/* =====================================================
   NousTrader Brandbook — Main Stylesheet
   Sistema visual baseado em Midnight Blue + Marigold Orange + Light Gray
   Tipografia: Century Gothic (display) + Segoe UI (UI/body)
   ===================================================== */

/* ==================== CSS CUSTOM PROPERTIES ==================== */
:root {
  /* Brand Colors — Confirmados */
  --brand-midnight: #273D52;
  --brand-orange: #F09308;
  --brand-gray: #B7B7B7;

  /* Extended Palette — Proposta Recomendada */
  --ink-900: #0F1720;
  --ink-800: #182432;
  --ink-700: #1E2B38;
  --ink-600: #273D52;
  --surface-50: #F8FAFB;
  --surface-100: #F4F7F9;
  --surface-200: #E9EEF2;
  --surface-300: #D5DDE5;
  --surface-400: #B7B7B7;
  --white: #FFFFFF;

  /* Semantic */
  --state-success: #1F8F5F;
  --state-success-bg: #E8F7F0;
  --state-warning: #D97706;
  --state-warning-bg: #FEF3C7;
  --state-danger: #C24141;
  --state-danger-bg: #FEE8E8;
  --state-info: #3B82F6;
  --state-info-bg: #EFF6FF;

  /* Chart */
  --chart-op: #3B82F6;
  --chart-emo: #D97706;
  --chart-neutral: #6B7280;

  /* Status badges */
  --badge-confirmed: #1F8F5F;
  --badge-confirmed-bg: #E8F7F0;
  --badge-proposed: #D97706;
  --badge-proposed-bg: #FEF3C7;

  /* Typography */
  --font-display: 'Century Gothic', 'Avenir Next', 'Montserrat', sans-serif;
  --font-ui: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;

  /* Type Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.5rem;
  --text-6xl: 4.5rem;

  /* Spacing (8pt system) */
  --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;
  --space-24: 6rem;

  /* Layout */
  --sidebar-width: 272px;
  --content-max: 800px;
  --section-max: 1140px;
  --border-radius: 8px;
  --border-radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 32, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 23, 32, 0.10);
  --shadow-lg: 0 8px 32px rgba(15, 23, 32, 0.14);

  /* Transitions */
  --transition-fast: 140ms ease;
  --transition-base: 220ms ease;
  --transition-slow: 320ms ease;
}

/* ==================== RESET & BASE ==================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-ui);
  background: var(--surface-50);
  color: var(--ink-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==================== READING PROGRESS BAR ==================== */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--brand-orange);
  width: 0%;
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ==================== TOP BAR (mobile) ==================== */
.topbar {
  display: none;
  position: fixed;
  top: 3px;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--white);
  border-bottom: 1px solid var(--surface-200);
  padding: var(--space-3) var(--space-4);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  box-shadow: var(--shadow-sm);
}

.topbar-logo {
  height: 28px;
  width: auto;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar-btn {
  background: none;
  border: 1px solid var(--surface-300);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  color: var(--ink-700);
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all var(--transition-fast);
}

.topbar-btn:hover {
  background: var(--surface-100);
  border-color: var(--brand-midnight);
}

/* ==================== SIDEBAR ==================== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--ink-900);
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(255,255,255,0.06);
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 2px; }

.sidebar-header {
  padding: var(--space-6) var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}

.sidebar-logo {
  width: 140px;
  height: auto;
  display: block;
}

.sidebar-tagline {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
  margin-top: var(--space-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sidebar-search {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}

.sidebar-search-input {
  width: 100%;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 6px;
  padding: 7px 10px 7px 32px;
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  color: var(--white);
  outline: none;
  transition: border-color var(--transition-fast);
  background-image: url("data:image/svg+xml,%3Csvg width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23B7B7B7' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 10px center;
}

.sidebar-search-input::placeholder { color: rgba(255,255,255,0.30); }
.sidebar-search-input:focus { border-color: var(--brand-orange); background-color: rgba(255,255,255,0.09); }

.sidebar-nav { padding: var(--space-4) 0; flex: 1; }

.nav-group { margin-bottom: var(--space-1); }

.nav-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-5);
  cursor: pointer;
  user-select: none;
}

.nav-group-label {
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.30);
}

.nav-group-toggle {
  color: rgba(255,255,255,0.20);
  font-size: 10px;
  transition: transform var(--transition-fast);
}

.nav-group.open .nav-group-toggle { transform: rotate(180deg); }

.nav-items { display: none; }
.nav-group.open .nav-items { display: block; }

.nav-item {
  display: block;
  text-decoration: none;
  padding: 7px var(--space-5);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  transition: all var(--transition-fast);
  border-left: 2px solid transparent;
  position: relative;
  line-height: 1.4;
}

.nav-item:hover {
  color: var(--white);
  background: rgba(255,255,255,0.04);
  border-left-color: rgba(240, 147, 8, 0.4);
}

.nav-item.active {
  color: var(--white);
  background: rgba(240, 147, 8, 0.10);
  border-left-color: var(--brand-orange);
}

.nav-item-sub {
  padding-left: calc(var(--space-5) + 12px);
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.38);
  padding-top: 5px;
  padding-bottom: 5px;
}

.nav-item-sub:hover {
  color: rgba(255,255,255,0.75);
  border-left-color: rgba(240, 147, 8, 0.25);
}

.nav-item-sub.active {
  color: rgba(240, 147, 8, 0.90);
  border-left-color: var(--brand-orange);
  background: rgba(240, 147, 8, 0.07);
}

.sidebar-version {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.20);
  flex-shrink: 0;
}

/* ==================== MAIN LAYOUT ==================== */
.main-wrapper {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

/* ==================== PAGE SECTIONS ==================== */
.page-section {
  display: none;
  min-height: 100vh;
}

.page-section.active {
  display: block;
}

/* ==================== SECTION HERO ==================== */
.section-hero {
  background: var(--ink-900);
  padding: var(--space-24) var(--space-16) var(--space-20);
  position: relative;
  overflow: hidden;
}

.section-hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240,147,8,0.08) 0%, transparent 65%);
  pointer-events: none;
}

.section-hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(39,61,82,0.6) 0%, transparent 65%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-orange);
  margin-bottom: var(--space-5);
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--brand-orange);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 700px;
  margin-bottom: var(--space-6);
}

.hero-title span { color: var(--brand-orange); }

.hero-subtitle {
  font-size: var(--text-xl);
  color: rgba(255,255,255,0.55);
  max-width: 560px;
  line-height: 1.6;
  margin-bottom: var(--space-10);
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.38);
}

.hero-meta-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(255,255,255,0.20);
}

/* ==================== SECTION CONTENT AREA ==================== */
.section-body {
  padding: var(--space-16) var(--space-16) var(--space-24);
  max-width: calc(var(--content-max) + var(--space-16) * 2);
}

/* ==================== CONTENT BLOCKS ==================== */
.content-block {
  margin-bottom: var(--space-16);
  scroll-margin-top: var(--space-8);
}

.content-block + .content-block {
  padding-top: var(--space-12);
  border-top: 1px solid var(--surface-200);
}

.block-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--brand-orange);
  margin-bottom: var(--space-4);
}

.block-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--ink-800);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

.block-subtitle {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--ink-700);
  line-height: 1.3;
  margin-bottom: var(--space-3);
  margin-top: var(--space-8);
}

.block-body {
  font-size: var(--text-base);
  color: #3D4F60;
  line-height: 1.75;
  max-width: var(--content-max);
}

.block-body p { margin-bottom: var(--space-4); }
.block-body p:last-child { margin-bottom: 0; }

.block-lead {
  font-size: var(--text-xl);
  color: var(--ink-700);
  line-height: 1.65;
  max-width: var(--content-max);
  margin-bottom: var(--space-6);
}

/* ==================== STATUS BADGES ==================== */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-ui);
  line-height: 1;
  letter-spacing: 0.03em;
}

.status-confirmed {
  background: var(--badge-confirmed-bg);
  color: var(--badge-confirmed);
  border: 1px solid rgba(31, 143, 95, 0.25);
}

.status-proposed {
  background: var(--badge-proposed-bg);
  color: var(--badge-proposed);
  border: 1px solid rgba(217, 119, 6, 0.25);
}

.status-badge::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* ==================== DIVIDER ==================== */
.divider {
  border: none;
  border-top: 1px solid var(--surface-200);
  margin: var(--space-12) 0;
}

.divider-accent {
  position: relative;
  border-top: 1px solid var(--surface-200);
  margin: var(--space-12) 0;
}

.divider-accent::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--brand-orange);
}

/* ==================== QUOTE BLOCK ==================== */
.quote-block {
  background: var(--ink-900);
  border-radius: var(--border-radius-lg);
  padding: var(--space-10) var(--space-12);
  position: relative;
  overflow: hidden;
  margin: var(--space-8) 0;
}

.quote-block::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: 24px;
  font-family: var(--font-display);
  font-size: 120px;
  color: rgba(240, 147, 8, 0.12);
  line-height: 1;
  pointer-events: none;
}

.quote-text {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--white);
  line-height: 1.35;
  position: relative;
  z-index: 1;
}

.quote-text em {
  color: var(--brand-orange);
  font-style: normal;
}

.quote-source {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.38);
  position: relative;
  z-index: 1;
}

/* ==================== VALUE CARDS GRID ==================== */
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.value-card {
  background: var(--white);
  border: 1px solid var(--surface-200);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base);
}

.value-card:hover { box-shadow: var(--shadow-md); }

.value-card-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--surface-200);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.value-card-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--brand-midnight);
  margin-bottom: var(--space-2);
}

.value-card-desc {
  font-size: var(--text-sm);
  color: #6B7280;
  line-height: 1.6;
}

.value-card-accent {
  display: block;
  width: 32px;
  height: 2px;
  background: var(--brand-orange);
  margin-bottom: var(--space-4);
}

/* ==================== DEFINITION LIST ==================== */
.def-list { margin-top: var(--space-6); }

.def-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-8);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--surface-200);
  align-items: start;
}

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

.def-term {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--ink-800);
}

.def-desc {
  font-size: var(--text-base);
  color: #3D4F60;
  line-height: 1.7;
}

/* ==================== IS / IS NOT TABLE ==================== */
.is-not-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.is-col {
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
}

.is-col.is-yes { background: var(--surface-50); border: 1px solid var(--surface-200); }
.is-col.is-no { background: #FFF8F8; border: 1px solid #FBDADA; }

.is-col-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.is-col.is-yes .is-col-header { color: var(--badge-confirmed); }
.is-col.is-no .is-col-header { color: var(--state-danger); }

.is-list { list-style: none; }
.is-list li {
  font-size: var(--text-sm);
  color: #3D4F60;
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(0,0,0,0.04);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  line-height: 1.5;
}
.is-list li:last-child { border-bottom: none; }
.is-list li::before {
  content: '→';
  font-size: var(--text-xs);
  opacity: 0.5;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ==================== PILLAR CARDS ==================== */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.pillar-card {
  background: var(--ink-800);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
}

.pillar-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--brand-orange);
}

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

.pillar-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--space-2);
}

.pillar-desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.50);
  line-height: 1.55;
}

/* ==================== MESSAGES GRID ==================== */
.messages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.message-card {
  background: var(--white);
  border: 1px solid var(--surface-200);
  border-left: 3px solid var(--brand-orange);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--ink-800);
  line-height: 1.4;
}

/* ==================== VOCAB TABLE ==================== */
.vocab-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.vocab-col {
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
}

.vocab-use { background: var(--state-info-bg); border: 1px solid rgba(59,130,246,0.15); }
.vocab-avoid { background: var(--state-danger-bg); border: 1px solid rgba(194,65,65,0.15); }

.vocab-col-header {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(0,0,0,0.07);
}

.vocab-use .vocab-col-header { color: var(--state-info); }
.vocab-avoid .vocab-col-header { color: var(--state-danger); }

.vocab-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: var(--text-xs);
  font-weight: 600;
  margin: 3px;
}

.vocab-use .vocab-tag { background: rgba(59,130,246,0.12); color: var(--state-info); }
.vocab-avoid .vocab-tag { background: rgba(194,65,65,0.10); color: var(--state-danger); }

/* ==================== DOS DON'TS TABLE ==================== */
.dos-donts {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid var(--surface-200);
  margin-top: var(--space-6);
}

.dos-donts-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--ink-800);
}

.dnd-head {
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.dnd-do { color: var(--state-success); }
.dnd-dont { color: var(--state-danger); border-left: 1px solid rgba(255,255,255,0.06); }

.dos-donts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--surface-200);
}

.dnd-cell {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: #3D4F60;
}

.dnd-cell.dnd-no {
  border-left: 1px solid var(--surface-200);
  background: #FFF9F9;
  color: #7A3030;
  text-decoration: line-through;
  text-decoration-color: rgba(194,65,65,0.4);
}

.dnd-cell.dnd-yes { background: #F6FBF8; }

/* ==================== BEFORE / AFTER ==================== */
.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.ba-col { border-radius: var(--border-radius-lg); padding: var(--space-6); }
.ba-before { background: #FFF5F5; border: 1px solid rgba(194,65,65,0.20); }
.ba-after { background: #F2F9F6; border: 1px solid rgba(31,143,95,0.20); }

.ba-label {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.ba-before .ba-label { color: var(--state-danger); }
.ba-after .ba-label { color: var(--state-success); }

.ba-text {
  font-size: var(--text-sm);
  line-height: 1.65;
  font-style: italic;
}

.ba-before .ba-text { color: #7A3030; }
.ba-after .ba-text { color: #1A5C3A; }

/* ==================== LOGO GALLERY ==================== */
.logo-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.logo-card {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid var(--surface-200);
  transition: box-shadow var(--transition-base);
}

.logo-card:hover { box-shadow: var(--shadow-md); }

.logo-preview {
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  position: relative;
}

.logo-preview.light-bg { background: var(--surface-50); }
.logo-preview.dark-bg { background: var(--ink-900); }
.logo-preview.mid-bg { background: var(--ink-700); }

.logo-preview img {
  max-width: 75%;
  max-height: 130px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

.logo-info {
  padding: var(--space-4) var(--space-5);
  background: var(--white);
  border-top: 1px solid var(--surface-200);
}

.logo-code {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-orange);
  margin-bottom: var(--space-1);
}

.logo-name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--ink-800);
  margin-bottom: var(--space-2);
}

.logo-use {
  font-size: var(--text-xs);
  color: #6B7280;
  line-height: 1.5;
}

.logo-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

.logo-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  background: var(--surface-100);
  color: #6B7280;
  border: 1px solid var(--surface-300);
}

/* ==================== COLOR SYSTEM ==================== */
.color-palette {
  margin-top: var(--space-6);
}

.palette-row {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.palette-row-2 { grid-template-columns: repeat(2, 1fr); }
.palette-row-3 { grid-template-columns: repeat(3, 1fr); }
.palette-row-4 { grid-template-columns: repeat(4, 1fr); }
.palette-row-5 { grid-template-columns: repeat(5, 1fr); }
.palette-row-6 { grid-template-columns: repeat(6, 1fr); }
.palette-row-auto { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }

.color-swatch {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
  transition: transform var(--transition-fast);
  cursor: pointer;
}

.color-swatch:hover { transform: translateY(-2px); }

.swatch-block {
  height: 80px;
  width: 100%;
}

.swatch-block.tall { height: 120px; }

.swatch-info {
  background: var(--white);
  padding: var(--space-3);
}

.swatch-name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--ink-800);
  margin-bottom: 2px;
}

.swatch-hex {
  font-family: 'Courier New', monospace;
  font-size: var(--text-xs);
  color: #6B7280;
}

.swatch-role {
  font-size: 11px;
  color: #9CA3AF;
  margin-top: 2px;
  line-height: 1.4;
}

/* ==================== TOKEN TABLE ==================== */
.token-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-6);
  font-size: var(--text-sm);
}

.token-table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  background: var(--surface-100);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6B7280;
  border-bottom: 2px solid var(--surface-200);
}

.token-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--surface-200);
  color: #3D4F60;
  vertical-align: middle;
}

.token-table tr:last-child td { border-bottom: none; }
.token-table tr:hover td { background: var(--surface-50); }

.token-name {
  font-family: 'Courier New', monospace;
  font-size: var(--text-xs);
  background: var(--surface-100);
  padding: 2px 7px;
  border-radius: 4px;
  color: var(--ink-700);
  border: 1px solid var(--surface-300);
}

.token-preview {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 1px solid rgba(0,0,0,0.08);
  display: inline-block;
  vertical-align: middle;
}

/* ==================== TYPOGRAPHY SCALE ==================== */
.type-scale { margin-top: var(--space-8); }

.type-example {
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--surface-200);
  display: flex;
  align-items: baseline;
  gap: var(--space-8);
}

.type-example:last-child { border-bottom: none; }

.type-meta {
  min-width: 140px;
  flex-shrink: 0;
}

.type-level {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-orange);
}

.type-spec {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: #9CA3AF;
  margin-top: 2px;
}

.type-sample { flex: 1; color: var(--ink-800); }

/* ==================== INFO CALLOUT ==================== */
.callout {
  border-radius: var(--border-radius-lg);
  padding: var(--space-5) var(--space-6);
  margin: var(--space-6) 0;
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.callout-info {
  background: var(--state-info-bg);
  border: 1px solid rgba(59,130,246,0.20);
  border-left: 3px solid var(--state-info);
}

.callout-warning {
  background: var(--state-warning-bg);
  border: 1px solid rgba(217,119,6,0.20);
  border-left: 3px solid var(--state-warning);
}

.callout-success {
  background: var(--state-success-bg);
  border: 1px solid rgba(31,143,95,0.20);
  border-left: 3px solid var(--state-success);
}

.callout-danger {
  background: var(--state-danger-bg);
  border: 1px solid rgba(194,65,65,0.20);
  border-left: 3px solid var(--state-danger);
}

.callout-icon { font-size: 1.2rem; flex-shrink: 0; }

.callout-content {}
.callout-title {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.callout-info .callout-title { color: var(--state-info); }
.callout-warning .callout-title { color: var(--state-warning); }
.callout-success .callout-title { color: var(--state-success); }
.callout-danger .callout-title { color: var(--state-danger); }

.callout-text {
  font-size: var(--text-sm);
  line-height: 1.65;
  color: #3D4F60;
}

/* ==================== LOGO RULES GRID ==================== */
.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.rule-card {
  background: var(--white);
  border: 1px solid var(--surface-200);
  border-radius: var(--border-radius-lg);
  padding: var(--space-5);
  transition: box-shadow var(--transition-base);
}

.rule-card:hover { box-shadow: var(--shadow-sm); }

.rule-card-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
}

.rule-card-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--ink-800);
  margin-bottom: var(--space-2);
}

.rule-card-text {
  font-size: var(--text-sm);
  color: #6B7280;
  line-height: 1.6;
}

.rule-card.rule-danger {
  border-left: 3px solid var(--state-danger);
  background: #FFF8F8;
}

.rule-card.rule-success {
  border-left: 3px solid var(--state-success);
  background: #F6FBF8;
}

/* ==================== CHECKLIST ==================== */
.checklist {
  list-style: none;
  margin-top: var(--space-6);
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--surface-200);
  font-size: var(--text-base);
  color: #3D4F60;
  line-height: 1.6;
}

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

.checklist-check {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 2px solid var(--surface-300);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  background: var(--white);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 12px;
  color: var(--white);
}

.checklist-item.checked .checklist-check {
  background: var(--state-success);
  border-color: var(--state-success);
}

/* ==================== MICROCOPY EXAMPLES ==================== */
.microcopy-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.micro-card {
  background: var(--white);
  border: 1px solid var(--surface-200);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.micro-context {
  background: var(--surface-100);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6B7280;
}

.micro-text {
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-base);
  color: var(--ink-800);
  line-height: 1.6;
  font-style: italic;
}

/* ==================== DATA VIZ PRINCIPLES ==================== */
.chart-demo {
  background: var(--white);
  border: 1px solid var(--surface-200);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-6);
}

.chart-demo-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--ink-800);
  margin-bottom: var(--space-4);
}

/* Simulated chart */
.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 120px;
}

.chart-bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  transition: opacity var(--transition-fast);
}

.chart-bar:hover { opacity: 0.8; }

.chart-legend {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-4);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: #6B7280;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

/* Radar chart simulation */
.radar-demo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

/* ==================== UI COMPONENT CARDS ==================== */
.ui-showcase {
  background: var(--ink-900);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  margin-top: var(--space-6);
}

.kpi-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.kpi-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--border-radius);
  padding: var(--space-4);
}

.kpi-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.35);
  margin-bottom: var(--space-2);
}

.kpi-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1;
}

.kpi-value.positive { color: #34D399; }
.kpi-value.warning { color: var(--brand-orange); }
.kpi-value.negative { color: #F87171; }
.kpi-value.neutral { color: var(--white); }

.kpi-sub {
  font-size: 11px;
  margin-top: var(--space-1);
}

.kpi-sub.positive { color: rgba(52, 211, 153, 0.65); }
.kpi-sub.warning { color: rgba(240, 147, 8, 0.65); }
.kpi-sub.negative { color: rgba(248, 113, 113, 0.65); }

/* Semaphore indicator */
.semaphore {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.sem-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
}

.sem-red { background: var(--state-danger); box-shadow: 0 0 8px rgba(194,65,65,0.4); }
.sem-yellow { background: var(--brand-orange); box-shadow: 0 0 8px rgba(240,147,8,0.4); }
.sem-green { background: var(--state-success); box-shadow: 0 0 8px rgba(31,143,95,0.4); }

.sem-label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
}

/* Alert card */
.alert-card {
  background: rgba(194,65,65,0.12);
  border: 1px solid rgba(194,65,65,0.30);
  border-left: 3px solid var(--state-danger);
  border-radius: var(--border-radius);
  padding: var(--space-4);
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.alert-card-icon { font-size: 1.2rem; flex-shrink: 0; }
.alert-card-title {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 700;
  color: #F87171;
  margin-bottom: var(--space-1);
}

.alert-card-text {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  line-height: 1.55;
}

/* ==================== MOTION EXAMPLES ==================== */
.motion-demo {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.motion-card {
  background: var(--white);
  border: 1px solid var(--surface-200);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  text-align: center;
}

.motion-preview {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.motion-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--brand-orange);
}

.motion-card:nth-child(1) .motion-dot { animation: motionFade 2s ease-in-out infinite; }
.motion-card:nth-child(2) .motion-dot { animation: motionSlide 2s ease-in-out infinite; }
.motion-card:nth-child(3) .motion-dot { animation: motionScale 2s ease-in-out infinite; }

@keyframes motionFade {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.15; }
}

@keyframes motionSlide {
  0%, 100% { transform: translateX(-20px); opacity: 0.5; }
  50% { transform: translateX(20px); opacity: 1; }
}

@keyframes motionScale {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.4); }
}

.motion-name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--ink-800);
  margin-bottom: var(--space-1);
}

.motion-spec {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: #9CA3AF;
}

/* ==================== GOVERNANCE ==================== */
.flow-steps {
  display: flex;
  gap: 0;
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

.flow-step {
  flex: 1;
  min-width: 140px;
  background: var(--white);
  border: 1px solid var(--surface-200);
  padding: var(--space-5);
  position: relative;
  text-align: center;
}

.flow-step::after {
  content: '→';
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--brand-orange);
  font-size: var(--text-lg);
  z-index: 1;
}

.flow-step:last-child::after { display: none; }

.flow-step:first-child { border-radius: var(--border-radius) 0 0 var(--border-radius); }
.flow-step:last-child { border-radius: 0 var(--border-radius) var(--border-radius) 0; }

.flow-num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--surface-300);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.flow-label {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--ink-800);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ==================== ASSET LIBRARY ==================== */
.asset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.asset-card {
  background: var(--white);
  border: 1px solid var(--surface-200);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.asset-card:hover { box-shadow: var(--shadow-md); }

.asset-thumb {
  height: 140px;
  background: var(--surface-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.asset-thumb.dark { background: var(--ink-900); }

.asset-thumb img {
  max-width: 80%;
  max-height: 90px;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

.asset-info {
  padding: var(--space-4) var(--space-5);
}

.asset-name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--ink-800);
  margin-bottom: var(--space-1);
}

.asset-meta {
  font-size: var(--text-xs);
  color: #9CA3AF;
  margin-bottom: var(--space-3);
}

.asset-filename {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  background: var(--surface-100);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--ink-700);
  display: block;
  margin-bottom: var(--space-3);
  border: 1px solid var(--surface-300);
  word-break: break-all;
}

.asset-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 14px;
  background: var(--ink-800);
  color: var(--white);
  border-radius: 6px;
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition-fast);
  border: none;
  cursor: pointer;
}

.asset-btn:hover { background: var(--brand-midnight); }

/* ==================== SEARCH OVERLAY ==================== */
.search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(15,23,32,0.6);
  backdrop-filter: blur(4px);
}

.search-overlay.open { display: flex; align-items: flex-start; justify-content: center; padding-top: 100px; }

.search-modal {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  width: 90%;
  max-width: 620px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--surface-200);
}

.search-icon { color: #9CA3AF; font-size: 1.2rem; flex-shrink: 0; }
.search-main-input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-ui);
  font-size: var(--text-lg);
  color: var(--ink-800);
  background: transparent;
}

.search-main-input::placeholder { color: #9CA3AF; }
.search-close { color: #9CA3AF; cursor: pointer; font-size: 1.2rem; padding: 4px; }

.search-results {
  max-height: 400px;
  overflow-y: auto;
  padding: var(--space-3) 0;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  cursor: pointer;
  transition: background var(--transition-fast);
  text-decoration: none;
}

.search-result-item:hover { background: var(--surface-50); }

.search-result-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--surface-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.search-result-text {}
.search-result-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--ink-800);
  margin-bottom: 2px;
}

.search-result-section {
  font-size: var(--text-xs);
  color: #9CA3AF;
}

.search-empty {
  text-align: center;
  padding: var(--space-12) var(--space-8);
  color: #9CA3AF;
  font-size: var(--text-base);
}

/* ==================== SECTION NAV (in-page) ==================== */
.section-nav-bar {
  background: var(--white);
  border-bottom: 1px solid var(--surface-200);
  position: sticky;
  top: 0;
  z-index: 50;
  overflow-x: auto;
}

.section-nav-bar::-webkit-scrollbar { height: 0; }

.section-nav-inner {
  display: flex;
  padding: 0 var(--space-16);
}

.section-nav-tab {
  display: inline-block;
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 600;
  color: #6B7280;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.section-nav-tab:hover { color: var(--ink-800); }
.section-nav-tab.active { color: var(--brand-midnight); border-bottom-color: var(--brand-orange); }

/* ==================== NEXT SECTION FOOTER ==================== */
.next-section {
  background: var(--surface-100);
  border-top: 1px solid var(--surface-200);
  padding: var(--space-8) var(--space-16);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.next-section-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: #9CA3AF;
  margin-bottom: var(--space-1);
}

.next-section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--ink-800);
}

.next-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  background: var(--brand-midnight);
  color: var(--white);
  border-radius: var(--border-radius);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background var(--transition-base);
}

.next-btn:hover { background: var(--ink-700); }
.next-btn span { font-size: 1.1rem; }

/* ==================== MOBILE DRAWER ==================== */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15,23,32,0.6);
  z-index: 90;
}

.sidebar-overlay.open { display: block; }

/* ==================== MISC ==================== */
.tag-group {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: var(--text-xs);
  font-weight: 600;
  background: var(--surface-100);
  color: var(--ink-700);
  border: 1px solid var(--surface-300);
  cursor: default;
}

.tag.orange { background: rgba(240,147,8,0.10); color: #92660A; border-color: rgba(240,147,8,0.25); }
.tag.blue { background: rgba(59,130,246,0.10); color: #1E50A8; border-color: rgba(59,130,246,0.25); }
.tag.green { background: rgba(31,143,95,0.10); color: #155D3B; border-color: rgba(31,143,95,0.25); }
.tag.red { background: rgba(194,65,65,0.10); color: #8B2424; border-color: rgba(194,65,65,0.25); }

.inline-code {
  font-family: 'Courier New', monospace;
  font-size: 0.875em;
  background: var(--surface-100);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--surface-300);
  color: var(--ink-700);
}

.section-number {
  font-family: var(--font-display);
  font-size: 80px;
  font-weight: 700;
  color: var(--surface-200);
  line-height: 1;
  position: absolute;
  right: var(--space-16);
  top: var(--space-20);
  pointer-events: none;
  user-select: none;
}

/* ==================== ICON GRID ==================== */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.icon-item {
  background: var(--white);
  border: 1px solid var(--surface-200);
  border-radius: var(--border-radius);
  padding: var(--space-4);
  text-align: center;
  transition: all var(--transition-fast);
}

.icon-item:hover {
  background: var(--surface-50);
  border-color: var(--brand-orange);
}

.icon-item-svg {
  width: 28px;
  height: 28px;
  margin: 0 auto var(--space-2);
  color: var(--ink-700);
}

.icon-item-name {
  font-size: 10px;
  color: #9CA3AF;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .main-wrapper {
    margin-left: 0;
  }

  .topbar {
    display: flex;
    top: 3px;
  }

  .page-section.active {
    padding-top: 56px;
  }

  .section-hero {
    padding: var(--space-12) var(--space-8) var(--space-16);
  }

  .section-body {
    padding: var(--space-10) var(--space-8) var(--space-16);
  }

  .section-nav-inner {
    padding: 0 var(--space-8);
  }

  .next-section {
    padding: var(--space-6) var(--space-8);
  }

  .section-number { display: none; }

  /* Sticky section nav below topbar on tablet */
  .section-nav-bar {
    top: 59px;
  }
}

@media (max-width: 768px) {
  .section-hero {
    padding: var(--space-10) var(--space-5) var(--space-12);
  }

  .section-body {
    padding: var(--space-8) var(--space-5) var(--space-12);
  }

  .section-nav-inner { padding: 0 var(--space-4); }
  .next-section { padding: var(--space-6) var(--space-5); flex-direction: column; align-items: flex-start; gap: var(--space-4); }

  .is-not-grid { grid-template-columns: 1fr; }
  .vocab-grid { grid-template-columns: 1fr; }
  .before-after { grid-template-columns: 1fr; }
  .logo-gallery { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr 1fr; }
  .pillar-grid { grid-template-columns: 1fr 1fr; }

  .def-item { grid-template-columns: 1fr; gap: var(--space-2); }
  .type-example { flex-direction: column; gap: var(--space-2); }

  .dos-donts-header, .dos-donts-row { grid-template-columns: 1fr; }
  .dnd-cell.dnd-no { border-left: none; border-top: 1px solid var(--surface-200); }
  .dnd-dont { border-left: none; border-top: 1px solid rgba(255,255,255,0.06); }

  .quote-block { padding: var(--space-6) var(--space-6); }
  .quote-text { font-size: var(--text-xl); }

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

  .flow-steps { flex-direction: column; }
  .flow-step::after { content: '↓'; right: unset; top: unset; bottom: -12px; left: 50%; transform: translateX(-50%); }
  .flow-step { border-radius: var(--border-radius) !important; margin-bottom: var(--space-4); }

  .palette-row-3, .palette-row-4, .palette-row-5, .palette-row-6 {
    grid-template-columns: repeat(2, 1fr);
  }
}