:root,
[data-theme='light'] {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2.25rem, 1.45rem + 3vw, 4.75rem);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --color-bg: #f7f6f2;
  --color-surface: #fbfbf9;
  --color-surface-2: #f0eee8;
  --color-surface-offset: #e9e6df;
  --color-border: #d4d1ca;
  --color-text: #28251d;
  --color-text-muted: #706d66;
  --color-text-faint: #a6a29a;
  --color-text-inverse: #f9f8f4;
  --color-primary: #01696f;
  --color-primary-hover: #0c4e54;
  --color-primary-highlight: #d7e8e5;
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.06);
  --shadow-md: 0 8px 24px oklch(0.2 0.01 80 / 0.08);
  --font-display: 'Cabinet Grotesk', 'Arial', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme='dark'] {
  --color-bg: #171614;
  --color-surface: #1f1e1b;
  --color-surface-2: #26241f;
  --color-surface-offset: #302e28;
  --color-border: #403d35;
  --color-text: #e5e0d7;
  --color-text-muted: #aaa49a;
  --color-text-faint: #79736a;
  --color-text-inverse: #171614;
  --color-primary: #72adb3;
  --color-primary-hover: #9ec8cc;
  --color-primary-highlight: #223b3d;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.28);
}

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

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background:
    linear-gradient(90deg, color-mix(in oklab, var(--color-border) 34%, transparent) 1px, transparent 1px),
    linear-gradient(var(--color-bg), var(--color-bg));
  background-size: 72px 72px, auto;
}

a {
  color: inherit;
  text-decoration: none;
}

svg {
  display: block;
}

p {
  max-width: 72ch;
  text-wrap: pretty;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.04;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

button {
  cursor: pointer;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
}

a,
button {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    transform var(--transition-interactive);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: var(--space-4);
  z-index: 10;
  transform: translateY(-160%);
  background: var(--color-text);
  color: var(--color-text-inverse);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-6);
  align-items: center;
  padding: var(--space-4) clamp(var(--space-4), 5vw, var(--space-12));
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--color-border) 70%, transparent);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  color: var(--color-primary);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-6);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.nav a:hover {
  color: var(--color-text);
}

.theme-toggle {
  display: grid;
  min-width: 44px;
  min-height: 44px;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full, 9999px);
  background: var(--color-surface);
}

main {
  width: min(100%, 1280px);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-12));
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
  gap: clamp(var(--space-10), 7vw, var(--space-20));
  align-items: center;
  min-height: calc(100dvh - 82px);
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

.hero-copy {
  display: grid;
  gap: var(--space-6);
}

.eyebrow,
.section-kicker,
.card-label {
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 11ch;
  font-size: var(--text-2xl);
}

.lede {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 700;
}

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

.button-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.button-primary:hover {
  background: var(--color-primary-hover);
}

.button-secondary {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.button-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.artifact-card,
.output-grid article,
.repo-card,
.partner-panel {
  border: 1px solid color-mix(in oklab, var(--color-border) 88%, transparent);
  background: color-mix(in oklab, var(--color-surface) 94%, transparent);
  box-shadow: var(--shadow-md);
}

.artifact-card {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
}

.artifact-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 700;
}

.artifact-dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--color-primary);
}

.artifact-list {
  display: grid;
  gap: var(--space-4);
}

.artifact-list div {
  display: grid;
  gap: var(--space-1);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid color-mix(in oklab, var(--color-border) 72%, transparent);
}

.artifact-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.artifact-list dt {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.artifact-list dd {
  font-size: var(--text-lg);
  font-weight: 700;
}

.problem,
.output,
.reference,
.rcm,
.design-partners {
  padding-block: clamp(var(--space-12), 7vw, var(--space-20));
}

.problem {
  display: grid;
  grid-template-columns: 0.36fr 1fr;
  gap: clamp(var(--space-8), 6vw, var(--space-16));
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.problem h2,
.section-heading h2,
.reference h2,
.partner-panel h2 {
  margin-top: var(--space-3);
  font-size: var(--text-xl);
}

.problem p,
.reference p,
.partner-panel p {
  color: var(--color-text-muted);
}

.problem p + p {
  margin-top: var(--space-4);
  color: var(--color-text);
  font-weight: 700;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: var(--space-8);
  align-items: end;
  margin-bottom: var(--space-8);
}

.output-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.output-grid article {
  min-height: 14rem;
  display: grid;
  align-content: start;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
}

.output-grid .wide-card {
  grid-column: span 2;
  background: var(--color-text);
  color: var(--color-text-inverse);
}

.wide-card .card-label {
  color: color-mix(in oklab, var(--color-primary) 64%, white);
}

.pipeline {
  max-width: none;
  font-family: 'Satoshi', 'Inter', sans-serif;
  font-size: var(--text-lg);
  font-weight: 700;
}

.pipeline span {
  color: color-mix(in oklab, var(--color-primary) 78%, white);
}

.output-grid h3 {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}

.output-grid p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.reference {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.62fr);
  gap: clamp(var(--space-8), 6vw, var(--space-16));
  align-items: center;
}

.repo-card {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
}

.repo-card a {
  overflow-wrap: anywhere;
  color: var(--color-text);
  font-family: 'Satoshi', 'Inter', sans-serif;
  font-size: var(--text-sm);
  font-weight: 700;
}

.repo-card a:hover {
  color: var(--color-primary);
}

.workflow-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.workflow-list div {
  min-height: 7rem;
  display: flex;
  align-items: end;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: color-mix(in oklab, var(--color-surface) 86%, transparent);
  font-weight: 700;
}

.partner-panel {
  display: grid;
  gap: var(--space-6);
  padding: clamp(var(--space-6), 5vw, var(--space-12));
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, color-mix(in oklab, var(--color-primary-highlight) 70%, transparent), transparent 56%),
    var(--color-surface);
}

.partner-panel h2 {
  max-width: 17ch;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-8) clamp(var(--space-4), 5vw, var(--space-12));
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.site-footer a:hover {
  color: var(--color-primary);
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .nav {
    display: none;
  }

  .hero,
  .problem,
  .reference {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    max-width: 12ch;
  }

  .output-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workflow-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header {
    padding-inline: var(--space-4);
  }

  .output-grid,
  .workflow-list {
    grid-template-columns: 1fr;
  }

  .output-grid .wide-card {
    grid-column: auto;
  }

  .section-heading,
  .site-footer {
    display: grid;
  }

  .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}