/* ═══════════════════════════════════════════════════════════════════════════
   Everyday Materials — Design System
   Theme-aware CSS with semantic variables, dark mode, and micro-interactions
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Design Tokens (Light Theme — Default) ─── */

:root {
  /* Typography stacks */
  --serif: 'Playfair Display', Georgia, serif;
  --sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;

  /* Core surfaces */
  --bg: #f8f7f4;
  --bg-elevated: #ffffff;
  --bg-glass: rgba(248, 247, 244, 0.85);

  /* Text hierarchy */
  --text-primary: #1a1a1d;
  --text-secondary: #5c5c6b;
  --text-tertiary: #8b8b9a;

  /* Borders */
  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-default: rgba(0, 0, 0, 0.12);

  /* Brand accent (deep indigo) */
  --accent: #5b5bd6;
  --accent-hover: #4e4ec8;
  --accent-subtle: #eef0ff;
  --accent-shadow: rgba(91, 91, 214, 0.2);

  /* Safety: Safe */
  --safe-bg: #ecfdf5;
  --safe-text: #166534;
  --safe-border: #bbf7d0;
  --safe-badge: #22c55e;

  /* Safety: Caution */
  --caution-bg: #fffbeb;
  --caution-text: #854d0e;
  --caution-border: #fde047;
  --caution-badge: #eab308;

  /* Safety: Avoid */
  --avoid-bg: #fef2f2;
  --avoid-text: #991b1b;
  --avoid-border: #fecaca;
  --avoid-badge: #ef4444;

  /* Callout palette */
  --callout-warning-bg: #fffbeb;
  --callout-warning-border: #d97706;
  --callout-warning-text: #b45309;
  --callout-safe-bg: #f0fdf4;
  --callout-safe-border: #15803d;
  --callout-safe-text: #15803d;
  --callout-danger-bg: #fef2f2;
  --callout-danger-border: #b91c1c;
  --callout-danger-text: #b91c1c;
  --callout-info-bg: #eff6ff;
  --callout-info-border: #3b82f6;
  --callout-info-text: #1d4ed8;

  /* Elevation */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);

  /* Geometry */
  --radius-soft: 20px;
  --radius-pill: 100px;
  --spring: cubic-bezier(0.175, 0.885, 0.32, 1.15);
}

/* ─── Dark Theme ─── */

[data-theme="dark"] {
  --bg: #111113;
  --bg-elevated: #1c1c1f;
  --bg-glass: rgba(17, 17, 19, 0.85);

  --text-primary: #ededef;
  --text-secondary: #a0a0ab;
  --text-tertiary: #6e6e7a;

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-default: rgba(255, 255, 255, 0.13);

  --accent: #7c7cef;
  --accent-hover: #9090f5;
  --accent-subtle: rgba(124, 124, 239, 0.14);
  --accent-shadow: rgba(124, 124, 239, 0.25);

  --safe-bg: rgba(34, 197, 94, 0.1);
  --safe-text: #4ade80;
  --safe-border: rgba(34, 197, 94, 0.28);

  --caution-bg: rgba(234, 179, 8, 0.1);
  --caution-text: #fbbf24;
  --caution-border: rgba(234, 179, 8, 0.28);

  --avoid-bg: rgba(239, 68, 68, 0.1);
  --avoid-text: #f87171;
  --avoid-border: rgba(239, 68, 68, 0.28);

  --callout-warning-bg: rgba(217, 119, 6, 0.1);
  --callout-warning-text: #fbbf24;
  --callout-safe-bg: rgba(21, 128, 61, 0.1);
  --callout-safe-text: #4ade80;
  --callout-danger-bg: rgba(185, 28, 28, 0.1);
  --callout-danger-text: #f87171;
  --callout-info-bg: rgba(59, 130, 246, 0.1);
  --callout-info-text: #60a5fa;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
}

/* ─── Reset ─── */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Ensure [hidden] always wins over component display values */
[hidden] {
  display: none !important;
}

/* ─── Base ─── */

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  padding-bottom: 5rem;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  text-decoration: none;
}

/* ─── Global Focus Ring (Accessibility) ─── */

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ─── Skip to Content ─── */

.skip-link {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.skip-link:focus {
  position: static;
  display: block;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  white-space: normal;
  max-width: 680px;
  margin: 0.75rem auto 0;
  padding: 0.4rem 0;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  outline: none;
}

/* ─── Sticky Header ─── */

header {
  position: sticky;
  top: 0;
  z-index: 100;
  max-width: 680px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: var(--bg);
  transition: background-color 0.25s ease, box-shadow 0.25s ease;
}

header.scrolled {
  background-color: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border-subtle);
}

.brand {
  font-family: var(--serif);
  font-weight: 800;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  transition: color 0.15s ease;
  flex-shrink: 0;
}

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

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

/* ─── Site Navigation ─── */

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}

.site-nav-link {
  font-family: var(--sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.4rem 0.625rem;
  border-radius: 0.5rem;
  transition: color 0.15s ease, background-color 0.15s ease;
  background: none;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.site-nav-link:hover {
  color: var(--text-primary);
  background-color: var(--border-subtle);
}

/* Articles dropdown */

.site-nav-dropdown {
  position: relative;
}

.site-nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.nav-chevron {
  transition: transform 0.2s ease;
}

.site-nav-dropdown.is-open .nav-chevron {
  transform: rotate(180deg);
}

.site-nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0.375rem);
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-lg);
  padding: 0.375rem;
  z-index: 200;
}

.site-nav-dropdown.is-open .site-nav-dropdown-menu {
  display: block;
}

.site-nav-dropdown-menu a {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 0.5rem;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.site-nav-dropdown-menu a:hover {
  color: var(--text-primary);
  background-color: var(--border-subtle);
}

/* Hamburger toggle (hidden on desktop) */

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: none;
  border: 1px solid var(--border-default);
  border-radius: 0.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
  flex-shrink: 0;
  margin-left: auto;
}

.nav-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-default);
  background-color: var(--border-subtle);
}

.nav-toggle[aria-expanded="true"] {
  color: var(--accent);
  border-color: var(--accent);
}

/* ─── Theme Toggle ─── */

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-default);
  border-radius: 50%;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease,
              color 0.2s ease, transform 0.3s ease;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--accent-subtle);
  border-color: var(--accent);
  color: var(--accent);
  transform: rotate(20deg);
}

/* Sun shown in dark mode (to switch to light); moon in light (to switch to dark) */
.icon-sun  { display: none; }
.icon-moon { display: block; }

[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* Theme toggle inside hero (homepage, no header) */
.theme-toggle--hero {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.85);
}

.theme-toggle--hero:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

/* ─── Article Layout ─── */

main {
  max-width: 680px;
  margin: 0 auto 3.75rem;
  padding: 0 1.25rem;
}

h1 {
  font-family: var(--serif);
  font-weight: 800;
  font-size: 2.625rem;
  line-height: 1.08;
  letter-spacing: -1.5px;
  margin-top: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

h2 {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 700;
  margin: 3rem 0 1.5rem;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

p {
  font-size: 1.09375rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.title-dek,
.dek {
  font-size: 1.25rem;
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.5;
  margin-bottom: 2.5rem;
}

.bfr-tag {
  background: #fef08a;
  padding: 0.125rem 0.375rem;
  border-radius: 0.375rem;
  color: #854d0e;
  font-weight: 600;
  font-size: 0.9375rem;
}

[data-theme="dark"] .bfr-tag {
  background: rgba(254, 240, 138, 0.2);
  color: #fbbf24;
}

/* ─── Homepage Hero ─── */

.hero {
  background: linear-gradient(160deg, #18181b 0%, #27272a 100%);
  color: white;
  text-align: center;
  padding: 4rem 2rem 3.5rem;
  margin-bottom: 3rem;
  position: relative;
}

.hero h1 {
  color: white;
  margin-top: 0;
}

.hero-tagline {
  margin-top: 0.75rem;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.75);
}

.hero-subtitle {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.9);
}

.site-mark {
  width: 48px;
  height: 48px;
  margin: 0 auto 1.5rem;
}

/* ─── Site Footer ─── */

.site-footer {
  max-width: 680px;
  margin: 4rem auto 0;
  padding: 2rem 1.25rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer nav {
  display: flex;
  gap: 1.5rem;
}

.site-footer nav a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-footer nav a:hover {
  color: var(--text-primary);
}

.site-footer .copyright {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ─── Editor's Note ─── */

.editors-note {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 2rem;
}

.editors-note strong {
  color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════════════════════
   Verdict Cards — Severity Variants
   ═══════════════════════════════════════════════════════════════════════════ */

.verdict-card {
  border-radius: var(--radius-soft);
  padding: 2rem;
  margin-bottom: 3rem;
  position: relative;
}

.verdict-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.verdict-bubble {
  color: white;
  font-weight: 800;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-pill);
  display: inline-block;
}

.verdict-title {
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 700;
}

.verdict-text {
  font-size: 1rem;
  font-weight: 500;
  margin: 0;
  line-height: 1.65;
}

/* Avoid (Red) */
.verdict-avoid {
  background: var(--avoid-bg);
  border: 2px solid var(--avoid-border);
  box-shadow: 0 12px 24px rgba(239, 68, 68, 0.08);
}
.verdict-avoid .verdict-bubble { background: var(--avoid-badge); }
.verdict-avoid .verdict-title  { color: var(--avoid-text); }
.verdict-avoid .verdict-text   { color: var(--avoid-text); opacity: 0.9; }

/* Caution (Amber) */
.verdict-caution {
  background: var(--caution-bg);
  border: 2px solid var(--caution-border);
  box-shadow: 0 12px 24px rgba(234, 179, 8, 0.08);
}
.verdict-caution .verdict-bubble { background: var(--caution-badge); }
.verdict-caution .verdict-title  { color: var(--caution-text); }
.verdict-caution .verdict-text   { color: var(--caution-text); opacity: 0.9; }

/* Safe (Green) */
.verdict-safe {
  background: var(--safe-bg);
  border: 2px solid var(--safe-border);
  box-shadow: 0 12px 24px rgba(34, 197, 94, 0.08);
}
.verdict-safe .verdict-bubble { background: var(--safe-badge); }
.verdict-safe .verdict-title  { color: var(--safe-text); }
.verdict-safe .verdict-text   { color: var(--safe-text); opacity: 0.9; }

/* Neutral */
.verdict-neutral {
  background: var(--bg-elevated);
  border: 2px solid var(--border-default);
  box-shadow: var(--shadow-md);
}
.verdict-neutral .verdict-bubble { background: var(--text-tertiary); }
.verdict-neutral .verdict-title  { color: var(--text-secondary); }
.verdict-neutral .verdict-text   { color: var(--text-secondary); }

/* ─── Fact Cards ─── */

.fact-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-soft);
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.fact-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-default);
}

.fact-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.fact-label {
  font-family: var(--serif);
  display: block;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.fact-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ─── Key Facts List ─── */

.key-facts {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.key-facts li {
  font-size: 0.9375rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.key-facts li span.fact-label {
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
  min-width: 7rem;
  color: var(--text-primary);
  flex-shrink: 0;
}

/* ─── Inline Callouts ─── */

.callout {
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.callout strong {
  display: block;
  margin-bottom: 0.25rem;
}

.callout-warning {
  background: var(--callout-warning-bg);
  border-left: 4px solid var(--callout-warning-border);
}
.callout-warning strong { color: var(--callout-warning-text); }

.callout-safe {
  background: var(--callout-safe-bg);
  border-left: 4px solid var(--callout-safe-border);
}
.callout-safe strong { color: var(--callout-safe-text); }

.callout-danger {
  background: var(--callout-danger-bg);
  border-left: 4px solid var(--callout-danger-border);
}
.callout-danger strong { color: var(--callout-danger-text); }

.callout-info {
  background: var(--callout-info-bg);
  border-left: 4px solid var(--callout-info-border);
}
.callout-info strong { color: var(--callout-info-text); }

/* ─── Table of Contents ─── */

.toc {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: 0.75rem;
  padding: 1.25rem;
  margin-bottom: 2rem;
}

.toc .toc-label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 0.75rem;
}

.toc ol {
  list-style: decimal;
  padding-left: 1.25rem;
  display: block;
  margin: 0;
}

.toc ol li {
  padding: 0.25rem 0;
}

.toc ol li a {
  font-size: 0.875rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  display: inline;
  background: none;
  padding: 0;
  border: none;
  box-shadow: none;
  transition: color 0.15s ease;
}

.toc ol li a:hover {
  text-decoration: underline;
  color: var(--accent-hover);
  transform: none;
  box-shadow: none;
}

/* ─── Sources ─── */

.sources {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-default);
}

.sources h2 {
  font-size: 1.125rem;
  margin-top: 0;
}

.sources ol {
  list-style: decimal;
  padding-left: 1.25rem;
  display: block;
}

.sources ol li {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  line-height: 1.5;
  padding: 0.25rem 0;
}

.sources ol li a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

.sources ol li a:hover {
  text-decoration: underline;
  color: var(--accent-hover);
}

/* ─── Related Articles ─── */

.related-articles {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-default);
}

.related-articles h2 {
  font-size: 1.125rem;
  margin-top: 0;
}

.related-articles ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.related-articles ul li a {
  font-size: 0.9375rem;
  padding: 0.75rem 1rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   Alternative Cards & Product Recommendations
   ═══════════════════════════════════════════════════════════════════════════ */

.alt-card {
  background-color: var(--bg-elevated);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-soft);
  padding: 1.75rem;
  margin-bottom: 1.25rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.alt-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 24px var(--accent-shadow);
  transform: translateY(-2px);
}

.alt-type {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  background: var(--accent-subtle);
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-pill);
  display: inline-block;
  margin-bottom: 1rem;
}

.alt-type--spaced {
  margin-bottom: 2rem;
}

.alt-name {
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.2;
  color: var(--text-primary);
}

.alt-desc {
  font-size: 0.9375rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.alt-pros-cons {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  background: var(--bg);
  padding: 1rem 1.25rem;
  border-radius: 1rem;
}

.alt-pro,
.alt-con {
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  color: var(--text-secondary);
}

.alt-pro::before {
  content: '\2713';
  color: var(--safe-badge);
  font-weight: 800;
  font-size: 1rem;
}

.alt-con::before {
  content: '\2715';
  color: var(--avoid-badge);
  font-weight: 800;
  font-size: 1rem;
}

/* ─── CTA Button ─── */

a.btn {
  display: inline-block;
  width: 100%;
  background-color: var(--accent);
  color: white;
  text-align: center;
  padding: 1rem;
  border-radius: var(--radius-pill);
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 12px var(--accent-shadow);
}

a.btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px var(--accent-shadow);
}

a.btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px var(--accent-shadow);
}

/* ═══════════════════════════════════════════════════════════════════════════
   Connection Hub & Grid — Cross-Linking
   ═══════════════════════════════════════════════════════════════════════════ */

.connection-hub {
  margin-top: 4rem;
  background: var(--bg);
  padding: 3rem 2rem;
  border-radius: var(--radius-soft);
  border: 1px solid var(--border-subtle);
  text-align: center;
}

.connection-hub--transparent {
  margin-top: 0;
  background: transparent;
  border-color: transparent;
}

.connection-hub h2 {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  margin-top: 0;
  border: none;
}

.connection-hub h3 {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.connection-hub p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 480px;
  margin-inline: auto;
}

.connection-hub-subtitle {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.connection-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  text-align: left;
}

@media (min-width: 500px) {
  .connection-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.connect-link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  background: var(--bg-elevated);
  padding: 1.25rem 1.5rem;
  border-radius: 1rem;
  border: 2px solid var(--border-subtle);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.connect-link:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--accent-shadow);
}

/* Safety status border-left coloring on index cards */
.connect-link[data-status="verdict-safe"]    { border-left: 4px solid var(--safe-badge); }
.connect-link[data-status="verdict-caution"] { border-left: 4px solid var(--caution-badge); }
.connect-link[data-status="verdict-avoid"]   { border-left: 4px solid var(--avoid-badge); }

.connect-type {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.connect-title {
  font-family: var(--serif);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  line-height: 1.3;
}

.connect-link:hover .connect-title {
  color: var(--accent);
}

/* Category card images (homepage) */

.connect-link--has-img {
  padding: 0;
  overflow: hidden;
}

.connect-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 400 / 250;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.connect-link--has-img:hover .connect-img {
  transform: scale(1.04);
}

.connect-link--has-img .connect-body {
  padding: 1rem 1.25rem 1.25rem;
}

/* ─── Status Badges (Category Index Cards) ─── */

.status-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.5625rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.15em 0.55em;
  border-radius: var(--radius-pill);
  line-height: 1.6;
  flex-shrink: 0;
}

.status-badge--safe    { background: var(--safe-badge);    color: white; }
.status-badge--caution { background: var(--caution-badge); color: white; }
.status-badge--avoid   { background: var(--avoid-badge);   color: white; }

/* ─── Search / Filter Bar ─── */

.search-bar {
  position: relative;
  margin-bottom: 1.5rem;
  max-width: 440px;
  margin-left: auto;
  margin-right: auto;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 0.75rem 2.75rem;
  border: 2px solid var(--border-default);
  border-radius: var(--radius-pill);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-family: var(--sans);
  font-size: 0.9375rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
  box-shadow: var(--shadow-sm);
  -webkit-appearance: none;
  appearance: none;
}

/* Hide native WebKit clear button (we provide our own) */
.search-input::-webkit-search-cancel-button {
  -webkit-appearance: none;
  display: none;
}

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

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

.search-clear {
  position: absolute;
  right: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  font-size: 1.125rem;
  line-height: 1;
  padding: 0.25rem;
  border-radius: 50%;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.search-clear:hover {
  color: var(--text-primary);
  background: var(--border-subtle);
}

.search-empty {
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.9375rem;
  padding: 2rem 0;
  margin: 0;
}

/* ─── Back to Top Button ─── */

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 2px solid var(--border-default);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease,
              background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  z-index: 200;
  pointer-events: none;
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  box-shadow: 0 8px 20px var(--accent-shadow);
}

/* ═══════════════════════════════════════════════════════════════════════════
   Prose Pages (About, Privacy, Methodology)
   ═══════════════════════════════════════════════════════════════════════════ */

.prose {
  max-width: 65ch;
}

.prose h1 {
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.prose h2 {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.prose p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.prose a {
  color: var(--accent);
  transition: color 0.15s ease;
}

.prose a:hover {
  text-decoration: underline;
  color: var(--accent-hover);
}

.prose ul {
  display: block;
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.prose ul li {
  padding: 0.25rem 0;
  color: var(--text-secondary);
}

.prose ul li a {
  display: inline;
  background: none;
  padding: 0;
  border: none;
  box-shadow: none;
  font-weight: normal;
}

/* ─── Breadcrumb Navigation ─── */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin-bottom: 0.25rem;
}

.breadcrumb a {
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.breadcrumb-sep {
  color: var(--border-default);
  font-size: 0.6875rem;
  user-select: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Mobile Navigation (≤768px) ─── */

@media (max-width: 768px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0.125rem;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-default);
    box-shadow: var(--shadow-lg);
    padding: 0.75rem 1.25rem 1rem;
    z-index: 200;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav-link {
    font-size: 0.9375rem;
    padding: 0.625rem 0.75rem;
    border-radius: 0.5rem;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav-dropdown-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: 0 0 0 0.75rem;
    min-width: 0;
    border-left: 2px solid var(--border-default);
    margin-left: 0.75rem;
    background: transparent;
  }

  .site-nav-dropdown-menu a {
    padding: 0.5rem 0.75rem;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 3rem 1rem 2.5rem;
  }

  .hero h1 {
    font-size: 1.875rem;
  }

  header {
    padding: 0.625rem 1rem;
  }

  h1 {
    font-size: 1.875rem;
    letter-spacing: -1px;
  }

  h2 {
    font-size: 1.375rem;
  }

  main {
    padding: 0 1rem;
  }

  .alt-card {
    padding: 1.25rem;
  }

  .key-facts li {
    flex-direction: column;
    gap: 0.125rem;
  }

  .key-facts li span.fact-label {
    min-width: auto;
  }

  .site-footer {
    padding: 1.5rem 1rem;
  }

  .site-footer nav {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .back-to-top {
    bottom: 1.25rem;
    right: 1rem;
  }

  .search-bar {
    max-width: 100%;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   Print
   ═══════════════════════════════════════════════════════════════════════════ */

@media print {
  /* Strip chrome */
  header, .site-footer, .back-to-top, .theme-toggle, .nav-toggle,
  .search-bar, .connection-hub, .editors-note, a.btn {
    display: none !important;
  }

  body {
    background: white !important;
    color: #1a1a1d !important;
    padding: 0;
    line-height: 1.5;
  }

  main {
    max-width: 100%;
    padding: 0;
    margin: 0;
  }

  h1 { font-size: 1.75rem; margin-top: 0; }
  h2 { font-size: 1.25rem; margin-top: 2rem; }
  p, .fact-desc, .alt-desc { color: #333 !important; }

  a { color: #333; text-decoration: underline; }

  /* Prevent page-break inside content blocks */
  .verdict-card, .alt-card, .fact-card, .callout, .toc {
    break-inside: avoid;
    border: 1px solid #ccc !important;
    box-shadow: none !important;
    background: white !important;
  }

  .verdict-card *, .callout * { color: #333 !important; }
  .verdict-bubble { color: white !important; }

  h1, h2 { break-after: avoid; }

  .breadcrumb { display: none !important; }

  /* Show link URLs inline for reference */
  .sources a::after {
    content: " (" attr(href) ")";
    font-size: 0.7rem;
    word-break: break-all;
  }
}