/* VisionVolve Design System Showcase */

:root {
  --purple: #6E2C8B;
  --purple-dark: #4A1D5E;
  --purple-light: #9B59B6;
  --cyan: #00B8CF;
  --cyan-dark: #008B9A;
  --cyan-light: #67E8F9;
  --slate: #404B5C;
  --slate-light: #6B7280;
  --cloud: #F8F9FC;
  --silver: #E5E7EB;
  --white: #FFFFFF;
  --success: #059669;
  --warning: #D97706;
  --danger: #DC2626;
  --font-title: 'Lexend Deca', -apple-system, sans-serif;
  --font-body: 'Work Sans', -apple-system, sans-serif;
  --nav-height: 60px;
  --bg: var(--cloud);
  --bg-card: var(--white);
  --bg-card-hover: #F3F4F6;
  --border: var(--silver);
  --text: var(--slate);
  --text-muted: var(--slate-light);
  --text-dim: #9CA3AF;
}

/* === DARK THEME === */
[data-theme="dark"] {
  --purple-light: #8B47A8;
  --purple-dark: #4E1D63;
  --cyan-light: #33D4E8;
  --cyan-dark: #008FA0;
  --bg: #0D0F14;
  --bg-card: #14171E;
  --bg-card-hover: #1A1E28;
  --border: rgba(110,44,139,0.2);
  --text: #E8EAF0;
  --text-muted: #8B92A0;
  --text-dim: #5A6170;
  --cloud: #0D0F14;
  --silver: rgba(110,44,139,0.2);
  --white: #14171E;
  --slate: #E8EAF0;
  --slate-light: #8B92A0;
  --success: #34D399;
  --warning: #FBBF24;
  --danger: #DC2626;
}

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

body {
  font-family: var(--font-body);
  color: var(--slate);
  line-height: 1.6;
  background: var(--cloud);
}

/* === NAV === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--silver);
  height: var(--nav-height);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 100%;
  gap: 32px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo { height: 24px; width: auto; }

.nav-label {
  font-family: var(--font-title);
  font-size: 13px;
  font-weight: 500;
  color: var(--slate-light);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 4px;
  overflow-x: auto;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--slate-light);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 6px;
  transition: all 0.15s;
  white-space: nowrap;
}

.nav-link:hover { color: var(--slate); background: var(--cloud); }
.nav-link.active { color: var(--purple); background: rgba(110, 44, 139, 0.08); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--slate);
  border-radius: 1px;
}

/* === MAIN === */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* === HERO === */
.hero {
  background: linear-gradient(135deg, var(--purple-dark) 0%, var(--purple) 40%, var(--cyan-dark) 100%);
  border-radius: 16px;
  padding: 64px 48px;
  margin: 32px 0;
  color: var(--white);
}

.hero-title {
  font-family: var(--font-title);
  font-size: 42px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero-title .accent { color: var(--cyan-light); }

.hero-sub {
  font-size: 18px;
  font-weight: 300;
  opacity: 0.85;
  max-width: 560px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.stat { text-align: center; }
.stat-num {
  display: block;
  font-family: var(--font-title);
  font-size: 32px;
  font-weight: 800;
}
.stat-label {
  font-size: 13px;
  opacity: 0.7;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* === SECTIONS === */
.section { margin-top: 48px; }

.page-heading {
  font-family: var(--font-title);
  font-size: 32px;
  font-weight: 700;
  color: var(--slate);
  margin-bottom: 8px;
}

.page-desc {
  font-size: 16px;
  color: var(--slate-light);
  margin-bottom: 32px;
  max-width: 640px;
}

.section-title {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 700;
  color: var(--slate);
  margin-bottom: 24px;
}

.subsection-title {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 600;
  color: var(--slate);
  margin-bottom: 16px;
}

/* === CARD GRID (overview) === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.overview-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 12px;
  padding: 24px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
}
.overview-card:hover {
  border-color: var(--purple);
  box-shadow: 0 4px 20px rgba(110, 44, 139, 0.1);
  transform: translateY(-2px);
}
.overview-card h3 {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 600;
  margin: 16px 0 8px;
}
.overview-card p { font-size: 14px; color: var(--slate-light); }

.overview-card-swatches {
  display: flex;
  gap: 6px;
}
.overview-card-swatches span {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.overview-card-type {
  display: flex;
  gap: 16px;
  align-items: baseline;
}

.overview-card-spacing {
  display: flex;
  gap: 6px;
  align-items: flex-end;
}
.overview-card-spacing span {
  background: var(--cyan);
  border-radius: 3px;
}

.overview-card-comp {
  display: flex;
  gap: 8px;
  align-items: center;
}
.mini-card {
  width: 60px;
  height: 40px;
  border: 2px solid var(--silver);
  border-radius: 6px;
  background: var(--cloud);
}
.mini-bar {
  flex: 1;
  height: 12px;
  background: var(--purple);
  border-radius: 4px;
  opacity: 0.3;
}

.overview-card-brand { text-align: center; padding: 8px 0; }
.overview-card-api {
  background: var(--cloud);
  border-radius: 6px;
  padding: 10px;
}
.overview-card-api code {
  font-size: 13px;
  color: var(--purple);
}

/* === PALETTE STRIP === */
.palette-strip {
  display: flex;
  border-radius: 12px;
  overflow: hidden;
}
.palette-strip-item {
  flex: 1;
  padding: 24px 16px;
  color: var(--white);
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 100px;
  justify-content: flex-end;
}
.palette-strip-name { font-size: 12px; font-weight: 600; }
.palette-strip-hex { font-size: 11px; opacity: 0.8; }

/* === TOOLBAR === */
.toolbar {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.search-input {
  font-family: var(--font-body);
  font-size: 14px;
  padding: 10px 16px;
  border: 1px solid var(--silver);
  border-radius: 8px;
  background: var(--white);
  color: var(--slate);
  min-width: 250px;
}
.search-input:focus {
  outline: none;
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(110, 44, 139, 0.1);
}

/* === COLOR PAGE === */
.color-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.color-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.15s;
}
.color-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.08); }

.color-swatch {
  height: 80px;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.color-copy-label {
  font-size: 12px;
  font-weight: 600;
  color: white;
  background: rgba(0,0,0,0.3);
  padding: 4px 10px;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.15s;
}
.color-swatch:hover .color-copy-label { opacity: 1; }

.color-info { padding: 12px; }
.color-name { font-size: 14px; display: block; margin-bottom: 2px; }
.color-hex { font-size: 12px; color: var(--slate-light); display: block; margin-bottom: 6px; }
.color-desc { font-size: 12px; color: var(--slate-light); margin-bottom: 2px; }
.color-usage { font-size: 11px; color: var(--cyan-dark); }

/* === CONTRAST CHECKER === */
.contrast-checker {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 12px;
  padding: 24px;
}
.contrast-input-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.contrast-input-row label { font-weight: 600; font-size: 14px; }
.color-picker-input {
  width: 40px;
  height: 40px;
  border: 2px solid var(--silver);
  border-radius: 8px;
  cursor: pointer;
  padding: 2px;
}

.contrast-results { display: flex; gap: 24px; flex-wrap: wrap; }
.contrast-pair {
  flex: 1;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contrast-preview {
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--silver);
}
.contrast-preview.dark { background: var(--slate); }
.contrast-sample-text { font-size: 18px; font-weight: 600; }
.contrast-meta strong { display: block; font-size: 13px; margin-bottom: 4px; }
.contrast-ratio { font-family: var(--font-title); font-size: 24px; font-weight: 700; display: block; }
.contrast-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }

.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.badge.pass { background: #D1FAE5; color: var(--success); }
.badge.fail { background: #FEE2E2; color: var(--danger); }

/* === TYPOGRAPHY PAGE === */
.type-specimen {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
}
.type-specimen-header {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.type-role {
  font-size: 13px;
  color: var(--slate-light);
  background: var(--cloud);
  padding: 4px 10px;
  border-radius: 4px;
}
.type-usage { font-size: 14px; color: var(--slate-light); margin: 8px 0; }
.type-link {
  font-size: 13px;
  color: var(--cyan-dark);
  margin-bottom: 16px;
  display: inline-block;
}

.type-preview { margin-top: 16px; }
.type-sample {
  font-size: 18px;
  padding: 8px 0;
  border-bottom: 1px solid var(--cloud);
}
.type-sample:last-child { border-bottom: none; }

.type-scale { margin-top: 40px; }
.type-scale-table {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 12px;
  overflow: hidden;
}
.type-scale-row {
  display: grid;
  grid-template-columns: 60px 150px 1fr;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--cloud);
}
.type-scale-row:last-child { border-bottom: none; }
.type-scale-name { font-weight: 600; color: var(--purple); }
.type-scale-value { font-size: 13px; color: var(--slate-light); font-family: monospace; }

.weight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.weight-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}
.weight-preview {
  font-size: 36px;
  display: block;
  margin-bottom: 8px;
  color: var(--slate);
}
.weight-card strong { display: block; font-size: 14px; margin-bottom: 2px; }
.weight-card code { font-size: 12px; color: var(--slate-light); display: block; margin-bottom: 4px; }
.weight-usage { font-size: 11px; color: var(--slate-light); }

/* === SPACING PAGE === */
.unit-toggle {
  display: flex;
  gap: 2px;
  background: var(--silver);
  border-radius: 8px;
  padding: 2px;
}
.unit-btn {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  background: transparent;
  color: var(--slate-light);
  transition: all 0.15s;
}
.unit-btn.active {
  background: var(--white);
  color: var(--purple);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.spacing-scale {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 12px;
  overflow: hidden;
}
.spacing-row {
  display: grid;
  grid-template-columns: 60px 100px 1fr;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--cloud);
  gap: 16px;
}
.spacing-row:last-child { border-bottom: none; }
.spacing-name { font-weight: 600; color: var(--purple); }
.spacing-value { font-size: 13px; color: var(--slate-light); font-family: monospace; }
.spacing-bar {
  height: 20px;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
  border-radius: 4px;
  min-width: 2px;
  transition: width 0.3s;
}

.radius-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 16px;
}
.radius-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}
.radius-preview {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  margin: 0 auto 12px;
}
.radius-card strong { display: block; font-size: 14px; }
.radius-card code { font-size: 12px; color: var(--slate-light); }

.gradient-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.gradient-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 10px;
  overflow: hidden;
}
.gradient-preview {
  height: 80px;
}
.gradient-card strong { display: block; padding: 12px 16px 4px; font-size: 14px; }
.gradient-card p { padding: 0 16px; font-size: 13px; color: var(--slate-light); }
.gradient-card .copy-btn { margin: 8px 16px 12px; }

/* === COMPONENTS PAGE === */
.filter-pills { display: flex; gap: 6px; }
.pill {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border: 1px solid var(--silver);
  border-radius: 20px;
  cursor: pointer;
  background: var(--white);
  color: var(--slate-light);
  transition: all 0.15s;
}
.pill.active, .pill:hover {
  background: var(--purple);
  color: var(--white);
  border-color: var(--purple);
}

.comp-list { display: flex; flex-direction: column; gap: 24px; }

.comp-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 12px;
  overflow: hidden;
}

.comp-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--cloud);
}
.comp-name {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 600;
}
.comp-badge {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(110, 44, 139, 0.08);
  color: var(--purple);
}

.comp-desc { padding: 12px 20px 0; font-size: 14px; color: var(--slate-light); }

.comp-preview-container {
  padding: 20px;
  background: #f0f0f0;
  margin: 12px 20px;
  border-radius: 8px;
  overflow: auto;
}

.comp-meta {
  padding: 12px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
}
.comp-meta strong { color: var(--slate); margin-right: 6px; }
.comp-meta code {
  background: var(--cloud);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
  margin-right: 4px;
}
.variant-pill {
  font-size: 11px;
  padding: 2px 8px;
  border: 1px solid var(--silver);
  border-radius: 12px;
  margin-right: 4px;
}

.comp-code {
  margin: 0 20px 12px;
  background: var(--slate);
  border-radius: 8px;
  overflow: hidden;
}
.comp-code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: rgba(0,0,0,0.2);
  color: rgba(255,255,255,0.6);
  font-size: 12px;
}
.comp-code pre {
  padding: 12px;
  overflow-x: auto;
  font-size: 12px;
  color: rgba(255,255,255,0.85);
  line-height: 1.5;
}

.comp-usage {
  padding: 0 20px 16px;
  font-size: 13px;
  color: var(--slate-light);
}

/* === BRAND PAGE === */
.brand-header-card {
  background: linear-gradient(135deg, var(--purple-dark), var(--purple));
  border-radius: 12px;
  padding: 40px;
  color: var(--white);
}
.brand-header-card h2 {
  font-family: var(--font-title);
  font-size: 32px;
  font-weight: 800;
}
.brand-tagline { font-size: 18px; opacity: 0.8; margin-top: 8px; }

.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.logo-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 12px;
  overflow: hidden;
}
.logo-preview {
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-preview.dark {
  background: linear-gradient(135deg, var(--purple-dark), var(--slate));
}
.logo-preview.light {
  background: var(--cloud);
}
.logo-preview.checkered {
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
    linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
    linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}
.logo-preview img { max-width: 260px; max-height: 60px; }
.icon-preview img { max-width: 80px; max-height: 80px; }
.logo-info { padding: 16px; }
.logo-info strong { display: block; font-size: 14px; margin-bottom: 4px; }
.logo-info p { font-size: 13px; color: var(--slate-light); margin-bottom: 12px; }

.download-btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
  background: var(--purple);
  color: var(--white);
  text-decoration: none;
  transition: background 0.15s;
}
.download-btn:hover { background: var(--purple-dark); }
.download-btn.download-secondary {
  background: var(--white);
  color: var(--slate);
  border: 1px solid var(--silver);
}
.download-btn.download-secondary:hover {
  border-color: var(--purple);
  color: var(--purple);
  background: var(--white);
}
.logo-downloads { display: flex; gap: 6px; flex-wrap: wrap; }
.logo-grid-icons .logo-preview { padding: 24px; }

.guidelines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.guideline-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 10px;
  padding: 20px;
}
.guideline-card h3 {
  font-family: var(--font-title);
  font-size: 14px;
  font-weight: 600;
  color: var(--purple);
  margin-bottom: 8px;
}
.guideline-card p { font-size: 14px; color: var(--slate-light); }

.donot-list { display: flex; flex-direction: column; gap: 8px; }
.donot-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #FEE2E2;
  border-radius: 8px;
  font-size: 14px;
}
.donot-icon {
  font-size: 18px;
  font-weight: 700;
  color: var(--danger);
  width: 24px;
  text-align: center;
}

.brand-palette {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.brand-color {
  text-align: center;
  cursor: pointer;
}
.brand-color-swatch {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  margin-bottom: 8px;
  transition: transform 0.15s;
}
.brand-color:hover .brand-color-swatch { transform: scale(1.1); }
.brand-color strong { display: block; font-size: 12px; }
.brand-color code { font-size: 11px; color: var(--slate-light); }

.brand-fonts { display: flex; gap: 24px; flex-wrap: wrap; }
.brand-font-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 10px;
  padding: 24px 32px;
}
.brand-font-sample { font-size: 28px; }

/* === API PAGE === */
.api-group { margin-bottom: 40px; }
.api-list { display: flex; flex-direction: column; gap: 16px; }
.api-card {
  background: var(--white);
  border: 1px solid var(--silver);
  border-radius: 10px;
  padding: 20px;
}
.api-name {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 600;
  color: var(--purple);
  margin-bottom: 4px;
}
.api-desc { font-size: 14px; color: var(--slate-light); margin-bottom: 8px; }
.api-params { font-size: 13px; margin-bottom: 8px; }
.api-params code {
  background: var(--cloud);
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 600;
}
.api-params span { color: var(--slate-light); }

.api-example {
  background: var(--slate);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 12px;
}
.api-example-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: rgba(0,0,0,0.2);
  color: rgba(255,255,255,0.6);
  font-size: 12px;
}
.api-example pre {
  padding: 12px;
  font-size: 12px;
  color: rgba(255,255,255,0.85);
  line-height: 1.5;
  overflow-x: auto;
}

/* === COPY BUTTON === */
.copy-btn {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border: 1px solid var(--silver);
  border-radius: 4px;
  cursor: pointer;
  background: var(--white);
  color: var(--slate-light);
  transition: all 0.15s;
}
.copy-btn:hover { border-color: var(--purple); color: var(--purple); }

/* === TOAST === */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--slate);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.2s;
  pointer-events: none;
  z-index: 200;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--silver);
  padding: 24px;
  margin-top: 80px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--slate-light);
}
.footer code {
  background: var(--cloud);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--silver);
    padding: 8px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  }
  .nav-toggle { display: flex; }

  .hero { padding: 32px 24px; }
  .hero-title { font-size: 28px; }
  .hero-stats { gap: 20px; }
  .stat-num { font-size: 24px; }

  .card-grid { grid-template-columns: 1fr; }
  .color-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .palette-strip { flex-direction: column; }

  .contrast-results { flex-direction: column; }
  .type-scale-row { grid-template-columns: 50px 1fr; }
  .type-scale-preview { display: none; }

  .spacing-row { grid-template-columns: 50px 80px 1fr; }
  .footer-inner { flex-direction: column; gap: 8px; }

  .logo-grid { grid-template-columns: 1fr; }
  .brand-switcher { order: -1; }
  .brand-pill span { display: none; }
  .brand-pill { padding: 6px 10px; }
}

/* === DARK THEME OVERRIDES === */
[data-theme="dark"] .nav {
  background: var(--bg-card);
  border-bottom-color: var(--border);
}
[data-theme="dark"] .nav-links.open {
  background: var(--bg-card);
  border-bottom-color: var(--border);
}
[data-theme="dark"] .nav-link:hover { background: var(--bg-card-hover); }
[data-theme="dark"] .nav-link.active { background: rgba(110, 44, 139, 0.2); }
[data-theme="dark"] body { background: var(--bg); color: var(--text); }
[data-theme="dark"] .overview-card,
[data-theme="dark"] .color-card,
[data-theme="dark"] .type-specimen,
[data-theme="dark"] .spacing-scale,
[data-theme="dark"] .radius-card,
[data-theme="dark"] .gradient-card,
[data-theme="dark"] .comp-card,
[data-theme="dark"] .logo-card,
[data-theme="dark"] .guideline-card,
[data-theme="dark"] .brand-font-card,
[data-theme="dark"] .api-card,
[data-theme="dark"] .contrast-checker,
[data-theme="dark"] .weight-card {
  background: var(--bg-card);
  border-color: var(--border);
}
[data-theme="dark"] .overview-card:hover,
[data-theme="dark"] .color-card:hover {
  border-color: rgba(0,184,207,0.3);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
[data-theme="dark"] .search-input {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text);
}
[data-theme="dark"] .pill {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text-muted);
}
[data-theme="dark"] .unit-toggle { background: var(--bg-card); }
[data-theme="dark"] .unit-btn.active {
  background: var(--bg-card-hover);
  color: var(--cyan);
}
[data-theme="dark"] .copy-btn {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text-muted);
}
[data-theme="dark"] .toast { background: var(--bg-card); }
[data-theme="dark"] .footer { border-top-color: var(--border); }
[data-theme="dark"] .donot-item {
  background: rgba(248,113,113,0.1);
  color: var(--text);
}
[data-theme="dark"] .comp-preview-container { background: #1A1E28; }
[data-theme="dark"] .badge.pass { background: rgba(52,211,153,0.15); color: #34D399; }
[data-theme="dark"] .badge.fail { background: rgba(248,113,113,0.15); color: #F87171; }
[data-theme="dark"] .overview-card-api { background: var(--bg-card-hover); }
[data-theme="dark"] .type-scale-row { border-bottom-color: var(--border); }
[data-theme="dark"] .spacing-row { border-bottom-color: var(--border); }
[data-theme="dark"] .mini-card { background: var(--bg-card-hover); border-color: var(--border); }

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  transition: all 0.15s;
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--purple); }

/* === BRAND SWITCHER === */
.brand-switcher {
  display: flex;
  position: relative;
  background: var(--cloud);
  border: 1px solid var(--silver);
  border-radius: 10px;
  padding: 3px;
  flex-shrink: 0;
  gap: 0;
}
.brand-pill {
  font-family: var(--font-title);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: transparent;
  color: var(--slate-light);
  transition: all 0.2s ease;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 1;
}
.brand-pill-icon {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  transition: transform 0.2s ease;
}
.brand-pill:hover { color: var(--slate); }
.brand-pill:hover .brand-pill-icon { transform: scale(1.1); }
.brand-pill.active {
  color: var(--purple);
}
.brand-pill-slider {
  position: absolute;
  top: 3px;
  left: 3px;
  height: calc(100% - 6px);
  width: calc(50% - 3px);
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1), 0 0 0 1px rgba(0,0,0,0.04);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
}
[data-active-brand="aitransformers"] .brand-pill-slider {
  transform: translateX(100%);
}

/* === BRAND CONTENT SWITCHING === */
[data-brand-content] { display: none !important; }
html[data-active-brand="visionvolve"] [data-brand-content="visionvolve"],
html:not([data-active-brand]) [data-brand-content="visionvolve"] { display: block !important; }
html[data-active-brand="aitransformers"] [data-brand-content="aitransformers"] { display: block !important; }
/* Inline elements (imgs in nav) */
html[data-active-brand="visionvolve"] img[data-brand-content="visionvolve"],
html:not([data-active-brand]) img[data-brand-content="visionvolve"] { display: inline !important; }
html[data-active-brand="aitransformers"] img[data-brand-content="aitransformers"] { display: inline !important; }

/* === AITRANSFORMERS THEME === */
[data-active-brand="aitransformers"] .brand-pill.active { color: #00BDD6; }
[data-active-brand="aitransformers"] .brand-pill-slider {
  box-shadow: 0 1px 4px rgba(0, 189, 214, 0.2), 0 0 0 1px rgba(0, 189, 214, 0.1);
}
[data-active-brand="aitransformers"] .nav-link.active { color: #00BDD6; background: rgba(0, 189, 214, 0.08); }
[data-active-brand="aitransformers"] .page-heading { color: var(--text); }
[data-active-brand="aitransformers"] .search-input:focus {
  border-color: #00BDD6;
  box-shadow: 0 0 0 3px rgba(0, 189, 214, 0.1);
}
[data-active-brand="aitransformers"] .pill.active,
[data-active-brand="aitransformers"] .pill:hover {
  background: #00BDD6;
  border-color: #00BDD6;
}
[data-active-brand="aitransformers"] .download-btn {
  background: #00BDD6;
}
[data-active-brand="aitransformers"] .download-btn:hover {
  background: #0090A0;
}
[data-active-brand="aitransformers"] .download-btn.download-secondary:hover {
  border-color: #00BDD6;
  color: #00BDD6;
}
[data-active-brand="aitransformers"] .copy-btn:hover {
  border-color: #00BDD6;
  color: #00BDD6;
}
[data-active-brand="aitransformers"] .spacing-name,
[data-active-brand="aitransformers"] .type-scale-name {
  color: #00BDD6;
}
[data-active-brand="aitransformers"] .spacing-bar {
  background: linear-gradient(90deg, #00BDD6, #0080FF);
}
[data-active-brand="aitransformers"] .radius-preview {
  background: linear-gradient(135deg, #00BDD6, #0080FF);
}
[data-active-brand="aitransformers"] .overview-card:hover {
  border-color: #00BDD6;
  box-shadow: 0 4px 20px rgba(0, 189, 214, 0.1);
}
[data-active-brand="aitransformers"] .comp-badge {
  background: rgba(0, 189, 214, 0.08);
  color: #00BDD6;
}
[data-active-brand="aitransformers"] .api-name { color: #00BDD6; }
[data-active-brand="aitransformers"] .overview-card-api code { color: #00BDD6; }
[data-active-brand="aitransformers"] .guideline-card h3 { color: #00BDD6; }
[data-active-brand="aitransformers"] .mini-bar { background: #00BDD6; }
[data-active-brand="aitransformers"] .brand-header-card {
  background: linear-gradient(135deg, #080A0C, #00BDD6);
}
[data-active-brand="aitransformers"] .theme-toggle:hover { border-color: #00BDD6; }
[data-active-brand="aitransformers"] .logo-preview.dark {
  background: linear-gradient(135deg, #080A0C, #0F1318);
}

/* Dark theme AT overrides */
[data-theme="dark"][data-active-brand="aitransformers"] .nav-link.active {
  background: rgba(0, 189, 214, 0.2);
}
[data-theme="dark"][data-active-brand="aitransformers"] .overview-card:hover,
[data-theme="dark"][data-active-brand="aitransformers"] .color-card:hover {
  border-color: rgba(0, 189, 214, 0.3);
}

/* Dark theme brand switcher */
[data-theme="dark"] .brand-switcher { background: var(--bg-card); border-color: var(--border); }
[data-theme="dark"] .brand-pill-slider {
  background: var(--bg-card-hover);
  box-shadow: 0 1px 4px rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.05);
}
[data-theme="dark"][data-active-brand="aitransformers"] .brand-pill-slider {
  box-shadow: 0 1px 4px rgba(0, 189, 214, 0.3), 0 0 0 1px rgba(0, 189, 214, 0.15);
}