:root {
  --ink: #172033;
  --muted: #64748b;
  --subtle: #94a3b8;
  --line: #e2e8f0;
  --surface: #ffffff;
  --wash: #f8fafc;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --accent-soft: #dbeafe;
  --code: #0f172a;
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--wash);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(226, 232, 240, 0.9);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.header-inner {
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 760;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 9px;
  color: #ffffff;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: -0.08em;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.92rem;
  font-weight: 600;
}

.top-nav a {
  color: var(--muted);
}

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

.top-nav .github-link {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
}

.home {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 72px;
  align-items: center;
  min-height: 530px;
  padding: 88px 0 82px;
}

.eyebrow,
.card-label,
.sidebar-label {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 690px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 1.06;
  letter-spacing: -0.065em;
}

.hero-lead {
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.16rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 9px;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.button-primary {
  color: #ffffff;
  background: var(--accent);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.22);
}

.button-primary:hover {
  color: #ffffff;
  background: var(--accent-dark);
}

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

.button-secondary:hover {
  color: var(--ink);
  border-color: #bfdbfe;
  background: #eff6ff;
}

.hero-card {
  padding: 25px;
  border: 1px solid #1e293b;
  border-radius: 18px;
  background: var(--code);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}

.hero-card .card-label {
  color: #93c5fd;
}

.hero-card pre {
  margin: 0;
  overflow-x: auto;
  color: #dbeafe;
  background: transparent;
  font-size: 0.88rem;
  line-height: 1.8;
}

.hero-card p {
  margin: 18px 0 0;
  color: #94a3b8;
  font-size: 0.88rem;
}

.home-catalog {
  padding: 0 0 86px;
}

.home-catalog > h1 {
  margin: 0 0 22px;
  font-size: 1.8rem;
  letter-spacing: -0.03em;
}

.home-catalog .catalog-category {
  margin: 18px 0 0;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}

.home-catalog .catalog-category h2 {
  margin: 0;
  font-size: 1.15rem;
}

.home-catalog ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 28px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.home-catalog li {
  padding: 9px 0;
  border-top: 1px solid var(--line);
}

.catalog-summary {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.docs-layout {
  display: grid;
  grid-template-columns: 238px minmax(0, 1fr);
  gap: 64px;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 54px 0 90px;
}

.sidebar {
  position: sticky;
  top: 104px;
  align-self: start;
}

.sidebar-label {
  margin-bottom: 18px;
  color: var(--muted);
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.side-nav a {
  display: block;
  padding: 6px 11px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.92rem;
}

.side-nav a:hover {
  color: var(--ink);
  background: #eef2ff;
  text-decoration: none;
}

.side-nav a.active {
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-weight: 700;
}

.nav-group {
  margin: 18px 11px 5px;
  color: var(--subtle);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.translation-link {
  display: inline-block;
  margin: 28px 11px 0;
  font-size: 0.88rem;
  font-weight: 700;
}

.doc-main {
  min-width: 0;
}

.breadcrumbs {
  display: flex;
  gap: 9px;
  align-items: center;
  margin-bottom: 24px;
  color: var(--subtle);
  font-size: 0.84rem;
}

.breadcrumbs a {
  color: var(--muted);
}

.doc-article {
  max-width: 780px;
  padding: 4px 0;
}

.doc-meta {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--subtle);
  font-size: 0.82rem;
  font-weight: 650;
}

.doc-article h1,
.doc-article h2,
.doc-article h3,
.doc-article h4 {
  color: var(--ink);
  line-height: 1.22;
  letter-spacing: -0.035em;
}

.doc-article h1 {
  margin: 0 0 24px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.doc-article h2 {
  margin: 46px 0 15px;
  padding-top: 8px;
  font-size: 1.55rem;
}

.doc-article h3 {
  margin: 32px 0 10px;
  font-size: 1.2rem;
}

.doc-article p,
.doc-article ul,
.doc-article ol,
.doc-article blockquote,
.doc-article table,
.doc-article pre {
  margin-top: 0;
  margin-bottom: 20px;
}

.doc-article ul,
.doc-article ol {
  padding-left: 1.35rem;
}

.doc-article li + li {
  margin-top: 7px;
}

.doc-article strong {
  color: #0f172a;
}

.doc-article code {
  padding: 0.16em 0.34em;
  border-radius: 5px;
  color: #be185d;
  background: #fce7f3;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.88em;
}

.doc-article pre {
  padding: 18px 20px;
  overflow-x: auto;
  border: 1px solid #1e293b;
  border-radius: 10px;
  color: #e2e8f0;
  background: var(--code);
  line-height: 1.65;
}

.doc-article pre code {
  padding: 0;
  color: inherit;
  background: transparent;
  font-size: 0.88rem;
}

.doc-article blockquote {
  margin-left: 0;
  padding: 4px 18px;
  border-left: 3px solid #93c5fd;
  color: var(--muted);
  background: #eff6ff;
}

.doc-article hr {
  margin: 36px 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.doc-article table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 0.93rem;
}

.doc-article th,
.doc-article td {
  min-width: 130px;
  padding: 10px 13px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.doc-article th {
  color: var(--ink);
  background: #f1f5f9;
  font-weight: 750;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: var(--surface);
  font-size: 0.82rem;
}

.footer-inner {
  min-height: 78px;
  gap: 16px;
}

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

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    min-height: 0;
    padding: 64px 0 62px;
  }

  .hero-card {
    max-width: 520px;
    transform: none;
  }

  .docs-layout {
    grid-template-columns: 1fr;
    gap: 34px;
    padding-top: 36px;
  }

  .sidebar {
    position: static;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--line);
  }

  .side-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3px 10px;
  }

  .nav-group {
    grid-column: 1 / -1;
  }

  .translation-link {
    margin-top: 20px;
  }
}

@media (max-width: 600px) {
  .header-inner,
  .footer-inner,
  .home,
  .docs-layout {
    width: min(100% - 32px, 1180px);
  }

  .top-nav {
    gap: 12px;
    font-size: 0.82rem;
  }

  .top-nav .github-link {
    display: none;
  }

  .hero h1 {
    font-size: 2.65rem;
  }

  .hero-lead {
    font-size: 1.02rem;
  }

  .home-catalog ul {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 16px 0;
  }
}