*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #09090b;
  --surface: #18181b;
  --surface-hover: #27272a;
  --border: #27272a;
  --text: #f4f4f5;
  --text-dim: #a1a1aa;
  --accent: #10b981;
  --accent-bright: #34d399;
  --green: #10b981;
  --green-bright: #34d399;
  --red: #ef4444;
  --yellow: #f59e0b;
  --purple: #8b5cf6;
  --purple-bright: #a78bfa;
  --orange: #fb923c;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "SF Mono", "Fira Code", "Cascadia Code", monospace;
}
body { font-family: var(--font); background: var(--bg); color: var(--text); min-height: 100vh; line-height: 1.6; }
a { color: var(--accent-bright); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); background: var(--surface); padding: 1px 5px; border-radius: 4px; font-size: 0.9em; }
pre { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; overflow-x: auto; font-size: 13px; font-family: var(--mono); line-height: 1.5; margin: 12px 0; }
pre code { background: none; padding: 0; }

/* ── Header ────────────────────────────────────────────── */
.header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.header h1 { font-size: 18px; font-weight: 600; color: var(--accent-bright); }
.header .subtitle { font-size: 13px; color: var(--text-dim); margin-left: 12px; }
.header-title { display: flex; align-items: baseline; }
.nav-links { display: flex; gap: 12px; font-size: 13px; }
.nav-links a {
  color: var(--text-dim); padding: 4px 10px;
  border: 1px solid var(--border); border-radius: var(--radius);
}
.nav-links a:hover { color: var(--text); border-color: var(--text-dim); text-decoration: none; }

/* ── Layout ────────────────────────────────────────────── */
.page { max-width: 960px; margin: 0 auto; padding: 32px 24px 64px; }
.page h2 {
  font-size: 20px; font-weight: 700; margin: 36px 0 10px;
  padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.page h2:first-child { margin-top: 0; }
.page h3 { font-size: 15px; font-weight: 600; margin: 20px 0 6px; color: var(--accent); }
.page p { margin: 8px 0; font-size: 14px; }
.page ul, .page ol { margin: 8px 0 8px 20px; font-size: 14px; }
.page li { margin: 4px 0; }

/* ── Quick-start grid ──────────────────────────────────── */
.qs-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px; margin: 16px 0;
}
.qs-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px;
}
.qs-card .qs-num {
  display: inline-flex; width: 24px; height: 24px; align-items: center; justify-content: center;
  background: var(--accent); color: #fff; border-radius: 50%; font-size: 12px; font-weight: 700;
  margin-right: 8px; flex-shrink: 0;
}
.qs-card h4 { font-size: 14px; font-weight: 600; margin-bottom: 6px; display: flex; align-items: center; }
.qs-card p { font-size: 13px; color: var(--text-dim); margin: 0; }
.qs-card code { font-size: 12px; }

/* ── Systems map ───────────────────────────────────────── */
.sys-map {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; margin: 16px 0;
}
.sys-layer {
  margin-bottom: 20px; padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.sys-layer:last-child { margin-bottom: 0; border-bottom: none; padding-bottom: 0; }
.sys-layer-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px;
  font-weight: 700; margin-bottom: 10px;
}
.sys-layer-label.clients { color: var(--green); }
.sys-layer-label.api { color: var(--accent); }
.sys-layer-label.engine { color: var(--purple); }
.sys-layer-label.stores { color: var(--orange); }
.sys-layer-label.dispatch { color: var(--yellow); }

.sys-nodes { display: flex; flex-wrap: wrap; gap: 8px; }
.sys-node {
  background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.2);
  border-radius: 6px; padding: 6px 12px; font-size: 12px;
}
.sys-node.green { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.2); }
.sys-node.purple { background: rgba(139,92,246,0.08); border-color: rgba(139,92,246,0.2); }
.sys-node.orange { background: rgba(251,146,60,0.08); border-color: rgba(251,146,60,0.2); }
.sys-node.yellow { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.2); }

.sys-arrow {
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim); font-size: 14px; padding: 6px 0;
}

/* ── API reference table ───────────────────────────────── */
.api-table { width: 100%; border-collapse: collapse; font-size: 13px; margin: 12px 0; }
.api-table th {
  text-align: left; padding: 8px 10px; font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.3px; color: var(--text-dim); border-bottom: 1px solid var(--border);
}
.api-table td { padding: 6px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.api-table .method {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  padding: 1px 6px; border-radius: 4px; display: inline-block;
}
.api-table .method.get { background: rgba(16,185,129,0.15); color: var(--green); }
.api-table .method.post { background: rgba(16,185,129,0.1); color: var(--accent-bright); }
.api-table .method.put { background: rgba(245,158,11,0.15); color: var(--yellow); }
.api-table .method.delete { background: rgba(239,68,68,0.15); color: var(--red); }
.api-table .path { font-family: var(--mono); font-size: 12px; }
.api-table .auth-badge {
  font-size: 10px; padding: 1px 6px; border-radius: 10px;
  background: rgba(139,143,163,0.15); color: var(--text-dim); white-space: nowrap;
}
.api-table .auth-badge.admin { background: rgba(248,113,113,0.12); color: var(--red); }
.api-table .auth-badge.public { background: rgba(16,185,129,0.12); color: var(--green); }

/* ── Env table ─────────────────────────────────────────── */
.env-grid {
  display: grid; grid-template-columns: 1fr 2fr; gap: 0; margin: 12px 0;
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
}
.env-grid .ek, .env-grid .ev {
  padding: 8px 12px; font-size: 13px; border-bottom: 1px solid var(--border);
}
.env-grid .ek { font-family: var(--mono); font-size: 12px; background: var(--surface); font-weight: 500; }
.env-grid .ev { color: var(--text-dim); }

.footer-note {
  margin-top: 32px;
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
  .page { padding: 20px 16px 48px; }
  .qs-grid { grid-template-columns: 1fr; }
  .env-grid { grid-template-columns: 1fr; }
  .env-grid .ek { border-bottom: none; padding-bottom: 2px; }
  .env-grid .ev { padding-top: 0; }
  .header { padding: 12px 16px; flex-wrap: wrap; gap: 12px; }
  .header h1 { font-size: 16px; }
  .header .subtitle { font-size: 12px; margin-left: 8px; }
  .nav-links { gap: 8px; }
}