/* VenJS Documentation — shared stylesheet */
:root {
  --bg: #0b1220;
  --bg-soft: #0f172a;
  --surface: #111c33;
  --surface-2: #16233f;
  --border: #223049;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --accent: #14b8a6;
  --accent-soft: #0f766e;
  --accent-ink: #5eead4;
  --code-bg: #0a1424;
  --link: #5eead4;
  --radius: 14px;
  --sidebar-w: 280px;
  --header-h: 60px;
  --maxw: 880px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Layout ---------- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex: 0 0 var(--sidebar-w);
  background: var(--bg-soft);
  border-right: 1px solid var(--border);
  position: sticky;
  top: 0;
  align-self: flex-start;
  height: 100vh;
  overflow-y: auto;
  padding: 18px 14px 40px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.brand .name { font-weight: 800; font-size: 18px; letter-spacing: -0.02em; }
.brand .ver { font-size: 11px; color: var(--accent-ink); background: rgba(20,184,166,0.12); padding: 2px 7px; border-radius: 999px; }

.nav-group { margin-bottom: 14px; }
.nav-group > .group-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  padding: 6px 10px;
  font-weight: 700;
}
.nav-group a {
  display: block;
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 14px;
}
.nav-group a:hover { background: var(--surface); color: var(--text); text-decoration: none; }
.nav-group a.active { background: rgba(20,184,166,0.14); color: var(--accent-ink); font-weight: 600; }

.content {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0 0 80px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 28px;
  background: rgba(11,18,32,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header .crumbs { color: var(--text-dim); font-size: 14px; }
.header .spacer { flex: 1; }
.header .ghost-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 7px 12px;
  border-radius: 9px;
  font-size: 13px;
}
.header .ghost-btn:hover { border-color: var(--accent); text-decoration: none; }
.menu-toggle { display: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 36px 28px 0; }

/* ---------- Typography ---------- */
h1 { font-size: 34px; line-height: 1.15; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 24px; margin: 40px 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); letter-spacing: -0.01em; }
h3 { font-size: 18px; margin: 28px 0 8px; }
h4 { font-size: 15px; margin: 20px 0 6px; color: var(--accent-ink); text-transform: uppercase; letter-spacing: 0.04em; }
p { margin: 12px 0; color: var(--text); }
.subtitle { color: var(--text-dim); font-size: 17px; margin-top: 0; }
.lead { font-size: 18px; color: var(--text-dim); }

ul, ol { padding-left: 22px; }
li { margin: 6px 0; }

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(1200px 400px at 20% -10%, rgba(20,184,166,0.18), transparent 60%),
              linear-gradient(180deg, var(--surface), var(--bg));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  margin-bottom: 36px;
}
.hero .badge { display: inline-block; font-size: 12px; color: var(--accent-ink); border: 1px solid var(--accent-soft); border-radius: 999px; padding: 4px 12px; margin-bottom: 16px; }
.hero h1 { font-size: 42px; }
.hero p { font-size: 18px; color: var(--text-dim); max-width: 640px; }
.hero .cta { margin-top: 22px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 11px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
}
.btn-primary { background: var(--accent); color: #04211d; }
.btn-primary:hover { background: var(--accent-ink); text-decoration: none; }
.btn-outline { border: 1px solid var(--border); color: var(--text); background: var(--surface); }
.btn-outline:hover { border-color: var(--accent); text-decoration: none; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); margin: 18px 0; }
.card-link {
  display: block;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 18px;
  color: var(--text);
  transition: border-color .15s, transform .15s;
}
.card-link:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-2px); }
.card-link h3 { margin: 0 0 6px; font-size: 17px; }
.card-link p { margin: 0; color: var(--text-dim); font-size: 14px; }
.card-link .tag { font-size: 11px; color: var(--accent-ink); }

.feature { display: flex; gap: 12px; align-items: flex-start; padding: 12px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); margin: 10px 0; }
.feature .ic { font-size: 20px; line-height: 1.2; }
.feature b { color: var(--text); }

/* ---------- Code ---------- */
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  overflow-x: auto;
  margin: 16px 0;
  font-size: 13.5px;
  line-height: 1.6;
}
code {
  font-family: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
:not(pre) > code {
  background: rgba(148,163,184,0.14);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 0.88em;
  color: #cbd5e1;
}
pre code { color: #cbd5e1; }

.token-key { color: #5eead4; }
.token-str { color: #fbbf24; }
.token-num { color: #f472b6; }
.token-com { color: #64748b; font-style: italic; }
.token-fn { color: #93c5fd; }

/* ---------- Copy button ---------- */
.code-wrap {
  position: relative;
  margin: 16px 0;
}
.code-wrap pre {
  margin: 0;
  padding-right: 80px;
}
.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: all .15s;
}
.copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent-ink);
}
.copy-btn.copied {
  border-color: var(--accent);
  color: var(--accent-ink);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--accent-ink); font-weight: 700; background: var(--surface); }
td code { font-size: 13px; }

.note {
  border-left: 3px solid var(--accent);
  background: var(--surface);
  padding: 12px 16px;
  border-radius: 0 10px 10px 0;
  margin: 16px 0;
  font-size: 14.5px;
}
.note.warn { border-color: #f59e0b; }
.note.danger { border-color: #ef4444; }
.note b { color: var(--text); }

.signature {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13.5px;
  color: var(--accent-ink);
  margin: 14px 0;
}

.footer { max-width: var(--maxw); margin: 40px auto 0; padding: 20px 28px 0; border-top: 1px solid var(--border); color: var(--text-dim); font-size: 13px; }

.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 40px; }
.pager a { flex: 1; border: 1px solid var(--border); border-radius: 12px; padding: 14px 18px; color: var(--text); background: var(--surface); }
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager .dir { font-size: 12px; color: var(--text-dim); }
.pager .ttl { font-weight: 600; }
.pager a.next { text-align: right; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .sidebar { position: fixed; left: 0; top: 0; transform: translateX(-100%); transition: transform .2s; z-index: 40; box-shadow: 0 0 40px rgba(0,0,0,0.5); }
  .sidebar.open { transform: translateX(0); }
  .menu-toggle { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 9px; padding: 7px 12px; font-size: 13px; cursor: pointer; }
  .scrim { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 30; }
  .scrim.show { display: block; }
}
@media (min-width: 921px) { .scrim { display: none !important; } }

/* ---------- Live examples (docs/examples.html) ---------- */
.demo {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  padding: 20px;
  margin: 16px 0;
}
.demo h4 { margin-top: 0; }
.demo-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.demo-count {
  font-family: "JetBrains Mono", monospace;
  background: rgba(20,184,166,0.12);
  color: var(--accent-ink);
  padding: 6px 12px;
  border-radius: 8px;
  min-width: 90px;
  text-align: center;
}
.demo-pill {
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}
.demo-status { font-size: 13px; color: var(--text-dim); margin-top: 8px; }
.demo-mini-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-radius: 10px;
  background: var(--bg-soft); border: 1px solid var(--border);
  margin-bottom: 12px;
}
.demo-mini-bar .title { font-weight: 800; color: var(--accent); }
.demo-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  margin-top: 12px;
}
.demo-box {
  width: 160px; height: 90px;
  border-radius: 12px;
  background: linear-gradient(135deg, #14b8a6, #0ea5e9);
  display: flex; align-items: center; justify-content: center;
  color: #04211d; font-weight: 700;
}