/* ==========================================================================
   T00 DESIGN SYSTEM — "Elegant Glass Product Lab"
   Design tokens, primitives and component styles.
   ========================================================================== */

/* -----------------------------
   0. Fonts
   ----------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,340;0,9..144,460;0,9..144,560;1,9..144,420&family=Inter:wght@400;500;600;700;800&display=swap');

/* -----------------------------
   1. Design tokens
   ----------------------------- */
:root {
  /* Raw palette — the only hex values in the system */
  --raw-ink-950: #07080c;
  --raw-ink-900: #0b0d13;
  --raw-ink-850: #10131b;
  --raw-ink-800: #151823;
  --raw-ink-700: #1b1f2c;
  --raw-ink-600: #262b3b;
  --raw-ink-500: #3a4157;
  --raw-ink-400: #5b6478;
  --raw-ink-300: #838aa0;
  --raw-ink-200: #b2b7c9;
  --raw-ink-100: #dcdee8;
  --raw-ink-50:  #f3f4f8;
  --raw-white:   #ffffff;

  --raw-violet-700: #4d3fc9;
  --raw-violet-600: #6d5bf6;
  --raw-violet-500: #8d7dff;
  --raw-violet-400: #ab9fff;
  --raw-violet-200: #d8d2ff;

  --raw-teal-600: #1fae9c;
  --raw-teal-500: #3fd8c4;
  --raw-teal-400: #79e8da;

  --raw-amber-600: #e8a400;
  --raw-amber-500: #ffc83d;
  --raw-amber-400: #ffd978;

  --raw-green-600: #1fae6a;
  --raw-green-500: #3ddc84;

  --raw-red-600: #e8435a;
  --raw-red-500: #ff5c72;

  --raw-warn-600: #e0901a;
  --raw-warn-500: #ffb020;

  --raw-blue-700: #1f3fae;
  --raw-blue-600: #2f5bd6;
  --raw-blue-500: #4d7bf2;
  --raw-blue-400: #7fa0ff;
  --raw-navy-900: #0a1530;
  --raw-navy-800: #101f45;

  /* Brand */
  --color-primary: var(--raw-violet-600);
  --color-primary-strong: var(--raw-violet-700);
  --color-primary-soft: var(--raw-violet-400);
  --color-secondary: var(--raw-teal-500);
  --color-secondary-strong: var(--raw-teal-600);
  --color-accent-yellow: var(--raw-amber-500);
  --color-accent-yellow-strong: var(--raw-amber-600);

  /* Brand — Classes module (royal blue / deep navy) */
  --color-brand-blue: var(--raw-blue-600);
  --color-brand-blue-strong: var(--raw-blue-700);
  --color-brand-blue-soft: var(--raw-blue-400);
  --color-brand-navy: var(--raw-navy-900);
  --color-brand-navy-strong: var(--raw-navy-800);

  /* Backgrounds / surfaces (depth levels) */
  --color-background: var(--raw-ink-950);
  --color-surface: var(--raw-ink-900);
  --color-surface-primary: var(--raw-ink-850);
  --color-surface-secondary: var(--raw-ink-800);
  --color-surface-raised: var(--raw-ink-700);
  --color-surface-glass: color-mix(in srgb, var(--raw-ink-800) 62%, transparent);
  --color-surface-glass-strong: color-mix(in srgb, var(--raw-ink-800) 82%, transparent);
  --color-surface-glass-light: color-mix(in srgb, var(--raw-white) 6%, transparent);

  /* Text */
  --color-text-primary: var(--raw-ink-50);
  --color-text-secondary: var(--raw-ink-200);
  --color-text-muted: var(--raw-ink-300);
  --color-text-on-accent: var(--raw-ink-950);

  /* Borders */
  --color-border: color-mix(in srgb, var(--raw-white) 10%, transparent);
  --color-border-subtle: color-mix(in srgb, var(--raw-white) 7%, transparent);
  --color-border-strong: color-mix(in srgb, var(--raw-white) 18%, transparent);
  --color-focus-ring: var(--raw-violet-400);

  /* Semantic */
  --color-success: var(--raw-green-500);
  --color-success-strong: var(--raw-green-600);
  --color-warning: var(--raw-warn-500);
  --color-warning-strong: var(--raw-warn-600);
  --color-error: var(--raw-red-500);
  --color-error-strong: var(--raw-red-600);

  /* Overlay */
  --color-scrim: color-mix(in srgb, var(--raw-ink-950) 72%, transparent);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 26px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px color-mix(in srgb, var(--raw-ink-950) 40%, transparent),
               0 1px 1px color-mix(in srgb, var(--raw-ink-950) 20%, transparent);
  --shadow-md: 0 8px 24px -8px color-mix(in srgb, var(--raw-ink-950) 60%, transparent),
               0 2px 8px -2px color-mix(in srgb, var(--raw-ink-950) 40%, transparent);
  --shadow-lg: 0 24px 48px -16px color-mix(in srgb, var(--raw-ink-950) 70%, transparent),
               0 8px 24px -8px color-mix(in srgb, var(--raw-ink-950) 50%, transparent);
  --shadow-xl: 0 40px 80px -24px color-mix(in srgb, var(--raw-ink-950) 80%, transparent),
               0 16px 40px -12px color-mix(in srgb, var(--raw-ink-950) 60%, transparent);
  --shadow-glow-primary: 0 0 0 1px color-mix(in srgb, var(--color-primary) 40%, transparent),
                         0 12px 32px -8px color-mix(in srgb, var(--color-primary) 55%, transparent);
  --shadow-glow-yellow: 0 10px 30px -6px color-mix(in srgb, var(--color-accent-yellow) 55%, transparent);

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 80px;

  /* Typography */
  --font-display: 'Fraunces', 'Iowan Old Style', serif;
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --fs-display: clamp(2.6rem, 2rem + 3vw, 4.6rem);
  --fs-h1: clamp(2rem, 1.6rem + 1.6vw, 3rem);
  --fs-h2: clamp(1.5rem, 1.3rem + 0.9vw, 2.1rem);
  --fs-h3: clamp(1.2rem, 1.1rem + 0.5vw, 1.5rem);
  --fs-body-lg: 1.125rem;
  --fs-body: 1rem;
  --fs-body-sm: 0.875rem;
  --fs-caption: 0.8125rem;
  --fs-label: 0.8125rem;
  --fs-overline: 0.75rem;

  --lh-tight: 1.08;
  --lh-snug: 1.25;
  --lh-normal: 1.5;
  --lh-relaxed: 1.65;

  --ls-tight: -0.03em;
  --ls-normal: 0;
  --ls-wide: 0.08em;
  --ls-wider: 0.14em;

  /* Motion */
  --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-micro: 150ms;
  --dur-normal: 200ms;
  --dur-overlay: 300ms;
  --dur-entrance: 400ms;

  /* Control sizing */
  --control-h-sm: 32px;
  --control-h-md: 40px;
  --control-h-lg: 48px;
  --container-max: 1280px;
  --header-h: 72px;
}

/* -----------------------------
   2. Reset
   ----------------------------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

html, body { height: 100%; }
/* App pages routinely scroll taller than the viewport by design; keep that
   scrollable everywhere but hide the browser's default track so it never
   competes visually with in-app surfaces (sidebar nav, cards, etc). */
html, body { scrollbar-width: none; -ms-overflow-style: none; }
html::-webkit-scrollbar, body::-webkit-scrollbar { display: none; }
body {
  background: var(--color-background);
  color: var(--color-text-primary);
  font-family: var(--font-ui);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* -----------------------------
   3. Ambient background
   ----------------------------- */
.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: var(--color-background);
}
.atmosphere::before,
.atmosphere::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(64px);
  opacity: 0.55;
  will-change: transform;
}
.atmosphere::before {
  width: 38vw;
  height: 38vw;
  top: -12vw;
  right: -10vw;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 55%, transparent), transparent 70%);
}
.atmosphere::after {
  width: 32vw;
  height: 32vw;
  bottom: -14vw;
  left: -8vw;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-secondary) 40%, transparent), transparent 70%);
}
.atmosphere__grid {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(color-mix(in srgb, var(--raw-white) 4%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--raw-white) 4%, transparent) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 10%, transparent 75%);
}
.atmosphere__field {
  position: absolute;
  width: 22vw;
  height: 22vw;
  border-radius: 50%;
  filter: blur(56px);
  opacity: 0.3;
  top: 30%;
  left: 40%;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-accent-yellow) 35%, transparent), transparent 70%);
}

/* -----------------------------
   4. Layout utilities
   ----------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.section {
  position: relative;
  padding-block: var(--space-9);
  scroll-margin-top: calc(var(--header-h) + var(--space-5));
}
.section--tight { padding-block: var(--space-8); }
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border) 20%, var(--color-border) 80%, transparent);
  margin-block: var(--space-2);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-overline);
  font-weight: 600;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-yellow);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-accent-yellow) 20%, transparent);
}
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-5);
  margin-bottom: var(--space-7);
}
.section-head__title {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 560;
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-tight);
  margin-top: var(--space-2);
}
.section-head__text {
  max-width: 46ch;
  color: var(--color-text-secondary);
  font-size: var(--fs-body-lg);
  line-height: var(--lh-relaxed);
}
.subhead {
  font-size: var(--fs-h3);
  font-weight: 600;
  letter-spacing: var(--ls-tight);
  margin-bottom: var(--space-4);
}
.glass-panel {
  background: var(--color-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -60px;
  background: var(--color-surface-raised);
  color: var(--color-text-primary);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--dur-normal) var(--ease-premium);
  border: 1px solid var(--color-border);
}
.skip-link:focus { top: var(--space-4); }

/* -----------------------------
   5. Header / Navigation
   ----------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}
.site-header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  background: var(--color-surface-glass-strong);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  letter-spacing: var(--ls-normal);
}
.brand__mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 6px color-mix(in srgb, var(--color-primary) 45%, transparent));
  transition: transform var(--dur-normal) var(--ease-premium);
}
.brand:hover .brand__mark { transform: rotate(-6deg) scale(1.06); }
.brand__mark-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.brand__name { font-family: var(--font-display); font-weight: 560; font-size: 1.05rem; letter-spacing: var(--ls-tight); }
.brand__name span { font-style: italic; font-weight: 460; color: var(--color-text-muted); }

.primary-nav { display: flex; }
.primary-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.primary-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-body-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-pill);
  transition: color var(--dur-normal) var(--ease-premium);
}
.primary-nav__link:hover { color: var(--color-text-primary); }
.primary-nav__link.is-active { color: var(--color-text-primary); }
.primary-nav__link.is-active::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-surface-glass-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  z-index: -1;
}

.header-actions { display: flex; align-items: center; gap: var(--space-2); }
.nav-toggle {
  display: none;
  width: var(--control-h-md);
  height: var(--control-h-md);
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface-glass-light);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle__bars { position: relative; width: 16px; height: 10px; }
.nav-toggle__bars span {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--dur-normal) var(--ease-premium), opacity var(--dur-normal) var(--ease-premium);
}
.nav-toggle__bars span:nth-child(1) { top: 0; }
.nav-toggle__bars span:nth-child(2) { top: 4px; }
.nav-toggle__bars span:nth-child(3) { top: 8px; }

/* -----------------------------
   6. Hero
   ----------------------------- */
.hero {
  padding-top: var(--space-9);
  padding-bottom: var(--space-8);
}
@keyframes heroIn {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero__inner > * {
  opacity: 0;
  animation: heroIn 800ms var(--ease-premium) forwards;
}
.hero__eyebrow-row { animation-delay: 60ms; }
.hero__heading { animation-delay: 160ms; }
.hero__text { animation-delay: 280ms; }
.hero__pills { animation-delay: 400ms; }
.hero__stats { animation-delay: 500ms; }
.hero__inner > .glass-panel { animation-delay: 620ms; }
.hero__heading em {
  background-size: 200% auto;
  animation: heroGradientShift 7s ease-in-out 900ms infinite;
}
@keyframes heroGradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
@media (prefers-reduced-motion: reduce) {
  .hero__inner > * { opacity: 1; animation: none; }
  .hero__heading em { animation: none; }
}
.hero__inner {
  display: grid;
  gap: var(--space-6);
}
.hero__eyebrow-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.hero__heading {
  font-family: var(--font-display);
  font-weight: 560;
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  max-width: 16ch;
  margin-top: var(--space-4);
}
.hero__heading em {
  font-style: italic;
  background: linear-gradient(120deg, var(--color-primary-soft), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__text {
  max-width: 54ch;
  font-size: var(--fs-body-lg);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
  margin-top: var(--space-4);
}
.hero__pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.hero__pill {
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface-glass-light);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: transform var(--dur-normal) var(--ease-premium), border-color var(--dur-normal) var(--ease-premium), background var(--dur-normal) var(--ease-premium);
  cursor: pointer;
}
.hero__pill:hover {
  transform: translateY(-2px);
  border-color: var(--color-border-strong);
  background: color-mix(in srgb, var(--color-primary) 14%, var(--color-surface-glass-light));
}
.hero__stats {
  margin-top: var(--space-8);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.stat-card {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(10px);
}
.stat-card__value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 560;
}
.stat-card__label {
  margin-top: var(--space-1);
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}

/* -----------------------------
   7. Color system
   ----------------------------- */
.color-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: var(--space-5);
}
.swatch {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface-glass);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--dur-normal) var(--ease-premium), box-shadow var(--dur-normal) var(--ease-premium), border-color var(--dur-normal) var(--ease-premium);
}
.swatch:hover, .swatch:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-strong);
}
.swatch__fill {
  height: 104px;
  position: relative;
}
.swatch__body {
  padding: var(--space-4);
}
.swatch__name {
  font-weight: 600;
  font-size: var(--fs-body);
}
.swatch__purpose {
  margin-top: 2px;
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}
.swatch__var {
  margin-top: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  padding: var(--space-1) var(--space-2);
  background: color-mix(in srgb, var(--raw-white) 6%, transparent);
  border-radius: var(--radius-sm);
}
.swatch__copied {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  font-size: var(--fs-caption);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--color-success);
  color: var(--color-text-on-accent);
  font-weight: 600;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--dur-normal) var(--ease-premium), transform var(--dur-normal) var(--ease-premium);
  pointer-events: none;
}
.swatch.is-copied .swatch__copied { opacity: 1; transform: translateY(0); }

/* -----------------------------
   8. Typography specimens
   ----------------------------- */
.type-list { display: flex; flex-direction: column; }
.type-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-6);
  padding-block: var(--space-6);
  border-top: 1px solid var(--color-border-subtle);
  align-items: baseline;
}
.type-row:first-child { border-top: none; }
.type-row__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.type-row__label {
  font-size: var(--fs-overline);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-accent-yellow);
  font-weight: 700;
}
.type-row__specs {
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}
.type-row__sample { color: var(--color-text-primary); }
.sample--display { font-family: var(--font-display); font-size: var(--fs-display); font-weight: 560; line-height: var(--lh-tight); letter-spacing: var(--ls-tight); }
.sample--h1 { font-family: var(--font-display); font-size: var(--fs-h1); font-weight: 560; line-height: var(--lh-tight); }
.sample--h2 { font-family: var(--font-display); font-size: var(--fs-h2); font-weight: 500; line-height: var(--lh-snug); }
.sample--h3 { font-size: var(--fs-h3); font-weight: 700; line-height: var(--lh-snug); }
.sample--body-lg { font-size: var(--fs-body-lg); color: var(--color-text-secondary); line-height: var(--lh-relaxed); }
.sample--body { font-size: var(--fs-body); color: var(--color-text-secondary); line-height: var(--lh-normal); }
.sample--body-sm { font-size: var(--fs-body-sm); color: var(--color-text-muted); }
.sample--caption { font-size: var(--fs-caption); color: var(--color-text-muted); }
.sample--label { font-size: var(--fs-label); font-weight: 600; text-transform: uppercase; letter-spacing: var(--ls-wide); color: var(--color-text-secondary); }
.sample--button { font-size: var(--fs-body-sm); font-weight: 600; }
.sample--overline { font-size: var(--fs-overline); font-weight: 700; letter-spacing: var(--ls-wider); text-transform: uppercase; color: var(--color-text-muted); }

/* -----------------------------
   9. Spacing scale
   ----------------------------- */
.spacing-list { display: flex; flex-direction: column; gap: var(--space-3); }
.spacing-row { display: flex; align-items: center; gap: var(--space-5); }
.spacing-row__token { width: 90px; font-family: 'SFMono-Regular', Consolas, monospace; font-size: var(--fs-caption); color: var(--color-text-secondary); }
.spacing-row__bar {
  height: 10px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  opacity: 0.85;
}
.spacing-row__px { font-size: var(--fs-caption); color: var(--color-text-muted); width: 56px; text-align: right; }

/* -----------------------------
   10. Radius + elevation
   ----------------------------- */
.foundation-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
}
.radius-row { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.radius-demo {
  width: 84px; height: 84px;
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border);
  display: grid; place-items: center;
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}
.elevation-row { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.elevation-demo {
  width: 110px; height: 90px;
  background: var(--color-surface-secondary);
  border-radius: var(--radius-md);
  display: grid; place-items: center;
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}

/* -----------------------------
   11. Buttons
   ----------------------------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: var(--control-h-md);
  padding-inline: var(--space-5);
  border-radius: var(--radius-pill);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-micro) var(--ease-premium),
              box-shadow var(--dur-normal) var(--ease-premium),
              background var(--dur-normal) var(--ease-premium),
              border-color var(--dur-normal) var(--ease-premium),
              color var(--dur-normal) var(--ease-premium);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn:disabled, .btn.is-disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }
.btn--sm { height: var(--control-h-sm); padding-inline: var(--space-4); font-size: var(--fs-caption); }
.btn--lg { height: var(--control-h-lg); padding-inline: var(--space-6); font-size: var(--fs-body); }

.btn--primary {
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-strong));
  color: var(--raw-white);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { box-shadow: var(--shadow-glow-primary); transform: translateY(-1px); }

.btn--secondary {
  background: var(--color-surface-glass-light);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}
.btn--secondary:hover { border-color: var(--color-border-strong); transform: translateY(-1px); background: color-mix(in srgb, var(--color-secondary) 16%, var(--color-surface-glass-light)); }

.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
}
.btn--ghost:hover { color: var(--color-text-primary); background: var(--color-surface-glass-light); }

.btn--destructive {
  background: color-mix(in srgb, var(--color-error) 16%, transparent);
  color: var(--color-error);
  border-color: color-mix(in srgb, var(--color-error) 36%, transparent);
}
.btn--destructive:hover { background: var(--color-error); color: var(--raw-white); }

.btn--accent {
  background: linear-gradient(145deg, var(--color-accent-yellow), var(--color-accent-yellow-strong));
  color: var(--color-text-on-accent);
  box-shadow: var(--shadow-sm);
}
.btn--accent:hover { box-shadow: var(--shadow-glow-yellow); transform: translateY(-1px); }
.btn--accent:active { transform: translateY(0) scale(0.99); }
.btn--accent:disabled { background: var(--color-surface-glass-light); color: var(--color-text-muted); box-shadow: none; }

.btn--icon {
  width: var(--control-h-md); height: var(--control-h-md); padding: 0; border-radius: 50%;
  background: var(--color-surface-glass-light); border-color: var(--color-border);
}
.btn--text { background: transparent; padding-inline: var(--space-1); height: auto; color: var(--color-primary-soft); }
.btn--text:hover { color: var(--color-secondary); }

.btn.is-loading { color: transparent !important; }
.btn__spinner {
  position: absolute;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--raw-white) 35%, transparent);
  border-top-color: var(--raw-white);
  animation: spin 0.7s linear infinite;
  display: none;
}
.btn.is-loading .btn__spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.btn.is-success { background: var(--color-success); color: var(--color-text-on-accent); }

.state-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-4);
  align-items: start;
}
.state-strip__item { display: flex; flex-direction: column; align-items: center; gap: var(--space-3); }
.state-strip__label { font-size: var(--fs-caption); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: var(--ls-wide); }

/* -----------------------------
   12. Playground
   ----------------------------- */
.playground {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-7);
}
.playground__controls { display: flex; flex-direction: column; gap: var(--space-5); }
.playground__field { display: flex; flex-direction: column; gap: var(--space-2); }
.playground__preview {
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--color-primary) 12%, transparent), transparent 55%),
    var(--color-surface-primary);
  border: 1px solid var(--color-border-subtle);
  display: grid;
  place-items: center;
  min-height: 260px;
  padding: var(--space-6);
}

/* -----------------------------
   13. Inputs
   ----------------------------- */
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field__label {
  font-size: var(--fs-label);
  font-weight: 600;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.field__label .req { color: var(--color-error); }
.field__hint { font-size: var(--fs-caption); color: var(--color-text-muted); }
.field__error { font-size: var(--fs-caption); color: var(--color-error); display: flex; align-items: center; gap: var(--space-1); }
.field__success { font-size: var(--fs-caption); color: var(--color-success); display: flex; align-items: center; gap: var(--space-1); }

.input, .textarea, .select {
  width: 100%;
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0 var(--space-4);
  height: var(--control-h-md);
  color: var(--color-text-primary);
  transition: border-color var(--dur-normal) var(--ease-premium), box-shadow var(--dur-normal) var(--ease-premium), background var(--dur-normal) var(--ease-premium);
}
.textarea { height: auto; padding-block: var(--space-3); min-height: 104px; resize: vertical; scrollbar-width: none; -ms-overflow-style: none; }
.textarea::-webkit-scrollbar { display: none; }
.input::placeholder, .textarea::placeholder { color: var(--color-text-muted); }
.input:hover, .textarea:hover, .select:hover { border-color: var(--color-border-strong); }
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--color-primary-soft);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 30%, transparent);
}
.input:disabled, .textarea:disabled, .select:disabled {
  opacity: 0.45; cursor: not-allowed; background: var(--color-surface-primary);
}
.field.is-error .input, .field.is-error .textarea { border-color: var(--color-error); }
.field.is-error .input:focus { box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-error) 28%, transparent); }
.field.is-success .input { border-color: var(--color-success); }

.input-wrap { position: relative; }
.input-wrap .input { padding-left: var(--space-7); }
.input-wrap__icon {
  position: absolute; left: var(--space-4); top: 50%; transform: translateY(-50%);
  color: var(--color-text-muted); width: 16px; height: 16px;
}
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%), linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%); background-position: calc(100% - 20px) center, calc(100% - 15px) center; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: var(--space-7); }

.check-row { display: flex; align-items: center; gap: var(--space-3); }
.checkbox, .radio {
  appearance: none;
  width: 20px; height: 20px;
  border: 1.5px solid var(--color-border-strong);
  background: var(--color-surface-secondary);
  flex-shrink: 0;
  display: grid; place-items: center;
  cursor: pointer;
  transition: background var(--dur-normal) var(--ease-premium), border-color var(--dur-normal) var(--ease-premium);
}
.checkbox { border-radius: 6px; }
.radio { border-radius: 50%; }
.checkbox::after {
  content: ''; width: 10px; height: 6px;
  border-left: 2px solid var(--color-text-on-accent); border-bottom: 2px solid var(--color-text-on-accent);
  transform: rotate(-45deg) scale(0); transition: transform var(--dur-micro) var(--ease-premium);
}
.radio::after {
  content: ''; width: 9px; height: 9px; border-radius: 50%; background: var(--color-text-on-accent);
  transform: scale(0); transition: transform var(--dur-micro) var(--ease-premium);
}
.checkbox:checked, .radio:checked { background: var(--color-primary); border-color: var(--color-primary); }
.checkbox:checked::after { transform: rotate(-45deg) scale(1); }
.radio:checked::after { transform: scale(1); }
.checkbox:disabled, .radio:disabled { opacity: 0.4; cursor: not-allowed; }
.check-row label { font-size: var(--fs-body-sm); color: var(--color-text-secondary); cursor: pointer; }

.toggle { position: relative; width: 44px; height: 26px; flex-shrink: 0; }
.toggle input { position: absolute; inset: 0; opacity: 0; cursor: pointer; margin: 0; }
.toggle__track {
  position: absolute; inset: 0; border-radius: var(--radius-pill);
  background: var(--color-surface-raised); border: 1px solid var(--color-border);
  transition: background var(--dur-normal) var(--ease-premium);
}
.toggle__thumb {
  position: absolute; top: 2px; left: 2px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--color-text-primary);
  transition: transform var(--dur-normal) var(--ease-premium);
  box-shadow: var(--shadow-sm);
}
.toggle input:checked + .toggle__track { background: var(--color-primary); border-color: var(--color-primary); }
.toggle input:checked + .toggle__track .toggle__thumb { transform: translateX(18px); }
.toggle input:focus-visible + .toggle__track { outline: 2px solid var(--color-focus-ring); outline-offset: 3px; }

.input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-6);
}

/* -----------------------------
   14. Cards
   ----------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-5);
}
.card {
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-subtle);
  transition: transform var(--dur-normal) var(--ease-premium), box-shadow var(--dur-normal) var(--ease-premium), border-color var(--dur-normal) var(--ease-premium);
}
.card__eyebrow { font-size: var(--fs-caption); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: var(--ls-wide); }
.card__title { font-weight: 600; margin-top: var(--space-1); }
.card__text { margin-top: var(--space-2); font-size: var(--fs-body-sm); color: var(--color-text-secondary); line-height: var(--lh-relaxed); }
.card__footer { margin-top: var(--space-5); display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }

.card--glass {
  background: var(--color-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.card--interactive { cursor: pointer; }
.card--interactive:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--color-border-strong); }
.card--selected { border-color: var(--color-primary); box-shadow: var(--shadow-glow-primary); }
.card--disabled { opacity: 0.45; pointer-events: none; }
.card--status { border-left: 3px solid var(--color-success); }
.card--action { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.card--floating { box-shadow: var(--shadow-xl); }

/* ---------- Feature list (icon + title + description rows) ---------- */
.feature-list { display: flex; flex-direction: column; }
.feature-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border-subtle);
  opacity: 0;
  transform: translateY(10px);
  animation: featureIn var(--dur-entrance) var(--ease-premium) forwards;
  transition: background var(--dur-normal) var(--ease-premium);
}
.feature-row:last-child { border-bottom: none; }
.feature-row:hover { background: var(--color-surface-glass-light); border-radius: var(--radius-md); }
.feature-row__icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--color-success) 16%, transparent);
  color: var(--color-success);
}
.feature-row__icon svg { width: 18px; height: 18px; }
.feature-row__title { font-weight: 600; color: var(--color-text-primary); }
.feature-row__text { margin-top: 2px; font-size: var(--fs-body-sm); color: var(--color-text-secondary); line-height: var(--lh-relaxed); }
@keyframes featureIn { to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) {
  .feature-row { opacity: 1; transform: none; animation: none; }
}

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--fs-caption);
  font-weight: 600;
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge--success { background: color-mix(in srgb, var(--color-success) 16%, transparent); color: var(--color-success); }
.badge--warning { background: color-mix(in srgb, var(--color-warning) 18%, transparent); color: var(--color-warning); }
.badge--error { background: color-mix(in srgb, var(--color-error) 16%, transparent); color: var(--color-error); }
.badge--neutral { background: var(--color-surface-glass-light); color: var(--color-text-secondary); }
.badge--primary { background: color-mix(in srgb, var(--color-primary) 18%, transparent); color: var(--color-primary-soft); }
.badge--accent { background: color-mix(in srgb, var(--color-accent-yellow) 22%, transparent); color: var(--color-accent-yellow); }

/* -----------------------------
   15. Tabs
   ----------------------------- */
.tabs__list {
  display: inline-flex;
  gap: var(--space-1);
  padding: 4px;
  background: var(--color-surface-secondary);
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  position: relative;
}
.tabs__tab {
  position: relative;
  z-index: 1;
  appearance: none;
  background: none;
  border: none;
  padding: var(--space-2) var(--space-5);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: color var(--dur-normal) var(--ease-premium);
}
.tabs__tab[aria-selected="true"] { color: var(--color-text-on-accent); }
.tabs__tab:disabled { opacity: 0.4; cursor: not-allowed; }
.tabs__indicator {
  position: absolute;
  top: 4px; bottom: 4px;
  border-radius: var(--radius-pill);
  background: linear-gradient(145deg, var(--color-primary), var(--color-secondary));
  transition: transform var(--dur-normal) var(--ease-premium), width var(--dur-normal) var(--ease-premium);
  z-index: 0;
}
.tabs__panels { margin-top: var(--space-6); }
.tabs__panel { display: none; animation: fadeIn var(--dur-normal) var(--ease-premium); }
.tabs__panel[data-active="true"] { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* -----------------------------
   16. Filters
   ----------------------------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border-subtle);
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-primary) 16%, transparent);
  color: var(--color-primary-soft);
  font-size: var(--fs-caption);
  font-weight: 600;
  animation: chipIn var(--dur-normal) var(--ease-premium);
}
@keyframes chipIn { from { opacity: 0; transform: scale(0.85); } to { opacity: 1; transform: scale(1); } }
.chip__remove {
  width: 16px; height: 16px; border-radius: 50%;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--raw-white) 14%, transparent);
  cursor: pointer;
}
.filter-dropdown { position: relative; }
.filter-dropdown__panel {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 0;
  min-width: 220px;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  z-index: 20;
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  pointer-events: none;
  transition: opacity var(--dur-normal) var(--ease-premium), transform var(--dur-normal) var(--ease-premium);
}
.filter-dropdown.is-open .filter-dropdown__panel { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.filter-dropdown__option {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--fs-body-sm);
  cursor: pointer;
}
.filter-dropdown__option:hover { background: var(--color-surface-glass-light); }

/* -----------------------------
   17. Tables
   ----------------------------- */
.table-wrap {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  overflow: hidden;
  background: var(--color-surface-primary);
}
.table { width: 100%; border-collapse: collapse; }
.table th {
  text-align: left;
  font-size: var(--fs-caption);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--color-text-muted);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-secondary);
  font-weight: 600;
}
.table td {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border-subtle);
  font-size: var(--fs-body-sm);
}
.table tbody tr { transition: background var(--dur-normal) var(--ease-premium); }
.table tbody tr:hover { background: var(--color-surface-glass-light); }
.table .cell-primary { color: var(--color-text-primary); font-weight: 600; }
.table .cell-muted { color: var(--color-text-muted); }

.table-card { display: none; }

/* table loading skeleton row */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-secondary);
  border-radius: var(--radius-sm);
}
.skeleton::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, var(--color-surface-glass-light), transparent);
  transform: translateX(-100%);
  animation: shimmer 1.6s infinite;
}
@keyframes shimmer { to { transform: translateX(100%); } }
.skeleton--text { height: 12px; width: 70%; }
.skeleton--title { height: 14px; width: 40%; }
.skeleton--avatar { width: 36px; height: 36px; border-radius: 50%; }
.skeleton--button { height: var(--control-h-md); width: 96px; border-radius: var(--radius-pill); }
.skeleton--card { height: 140px; border-radius: var(--radius-lg); }

/* -----------------------------
   18. Modal
   ----------------------------- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: var(--color-scrim);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  z-index: 400;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-overlay) var(--ease-premium);
}
.modal-backdrop.is-open { opacity: 1; pointer-events: auto; }
.modal {
  width: 100%;
  max-width: 440px;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-6);
  transform: translateY(24px) scale(0.97);
  opacity: 0;
  transition: transform var(--dur-overlay) var(--ease-premium), opacity var(--dur-overlay) var(--ease-premium);
}
.modal-backdrop.is-open .modal { transform: translateY(0) scale(1); opacity: 1; }
.modal__icon {
  width: 48px; height: 48px; border-radius: 50%;
  display: grid; place-items: center;
  margin-bottom: var(--space-4);
}
.modal__icon--info { background: color-mix(in srgb, var(--color-primary) 18%, transparent); color: var(--color-primary-soft); }
.modal__icon--danger { background: color-mix(in srgb, var(--color-error) 18%, transparent); color: var(--color-error); }
.modal__icon--success { background: color-mix(in srgb, var(--color-success) 18%, transparent); color: var(--color-success); }
.modal__icon--error { background: color-mix(in srgb, var(--color-error) 18%, transparent); color: var(--color-error); }
.modal__title { font-size: var(--fs-h3); font-weight: 700; }
.modal__text { margin-top: var(--space-2); color: var(--color-text-secondary); font-size: var(--fs-body-sm); line-height: var(--lh-relaxed); }
.modal__actions { margin-top: var(--space-6); display: flex; justify-content: flex-end; gap: var(--space-3); }
.modal__close {
  position: absolute; top: var(--space-4); right: var(--space-4);
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--color-surface-glass-light);
  border: 1px solid var(--color-border-subtle);
  cursor: pointer;
}
.modal { position: relative; }

/* -----------------------------
   19. Drawer
   ----------------------------- */
.drawer-backdrop {
  position: fixed; inset: 0;
  background: var(--color-scrim);
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-overlay) var(--ease-premium);
}
.drawer-backdrop.is-open { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed;
  top: 0; right: 0;
  height: 100%;
  width: min(380px, 92vw);
  background: var(--color-surface-raised);
  border-left: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  z-index: 310;
  transform: translateX(100%);
  transition: transform var(--dur-overlay) var(--ease-premium);
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
}
.drawer.is-open { transform: translateX(0); }
.drawer__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-5); }
.drawer__title { font-weight: 700; font-size: var(--fs-h3); }
.drawer__body { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: var(--space-5); }

.nav-drawer {
  position: fixed; top: 0; left: 0;
  height: 100%;
  width: min(320px, 86vw);
  background: var(--color-surface-raised);
  border-right: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  z-index: 310;
  transform: translateX(-100%);
  transition: transform var(--dur-overlay) var(--ease-premium);
  padding: var(--space-6);
  display: none;
  flex-direction: column;
  gap: var(--space-5);
}
.nav-drawer.is-open { transform: translateX(0); }
.nav-drawer__link { padding: var(--space-3) var(--space-2); font-weight: 600; border-radius: var(--radius-md); }
.nav-drawer__link:hover, .nav-drawer__link.is-active { background: var(--color-surface-glass-light); }

/* -----------------------------
   20. Empty / Error / Locked states
   ----------------------------- */
.state-panel {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  border-radius: var(--radius-xl);
  border: 1px dashed var(--color-border);
  background: var(--color-surface-glass);
}
.state-panel__icon {
  width: 56px; height: 56px; margin: 0 auto var(--space-4);
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--color-surface-glass-light);
  color: var(--color-text-muted);
}
.state-panel__title { font-weight: 700; font-size: var(--fs-h3); }
.state-panel__text { margin-top: var(--space-2); color: var(--color-text-secondary); max-width: 40ch; margin-inline: auto; font-size: var(--fs-body-sm); }
.state-panel__action { margin-top: var(--space-5); }
.state-panel--error .state-panel__icon { color: var(--color-error); background: color-mix(in srgb, var(--color-error) 16%, transparent); }
.state-panel--locked .state-panel__icon { color: var(--color-warning); background: color-mix(in srgb, var(--color-warning) 16%, transparent); }

.inline-error {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-error) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-error) 30%, transparent);
  color: var(--color-error);
  font-size: var(--fs-body-sm);
}
.inline-success {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-success) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-success) 30%, transparent);
  color: var(--color-success);
  font-size: var(--fs-body-sm);
}
.inline-warning {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-warning) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-warning) 30%, transparent);
  color: var(--color-warning);
  font-size: var(--fs-body-sm);
}

.locked-card { position: relative; overflow: hidden; }
.locked-card::before {
  content: '';
  position: absolute; inset: 0;
  backdrop-filter: blur(3px);
  background: color-mix(in srgb, var(--color-surface-primary) 55%, transparent);
}
.locked-card__badge {
  position: absolute; top: var(--space-4); right: var(--space-4);
  z-index: 2;
}

/* -----------------------------
   21. Toasts
   ----------------------------- */
.toast-region {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  z-index: 500;
  width: min(360px, calc(100vw - 2 * var(--space-5)));
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  animation: toastIn var(--dur-entrance) var(--ease-premium);
}
.toast.is-leaving { animation: toastOut var(--dur-normal) var(--ease-premium) forwards; }
@keyframes toastIn { from { opacity: 0; transform: translateY(16px) scale(0.96); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(12px) scale(0.96); } }
.toast__icon { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; }
.toast--success .toast__icon { color: var(--color-success); }
.toast--error .toast__icon { color: var(--color-error); }
.toast--warning .toast__icon { color: var(--color-warning); }
.toast--info .toast__icon { color: var(--color-primary-soft); }
.toast__title { font-weight: 700; font-size: var(--fs-body-sm); }
.toast__text { font-size: var(--fs-caption); color: var(--color-text-secondary); margin-top: 2px; }
.toast__close { margin-left: auto; cursor: pointer; color: var(--color-text-muted); }

/* -----------------------------
   22. Responsive preview frame
   ----------------------------- */
.preview-controls { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-6); }
.preview-stage {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface-glass);
  padding: var(--space-7) var(--space-5);
  display: flex;
  justify-content: center;
  overflow-x: auto;
}
.device-frame {
  width: 1440px;
  max-width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface-primary);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: width var(--dur-overlay) var(--ease-premium);
}
.device-frame[data-size="768"] { width: 768px; }
.device-frame[data-size="1024"] { width: 1024px; }
.device-frame[data-size="360"] { width: 360px; }
.device-frame__bar {
  height: 34px;
  display: flex; align-items: center; gap: 6px;
  padding-inline: var(--space-4);
  background: var(--color-surface-secondary);
  border-bottom: 1px solid var(--color-border-subtle);
}
.device-frame__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-border-strong); }
.device-frame__body { padding: var(--space-5); }
.device-frame__label {
  text-align: center;
  margin-top: var(--space-3);
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}

/* -----------------------------
   23. Final gallery
   ----------------------------- */
.gallery-mock {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface-primary);
  box-shadow: var(--shadow-xl);
}
.gallery-mock__top {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-border-subtle);
  background: var(--color-surface-glass);
}
.gallery-mock__grid {
  display: grid;
  grid-template-columns: 220px 1fr;
}
.gallery-mock__side {
  padding: var(--space-5);
  border-right: 1px solid var(--color-border-subtle);
  display: flex; flex-direction: column; gap: var(--space-2);
}
.gallery-mock__main { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-6); }
.gallery-mock__row { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }

/* -----------------------------
   24. Footer
   ----------------------------- */
.site-footer {
  padding-block: var(--space-7);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--fs-caption);
}

/* -----------------------------
   25. Floating action button
   ----------------------------- */
.fab {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-accent-yellow);
  color: var(--color-text-on-accent);
  display: none;
  align-items: center;
  justify-content: center;
  border: none;
  box-shadow: var(--shadow-glow-yellow), var(--shadow-lg);
  cursor: pointer;
  z-index: 200;
  transition: transform var(--dur-micro) var(--ease-premium), box-shadow var(--dur-normal) var(--ease-premium), background var(--dur-normal) var(--ease-premium);
}
.fab:hover { transform: translateY(-3px); background: var(--color-accent-yellow-strong); }
.fab:active { transform: translateY(0) scale(0.94); }
.fab:focus-visible { outline: 2px solid var(--color-focus-ring); outline-offset: 4px; }

/* -----------------------------
   26. Scroll reveal
   ----------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms var(--ease-premium), transform 500ms var(--ease-premium);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal--scale { transform: translateY(12px) scale(0.98); }
.reveal--scale.is-visible { transform: translateY(0) scale(1); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* -----------------------------
   27. Glass / surface lab
   ----------------------------- */
.surface-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-5);
}
.surface-demo {
  position: relative;
  height: 168px;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  transition: transform var(--dur-normal) var(--ease-premium);
}
.surface-demo:hover { transform: translateY(-4px); }
.surface-demo__name { font-weight: 700; }
.surface-demo__spec { font-size: var(--fs-caption); color: var(--color-text-muted); margin-top: 2px; }
.surface-demo--solid { background: var(--color-surface-secondary); border: 1px solid var(--color-border); }
.surface-demo--subtle { background: color-mix(in srgb, var(--color-surface-secondary) 60%, transparent); border: 1px solid var(--color-border-subtle); }
.surface-demo--glass {
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.surface-demo--elevated-glass {
  background: var(--color-surface-glass-strong);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-md);
}
.surface-demo--floating {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
}
.surface-demo__orb {
  position: absolute;
  top: -30px; right: -30px;
  width: 100px; height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 55%, transparent), transparent 70%);
  filter: blur(18px);
}

/* -----------------------------
   28. Icon library
   ----------------------------- */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: var(--space-3);
}
.icon-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-2);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface-primary);
  color: var(--color-text-secondary);
  transition: transform var(--dur-normal) var(--ease-premium), color var(--dur-normal) var(--ease-premium), border-color var(--dur-normal) var(--ease-premium);
}
.icon-tile:hover { transform: translateY(-3px); color: var(--color-primary-soft); border-color: var(--color-border-strong); }
.icon-tile svg { width: 20px; height: 20px; }
.icon-tile__label { font-size: var(--fs-caption); color: var(--color-text-muted); }
.icon-strip { display: flex; align-items: center; gap: var(--space-6); flex-wrap: wrap; }
.icon-strip__item { display: flex; flex-direction: column; align-items: center; gap: var(--space-2); color: var(--color-text-secondary); }
.icon-strip svg { display: block; }
.icon--sm svg, .icon--sm { width: 14px; height: 14px; }
.icon--md svg, .icon--md { width: 20px; height: 20px; }
.icon--lg svg, .icon--lg { width: 28px; height: 28px; }
.icon--disabled { opacity: 0.35; }

/* -----------------------------
   29. Badges (extended)
   ----------------------------- */
.badge--outline { background: transparent; border: 1px solid currentColor; }
.badge--icon { gap: 4px; }
.badge--icon::before { display: none; }
.badge--icon svg { width: 12px; height: 12px; }
.badge-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* -----------------------------
   30. Avatars
   ----------------------------- */
.avatar {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-on-accent);
  font-weight: 700;
  font-size: var(--fs-caption);
  flex-shrink: 0;
  overflow: hidden;
  border: 2px solid var(--color-surface-primary);
}
.avatar--sm { width: 28px; height: 28px; font-size: 0.7rem; }
.avatar--lg { width: 56px; height: 56px; font-size: 1.1rem; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar__status {
  position: absolute;
  right: -1px; bottom: -1px;
  width: 11px; height: 11px;
  border-radius: 50%;
  border: 2px solid var(--color-surface-primary);
}
.avatar__status--online { background: var(--color-success); }
.avatar__status--offline { background: var(--color-text-muted); }
.avatar-group { display: flex; }
.avatar-group .avatar { margin-left: -10px; }
.avatar-group .avatar:first-child { margin-left: 0; }
.avatar-row { display: flex; align-items: center; gap: var(--space-3); }
.avatar-meta__name { font-weight: 600; font-size: var(--fs-body-sm); }
.avatar-meta__role { font-size: var(--fs-caption); color: var(--color-text-muted); }

/* -----------------------------
   31. Dropdown / popover
   ----------------------------- */
.popover { position: relative; display: inline-block; }
.popover__panel {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 200px;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  z-index: 20;
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  pointer-events: none;
  transition: opacity var(--dur-normal) var(--ease-premium), transform var(--dur-normal) var(--ease-premium);
}
.popover.is-open .popover__panel { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.popover__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--fs-body-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
}
.popover__item svg { width: 15px; height: 15px; flex-shrink: 0; }
.popover__item:hover, .popover__item:focus-visible { background: var(--color-surface-glass-light); color: var(--color-text-primary); }
.popover__item:disabled { opacity: 0.4; cursor: not-allowed; }
.popover__item--danger { color: var(--color-error); }
.popover__divider { height: 1px; background: var(--color-border-subtle); margin: var(--space-2) 0; }

/* -----------------------------
   32. Breadcrumbs
   ----------------------------- */
.breadcrumbs { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-2); font-size: var(--fs-body-sm); }
.breadcrumbs__link { color: var(--color-text-muted); transition: color var(--dur-normal) var(--ease-premium); }
.breadcrumbs__link:hover { color: var(--color-text-primary); }
.breadcrumbs__current { color: var(--color-text-primary); font-weight: 600; }
.breadcrumbs__sep { color: var(--color-text-muted); opacity: 0.5; }

/* -----------------------------
   33. Pagination
   ----------------------------- */
.pagination { display: flex; align-items: center; gap: var(--space-2); }
.pagination__btn {
  min-width: 36px; height: 36px;
  padding-inline: var(--space-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface-primary);
  color: var(--color-text-secondary);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--dur-normal) var(--ease-premium);
}
.pagination__btn:hover:not(:disabled) { border-color: var(--color-border-strong); color: var(--color-text-primary); transform: translateY(-1px); }
.pagination__btn[aria-current="true"] {
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-strong));
  color: var(--raw-white);
  border-color: transparent;
}
.pagination__btn:disabled { opacity: 0.35; cursor: not-allowed; }

/* -----------------------------
   34. Tooltip
   ----------------------------- */
.tooltip-wrap { position: relative; display: inline-flex; }
.tooltip {
  position: absolute;
  padding: 6px var(--space-3);
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--fs-caption);
  color: var(--color-text-primary);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-normal) var(--ease-premium), transform var(--dur-normal) var(--ease-premium);
  z-index: 30;
}
.tooltip-wrap:hover .tooltip, .tooltip-wrap:focus-within .tooltip { opacity: 1; }
.tooltip--top { bottom: calc(100% + 8px); left: 50%; transform: translate(-50%, 4px); }
.tooltip-wrap:hover .tooltip--top, .tooltip-wrap:focus-within .tooltip--top { transform: translate(-50%, 0); }
.tooltip--bottom { top: calc(100% + 8px); left: 50%; transform: translate(-50%, -4px); }
.tooltip-wrap:hover .tooltip--bottom, .tooltip-wrap:focus-within .tooltip--bottom { transform: translate(-50%, 0); }
.tooltip--left { right: calc(100% + 8px); top: 50%; transform: translate(4px, -50%); }
.tooltip-wrap:hover .tooltip--left, .tooltip-wrap:focus-within .tooltip--left { transform: translate(0, -50%); }
.tooltip--right { left: calc(100% + 8px); top: 50%; transform: translate(-4px, -50%); }
.tooltip-wrap:hover .tooltip--right, .tooltip-wrap:focus-within .tooltip--right { transform: translate(0, -50%); }

/* -----------------------------
   35. Progress
   ----------------------------- */
.progress-linear { height: 8px; border-radius: var(--radius-pill); background: var(--color-surface-secondary); overflow: hidden; }
.progress-linear__bar {
  height: 100%; border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  width: 0%;
  transition: width 900ms var(--ease-premium);
}
.progress-linear__bar--success { background: linear-gradient(90deg, var(--color-success-strong), var(--color-success)); }
.progress-meta { display: flex; justify-content: space-between; font-size: var(--fs-caption); color: var(--color-text-muted); margin-top: var(--space-2); }

.progress-circle { position: relative; width: 96px; height: 96px; display: grid; place-items: center; }
.progress-circle svg { transform: rotate(-90deg); width: 100%; height: 100%; }
.progress-circle circle { fill: none; stroke-width: 8; }
.progress-circle__track { stroke: var(--color-surface-secondary); }
.progress-circle__value {
  stroke: var(--color-primary);
  stroke-linecap: round;
  stroke-dasharray: 251;
  stroke-dashoffset: 251;
  transition: stroke-dashoffset 1000ms var(--ease-premium);
}
.progress-circle__label { position: absolute; font-weight: 700; font-size: var(--fs-h3); }

.progress-upload { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-4); border-radius: var(--radius-md); background: var(--color-surface-primary); border: 1px solid var(--color-border-subtle); }
.progress-upload__icon { width: 36px; height: 36px; border-radius: var(--radius-sm); background: color-mix(in srgb, var(--color-primary) 16%, transparent); color: var(--color-primary-soft); display: grid; place-items: center; flex-shrink: 0; }
.progress-upload__body { flex: 1; }
.progress-upload__name { font-size: var(--fs-body-sm); font-weight: 600; }
.progress-upload__meta { font-size: var(--fs-caption); color: var(--color-text-muted); margin-top: 2px; }

.step-progress { display: flex; gap: var(--space-2); }
.step-progress__seg { flex: 1; height: 6px; border-radius: var(--radius-pill); background: var(--color-surface-secondary); overflow: hidden; }
.step-progress__seg span { display: block; height: 100%; width: 0%; background: var(--color-success); transition: width 700ms var(--ease-premium); }
.step-progress__seg.is-active span { background: var(--color-primary); }

/* -----------------------------
   36. Stepper
   ----------------------------- */
.stepper { display: flex; align-items: flex-start; }
.stepper__step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
  position: relative;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
  font: inherit;
}
.stepper__step::before {
  content: '';
  position: absolute;
  top: 17px; left: calc(-50% + 20px); right: calc(50% + 20px);
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}
.stepper__step:first-child::before { display: none; }
.stepper__dot {
  width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-weight: 700;
  font-size: var(--fs-caption);
  position: relative; z-index: 1;
  transition: all var(--dur-normal) var(--ease-premium);
}
.stepper__label { font-size: var(--fs-caption); font-weight: 600; color: var(--color-text-muted); }
.stepper__step.is-complete::before { background: var(--color-success); }
.stepper__step.is-complete .stepper__dot { background: var(--color-success); border-color: var(--color-success); color: var(--color-text-on-accent); }
.stepper__step.is-complete .stepper__label { color: var(--color-text-secondary); }
.stepper__step.is-current .stepper__dot { background: var(--color-primary); border-color: var(--color-primary); color: var(--raw-white); box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary) 25%, transparent); }
.stepper__step.is-current .stepper__label { color: var(--color-text-primary); }
.stepper__step.is-error .stepper__dot { background: color-mix(in srgb, var(--color-error) 18%, transparent); border-color: var(--color-error); color: var(--color-error); }

/* -----------------------------
   37. Real-world compositions
   ----------------------------- */
.comp-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
.app-preview {
  border-radius: var(--radius-lg);
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.app-preview__bar { display: flex; align-items: center; gap: 6px; padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border-subtle); }
.app-preview__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--color-border-strong); }
.app-preview__title { margin-left: var(--space-2); font-size: var(--fs-caption); color: var(--color-text-muted); font-weight: 600; }
.app-preview__body { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; gap: var(--space-4); }
.app-preview__greeting { font-family: var(--font-display); font-size: var(--fs-h3); font-weight: 560; }
.app-preview__metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
.app-preview__metric { padding: var(--space-3); border-radius: var(--radius-sm); background: var(--color-surface-glass-light); text-align: center; }
.app-preview__metric b { display: block; font-size: var(--fs-h3); font-family: var(--font-display); }
.app-preview__metric span { font-size: 0.68rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: var(--ls-wide); }
.app-preview__toolbar { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.app-preview__list { display: flex; flex-direction: column; gap: var(--space-3); }
.app-preview__row { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-2) 0; }
.app-preview__row-text { flex: 1; font-size: var(--fs-body-sm); }
.app-preview__row-text b { display: block; }
.app-preview__row-text span { color: var(--color-text-muted); font-size: var(--fs-caption); }
.app-preview__settings-item { display: flex; align-items: center; justify-content: space-between; padding: var(--space-3) 0; border-top: 1px solid var(--color-border-subtle); }
.app-preview__settings-item:first-child { border-top: none; }
.app-preview__activity-item { display: flex; gap: var(--space-3); align-items: flex-start; }
.app-preview__activity-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); margin-top: 6px; flex-shrink: 0; }
.app-preview__activity-text { font-size: var(--fs-body-sm); color: var(--color-text-secondary); }
.app-preview__activity-text b { color: var(--color-text-primary); }
.app-preview__activity-time { font-size: var(--fs-caption); color: var(--color-text-muted); margin-left: auto; white-space: nowrap; }

/* -----------------------------
   38. Notification center
   ----------------------------- */
.notif-panel { border-radius: var(--radius-lg); border: 1px solid var(--color-border-subtle); background: var(--color-surface-glass); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); overflow: hidden; }
.notif-panel__head { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--color-border-subtle); }
.notif-item { display: flex; gap: var(--space-3); padding: var(--space-4) var(--space-5); border-top: 1px solid var(--color-border-subtle); transition: background var(--dur-normal) var(--ease-premium), opacity var(--dur-normal) var(--ease-premium); position: relative; }
.notif-item:first-of-type { border-top: none; }
.notif-item.is-unread { background: color-mix(in srgb, var(--color-primary) 6%, transparent); }
.notif-item.is-unread::before { content: ''; position: absolute; left: 6px; top: 50%; transform: translateY(-50%); width: 6px; height: 6px; border-radius: 50%; background: var(--color-primary); }
.notif-item__icon { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0; }
.notif-item__icon--success { background: color-mix(in srgb, var(--color-success) 18%, transparent); color: var(--color-success); }
.notif-item__icon--warning { background: color-mix(in srgb, var(--color-warning) 18%, transparent); color: var(--color-warning); }
.notif-item__icon--error { background: color-mix(in srgb, var(--color-error) 18%, transparent); color: var(--color-error); }
.notif-item__icon--info { background: color-mix(in srgb, var(--color-primary) 18%, transparent); color: var(--color-primary-soft); }
.notif-item__body { flex: 1; }
.notif-item__title { font-size: var(--fs-body-sm); font-weight: 600; }
.notif-item__text { font-size: var(--fs-caption); color: var(--color-text-secondary); margin-top: 2px; }
.notif-item__time { font-size: var(--fs-caption); color: var(--color-text-muted); margin-top: 4px; }
.notif-item__dismiss { color: var(--color-text-muted); cursor: pointer; flex-shrink: 0; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; transition: background var(--dur-normal) var(--ease-premium), color var(--dur-normal) var(--ease-premium); }
.notif-item__dismiss:hover { background: var(--color-surface-glass-light); color: var(--color-text-primary); }
.notif-item.is-leaving { opacity: 0; transform: translateX(16px); }

/* -----------------------------
   39. Command palette
   ----------------------------- */
.command-backdrop {
  position: fixed; inset: 0;
  background: var(--color-scrim);
  backdrop-filter: blur(6px);
  z-index: 600;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 14vh;
  padding-inline: var(--space-5);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-overlay) var(--ease-premium);
}
.command-backdrop.is-open { opacity: 1; pointer-events: auto; }
.command-palette {
  width: 100%;
  max-width: 560px;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: translateY(-16px) scale(0.98);
  opacity: 0;
  transition: transform var(--dur-overlay) var(--ease-premium), opacity var(--dur-overlay) var(--ease-premium);
}
.command-backdrop.is-open .command-palette { transform: translateY(0) scale(1); opacity: 1; }
.command-palette__input-row { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--color-border-subtle); }
.command-palette__input-row svg { width: 18px; height: 18px; color: var(--color-text-muted); flex-shrink: 0; }
.command-palette__input { flex: 1; background: none; border: none; color: var(--color-text-primary); font-size: var(--fs-body); }
.command-palette__input::placeholder { color: var(--color-text-muted); }
.command-palette__kbd { font-size: var(--fs-caption); color: var(--color-text-muted); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 2px 6px; }
.command-palette__list {
  max-height: 320px;
  overflow-y: auto;
  padding: var(--space-2);
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-strong) transparent;
}
.command-palette__list::-webkit-scrollbar { width: 8px; }
.command-palette__list::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: var(--radius-pill); }
.command-palette__list::-webkit-scrollbar-track { background: transparent; }
.command-palette__item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--fs-body-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
}
.command-palette__item svg { width: 16px; height: 16px; color: var(--color-text-muted); flex-shrink: 0; }
.command-palette__item.is-active, .command-palette__item:hover { background: var(--color-surface-glass-light); color: var(--color-text-primary); }
.command-palette__empty { padding: var(--space-6); text-align: center; color: var(--color-text-muted); font-size: var(--fs-body-sm); }

/* -----------------------------
   40. Header search + favorites
   ----------------------------- */
.header-search { position: relative; display: inline-flex; align-items: center; }
.header-search__icon { position: absolute; left: var(--space-3); width: 15px; height: 15px; color: var(--color-text-muted); pointer-events: none; }
.header-search__input {
  width: 168px;
  height: 36px;
  background: var(--color-surface-glass-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding-left: var(--space-7);
  padding-right: var(--space-3);
  font-size: var(--fs-caption);
  color: var(--color-text-primary);
  transition: border-color var(--dur-normal) var(--ease-premium), width var(--dur-normal) var(--ease-premium);
}
.header-search__input:focus { border-color: var(--color-primary-soft); width: 200px; }
.header-search__input::placeholder { color: var(--color-text-muted); }
.section.is-search-match { animation: searchPulse 1200ms var(--ease-premium); }
@keyframes searchPulse {
  0%, 100% { box-shadow: none; }
  30% { box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--color-primary) 45%, transparent); }
}

.favorite-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: none; border: none;
  color: var(--color-text-muted);
  font-size: var(--fs-caption);
  font-weight: 600;
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--dur-normal) var(--ease-premium);
}
.favorite-btn:hover { color: var(--color-error); }
.favorite-btn svg { width: 15px; height: 15px; transition: transform var(--dur-micro) var(--ease-premium); }
.favorite-btn.is-pinned { color: var(--color-error); }
.favorite-btn.is-pinned svg { transform: scale(1.12); }
.favorite-btn.is-bounce svg { animation: favoriteBounce 420ms var(--ease-premium); }
@keyframes favoriteBounce { 0% { transform: scale(1); } 40% { transform: scale(1.35); } 100% { transform: scale(1.12); } }

/* -----------------------------
   41. Mobile transformation showcase
   ----------------------------- */
.transform-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-5); }
.transform-card { border-radius: var(--radius-lg); border: 1px solid var(--color-border-subtle); background: var(--color-surface-primary); padding: var(--space-5); }
.transform-card__title { font-weight: 700; font-size: var(--fs-body-sm); margin-bottom: var(--space-4); }
.transform-pair { display: flex; align-items: center; gap: var(--space-3); }
.transform-pair__before, .transform-pair__after { flex: 1; min-width: 0; }
.transform-pair__arrow { color: var(--color-text-muted); flex-shrink: 0; }
.transform-pair__label { display: block; font-size: 0.65rem; text-transform: uppercase; letter-spacing: var(--ls-wide); color: var(--color-text-muted); margin-bottom: var(--space-2); text-align: center; }
.mini-table { font-size: 0.65rem; border: 1px solid var(--color-border-subtle); border-radius: var(--radius-sm); overflow: hidden; }
.mini-table div { display: flex; justify-content: space-between; padding: 4px 6px; border-top: 1px solid var(--color-border-subtle); color: var(--color-text-secondary); }
.mini-table div:first-child { border-top: none; background: var(--color-surface-secondary); font-weight: 700; }
.mini-card-stack { display: flex; flex-direction: column; gap: 4px; }
.mini-card-stack div { font-size: 0.65rem; padding: 5px 7px; border-radius: 4px; background: var(--color-surface-secondary); border: 1px solid var(--color-border-subtle); color: var(--color-text-secondary); }
.mini-frame { border-radius: var(--radius-sm); border: 1px solid var(--color-border-subtle); background: var(--color-surface-secondary); padding: var(--space-3); text-align: center; font-size: 0.65rem; color: var(--color-text-muted); }
.mini-frame--sheet { border-radius: var(--radius-sm) var(--radius-sm) 2px 2px; position: relative; }
.mini-frame--sheet::before { content: ''; position: absolute; top: 4px; left: 50%; transform: translateX(-50%); width: 24px; height: 3px; border-radius: 2px; background: var(--color-border-strong); }
.mini-fab { display: block; width: 22px; height: 22px; border-radius: 50%; background: var(--color-accent-yellow); margin-inline: auto; box-shadow: var(--shadow-glow-yellow); }

/* -----------------------------
   42. Typography lab controls
   ----------------------------- */
.range-field { display: flex; flex-direction: column; gap: var(--space-2); }
.range-field__row { display: flex; justify-content: space-between; font-size: var(--fs-caption); color: var(--color-text-muted); }
.range-input {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--color-surface-secondary);
  outline: none;
}
.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-surface-primary);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}
.range-input::-moz-range-thumb {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-surface-primary);
  cursor: pointer;
}
.type-lab-preview {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border-subtle);
  min-height: 120px;
  display: flex;
  align-items: center;
}

/* -----------------------------
   43. Nav / section polish
   ----------------------------- */
.primary-nav__link[data-match="true"] { color: var(--color-accent-yellow); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

/* ----- 1024px — laptop / small desktop ----- */
@media (max-width: 1024px) {
  .container { padding-inline: var(--space-5); }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .foundation-split { grid-template-columns: 1fr; }
  .playground { grid-template-columns: 1fr; }
  .gallery-mock__grid { grid-template-columns: 180px 1fr; }
  .gallery-mock__row { grid-template-columns: repeat(2, 1fr); }
}

/* ----- 768px — tablet ----- */
@media (max-width: 768px) {
  .primary-nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-drawer { display: flex; }
  .site-header__inner { border-radius: var(--radius-lg); }
  .hero__heading { max-width: 12ch; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .type-row { grid-template-columns: 1fr; gap: var(--space-2); }
  .gallery-mock__grid { grid-template-columns: 1fr; }
  .gallery-mock__side { display: none; }
  .gallery-mock__row { grid-template-columns: repeat(2, 1fr); }
  .gallery-mock__top { flex-wrap: wrap; row-gap: var(--space-3); }
  .drawer { width: min(360px, 90vw); }
  .section { padding-block: var(--space-7); }
  .tabs__list { max-width: 100%; overflow-x: auto; scrollbar-width: none; }
  .tabs__list::-webkit-scrollbar { display: none; }
}

/* ----- 360px — mobile ----- */
@media (max-width: 480px) {
  .container { padding-inline: var(--space-4); }
  .site-header__inner { padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4); margin-top: var(--space-3); }
  .brand__name { font-size: 0.85rem; }
  .hero { padding-top: var(--space-7); }
  .hero__heading { max-width: 100%; font-size: clamp(2.1rem, 1.6rem + 5vw, 2.6rem); }
  .hero__pills { gap: var(--space-2); }
  .hero__pill { padding: var(--space-2) var(--space-4); font-size: var(--fs-caption); }
  .hero__stats { grid-template-columns: repeat(2, 1fr); margin-top: var(--space-6); }
  .section-head { flex-direction: column; align-items: flex-start; }
  .section-head__title { font-size: clamp(1.5rem, 1.3rem + 2vw, 1.9rem); }
  .color-grid { grid-template-columns: repeat(2, 1fr); }
  .input-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .state-strip { grid-template-columns: repeat(2, 1fr); }

  /* Table → stacked cards */
  .table-wrap table.table { display: none; }
  .table-card { display: flex; flex-direction: column; gap: 0; }
  .table-card__item {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border-subtle);
  }
  .table-card__item:first-child { border-top: none; }
  .table-card__row { display: flex; align-items: center; justify-content: space-between; padding-block: 6px; gap: var(--space-3); }
  .table-card__label { font-weight: 500; color: var(--color-text-muted); font-size: var(--fs-caption); }
  .table-card__value { color: var(--color-text-primary); font-size: var(--fs-body-sm); text-align: right; }

  /* Modal → full-screen sheet */
  .modal-backdrop { padding: 0; align-items: flex-end; }
  .modal {
    max-width: 100%;
    width: 100%;
    height: min(86vh, 100%);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transform: translateY(100%);
    overflow-y: auto;
  }
  .modal-backdrop.is-open .modal { transform: translateY(0); }

  /* Drawer → near full-screen */
  .drawer { width: 100%; max-width: 100%; }

  .gallery-mock__row { grid-template-columns: 1fr; }
  .preview-stage { padding: var(--space-5) var(--space-3); }

  .fab { display: flex; }
}

@media (min-width: 481px) and (max-width: 768px) {
  .fab { display: none; }
}

/* ----- New component responsive polish ----- */
@media (max-width: 1280px) {
  .header-search { display: none; }
}
@media (max-width: 1024px) {
  .comp-grid { grid-template-columns: 1fr; }
  .app-preview__metrics { grid-template-columns: repeat(2, 1fr); }
  .primary-nav__list { gap: 0; }
  .primary-nav__link { padding-inline: var(--space-3); font-size: 0.8rem; }
}
@media (max-width: 768px) {
  .header-search { display: none !important; }
  .icon-grid { grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); }
}
@media (max-width: 480px) {
  .surface-grid { grid-template-columns: 1fr 1fr; }
  .icon-grid { grid-template-columns: repeat(3, 1fr); }
  .app-preview__metrics { grid-template-columns: repeat(2, 1fr); }
  .stepper__label { font-size: 0.65rem; }
  .command-backdrop { padding-top: 8vh; }
  .transform-grid { grid-template-columns: 1fr; }
  .pagination { flex-wrap: wrap; }
  .breadcrumbs { font-size: var(--fs-caption); }
  .tooltip--left, .tooltip--right {
    left: 50%; right: auto; top: auto;
    bottom: calc(100% + 8px);
    transform: translate(-50%, 4px);
  }
  .tooltip-wrap:hover .tooltip--left, .tooltip-wrap:focus-within .tooltip--left,
  .tooltip-wrap:hover .tooltip--right, .tooltip-wrap:focus-within .tooltip--right {
    transform: translate(-50%, 0);
  }
}