/* ============================================================
   零碳蜂癒® Design System — Shared Stylesheet
   HiveCode™ Color System v1.0
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter+Display:wght@400;500;600;700;800;900&family=Noto+Sans+TC:wght@400;500;600;700;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  /* Brand Core */
  --bee-green: #34C759;       /* 待 Tim 最終確認 */
  --deep-forest: #0D1A0E;
  --pure-white: #FFFFFF;

  /* Semantic Dimensions */
  --dim-product:          #E8A020;
  --dim-product-light:    #FDF3E0;
  --dim-product-dark:     #7A5010;
  --dim-quality:          #1A9E8F;
  --dim-quality-light:    #E0F5F3;
  --dim-quality-dark:     #0D5349;
  --dim-story:            #A0673A;
  --dim-story-light:      #F7EDE6;
  --dim-story-dark:       #5C3B20;
  --dim-lifestyle:        #8BA4B0;
  --dim-lifestyle-light:  #F0F4F6;
  --dim-lifestyle-dark:   #3D5A68;
  --dim-education:        #B5D429;
  --dim-education-light:  #F6FAE8;
  --dim-education-dark:   #5D6E14;

  /* Seasonal Line */
  --season-spring:  #F2D4C2;
  --season-summer:  #1A3A1F;
  --season-autumn:  #C4621A;
  --season-winter:  #8FA8B8;

  /* Neutrals */
  --gray-50:  #F8F9FA;
  --gray-100: #F1F3F5;
  --gray-200: #E9ECEF;
  --gray-300: #DEE2E6;
  --gray-400: #CED4DA;
  --gray-500: #ADB5BD;
  --gray-600: #868E96;
  --gray-700: #495057;
  --gray-800: #343A40;
  --gray-900: #212529;

  /* Typography */
  --font-display: 'Inter Display', sans-serif;
  --font-body:    'Noto Sans TC', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* Radius */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-2xl:  24px;
  --radius-pill: 999px;

  /* Shadow */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.10), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg:  0 16px 32px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.08);

  /* Layout */
  --sidebar-width: 260px;
  --content-max: 860px;
  --nav-height: 64px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--pure-white);
  color: var(--gray-900);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: var(--bee-green); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Layout Shell ---------- */
.shell {
  display: flex;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--deep-forest);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  z-index: 100;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }

.sidebar-logo {
  padding: var(--space-6) var(--space-6) var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.sidebar-logo-mark {
  width: 32px; height: 32px;
  background: var(--bee-green);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--deep-forest);
  flex-shrink: 0;
}
.sidebar-logo-name {
  display: flex; flex-direction: column; gap: 0px;
}
.sidebar-logo-zh {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  color: var(--pure-white);
  letter-spacing: 0.02em;
}
.sidebar-logo-en {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sidebar-nav {
  padding: var(--space-4) 0;
  flex: 1;
}
.sidebar-nav-group {
  padding: var(--space-4) var(--space-6) var(--space-2);
}
.sidebar-nav-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}
.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  margin: 2px 0;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  transition: all 150ms ease-out;
  text-decoration: none;
}
.sidebar-nav-item:hover {
  background: rgba(255,255,255,0.07);
  color: rgba(255,255,255,0.9);
  text-decoration: none;
}
.sidebar-nav-item.active {
  background: rgba(52, 199, 89, 0.15);
  color: var(--bee-green);
}
.sidebar-nav-item .nav-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.07);
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255,255,255,0.25);
  line-height: 1.6;
}

/* ---------- Main Content ---------- */
.main {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
}

/* ---------- Page Header ---------- */
.page-header {
  padding: var(--space-20) var(--space-16) var(--space-12);
  border-bottom: 1px solid var(--gray-200);
}
.page-header-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--bee-green);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--gray-900);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}
.page-header-desc {
  font-size: 18px;
  color: var(--gray-600);
  max-width: 600px;
  line-height: 1.7;
}

/* ---------- Content Area ---------- */
.content {
  padding: var(--space-12) var(--space-16);
  max-width: calc(var(--content-max) + var(--space-32));
}

/* ---------- Section ---------- */
.section {
  margin-bottom: var(--space-20);
}
.section-title {
  font-family: var(--font-body);
  font-size: 28px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}
.section-desc {
  font-size: 15px;
  color: var(--gray-500);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}
.section-divider {
  height: 1px;
  background: var(--gray-200);
  margin: var(--space-12) 0;
}

/* ---------- Color Swatch ---------- */
.color-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
}
.color-swatch {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  cursor: pointer;
  transition: transform 150ms ease-out, box-shadow 150ms ease-out;
}
.color-swatch:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.color-swatch-chip {
  height: 100px;
  width: 100%;
}
.color-swatch-info {
  padding: var(--space-3) var(--space-4);
  background: var(--pure-white);
}
.color-swatch-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 2px;
}
.color-swatch-hex {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-500);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.copy-hint {
  font-size: 10px;
  color: var(--gray-400);
  letter-spacing: 0.04em;
  margin-top: 2px;
}
.color-swatch.copied .copy-hint {
  color: var(--bee-green);
}
.color-swatch.copied .copy-hint::before {
  content: '✓ ';
}

/* Color Tier Label */
.tier-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-pill);
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--gray-600);
  margin-bottom: var(--space-5);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.tier-label .tier-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}

/* Dimension color rows */
.dimension-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-6);
  align-items: center;
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--gray-100);
}
.dimension-row:last-child { border-bottom: none; }
.dimension-swatches {
  display: flex; gap: var(--space-2);
}
.dimension-chip {
  width: 60px; height: 52px;
  border-radius: var(--radius-md);
  cursor: pointer;
  position: relative;
  border: 1px solid rgba(0,0,0,0.08);
  transition: transform 120ms ease-out;
}
.dimension-chip:hover { transform: scale(1.05); }
.dimension-chip-label {
  position: absolute;
  bottom: -18px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--gray-500);
  white-space: nowrap;
}
.dimension-info {}
.dimension-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.dimension-desc {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.5;
}
.dimension-usage {
  font-size: 12px;
  color: var(--gray-400);
  margin-top: var(--space-2);
  font-family: var(--font-mono);
}

/* ---------- Typography Specimens ---------- */
.type-scale-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-6);
  align-items: baseline;
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--gray-100);
}
.type-scale-row:last-child { border-bottom: none; }
.type-scale-meta {
  flex-shrink: 0;
}
.type-scale-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-500);
  display: block;
  margin-bottom: 2px;
}
.type-scale-size {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--gray-700);
}
.type-specimen {
  color: var(--gray-900);
}

/* ---------- Component Preview ---------- */
.component-demo {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  margin-bottom: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}
.component-demo.dark {
  background: var(--deep-forest);
  border-color: rgba(255,255,255,0.1);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-2xl);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 200ms ease-out;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--bee-green);
  color: var(--deep-forest);
}
.btn-primary::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 0;
  background: rgba(0,0,0,0.12);
  transition: height 300ms cubic-bezier(0.23, 1, 0.32, 1);
}
.btn-primary:hover::after { height: 100%; }
.btn-secondary {
  background: transparent;
  color: var(--bee-green);
  border: 1.5px solid var(--bee-green);
}
.btn-secondary:hover {
  background: rgba(52, 199, 89, 0.08);
}
.btn-ghost {
  background: transparent;
  color: var(--pure-white);
  border: 1.5px solid rgba(255,255,255,0.4);
}
.btn-ghost:hover {
  border-color: var(--pure-white);
  background: rgba(255,255,255,0.08);
}

/* Tags */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 5px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
}
.tag-product   { background: var(--dim-product-light);   color: var(--dim-product-dark); }
.tag-quality   { background: var(--dim-quality-light);   color: var(--dim-quality-dark); }
.tag-story     { background: var(--dim-story-light);     color: var(--dim-story-dark); }
.tag-lifestyle { background: var(--dim-lifestyle-light); color: var(--dim-lifestyle-dark); }
.tag-education { background: var(--dim-education-light); color: var(--dim-education-dark); }

/* Cards */
.card {
  background: var(--pure-white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 200ms ease-out, transform 200ms ease-out;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--gray-200);
}
.card-image-placeholder {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, var(--deep-forest) 0%, #1a3d1f 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.3);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.1em;
}
.card-body {
  padding: var(--space-5) var(--space-6);
}
.card-tag-row {
  margin-bottom: var(--space-3);
}
.card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.4;
  margin-bottom: var(--space-2);
}
.card-desc {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.65;
}

/* Data Card */
.data-card {
  background: var(--pure-white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-8);
  box-shadow: var(--shadow-sm);
}
.data-card-number {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 800;
  color: var(--bee-green);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-2);
}
.data-card-label {
  font-size: 14px;
  color: var(--gray-600);
  margin-bottom: var(--space-2);
}
.data-card-source {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-400);
}

/* ---------- Table ---------- */
.ds-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.ds-table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-size: 11px;
  font-weight: 600;
  color: var(--gray-500);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--gray-200);
  font-family: var(--font-mono);
}
.ds-table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  vertical-align: top;
  line-height: 1.5;
}
.ds-table tr:last-child td { border-bottom: none; }
.ds-table tr:hover td { background: var(--gray-50); }
code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--gray-100);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--gray-700);
}

/* ---------- Callout ---------- */
.callout {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-lg);
  border-left: 3px solid;
  margin: var(--space-6) 0;
}
.callout-info {
  background: #EEF9FD;
  border-color: #3BB4D8;
}
.callout-warning {
  background: #FFFBEB;
  border-color: #F5A623;
}
.callout-danger {
  background: #FFF0F0;
  border-color: #E05252;
}
.callout-icon { font-size: 18px; flex-shrink: 0; }
.callout-body { font-size: 14px; color: var(--gray-700); line-height: 1.6; }
.callout-body strong { color: var(--gray-900); }

/* ---------- Voice Example ---------- */
.voice-example {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
  position: relative;
}
.voice-example-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--bee-green);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.voice-example-text {
  font-size: 15px;
  color: var(--gray-800);
  line-height: 1.7;
  font-style: italic;
}
.voice-example.bad {
  opacity: 0.7;
}
.voice-example.bad .voice-example-label {
  color: #E05252;
}
.voice-bad-text {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.7;
  font-style: italic;
  text-decoration: line-through;
  text-decoration-color: #E05252;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-16);
  border-bottom: 1px solid var(--gray-100);
  font-size: 13px;
  color: var(--gray-400);
  background: var(--gray-50);
}
.breadcrumb a { color: var(--gray-600); }
.breadcrumb a:hover { color: var(--gray-900); }
.breadcrumb-sep { color: var(--gray-300); }
.breadcrumb-current { color: var(--gray-700); font-weight: 500; }

/* ---------- Hero Override (index) ---------- */
.index-hero {
  background: var(--deep-forest);
  padding: var(--space-24) var(--space-16) var(--space-20);
  position: relative;
  overflow: hidden;
}
.index-hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(52,199,89,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.index-hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--bee-green);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}
.index-hero h1 {
  font-family: var(--font-display);
  font-size: 80px;
  font-weight: 900;
  color: var(--pure-white);
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}
.index-hero h1 em {
  color: var(--bee-green);
  font-style: normal;
}
.index-hero-desc {
  font-size: 18px;
  color: rgba(255,255,255,0.55);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: var(--space-10);
}
.index-hero-meta {
  display: flex;
  gap: var(--space-8);
}
.index-hero-meta-item {}
.index-hero-meta-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}
.index-hero-meta-value {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
}

/* Index Nav Grid */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  padding: var(--space-12) var(--space-16);
}
.nav-card {
  display: block;
  padding: var(--space-6);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: all 200ms ease-out;
  background: var(--pure-white);
  position: relative;
  overflow: hidden;
}
.nav-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--bee-green);
  transform: scaleX(0);
  transition: transform 200ms ease-out;
  transform-origin: left;
}
.nav-card:hover {
  border-color: var(--gray-300);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}
.nav-card:hover::after { transform: scaleX(1); }
.nav-card-icon {
  font-size: 28px;
  margin-bottom: var(--space-4);
}
.nav-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
}
.nav-card-desc {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.55;
}
.nav-card-arrow {
  margin-top: var(--space-4);
  font-size: 13px;
  color: var(--bee-green);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ---------- Motion Demo ---------- */
.motion-demo-box {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.motion-trigger {
  background: var(--bee-green);
  color: var(--deep-forest);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-2xl);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
}

/* ---------- Fade-in on scroll ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 500ms ease-out, transform 500ms ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  :root { --sidebar-width: 220px; }
  .content { padding: var(--space-8) var(--space-10); }
  .page-header { padding: var(--space-16) var(--space-10) var(--space-10); }
  .page-header h1 { font-size: 44px; }
  .nav-grid { grid-template-columns: repeat(2, 1fr); padding: var(--space-8) var(--space-10); }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 250ms ease-out;
  }
  .sidebar.open { transform: none; }
  .main { margin-left: 0; }
  .mobile-menu-btn {
    display: flex;
    position: fixed;
    top: 16px; left: 16px;
    z-index: 200;
    background: var(--deep-forest);
    color: white;
    border: none;
    border-radius: 8px;
    width: 40px; height: 40px;
    align-items: center; justify-content: center;
    cursor: pointer;
    font-size: 18px;
  }
  .page-header { padding: var(--space-20) var(--space-6) var(--space-8); }
  .page-header h1 { font-size: 36px; }
  .content { padding: var(--space-6); }
  .nav-grid { grid-template-columns: 1fr; padding: var(--space-6); }
  .index-hero { padding: var(--space-20) var(--space-6) var(--space-12); }
  .index-hero h1 { font-size: 48px; }
  .breadcrumb { padding: var(--space-3) var(--space-6); }
  .color-grid { grid-template-columns: repeat(2, 1fr); }
  .dimension-row { grid-template-columns: 1fr; }
  .type-scale-row { grid-template-columns: 1fr; gap: var(--space-2); }
}
.mobile-menu-btn { display: none; }