/* ==========================================================================
   RxSaurus — Global Stylesheet
   Dark-mode, medical-grade precision UI
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Dark backgrounds */
  --color-bg-base: #0a0a0f;
  --color-bg-surface: #111118;
  --color-bg-elevated: #1a1a24;
  --color-bg-overlay: #222230;

  /* Border colors */
  --color-border: #2a2a3a;
  --color-border-subtle: #1e1e2e;

  /* Text */
  --color-text-primary: #e8e8f0;
  --color-text-secondary: #9898b0;
  --color-text-tertiary: #606078;

  /* Accent — Teal/Cyan */
  --color-accent: #00c9b1;
  --color-accent-hover: #00e0c6;
  --color-accent-muted: #00c9b120;

  /* Equivalency badge colors */
  --color-badge-exact: #22c55e;
  --color-badge-exact-bg: #14532d20;
  --color-badge-ingredient: #3b82f6;
  --color-badge-ingredient-bg: #1d3a6e20;
  --color-badge-therapeutic: #a855f7;
  --color-badge-therapeutic-bg: #4a1d9620;
  --color-badge-community: #f59e0b;
  --color-badge-community-bg: #78350f20;

  /* Status colors */
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Brand */
  --color-brand-gold: #f59e0b;
  --color-brand-gold-hover: #fbbf24;

  /* Fonts */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(0, 201, 177, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Container */
  --container-max: 1200px;
  --container-narrow: 800px;
}

/* --------------------------------------------------------------------------
   2. Reset / Normalize
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-base);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-hover);
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* Screen-reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   3. Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  gap: var(--space-4);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.logo img,
.logo svg {
  height: 32px;
  width: auto;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-elevated);
}

.nav-link--active,
.nav-link[aria-current="page"] {
  color: var(--color-accent);
  background: var(--color-accent-muted);
}

/* --------------------------------------------------------------------------
   4. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border-subtle);
  padding: var(--space-8) var(--space-4);
  margin-top: auto;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.footer-disclaimer {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--color-text-tertiary);
  padding: var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
}

.footer-disclaimer strong {
  color: var(--color-warning);
  font-weight: 600;
}

.footer-attribution {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  text-align: center;
}

.footer-attribution a {
  color: var(--color-text-secondary);
}

.footer-attribution a:hover {
  color: var(--color-accent);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

.footer-links a {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-legal {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  text-align: center;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   5. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-16) var(--space-4);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(0, 201, 177, 0.06) 0%, transparent 60%),
    var(--color-bg-base);
}

.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin-inline: auto;
  gap: var(--space-8);
}

.hero-content {
  max-width: 640px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.hero-highlight {
  color: var(--color-accent);
  position: relative;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-8);
  max-width: 520px;
}

.hero-mascot {
  flex-shrink: 0;
  width: 240px;
  height: 240px;
  display: none;
}

.hero-hint {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-3);
}

.hero-hint kbd {
  display: inline-block;
  padding: 0.1em 0.4em;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   6. Search Bar
   -------------------------------------------------------------------------- */
.search-bar {
  position: relative;
  width: 100%;
  max-width: 560px;
}

.search-bar--large {
  max-width: 640px;
}

.search-bar--large .search-input {
  padding: var(--space-4) var(--space-5);
  font-size: 1.125rem;
}

.search-form {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  padding-right: 3rem;
  font-size: 1rem;
  color: var(--color-text-primary);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted), var(--shadow-glow);
}

.search-button {
  position: absolute;
  right: var(--space-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-text-tertiary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.search-button:hover {
  color: var(--color-accent);
  background: var(--color-accent-muted);
}

.search-results {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 400px;
  overflow-y: auto;
  display: none;
}

.search-results.is-open {
  display: block;
}

.search-results-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: background var(--transition-fast);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border-subtle);
}

.search-results-item:last-child {
  border-bottom: none;
}

.search-results-item:hover,
.search-results-item.is-active {
  background: var(--color-bg-overlay);
  color: var(--color-accent);
}

.search-results-item-name {
  font-weight: 600;
}

.search-results-item-generic {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.search-results-empty {
  padding: var(--space-4);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
}

/* --------------------------------------------------------------------------
   7. Badge Styles
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.25em 0.75em;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-full);
  white-space: nowrap;
  vertical-align: middle;
}

.badge-sm {
  padding: 0.15em 0.5em;
  font-size: 0.6875rem;
}

.badge-exact {
  color: var(--color-badge-exact);
  background: var(--color-badge-exact-bg);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.badge-ingredient {
  color: var(--color-badge-ingredient);
  background: var(--color-badge-ingredient-bg);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-therapeutic {
  color: var(--color-badge-therapeutic);
  background: var(--color-badge-therapeutic-bg);
  border: 1px solid rgba(168, 85, 247, 0.2);
}

.badge-community {
  color: var(--color-badge-community);
  background: var(--color-badge-community-bg);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

/* --------------------------------------------------------------------------
   8. Chip Styles
   -------------------------------------------------------------------------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.2em 0.6em;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--radius-full);
  white-space: nowrap;
  background: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.chip-class {
  background: rgba(99, 102, 241, 0.1);
  color: #818cf8;
  border-color: rgba(99, 102, 241, 0.2);
}

.chip-form {
  background: rgba(14, 165, 233, 0.1);
  color: #38bdf8;
  border-color: rgba(14, 165, 233, 0.2);
}

.chip-route {
  background: rgba(168, 85, 247, 0.1);
  color: #c084fc;
  border-color: rgba(168, 85, 247, 0.2);
}

.chip-rx {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.2);
}

.chip-otc {
  background: rgba(34, 197, 94, 0.1);
  color: #4ade80;
  border-color: rgba(34, 197, 94, 0.2);
}

.chip-generic {
  background: rgba(156, 163, 175, 0.1);
  color: #9ca3af;
  border-color: rgba(156, 163, 175, 0.2);
}

.chip-schedule {
  background: rgba(245, 158, 11, 0.1);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.2);
}

/* --------------------------------------------------------------------------
   9. Drug Page
   -------------------------------------------------------------------------- */
.drug-hero {
  padding: var(--space-8) var(--space-4);
  background:
    radial-gradient(ellipse at 30% 0%, rgba(0, 201, 177, 0.05) 0%, transparent 50%),
    var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border-subtle);
}

.drug-hero .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.drug-title {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-text-primary);
  line-height: 1.15;
}

.drug-brand-names {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.drug-brand-names strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.drug-meta-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.drug-indications-summary {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-top: var(--space-2);
  max-width: 720px;
}

/* --------------------------------------------------------------------------
   10. Equivalents Section
   -------------------------------------------------------------------------- */
.equivalents-section {
  padding: var(--space-8) 0;
}

.equivalents-section h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-6);
}

.equivalents-group {
  margin-bottom: var(--space-8);
}

.equivalents-group:last-child {
  margin-bottom: 0;
}

.equivalents-group-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.equivalents-group-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

.equivalents-group-desc {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.equivalents-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.equivalent-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.equivalent-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.equivalent-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.equivalent-link:hover .equivalent-name {
  color: var(--color-accent);
}

.equivalent-name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.te-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  padding: 0.15em 0.5em;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-sm);
}

.class-name {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.no-equivalents {
  padding: var(--space-8);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 0.9375rem;
  background: var(--color-bg-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
}

/* --------------------------------------------------------------------------
   11. Coverage Section
   -------------------------------------------------------------------------- */
.coverage-section {
  padding: var(--space-8) 0;
}

.coverage-section h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-6);
}

.coverage-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  -webkit-overflow-scrolling: touch;
}

.coverage-table {
  width: 100%;
  font-size: 0.875rem;
  border-collapse: collapse;
}

.coverage-table thead {
  background: var(--color-bg-elevated);
}

.coverage-table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.coverage-table td {
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-subtle);
  vertical-align: middle;
}

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

.coverage-table tbody tr:hover {
  background: var(--color-bg-elevated);
}

.ugc-disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-3);
  padding: var(--space-3);
  background: var(--color-bg-elevated);
  border-left: 3px solid var(--color-warning);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.no-coverage {
  padding: var(--space-6);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 0.875rem;
  background: var(--color-bg-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
}

/* --------------------------------------------------------------------------
   12. Accordion
   -------------------------------------------------------------------------- */
.accordion-item {
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  overflow: hidden;
  background: var(--color-bg-surface);
}

.accordion-item:last-child {
  margin-bottom: 0;
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4) var(--space-5);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: background var(--transition-fast);
}

.accordion-trigger:hover {
  background: var(--color-bg-elevated);
}

.accordion-trigger::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-text-tertiary);
  border-bottom: 2px solid var(--color-text-tertiary);
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
  margin-left: var(--space-3);
}

.accordion-trigger[aria-expanded="true"]::after {
  transform: rotate(-135deg);
}

.accordion-content {
  padding: 0 var(--space-5) var(--space-5);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  display: none;
}

.accordion-content.is-open {
  display: block;
}

.accordion-item--warning {
  border-color: rgba(245, 158, 11, 0.3);
}

.accordion-item--warning .accordion-trigger {
  color: var(--color-warning);
}

/* --------------------------------------------------------------------------
   13. Features Grid
   -------------------------------------------------------------------------- */
.features {
  padding: var(--space-16) var(--space-4);
}

.features h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: var(--space-10);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: var(--container-max);
  margin-inline: auto;
}

.feature-card {
  padding: var(--space-6);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-card h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-2);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.feature-card .feature-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-3);
}

/* --------------------------------------------------------------------------
   14. CTA Section
   -------------------------------------------------------------------------- */
.cta-section {
  padding: var(--space-16) var(--space-4);
}

.cta-card {
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding: var(--space-10) var(--space-8);
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(0, 201, 177, 0.08) 0%, transparent 60%),
    var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
}

.cta-card h2 {
  font-size: 1.75rem;
  margin-bottom: var(--space-4);
}

.cta-card p {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  max-width: 480px;
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   15. Legal Pages
   -------------------------------------------------------------------------- */
.legal-page {
  padding: var(--space-12) var(--space-4);
}

.legal-content {
  max-width: var(--container-narrow);
  margin-inline: auto;
}

.legal-content h1 {
  font-size: 2rem;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
}

.legal-content h2 {
  font-size: 1.375rem;
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
}

.legal-content h3 {
  font-size: 1.125rem;
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.legal-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}

.legal-content ul,
.legal-content ol {
  list-style: disc;
  padding-left: var(--space-6);
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

.legal-content li {
  margin-bottom: var(--space-2);
  line-height: 1.6;
}

.legal-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* --------------------------------------------------------------------------
   16. Breadcrumb
   -------------------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  padding: var(--space-4) 0;
}

.breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb-sep {
  color: var(--color-text-tertiary);
  user-select: none;
}

.breadcrumb span:last-child {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   17. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast),
    box-shadow var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn:active {
  transform: scale(0.98);
}

.btn-accent {
  color: var(--color-bg-base);
  background: var(--color-accent);
  font-weight: 700;
}

.btn-accent:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-glow);
  color: var(--color-bg-base);
}

.btn-outline {
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-tertiary);
  background: var(--color-bg-elevated);
}

/* --------------------------------------------------------------------------
   18. Disclaimers
   -------------------------------------------------------------------------- */
.inline-disclaimer {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  line-height: 1.6;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  margin: var(--space-4) 0;
}

.inline-disclaimer strong {
  color: var(--color-warning);
}

/* ugc-disclaimer is defined in section 11 (coverage) */

/* --------------------------------------------------------------------------
   19. Skeleton / Loading
   -------------------------------------------------------------------------- */
@keyframes skeleton-pulse {
  0% {
    opacity: 0.6;
  }
  50% {
    opacity: 0.3;
  }
  100% {
    opacity: 0.6;
  }
}

.skeleton-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.skeleton {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-md);
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton--text {
  height: 1em;
  width: 80%;
}

.skeleton--title {
  height: 2rem;
  width: 60%;
}

.skeleton--card {
  height: 120px;
  width: 100%;
}

.skeleton--badge {
  height: 1.5em;
  width: 80px;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   20. Responsive
   -------------------------------------------------------------------------- */

/* sm: 640px */
@media (min-width: 640px) {
  .hero-title {
    font-size: 3rem;
  }

  .equivalents-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* md: 768px */
@media (min-width: 768px) {
  .hero {
    padding: var(--space-20) var(--space-4);
  }

  .hero-mascot {
    display: block;
  }

  .hero-title {
    font-size: 3.5rem;
  }

  .drug-title {
    font-size: 2.75rem;
  }

  .container {
    padding-inline: var(--space-6);
  }

  .header-inner {
    padding: var(--space-3) var(--space-6);
  }
}

/* lg: 1024px */
@media (min-width: 1024px) {
  .hero-title {
    font-size: 4rem;
  }

  .equivalents-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .container {
    padding-inline: var(--space-8);
  }

  .header-inner {
    padding: var(--space-3) var(--space-8);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}