/* ==========================================================================
   DVMReady Veterinary Drug Calculator
   Multi-species drug dosing with protocol builder
   ========================================================================== */

.drug-calc-page {
  --dc-bg: #faf9f6;
  --dc-surface: #ffffff;
  --dc-line: #e5e5e5;
  --dc-accent: #0f766e;
  --dc-accent-soft: #e6f4f1;
  --dc-ink: #1a1a1a;
  --dc-muted: #666666;
  --dc-warn: #dc2626;
  --dc-warn-bg: #fef2f2;
  --dc-warn-border: #fecaca;
  --dc-caution-bg: #fffbeb;
  --dc-caution-border: #fde68a;
  --dc-success-bg: #f0fdf4;
  --dc-success-border: #bbf7d0;
  --dc-radius: 16px;
  --dc-radius-sm: 10px;
  --dc-shadow: 0 1px 3px rgba(0,0,0,0.08);
  --dc-shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
}

.drug-calc-page .page {
  padding-bottom: 48px;
}

/* Safety banner */
.dc-safety-banner {
  background: var(--dc-warn-bg);
  border: 1px solid var(--dc-warn-border);
  border-radius: var(--dc-radius);
  padding: 16px 20px;
  margin-bottom: 24px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.dc-safety-banner svg { flex-shrink: 0; margin-top: 2px; }
.dc-safety-title { font-size: 0.875rem; font-weight: 700; color: var(--dc-warn); margin-bottom: 4px; }
.dc-safety-text { font-size: 0.8rem; color: #991b1b; line-height: 1.5; }

/* Page header */
.dc-page-header { margin-bottom: 32px; }
.dc-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--dc-accent-soft); color: var(--dc-accent);
  padding: 4px 12px; border-radius: 100px;
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 12px;
}
.dc-page-title { font-size: 1.75rem; font-weight: 800; color: var(--dc-ink); margin-bottom: 8px; letter-spacing: -0.02em; }
.dc-page-subtitle { color: var(--dc-muted); font-size: 0.95rem; max-width: 600px; }

/* Two column layout */
.dc-two-column {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
}

/* Patient bar */
.dc-patient-bar {
  background: var(--dc-surface); border-radius: var(--dc-radius);
  border: 1px solid var(--dc-line); padding: 20px; margin-bottom: 20px;
  box-shadow: var(--dc-shadow);
}
.dc-patient-title {
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.5px; color: var(--dc-accent); margin-bottom: 12px;
}
.dc-patient-inputs { display: flex; gap: 12px; flex-wrap: wrap; }
.dc-input-group { flex: 1; min-width: 140px; }
.dc-input-group label {
  display: block; font-size: 0.875rem; font-weight: 600;
  color: var(--dc-ink); margin-bottom: 6px;
}
.dc-input, .dc-select {
  width: 100%; padding: 12px 16px; border: 1.5px solid var(--dc-line);
  border-radius: 12px; font-size: 1rem; font-family: inherit;
  color: var(--dc-ink); background: white; outline: none;
}
.dc-input:focus, .dc-select:focus { border-color: var(--dc-accent); }

/* Search */
.dc-search-wrapper { position: relative; margin-bottom: 20px; }
.dc-search-bar {
  display: flex; align-items: center; background: var(--dc-surface);
  border: 1.5px solid var(--dc-line); border-radius: 12px;
  padding: 12px 16px; box-shadow: var(--dc-shadow);
}
.dc-search-input {
  flex: 1; border: none; outline: none; font-size: 1rem;
  font-family: inherit; color: var(--dc-ink); background: transparent;
}
.dc-search-clear {
  background: none; border: none; font-size: 1.25rem;
  color: #999; cursor: pointer; padding: 0 4px;
}
.dc-search-dropdown {
  position: absolute; top: calc(100% + 4px); left: 0; right: 0;
  background: var(--dc-surface); border: 1px solid var(--dc-line);
  border-radius: 12px; box-shadow: var(--dc-shadow-lg);
  z-index: 100; max-height: 400px; overflow: auto;
}
.dc-search-item {
  display: block; width: 100%; padding: 12px 16px;
  border: none; border-bottom: 1px solid #f0f0f0;
  background: var(--dc-surface); text-align: left;
  cursor: pointer; font-family: inherit;
}
.dc-search-item:hover { background: #f8fafc; }
.dc-search-item-name { font-weight: 600; font-size: 0.95rem; color: var(--dc-ink); margin-bottom: 4px; }
.dc-search-item-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.dc-category-tag {
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.5px; padding: 2px 8px; border-radius: 100px;
  background: var(--dc-accent-soft); color: var(--dc-accent);
}
.dc-route-text { font-size: 0.75rem; color: #999; }
.dc-no-species-tag { font-size: 0.7rem; color: var(--dc-warn); font-weight: 500; }
.dc-no-results { padding: 20px; color: #999; font-size: 0.9rem; text-align: center; }

/* Drug card */
.dc-drug-card {
  background: var(--dc-surface); border-radius: var(--dc-radius);
  border: 1px solid var(--dc-line); padding: 28px;
  box-shadow: var(--dc-shadow);
}
.dc-drug-card-header { margin-bottom: 20px; }
.dc-drug-name { font-size: 1.25rem; font-weight: 700; color: var(--dc-ink); margin-bottom: 8px; }
.dc-drug-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.dc-generic-name { font-size: 0.8rem; color: #999; font-style: italic; }

/* Dose range */
.dc-dose-range-box {
  background: #f8fafc; border-radius: var(--dc-radius-sm); padding: 16px; margin-bottom: 16px;
}
.dc-dose-range-label {
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.5px; color: var(--dc-accent); margin-bottom: 4px;
}
.dc-dose-range-value { font-size: 1.25rem; font-weight: 700; color: var(--dc-ink); }
.dc-frequency-text { font-size: 0.85rem; color: var(--dc-muted); margin-top: 4px; }

/* Warnings */
.dc-warnings-box {
  background: var(--dc-warn-bg); border: 1px solid var(--dc-warn-border);
  border-radius: var(--dc-radius-sm); padding: 12px; margin-bottom: 16px;
}
.dc-warning-item { font-size: 0.85rem; color: #991b1b; margin-bottom: 4px; }
.dc-warning-item:last-child { margin-bottom: 0; }

/* Notes */
.dc-notes-box {
  font-size: 0.85rem; color: var(--dc-muted); line-height: 1.6;
  margin-bottom: 20px; padding: 12px; background: #f8fafc;
  border-radius: var(--dc-radius-sm); border-left: 3px solid var(--dc-accent);
}

/* Sections */
.dc-section-title {
  font-size: 0.875rem; font-weight: 700; color: var(--dc-ink);
  margin-bottom: 12px; margin-top: 20px;
}

/* Concentration chips */
.dc-conc-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; margin-bottom: 12px;
}
.dc-conc-chip {
  padding: 12px; border: 1.5px solid var(--dc-line); border-radius: var(--dc-radius-sm);
  background: var(--dc-surface); cursor: pointer; text-align: center;
  font-family: inherit; transition: all 0.2s;
}
.dc-conc-chip:hover { border-color: var(--dc-accent); }
.dc-conc-chip.active { border-color: var(--dc-accent); background: var(--dc-accent-soft); }
.dc-conc-label { font-size: 0.75rem; font-weight: 600; color: var(--dc-ink); margin-bottom: 4px; }
.dc-conc-value { font-size: 0.7rem; color: #999; }

/* Custom conc row */
.dc-custom-conc-row { display: flex; gap: 8px; margin-bottom: 16px; }
.dc-hint { font-size: 0.75rem; color: #999; margin-bottom: 16px; }

/* Calculate button */
.dc-calc-btn {
  width: 100%; padding: 14px; background: var(--dc-ink); color: white;
  border: none; border-radius: 12px; font-size: 1rem; font-weight: 700;
  font-family: inherit; cursor: pointer; display: flex;
  align-items: center; justify-content: center; gap: 8px; margin-top: 8px;
}
.dc-calc-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.dc-calc-btn:hover:not(:disabled) { background: #333; }

/* Results */
.dc-results-box {
  margin-top: 20px; padding: 20px; border-radius: var(--dc-radius-sm);
  border: 1px solid var(--dc-line);
  animation: dcFadeIn 0.4s ease;
}
.dc-results-box.warning { background: var(--dc-caution-bg); border-color: var(--dc-caution-border); }
.dc-results-box.danger { background: var(--dc-warn-bg); border-color: var(--dc-warn-border); }
.dc-results-box.success { background: var(--dc-success-bg); border-color: var(--dc-success-border); }

@keyframes dcFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.dc-result-main { margin-bottom: 16px; }
.dc-result-value { font-size: 2rem; font-weight: 800; color: var(--dc-ink); }
.dc-result-label { font-size: 0.875rem; color: var(--dc-muted); }
.dc-result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; }
.dc-result-item { background: var(--dc-surface); border-radius: var(--dc-radius-sm); padding: 12px; border: 1px solid var(--dc-line); }
.dc-result-item-value { font-size: 1rem; font-weight: 700; color: var(--dc-ink); }
.dc-result-item-label { font-size: 0.7rem; color: #999; text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }

/* Math box */
.dc-math-box { background: var(--dc-accent-soft); border-radius: var(--dc-radius-sm); padding: 16px; margin-bottom: 16px; }
.dc-math-title { font-size: 0.75rem; font-weight: 700; color: var(--dc-accent); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; }
.dc-math-step { font-size: 0.85rem; color: var(--dc-muted); line-height: 1.7; padding-left: 16px; position: relative; margin-bottom: 4px; }
.dc-math-step::before { content: '•'; position: absolute; left: 4px; color: var(--dc-accent); }

/* Add to protocol */
.dc-add-protocol-btn {
  width: 100%; padding: 12px; background: var(--dc-accent); color: white;
  border: none; border-radius: var(--dc-radius-sm); font-size: 0.9rem;
  font-weight: 700; font-family: inherit; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.dc-add-protocol-btn:hover { background: #7a6548; }

/* No data box */
.dc-no-data-box {
  background: #f8fafc; border-radius: var(--dc-radius); padding: 28px;
  text-align: center; border: 1px solid var(--dc-line);
}
.dc-no-data-title { font-size: 1.1rem; font-weight: 700; color: var(--dc-ink); margin-bottom: 8px; }
.dc-no-data-text { font-size: 0.9rem; color: var(--dc-muted); }

/* Protocol sidebar */
.dc-protocol-card {
  background: var(--dc-surface); border-radius: var(--dc-radius);
  border: 1px solid var(--dc-line); padding: 24px;
  box-shadow: var(--dc-shadow); position: sticky; top: 24px;
}
.dc-protocol-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid #f0f0f0;
}
.dc-protocol-title { font-size: 1.1rem; font-weight: 700; color: var(--dc-ink); margin: 0; display: flex; align-items: center; gap: 8px; }
.dc-protocol-count { background: var(--dc-accent); color: white; font-size: 0.75rem; font-weight: 700; padding: 2px 8px; border-radius: 100px; }
.dc-clear-protocol-btn { background: none; border: none; color: #999; font-size: 0.8rem; cursor: pointer; font-family: inherit; }
.dc-clear-protocol-btn:hover { color: var(--dc-warn); }

.dc-empty-protocol { text-align: center; padding: 32px 16px; color: #ccc; }
.dc-empty-protocol-text { font-size: 0.9rem; font-weight: 600; color: #999; margin-top: 12px; }
.dc-empty-protocol-sub { font-size: 0.8rem; color: #bbb; margin-top: 4px; }

.dc-protocol-list { max-height: 500px; overflow: auto; }
.dc-protocol-item { padding: 12px 0; border-bottom: 1px solid #f0f0f0; }
.dc-protocol-item-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 8px; }
.dc-protocol-drug-name { font-weight: 700; font-size: 0.9rem; color: var(--dc-ink); }
.dc-protocol-drug-meta { font-size: 0.75rem; color: #999; margin-top: 2px; }
.dc-remove-btn { background: none; border: none; color: #ccc; font-size: 1.25rem; cursor: pointer; padding: 0 4px; line-height: 1; }
.dc-remove-btn:hover { color: var(--dc-warn); }
.dc-protocol-dose-row { display: flex; gap: 12px; align-items: baseline; }
.dc-protocol-dose { font-size: 1.1rem; font-weight: 800; color: var(--dc-accent); }
.dc-protocol-volume { font-size: 0.85rem; color: var(--dc-muted); }
.dc-protocol-freq { font-size: 0.8rem; color: #999; margin-top: 4px; }
.dc-protocol-warnings { margin-top: 8px; }
.dc-protocol-warning { font-size: 0.75rem; color: var(--dc-warn); margin-bottom: 2px; }

.dc-protocol-actions { margin-top: 16px; padding-top: 16px; border-top: 1px solid #f0f0f0; }
.dc-print-btn {
  width: 100%; padding: 12px; background: var(--dc-ink); color: white;
  border: none; border-radius: var(--dc-radius-sm); font-size: 0.9rem;
  font-weight: 700; font-family: inherit; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.dc-print-btn:hover { background: #333; }

/* References card */
.dc-references-card {
  background: var(--dc-surface); border-radius: var(--dc-radius);
  border: 1px solid var(--dc-line); padding: 20px; margin-top: 20px;
}
.dc-references-title { font-size: 0.875rem; font-weight: 700; color: var(--dc-ink); margin-bottom: 12px; }
.dc-reference-item { font-size: 0.8rem; color: #999; margin-bottom: 6px; }

/* Responsive */
@media (max-width: 900px) {
  .dc-two-column { grid-template-columns: 1fr; }
  .dc-protocol-card { position: static; }
}
@media (max-width: 600px) {
  .dc-result-grid { grid-template-columns: 1fr; }
  .dc-conc-grid { grid-template-columns: repeat(2, 1fr); }
  .dc-patient-inputs { flex-direction: column; }
}