secondary {
  color: var(--pc-text);
  border-color: var(--pc-border);
  background: var(--pc-surface);
  background: color-mix(in srgb, var(--pc-surface) 85%, transparent);
}

.pc-btn--mint {
  color: var(--pc-cta-alt-text);
  background: var(--pc-accent);
}

.pc-btn:hover {
  transform: translateY(-1px);
}

.pc-panel-list {
  margin: 1rem 0 0;
  padding-left: 1rem;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-home-destination-wrap {
  margin-top: 1rem;
}

.pc-home-destination-layout {
  align-items: stretch;
}

.pc-home-window {
  min-height: min(66dvh, 620px);
}

.pc-home-window-title {
  margin: 0.8rem 0 0.5rem;
  font-family: var(--pc-font-display);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  line-height: 1.2;
  color: var(--pc-text);
}

.pc-home-pellets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.4rem 0 0.9rem;
}

.pc-home-pellet {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  padding: 0.18rem 0.62rem;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--pc-text);
  background: color-mix(in srgb, var(--pc-surface) 78%, transparent);
}

.pc-home-pellet--teal {
  border-color: color-mix(in srgb, #0f8f7a 50%, var(--pc-border));
  background: color-mix(in srgb, #0f8f7a 16%, var(--pc-surface));
}

.pc-home-pellet--amber {
  border-color: color-mix(in srgb, #ad7a18 55%, var(--pc-border));
  background: color-mix(in srgb, #f5b742 26%, var(--pc-surface));
}

.pc-home-pellet--mint {
  border-color: color-mix(in srgb, #1f9d8b 50%, var(--pc-border));
  background: color-mix(in srgb, #1f9d8b 17%, var(--pc-surface));
}

.pc-home-pellet--coral {
  border-color: color-mix(in srgb, #ca5e3b 55%, var(--pc-border));
  background: color-mix(in srgb, #ca5e3b 18%, var(--pc-surface));
}

.pc-home-pellet--sky {
  border-color: color-mix(in srgb, #247ac0 52%, var(--pc-border));
  background: color-mix(in srgb, #247ac0 16%, var(--pc-surface));
}

.pc-home-pellet--violet {
  border-color: color-mix(in srgb, #6a5acd 52%, var(--pc-border));
  background: color-mix(in srgb, #6a5acd 16%, var(--pc-surface));
}

.pc-home-window-links {
  margin-top: 0.25rem;
}

.pc-home-window-section + .pc-home-window-section {
  margin-top: 0.9rem;
}

.pc-home-window-subtitle {
  margin: 0 0 0.35rem;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--pc-text-muted);
}

.pc-home-window-links--dense {
  margin-top: 0;
  gap: 0.24rem;
}

.pc-home-window-links li {
  margin: 0.02rem 0;
}

.pc-home-window-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  text-decoration: none;
  font-weight: 750;
}

.pc-home-window-links--dense a {
  font-size: 0.9rem;
  line-height: 1.4;
}

.pc-home-window-badge {
  display: inline-flex;
  align-items: center;
  margin-left: 0.34rem;
  padding: 0.06rem 0.42rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--pc-border) 82%, transparent);
  background: color-mix(in srgb, var(--pc-surface-strong) 86%, transparent);
  color: var(--pc-text-muted);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  vertical-align: middle;
}

.pc-home-tier-wrap {
  margin-top: 1rem;
}

.pc-home-tier-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  align-items: start;
}

.pc-home-tier-card {
  position: relative;
  border: 1px solid color-mix(in srgb, var(--pc-primary) 32%, var(--pc-border));
  border-radius: var(--pc-radius-lg);
  padding: clamp(1rem, 2vw, 1.5rem);
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--pc-surface) 94%, transparent),
    color-mix(in srgb, var(--pc-surface-strong) 88%, transparent)
  );
  box-shadow:
    0 18px 42px rgba(2, 12, 27, 0.14),
    inset 0 1px 0 color-mix(in srgb, #fff 46%, transparent);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.9rem;
  min-height: 430px;
  isolation: isolate;
  transition:
    transform var(--pc-transition-base),
    box-shadow var(--pc-transition-base),
    border-color var(--pc-transition-base),
    min-height var(--pc-transition-base);
}

.pc-home-tier-card > * {
  position: relative;
  z-index: 2;
}

.pc-home-tier-card:hover,
.pc-home-tier-card:focus-within {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--pc-primary) 58%, var(--pc-border));
  box-shadow:
    0 24px 52px rgba(2, 12, 27, 0.2),
    inset 0 1px 0 color-mix(in srgb, #fff 60%, transparent);
  z-index: 2;
}

.pc-home-tier-card:focus-visible {
  outline: 3px solid var(--pc-focus);
  outline-offset: 2px;
}

.pc-home-tier-card--clinic {
  background:
    radial-gradient(
      circle at 14% 10%,
      color-mix(in srgb, #14b8a6 22%, transparent),
      transparent 44%
    ),
    linear-gradient(
      160deg,
      color-mix(in srgb, var(--pc-surface) 94%, transparent),
      color-mix(in srgb, #14b8a6 10%, var(--pc-surface))
    );
}

.pc-home-tier-card--student {
  background:
    radial-gradient(
      circle at 80% 6%,
      color-mix(in srgb, #f97316 20%, transparent),
      transparent 42%
    ),
    linear-gradient(
      160deg,
      color-mix(in srgb, var(--pc-surface) 94%, transparent),
      color-mix(in srgb, #f97316 10%, var(--pc-surface))
    );
}

.pc-home-tier-card--professional {
  background:
    radial-gradient(
      circle at 84% 10%,
      color-mix(in srgb, #0ea5e9 20%, transparent),
      transparent 42%
    ),
    linear-gradient(
      160deg,
      color-mix(in srgb, var(--pc-surface) 94%, transparent),
      color-mix(in srgb, #0ea5e9 10%, var(--pc-surface))
    );
}

[data-theme='light'] .pc-home-tier-card {
  border-color: color-mix(in srgb, var(--pc-primary) 34%, var(--pc-border));
  box-shadow:
    0 20px 46px rgba(18, 50, 84, 0.16),
    inset 0 1px 0 color-mix(in srgb, #fff 68%, transparent);
  animation: pc-day-card-enter 620ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

[data-theme='light'] .pc-home-tier-card:nth-child(1) {
  animation-delay: 40ms;
}

[data-theme='light'] .pc-home-tier-card:nth-child(2) {
  animation-delay: 120ms;
}

[data-theme='light'] .pc-home-tier-card:nth-child(3) {
  animation-delay: 200ms;
}

[data-theme='light'] .pc-home-tier-card::before {
  content: '';
  position: absolute;
  inset: auto -18% -30% 42%;
  height: 150px;
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--pc-accent) 25%, transparent) 0%,
    transparent 72%
  );
  filter: blur(22px);
  opacity: 0.38;
  z-index: 0;
  pointer-events: none;
  animation: pc-day-card-float 8s ease-in-out infinite;
}

[data-theme='light'] .pc-home-tier-card::after {
  content: '';
  position: absolute;
  left: 1rem;
  right: 1rem;
  top: 0;
  height: 3px;
  border-radius: 999px;
  transform: scaleX(0.38);
  transform-origin: left;
  opacity: 0.7;
  transition:
    transform var(--pc-transition-base),
    opacity var(--pc-transition-base);
  z-index: 1;
}

[data-theme='light'] .pc-home-tier-card--clinic::after {
  background: linear-gradient(90deg, #0ea5a0 0%, #2dd4bf 100%);
}

[data-theme='light'] .pc-home-tier-card--student::after {
  background: linear-gradient(90deg, #f97316 0%, #fb923c 100%);
}

[data-theme='light'] .pc-home-tier-card--professional::after {
  background: linear-gradient(90deg, #0ea5e9 0%, #38bdf8 100%);
}

[data-theme='light'] .pc-home-tier-card:hover::after,
[data-theme='light'] .pc-home-tier-card:focus-within::after {
  transform: scaleX(1);
  opacity: 1;
}

.pc-home-tier-title {
  margin: 0.7rem 0 0.4rem;
  font-family: var(--pc-font-display);
  font-size: clamp(1.35rem, 2.3vw, 1.7rem);
  line-height: 1.2;
  color: var(--pc-text);
}

.pc-home-tier-copy {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.6;
  font-size: 0.94rem;
}

.pc-home-tier-pellets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.38rem;
  margin-top: 0.75rem;
}

.pc-home-tier-pellet {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  padding: 0.14rem 0.55rem;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pc-home-tier-pellet--clinic {
  border-color: color-mix(in srgb, #0f8f7a 60%, var(--pc-border));
  background: color-mix(in srgb, #0f8f7a 16%, var(--pc-surface));
}

.pc-home-tier-pellet--student {
  border-color: color-mix(in srgb, #f97316 62%, var(--pc-border));
  background: color-mix(in srgb, #f97316 17%, var(--pc-surface));
}

.pc-home-tier-pellet--professional {
  border-color: color-mix(in srgb, #0ea5e9 58%, var(--pc-border));
  background: color-mix(in srgb, #0ea5e9 16%, var(--pc-surface));
}

.pc-home-tier-inside {
  border: 1px solid color-mix(in srgb, var(--pc-border) 80%, transparent);
  border-radius: 14px;
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--pc-surface) 92%, transparent),
    color-mix(in srgb, var(--pc-surface-strong) 88%, transparent)
  );
  padding: 0.8rem;
  max-height: 188px;
  opacity: 1;
  overflow: hidden;
  transform: translateY(0);
  pointer-events: auto;
  position: relative;
  transition:
    max-height var(--pc-transition-base),
    opacity var(--pc-transition-base),
    transform var(--pc-transition-base);
}

.pc-home-tier-inside::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 54px;
  background: linear-gradient(
    to bottom,
    transparent,
    color-mix(in srgb, var(--pc-surface) 96%, transparent)
  );
  pointer-events: none;
  opacity: 1;
  transition: opacity var(--pc-transition-base);
}

.pc-home-tier-card:hover .pc-home-tier-inside,
.pc-home-tier-card:focus .pc-home-tier-inside,
.pc-home-tier-card:focus-within .pc-home-tier-inside {
  max-height: 760px;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  overflow: auto;
}

.pc-home-tier-card:hover .pc-home-tier-inside::after,
.pc-home-tier-card:focus .pc-home-tier-inside::after,
.pc-home-tier-card:focus-within .pc-home-tier-inside::after {
  opacity: 0;
}

.pc-home-tier-inside-label {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 800;
  color: var(--pc-text-muted);
}

.pc-home-tier-links {
  margin: 0.5rem 0 0.75rem;
  display: grid;
  gap: 0.35rem;
  transform: translateY(0);
  transition: transform var(--pc-transition-base);
}

.pc-home-tier-card:hover .pc-home-tier-links,
.pc-home-tier-card:focus .pc-home-tier-links,
.pc-home-tier-card:focus-within .pc-home-tier-links {
  transform: translateY(-4px);
}

[data-theme='light'] .pc-home-tier-links li {
  opacity: 0.8;
  transform: translateY(3px);
  transition:
    opacity var(--pc-transition-fast),
    transform var(--pc-transition-fast);
}

[data-theme='light'] .pc-home-tier-card:hover .pc-home-tier-links li,
[data-theme='light'] .pc-home-tier-card:focus .pc-home-tier-links li,
[data-theme='light'] .pc-home-tier-card:focus-within .pc-home-tier-links li {
  opacity: 1;
  transform: translateY(0);
}

.pc-home-tier-links--two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.34rem 0.58rem;
}

.pc-home-tier-links a {
  color: color-mix(in srgb, var(--pc-primary) 84%, var(--pc-text));
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.pc-home-tier-links a:hover,
.pc-home-tier-links a:focus-visible {
  color: var(--pc-primary);
}

.pc-home-tier-links a::after {
  content: '→';
  font-size: 0.8rem;
  opacity: 0.55;
  transition:
    transform 0.16s ease,
    opacity 0.16s ease;
}

.pc-home-tier-links a:hover::after,
.pc-home-tier-links a:focus-visible::after {
  transform: translateX(2px);
  opacity: 0.95;
}

.pc-navle-priority-row {
  margin-top: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.pc-navle-clean-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.pc-navle-clean-card {
  border: 1px solid color-mix(in srgb, var(--pc-primary) 28%, var(--pc-border));
  border-radius: 16px;
  padding: 0.95rem;
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--pc-surface) 94%, transparent),
    color-mix(in srgb, var(--pc-primary) 8%, var(--pc-surface))
  );
  box-shadow: 0 14px 28px rgba(2, 12, 27, 0.12);
}

.pc-navle-clean-card h3 {
  margin: 0 0 0.35rem;
  color: var(--pc-primary);
}

.pc-navle-clean-card p {
  margin: 0 0 0.65rem;
  color: var(--pc-text-muted);
}

[data-theme='light'] .pc-navle-clean-card {
  border-color: color-mix(in srgb, var(--pc-primary) 30%, var(--pc-border));
  background: linear-gradient(
    160deg,
    color-mix(in srgb, #ffffff 88%, var(--pc-surface)),
    color-mix(in srgb, var(--pc-accent) 7%, var(--pc-surface))
  );
  box-shadow:
    0 16px 32px rgba(14, 49, 83, 0.14),
    inset 0 1px 0 color-mix(in srgb, #fff 70%, transparent);
}

@keyframes pc-day-card-enter {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes pc-day-card-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

.pc-home-window-links a::after {
  content: '→';
  font-size: 0.82rem;
  opacity: 0.58;
  transition:
    transform 0.16s ease,
    opacity 0.16s ease;
}

.pc-home-window-links a:hover::after,
.pc-home-window-links a:focus-visible::after {
  transform: translateX(2px);
  opacity: 0.95;
}

.pc-intersection {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(420px, calc(100% - 2.4rem));
  border: 1px solid var(--pc-border);
  border: 1px solid color-mix(in srgb, var(--pc-accent) 40%, var(--pc-border));
  background: var(--pc-surface-strong);
  background: color-mix(in srgb, var(--pc-surface-strong) 84%, transparent);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.18);
}

.pc-popup-close {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  min-height: 36px;
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  color: var(--pc-text);
  font-size: 0.76rem;
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
}

.pc-popup-close:hover {
  border-color: var(--pc-primary);
}

.pc-intersection__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  color: var(--pc-primary);
}

.pc-intersection__copy {
  margin: 0.55rem 0 0.85rem;
  font-size: 0.9rem;
  color: var(--pc-text-muted);
  line-height: 1.5;
}

.pc-intersection__meta {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin-bottom: 0.8rem;
}

.pc-chip {
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  padding: 0.26rem 0.58rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--pc-text);
}

.pc-intersection__cta {
  width: 100%;
}

.pc-home-note {
  margin: 1.15rem 0 0;
  padding: 0.8rem 0.9rem;
  border-radius: 12px;
  border: 1px dashed var(--pc-border);
  font-size: 0.86rem;
  color: var(--pc-text-muted);
  text-align: center;
}

.pc-photo-note {
  text-align: center;
  gap: 0.45rem;
}

.pc-photo-note p {
  margin-top: 0.55rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
}

.pc-photo-note span {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.64);
}

.pc-skill-card-grid {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.pc-skill-card {
  border: 1px solid var(--pc-border);
  border-radius: 16px;
  background: var(--pc-surface);
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.09);
  padding: 1rem;
}

.pc-skill-card__title {
  margin: 0 0 0.7rem;
  font-size: 1.02rem;
  color: var(--pc-primary);
}

.pc-skill-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pc-skill-tag {
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  background: var(--pc-surface-strong);
  background: color-mix(in srgb, var(--pc-surface-strong) 85%, transparent);
  color: var(--pc-text);
  padding: 0.38rem 0.64rem;
  font-size: 0.82rem;
  font-weight: 600;
}

.pc-link-strip {
  width: min(1120px, 100%);
  margin: 1rem auto 0;
  padding: 0 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
}

.pc-link-chip {
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--pc-text);
  background: var(--pc-surface);
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pc-link-chip--primary {
  color: var(--pc-cta-text);
  background: var(--pc-cta-bg);
  border-color: transparent;
  box-shadow: 0 8px 18px color-mix(in srgb, var(--pc-cta-bg) 28%, transparent);
}

.pc-link-chip--primary:hover,
.pc-link-chip--primary:focus-visible {
  color: var(--pc-cta-text);
  background: color-mix(in srgb, var(--pc-cta-bg) 86%, #ffffff 14%);
  border-color: color-mix(in srgb, var(--pc-cta-bg) 64%, var(--pc-border));
}

.pc-link-chip--muted {
  color: var(--pc-text-muted);
}

.pc-study-link-badge,
.pc-played-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
}

.pc-study-link-badge {
  text-decoration: none;
  color: var(--pc-primary);
  background: color-mix(in srgb, var(--pc-primary) 12%, var(--pc-surface));
}

.pc-played-badge {
  color: var(--pc-text);
  background: color-mix(in srgb, var(--pc-accent) 18%, var(--pc-surface));
}

.pc-page--games {
  padding-left: max(0.7rem, env(safe-area-inset-left));
  padding-right: max(0.7rem, env(safe-area-inset-right));
}

.pc-games-quickbar {
  position: fixed;
  top: calc(0.85rem + env(safe-area-inset-top));
  right: max(0.8rem, env(safe-area-inset-right));
  z-index: 1600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: flex-end;
  max-width: min(92vw, 560px);
}

.pc-games-quickbar__link,
.pc-games-quickbar__toggle {
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  padding: 0.58rem 0.8rem;
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pc-games-quickbar__link {
  color: var(--pc-text);
  background: var(--pc-surface);
  background: color-mix(in srgb, var(--pc-surface) 86%, transparent);
}

.pc-games-quickbar__toggle {
  cursor: pointer;
  color: var(--pc-cta-text);
  background: var(--pc-cta-bg);
}

.pc-bridge-shell {
  width: min(1100px, 100%);
  margin: 0 auto;
  padding-bottom: 2.5rem;
}

.pc-bridge-shell--directory,
.pc-bridge-shell--case {
  width: min(980px, 100%);
}

.pc-bridge-hero {
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-lg);
  background: var(--pc-surface);
  padding: clamp(1.2rem, 2.2vw, 2rem);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.1);
}

.pc-bridge-section {
  margin-top: 1rem;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  background: var(--pc-surface);
  padding: 1rem;
}

@supports (content-visibility: auto) {
  .pc-bridge-section {
    content-visibility: auto;
    contain-intrinsic-size: 1px 560px;
  }
}

.pc-bridge-title {
  margin: 0 0 0.8rem;
  color: var(--pc-primary);
  font-size: 1.2rem;
}

.pc-bridge-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.pc-bridge-card {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: var(--pc-surface-strong);
  padding: 0.9rem;
}

.pc-bridge-card h3 {
  margin: 0 0 0.45rem;
}

.pc-bridge-card p {
  margin: 0 0 0.75rem;
  color: var(--pc-text-muted);
  line-height: 1.55;
}

.pc-topic-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.55rem;
}

.pc-topic-chip {
  min-height: 44px;
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  color: var(--pc-text);
  background: var(--pc-surface-strong);
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 0.35rem 0.65rem;
}

.pc-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.pc-stat-card {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: var(--pc-surface-strong);
  padding: 0.9rem;
}

.pc-stat-number {
  margin: 0;
  color: var(--pc-primary);
  font-size: 1.35rem;
  font-weight: 800;
}

.pc-stat-label {
  margin: 0.45rem 0 0;
  color: var(--pc-text-muted);
  font-size: 0.9rem;
}

.pc-case-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.9rem;
}

.pc-case-item {
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  background: var(--pc-surface);
  padding: 1rem;
}

.pc-case-item h2 {
  margin: 0 0 0.45rem;
}

.pc-case-item p {
  margin: 0 0 0.8rem;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-case-article {
  margin-top: 1rem;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  background: var(--pc-surface);
  padding: 1rem;
}

.pc-case-article h1,
.pc-case-article h2 {
  margin: 0.35rem 0 0.8rem;
  line-height: 1.25;
}

.pc-case-article p {
  margin: 0 0 0.95rem;
  color: var(--pc-text-muted);
  line-height: 1.7;
}

.pc-signalment,
.pc-diagnose-box {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: var(--pc-surface-strong);
  padding: 0.9rem;
  margin-bottom: 1rem;
}

.pc-signalment ul,
.pc-findings {
  margin: 0;
  padding-left: 1.2rem;
  line-height: 1.6;
}

.pc-diagnose-form {
  display: grid;
  gap: 0.6rem;
}

.pc-diagnose-form label {
  border: 1px solid var(--pc-border);
  border-radius: 10px;
  background: var(--pc-surface);
  padding: 0.65rem;
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  color: var(--pc-text);
}

.pc-diagnose-form input[type='radio'] {
  margin-top: 0.2rem;
}

.pc-diagnose-actions {
  margin-top: 0.3rem;
}

.pc-answer {
  margin-top: 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--pc-border);
  background: var(--pc-surface);
  padding: 0.75rem;
  color: var(--pc-text);
}

.pc-answer p {
  margin: 0;
  color: var(--pc-text);
}

.pc-print-url {
  display: none;
}

.pc-clinical-context {
  margin-bottom: 1rem;
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: var(--pc-surface);
  padding: 1rem;
}

.pc-clinical-context h3 {
  margin: 0 0 0.4rem;
}

.pc-clinical-context p {
  margin: 0 0 0.85rem;
  color: var(--pc-text-muted);
}

.pc-section {
  width: min(1120px, 100%);
  margin: 0 auto 1.4rem;
  padding: 1rem 2rem;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  background: var(--pc-surface);
}

.pc-section h2 {
  margin: 0 0 0.45rem;
  color: var(--pc-primary);
}

.pc-section p {
  margin: 0 0 0.8rem;
  color: var(--pc-text-muted);
}

.pc-search-shell {
  width: min(980px, 100%);
  margin: 0 auto;
  padding-bottom: 2rem;
}

.pc-search-panel {
  margin-top: 1rem;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  background: var(--pc-surface);
  padding: 1rem;
}

.pc-search-form {
  display: grid;
  gap: 0.5rem;
}

.pc-search-label {
  font-weight: 700;
  color: var(--pc-text);
}

.pc-search-input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  padding: 0.65rem 0.8rem;
  background: var(--pc-surface-strong);
  color: var(--pc-text);
  font-size: 1rem;
}

.pc-search-summary {
  margin: 0.8rem 0;
  color: var(--pc-text-muted);
}

.pc-search-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.8rem;
}

.pc-filter-chip {
  min-height: 36px;
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  padding: 0.35rem 0.7rem;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--pc-text);
  background: color-mix(in srgb, var(--pc-surface-strong) 90%, transparent);
  cursor: pointer;
}

.pc-filter-chip.pc-is-active {
  border-color: var(--pc-primary);
  background: color-mix(in srgb, var(--pc-primary) 16%, var(--pc-surface));
}

.pc-search-results {
  display: grid;
  gap: 0.8rem;
}

.pc-search-empty {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: var(--pc-surface-strong);
  padding: 0.85rem;
}

.pc-search-empty h3 {
  margin: 0 0 0.4rem;
  color: var(--pc-primary);
}

.pc-search-empty p {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-search-popular-links {
  margin-top: 0.8rem;
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.pc-search-group {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: var(--pc-surface-strong);
  padding: 0.85rem;
}

.pc-search-group h3 {
  margin: 0 0 0.65rem;
  color: var(--pc-primary);
}

.pc-result-item + .pc-result-item {
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px dashed var(--pc-border);
}

.pc-result-item h4 {
  margin: 0 0 0.35rem;
}

.pc-result-item a {
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  color: var(--pc-primary);
  text-decoration: none;
}

.pc-result-item p {
  margin: 0 0 0.35rem;
  color: var(--pc-text-muted);
}

.pc-result-keywords {
  font-size: 0.82rem;
}

.pc-search-hit {
  border-radius: 6px;
  padding: 0.05rem 0.2rem;
  background: color-mix(in srgb, var(--pc-accent) 35%, #fff);
  color: inherit;
}

.pc-result-item--active {
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-primary) 12%, var(--pc-surface));
  padding: 0.45rem;
}

.pc-study-shell {
  width: min(1100px, 100%);
  margin: 0 auto;
  padding-bottom: 2rem;
}

.pc-streak-summary {
  margin-bottom: 1rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pc-streak-flame {
  font-size: 1.15rem;
  line-height: 1;
}

.pc-study-layout {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 1rem;
}

.pc-study-panel {
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  background: var(--pc-surface);
  padding: 1rem;
}

.pc-study-panel h2 {
  margin: 0 0 0.7rem;
  color: var(--pc-primary);
}

.pc-plan-presets {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
  margin-top: 0.9rem;
}

.pc-plan-chip {
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid var(--pc-border);
  background: color-mix(in srgb, var(--pc-surface-strong) 90%, transparent);
  color: var(--pc-text);
  font-weight: 700;
  cursor: pointer;
}

.pc-plan-chip.pc-is-active {
  border-color: var(--pc-primary);
  background: color-mix(in srgb, var(--pc-primary) 16%, var(--pc-surface));
}

.pc-study-topic-grid {
  display: grid;
  gap: 0.8rem;
}

.pc-study-topic {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
  padding: 0.85rem;
}

.pc-study-topic > label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.pc-study-topic > label input[type='checkbox'] {
  margin: 0;
}

.pc-study-topic h3 {
  margin: 0 0 0.35rem;
}

.pc-study-topic-meta {
  margin: 0 0 0.75rem;
  color: var(--pc-text-muted);
  font-size: 0.84rem;
}

.pc-study-items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.pc-study-item {
  border: 1px solid var(--pc-border);
  border-radius: 10px;
  background: var(--pc-surface);
  padding: 0.55rem 0.6rem;
}

.pc-study-item label {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.55rem;
  align-items: flex-start;
}

.pc-study-item input[type='checkbox'] {
  margin-top: 0.18rem;
}

.pc-study-item-title {
  display: block;
  color: var(--pc-text);
  font-weight: 700;
}

.pc-study-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.28rem;
  color: var(--pc-text-muted);
  font-size: 0.82rem;
}

.pc-study-item-meta a {
  color: var(--pc-primary);
  font-weight: 600;
}

.pc-study-progress {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-surface-strong) 90%, transparent);
  padding: 0.85rem;
}

.pc-study-progress-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.55rem;
}

.pc-study-progress-top p {
  margin: 0;
  color: var(--pc-text-muted);
}

.pc-study-progress-bar {
  margin-top: 0.6rem;
  width: 100%;
  height: 12px;
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  overflow: hidden;
  background: var(--pc-surface);
}

.pc-study-progress-fill {
  width: 0;
  height: 100%;
  background: var(--pc-primary);
  transition: width 0.2s ease;
}

.pc-study-streak {
  margin-top: 0.65rem;
  color: var(--pc-text);
  font-weight: 700;
}

.pc-study-today {
  margin-top: 0.9rem;
}

.pc-study-today h3 {
  margin: 0 0 0.55rem;
}

.pc-study-today-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-study-today-list a {
  color: var(--pc-primary);
  font-weight: 600;
}

.pc-study-break {
  margin-top: 0.85rem;
  border: 1px solid var(--pc-border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-accent) 18%, var(--pc-surface));
  padding: 0.75rem;
}

.pc-study-break p {
  margin: 0 0 0.5rem;
}

.pc-study-break[hidden] {
  display: none;
}

.pc-study-actions {
  margin-top: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.pc-info-shell,
.pc-about-shell {
  width: min(1100px, 100%);
  margin: 0 auto;
  padding-bottom: 2rem;
}

.pc-hero-profile {
  display: grid;
  grid-template-columns: minmax(220px, 300px) 1fr;
  gap: 1rem;
  align-items: center;
}

.pc-hero-profile--no-photo {
  grid-template-columns: 1fr;
}

.pc-photo-frame {
  border: 1px solid var(--pc-border);
  border-radius: 18px;
  background: color-mix(in srgb, var(--pc-surface-strong) 90%, transparent);
  min-height: 220px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.pc-photo-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.pc-photo-frame.pc-photo-placeholder::before {
  content: 'Photo unavailable';
  color: var(--pc-text-muted);
  font-weight: 600;
  font-size: 0.94rem;
}

.pc-hero-content h1 {
  margin: 0 0 0.6rem;
  font-family: var(--pc-font-display);
  line-height: 1.15;
}

.pc-tagline {
  margin: 0 0 0.7rem;
  color: var(--pc-primary);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.pc-hero-content p {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.65;
}

.pc-hero-actions {
  margin-top: 0.9rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.pc-experience-grid {
  margin-top: 0.9rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.pc-experience-card {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface-strong) 90%, transparent);
  padding: 0.9rem;
}

.pc-experience-card h3 {
  margin: 0 0 0.4rem;
  color: var(--pc-primary);
  font-size: 1rem;
}

.pc-experience-card p {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-competencies {
  margin-bottom: 1.2rem;
}

.pc-competency-grid {
  margin-top: 0.8rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.pc-competency-card {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface-strong) 90%, transparent);
  padding: 0.9rem;
}

.pc-competency-card h3 {
  margin: 0 0 0.55rem;
  color: var(--pc-primary);
}

.pc-competency-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--pc-text);
  line-height: 1.6;
}

.pc-footer {
  border: 1px solid var(--pc-border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  padding: 1rem;
  margin: 0 auto 2rem;
}

.pc-footer-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.55rem;
}

.pc-footer-links a {
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid var(--pc-border);
  padding: 0.5rem 0.75rem;
  color: var(--pc-text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  font-weight: 600;
}

.pc-footer-note {
  margin: 0;
  color: var(--pc-text-muted);
  font-size: 0.92rem;
}

.pc-footer-note a {
  color: var(--pc-primary);
  font-weight: 700;
  text-decoration: none;
}

.pc-footer-note + .pc-footer-note {
  margin-top: 0.45rem;
}

/* Compact legal/credential footer text per product preference */
.pc-footer--global .pc-footer-links,
.pc-page--info .pc-footer-links {
  gap: 0.4rem;
  margin-bottom: 0.35rem;
}

.pc-footer--global .pc-footer-links a,
.pc-page--info .pc-footer-links a {
  min-height: 28px;
  border-radius: 8px;
  padding: 0.22rem 0.46rem;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.pc-footer--global .pc-footer-note,
.pc-page--info .pc-footer-note {
  font-size: 0.66rem;
  line-height: 1.42;
}

.pc-footer--global .pc-footer-note + .pc-footer-note,
.pc-page--info .pc-footer-note + .pc-footer-note {
  margin-top: 0.22rem;
}

.pc-breadcrumbs {
  margin-bottom: 0.9rem;
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
  padding: 0.55rem 0.75rem;
}

.pc-breadcrumbs__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  align-items: center;
  font-size: 0.84rem;
}

.pc-breadcrumbs__item {
  color: var(--pc-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.pc-breadcrumbs__item + .pc-breadcrumbs__item:before {
  content: '/';
  color: var(--pc-text-muted);
  opacity: 0.75;
}

.pc-breadcrumbs__item a {
  color: var(--pc-primary);
  text-decoration: none;
  font-weight: 700;
}

.pc-breadcrumbs__item[aria-current='page'] {
  color: var(--pc-text);
  font-weight: 700;
}

.pc-play-shell {
  width: min(1140px, 100%);
  margin: 0 auto;
  padding-bottom: 2rem;
}

.pc-arcade-stats {
  margin-top: 0.2rem;
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.pc-arcade-stat {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
  padding: 0.75rem;
}

.pc-arcade-label {
  display: block;
  color: var(--pc-text-muted);
  font-size: 0.8rem;
  margin-bottom: 0.25rem;
}

.pc-arcade-stat strong {
  font-size: 1.1rem;
}

.pc-arcade-stat--xp small {
  color: var(--pc-text-muted);
  font-weight: 600;
}

.pc-xp-track {
  margin: 0.35rem 0;
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
  overflow: hidden;
}

.pc-xp-fill {
  height: 100%;
  width: 0;
  background: var(--pc-primary);
}

.pc-featured-game {
  margin-top: 1rem;
}

.pc-game-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.pc-game-card {
  border: 1px solid var(--pc-border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
  display: grid;
  overflow: hidden;
}

.pc-game-card--featured {
  grid-template-columns: minmax(180px, 34%) 1fr;
}

.pc-game-thumb {
  position: relative;
  isolation: isolate;
  min-height: 130px;
  border-bottom: 1px solid var(--pc-border);
  background-color: color-mix(
    in srgb,
    var(--pc-primary) 35%,
    var(--pc-surface-strong)
  );
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  color: #f5fbff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.65);
  padding: 1rem;
  box-shadow: inset 0 0 0 1000px rgba(0, 0, 0, 0.06);
}

.pc-game-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(2, 19, 27, 0.12) 0%,
    rgba(2, 19, 27, 0.76) 100%
  );
  z-index: 0;
}

.pc-game-thumb__chip {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.75rem 0.4rem 0.4rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  background: rgba(2, 16, 24, 0.72);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.pc-game-thumb__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  font-size: 0.95rem;
  line-height: 1;
}

.pc-game-thumb__label {
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pc-game-card--featured .pc-game-thumb {
  min-height: 100%;
  border-bottom: none;
  border-right: 1px solid var(--pc-border);
}

.pc-game-thumb--studycore {
  background-image: url('/assets/screenshots/vetstrands.svg');
}

.pc-game-thumb--sudoku {
  background-image: url('/assets/screenshots/sudoku.svg');
}

.pc-game-thumb--memory {
  background-image: url('/assets/screenshots/memory-match.svg');
}

.pc-game-thumb--2048 {
  background-image: url('/assets/screenshots/2048.svg');
}

.pc-game-thumb--ttt {
  background-image: url('/assets/screenshots/tic-tac-toe.svg');
}

.pc-game-thumb--iq {
  background-image: url('/assets/screenshots/iq-challenge.svg');
}

[data-theme='dark'] .pc-game-thumb {
  box-shadow: inset 0 0 0 1000px rgba(0, 0, 0, 0.16);
}

[data-theme='dark'] .pc-game-thumb::before {
  background: linear-gradient(
    180deg,
    rgba(2, 19, 27, 0.2) 0%,
    rgba(2, 19, 27, 0.82) 100%
  );
}

[data-theme='dark'] .pc-game-thumb__chip {
  background: rgba(2, 16, 24, 0.78);
}

.pc-game-body {
  padding: 0.9rem;
}

.pc-game-body h1,
.pc-game-body h2 {
  margin: 0.4rem 0 0.45rem;
}

.pc-game-body p {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-play-subtitle {
  margin: 0;
  font-weight: 600;
}

.pc-play-subtitle a {
  color: var(--pc-primary);
}

.pc-difficulty {
  margin-top: 0.6rem !important;
  color: var(--pc-text);
  font-weight: 700;
}

.pc-badge {
  display: inline-flex;
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  min-height: 30px;
  align-items: center;
  padding: 0.2rem 0.56rem;
  color: var(--pc-text);
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
  font-size: 0.74rem;
  font-weight: 700;
}

.pc-case-card {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
  padding: 0.9rem;
}

.pc-case-card h3 {
  margin: 0 0 0.45rem;
}

.pc-case-card p {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.55;
}

.pc-case-backlink {
  margin: 0 0 0.9rem;
  color: var(--pc-text-muted);
  font-size: 0.94rem;
}

.pc-case-backlink a {
  color: var(--pc-primary);
}

.pc-disclaimer {
  margin: 1rem 0 0;
  color: var(--pc-text-muted);
  font-size: 0.84rem;
}

.pc-disclaimer a {
  color: var(--pc-primary);
}

.pc-last-reviewed {
  margin: 0.75rem 0 0;
  color: var(--pc-text-muted);
  font-size: 0.83rem;
  font-style: italic;
}

.pc-link-list {
  margin: 0.8rem 0 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.45rem;
  line-height: 1.6;
}

.pc-link-list a {
  color: var(--pc-primary);
  font-weight: 700;
}

.pc-note-box {
  margin-top: 0.9rem;
  border: 1px dashed var(--pc-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-surface-strong) 85%, transparent);
  padding: 0.75rem 0.85rem;
}

.pc-note-box p {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-cta-banner {
  margin-top: 0.95rem;
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  padding: 0.85rem;
  background: color-mix(in srgb, var(--pc-primary) 10%, var(--pc-surface));
}

.pc-cta-banner__text {
  margin: 0;
  color: var(--pc-text);
  line-height: 1.6;
  font-weight: 600;
}

.pc-tag-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.pc-tag {
  min-height: 30px;
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  background: color-mix(in srgb, var(--pc-surface) 88%, transparent);
  color: var(--pc-text);
  font-size: 0.76rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  display: inline-flex;
  align-items: center;
}

.pc-faq-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.pc-faq-item {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-surface-strong) 84%, transparent);
  padding: 0.75rem;
}

.pc-faq-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.pc-faq-item p {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-pricing-table-note {
  margin: 0.55rem 0 0;
  color: var(--pc-text-muted);
  font-size: 0.84rem;
}

.pc-completed-badge {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  padding: 0.3rem 0.6rem;
  color: var(--pc-text);
  font-weight: 700;
  background: color-mix(in srgb, var(--pc-accent) 22%, var(--pc-surface));
}

.pc-page--gameframe {
  --pc-game-nav-height: calc(60px + env(safe-area-inset-top));
  padding: 0;
  height: 100dvh;
  overflow: hidden;
  background: var(--pc-bg);
  color: var(--pc-text);
}

.pc-game-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1600;
  min-height: 60px;
  border-bottom: 1px solid var(--pc-border);
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
  backdrop-filter: blur(10px);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.6rem;
  padding: calc(0.45rem + env(safe-area-inset-top))
    max(0.75rem, env(safe-area-inset-right)) 0.45rem
    max(0.75rem, env(safe-area-inset-left));
}

.pc-game-nav__center {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  justify-content: center;
  min-width: 0;
}

.pc-game-nav__right {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.pc-game-nav__back {
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid var(--pc-border);
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  color: var(--pc-text);
  padding: 0.55rem 0.8rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  font-weight: 700;
}

.pc-game-title {
  margin: 0;
  font-weight: 700;
  white-space: nowrap;
}

.pc-game-stage {
  margin-top: var(--pc-game-nav-height);
  height: calc(100dvh - var(--pc-game-nav-height));
  width: 100%;
  background: color-mix(in srgb, var(--pc-bg) 90%, #000 10%);
}

.pc-game-iframe {
  width: 100%;
  height: calc(100dvh - var(--pc-game-nav-height));
  border: 0;
  display: block;
  touch-action: auto;
  background: var(--pc-surface-strong);
}

.pc-auth-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.35rem;
  font-size: 0.7rem;
  line-height: 1;
}

.pc-auth-indicator--on {
  color: var(--pc-success, #169b62);
}

.pc-auth-indicator--off {
  color: var(--pc-text-muted);
}

.pc-account-shell,
.pc-leaderboard-shell,
.pc-privacy-shell {
  width: min(1080px, 100%);
  margin: 0 auto;
  padding-bottom: 2rem;
}

.pc-page--account .pc-account-shell {
  position: relative;
  isolation: isolate;
}

.pc-page--account .pc-account-shell::before {
  content: '';
  position: absolute;
  top: 0.6rem;
  right: -2rem;
  width: clamp(180px, 22vw, 340px);
  aspect-ratio: 1 / 1;
  border-radius: 999px;
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--pc-accent) 22%, transparent),
    transparent 70%
  );
  filter: blur(8px);
  opacity: 0.8;
  pointer-events: none;
  z-index: -1;
}

.pc-account-hero {
  margin-bottom: 1rem;
}

.pc-account-hero__surface {
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-lg);
  padding: clamp(1.05rem, 2.3vw, 1.8rem);
  background:
    linear-gradient(
      125deg,
      color-mix(in srgb, var(--pc-surface) 90%, transparent),
      color-mix(in srgb, var(--pc-primary) 8%, var(--pc-surface))
    ),
    radial-gradient(
      circle at 85% 18%,
      color-mix(in srgb, var(--pc-accent) 20%, transparent),
      transparent 46%
    );
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
}

.pc-account-hero__surface::after {
  content: '';
  position: absolute;
  width: 180px;
  height: 180px;
  right: -90px;
  bottom: -90px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--pc-border) 70%, transparent);
  pointer-events: none;
}

.pc-account-hero__surface .pc-fork-title {
  margin-top: 0.75rem;
  margin-bottom: 0.7rem;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
}

.pc-account-hero__chips {
  margin-top: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.pc-account-hero__chips .pc-chip {
  border-color: color-mix(in srgb, var(--pc-border) 75%, transparent);
  background: color-mix(in srgb, var(--pc-surface) 82%, transparent);
}

.pc-account-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.pc-account-card {
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-lg);
  background: color-mix(in srgb, var(--pc-surface) 94%, transparent);
  padding: clamp(1.05rem, 1.8vw, 1.5rem);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.06);
}

.pc-account-card h2,
.pc-account-card h3 {
  margin: 0;
}

.pc-account-card--privacy {
  grid-column: 1 / -1;
}

.pc-account-card--sync {
  position: relative;
  overflow: hidden;
}

.pc-account-card--sync::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: color-mix(in srgb, var(--pc-primary) 70%, transparent);
}

.pc-sync-state--unconfigured::before {
  background: color-mix(in srgb, var(--pc-accent) 72%, transparent);
}

.pc-sync-state--logged-in::before {
  background: color-mix(in srgb, #169b62 80%, transparent);
}

.pc-account-metric-grid {
  margin-top: 0.85rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.pc-account-metric {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface-strong) 86%, transparent);
  padding: 0.72rem 0.8rem;
}

.pc-account-metric__label {
  margin: 0;
  color: var(--pc-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.72rem;
  font-weight: 700;
}

.pc-account-metric__value {
  margin: 0.34rem 0 0;
  color: var(--pc-text);
  font-family: var(--pc-font-display);
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  line-height: 1.06;
  font-weight: 700;
}

.pc-account-status {
  margin: 0.62rem 0 0;
  color: var(--pc-text-muted);
}

.pc-account-actions {
  margin-top: 1.05rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.pc-account-field {
  margin-top: 0.8rem;
  display: grid;
  gap: 0.4rem;
}

.pc-account-input {
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid var(--pc-border);
  padding: 0.55rem 0.7rem;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
  color: var(--pc-text);
}

.pc-account-message {
  margin-top: 0.8rem;
  min-height: 0;
  border: 1px solid color-mix(in srgb, var(--pc-border) 68%, transparent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-surface-strong) 82%, transparent);
  padding: 0.55rem 0.7rem;
  color: var(--pc-text-muted);
}

.pc-account-message:empty {
  display: none;
}

.pc-account-message.pc-is-error {
  color: #b42318;
  border-color: color-mix(in srgb, #b42318 48%, var(--pc-border));
  background: color-mix(in srgb, #b42318 10%, var(--pc-surface));
}

.pc-account-message.pc-is-success {
  color: #169b62;
  border-color: color-mix(in srgb, #169b62 44%, var(--pc-border));
  background: color-mix(in srgb, #169b62 10%, var(--pc-surface));
}

.pc-account-note {
  color: var(--pc-text-muted);
  margin-top: 0.58rem;
  line-height: 1.62;
}

.pc-account-note code {
  border: 1px solid var(--pc-border);
  border-radius: 8px;
  padding: 0.08rem 0.35rem;
  background: color-mix(in srgb, var(--pc-surface-strong) 84%, transparent);
  font-size: 0.82rem;
}

.pc-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--pc-border);
  border-radius: 12px;
}

.pc-leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}

.pc-leaderboard-table th,
.pc-leaderboard-table td {
  padding: 0.72rem 0.8rem;
  border-bottom: 1px solid var(--pc-border);
  text-align: left;
}

.pc-leaderboard-table th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--pc-text-muted);
}

.pc-leaderboard-table tbody tr:last-child td {
  border-bottom: none;
}

.pc-empty-state {
  margin: 1rem 0 0;
  color: var(--pc-text-muted);
}

@media print {
  .pc-case-page .pc-portal-nav,
  .pc-case-page .pc-games-quickbar {
    display: none !important;
  }

  .pc-case-page {
    background: var(--pc-surface) !important;
    color: var(--pc-text) !important;
    padding: 0 !important;
  }

  .pc-case-page .pc-bridge-shell {
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .pc-case-page .pc-case-article {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
  }

  .pc-case-page .pc-print-url {
    display: block !important;
    margin: 0 0 0.7rem !important;
    color: var(--pc-text) !important;
    font-size: 11pt;
  }

  .pc-case-page a[href]::after {
    content: ' (' attr(href) ')';
    font-size: 9pt;
  }
}

@media (max-width: 1024px) {
  .pc-topic-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pc-bridge-card-grid,
  .pc-stat-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pc-navle-clean-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pc-arcade-stats {
    grid-template-columns: 1fr 1fr;
  }

  .pc-game-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pc-study-layout {
    grid-template-columns: 1fr;
  }

  .pc-skill-card-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pc-account-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .pc-fork-layout {
    grid-template-columns: 1fr;
  }

  .pc-fork-panel {
    min-height: auto;
  }

  .pc-intersection {
    position: static;
    transform: none;
    width: 100%;
    margin-top: 1rem;
  }
}

@media (max-width: 1100px) {
  .pc-home-tier-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (hover: none), (max-width: 900px) {
  .pc-home-tier-grid {
    grid-template-columns: 1fr;
  }

  .pc-home-tier-card {
    min-height: auto;
  }

  .pc-home-tier-card:hover {
    transform: none;
  }

  .pc-home-tier-card:hover,
  .pc-home-tier-card:focus-within {
    min-height: auto;
    z-index: auto;
  }

  .pc-home-tier-links--two-col {
    grid-template-columns: 1fr;
  }

  .pc-home-tier-inside {
    max-height: 1400px;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    overflow: auto;
  }

  .pc-home-tier-inside::after {
    opacity: 0;
  }

  .pc-home-tier-links {
    transform: none;
  }
}

@media (max-width: 768px) {
  .pc-portal-nav__inner {
    grid-template-columns: 1fr;
  }

  .pc-logo {
    justify-content: center;
  }

  .pc-nav-group {
    justify-content: center;
  }

  .pc-nav-action {
    padding: 0.52rem;
    min-width: 44px;
  }

  .pc-nav-action__label {
    display: none;
  }

  .pc-page--home,
  .pc-page--info,
  .pc-page--bridge,
  .pc-page--search,
  .pc-page--play,
  .pc-page--study {
    padding-top: calc(8.6rem + env(safe-area-inset-top));
  }

  .pc-bridge-card-grid,
  .pc-stat-grid,
  .pc-topic-grid {
    grid-template-columns: 1fr;
  }

  .pc-navle-clean-grid {
    grid-template-columns: 1fr;
  }

  .pc-section {
    padding: 1rem;
  }

  .pc-skill-card-grid,
  .pc-link-strip {
    padding: 0 1rem;
  }

  .pc-hero-profile {
    grid-template-columns: 1fr;
  }

  .pc-experience-grid,
  .pc-competency-grid,
  .pc-game-grid,
  .pc-arcade-stats,
  .pc-game-card--featured {
    grid-template-columns: 1fr;
  }

  .pc-plan-presets {
    grid-template-columns: 1fr;
  }

  .pc-account-hero__surface {
    padding: 1rem;
  }

  .pc-account-metric-grid {
    grid-template-columns: 1fr;
  }

  .pc-account-actions .pc-btn,
  .pc-account-actions a.pc-btn {
    flex: 1 1 100%;
  }

  .pc-game-card--featured .pc-game-thumb {
    border-right: none;
    border-bottom: 1px solid var(--pc-border);
  }

  .pc-game-nav {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .pc-game-nav__center {
    justify-content: center;
  }

  .pc-game-nav__right {
    justify-content: center;
  }

  .pc-game-stage {
    margin-top: 116px;
    height: calc(100dvh - 116px);
  }

  .pc-game-iframe {
    height: calc(100dvh - 116px);
  }

  .pc-skill-card-grid {
    grid-template-columns: 1fr;
  }

  .pc-games-quickbar {
    position: fixed;
    top: auto;
    bottom: calc(0.75rem + env(safe-area-inset-bottom));
    right: max(0.75rem, env(safe-area-inset-right));
  }
}

@media (prefers-reduced-motion: reduce) {
  .pc-page *,
  .pc-page *::before,
  .pc-page *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .pc-card-hover:hover,
  .pc-btn:hover {
    transform: none;
  }
}

@media (prefers-contrast: high) {
  .pc-btn {
    border: 2px solid currentColor;
  }
}

@media print {
  .pc-games-quickbar,
  .pc-portal-nav {
    display: none !important;
  }

  .pc-page {
    background: white !important;
    color: black !important;
  }
}

/* ===============================
   Premium Redesign Overrides
   =============================== */

.pc-page {
  background: var(--pc-bg-primary);
  color: var(--pc-text-primary);
  font-family: var(--pc-font-body);
  font-size: var(--pc-text-base);
  line-height: 1.6;
  overflow-x: clip;
}

.pc-page
  a:not(.pc-btn):not(.pc-nav-link):not(.pc-logo):not(.pc-link-chip):not(
    .pc-nav-submenu__link
  ) {
  color: var(--pc-teal);
  transition: color var(--pc-transition-fast);
}

.pc-page
  a:not(.pc-btn):not(.pc-nav-link):not(.pc-logo):not(.pc-link-chip):not(
    .pc-nav-submenu__link
  ):hover {
  color: var(--pc-teal-light);
}

[data-theme='dark']
  .pc-page
  a:not(.pc-btn):not(.pc-nav-link):not(.pc-logo):not(.pc-link-chip):not(
    .pc-nav-submenu__link
  ) {
  color: var(--pc-mint);
}

[data-theme='dark']
  .pc-page
  a:not(.pc-btn):not(.pc-nav-link):not(.pc-logo):not(.pc-link-chip):not(
    .pc-nav-submenu__link
  ):hover {
  color: var(--pc-coral);
}

.pc-card,
.pc-account-card,
.pc-study-panel,
.pc-bridge-hero,
.pc-bridge-section,
.pc-case-article,
.pc-search-panel,
.pc-search-group,
.pc-section {
  background: var(--pc-bg-secondary);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-lg);
  box-shadow: var(--pc-shadow-md);
}

.pc-card {
  padding: var(--pc-space-lg);
  transition:
    border-color var(--pc-transition-base),
    box-shadow var(--pc-transition-base),
    transform var(--pc-transition-base);
}

.pc-card:hover {
  box-shadow: var(--pc-shadow-lg);
  transform: translateY(-2px);
}

.pc-case-article.pc-card:hover,
.pc-study-panel.pc-study-plan-card:hover,
.pc-account-card:hover {
  transform: none;
}

.pc-card--interactive {
  cursor: pointer;
}

.pc-card--interactive:hover {
  border-color: var(--pc-teal);
}

[data-theme='dark'] .pc-card,
[data-theme='dark'] .pc-account-card,
[data-theme='dark'] .pc-study-panel,
[data-theme='dark'] .pc-case-article,
[data-theme='dark'] .pc-bridge-hero,
[data-theme='dark'] .pc-bridge-section,
[data-theme='dark'] .pc-search-panel,
[data-theme='dark'] .pc-search-group,
[data-theme='dark'] .pc-section {
  background: var(--pc-bg-secondary);
  border-color: var(--pc-border);
}

/* Navigation */
.pc-nav,
.pc-portal-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--pc-space-md);
  flex-wrap: wrap;
  background: color-mix(in srgb, var(--pc-bg-secondary) 92%, transparent);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-xl);
  box-shadow: var(--pc-shadow-md);
  backdrop-filter: blur(10px);
}

.pc-logo,
.pc-nav__brand {
  color: var(--pc-teal);
  font-size: var(--pc-text-xl);
  font-weight: 700;
  text-decoration: none;
  background: transparent;
  border: 0;
  padding: var(--pc-space-sm) var(--pc-space-md);
}

.pc-nav-group,
.pc-nav__links {
  display: flex;
  align-items: center;
  gap: var(--pc-space-sm);
  list-style: none;
  margin: 0;
  padding: 0;
}

.pc-nav-link,
.pc-nav__link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--pc-text-secondary);
  text-decoration: none;
  font-weight: 600;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--pc-radius-md);
  padding: var(--pc-space-sm) var(--pc-space-md);
  position: relative;
  transition:
    color var(--pc-transition-fast),
    border-color var(--pc-transition-fast),
    background-color var(--pc-transition-fast);
}

.pc-nav-link::after,
.pc-nav__link::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 12px;
  width: calc(100% - 24px);
  height: 2px;
  background: var(--pc-coral);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--pc-transition-base);
}

.pc-nav-link:hover,
.pc-nav__link:hover {
  color: var(--pc-teal);
  background: color-mix(in srgb, var(--pc-teal) 10%, var(--pc-bg-secondary));
  border-color: color-mix(in srgb, var(--pc-teal) 40%, var(--pc-border));
}

.pc-nav-link:hover::after,
.pc-nav__link:hover::after {
  transform: scaleX(1);
}

.pc-nav-link.pc-is-active,
.pc-nav__link--active {
  color: var(--pc-teal);
  border-color: color-mix(in srgb, var(--pc-teal) 35%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-teal) 12%, var(--pc-bg-secondary));
  font-weight: 700;
}

.pc-nav-toggle {
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  background: var(--pc-bg-secondary);
  color: var(--pc-text-secondary);
  min-height: 44px;
  padding: var(--pc-space-sm) var(--pc-space-md);
  transition:
    border-color var(--pc-transition-fast),
    color var(--pc-transition-fast),
    background-color var(--pc-transition-fast);
}

.pc-nav-toggle:hover {
  border-color: var(--pc-teal);
  color: var(--pc-teal);
  background: color-mix(in srgb, var(--pc-teal) 10%, var(--pc-bg-secondary));
}

/* Keep header layout stable when toggle labels change text length. */
.pc-nav-toggle[data-pc-mode-toggle] {
  min-inline-size: 11.75rem;
  justify-content: center;
}

.pc-nav-toggle[data-pc-theme-toggle] {
  min-inline-size: 8.75rem;
  justify-content: center;
}

[data-theme='dark'] .pc-nav,
[data-theme='dark'] .pc-portal-nav__inner {
  background: color-mix(in srgb, var(--pc-bg-primary) 94%, transparent);
  border-color: var(--pc-border);
}

[data-theme='dark'] .pc-logo,
[data-theme='dark'] .pc-nav__brand {
  color: var(--pc-mint);
}

[data-theme='dark'] .pc-nav-link,
[data-theme='dark'] .pc-nav__link {
  color: var(--pc-text-secondary);
}

[data-theme='dark'] .pc-nav-link:hover,
[data-theme='dark'] .pc-nav__link:hover {
  color: var(--pc-mint);
  border-color: color-mix(in srgb, var(--pc-mint) 45%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-mint) 12%, var(--pc-bg-secondary));
}

[data-theme='dark'] .pc-nav-link.pc-is-active,
[data-theme='dark'] .pc-nav__link--active {
  color: var(--pc-mint);
  border-color: color-mix(in srgb, var(--pc-mint) 45%, var(--pc-border));
}

/* Buttons */
.pc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--pc-space-sm);
  padding: var(--pc-space-sm) var(--pc-space-lg);
  font-family: var(--pc-font-body);
  font-size: var(--pc-text-base);
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--pc-radius-md);
  cursor: pointer;
  transition:
    transform var(--pc-transition-fast),
    box-shadow var(--pc-transition-fast),
    background-color var(--pc-transition-fast),
    color var(--pc-transition-fast),
    border-color var(--pc-transition-fast);
  min-height: 44px;
}

.pc-btn,
.pc-btn--primary {
  background: var(--pc-teal);
  color: #ffffff;
}

.pc-btn:hover,
.pc-btn--primary:hover {
  background: var(--pc-teal-light);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--pc-shadow-md);
}

.pc-btn:active,
.pc-btn--primary:active {
  transform: translateY(0);
  box-shadow: var(--pc-shadow-sm);
}

.pc-btn--secondary,
.pc-btn-secondary {
  background: transparent;
  color: var(--pc-teal);
  border-color: var(--pc-teal);
}

.pc-btn--secondary:hover,
.pc-btn-secondary:hover {
  background: var(--pc-teal);
  color: #ffffff;
}

.pc-btn--coral,
.pc-btn--mint {
  background: var(--pc-coral);
  color: #ffffff;
}

.pc-btn--coral:hover,
.pc-btn--mint:hover {
  background: var(--pc-coral-light);
}

.pc-btn--ghost {
  background: transparent;
  color: var(--pc-text-secondary);
  border-color: transparent;
}

.pc-btn--ghost:hover {
  background: var(--pc-bg-tertiary);
  color: var(--pc-text-primary);
}

.pc-btn--small {
  min-height: 36px;
  padding: 0.35rem 0.7rem;
  font-size: var(--pc-text-sm);
  border-width: 1px;
}

.pc-btn:disabled,
.pc-btn--disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

[data-theme='dark'] .pc-btn,
[data-theme='dark'] .pc-btn--primary {
  background: var(--pc-teal);
  color: #121826;
  font-weight: 700;
}

[data-theme='dark'] .pc-btn--secondary,
[data-theme='dark'] .pc-btn-secondary {
  border-color: var(--pc-teal);
  color: var(--pc-teal);
  background: transparent;
}

[data-theme='dark'] .pc-btn--secondary:hover,
[data-theme='dark'] .pc-btn-secondary:hover {
  background: var(--pc-teal);
  color: #121826;
}

/* Forms */
.pc-form,
.pc-diagnose-form,
.pc-auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--pc-space-md);
}

.pc-input,
.pc-textarea,
.pc-account-input {
  width: 100%;
  padding: var(--pc-space-sm) var(--pc-space-md);
  font-family: var(--pc-font-body);
  font-size: var(--pc-text-base);
  line-height: 1.5;
  color: var(--pc-text-primary);
  background: var(--pc-bg-secondary);
  border: 2px solid var(--pc-border);
  border-radius: var(--pc-radius-md);
  transition:
    border-color var(--pc-transition-fast),
    box-shadow var(--pc-transition-fast);
}

.pc-input:focus,
.pc-textarea:focus,
.pc-account-input:focus {
  outline: none;
  border-color: var(--pc-teal);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--pc-teal) 20%, transparent);
}

.pc-input[aria-invalid='true'],
.pc-textarea[aria-invalid='true'],
.pc-account-input[aria-invalid='true'] {
  border-color: var(--pc-error);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--pc-error) 20%, transparent);
}

.pc-radio-label,
.pc-diagnose-form .pc-radio-label {
  display: flex;
  align-items: flex-start;
  gap: var(--pc-space-sm);
  padding: var(--pc-space-md);
  background: var(--pc-bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--pc-radius-md);
  cursor: pointer;
  transition:
    border-color var(--pc-transition-fast),
    background-color var(--pc-transition-fast),
    transform var(--pc-transition-fast);
}

.pc-radio-label:hover,
.pc-diagnose-form .pc-radio-label:hover {
  border-color: var(--pc-teal);
  background: var(--pc-bg-secondary);
  transform: translateY(-1px);
}

.pc-radio-label input[type='radio'] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--pc-teal);
  cursor: pointer;
  flex: 0 0 auto;
}

.pc-radio-label input[type='radio']:checked + span {
  font-weight: 700;
  color: var(--pc-teal);
}

[data-theme='dark'] .pc-input,
[data-theme='dark'] .pc-textarea,
[data-theme='dark'] .pc-account-input {
  background: var(--pc-bg-tertiary);
  color: var(--pc-text-primary);
  border-color: var(--pc-border);
}

[data-theme='dark'] .pc-input:focus,
[data-theme='dark'] .pc-textarea:focus,
[data-theme='dark'] .pc-account-input:focus {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--pc-mint) 28%, transparent);
}

[data-theme='dark'] .pc-radio-label {
  background: var(--pc-bg-tertiary);
}

[data-theme='dark'] .pc-radio-label:hover {
  background: var(--pc-bg-secondary);
  border-color: var(--pc-mint);
}

[data-theme='dark'] .pc-radio-label input[type='radio']:checked + span {
  color: var(--pc-mint);
}

/* Tables */
.pc-table,
.pc-leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--pc-text-base);
}

.pc-table th,
.pc-table td,
.pc-leaderboard-table th,
.pc-leaderboard-table td {
  padding: var(--pc-space-md);
  text-align: left;
  border-bottom: 1px solid var(--pc-border);
}

.pc-table th,
.pc-leaderboard-table th {
  font-weight: 600;
  color: var(--pc-text-secondary);
  text-transform: uppercase;
  font-size: var(--pc-text-sm);
  letter-spacing: 0.05em;
  background: var(--pc-bg-tertiary);
}

.pc-table tbody tr:hover,
.pc-leaderboard-table tbody tr:hover {
  background: color-mix(
    in srgb,
    var(--pc-bg-tertiary) 65%,
    var(--pc-bg-secondary)
  );
}

.pc-table tbody tr:last-child td,
.pc-leaderboard-table tbody tr:last-child td {
  border-bottom: none;
}

[data-theme='dark'] .pc-table th,
[data-theme='dark'] .pc-leaderboard-table th {
  background: var(--pc-bg-tertiary);
  color: var(--pc-text-muted);
}

[data-theme='dark'] .pc-table tbody tr:hover,
[data-theme='dark'] .pc-leaderboard-table tbody tr:hover {
  background: color-mix(
    in srgb,
    var(--pc-bg-tertiary) 85%,
    var(--pc-bg-secondary)
  );
}

/* Practice Question */
.pc-case-header {
  margin-bottom: var(--pc-space-2xl);
}

.pc-case-badge {
  display: inline-block;
  padding: var(--pc-space-xs) var(--pc-space-md);
  background: var(--pc-coral);
  color: #ffffff;
  font-size: var(--pc-text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--pc-radius-full);
  margin-bottom: var(--pc-space-md);
}

.pc-case-title {
  font-size: clamp(var(--pc-text-2xl), 4vw, var(--pc-text-4xl));
  font-weight: 800;
  color: var(--pc-text-primary);
  line-height: 1.2;
  margin: 0 0 var(--pc-space-lg) 0;
}

.pc-case-section {
  margin-bottom: var(--pc-space-lg);
  padding: var(--pc-space-lg);
}

.pc-signalment-card,
.pc-signalment {
  background: var(--pc-bg-tertiary);
  border: 1px solid var(--pc-border);
  border-left: 4px solid var(--pc-teal);
  border-radius: 0 var(--pc-radius-md) var(--pc-radius-md) 0;
  padding: var(--pc-space-lg);
  margin-bottom: var(--pc-space-xl);
}

.pc-signalment-card ul,
.pc-signalment ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--pc-space-md);
}

.pc-signalment-card li,
.pc-signalment li {
  display: flex;
  flex-direction: column;
  gap: var(--pc-space-xs);
}

.pc-signalment-card strong,
.pc-signalment strong {
  font-size: var(--pc-text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pc-text-muted);
  font-weight: 600;
}

.pc-signalment-card span,
.pc-signalment span {
  font-size: var(--pc-text-lg);
  font-weight: 600;
  color: var(--pc-text-primary);
}

.pc-diagnose-box {
  background: linear-gradient(
    135deg,
    var(--pc-bg-tertiary) 0%,
    var(--pc-bg-secondary) 100%
  );
  border: 2px solid var(--pc-border);
  border-radius: var(--pc-radius-xl);
  padding: var(--pc-space-xl);
  margin: var(--pc-space-2xl) 0;
}

.pc-diagnose-box h3 {
  color: var(--pc-teal);
  font-size: var(--pc-text-2xl);
  margin: 0 0 var(--pc-space-lg);
  display: flex;
  align-items: center;
  gap: var(--pc-space-sm);
}

.pc-diagnose-box h3::before {
  content: 'Q';
  display: inline-grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--pc-teal) 15%, var(--pc-bg-secondary));
  color: var(--pc-teal);
  font-size: var(--pc-text-sm);
  font-weight: 800;
}

.pc-diagnose-actions {
  display: flex;
  align-items: center;
  gap: var(--pc-space-md);
  flex-wrap: wrap;
}

.pc-answer {
  margin-top: var(--pc-space-lg);
  padding: var(--pc-space-lg);
  background: var(--pc-bg-secondary);
  border-radius: var(--pc-radius-md);
  border-left: 4px solid var(--pc-success);
}

.pc-answer--correct {
  border-left-color: var(--pc-success);
  background: color-mix(in srgb, var(--pc-success) 14%, var(--pc-bg-secondary));
}

.pc-answer--incorrect {
  border-left-color: var(--pc-error);
  background: color-mix(in srgb, var(--pc-error) 14%, var(--pc-bg-secondary));
}

.pc-completed-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--pc-space-xs);
  padding: var(--pc-space-xs) var(--pc-space-md);
  background: var(--pc-success);
  color: #ffffff;
  font-size: var(--pc-text-sm);
  font-weight: 600;
  border-radius: var(--pc-radius-full);
  border: 0;
}

.pc-diagnose-container {
  margin: 2rem 0;
  padding: 1.5rem;
  background: var(--pc-bg-tertiary);
  border-radius: 12px;
}

.pc-diagnose-question {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.pc-diagnose-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.pc-diagnose-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: #ffffff;
  border: 2px solid var(--pc-border);
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s;
  color: var(--pc-text-primary);
}

.pc-diagnose-option:hover:not(:disabled) {
  border-color: var(--pc-teal);
  background: var(--pc-bg-primary);
}

.pc-diagnose-option:disabled {
  cursor: default;
}

.pc-diagnose-option--correct {
  border-color: var(--pc-success) !important;
  background: rgba(72, 187, 120, 0.1) !important;
}

.pc-diagnose-option--incorrect {
  border-color: var(--pc-error) !important;
  background: rgba(229, 62, 62, 0.1) !important;
}

.pc-option-letter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--pc-teal);
  color: #ffffff;
  border-radius: 50%;
  font-weight: 700;
  flex-shrink: 0;
}

.pc-diagnose-option--correct .pc-option-letter {
  background: var(--pc-success);
}

.pc-diagnose-option--incorrect .pc-option-letter {
  background: var(--pc-error);
}

.pc-diagnose-feedback {
  margin-top: 1rem;
  padding: 1.5rem;
  background: var(--pc-bg-secondary);
  border-radius: 8px;
  border-left: 4px solid var(--pc-teal);
}

.pc-feedback-title {
  margin: 0 0 0.5rem 0;
  font-size: 1.25rem;
}

.pc-feedback-title--correct {
  color: var(--pc-success);
}

.pc-feedback-title--incorrect {
  color: var(--pc-error);
}

.pc-completion-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  background: var(--pc-success);
  color: #ffffff;
  border-radius: 20px;
  font-weight: 600;
}

.pc-case-intel {
  border: 1px solid color-mix(in srgb, var(--pc-primary) 36%, var(--pc-border));
  background: linear-gradient(
    150deg,
    color-mix(in srgb, var(--pc-surface) 92%, transparent),
    color-mix(in srgb, var(--pc-primary) 10%, var(--pc-surface))
  );
  box-shadow:
    0 18px 40px rgba(2, 12, 27, 0.14),
    inset 0 1px 0 color-mix(in srgb, #fff 52%, transparent);
}

.pc-case-intel__header {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.pc-case-intel__header h2 {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  color: var(--pc-primary);
}

.pc-case-intel__meta {
  margin: 0;
  color: var(--pc-text-muted);
  font-size: 0.92rem;
}

.pc-case-intel__meta code {
  border: 1px solid var(--pc-border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
  padding: 0.12rem 0.45rem;
  color: var(--pc-text);
}

.pc-case-intel__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.pc-case-intel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.pc-case-intel__list--ordered {
  list-style: decimal;
  padding-left: 1.2rem;
}

.pc-case-intel__item {
  margin: 0;
}

.pc-case-intel__summary {
  margin: 0.45rem 0 0;
  color: var(--pc-text-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.pc-context-note {
  margin: 0 0 1rem;
  border: 1px solid color-mix(in srgb, var(--pc-primary) 26%, var(--pc-border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-primary) 9%, var(--pc-surface));
  padding: 0.55rem 0.7rem;
}

.pc-case-assessment {
  grid-column: 1 / -1;
}

.pc-case-assessment__score {
  margin: 0.1rem 0 0.75rem;
  border: 1px solid color-mix(in srgb, var(--pc-primary) 24%, var(--pc-border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-primary) 10%, var(--pc-surface));
  padding: 0.58rem 0.68rem;
  font-weight: 700;
  color: var(--pc-text);
}

.pc-case-assessment__score--pass {
  border-color: color-mix(in srgb, #169b62 54%, var(--pc-border));
  background: color-mix(in srgb, #169b62 14%, var(--pc-surface));
  color: #0f7a4e;
}

.pc-case-assessment__score--review {
  border-color: color-mix(in srgb, #c05918 48%, var(--pc-border));
  background: color-mix(in srgb, #f7b063 18%, var(--pc-surface));
  color: #8a3f0e;
}

.pc-case-assessment__steps {
  display: grid;
  gap: 0.72rem;
}

.pc-case-step {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-surface) 95%, transparent);
  padding: 0.72rem;
}

.pc-case-step--locked {
  opacity: 0.62;
}

.pc-case-step--correct {
  border-color: color-mix(in srgb, #169b62 48%, var(--pc-border));
  background: color-mix(in srgb, #169b62 11%, var(--pc-surface));
}

.pc-case-step--retry {
  border-color: color-mix(in srgb, #c05918 48%, var(--pc-border));
  background: color-mix(in srgb, #f7b063 14%, var(--pc-surface));
}

.pc-case-step__title {
  margin: 0;
  font-weight: 750;
  color: var(--pc-primary);
}

.pc-case-step__prompt {
  margin: 0.3rem 0 0;
  color: var(--pc-text);
  line-height: 1.5;
}

.pc-case-step__teachable {
  margin: 0.32rem 0 0;
  color: var(--pc-text-muted);
  font-size: 0.9rem;
}

.pc-case-step__controls {
  margin-top: 0.65rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.pc-case-step__controls .pc-input {
  width: min(220px, 100%);
}

.pc-case-step__feedback {
  margin: 0.55rem 0 0;
  font-weight: 650;
  color: var(--pc-text-muted);
}

.pc-case-step__feedback--ok {
  color: #0f7a4e;
}

.pc-case-step__feedback--warn {
  color: #8a3f0e;
}

.pc-case-outcome {
  grid-column: 1 / -1;
}

.pc-case-outcome__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.pc-case-outcome__field {
  display: grid;
  gap: 0.32rem;
}

.pc-case-outcome__field span {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--pc-text-muted);
}

.pc-case-outcome__field:first-child {
  grid-column: 1 / -1;
}

.pc-case-outcome__text {
  min-height: 84px;
  resize: vertical;
}

.pc-case-outcome__check {
  min-height: 44px;
  border: 1px solid var(--pc-border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
  padding: 0.45rem 0.6rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--pc-text);
}

.pc-case-outcome__status {
  margin: 0.1rem 0 0;
  color: var(--pc-text-muted);
  font-weight: 650;
}

@media (max-width: 900px) {
  .pc-case-intel__grid {
    grid-template-columns: 1fr;
  }

  .pc-case-step__controls .pc-input {
    width: 100%;
  }

  .pc-case-outcome__grid {
    grid-template-columns: 1fr;
  }
}

/* Account */
.pc-account-page {
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: var(--pc-space-2xl);
}

.pc-account-section {
  margin-bottom: var(--pc-space-2xl);
}

.pc-account-section__title {
  font-size: var(--pc-text-2xl);
  font-weight: 700;
  color: var(--pc-text-primary);
  margin-bottom: var(--pc-space-md);
  display: flex;
  align-items: center;
  gap: var(--pc-space-sm);
}

.pc-account-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--pc-space-lg);
}

.pc-account-metric {
  background: var(--pc-bg-secondary);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-lg);
  padding: var(--pc-space-lg);
  text-align: center;
  transition:
    border-color var(--pc-transition-fast),
    transform var(--pc-transition-fast),
    box-shadow var(--pc-transition-fast);
}

.pc-account-metric:hover {
  border-color: var(--pc-teal);
  transform: translateY(-2px);
  box-shadow: var(--pc-shadow-md);
}

.pc-account-metric__label {
  font-size: var(--pc-text-sm);
  color: var(--pc-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 var(--pc-space-sm) 0;
}

.pc-account-metric__value {
  font-size: var(--pc-text-3xl);
  font-weight: 800;
  color: var(--pc-teal);
  margin: 0;
}

.pc-status-success {
  color: var(--pc-success);
  padding: var(--pc-space-md);
  background: color-mix(in srgb, var(--pc-success) 14%, var(--pc-bg-secondary));
  border-radius: var(--pc-radius-md);
  border-left: 4px solid var(--pc-success);
}

.pc-status-error {
  color: var(--pc-error);
  padding: var(--pc-space-md);
  background: color-mix(in srgb, var(--pc-error) 14%, var(--pc-bg-secondary));
  border-radius: var(--pc-radius-md);
  border-left: 4px solid var(--pc-error);
}

.pc-status-info {
  color: var(--pc-info);
  padding: var(--pc-space-md);
  background: color-mix(in srgb, var(--pc-info) 14%, var(--pc-bg-secondary));
  border-radius: var(--pc-radius-md);
  border-left: 4px solid var(--pc-info);
}

/* Leaderboard */
.pc-leaderboard-page {
  max-width: 900px;
  margin: 0 auto;
  padding-bottom: var(--pc-space-2xl);
}

.pc-leaderboard {
  background: var(--pc-bg-secondary);
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-xl);
  overflow: hidden;
  box-shadow: var(--pc-shadow-lg);
}

.pc-leaderboard-header {
  background: var(--pc-bg-tertiary);
  padding: var(--pc-space-lg);
  border-bottom: 1px solid var(--pc-border);
  margin-bottom: var(--pc-space-lg);
}

.pc-leaderboard-title {
  font-size: var(--pc-text-2xl);
  font-weight: 700;
  margin: 0;
  color: var(--pc-text-primary);
}

.pc-leaderboard-subtitle {
  color: var(--pc-text-muted);
  margin: var(--pc-space-xs) 0 0 0;
}

.pc-leaderboard-table-container {
  overflow-x: auto;
}

.pc-leaderboard-row.pc-leaderboard-top {
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--pc-mint) 20%, transparent) 0%,
    transparent 100%
  );
}

.pc-leaderboard-row.pc-leaderboard-top .pc-leaderboard-rank {
  color: var(--pc-mint-dark);
  font-weight: 800;
  font-size: var(--pc-text-xl);
}

[data-theme='dark']
  .pc-leaderboard-row.pc-leaderboard-top
  .pc-leaderboard-rank {
  color: var(--pc-mint);
}

.pc-leaderboard-rank {
  font-weight: 700;
  color: var(--pc-text-muted);
  width: 60px;
}

.pc-leaderboard-name {
  font-weight: 600;
  color: var(--pc-text-primary);
}

.pc-leaderboard-score {
  font-weight: 700;
  color: var(--pc-teal);
  font-size: var(--pc-text-lg);
}

.pc-leaderboard-empty,
.pc-empty-state {
  text-align: center;
  padding: var(--pc-space-xl);
  color: var(--pc-text-muted);
}

#pc-user-rank {
  margin-top: var(--pc-space-sm);
  font-weight: 600;
}

/* Study Planner */
.pc-study-page {
  max-width: 1000px;
  margin: 0 auto;
  padding-bottom: var(--pc-space-2xl);
}

.pc-study-header {
  text-align: center;
  margin-bottom: var(--pc-space-2xl);
}

.pc-study-title {
  font-size: clamp(var(--pc-text-3xl), 5vw, var(--pc-text-4xl));
  font-weight: 800;
  color: var(--pc-text-primary);
  margin-bottom: var(--pc-space-md);
}

.pc-study-subtitle {
  font-size: var(--pc-text-lg);
  color: var(--pc-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.pc-study-plan-card,
.pc-study-topic {
  background: var(--pc-bg-secondary);
  border: 2px solid var(--pc-border);
  border-radius: var(--pc-radius-xl);
  padding: var(--pc-space-lg);
  margin-bottom: var(--pc-space-lg);
  transition:
    border-color var(--pc-transition-base),
    box-shadow var(--pc-transition-base),
    transform var(--pc-transition-base);
}

.pc-study-plan-card:hover,
.pc-study-topic:hover {
  border-color: var(--pc-teal);
  box-shadow: var(--pc-shadow-lg);
}

.pc-study-plan-card--active {
  border-color: var(--pc-teal);
  background: linear-gradient(
    135deg,
    var(--pc-bg-secondary) 0%,
    color-mix(in srgb, var(--pc-teal) 8%, var(--pc-bg-secondary)) 100%
  );
}

.pc-topic-checkbox {
  display: flex;
  align-items: center;
  gap: var(--pc-space-md);
  padding: var(--pc-space-md);
  background: var(--pc-bg-tertiary);
  border-radius: var(--pc-radius-md);
  margin-bottom: var(--pc-space-sm);
  cursor: pointer;
  transition:
    background-color var(--pc-transition-fast),
    box-shadow var(--pc-transition-fast);
}

.pc-topic-checkbox:hover {
  background: var(--pc-bg-secondary);
  box-shadow: var(--pc-shadow-sm);
}

.pc-topic-checkbox input[type='checkbox'] {
  width: 20px;
  height: 20px;
  accent-color: var(--pc-teal);
  margin: 0;
}

.pc-topic-checkbox--completed {
  opacity: 0.7;
  text-decoration: line-through;
}

/* Motion */
@media (prefers-reduced-motion: no-preference) {
  .pc-card,
  .pc-btn,
  .pc-account-metric,
  .pc-study-plan-card {
    transition:
      transform var(--pc-transition-fast),
      box-shadow var(--pc-transition-fast),
      border-color var(--pc-transition-fast);
  }

  .pc-answer:not([hidden]) {
    animation: pc-slide-down var(--pc-transition-base) ease-out;
  }

  .pc-completed-badge:not([hidden]) {
    animation: pc-pop-in var(--pc-transition-base) ease-out;
  }
}

@keyframes pc-slide-down {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pc-pop-in {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Mobile */
@media (max-width: 768px) {
  .pc-page--home,
  .pc-page--info,
  .pc-page--bridge,
  .pc-page--search,
  .pc-page--play,
  .pc-page--study {
    padding-top: calc(6.2rem + env(safe-area-inset-top));
    padding-left: max(0.75rem, env(safe-area-inset-left));
    padding-right: max(0.75rem, env(safe-area-inset-right));
  }

  .pc-nav,
  .pc-portal-nav__inner {
    padding: var(--pc-space-sm);
    flex-wrap: wrap;
    gap: var(--pc-space-sm);
  }

  .pc-nav-group,
  .pc-nav__links {
    width: 100%;
    justify-content: flex-start;
    gap: var(--pc-space-sm);
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: thin;
    padding-bottom: 0.1rem;
  }

  .pc-nav-link,
  .pc-nav-toggle {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .pc-case-title {
    font-size: var(--pc-text-2xl);
  }

  .pc-case-article.pc-card {
    padding: var(--pc-space-md);
  }

  .pc-case-section {
    padding: var(--pc-space-md);
  }

  .pc-signalment-card ul,
  .pc-signalment ul {
    grid-template-columns: 1fr;
  }

  .pc-account-grid {
    grid-template-columns: 1fr;
  }

  .pc-table,
  .pc-leaderboard-table {
    font-size: var(--pc-text-sm);
  }

  .pc-table th,
  .pc-table td,
  .pc-leaderboard-table th,
  .pc-leaderboard-table td {
    padding: var(--pc-space-sm);
  }

  .pc-leaderboard-table {
    min-width: 0;
  }

  .pc-leaderboard-table thead {
    display: none;
  }

  .pc-leaderboard-table tbody,
  .pc-leaderboard-table tr,
  .pc-leaderboard-table td {
    display: block;
    width: 100%;
  }

  .pc-leaderboard-table tr {
    border-bottom: 1px solid var(--pc-border);
    padding: var(--pc-space-sm);
  }

  .pc-leaderboard-table tr:last-child {
    border-bottom: 0;
  }

  .pc-leaderboard-table td {
    border-bottom: 0;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--pc-space-md);
    padding: var(--pc-space-xs) var(--pc-space-sm);
    text-align: right;
  }

  .pc-leaderboard-table td::before {
    content: attr(data-label);
    color: var(--pc-text-muted);
    font-size: var(--pc-text-xs);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    text-align: left;
    flex: 1 1 auto;
  }

  .pc-diagnose-box {
    padding: var(--pc-space-md);
  }

  .pc-diagnose-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .pc-diagnose-actions .pc-completed-badge {
    align-self: flex-start;
  }

  .pc-btn {
    width: 100%;
  }

  .pc-input,
  .pc-account-input,
  .pc-search-input {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .pc-logo {
    width: 100%;
    justify-content: flex-start;
    font-size: var(--pc-text-lg);
    padding: var(--pc-space-xs) var(--pc-space-sm);
  }

  .pc-portal-nav {
    padding-left: max(0.5rem, env(safe-area-inset-left));
    padding-right: max(0.5rem, env(safe-area-inset-right));
  }

  .pc-account-card,
  .pc-study-panel,
  .pc-case-article,
  .pc-bridge-hero {
    padding: var(--pc-space-md);
  }

  .pc-fork-title,
  .pc-study-title,
  .pc-case-title {
    line-height: 1.15;
  }
}

/* Mobile hardening overrides */
@media (max-width: 900px) {
  .pc-section,
  .pc-bridge-section,
  .pc-search-panel,
  .pc-account-card,
  .pc-study-panel,
  .pc-case-article,
  .pc-bridge-hero {
    padding: clamp(0.9rem, 2.4vw, 1.15rem);
  }

  .pc-study-subtitle,
  .pc-fork-copy {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .pc-page--home,
  .pc-page--info,
  .pc-page--bridge,
  .pc-page--search,
  .pc-page--play,
  .pc-page--study {
    padding-top: calc(6.4rem + env(safe-area-inset-top));
  }

  .pc-portal-nav__inner {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .pc-logo {
    width: 100%;
    justify-content: flex-start;
  }

  .pc-nav-group,
  .pc-nav__links {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    padding-bottom: 0.25rem;
  }

  .pc-nav-group > *,
  .pc-nav__links > * {
    flex: 0 0 auto;
  }

  .pc-nav-link,
  .pc-nav-toggle {
    white-space: nowrap;
  }

  .pc-panel-actions {
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .pc-panel-actions .pc-btn,
  .pc-panel-actions .pc-link-chip {
    width: 100%;
  }

  .pc-search-filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.2rem;
  }

  .pc-search-filters .pc-filter-chip {
    flex: 0 0 auto;
  }

  .pc-plan-presets {
    grid-template-columns: 1fr;
  }

  .pc-topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pc-account-hero__surface::after,
  .pc-page--account .pc-account-shell::before {
    display: none;
  }

  .pc-page--gameframe {
    --pc-game-nav-height: calc(132px + env(safe-area-inset-top));
  }

  .pc-game-nav {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      'back title'
      'actions actions';
    gap: 0.42rem 0.5rem;
    align-items: center;
    padding-top: calc(0.32rem + env(safe-area-inset-top));
    padding-bottom: 0.32rem;
  }

  .pc-game-nav__back {
    grid-area: back;
    justify-content: center;
    min-height: 40px;
    font-size: 0.82rem;
    padding: 0.45rem 0.62rem;
  }

  .pc-game-nav__center {
    grid-area: title;
    justify-content: flex-end;
    min-width: 0;
  }

  .pc-game-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: clamp(0.95rem, 3.3vw, 1.08rem);
    line-height: 1.2;
  }

  .pc-game-nav__right {
    grid-area: actions;
    width: 100%;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.1rem;
    gap: 0.4rem;
  }

  .pc-game-nav__right .pc-nav-toggle {
    flex: 0 0 auto;
    min-height: 40px;
    white-space: nowrap;
    padding: 0.45rem 0.62rem;
    font-size: 0.78rem;
  }

  .pc-leaderboard-table td::before {
    min-width: 9rem;
  }

  .pc-games-quickbar {
    max-width: calc(100vw - 1rem);
  }
}

@media (max-width: 620px) {
  .pc-topic-grid {
    grid-template-columns: 1fr;
  }

  .pc-leaderboard-table td {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    gap: 0.2rem;
  }

  .pc-leaderboard-table td::before {
    min-width: 0;
  }

  .pc-page--gameframe {
    --pc-game-nav-height: calc(144px + env(safe-area-inset-top));
  }
}

@media (max-width: 480px) {
  .pc-nav-link,
  .pc-nav-toggle {
    font-size: var(--pc-text-sm);
    padding: var(--pc-space-xs) var(--pc-space-sm);
  }

  .pc-filter-chip {
    min-height: 34px;
    font-size: 0.76rem;
  }

  .pc-page--gameframe {
    --pc-game-nav-height: calc(152px + env(safe-area-inset-top));
  }
}

/* Account page final layout fix */
.pc-page--account .pc-account-page {
  width: min(1080px, 100%);
  max-width: none;
  margin: 0 auto;
  padding-bottom: var(--pc-space-2xl);
}

.pc-page--account .pc-account-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
  gap: clamp(0.85rem, 2.2vw, 1.15rem);
  align-items: start;
}

.pc-page--account .pc-account-card {
  padding: clamp(1rem, 1.8vw, 1.35rem);
}

.pc-page--account .pc-account-card--privacy {
  grid-column: 1 / -1;
}

.pc-page--account .pc-account-section__title {
  font-size: clamp(1.25rem, 2.2vw, 1.5rem);
  line-height: 1.2;
  margin-bottom: var(--pc-space-sm);
}

.pc-page--account .pc-account-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--pc-space-sm);
}

.pc-page--account .pc-account-actions .pc-btn {
  flex: 1 1 220px;
  width: auto;
}

@media (max-width: 900px) {
  .pc-page--account .pc-account-grid {
    grid-template-columns: 1fr;
  }

  .pc-page--account .pc-account-card--privacy {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .pc-page--account .pc-account-actions .pc-btn {
    flex: 1 1 100%;
    width: 100%;
  }
}

.pc-today-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem;
}
.pc-today-header {
  text-align: center;
  margin-bottom: 2rem;
}
.pc-streak-display {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, #ff6b35 0%, #ff8f6b 100%);
  color: white;
  border-radius: 20px;
  font-weight: 700;
  margin-bottom: 1rem;
}
.pc-streak-icon {
  font-size: 1.5rem;
}
.pc-streak-count {
  font-size: 1.5rem;
}
.pc-today-date {
  color: var(--pc-text-muted);
  margin-top: 0.5rem;
}
.pc-today-progress {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
}
.pc-progress-card {
  background: var(--pc-bg-secondary);
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  padding: 1rem 2rem;
  text-align: center;
  min-width: 120px;
}
.pc-progress-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--pc-teal);
}
.pc-progress-label {
  font-size: 0.875rem;
  color: var(--pc-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.pc-today-tasks {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}
.pc-task-card {
  background: var(--pc-bg-secondary);
  border: 2px solid var(--pc-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.2s;
}
.pc-task-card:hover {
  border-color: var(--pc-teal);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.pc-task-card--completed {
  opacity: 0.7;
  border-color: var(--pc-success);
  background: rgba(72, 187, 120, 0.05);
}
.pc-task-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  color: var(--pc-text-muted);
}
.pc-task-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--pc-teal);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.875rem;
}
.pc-task-card--completed .pc-task-number {
  background: var(--pc-success);
}
.pc-task-category {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}
.pc-task-time {
  margin-left: auto;
}
.pc-task-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 0.25rem 0;
  color: var(--pc-text-primary);
}
.pc-task-type {
  color: var(--pc-text-muted);
  margin: 0 0 1rem 0;
  font-size: 0.875rem;
}
.pc-task-complete-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--pc-success);
  color: white;
  border-radius: 20px;
  font-weight: 600;
}
.pc-study-break {
  background: linear-gradient(
    135deg,
    var(--pc-bg-tertiary) 0%,
    var(--pc-bg-secondary) 100%
  );
  border: 2px dashed var(--pc-coral);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  margin-bottom: 2rem;
}
.pc-completion-celebration {
  background: linear-gradient(
    135deg,
    rgba(0, 245, 212, 0.1) 0%,
    var(--pc-bg-secondary) 100%
  );
  border: 2px solid var(--pc-mint);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
}

/* ===============================
   Phase 7: NAVLE Freemium Pages
   =============================== */
.pc-calculator-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.pc-calculator-field {
  display: grid;
  gap: 0.35rem;
}

.pc-calculator-field span {
  font-weight: 700;
  color: var(--pc-text);
}

.pc-calculator-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.pc-calculator-note {
  margin: 0.75rem 0 0;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-calculator-note.pc-is-warning {
  border: 1px solid color-mix(in srgb, var(--pc-warning) 46%, var(--pc-border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-warning) 12%, var(--pc-surface));
  color: color-mix(in srgb, var(--pc-warning) 88%, var(--pc-text));
  padding: 0.5rem 0.65rem;
}

.pc-calculator-warning {
  margin: 0.65rem 0 0;
  border: 1px solid color-mix(in srgb, var(--pc-border) 70%, transparent);
  border-radius: 10px;
  padding: 0.55rem 0.7rem;
  background: color-mix(in srgb, var(--pc-surface-strong) 85%, transparent);
  color: var(--pc-text);
}

.pc-calculator-warning--danger {
  border-color: color-mix(in srgb, var(--pc-error) 45%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-error) 12%, var(--pc-surface));
  color: var(--pc-error);
}

.pc-calculator-warning--caution {
  border-color: color-mix(in srgb, var(--pc-warning) 48%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-warning) 12%, var(--pc-surface));
  color: color-mix(in srgb, var(--pc-warning) 80%, var(--pc-text));
}

.pc-stat-grid--results {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pc-bridge-card--inline {
  margin-top: 0.8rem;
}

.pc-calculator-highlight {
  margin: 0;
  color: var(--pc-primary);
  font-size: clamp(1.3rem, 2.8vw, 1.7rem);
  font-weight: 800;
}

.pc-table-row--critical td {
  background: color-mix(in srgb, var(--pc-error) 10%, var(--pc-bg-secondary));
}

.pc-triage-tree {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface-strong) 90%, transparent);
  padding: 0.95rem;
}

.pc-triage-question {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
}

.pc-triage-options {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.pc-triage-result {
  margin: 0.75rem 0;
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  padding: 0.7rem 0.75rem;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
}

.pc-triage-result--yes {
  border-color: color-mix(in srgb, var(--pc-error) 52%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-error) 13%, var(--pc-surface));
  color: var(--pc-error);
}

.pc-triage-result--no {
  border-color: color-mix(in srgb, var(--pc-success) 48%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-success) 11%, var(--pc-surface));
  color: color-mix(in srgb, var(--pc-success) 75%, var(--pc-text));
}

.pc-topic-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.pc-topic-card {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
  padding: 0.85rem;
}

.pc-topic-card h3 {
  margin: 0 0 0.35rem;
  color: var(--pc-primary);
}

.pc-topic-card p {
  margin: 0.28rem 0 0;
  color: var(--pc-text-muted);
}

.pc-algorithm-rail {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.pc-algorithm-step {
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid var(--pc-border);
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  color: var(--pc-text);
  font-weight: 700;
  cursor: pointer;
}

.pc-algorithm-step:hover {
  border-color: var(--pc-primary);
}

.pc-algorithm-step.pc-is-active {
  background: color-mix(in srgb, var(--pc-primary) 16%, var(--pc-surface));
  border-color: var(--pc-primary);
  color: var(--pc-primary);
}

.pc-algorithm-panel {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  padding: 0.85rem;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
}

.pc-algorithm-panel + .pc-algorithm-panel {
  margin-top: 0.55rem;
}

.pc-algorithm-panel h3 {
  margin: 0 0 0.5rem;
  color: var(--pc-primary);
}

.pc-algorithm-stack {
  display: grid;
  gap: 0.6rem;
}

.pc-protocol-list {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.5rem;
  color: var(--pc-text);
  line-height: 1.6;
}

.pc-navle-guide-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  counter-reset: navle-guide;
}

.pc-navle-guide-item {
  counter-increment: navle-guide;
  position: relative;
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--pc-surface) 92%, var(--pc-primary)),
    color-mix(in srgb, var(--pc-surface) 97%, transparent)
  );
  padding: 0.85rem 0.95rem 0.85rem 3.5rem;
  box-shadow: 0 12px 26px color-mix(in srgb, var(--pc-primary) 12%, transparent);
  transition:
    transform 180ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease;
}

.pc-navle-guide-item::before {
  content: counter(navle-guide);
  position: absolute;
  left: 0.9rem;
  top: 0.85rem;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--pc-cta-text);
  background: var(--pc-cta-bg);
  box-shadow: 0 8px 16px color-mix(in srgb, var(--pc-cta-bg) 35%, transparent);
}

.pc-navle-guide-item:hover,
.pc-navle-guide-item:focus-within {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--pc-primary) 58%, var(--pc-border));
  box-shadow: 0 16px 28px color-mix(in srgb, var(--pc-primary) 20%, transparent);
}

.pc-navle-guide-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-decoration: none;
  color: var(--pc-primary);
  font-weight: 800;
  line-height: 1.35;
  font-size: 1.03rem;
}

.pc-navle-guide-link::after {
  content: '→';
  font-size: 0.9rem;
  opacity: 0.72;
  transform: translateX(0);
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

.pc-navle-guide-item:hover .pc-navle-guide-link::after,
.pc-navle-guide-item:focus-within .pc-navle-guide-link::after {
  transform: translateX(3px);
  opacity: 1;
}

.pc-navle-guide-summary {
  margin: 0.35rem 0 0;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-navle-guide-status {
  margin: 0.45rem 0 0;
  width: fit-content;
  min-height: 26px;
  border-radius: 999px;
  padding: 0.15rem 0.58rem;
  border: 1px solid color-mix(in srgb, var(--pc-border) 80%, transparent);
  background: color-mix(in srgb, var(--pc-surface-strong) 82%, transparent);
  color: var(--pc-text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.pc-navle-topic-pill {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--pc-primary) 52%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-primary) 12%, var(--pc-surface));
  color: var(--pc-primary);
  min-height: 28px;
  align-items: center;
  padding: 0.2rem 0.62rem;
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.pc-navle-topic-list {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.45rem;
  color: var(--pc-text);
  line-height: 1.6;
}

.pc-navle-plan-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.5rem;
  color: var(--pc-text);
  line-height: 1.6;
}

.pc-practice-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}

.pc-practice-counter,
.pc-practice-score {
  margin: 0;
  font-weight: 700;
  color: var(--pc-text);
}

.pc-practice-card {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface) 94%, transparent);
  padding: 0.95rem;
}

.pc-practice-stem {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--pc-text);
}

.pc-practice-options {
  margin-top: 0.85rem;
  display: grid;
  gap: 0.55rem;
}

.pc-practice-option {
  width: 100%;
  text-align: left;
  border: 1px solid var(--pc-border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
  color: var(--pc-text);
  min-height: 44px;
  padding: 0.7rem 0.75rem;
  font-size: 0.95rem;
  cursor: pointer;
  transition:
    border-color var(--pc-transition-fast),
    background-color var(--pc-transition-fast);
}

.pc-practice-option:hover:not(:disabled) {
  border-color: var(--pc-primary);
  background: color-mix(in srgb, var(--pc-primary) 8%, var(--pc-surface));
}

.pc-practice-option:disabled {
  cursor: default;
}

.pc-practice-option strong {
  margin-right: 0.25rem;
}

.pc-practice-option--correct {
  border-color: color-mix(in srgb, var(--pc-success) 65%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-success) 14%, var(--pc-surface));
}

.pc-practice-option--incorrect {
  border-color: color-mix(in srgb, var(--pc-error) 62%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-error) 14%, var(--pc-surface));
}

.pc-question-card {
  background: var(--pc-bg-secondary);
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  padding: 1.2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  min-height: 380px;
}

.pc-question-container {
  min-height: 430px;
}

.pc-question-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
  color: var(--pc-text-muted);
  flex-wrap: wrap;
}

.pc-question-stem {
  font-size: 1.1rem;
  margin: 0 0 1.2rem;
  line-height: 1.6;
  color: var(--pc-text);
}

.pc-question-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}

.pc-option-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--pc-bg-tertiary);
  border: 2px solid var(--pc-border);
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  color: var(--pc-text);
  transition:
    border-color var(--pc-transition-fast),
    background-color var(--pc-transition-fast);
}

.pc-option-btn:hover:not(:disabled) {
  border-color: var(--pc-teal);
  background: var(--pc-bg-secondary);
}

.pc-option-btn:focus-visible {
  outline: 3px solid var(--pc-focus);
  outline-offset: 2px;
  border-color: var(--pc-teal);
}

.pc-option-btn:disabled {
  cursor: default;
}

.pc-option-key {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-weight: 700;
  color: #ffffff;
  background: var(--pc-teal);
  flex-shrink: 0;
}

.pc-option--correct {
  border-color: var(--pc-success) !important;
  background: color-mix(
    in srgb,
    var(--pc-success) 16%,
    var(--pc-bg-secondary)
  ) !important;
}

.pc-option--incorrect {
  border-color: var(--pc-error) !important;
  background: color-mix(
    in srgb,
    var(--pc-error) 14%,
    var(--pc-bg-secondary)
  ) !important;
}

.pc-option--correct .pc-option-key {
  background: var(--pc-success);
}

.pc-option--incorrect .pc-option-key {
  background: var(--pc-error);
}

.pc-question-feedback {
  padding: 1.1rem;
  border-radius: 8px;
  margin-top: 1rem;
}

.pc-question-feedback h4 {
  margin: 0 0 0.55rem;
}

.pc-question-feedback h5 {
  margin: 0.8rem 0 0.35rem;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--pc-text-muted);
}

.pc-question-feedback p {
  margin: 0.35rem 0;
  line-height: 1.6;
}

.pc-question-feedback .pc-btn {
  margin-top: 0.9rem;
}

.pc-question-explanation-list {
  margin: 0.35rem 0 0.4rem 1.15rem;
  padding: 0;
}

.pc-question-explanation-list li {
  margin: 0.2rem 0;
  line-height: 1.55;
}

.pc-feedback--correct {
  background: color-mix(in srgb, var(--pc-success) 12%, var(--pc-bg-secondary));
  border-left: 4px solid var(--pc-success);
}

.pc-feedback--incorrect {
  background: color-mix(in srgb, var(--pc-error) 12%, var(--pc-bg-secondary));
  border-left: 4px solid var(--pc-error);
}

.pc-view-controls {
  position: fixed;
  bottom: max(0.85rem, env(safe-area-inset-bottom));
  z-index: 2050;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.pc-view-controls--left {
  left: max(0.85rem, env(safe-area-inset-left));
  align-items: flex-start;
}

.pc-view-controls--right {
  right: max(0.85rem, env(safe-area-inset-right));
  align-items: flex-end;
}

.pc-view-trigger {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--pc-border);
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  color: var(--pc-text);
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18);
}

.pc-view-trigger:hover,
.pc-view-trigger:focus-visible {
  border-color: var(--pc-teal);
}

.pc-view-panel {
  width: min(86vw, 260px);
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  padding: 0.8rem;
  background: color-mix(in srgb, var(--pc-bg-secondary) 94%, transparent);
  box-shadow: 0 14px 26px rgba(0, 0, 0, 0.2);
}

.pc-view-panel__title {
  margin: 0 0 0.55rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--pc-text);
}

.pc-view-scale-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 0.5rem;
}

.pc-view-mini-btn {
  min-height: 34px;
  border: 1px solid var(--pc-border);
  border-radius: 8px;
  padding: 0.3rem 0.55rem;
  background: var(--pc-bg-tertiary);
  color: var(--pc-text);
  cursor: pointer;
}

.pc-view-mini-btn:hover,
.pc-view-mini-btn:focus-visible {
  border-color: var(--pc-teal);
}

.pc-view-scale-value {
  text-align: center;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--pc-text);
}

.pc-view-desktop-toggle {
  margin-top: 0.6rem;
  width: 100%;
  min-height: 36px;
  border: 1px solid var(--pc-border);
  border-radius: 8px;
  background: var(--pc-bg-tertiary);
  color: var(--pc-text);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
}

.pc-view-desktop-toggle--floating {
  margin-top: 0;
  width: auto;
  min-height: 44px;
  border-radius: 999px;
  padding: 0.52rem 0.82rem;
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18);
}

.pc-view-desktop-toggle:hover,
.pc-view-desktop-toggle:focus-visible {
  border-color: var(--pc-teal);
}

.pc-force-desktop-view body {
  min-width: 1200px;
}

@media print {
  .pc-view-controls {
    display: none !important;
  }
}

.pc-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: grid;
  place-items: center;
  z-index: 2100;
  padding: 1rem;
}

.pc-modal[hidden] {
  display: none;
}

.pc-modal__surface {
  width: min(520px, 100%);
  border: 1px solid var(--pc-border);
  border-radius: 16px;
  background: var(--pc-bg-secondary);
  box-shadow: var(--pc-shadow-xl);
  padding: 1rem;
  max-height: min(86vh, 760px);
  overflow: auto;
}

.pc-modal__surface--practice {
  position: relative;
  padding-top: 2.25rem;
}

.pc-modal__close {
  position: absolute;
  top: 0.6rem;
  right: 0.65rem;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  background: var(--pc-bg-tertiary);
  color: var(--pc-text);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
}

.pc-modal__close:hover,
.pc-modal__close:focus-visible {
  border-color: var(--pc-primary);
}

.pc-modal__actions {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.pc-modal__actions .pc-btn {
  flex: 1 1 190px;
}

.pc-modal__divider {
  border: 0;
  border-top: 1px solid var(--pc-border);
  margin: 0.85rem 0;
}

.pc-modal__surface h2 {
  margin: 0 0 0.6rem;
  color: var(--pc-primary);
}

.pc-modal__surface p {
  margin: 0.4rem 0;
  color: var(--pc-text-muted);
}

.pc-text-small {
  font-size: 0.82rem;
  color: var(--pc-text-muted);
}

#payment-gate .pc-modal__surface {
  width: min(860px, 100%);
}

.pc-pricing-grid {
  margin-top: 0.85rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

@media (prefers-reduced-motion: reduce) {
  .pc-option-btn,
  .pc-practice-option,
  .pc-tool-launch,
  .pc-btn {
    transition: none !important;
  }
}

.pc-pricing-card {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
  padding: 0.9rem;
  position: relative;
}

.pc-pricing-card h3 {
  margin: 0;
  color: var(--pc-text);
  font-size: 1.1rem;
}

.pc-price {
  margin: 0.45rem 0 0.55rem;
  color: var(--pc-primary) !important;
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  font-weight: 800;
  line-height: 1;
}

.pc-price span {
  margin-left: 0.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--pc-text-muted);
}

.pc-pricing-card ul {
  margin: 0 0 0.75rem;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.4rem;
  color: var(--pc-text);
}

.pc-pricing-card button {
  width: 100%;
}

.pc-pricing--featured {
  border-color: color-mix(in srgb, var(--pc-coral) 60%, var(--pc-border));
  background: linear-gradient(
    155deg,
    color-mix(in srgb, var(--pc-coral) 11%, var(--pc-bg-secondary)),
    var(--pc-bg-secondary)
  );
  box-shadow: 0 16px 32px color-mix(in srgb, var(--pc-coral) 20%, transparent);
}

.pc-pricing--featured .pc-badge {
  margin-bottom: 0.5rem;
}

.pc-pricing-card .pc-btn[disabled] {
  opacity: 0.65;
}

@media (max-width: 900px) {
  .pc-calculator-grid,
  .pc-topic-cards,
  .pc-algorithm-rail,
  .pc-stat-grid--results,
  .pc-pricing-grid {
    grid-template-columns: 1fr;
  }

  .pc-navle-guide-item {
    padding-left: 3.2rem;
  }
}

@media (max-width: 640px) {
  .pc-practice-stem {
    font-size: 1rem;
  }

  .pc-practice-option {
    font-size: 0.92rem;
  }

  .pc-navle-guide-item {
    padding: 0.78rem 0.78rem 0.78rem 2.95rem;
  }

  .pc-navle-guide-item::before {
    left: 0.7rem;
    top: 0.75rem;
    width: 1.75rem;
    height: 1.75rem;
    font-size: 0.76rem;
  }
}

/* ===============================
   Navigation Hierarchy Refresh
   =============================== */
.pc-nav-group {
  gap: 0.32rem;
}

.pc-nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.pc-nav-item--depth-0.pc-nav-item--has-menu::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 0.65rem;
}

.pc-nav-item--depth-0.pc-nav-item--has-menu > .pc-nav-link {
  padding-right: 1.05rem;
}

.pc-nav-item--depth-0.pc-nav-item--has-menu > .pc-nav-link::before {
  content: '▾';
  font-size: 0.62rem;
  opacity: 0.7;
  margin-left: 0.35rem;
}

.pc-nav-submenu .pc-nav-item {
  display: block;
}

.pc-nav-submenu .pc-nav-item--has-menu::after {
  content: '';
  position: absolute;
  top: 0;
  left: 100%;
  width: 0.55rem;
  height: 100%;
}

.pc-nav-submenu {
  position: absolute;
  top: calc(100% + 0.45rem);
  left: 0;
  min-width: 210px;
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  padding: 0.35rem;
  display: grid;
  gap: 0.2rem;
  background: color-mix(in srgb, var(--pc-surface) 97%, transparent);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.14);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition:
    opacity 0.16s ease,
    transform 0.16s ease;
  z-index: 1700;
}

.pc-nav-item--has-menu:hover > .pc-nav-submenu,
.pc-nav-item--has-menu:focus-within > .pc-nav-submenu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.pc-nav-submenu--nested {
  top: -0.35rem;
  left: calc(100% + 0.32rem);
  transform: translateX(8px);
}

.pc-nav-submenu__link {
  min-height: 40px;
  border-radius: 10px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  text-decoration: none;
  color: var(--pc-text);
  font-size: 0.82rem;
  font-weight: 650;
  padding: 0.45rem 0.6rem;
}

.pc-nav-submenu__trigger {
  width: 100%;
  justify-content: space-between;
}

.pc-nav-submenu__trigger::after {
  content: '▸';
  font-size: 0.62rem;
  opacity: 0.72;
  margin-left: 0.5rem;
}

.pc-nav-submenu__link:hover,
.pc-nav-submenu__link:focus-visible {
  border-color: color-mix(in srgb, var(--pc-primary) 45%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-primary) 12%, var(--pc-surface));
}

.pc-nav-submenu__link--active {
  border-color: color-mix(in srgb, var(--pc-primary) 48%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-primary) 14%, var(--pc-surface));
  color: var(--pc-primary);
}

/* ===============================
   Mode Visual Split
   =============================== */
[data-mode='pro'] {
  --pc-mode-bg:
    radial-gradient(
      circle at 8% 8%,
      color-mix(in srgb, var(--pc-primary) 13%, transparent),
      transparent 52%
    ),
    linear-gradient(
      160deg,
      color-mix(in srgb, var(--pc-bg-primary) 96%, #fff 4%),
      var(--pc-bg-primary)
    );
  --pc-mode-surface: color-mix(in srgb, var(--pc-surface) 95%, transparent);
  --pc-mode-border: color-mix(in srgb, var(--pc-primary) 32%, var(--pc-border));
}

[data-mode='play'] {
  --pc-mode-bg:
    radial-gradient(
      circle at 14% 16%,
      color-mix(in srgb, #ffb347 34%, transparent),
      transparent 48%
    ),
    radial-gradient(
      circle at 85% 0%,
      color-mix(in srgb, #00d4b8 24%, transparent),
      transparent 40%
    ),
    linear-gradient(
      150deg,
      color-mix(in srgb, #ff6b35 10%, var(--pc-bg-primary)),
      var(--pc-bg-primary)
    );
  --pc-mode-surface: color-mix(
    in srgb,
    var(--pc-surface) 90%,
    color-mix(in srgb, #ff6b35 8%, transparent)
  );
  --pc-mode-border: color-mix(in srgb, var(--pc-accent) 42%, var(--pc-border));
}

.pc-page {
  background: var(--pc-mode-bg, var(--pc-bg-primary));
}

.pc-card,
.pc-account-card,
.pc-study-panel,
.pc-bridge-hero,
.pc-bridge-section,
.pc-case-article,
.pc-search-panel,
.pc-search-group,
.pc-section {
  background: var(--pc-mode-surface, var(--pc-bg-secondary));
  border-color: var(--pc-mode-border, var(--pc-border));
}

/* ===============================
   Toggle Redesign
   =============================== */
.pc-nav-toggle {
  position: relative;
  overflow: hidden;
}

.pc-nav-toggle--mode {
  min-inline-size: 11.5rem !important;
  justify-content: center;
  font-weight: 700;
  letter-spacing: 0.01em;
}

[data-mode='pro'] .pc-nav-toggle--mode {
  background: linear-gradient(
    120deg,
    color-mix(in srgb, var(--pc-primary) 14%, var(--pc-bg-secondary)),
    var(--pc-bg-secondary)
  );
  border-color: color-mix(in srgb, var(--pc-primary) 52%, var(--pc-border));
  color: var(--pc-primary);
}

[data-mode='play'] .pc-nav-toggle--mode {
  background: linear-gradient(
    120deg,
    color-mix(in srgb, var(--pc-accent) 22%, var(--pc-bg-secondary)),
    color-mix(in srgb, #ffb347 18%, var(--pc-bg-secondary))
  );
  border-color: color-mix(in srgb, var(--pc-accent) 54%, var(--pc-border));
  color: color-mix(in srgb, var(--pc-text) 80%, #000);
}

.pc-nav-toggle--theme {
  min-inline-size: 44px !important;
  width: 44px;
  padding: 0 !important;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
}

.pc-nav-toggle--theme::before {
  content: '';
  position: absolute;
  inset: -30%;
  background: conic-gradient(
    from 90deg,
    transparent 0deg,
    rgba(255, 191, 71, 0.6) 75deg,
    rgba(0, 212, 184, 0.6) 165deg,
    transparent 235deg,
    transparent 360deg
  );
  opacity: 0;
  transition: opacity 0.18s ease;
  animation: pc-theme-path 1.15s linear infinite;
}

.pc-nav-toggle--theme:hover::before,
.pc-nav-toggle--theme:focus-visible::before {
  opacity: 1;
}

.pc-nav-toggle__icon {
  position: relative;
  z-index: 1;
  font-size: 1.02rem;
  line-height: 1;
}

.pc-nav-toggle__label--visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
  white-space: nowrap;
}

@keyframes pc-theme-path {
  0% {
    transform: rotate(0deg) scale(1);
    filter: blur(0.6px);
  }
  100% {
    transform: rotate(360deg) scale(1);
    filter: blur(0.6px);
  }
}

@media (max-width: 900px) {
  .pc-nav-item {
    width: 100%;
  }

  .pc-nav-item--has-menu > .pc-nav-link::before {
    display: none;
  }

  .pc-nav-submenu {
    position: static;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    margin-top: 0.3rem;
    min-width: 0;
    box-shadow: none;
  }

  .pc-nav-submenu--nested {
    margin-left: 0.55rem;
    margin-top: 0.25rem;
  }

  .pc-nav-submenu__trigger::after {
    content: '▾';
  }
}

/* ===============================
   Clinical Toolkit Modules
   =============================== */
.pc-tools-launch-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.pc-tool-subtitle {
  margin: 0.2rem 0 0.7rem;
  color: var(--pc-text-muted);
  font-size: 0.92rem;
}

.pc-tool-launch {
  --pc-tool-accent: #2f8fda;
  --pc-tool-glow: rgba(47, 143, 218, 0.22);
  display: grid;
  gap: 0.25rem;
  border-radius: 14px;
  padding: 0.88rem 0.95rem;
  border: 1px solid
    color-mix(in srgb, var(--pc-tool-accent) 45%, var(--pc-border));
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--pc-surface) 86%, var(--pc-tool-accent)),
    color-mix(in srgb, var(--pc-surface) 95%, var(--pc-tool-accent))
  );
  color: var(--pc-text);
  text-decoration: none;
  transition:
    transform 180ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease,
    background 220ms ease;
}

.pc-tool-launch span {
  font-weight: 700;
  color: var(--pc-primary);
}

.pc-tool-launch small {
  margin: 0;
  color: var(--pc-text-muted);
  font-size: 0.76rem;
  letter-spacing: 0.01em;
}

.pc-tool-launch:hover,
.pc-tool-launch:focus-visible {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--pc-tool-accent) 72%, var(--pc-border));
  box-shadow: 0 14px 26px var(--pc-tool-glow);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--pc-surface) 76%, var(--pc-tool-accent)),
    color-mix(in srgb, var(--pc-surface) 92%, var(--pc-tool-accent))
  );
}

.pc-tool-launch:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--pc-tool-accent) 68%, transparent);
  outline-offset: 2px;
}

.pc-tool-launch--mint {
  --pc-tool-accent: #1f9d8b;
  --pc-tool-glow: rgba(31, 157, 139, 0.22);
}

.pc-tool-launch--sky {
  --pc-tool-accent: #247ac0;
  --pc-tool-glow: rgba(36, 122, 192, 0.22);
}

.pc-tool-launch--teal {
  --pc-tool-accent: #0f8f7a;
  --pc-tool-glow: rgba(15, 143, 122, 0.24);
}

.pc-tool-launch--amber {
  --pc-tool-accent: #ad7a18;
  --pc-tool-glow: rgba(173, 122, 24, 0.23);
}

.pc-tool-launch--coral {
  --pc-tool-accent: #ca5e3b;
  --pc-tool-glow: rgba(202, 94, 59, 0.23);
}

.pc-tool-launch--indigo {
  --pc-tool-accent: #4264c8;
  --pc-tool-glow: rgba(66, 100, 200, 0.24);
}

.pc-tool-launch--violet {
  --pc-tool-accent: #6a5acd;
  --pc-tool-glow: rgba(106, 90, 205, 0.25);
}

.pc-tool-launch--rose {
  --pc-tool-accent: #c04f7a;
  --pc-tool-glow: rgba(192, 79, 122, 0.24);
}

.pc-tool-launch--cobalt {
  --pc-tool-accent: #2f6fb2;
  --pc-tool-glow: rgba(47, 111, 178, 0.23);
}

.pc-tool-launch--emerald {
  --pc-tool-accent: #258f54;
  --pc-tool-glow: rgba(37, 143, 84, 0.23);
}

.pc-tool-launch--sunset {
  --pc-tool-accent: #c76a2f;
  --pc-tool-glow: rgba(199, 106, 47, 0.25);
}

.pc-tool-launch--lime {
  --pc-tool-accent: #6f9d2a;
  --pc-tool-glow: rgba(111, 157, 42, 0.24);
}

.pc-tool-launch--priority {
  border-width: 2px;
}

.pc-tool-launch--planned {
  border-style: dashed;
  opacity: 0.94;
}

.pc-er-concentration-control {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.pc-er-concentration-input.pc-input {
  width: 7.2rem;
  min-width: 7.2rem;
  padding: 0.36rem 0.5rem;
  border-width: 1px;
  font-size: 0.84rem;
}

.pc-er-concentration-unit {
  color: var(--pc-text-muted);
  font-size: 0.78rem;
  white-space: nowrap;
}

.pc-er-default {
  display: block;
  margin-top: 0.24rem;
  color: var(--pc-text-muted);
  font-size: 0.72rem;
  line-height: 1.4;
}

.pc-er-concentration-na {
  color: var(--pc-text-muted);
  font-size: 0.8rem;
}

.pc-tool-module-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.pc-tool-module {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface) 94%, transparent);
  padding: 0.85rem;
  display: grid;
  gap: 0.55rem;
}

.pc-tool-module h3 {
  margin: 0;
  color: var(--pc-primary);
  font-size: 1.03rem;
}

.pc-tool-module p {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.55;
}

.pc-tool-module__status {
  margin: 0;
  width: fit-content;
  min-height: 26px;
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid var(--pc-border);
}

.pc-tool-module__status--live {
  color: #169b62;
  border-color: color-mix(in srgb, #169b62 45%, var(--pc-border));
  background: color-mix(in srgb, #169b62 12%, var(--pc-surface));
}

.pc-tool-module__status--partial {
  color: #9a6700;
  border-color: color-mix(in srgb, #9a6700 42%, var(--pc-border));
  background: color-mix(in srgb, #f5b742 20%, var(--pc-surface));
}

.pc-tool-module__status--planned {
  color: var(--pc-text-muted);
  border-color: color-mix(in srgb, var(--pc-border) 85%, transparent);
  background: color-mix(in srgb, var(--pc-surface-strong) 84%, transparent);
}

.pc-account-note.pc-is-error {
  color: #b42318;
}

.pc-account-note.pc-is-success {
  color: #169b62;
}

@media (max-width: 1024px) {
  .pc-tools-launch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pc-tool-module-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .pc-tools-launch-grid {
    grid-template-columns: 1fr;
  }

  .pc-tool-module-grid {
    grid-template-columns: 1fr;
  }
}

/* ===============================
   Aesthetic Polish Layer
   =============================== */
.pc-portal-nav__inner {
  background:
    linear-gradient(
      140deg,
      color-mix(in srgb, var(--pc-bg-secondary) 96%, #fff 4%),
      color-mix(in srgb, var(--pc-bg-secondary) 88%, transparent)
    ),
    color-mix(in srgb, var(--pc-bg-secondary) 92%, transparent);
  border-color: color-mix(in srgb, var(--pc-primary) 24%, var(--pc-border));
  box-shadow:
    0 14px 34px rgba(2, 12, 27, 0.18),
    inset 0 1px 0 color-mix(in srgb, #fff 55%, transparent);
}

.pc-nav-link {
  background: color-mix(in srgb, var(--pc-bg-secondary) 86%, transparent);
  border-color: color-mix(in srgb, var(--pc-border) 92%, transparent);
  transition:
    color var(--pc-transition-fast),
    border-color var(--pc-transition-fast),
    background-color var(--pc-transition-fast),
    transform var(--pc-transition-fast),
    box-shadow var(--pc-transition-fast);
}

.pc-nav-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px color-mix(in srgb, var(--pc-primary) 18%, transparent);
}

.pc-nav-link.pc-is-active {
  border-color: color-mix(in srgb, var(--pc-primary) 52%, var(--pc-border));
  background: linear-gradient(
    140deg,
    color-mix(in srgb, var(--pc-primary) 18%, var(--pc-bg-secondary)),
    color-mix(in srgb, var(--pc-bg-secondary) 92%, transparent)
  );
  box-shadow:
    0 9px 18px color-mix(in srgb, var(--pc-primary) 24%, transparent),
    inset 0 1px 0 color-mix(in srgb, #fff 55%, transparent);
}

.pc-nav-submenu {
  border-color: color-mix(in srgb, var(--pc-primary) 28%, var(--pc-border));
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--pc-bg-secondary) 95%, #fff 5%),
    color-mix(in srgb, var(--pc-bg-secondary) 91%, transparent)
  );
  box-shadow: 0 18px 38px rgba(2, 12, 27, 0.22);
}

.pc-nav-submenu__link {
  border-radius: 11px;
}

.pc-nav-submenu__link--active {
  box-shadow: inset 0 0 0 1px
    color-mix(in srgb, var(--pc-primary) 45%, var(--pc-border));
}

.pc-home-window {
  position: relative;
  overflow: hidden;
  border-color: color-mix(in srgb, var(--pc-primary) 34%, var(--pc-border));
  box-shadow:
    0 24px 52px rgba(1, 10, 24, 0.18),
    inset 0 1px 0 color-mix(in srgb, #fff 45%, transparent);
  transition:
    transform var(--pc-transition-base),
    box-shadow var(--pc-transition-base),
    border-color var(--pc-transition-base);
}

.pc-home-window > * {
  position: relative;
  z-index: 1;
}

.pc-home-window::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      circle at 14% 12%,
      color-mix(in srgb, var(--pc-accent) 18%, transparent),
      transparent 48%
    ),
    radial-gradient(
      circle at 88% 8%,
      color-mix(in srgb, var(--pc-primary) 12%, transparent),
      transparent 38%
    );
  opacity: 0.86;
  pointer-events: none;
}

.pc-home-window:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--pc-primary) 55%, var(--pc-border));
  box-shadow:
    0 28px 62px rgba(1, 10, 24, 0.24),
    inset 0 1px 0 color-mix(in srgb, #fff 58%, transparent);
}

.pc-home-window-links a {
  color: color-mix(in srgb, var(--pc-primary) 84%, var(--pc-text));
}

.pc-home-window-links a:hover,
.pc-home-window-links a:focus-visible {
  color: var(--pc-primary);
}

.pc-home-window-badge {
  border-color: color-mix(in srgb, var(--pc-warning) 45%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-warning) 18%, var(--pc-surface));
  color: color-mix(in srgb, #6e4700 88%, var(--pc-text));
}

@media (max-width: 900px) {
  .pc-home-window:hover {
    transform: none;
  }
}

/* ===============================
   NAVLE Exam Simulator
   =============================== */
.pc-exam-launch {
  display: grid;
  gap: 0.9rem;
}

.pc-exam-mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.pc-exam-mode-card {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--pc-surface) 95%, transparent),
    color-mix(in srgb, var(--pc-surface-strong) 92%, transparent)
  );
  padding: 0.95rem;
  display: grid;
  gap: 0.65rem;
  align-content: start;
}

.pc-exam-mode-card h3 {
  margin: 0;
  color: var(--pc-primary);
  font-size: 1.08rem;
}

.pc-exam-mode-card p {
  margin: 0;
  color: var(--pc-text-muted);
  line-height: 1.6;
}

.pc-exam-mode-card .pc-btn {
  width: 100%;
}

.pc-exam-mode-card--live {
  border-color: color-mix(in srgb, #169b62 42%, var(--pc-border));
  background:
    radial-gradient(
      circle at 88% 8%,
      color-mix(in srgb, #169b62 16%, transparent),
      transparent 40%
    ),
    linear-gradient(
      145deg,
      color-mix(in srgb, var(--pc-surface) 95%, transparent),
      color-mix(in srgb, #169b62 8%, var(--pc-surface))
    );
}

.pc-exam-shell {
  display: grid;
  gap: 0.8rem;
}

.pc-exam-layout {
  display: grid;
  grid-template-columns: minmax(260px, 330px) 1fr;
  gap: 0.85rem;
  align-items: start;
}

.pc-exam-sidebar {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface) 94%, transparent);
  padding: 0.8rem;
  display: grid;
  gap: 0.75rem;
  position: sticky;
  top: calc(4.75rem + env(safe-area-inset-top) + 0.5rem);
}

.pc-exam-timer-card {
  border: 1px solid color-mix(in srgb, var(--pc-primary) 28%, var(--pc-border));
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-primary) 8%, var(--pc-surface));
  padding: 0.7rem;
}

.pc-exam-label {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--pc-text-muted);
}

.pc-exam-timer {
  margin: 0.28rem 0 0.18rem;
  font-size: clamp(1.4rem, 2.8vw, 1.85rem);
  font-family: var(--pc-font-display);
  font-weight: 800;
  color: var(--pc-text);
  line-height: 1;
}

.pc-exam-timer--warning {
  color: color-mix(in srgb, var(--pc-warning) 80%, var(--pc-text));
}

.pc-exam-timer--danger {
  color: var(--pc-error);
}

.pc-exam-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.pc-exam-stat-card {
  border: 1px solid var(--pc-border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-surface-strong) 86%, transparent);
  padding: 0.5rem;
  text-align: center;
}

.pc-exam-stat-card p {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--pc-text-muted);
}

.pc-exam-stat-card strong {
  display: block;
  margin-top: 0.2rem;
  font-size: 1.02rem;
  color: var(--pc-text);
}

.pc-exam-legend {
  border: 1px dashed color-mix(in srgb, var(--pc-border) 88%, transparent);
  border-radius: 10px;
  padding: 0.55rem;
  background: color-mix(in srgb, var(--pc-surface-strong) 84%, transparent);
}

.pc-exam-section-title {
  margin: 0 0 0.45rem;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--pc-text-muted);
}

.pc-exam-legend-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.pc-exam-legend-chip {
  min-height: 24px;
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  padding: 0.14rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  color: var(--pc-text-muted);
}

.pc-exam-legend-chip--current {
  border-color: color-mix(in srgb, var(--pc-primary) 60%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-primary) 18%, var(--pc-surface));
  color: var(--pc-primary);
}

.pc-exam-legend-chip--answered {
  border-color: color-mix(in srgb, #169b62 58%, var(--pc-border));
  background: color-mix(in srgb, #169b62 14%, var(--pc-surface));
  color: #169b62;
}

.pc-exam-legend-chip--marked {
  border-color: color-mix(in srgb, #b26b00 58%, var(--pc-border));
  background: color-mix(in srgb, #f5b742 24%, var(--pc-surface));
  color: #8a5700;
}

.pc-exam-legend-chip--not-done {
  border-color: color-mix(in srgb, var(--pc-border) 90%, transparent);
  background: color-mix(in srgb, var(--pc-surface-strong) 84%, transparent);
  color: var(--pc-text-muted);
}

.pc-exam-question-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.42rem;
}

.pc-exam-grid-btn {
  min-height: 44px;
  border: 1px solid var(--pc-border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--pc-surface-strong) 86%, transparent);
  color: var(--pc-text);
  font-weight: 800;
  cursor: pointer;
  position: relative;
  transition:
    border-color var(--pc-transition-fast),
    transform var(--pc-transition-fast),
    box-shadow var(--pc-transition-fast);
}

.pc-exam-grid-btn:hover,
.pc-exam-grid-btn:focus-visible {
  border-color: color-mix(in srgb, var(--pc-primary) 62%, var(--pc-border));
  transform: translateY(-1px);
}

.pc-exam-grid-btn--answered {
  border-color: color-mix(in srgb, #169b62 60%, var(--pc-border));
  background: color-mix(in srgb, #169b62 14%, var(--pc-surface));
  color: #0f7448;
}

.pc-exam-grid-btn--marked,
.pc-exam-grid-btn--marked-answered {
  border-color: color-mix(in srgb, #b26b00 60%, var(--pc-border));
  background: color-mix(in srgb, #f5b742 24%, var(--pc-surface));
  color: #6e4700;
}

.pc-exam-grid-btn--marked-answered {
  background: linear-gradient(
    145deg,
    color-mix(in srgb, #f5b742 25%, var(--pc-surface)),
    color-mix(in srgb, #169b62 16%, var(--pc-surface))
  );
}

.pc-exam-grid-btn.pc-is-current {
  border-width: 2px;
  border-color: color-mix(in srgb, var(--pc-primary) 78%, var(--pc-border));
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--pc-primary) 16%, transparent);
}

.pc-exam-grid-flag {
  position: absolute;
  top: 0.12rem;
  right: 0.2rem;
  font-size: 0.62rem;
}

.pc-exam-calculator {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
  padding: 0.55rem;
  display: grid;
  gap: 0.55rem;
}

.pc-exam-calculator-panel {
  display: grid;
  gap: 0.5rem;
}

.pc-exam-calc-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.38rem;
}

.pc-exam-calc-key {
  min-height: 36px;
  border: 1px solid var(--pc-border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  color: var(--pc-text);
  font-weight: 700;
  cursor: pointer;
}

.pc-exam-calc-key:hover,
.pc-exam-calc-key:focus-visible {
  border-color: color-mix(in srgb, var(--pc-primary) 62%, var(--pc-border));
}

#calc-result.pc-is-error {
  color: var(--pc-error);
}

.pc-exam-main {
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-surface) 94%, transparent);
  padding: 0.8rem;
  display: grid;
  gap: 0.75rem;
}

.pc-exam-main-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.pc-exam-nav-actions {
  justify-content: flex-end;
}

.pc-exam-option--selected {
  border-color: color-mix(
    in srgb,
    var(--pc-primary) 66%,
    var(--pc-border)
  ) !important;
  background: color-mix(
    in srgb,
    var(--pc-primary) 14%,
    var(--pc-surface)
  ) !important;
}

.pc-exam-question-chip {
  border: 1px solid var(--pc-border);
  border-radius: 999px;
  min-height: 24px;
  padding: 0.12rem 0.45rem;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
}

.pc-exam-question-chip--marked {
  border-color: color-mix(in srgb, #b26b00 55%, var(--pc-border));
  background: color-mix(in srgb, #f5b742 24%, var(--pc-surface));
  color: #704700;
}

.pc-exam-results {
  display: grid;
  gap: 0.8rem;
}

.pc-exam-result-stat-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.55rem;
}

.pc-exam-result-stat {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-surface-strong) 88%, transparent);
  padding: 0.65rem;
}

.pc-exam-result-stat p {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--pc-text-muted);
}

.pc-exam-result-stat strong {
  display: block;
  margin-top: 0.25rem;
  font-size: 1.2rem;
  color: var(--pc-text);
  line-height: 1.2;
}

.pc-exam-system-grid {
  margin-top: 0.55rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.pc-exam-system-card {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-surface) 92%, transparent);
  padding: 0.65rem;
  display: grid;
  gap: 0.25rem;
}

.pc-exam-system-card h4 {
  margin: 0 0 0.2rem;
  color: var(--pc-primary);
}

.pc-exam-system-card p {
  margin: 0;
  color: var(--pc-text);
}

.pc-exam-review-list {
  margin-top: 0.55rem;
  display: grid;
  gap: 0.55rem;
}

.pc-exam-review-item {
  border: 1px solid var(--pc-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--pc-surface) 94%, transparent);
  padding: 0.65rem;
}

.pc-exam-review-item h4 {
  margin: 0 0 0.3rem;
  color: var(--pc-text);
}

.pc-exam-review-item p {
  margin: 0.2rem 0;
  line-height: 1.6;
}

@media (max-width: 1120px) {
  .pc-exam-layout {
    grid-template-columns: 1fr;
  }

  .pc-exam-sidebar {
    position: static;
  }
}

@media (max-width: 900px) {
  .pc-exam-mode-grid,
  .pc-exam-system-grid {
    grid-template-columns: 1fr;
  }

  .pc-exam-result-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .pc-exam-question-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .pc-exam-main-toolbar .pc-panel-actions,
  .pc-exam-nav-actions {
    width: 100%;
  }

  .pc-exam-main-toolbar .pc-panel-actions .pc-btn,
  .pc-exam-nav-actions .pc-btn {
    flex: 1 1 100%;
  }

  .pc-exam-result-stat-grid {
    grid-template-columns: 1fr;
  }
}

/* 2026 visual refresh: global contrast, typography, and layout polish */
html {
  font-size: 16px;
}

body.pc-page {
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.pc-page p,
.pc-page li,
.pc-page label,
.pc-page dd,
.pc-page dt,
.pc-fork-copy {
  color: var(--pc-text-secondary);
}

.pc-page h1,
.pc-page h2,
.pc-page h3,
.pc-page h4,
.pc-page h5,
.pc-page h6,
.pc-fork-title,
.pc-bridge-title,
.pc-home-tier-title {
  font-family: var(--pc-font-heading);
  letter-spacing: -0.012em;
  color: var(--pc-text-primary);
}

.pc-page a {
  text-underline-offset: 0.18em;
}

.pc-page a:hover {
  text-decoration-thickness: 1.8px;
}

[data-theme='light'] .pc-page {
  background:
    radial-gradient(
      circle at 7% 0%,
      color-mix(in srgb, var(--pc-primary) 13%, transparent),
      transparent 40%
    ),
    radial-gradient(
      circle at 96% 2%,
      color-mix(in srgb, var(--pc-accent) 11%, transparent),
      transparent 38%
    ),
    linear-gradient(
      180deg,
      color-mix(in srgb, #ffffff 76%, var(--pc-bg)) 0%,
      var(--pc-bg) 100%
    );
}

.pc-portal-nav {
  padding-top: calc(0.6rem + env(safe-area-inset-top));
}

.pc-portal-nav__inner {
  width: min(1280px, 100%);
  border-radius: 1.1rem;
  padding: 0.48rem;
  border-color: color-mix(in srgb, var(--pc-primary) 28%, var(--pc-border));
  box-shadow:
    0 14px 30px rgba(10, 40, 72, 0.17),
    inset 0 1px 0 color-mix(in srgb, #ffffff 72%, transparent);
}

.pc-logo {
  min-height: 46px;
  border-radius: 0.85rem;
  padding: 0.66rem 0.96rem;
  font-family: var(--pc-font-heading);
  font-size: 1.04rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--pc-primary);
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--pc-primary) 15%, var(--pc-surface)),
    color-mix(in srgb, #ffffff 74%, var(--pc-surface))
  );
}

.pc-nav-group {
  gap: 0.5rem;
}

.pc-nav-link,
.pc-nav-toggle,
.pc-nav-action,
.pc-nav-pill {
  min-height: 44px;
  border-radius: 0.72rem;
  font-family: var(--pc-font-body);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.pc-nav-toggle {
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--pc-primary) 9%, var(--pc-surface)),
    var(--pc-surface)
  );
}

.pc-home-shell,
.pc-bridge-shell,
.pc-study-shell,
.pc-tools-shell {
  width: min(1240px, 100%);
}

.pc-home-shell > section + section,
.pc-bridge-shell > section + section {
  margin-top: clamp(1rem, 2.5vw, 1.9rem);
}

.pc-bridge-hero,
.pc-bridge-section,
.pc-section,
.pc-card,
.pc-bridge-card,
.pc-home-tier-card,
.pc-tool-module,
.pc-topic-card,
.pc-account-card,
.pc-search-panel,
.pc-search-group,
.pc-study-panel,
.pc-navle-clean-card,
.pc-pricing-card,
.pc-case-article,
.pc-exam-main,
.pc-exam-sidebar {
  border-color: color-mix(in srgb, var(--pc-primary) 24%, var(--pc-border));
  border-radius: 1.05rem;
  background: linear-gradient(
    158deg,
    color-mix(in srgb, var(--pc-surface) 94%, transparent),
    color-mix(in srgb, var(--pc-primary) 5%, var(--pc-surface))
  );
  box-shadow:
    0 14px 30px rgba(8, 30, 56, 0.12),
    inset 0 1px 0 color-mix(in srgb, #ffffff 55%, transparent);
}

.pc-card:hover,
.pc-bridge-card:hover,
.pc-home-tier-card:hover,
.pc-tool-module:hover,
.pc-topic-card:hover,
.pc-navle-clean-card:hover,
.pc-pricing-card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 18px 36px rgba(6, 28, 52, 0.2),
    inset 0 1px 0 color-mix(in srgb, #ffffff 48%, transparent);
}

.pc-kicker {
  font-family: var(--pc-font-heading);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  color: var(--pc-primary);
  background: color-mix(in srgb, var(--pc-primary) 10%, var(--pc-surface));
  border-color: color-mix(in srgb, var(--pc-primary) 34%, var(--pc-border));
}

.pc-home-window-badge,
.pc-navle-guide-status,
.pc-badge {
  border: 1px solid color-mix(in srgb, var(--pc-primary) 28%, var(--pc-border));
  border-radius: 999px;
  background: color-mix(in srgb, var(--pc-primary) 10%, var(--pc-surface));
  color: var(--pc-primary);
  font-weight: 800;
  letter-spacing: 0.02em;
}

.pc-btn,
.pc-btn--primary,
.pc-link-chip--primary {
  border-radius: 0.78rem;
  border: 1px solid color-mix(in srgb, var(--pc-primary) 32%, transparent);
  font-family: var(--pc-font-heading);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: linear-gradient(
    155deg,
    color-mix(in srgb, var(--pc-teal-light) 90%, var(--pc-teal)),
    var(--pc-teal-dark)
  );
  color: #ffffff;
  box-shadow: 0 10px 24px color-mix(in srgb, var(--pc-primary) 28%, transparent);
}

.pc-btn:hover,
.pc-btn--primary:hover,
.pc-link-chip--primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.03);
  box-shadow: 0 14px 28px color-mix(in srgb, var(--pc-primary) 36%, transparent);
}

.pc-btn--secondary,
.pc-btn-secondary,
.pc-link-chip {
  border-radius: 0.78rem;
  border-color: color-mix(in srgb, var(--pc-primary) 30%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  color: var(--pc-primary);
  font-weight: 700;
}

.pc-btn--secondary:hover,
.pc-btn-secondary:hover,
.pc-link-chip:hover {
  border-color: color-mix(in srgb, var(--pc-primary) 58%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-primary) 12%, var(--pc-surface));
}

.pc-btn--coral,
.pc-btn--mint {
  background: linear-gradient(
    160deg,
    color-mix(in srgb, var(--pc-coral-light) 90%, var(--pc-coral)),
    var(--pc-coral-dark)
  );
  border-color: color-mix(in srgb, var(--pc-coral) 44%, transparent);
  color: #ffffff;
}

.pc-input,
.pc-textarea,
.pc-account-input,
.pc-search-input,
.pc-calculator-field input,
.pc-calculator-field select {
  border-width: 1px;
  border-color: color-mix(in srgb, var(--pc-primary) 24%, var(--pc-border));
  border-radius: 0.72rem;
  background: color-mix(in srgb, var(--pc-surface) 96%, transparent);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 60%, transparent);
}

.pc-input:focus,
.pc-textarea:focus,
.pc-account-input:focus,
.pc-search-input:focus,
.pc-calculator-field input:focus,
.pc-calculator-field select:focus {
  border-color: color-mix(in srgb, var(--pc-primary) 62%, var(--pc-border));
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--pc-primary) 18%, transparent),
    inset 0 1px 0 color-mix(in srgb, #ffffff 75%, transparent);
}

.pc-table th,
.pc-leaderboard-table th {
  color: var(--pc-text-primary);
  font-weight: 800;
  background: color-mix(in srgb, var(--pc-primary) 11%, var(--pc-surface));
}

.pc-table td,
.pc-leaderboard-table td {
  color: var(--pc-text-secondary);
}

.pc-table tbody tr:hover,
.pc-leaderboard-table tbody tr:hover {
  background: color-mix(in srgb, var(--pc-primary) 8%, var(--pc-surface));
}

@keyframes pc-rise-fade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.pc-bridge-hero,
.pc-bridge-section,
.pc-home-tier-card {
  animation: pc-rise-fade 520ms ease both;
}

.pc-home-tier-card:nth-child(2),
.pc-bridge-section:nth-child(2) {
  animation-delay: 60ms;
}

.pc-home-tier-card:nth-child(3),
.pc-bridge-section:nth-child(3) {
  animation-delay: 110ms;
}

[data-theme='dark'] .pc-portal-nav__inner,
[data-theme='dark'] .pc-bridge-hero,
[data-theme='dark'] .pc-bridge-section,
[data-theme='dark'] .pc-section,
[data-theme='dark'] .pc-card,
[data-theme='dark'] .pc-bridge-card,
[data-theme='dark'] .pc-home-tier-card,
[data-theme='dark'] .pc-tool-module,
[data-theme='dark'] .pc-topic-card,
[data-theme='dark'] .pc-account-card,
[data-theme='dark'] .pc-search-panel,
[data-theme='dark'] .pc-search-group,
[data-theme='dark'] .pc-study-panel,
[data-theme='dark'] .pc-navle-clean-card,
[data-theme='dark'] .pc-pricing-card,
[data-theme='dark'] .pc-case-article,
[data-theme='dark'] .pc-exam-main,
[data-theme='dark'] .pc-exam-sidebar {
  border-color: color-mix(in srgb, var(--pc-primary) 30%, var(--pc-border));
  background: linear-gradient(
    155deg,
    color-mix(in srgb, var(--pc-surface) 96%, transparent),
    color-mix(in srgb, var(--pc-primary) 7%, var(--pc-surface))
  );
  box-shadow:
    0 14px 30px rgba(0, 0, 0, 0.33),
    inset 0 1px 0 color-mix(in srgb, #ffffff 10%, transparent);
}

[data-theme='dark'] .pc-btn,
[data-theme='dark'] .pc-btn--primary,
[data-theme='dark'] .pc-link-chip--primary {
  color: #0f1b2d;
}

[data-theme='dark'] .pc-btn--secondary,
[data-theme='dark'] .pc-btn-secondary,
[data-theme='dark'] .pc-link-chip {
  color: var(--pc-text-primary);
}

@media (max-width: 900px) {
  .pc-nav-group {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pc-bridge-hero,
  .pc-bridge-section,
  .pc-home-tier-card,
  .pc-card,
  .pc-bridge-card,
  .pc-navle-clean-card,
  .pc-tool-module,
  .pc-topic-card,
  .pc-pricing-card,
  .pc-btn,
  .pc-link-chip {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }
}

/* Home cards: keep bottom panels anchored and prevent hover jump */
.pc-page--home .pc-home-tier-grid {
  align-items: stretch;
}

.pc-page--home .pc-home-tier-card {
  min-height: 560px;
  justify-content: flex-start;
  gap: 0.85rem;
}

.pc-page--home .pc-home-tier-inside {
  margin-top: auto;
  height: 320px;
  min-height: 320px;
  max-height: 320px;
  overflow: auto;
  transform: none;
}

.pc-page--home .pc-home-tier-inside::after {
  opacity: 1;
}

.pc-page--home .pc-home-tier-card:hover,
.pc-page--home .pc-home-tier-card:focus-within {
  transform: none;
}

.pc-page--home .pc-home-tier-card:hover .pc-home-tier-inside,
.pc-page--home .pc-home-tier-card:focus .pc-home-tier-inside,
.pc-page--home .pc-home-tier-card:focus-within .pc-home-tier-inside {
  height: 320px;
  min-height: 320px;
  max-height: 320px;
  overflow: auto;
  transform: none;
}

.pc-page--home .pc-home-tier-cta {
  width: 100%;
  margin-top: 0.35rem;
  justify-content: center;
}

.pc-page--home .pc-home-tier-links,
.pc-page--home .pc-home-tier-card:hover .pc-home-tier-links,
.pc-page--home .pc-home-tier-card:focus .pc-home-tier-links,
.pc-page--home .pc-home-tier-card:focus-within .pc-home-tier-links {
  transform: none;
}

.pc-page--home .pc-home-tier-links li,
.pc-page--home .pc-home-tier-card:hover .pc-home-tier-links li,
.pc-page--home .pc-home-tier-card:focus .pc-home-tier-links li,
.pc-page--home .pc-home-tier-card:focus-within .pc-home-tier-links li {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .pc-page--home .pc-home-tier-card {
    min-height: auto;
  }

  .pc-page--home .pc-home-tier-inside,
  .pc-page--home .pc-home-tier-card:hover .pc-home-tier-inside,
  .pc-page--home .pc-home-tier-card:focus .pc-home-tier-inside,
  .pc-page--home .pc-home-tier-card:focus-within .pc-home-tier-inside {
    height: auto;
    min-height: 0;
    max-height: 1400px;
  }
}

/* Motion system upgrade: cinematic but restrained */
.pc-home-shell,
.pc-bridge-shell,
.pc-study-shell,
.pc-tools-shell,
.pc-search-shell {
  position: relative;
  isolation: isolate;
}

[data-theme='light'] .pc-home-shell::before,
[data-theme='light'] .pc-bridge-shell::before,
[data-theme='light'] .pc-study-shell::before,
[data-theme='light'] .pc-tools-shell::before,
[data-theme='light'] .pc-search-shell::before {
  content: '';
  position: fixed;
  top: 14%;
  right: -14vmax;
  width: 46vmax;
  height: 46vmax;
  border-radius: 999px;
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--pc-primary) 16%, transparent) 0%,
    transparent 66%
  );
  pointer-events: none;
  z-index: -2;
  filter: blur(2px);
  animation: pc-ambient-orbit-a 22s ease-in-out infinite alternate;
}

[data-theme='light'] .pc-home-shell::after,
[data-theme='light'] .pc-bridge-shell::after,
[data-theme='light'] .pc-study-shell::after,
[data-theme='light'] .pc-tools-shell::after,
[data-theme='light'] .pc-search-shell::after {
  content: '';
  position: fixed;
  left: -16vmax;
  bottom: -12vmax;
  width: 42vmax;
  height: 42vmax;
  border-radius: 999px;
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--pc-accent) 14%, transparent) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: -2;
  animation: pc-ambient-orbit-b 28s ease-in-out infinite alternate;
}

[data-theme='dark'] .pc-home-shell::before,
[data-theme='dark'] .pc-bridge-shell::before,
[data-theme='dark'] .pc-study-shell::before,
[data-theme='dark'] .pc-tools-shell::before,
[data-theme='dark'] .pc-search-shell::before {
  content: '';
  position: fixed;
  top: 12%;
  right: -18vmax;
  width: 48vmax;
  height: 48vmax;
  border-radius: 999px;
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--pc-primary) 20%, transparent) 0%,
    transparent 68%
  );
  pointer-events: none;
  z-index: -2;
  opacity: 0.72;
  animation: pc-ambient-orbit-a 24s ease-in-out infinite alternate;
}

.pc-portal-nav__inner {
  animation: pc-nav-settle 520ms cubic-bezier(0.2, 0.9, 0.2, 1) both;
}

.pc-motion-item {
  opacity: 0;
  transform: translateY(14px) scale(0.992);
  filter: saturate(0.94);
  will-change: opacity, transform;
  transition:
    opacity 560ms cubic-bezier(0.24, 0.86, 0.3, 1) var(--pc-motion-delay, 0ms),
    transform 640ms cubic-bezier(0.24, 0.86, 0.3, 1) var(--pc-motion-delay, 0ms),
    filter 620ms ease var(--pc-motion-delay, 0ms);
}

.pc-motion-item.pc-is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: saturate(1);
}

.pc-motion-item--hero {
  transform: translateY(18px) scale(0.988);
  filter: saturate(0.9);
}

.pc-motion-item--soft {
  transform: translateY(8px);
}

.pc-motion-item--float.pc-is-visible {
  animation: pc-surface-float 8.8s ease-in-out var(--pc-float-delay, 480ms) infinite;
}

.pc-home-window-badge,
.pc-badge,
.pc-plan-chip,
.pc-played-badge {
  animation: pc-badge-breathe 5.6s ease-in-out infinite;
}

.pc-btn,
.pc-link-chip {
  position: relative;
  overflow: hidden;
}

.pc-btn::after,
.pc-link-chip::after {
  content: '';
  position: absolute;
  top: -10%;
  left: -46%;
  width: 36%;
  height: 120%;
  background: linear-gradient(
    110deg,
    transparent 0%,
    color-mix(in srgb, #ffffff 56%, transparent) 50%,
    transparent 100%
  );
  transform: skewX(-18deg);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 540ms ease,
    opacity 240ms ease;
}

.pc-btn:hover::after,
.pc-link-chip:hover::after {
  opacity: 0.72;
  transform: translateX(310%) skewX(-18deg);
}

@keyframes pc-nav-settle {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pc-ambient-orbit-a {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(-2.5vmax, 2vmax, 0) scale(1.08);
  }
}

@keyframes pc-ambient-orbit-b {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(3vmax, -2vmax, 0) scale(1.05);
  }
}

@keyframes pc-surface-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(calc(var(--pc-float-amplitude, 3px) * -1));
  }
}

@keyframes pc-badge-breathe {
  0%,
  100% {
    transform: translateY(0);
    box-shadow: 0 8px 18px color-mix(in srgb, var(--pc-accent) 12%, transparent);
  }
  50% {
    transform: translateY(-2px);
    box-shadow: 0 14px 22px
      color-mix(in srgb, var(--pc-primary) 16%, transparent);
  }
}

@media (max-width: 900px) {
  [data-theme='light'] .pc-home-shell::before,
  [data-theme='light'] .pc-bridge-shell::before,
  [data-theme='light'] .pc-study-shell::before,
  [data-theme='light'] .pc-tools-shell::before,
  [data-theme='light'] .pc-search-shell::before,
  [data-theme='light'] .pc-home-shell::after,
  [data-theme='light'] .pc-bridge-shell::after,
  [data-theme='light'] .pc-study-shell::after,
  [data-theme='light'] .pc-tools-shell::after,
  [data-theme='light'] .pc-search-shell::after,
  [data-theme='dark'] .pc-home-shell::before,
  [data-theme='dark'] .pc-bridge-shell::before,
  [data-theme='dark'] .pc-study-shell::before,
  [data-theme='dark'] .pc-tools-shell::before,
  [data-theme='dark'] .pc-search-shell::before {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pc-motion-item,
  .pc-motion-item.pc-is-visible {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
  }

  .pc-portal-nav__inner,
  .pc-bridge-hero,
  .pc-bridge-section,
  .pc-home-tier-card,
  .pc-bridge-card,
  .pc-tool-module,
  .pc-topic-card,
  .pc-study-panel,
  .pc-search-panel,
  .pc-navle-clean-card,
  .pc-pricing-card,
  .pc-account-card,
  .pc-case-article,
  .pc-home-window-badge,
  .pc-badge,
  .pc-plan-chip,
  .pc-played-badge,
  .pc-btn::after,
  .pc-link-chip::after {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }

  .pc-btn::after,
  .pc-link-chip::after {
    opacity: 0 !important;
  }

  [data-theme='light'] .pc-home-shell::before,
  [data-theme='light'] .pc-bridge-shell::before,
  [data-theme='light'] .pc-study-shell::before,
  [data-theme='light'] .pc-tools-shell::before,
  [data-theme='light'] .pc-search-shell::before,
  [data-theme='light'] .pc-home-shell::after,
  [data-theme='light'] .pc-bridge-shell::after,
  [data-theme='light'] .pc-study-shell::after,
  [data-theme='light'] .pc-tools-shell::after,
  [data-theme='light'] .pc-search-shell::after,
  [data-theme='dark'] .pc-home-shell::before,
  [data-theme='dark'] .pc-bridge-shell::before,
  [data-theme='dark'] .pc-study-shell::before,
  [data-theme='dark'] .pc-tools-shell::before,
  [data-theme='dark'] .pc-search-shell::before {
    animation: none !important;
    display: none !important;
  }
}

/* ===============================
   Legal Compliance UI
   =============================== */
.pc-has-legal-banner body {
  padding-top: 54px;
}

.pc-legal-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 3600;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: space-between;
  padding: 0.65rem 0.95rem;
  background: #6b0f1a;
  color: #fff6f4;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}

.pc-legal-banner__text {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.35;
}

.pc-legal-banner__dismiss {
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-radius: 9px;
  min-width: 44px;
  min-height: 44px;
  padding: 0.45rem 0.7rem;
  font-weight: 700;
  cursor: pointer;
}

.pc-legal-banner__dismiss:hover,
.pc-legal-banner__dismiss:focus-visible {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.68);
}

.pc-cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3550;
  padding: 0.8rem;
  display: flex;
  justify-content: center;
}

.pc-cookie-banner__surface {
  width: min(860px, 100%);
  border: 1px solid var(--pc-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--pc-bg-secondary) 95%, transparent);
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.18);
  padding: 0.9rem;
}

.pc-cookie-banner__title {
  margin: 0;
  font-weight: 800;
}

.pc-cookie-banner__copy {
  margin: 0.4rem 0 0.75rem;
  color: var(--pc-text-muted);
  font-size: 0.9rem;
}

.pc-cookie-banner__row {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  font-size: 0.88rem;
  margin: 0.45rem 0;
  color: var(--pc-text);
}

.pc-cookie-banner__row input[type='checkbox'] {
  margin-top: 0.2rem;
}

.pc-cookie-banner__actions {
  margin-top: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.pc-cookie-banner__actions .pc-btn {
  min-height: 44px;
}

.pc-tool-education-warning {
  border: 2px solid #b11e2f;
  border-radius: 12px;
  background: #fff5f7;
  color: #4d0f18;
  padding: 0.9rem;
  margin-bottom: 1rem;
}

.pc-tool-education-warning__headline {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
}

.pc-tool-education-warning__copy {
  margin: 0.35rem 0 0.45rem;
  font-size: 0.9rem;
}

.pc-tool-education-warning__ack {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  font-weight: 600;
}

.pc-tool-education-warning__message {
  margin: 0.45rem 0 0;
  color: #8f1021;
  font-weight: 700;
  min-height: 1.2em;
}

.pc-license-attribution {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  color: var(--pc-text-muted);
}

.pc-legal-mini-footer {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--pc-border);
  background: color-mix(in srgb, var(--pc-surface) 90%, transparent);
  color: var(--pc-text-muted);
  font-size: 0.8rem;
}

.pc-legal-mini-footer p {
  margin: 0;
}

.pc-gameframe-disclaimer {
  position: fixed;
  left: 0.6rem;
  right: 0.6rem;
  bottom: 0.45rem;
  z-index: 3200;
  margin: 0;
  padding: 0.42rem 0.6rem;
  border-radius: 10px;
  font-size: 0.74rem;
  line-height: 1.3;
  color: #fff;
  background: rgba(106, 16, 40, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.pc-account-consent {
  margin-top: 0.85rem;
  padding: 0.75rem;
  border: 1px dashed var(--pc-border);
  border-radius: 10px;
  display: grid;
  gap: 0.55rem;
}

.pc-account-consent label {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--pc-text);
}

.pc-account-consent input[type='checkbox'] {
  margin-top: 0.2rem;
}

.pc-account-consent__note {
  margin: 0;
  font-size: 0.8rem;
  color: var(--pc-text-muted);
}

@media (max-width: 960px) {
  .pc-has-legal-banner body {
    padding-top: 0;
    padding-bottom: 68px;
  }

  .pc-legal-banner {
    top: auto;
    bottom: 0;
    border-bottom: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    align-items: flex-start;
  }

  .pc-cookie-banner {
    bottom: 72px;
  }
}

/* ============================================
   MOBILE MENU STYLES
   ============================================ */

.pc-mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1499;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.pc-mobile-menu-overlay.pc-is-active {
  opacity: 1;
  visibility: visible;
}

.pc-mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background: var(--pc-surface);
  border-left: 1px solid var(--pc-border);
  z-index: 1501;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.pc-mobile-menu.pc-is-open {
  transform: translateX(0);
}

.pc-mobile-menu__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--pc-border);
}

.pc-mobile-menu__title {
  font-family: var(--pc-font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.pc-mobile-menu__close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--pc-text-muted);
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s;
}

.pc-mobile-menu__close:hover {
  background: var(--pc-surface-strong);
  color: var(--pc-text);
}

.pc-mobile-menu__nav {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.pc-mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: var(--pc-radius-sm);
  color: var(--pc-text);
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s;
}

.pc-mobile-nav-link:hover {
  background: color-mix(in srgb, var(--pc-primary) 10%, transparent);
}

.pc-mobile-nav-link__icon {
  font-size: 1.25rem;
}

.pc-mobile-menu__footer {
  padding: 1rem;
  border-top: 1px solid var(--pc-border);
}

.pc-mobile-theme-toggle {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--pc-border);
  border-radius: var(--pc-radius-sm);
  background: var(--pc-surface-strong);
  color: var(--pc-text);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s;
}

.pc-mobile-theme-toggle:hover {
  background: var(--pc-surface);
}

.pc-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

.pc-mobile-toggle__bar {
  width: 24px;
  height: 2px;
  background: var(--pc-text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

@media (max-width: 768px) {
  .pc-mobile-toggle {
    display: flex;
  }
  
  .pc-nav-link--hide-mobile {
    display: none !important;
  }
  
  .pc-nav-search {
    display: none;
  }
}

/* ==========================================
   THEME TOGGLE BUTTON
   ========================================== */

.pc-theme-toggle {
  border-radius: 12px;
  border: 1px solid var(--pc-border);
  min-height: 44px;
  min-width: 44px;
  padding: 0.55rem;
  font-size: 1.1rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  background: var(--pc-surface);
  background: color-mix(in srgb, var(--pc-surface) 95%, transparent);
  color: var(--pc-text);
  transition:
    border-color var(--pc-transition-fast),
    transform var(--pc-transition-fast),
    background var(--pc-transition-fast);
}

.pc-theme-toggle:hover {
  border-color: color-mix(in srgb, var(--pc-primary) 60%, var(--pc-border));
  background: color-mix(in srgb, var(--pc-primary) 14%, var(--pc-surface));
  transform: translateY(-1px);
}

.pc-theme-toggle:active {
  transform: translateY(0);
}

.pc-theme-toggle:focus-visible {
  outline: 3px solid var(--pc-focus);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--pc-focus) 30%, transparent);
}

.pc-theme-toggle__icon {
  display: inline;
}

/* Mobile: hide theme toggle in nav, show in mobile menu */
@media (max-width: 768px) {
  .pc-nav-group > .pc-theme-toggle {
    display: none;
  }
}

/* Theme-specific adjustments */
[data-theme='light'] .pc-theme-toggle {
  background: linear-gradient(
    150deg,
    color-mix(in srgb, #ffffff 86%, var(--pc-surface)),
    color-mix(in srgb, var(--pc-surface) 90%, transparent)
  );
}

/* ==========================================
   DARK MODE DEFAULTS
   ========================================== */

/* Ensure dark mode is default */
:root {
  color-scheme: dark;
}

[data-theme='light'] {
  color-scheme: light;
}

/* Smooth theme transitions */
.pc-page,
.pc-portal-nav__inner,
.pc-nav-link,
.pc-theme-toggle,
.pc-account-card,
.pc-calc-panel,
.pc-tool-launch,
.pc-home-tier-card {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}