:root {
  --bg: #f6f8fc; --surface: #ffffff; --ink: #1c2330; --muted: #63708c;
  --line: #e6e9f0; --accent: #1d4ed8; --code-bg: #f2f4f8;
  --good: #1d7a3e; --warn: #8a5b00; --bad: #b3261e;
}
[data-theme="dark"] {
  --bg: #0f131b; --surface: #1a1f2b; --ink: #e6ebf3; --muted: #9aa6be;
  --line: #2b3242; --accent: #4d80ff; --code-bg: #222836;
  --good: #45d17e; --warn: #e0a83a; --bad: #ff6b60;
}
* { box-sizing: border-box; margin: 0; }
body { font: 16px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif;
       background: var(--bg); color: var(--ink); }

.docs-header { position: sticky; top: 0; z-index: 5; display: flex; align-items: center;
               gap: 1rem; flex-wrap: wrap; padding: .8rem 1.5rem; background: var(--surface);
               border-bottom: 1px solid var(--line); }
.docs-brand { display: flex; align-items: center; gap: .5rem; font-weight: 700;
              text-decoration: none; color: var(--ink); }
.docs-brand .logo { font-size: 1.3rem; }
.docs-nav { display: flex; gap: .3rem; flex-wrap: wrap; }
.docs-nav a { text-decoration: none; color: var(--muted); font-size: .88rem;
              padding: .3rem .6rem; border-radius: 6px; }
.docs-nav a:hover { background: var(--bg); color: var(--ink); }
.docs-nav a.active { color: var(--accent); font-weight: 600; }
.docs-actions { margin-left: auto; display: flex; gap: .5rem; align-items: center; }
.docs-actions a, .docs-actions button { text-decoration: none; color: var(--ink);
    background: var(--bg); border: 1px solid var(--line); border-radius: 6px;
    padding: .35rem .7rem; font-size: .85rem; cursor: pointer; }
.docs-actions a:hover, .docs-actions button:hover { border-color: var(--accent); }

.wrap { max-width: 860px; margin: 0 auto; padding: 2.5rem 1.5rem 5rem; }
.hero { text-align: center; padding: 1.5rem 0 2.5rem; }
.hero .hero-icon { font-size: 3rem; }
.hero h1 { font-size: 2.1rem; margin: .5rem 0; }
.hero p { color: var(--muted); font-size: 1.1rem; max-width: 640px; margin: 0 auto; }

h2 { font-size: 1.4rem; margin: 2.2rem 0 .8rem; padding-bottom: .3rem;
     border-bottom: 1px solid var(--line); }
h3 { font-size: 1.1rem; margin: 1.6rem 0 .5rem; }
p, li { margin: .5rem 0; }
ul, ol { padding-left: 1.4rem; }
a { color: var(--accent); }
code { background: var(--code-bg); padding: .1rem .4rem; border-radius: 4px;
       font-size: .9em; font-family: ui-monospace, "SF Mono", Consolas, monospace; }
pre { background: var(--code-bg); padding: 1rem 1.1rem; border-radius: 8px; overflow-x: auto;
      border: 1px solid var(--line); margin: .8rem 0; }
pre code { background: none; padding: 0; }
blockquote { border-left: 3px solid var(--accent); background: var(--surface);
             padding: .7rem 1.1rem; margin: 1rem 0; border-radius: 0 8px 8px 0; color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
         gap: 1rem; margin: 1.5rem 0; }
.card { display: block; text-decoration: none; color: var(--ink); background: var(--surface);
        border: 1px solid var(--line); border-radius: 10px; padding: 1.1rem 1.25rem;
        transition: border-color .12s, transform .12s; }
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card .card-ic { font-size: 1.5rem; }
.card h3 { margin: .4rem 0 .3rem; border: none; }
.card p { color: var(--muted); font-size: .9rem; margin: 0; }

table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .92rem; }
th, td { text-align: left; padding: .55rem .7rem; border-bottom: 1px solid var(--line);
         vertical-align: top; }
th { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }

.badge { display: inline-block; padding: .1rem .55rem; border-radius: 999px;
         font-size: .78rem; font-weight: 650; }
.badge.l1 { background: color-mix(in srgb, var(--muted) 20%, var(--surface)); }
.badge.l2 { background: color-mix(in srgb, var(--warn) 22%, var(--surface)); color: var(--warn); }
.badge.l3 { background: color-mix(in srgb, var(--good) 20%, var(--surface)); color: var(--good); }

.note { background: color-mix(in srgb, var(--accent) 8%, var(--surface));
        border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--surface));
        border-radius: 8px; padding: .8rem 1.1rem; margin: 1rem 0; }
.warn { background: color-mix(in srgb, var(--warn) 10%, var(--surface));
        border: 1px solid color-mix(in srgb, var(--warn) 30%, var(--surface));
        border-radius: 8px; padding: .8rem 1.1rem; margin: 1rem 0; }