@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
  --bg: #f0f4f2;
  --paper: #f8fcfa;
  --paper-2: #f2f8f5;
  --panel: rgba(248, 252, 250, 0.94);
  --ink: #12201d;
  --muted: #5a6b67;
  --line: rgba(18, 32, 29, 0.12);
  --teal: #0f766e;
  --teal-2: #14b8a6;
  --teal-dark: #0b514c;
  --amber: #d97706;
  --code-bg: #0d2320;
  --code-2: #122b27;
  --code-text: #d4f5ee;
  --radius: 18px;
  --shadow: 0 24px 55px rgba(18, 32, 29, 0.14);
  --shadow-sm: 0 8px 22px rgba(18, 32, 29, 0.06);
  --max: 1220px;

  /* syntax highlighting */
  --syn-kw: #7dd3fc;
  --syn-str: #86efac;
  --syn-cmt: #5a7a75;
  --syn-num: #fbbf24;
  --syn-lib: #c084fc;
  --syn-builtin: #67e8f9;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background:
    radial-gradient(ellipse at 0% 0%, rgba(20, 184, 166, .12), transparent 50%),
    radial-gradient(ellipse at 100% 100%, rgba(15, 118, 110, .07), transparent 50%),
    var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.sr-only { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); }

/* ─── Topbar ─────────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 14px 28px;
  background: rgba(240, 244, 242, 0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
}
.brand { display:flex; align-items:center; gap:12px; font-weight:800; }
.brand-mark {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(135deg, var(--teal), var(--teal-2));
  box-shadow: 0 6px 18px rgba(15, 118, 110, .30);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0;
}
.brand small { display:block; color:var(--muted); font-size:.7rem; font-weight:700; letter-spacing:.07em; text-transform:uppercase; }
.site-nav { display:flex; align-items:center; gap:2px; }
.site-nav a {
  padding: 9px 13px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
  font-size: .9rem;
  transition: .14s ease;
}
.site-nav a:hover, .site-nav a.active { color: var(--teal-dark); background: rgba(15,118,110,.09); }
.nav-toggle { display:none; border:1px solid var(--line); background:var(--paper); border-radius:12px; padding:8px; cursor:pointer; }
.nav-toggle svg { width:22px; height:22px; stroke:var(--ink); stroke-width:2; fill:none; }
main { min-height: calc(100vh - 82px); }

/* ─── Typography ─────────────────────────────────────────── */
.eyebrow { margin:0 0 10px; color:var(--teal-dark); text-transform:uppercase; font-weight:900; letter-spacing:.14em; font-size:.75rem; }
h1 { margin:0; font-size: 5.2rem; line-height:.92; letter-spacing:0; }
h2 { margin:0 0 12px; font-size: 2.7rem; line-height:.96; letter-spacing:0; }
h3 { margin: 26px 0 10px; font-size: 1.2rem; font-weight: 700; letter-spacing: 0; }
h4 { margin: 18px 0 8px; font-weight: 700; }
.lead { color: var(--muted); font-size: 1.18rem; max-width: 680px; }

/* ─── Buttons ─────────────────────────────────────────────── */
.hero-actions, .actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:22px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 11px 20px;
  font-weight: 700;
  font-size: .9rem;
  transition: .15s ease;
  cursor: pointer;
}
.button.teal { background:var(--teal); color:#fff; box-shadow:0 10px 24px rgba(15,118,110,.24); }
.button.teal:hover { background: var(--teal-dark); transform: translateY(-1px); }
.button.secondary { border-color: var(--line); background:rgba(255,255,255,.72); }
.button.secondary:hover { background: rgba(255,255,255,.9); transform: translateY(-1px); }
.button.subtle { background:rgba(15,118,110,.08); color:var(--teal-dark); }
.button.subtle:hover { background:rgba(15,118,110,.15); transform: translateY(-1px); }

/* ─── Hero ───────────────────────────────────────────────── */
.hero {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; align-items: center;
  padding: 72px 32px 56px;
}
.hero-metrics { display:flex; flex-wrap:wrap; gap:12px; margin-top:28px; }
.hero-metrics span {
  min-width: 120px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.62);
  border-radius: 14px;
  padding: 12px 16px;
}
.hero-metrics strong { display:block; font-size: .95rem; }
.hero-metrics small { color:var(--muted); font-size: .8rem; }
.hero-card img {
  border-radius: 20px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(18, 32, 29, .08);
  background: var(--paper-2);
}

/* ─── Code window ────────────────────────────────────────── */
.code-window {
  margin: -52px 20px 0;
  position: relative;
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 14px;
  box-shadow: 0 32px 64px rgba(0, 0, 0, .35), 0 0 0 1px rgba(20, 184, 166, .15), inset 0 1px 0 rgba(255, 255, 255, .05);
  overflow: hidden;
}
.window-bar { display:flex; align-items:center; gap:6px; padding:12px 14px; background:var(--code-2); border-bottom: 1px solid rgba(255,255,255,.05); }
.window-bar span { width:10px; height:10px; border-radius:50%; background:#f87171; }
.window-bar span:nth-child(2){background:#fbbf24}
.window-bar span:nth-child(3){background:#34d399}
.window-bar .file-label {
  margin-left: 10px;
  color: rgba(255,255,255,.35);
  font-family: 'JetBrains Mono', monospace;
  font-size: .72rem;
}
.code-window pre { margin:0; padding:16px; max-height:320px; overflow:auto; }

/* ─── Code & Syntax ──────────────────────────────────────── */
code {
  font-family: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: .875em;
}
:not(pre)>code {
  background: rgba(15,118,110,.10);
  color: var(--teal-dark);
  padding: 2px 6px;
  border-radius: 5px;
}
pre {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 12px;
  padding: 18px;
  overflow: auto;
  margin: 12px 0;
  line-height: 1.55;
  position: relative;
}

/* syntax highlighting tokens */
.syn-kw      { color: var(--syn-kw); }
.syn-str     { color: var(--syn-str); }
.syn-cmt     { color: var(--syn-cmt); font-style: italic; }
.syn-num     { color: var(--syn-num); }
.syn-lib     { color: var(--syn-lib); font-weight: 500; }
.syn-builtin { color: var(--syn-builtin); }

/* copy button */
.copy-btn {
  position: absolute;
  top: 10px; right: 10px;
  background: rgba(255, 255, 255, .08);
  color: rgba(255, 255, 255, .5);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: .75rem;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: .15s ease;
  z-index: 2;
  letter-spacing: .02em;
}
.copy-btn:hover { background: rgba(255,255,255,.16); color: #fff; border-color: rgba(255,255,255,.22); }
.copy-btn.copied { color: #86efac; border-color: rgba(134, 239, 172, .3); }

/* ─── Sections ───────────────────────────────────────────── */
.section { max-width: var(--max); margin: 0 auto; padding: 56px 32px; }
.section-head { max-width: 720px; margin-bottom: 24px; }
.page-title { max-width: 860px; margin: 0 auto; padding: 60px 32px 24px; }
.page-title p { color: var(--muted); font-size: 1.05rem; }

/* ─── Grid & Cards ───────────────────────────────────────── */
.grid { display:grid; gap:16px; }
.grid.two   { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.panel, .mini-card, .result-card, .code-panel, .doc-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow-sm);
  padding: 20px;
}
.panel h3:first-child, .doc-card h3:first-child { margin-top: 0; }
.muted, .panel p, .doc-card p { color: var(--muted); }

.doc-card[href] {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: .15s ease;
}
.doc-card[href]:hover, a.doc-card:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, .30);
  box-shadow: 0 14px 36px rgba(15, 118, 110, .10);
}
.doc-card h3 { margin-top: 0; font-size: 1rem; }
.doc-card p  { font-size: .9rem; margin: 6px 0 12px; }

/* ─── Callouts ────────────────────────────────────────────── */
.callout {
  margin: 16px 0;
  padding: 14px 16px;
  border-left: 4px solid var(--teal);
  background: rgba(15,118,110,.07);
  border-radius: 10px;
  font-size: .92rem;
}
.callout.warning { border-left-color: var(--amber); background: rgba(217,119,6,.08); }

/* ─── Comparison grid ─────────────────────────────────────── */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 16px 0;
  align-items: stretch;
}
/* Every direct child of comparison-grid stretches to full row height */
.comparison-grid > * {
  display: flex;
  flex-direction: column;
}
/* pre inside a comparison-grid panel fills the remaining space */
.comparison-grid > .code-panel > pre,
.comparison-grid > .panel > pre,
.comparison-grid > div > pre {
  flex: 1;
  margin-bottom: 0;
  min-height: 0;
}
.panel-title {
  color: var(--muted);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 10px;
  font-weight: 800;
  flex-shrink: 0;
}
.result-card pre { margin-top: 10px; }

/* side-by-side equal height */
.side-by-side {
  align-items: stretch;
}
.side-by-side > * {
  display: flex;
  flex-direction: column;
}
.side-by-side > * > pre {
  flex: 1;
  min-height: 0;
}

/* ─── Docs layout ─────────────────────────────────────────── */
:root { --docs-sidebar-width: 272px; }
.docs-layout {
  max-width: none;
  width: 100%;
  margin: 0;
  display: grid;
  grid-template-columns: var(--docs-sidebar-width) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding: 28px 36px 68px 0;
}
.docs-sidebar {
  position: sticky;
  top: 70px;
  left: 0;
  max-height: calc(100vh - 80px);
  overflow: auto;
  border: 1px solid var(--line);
  border-left: 0;
  border-radius: 0 20px 20px 0;
  background: rgba(255,255,255,.80);
  box-shadow: 12px 0 28px rgba(18,32,29,.045);
  padding: 16px 12px 20px 16px;
}
.docs-sidebar-header {
  position: sticky; top: -16px; z-index: 2;
  background: linear-gradient(rgba(255,255,255,.95), rgba(255,255,255,.85));
  padding: 8px 0 10px;
}
.docs-sidebar-header span { display:block; font-weight:800; margin-bottom: 8px; font-size: .88rem; letter-spacing: 0; }
.docs-sidebar input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 11px;
  background: #fff;
  font-size: .85rem;
  font-family: inherit;
}
.docs-tree { display:grid; gap:2px; }
.docs-tree a {
  display: block;
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--muted);
  font-weight: 600;
  font-size: .85rem;
  line-height: 1.25;
  transition: .12s ease;
}
.docs-tree a:hover { color: var(--teal-dark); background: rgba(15,118,110,.07); }
.docs-tree a.active {
  color: var(--teal-dark);
  background: rgba(15,118,110,.1);
}
.docs-tree a.active::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal);
  margin-right: 7px;
  vertical-align: middle;
}
.docs-content { min-width: 0; display: grid; gap: 20px; max-width: 1180px; }
.doc-topic {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(248, 252, 250, .92);
  padding: 28px;
  box-shadow: 0 10px 30px rgba(18, 32, 29, .06);
  scroll-margin-top: 88px;
  overflow-x: hidden;
}
.doc-topic > h2 { font-size: 2rem; margin-top: 0; }
.doc-topic > p { color: var(--muted); }
.doc-topic p { color: var(--muted); }
.doc-nav { display:flex; justify-content:space-between; gap:12px; margin-top:20px; }

/* ─── Tables ─────────────────────────────────────────────── */
.param-table, .data-table {
  width: 100%; border-collapse: collapse;
  overflow: hidden; border-radius: 12px;
  margin: 14px 0;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
}
.param-table th, .param-table td,
.data-table th, .data-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  font-size: .88rem;
}
.param-table th, .data-table th {
  background: rgba(15,118,110,.08);
  color: var(--teal-dark);
  font-size: .77rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 700;
}
.param-table tr:last-child td, .data-table tr:last-child td { border-bottom: 0; }

/* ─── Sequence list ──────────────────────────────────────── */
.sequence { counter-reset: step; display:grid; gap:8px; margin:14px 0; }
.sequence li {
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 13px 11px 46px;
  background: rgba(255,255,255,.60);
  position: relative;
  font-size: .92rem;
}
.sequence li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute; left: 13px; top: 10px;
  width: 22px; height: 22px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--teal);
  color: #fff;
  font-weight: 800;
  font-size: .77rem;
}

/* ─── Notes list ─────────────────────────────────────────── */
.note-list { margin: 10px 0; padding-left: 20px; }
.note-list li { margin: 5px 0; color: var(--muted); font-size: .92rem; }

/* ─── Function grid / cards ──────────────────────────────── */
.function-grid { display:grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap:14px; margin:14px 0; }
.function-card { border:1px solid var(--line); border-radius:16px; background:rgba(255,255,255,.62); padding:16px; }
.function-card h3 { margin-top:0; }
.signature {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 10px;
  padding: 10px 13px;
  overflow: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: .82rem;
  margin: 8px 0 10px;
  position: relative;
}

/* ─── Join / export labs ─────────────────────────────────── */
.lab-shell { display:grid; grid-template-columns:240px minmax(0,1fr); gap:18px; align-items:start; }
.lab-tabs { display:grid; gap:6px; }
.lab-tabs button {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 13px;
  background: var(--panel);
  font-weight: 700;
  font-size: .86rem;
  text-align: left;
  cursor: pointer;
  color: var(--muted);
  font-family: inherit;
  transition: .12s ease;
}
.lab-tabs button.active { background:rgba(15,118,110,.12); color:var(--teal-dark); border-color:rgba(15,118,110,.26); }
.lab-output { display:grid; gap:16px; width: 100%; margin-top: 16px; }
.side-by-side { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(15,118,110,.1);
  color: var(--teal-dark);
  font-weight: 700;
  font-size: .78rem;
}

/* ─── Pill row ───────────────────────────────────────────── */
.pill-row { display:flex; flex-wrap:wrap; gap:8px; align-items:flex-start; margin:12px 0; }
.pill-row > [data-join-output] { flex-basis:100%; }
.pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  background: var(--panel);
  font-weight: 700;
  font-size: .84rem;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  transition: .12s ease;
}
.pill.active { background:rgba(15,118,110,.12); color:var(--teal-dark); border-color:rgba(15,118,110,.28); }

/* ─── IDE ────────────────────────────────────────────────── */
.ide-grid { display:grid; grid-template-columns: 280px minmax(0, 1fr); gap:16px; }
.example-list { display:grid; gap:6px; }
.example-list button {
  text-align: left;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 12px;
  padding: 11px 13px;
  cursor: pointer;
  font-weight: 700;
  font-size: .86rem;
  color: var(--muted);
  font-family: inherit;
  transition: .12s ease;
}
.example-list button.active { background:rgba(15,118,110,.12); color:var(--teal-dark); }
#ide-editor {
  width: 100%; min-height: 400px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: .88rem;
  line-height: 1.5;
  resize: vertical;
}
.output-box {
  min-height: 160px;
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 12px;
  padding: 14px 16px;
  overflow: auto;
  white-space: pre-wrap;
  font-family: 'JetBrains Mono', monospace;
  font-size: .85rem;
  border: 1px solid rgba(255,255,255,.06);
}

/* ─── Method matrix ──────────────────────────────────────── */
.method-matrix td:first-child { font-weight: 700; }
.method-matrix td:nth-child(2), .method-matrix td:nth-child(3) { color: var(--muted); }

/* ─── Join lab ───────────────────────────────────────────── */
.join-setup-grid { display:grid; grid-template-columns: 1.05fr .95fr; gap:16px; align-items:start; }
.join-input-tables { display:grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap:16px; margin: 14px 0; }
.result-table-wrap { overflow: auto; }
.inline-warning { color: var(--amber); font-weight: 800; }

/* ─── Footer ─────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--line);
  padding: 36px 32px;
  color: var(--muted);
  font-size: .88rem;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand {
  font-weight: 800;
  color: var(--ink);
  font-size: .95rem;
  letter-spacing: 0;
}
.footer-brand small {
  display: block;
  color: var(--muted);
  font-weight: 500;
  font-size: .82rem;
  letter-spacing: 0;
  margin-top: 2px;
}
.footer-links { display:flex; gap:20px; flex-wrap:wrap; }
.footer-links a { color: var(--muted); font-weight: 600; transition: .12s ease; }
.footer-links a:hover { color: var(--teal-dark); }

/* ─── Callout links ──────────────────────────────────────── */
.callout a, .doc-topic a { color: var(--teal-dark); font-weight: 600; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.code-panel pre, .doc-topic pre { max-height: 520px; }
.hero-card .code-window pre { max-height: 360px; }
.doc-topic .param-table code { white-space: nowrap; }
.doc-topic h2 code, .doc-topic h3 code { font-size: .82em; }

/* Capability checklist */
.capability-toc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 18px;
  margin-top: 14px;
}
.capability-toc-grid a {
  display: block;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  color: var(--teal-dark);
  font-weight: 600;
  text-decoration: none;
}
.compact-list {
  columns: 2;
  column-gap: 36px;
  padding-left: 20px;
}
.compact-list li {
  break-inside: avoid;
  margin: 3px 0;
}
.capability-section pre {
  max-height: none;
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 940px) {
  .hero, .grid.two, .grid.three, .comparison-grid,
  .docs-layout, .lab-shell, .side-by-side, .ide-grid { grid-template-columns: 1fr; }
  .docs-layout { padding: 20px; }
  .docs-sidebar {
    position: static;
    border-left: 1px solid var(--line);
    border-radius: 16px;
    max-height: none;
  }
  .site-nav {
    display: none;
    position: absolute;
    right: 16px; left: 16px; top: 68px;
    flex-direction: column; align-items: stretch;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 10px;
    box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .hero { padding-top: 40px; }
  h1 { font-size: 3.4rem; }
  .function-grid, .join-setup-grid, .join-input-tables { grid-template-columns: 1fr; }
  .capability-toc-grid { grid-template-columns: 1fr; }
  .compact-list { columns: 1; }
  .footer-inner { flex-direction: column; gap: 20px; }
}
@media (min-width: 1180px) {
  .docs-layout { grid-template-columns: 280px minmax(0, 1fr); }
  .docs-content { max-width: 1240px; }
}


/* Developer onboarding additions */
.doc-topic code { font-weight: 600; }
.doc-topic .code-panel { margin-top: 14px; }
.docs-tree a.active::before { content: ""; }

/* ──────────────────────────────────────────────────────────
   v16 clean documentation layout
   Goal: simpler W3Schools / GeeksForGeeks-like docs, fewer visual blocks,
   fixed-feeling sidebar with independent scrolling.
────────────────────────────────────────────────────────── */
:root {
  --bg: #ffffff;
  --paper: #ffffff;
  --paper-2: #f7faf9;
  --panel: #ffffff;
  --ink: #111827;
  --muted: #4b5563;
  --line: #d8e0dd;
  --teal: #0f766e;
  --teal-2: #10b981;
  --teal-dark: #075e55;
  --code-bg: #111827;
  --code-2: #0b1220;
  --code-text: #e5e7eb;
  --radius: 8px;
  --shadow: none;
  --shadow-sm: none;
  --docs-sidebar-width: 292px;
}

body {
  background: #fff;
  color: var(--ink);
}

.topbar {
  min-height: 68px;
  padding: 12px 24px;
  background: #ffffff;
  backdrop-filter: none;
  border-bottom: 1px solid var(--line);
  box-shadow: none;
}
.brand-mark {
  border-radius: 6px;
  background: var(--teal);
  box-shadow: none;
}
.site-nav a {
  border-radius: 4px;
  padding: 8px 11px;
}
.site-nav a:hover,
.site-nav a.active {
  color: #fff;
  background: var(--teal);
}

/* Keep non-doc marketing pages pleasant but less heavy. */
.hero,
.section,
.page-title {
  max-width: 1120px;
}
.hero-metrics span,
.panel,
.mini-card,
.result-card,
.code-panel,
.doc-card,
.function-card {
  border-radius: 6px;
  background: #fff;
  box-shadow: none;
}
.hero-card img,
.code-window {
  border-radius: 8px;
  box-shadow: none;
}
.button {
  border-radius: 4px;
  box-shadow: none !important;
}
.button:hover { transform: none !important; }

/* Docs layout: sidebar remains visible while the article scrolls. */
.docs-layout {
  width: 100%;
  max-width: none;
  display: grid;
  grid-template-columns: var(--docs-sidebar-width) minmax(0, 1fr);
  gap: 0;
  align-items: start;
  padding: 0 0 72px 0;
  margin: 0;
}

.docs-sidebar {
  position: sticky;
  top: 68px;
  height: calc(100vh - 68px);
  max-height: calc(100vh - 68px);
  overflow-y: auto;
  overflow-x: hidden;
  background: #f8faf9;
  border: 0;
  border-right: 1px solid var(--line);
  border-radius: 0;
  box-shadow: none;
  padding: 14px 0 28px;
  scrollbar-width: thin;
  scrollbar-color: #aab7b3 transparent;
}
.docs-sidebar::-webkit-scrollbar { width: 8px; }
.docs-sidebar::-webkit-scrollbar-track { background: transparent; }
.docs-sidebar::-webkit-scrollbar-thumb { background: #aab7b3; border-radius: 999px; }

.docs-sidebar-header {
  position: sticky;
  top: 0;
  z-index: 3;
  background: #f8faf9;
  padding: 4px 16px 12px;
  border-bottom: 1px solid var(--line);
}
.docs-sidebar-header span {
  margin: 0 0 8px;
  font-size: .82rem;
  color: #374151;
}
.docs-sidebar input {
  border-radius: 4px;
  background: #fff;
  padding: 8px 9px;
}
.docs-tree {
  display: block;
  padding: 10px 0 0;
}
.docs-tree a {
  border-radius: 0;
  padding: 8px 18px;
  color: #374151;
  border-left: 4px solid transparent;
  font-weight: 500;
  font-size: .88rem;
}
.docs-tree a:hover {
  background: #eef6f3;
  color: var(--teal-dark);
}
.docs-tree a.active {
  background: #e2f2ed;
  color: var(--teal-dark);
  border-left-color: var(--teal);
  font-weight: 700;
}
.docs-tree a.active::before { display: none; }

.docs-content {
  display: block;
  width: 100%;
  max-width: 1040px;
  min-width: 0;
  padding: 0 40px 32px;
}

/* Page title now lives inside docs-content so the sidebar is present from top to bottom. */
.docs-page-title,
.docs-content > .page-title {
  max-width: 900px;
  margin: 0;
  padding: 42px 0 24px;
  border-bottom: 1px solid var(--line);
}
.docs-page-title h1,
.docs-content > .page-title h1 {
  font-size: clamp(2.15rem, 4vw, 3.4rem);
  line-height: 1.04;
}
.docs-page-title p:last-child,
.docs-content > .page-title p:last-child {
  max-width: 780px;
  margin-bottom: 0;
}

/* Documentation sections: no more big rounded cards everywhere. */
.doc-topic {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  overflow-x: visible;
  scroll-margin-top: 86px;
}
.doc-topic:last-child { border-bottom: 0; }
.doc-topic > h2 {
  font-size: clamp(1.55rem, 2.5vw, 2.05rem);
  line-height: 1.15;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid #edf1ef;
}
.doc-topic h3 {
  font-size: 1.08rem;
  margin-top: 24px;
}
.doc-topic p,
.muted,
.panel p,
.doc-card p {
  color: #4b5563;
}

/* Tables stay clear and readable, but less decorative. */
.param-table,
.data-table {
  border-radius: 0;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: none;
  display: table;
}
.param-table th,
.data-table th {
  background: #eef6f3;
  color: #064e45;
}
.param-table th,
.param-table td,
.data-table th,
.data-table td {
  padding: 9px 11px;
}

/* Code blocks remain strong and copyable. */
pre,
.signature,
.code-window {
  border-radius: 6px;
}
.code-panel {
  padding: 0;
  border: 0;
  background: transparent;
}
.panel-title {
  margin: 12px 0 6px;
}

/* Flatten cards into simple documentation links. */
.doc-card[href],
a.doc-card,
.panel,
.function-card,
.mini-card,
.result-card {
  border-radius: 0;
  box-shadow: none;
  background: #fff;
}
.doc-card[href],
a.doc-card {
  border: 1px solid var(--line);
  padding: 14px 16px;
}
.doc-card[href]:hover,
a.doc-card:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--teal);
  background: #f5fbf8;
}
.grid.three .doc-card,
.grid.two .doc-card {
  min-height: auto;
}

/* Simpler callouts and lists. */
.callout {
  border-radius: 0;
  background: #f3faf7;
  border-left: 4px solid var(--teal);
}
.sequence {
  display: block;
  margin-left: 0;
  padding-left: 0;
}
.sequence li {
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 5px 0 5px 34px;
}
.sequence li::before {
  left: 0;
  top: 6px;
  width: 22px;
  height: 22px;
  border-radius: 4px;
}

.footer {
  background: #fff;
  border-top: 1px solid var(--line);
}

@media (min-width: 1180px) {
  .docs-layout { grid-template-columns: var(--docs-sidebar-width) minmax(0, 1fr); }
  .docs-content { max-width: 1080px; }
}

@media (max-width: 940px) {
  .docs-layout {
    grid-template-columns: 1fr;
    padding: 0 18px 48px;
  }
  .docs-sidebar {
    position: static;
    height: auto;
    max-height: none;
    border: 1px solid var(--line);
    border-radius: 0;
    margin-top: 16px;
  }
  .docs-content {
    padding: 0;
    max-width: none;
  }
  .docs-page-title,
  .docs-content > .page-title {
    padding-top: 28px;
  }
  .site-nav a:hover,
  .site-nav a.active {
    color: var(--teal-dark);
    background: #eef6f3;
  }
}