:root {
  --bg: #ffffff;
  --bg-soft: #f6f8f9;
  --bg-code: #f6f8fa;
  --text: #1b1f24;
  --muted: #59636e;
  --border: #e3e7eb;
  --accent: #0e7c86;
  --accent-strong: #0a636b;
  --accent-soft: #e6f4f5;
  --shadow: 0 1px 2px rgb(16 24 40 / 0.04), 0 8px 24px rgb(16 24 40 / 0.06);
  --radius: 12px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --bg-soft: #131a22;
    --bg-code: #161b22;
    --text: #e6edf3;
    --muted: #9aa5b1;
    --border: #262f3a;
    --accent: #3cc4cf;
    --accent-strong: #6fd7df;
    --accent-soft: #0f2a2e;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.3);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-strong); text-decoration: underline; }
code, pre { font-family: var(--mono); font-size: 0.9em; }
img { max-width: 100%; }

/* Header and footer */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner, .footer-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 12px;
}
.topbar-inner { height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; color: var(--text); }
.brand:hover { color: var(--text); text-decoration: none; }
.version {
  font: 500 0.75rem var(--mono); color: var(--accent);
  background: var(--accent-soft); padding: 2px 8px; border-radius: 999px;
}
.topnav { margin-left: auto; display: flex; gap: 22px; }
.topnav a { color: var(--muted); font-weight: 500; font-size: 0.95rem; }
.topnav a:hover { color: var(--text); text-decoration: none; }
.footer { border-top: 1px solid var(--border); margin-top: 64px; color: var(--muted); font-size: 0.9rem; }
.footer-inner { min-height: 72px; flex-wrap: wrap; justify-content: space-between; padding-top: 16px; padding-bottom: 16px; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); }

/* Home */
.hero {
  max-width: 1280px; margin: 0 auto; padding: 72px 24px 56px;
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 48px; align-items: center;
}
.eyebrow { color: var(--accent); font-weight: 600; font-size: 0.9rem; letter-spacing: 0.04em; text-transform: uppercase; margin: 0 0 12px; }
.hero h1 { font-size: clamp(2rem, 4vw, 3.1rem); line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 20px; }
.lead { color: var(--muted); font-size: 1.12rem; margin: 0 0 28px; max-width: 60ch; }
.lead code { color: var(--text); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.button {
  display: inline-block; padding: 10px 18px; border-radius: 10px; font-weight: 600;
  border: 1px solid var(--border); color: var(--text); background: var(--bg);
}
.button:hover { text-decoration: none; color: var(--text); border-color: var(--muted); }
.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.button.primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: #fff; }
@media (prefers-color-scheme: dark) {
  .button.primary, .button.primary:hover { color: #071417; }
}

.window {
  background: var(--bg-code); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; min-width: 0;
}
.window-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--border); }
.window-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.window-bar em { margin-left: 8px; font: 0.8rem var(--mono); font-style: normal; color: var(--muted); }
.window pre { margin: 0; padding: 18px 20px; overflow-x: auto; background: transparent !important; font-size: 0.85rem; line-height: 1.7; }

.features, .example { max-width: 1280px; margin: 0 auto; padding: 40px 24px; }
.features h2, .example h2 { font-size: 1.75rem; letter-spacing: -0.01em; margin: 0 0 24px; }
.grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.card {
  display: block; padding: 20px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-soft); color: var(--text); transition: border-color 0.15s, transform 0.15s;
}
.card:hover { text-decoration: none; color: var(--text); border-color: var(--accent); transform: translateY(-2px); }
.card h3 { margin: 0 0 6px; font-size: 1.02rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.93rem; line-height: 1.55; }
.example { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 48px; align-items: center; }
.example-text p { color: var(--muted); }
.checks { list-style: none; padding: 0; margin: 20px 0 0; }
.checks li { padding-left: 28px; position: relative; margin: 8px 0; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 0.45em; width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.2 2.2 4.8-4.8' fill='none' stroke='%230e7c86' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat;
}

/* Docs */
.docs-layout {
  max-width: 1280px; margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 230px minmax(0, 1fr) 210px; gap: 40px;
}
.sidebar, .toc { position: sticky; top: 60px; align-self: start; max-height: calc(100vh - 60px); overflow-y: auto; padding: 28px 0; font-size: 0.92rem; }
.sidebar summary { display: none; }
.sidebar-title { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 20px 0 6px; }
.sidebar-title:first-of-type { margin-top: 0; }
.sidebar ul, .toc ul { list-style: none; padding: 0; margin: 0; }
.sidebar a, .toc a { display: block; padding: 4px 10px; border-radius: 6px; color: var(--muted); }
.sidebar a:hover, .toc a:hover { color: var(--text); text-decoration: none; background: var(--bg-soft); }
.sidebar a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.toc a { padding: 3px 0; border-radius: 0; }
.toc a:hover { background: none; }
.content { min-width: 0; padding: 36px 0 0; }
.edit { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 0.9rem; }

.prose { max-width: 780px; }
.prose h1 { font-size: 2.2rem; letter-spacing: -0.02em; line-height: 1.2; margin: 0 0 20px; }
.prose h2 { font-size: 1.5rem; margin: 44px 0 12px; padding-top: 8px; letter-spacing: -0.01em; }
.prose h3 { font-size: 1.15rem; margin: 30px 0 8px; }
.prose p, .prose ul, .prose ol { margin: 0 0 16px; }
.prose li { margin: 4px 0; }
.prose :not(pre) > code { background: var(--bg-code); border: 1px solid var(--border); padding: 0.1em 0.35em; border-radius: 5px; font-size: 0.86em; }
.prose pre { background: var(--bg-code) !important; border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; overflow-x: auto; font-size: 0.85rem; line-height: 1.65; margin: 0 0 20px; }
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: 0.93rem; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; vertical-align: top; }
.prose th { background: var(--bg-soft); font-weight: 600; }
.prose blockquote { margin: 0 0 16px; padding: 4px 16px; border-left: 3px solid var(--accent); color: var(--muted); background: var(--bg-soft); border-radius: 0 8px 8px 0; }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 32px 0; }

.notfound { max-width: 640px; margin: 0 auto; padding: 96px 24px; text-align: center; }

/* Narrow screens */
@media (max-width: 1100px) {
  .docs-layout { grid-template-columns: 210px minmax(0, 1fr); }
  .toc { display: none; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 800px) {
  .hero, .example { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .hero { padding-top: 48px; }
  .docs-layout { grid-template-columns: minmax(0, 1fr); gap: 0; padding: 0 16px; }
  .sidebar { position: static; max-height: none; padding: 16px 0 0; border-bottom: 1px solid var(--border); }
  .sidebar summary { display: block; cursor: pointer; font-weight: 600; padding: 4px 0 12px; }
  .sidebar:not([open]) { padding-bottom: 4px; }
  .content { padding-top: 20px; }
  .topbar-inner, .footer-inner, .hero, .features, .example { padding-left: 16px; padding-right: 16px; }
  .topnav { gap: 14px; }
}
@media (max-width: 520px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
  .version { display: none; }
}