:root {
  color-scheme: light;
  --bg: #ffffff;
  --sidebar: #fbfbfb;
  --ink: #111111;
  --text: #262626;
  --muted: #6b7280;
  --faint: #f4f4f5;
  --line: #e5e7eb;
  --line-dark: #d4d4d8;
  --accent: #2563eb;
  --code: #f8fafc;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", "Fira Code", Consolas, monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0b0c;
  --sidebar: #111113;
  --ink: #f4f4f5;
  --text: #d4d4d8;
  --muted: #a1a1aa;
  --faint: #1d1d20;
  --line: #27272a;
  --line-dark: #3f3f46;
  --accent: #60a5fa;
  --code: #151519;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  margin: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  background: var(--ink);
  color: white;
  left: 16px;
  padding: 10px 12px;
  position: absolute;
  top: -60px;
  z-index: 10;
}

.skip-link:focus {
  top: 16px;
}

.docs-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.docs-sidebar {
  background: var(--sidebar);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 24px;
  position: sticky;
  top: 0;
}

.brand {
  align-items: center;
  display: flex;
  gap: 12px;
  margin-bottom: 34px;
  text-decoration: none;
}

.brand img {
  border: 1px solid var(--line-dark);
  filter: grayscale(1);
  height: 42px;
  object-fit: cover;
  width: 42px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  color: var(--ink);
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
  margin-top: 2px;
}

.docs-nav {
  display: grid;
  gap: 2px;
}

.docs-nav p {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 22px 0 7px;
  text-transform: uppercase;
}

.docs-nav p:first-child {
  margin-top: 0;
}

.docs-nav a {
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 560;
  padding: 7px 9px;
  text-decoration: none;
}

.docs-nav a:hover {
  background: var(--faint);
  color: var(--ink);
}

.sidebar-footer {
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: auto;
  padding-top: 18px;
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 650;
  padding: 5px 9px;
}

.theme-toggle:hover {
  border-color: var(--line-dark);
  color: var(--ink);
}

.sidebar-footer a {
  color: var(--muted);
  font-size: 0.82rem;
  text-decoration: none;
}

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

.docs-frame {
  min-width: 0;
}

.mobile-header {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: none;
  justify-content: space-between;
  min-height: 58px;
  padding: 0 20px;
}

.mobile-header > div {
  align-items: center;
  display: flex;
  gap: 12px;
}

.mobile-header a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.mobile-brand {
  color: var(--ink) !important;
}

.theme-toggle-mobile {
  font-size: 0.8rem;
  padding: 4px 8px;
}

.docs-main {
  margin: 0 auto;
  max-width: 920px;
  padding: 68px 48px 96px;
}

.doc-page {
  max-width: 780px;
}

.doc-hero,
.doc-header {
  border-bottom: 1px solid var(--line);
  margin-bottom: 36px;
  padding-bottom: 32px;
}

.eyebrow {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  margin: 0 0 14px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.doc-hero h1,
.doc-header h1 {
  color: var(--ink);
  font-size: clamp(2.5rem, 6vw, 4.8rem);
  letter-spacing: -0.055em;
  line-height: 0.95;
  margin-bottom: 18px;
}

.doc-hero p:last-child,
.doc-header p:last-child {
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.65;
  max-width: 680px;
}

.doc-callout {
  background: var(--code);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  color: var(--muted);
  display: grid;
  gap: 4px;
  margin-bottom: 36px;
  padding: 16px 18px;
}

.doc-callout strong {
  color: var(--ink);
}

.doc-section {
  margin-top: 48px;
}

.section-title-row {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.doc-section h2,
.prose h2 {
  color: var(--ink);
  font-size: 1.65rem;
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin-bottom: 18px;
}

.doc-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.doc-card,
.doc-list-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: block;
  padding: 18px;
  text-decoration: none;
}

.doc-card:hover,
.doc-list-item:hover {
  border-color: var(--line-dark);
}

.doc-card span,
.doc-list-item span {
  color: var(--accent);
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 850;
  margin-bottom: 10px;
}

.doc-card strong,
.doc-list-item strong {
  color: var(--ink);
  display: block;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.doc-card p,
.doc-list-item p,
.principles p,
.prose {
  color: var(--muted);
  line-height: 1.65;
}

.doc-card p,
.doc-list-item p {
  font-size: 0.94rem;
  margin: 8px 0 0;
}

.principles {
  border: 1px solid var(--line);
  border-radius: 8px;
}

.principles p {
  border-bottom: 1px solid var(--line);
  margin: 0;
  padding: 18px;
}

.principles p:last-child {
  border-bottom: 0;
}

.principles strong {
  color: var(--ink);
}

.doc-list {
  display: grid;
  gap: 10px;
}

.section-title-row a,
.prose a {
  color: var(--accent);
  font-weight: 650;
  text-decoration: none;
}

.section-title-row a:hover,
.prose a:hover {
  text-decoration: underline;
}

.prose {
  font-size: 1rem;
}

.prose h2 {
  margin-top: 2.4rem;
}

.prose h3 {
  color: var(--ink);
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  margin-top: 2rem;
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2rem 0;
}

.prose code {
  background: var(--code);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.9em;
  padding: 0.12rem 0.28rem;
}

@media (max-width: 920px) {
  .docs-shell {
    display: block;
  }

  .docs-sidebar {
    display: none;
  }

  .mobile-header {
    display: flex;
  }

  .docs-main {
    padding: 44px 22px 72px;
  }
}

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

  .doc-hero h1,
  .doc-header h1 {
    font-size: 3rem;
  }
}