/* Tessra design system style board — tokens mirror styles/tokens.css */

:root,
[data-theme="quartz"] {
  --bg: #15141A;
  --bg-2: #18171F;
  --bg-card: #1D1C24;
  --bg-elev: rgba(36, 35, 44, 0.9);
  --ink: #F1EFF5;
  --ink-2: #BBB6C7;
  --ink-3: #7D7889;
  --hairline: rgba(241, 239, 245, 0.10);
  --accent: #E0A7BC;
  --accent-deep: #DDA6B4;
  --accent-soft: rgba(224, 167, 188, 0.14);
  --accent-wash: rgba(224, 167, 188, 0.92);
  --gold: #E7D4AC;
  --navy: #101018;
  --tile-thick: #DDA6B4;
  --tile-thin: #A8C7E2;
  --swatch-a: #DDA6B4;
  --swatch-b: #A8C7E2;
}

[data-theme="soft-atlas"] {
  --bg: #151515;
  --bg-2: #1A1917;
  --bg-card: #1E1D1B;
  --bg-elev: rgba(36, 35, 33, 0.88);
  --ink: #F3F0EA;
  --ink-2: #BDB7AD;
  --ink-3: #7C7770;
  --hairline: rgba(243, 240, 234, 0.10);
  --accent: #F06F5E;
  --accent-deep: #E96758;
  --accent-soft: rgba(240, 111, 94, 0.14);
  --accent-wash: rgba(240, 111, 94, 0.92);
  --gold: #F1D86E;
  --navy: #10100E;
  --tile-thick: #E96758;
  --tile-thin: #E9D76B;
  --swatch-a: #E96758;
  --swatch-b: #E9D76B;
}

[data-theme="lagoon"] {
  --bg: #101715;
  --bg-2: #131B18;
  --bg-card: #18221F;
  --bg-elev: rgba(29, 40, 37, 0.9);
  --ink: #EAF1ED;
  --ink-2: #A6BAB3;
  --ink-3: #6C7F79;
  --hairline: rgba(234, 241, 237, 0.10);
  --accent: #6FC2B2;
  --accent-deep: #5FB4A6;
  --accent-soft: rgba(111, 194, 178, 0.14);
  --accent-wash: rgba(111, 194, 178, 0.92);
  --gold: #9FD9C9;
  --navy: #0C1210;
  --tile-thick: #5FB4A6;
  --tile-thin: #79BEDC;
  --swatch-a: #5FB4A6;
  --swatch-b: #79BEDC;
}

[data-theme="folio"] {
  --bg: #0A0A0C;
  --bg-2: #0D0D10;
  --bg-card: #101012;
  --bg-elev: rgba(30, 30, 36, 0.9);
  --ink: #F0EEF2;
  --ink-2: #A8A4B0;
  --ink-3: #65616E;
  --hairline: rgba(240, 238, 242, 0.10);
  --accent: #F090A8;
  --accent-deep: #E87898;
  --accent-soft: rgba(240, 144, 168, 0.14);
  --accent-wash: rgba(240, 144, 168, 0.92);
  --gold: #D8D2DC;
  --navy: #060608;
  --tile-thick: #E87898;
  --tile-thin: #9AA0AC;
  --swatch-a: #E87898;
  --swatch-b: #9AA0AC;
}

:root {
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --fs-hero: clamp(2.4rem, 5vw, 4.2rem);
  --fs-h2: clamp(1.6rem, 3vw, 2.4rem);
  --fs-lead: clamp(1rem, 1.3vw, 1.15rem);
  --fs-body: 1rem;
  --fs-label: 0.74rem;
  --maxw: 1120px;
  --r-sm: 12px;
  --r-md: 18px;
  --r-pill: 999px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rhomb--drift { animation: none !important; }
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.62;
  transition: background 0.35s var(--ease), color 0.35s var(--ease);
}

a { color: var(--accent); }

/* Header */
.board-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  background: var(--bg-elev);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}

.board-header__brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
}

.board-header__mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--tile-thick), var(--tile-thin));
}

.board-header__title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.board-header__title strong {
  color: var(--ink);
  font-weight: 600;
}

.theme-switcher {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.theme-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.theme-btn:hover {
  border-color: var(--accent);
  color: var(--ink);
}

.theme-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-btn.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--ink);
}

.theme-btn__dots {
  display: flex;
  gap: 2px;
}

.theme-btn__dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* Layout */
.board {
  width: min(var(--maxw), calc(100vw - 2.5rem));
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.section {
  padding: 3rem 0;
  border-bottom: 1px solid var(--hairline);
}

.section:last-child { border-bottom: none; }

.section__label {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.section__label::before {
  content: "";
  display: inline-block;
  width: 1.5rem;
  height: 1px;
  background: var(--accent);
  margin-right: 0.65rem;
  vertical-align: middle;
}

.section__title {
  margin: 0 0 1.75rem;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding-top: 1rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--hairline);
}

@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; }
}

.hero__wordmark {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.03em;
}

.hero__wordmark em {
  font-style: italic;
  color: var(--accent-deep);
}

.hero__tag {
  margin: 1rem 0 0;
  font-size: var(--fs-lead);
  color: var(--ink-2);
  max-width: 36ch;
}

.hero__meta {
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.hero__visual {
  display: grid;
  place-items: center;
  min-height: 280px;
  position: relative;
}

.hero__glow {
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  filter: blur(20px);
}

.hero__rhombs {
  position: relative;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

/* Colors */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}

.swatch {
  border-radius: var(--r-sm);
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.swatch__chip {
  height: 72px;
}

.swatch__meta {
  padding: 0.65rem 0.75rem;
  background: var(--bg-card);
}

.swatch__name {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.swatch__hex {
  display: block;
  margin-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink);
}

/* Typography */
.type-specimens {
  display: grid;
  gap: 2rem;
}

.type-row {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--hairline);
}

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

.type-row__meta {
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.type-hero {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.type-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 600;
  line-height: 1.1;
}

.type-h2 em {
  font-style: italic;
  color: var(--accent-deep);
}

.type-lead {
  margin: 0;
  font-size: var(--fs-lead);
  color: var(--ink-2);
  max-width: 48ch;
}

.type-body {
  margin: 0;
  max-width: 56ch;
}

.type-eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.type-eyebrow::before {
  content: "";
  display: inline-block;
  width: 1.25rem;
  height: 1px;
  background: var(--accent);
  margin-right: 0.5rem;
  vertical-align: middle;
}

/* Components */
.comp-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: var(--r-pill);
  border: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease), opacity 0.2s;
}

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

.btn--primary {
  background: var(--accent);
  color: var(--navy);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--hairline);
}

.btn:hover { transform: translateY(-1px); }

.chip {
  display: inline-block;
  padding: 9px 16px;
  border-radius: var(--r-pill);
  background: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 520px;
}

@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; }
}

.stat__n {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.stat__l {
  margin: 0.35rem 0 0;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink-2);
}

/* Rhombs */
.rhomb {
  width: 120px;
  height: 96px;
  position: relative;
}

.rhomb svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.rhomb--drift {
  animation: rhomb-drift 6s ease-in-out infinite alternate;
}

.rhomb--drift:nth-child(2) {
  animation-delay: -3s;
}

@keyframes rhomb-drift {
  from { transform: translateY(0) rotate(0deg); }
  to { transform: translateY(-10px) rotate(2deg); }
}

.rhomb__thick { fill: var(--tile-thick); }
.rhomb__thin { fill: var(--tile-thin); }

/* Patterns */
.pattern-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.pattern-card {
  border-radius: var(--r-md);
  border: 1px solid var(--hairline);
  overflow: hidden;
  background: var(--bg-card);
}

.pattern-card--wash {
  background: var(--accent-wash);
  color: var(--navy);
  padding: 1.75rem;
}

.pattern-card--wash .pattern-card__title {
  color: var(--navy);
}

.pattern-card__phone {
  padding: 1.5rem;
  display: grid;
  place-items: center;
  background: var(--bg-2);
}

.phone {
  width: 160px;
  border-radius: 28px;
  border: 3px solid var(--hairline);
  background: var(--bg);
  padding: 8px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.phone__screen {
  aspect-ratio: 402 / 874;
  border-radius: 20px;
  background: linear-gradient(160deg, var(--tile-thick) 0%, var(--bg) 40%, var(--tile-thin) 100%);
  opacity: 0.85;
}

.pattern-card__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.pattern-card__desc {
  margin: 0;
  font-size: 0.9rem;
  opacity: 0.85;
}

/* Alt themes */
.alt-themes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.alt-card {
  padding: 1.25rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--hairline);
  cursor: pointer;
  background: var(--bg-card);
  text-align: left;
  font: inherit;
  color: inherit;
  transition: border-color 0.2s;
}

.alt-card:hover,
.alt-card:focus-visible {
  border-color: var(--accent);
  outline: none;
}

.alt-card__dots {
  display: flex;
  gap: 4px;
  margin-bottom: 0.75rem;
}

.alt-card__dots span {
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.alt-card__name {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.alt-card__label {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.alt-card__mood {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: var(--ink-2);
}

/* Do / Don't */
.rules-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 640px) {
  .rules-grid { grid-template-columns: 1fr; }
}

.rules-col h3 {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.rules-col--do h3 { color: var(--gold); }
.rules-col--dont h3 { color: var(--accent-deep); }

.rules-col ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--ink-2);
}

.rules-col li { margin-bottom: 0.5rem; }

.board-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.board-footer a {
  color: var(--ink-2);
  text-decoration: none;
}

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