.doc-nav { position: sticky; top: 0; z-index: 10; background: rgba(5,7,13,.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.doc-nav .in { max-width: 920px; margin: 0 auto; padding: 0 20px; height: 64px; display: flex; align-items: center; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font: 700 17px var(--font-head); }
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.brand b { margin-left: 3px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.doc { max-width: 920px; margin: 0 auto; padding: 48px 20px 80px; }
.doc h1 { font-size: clamp(32px, 5vw, 46px); }
.doc h2 { margin-top: 48px; font-size: 26px; padding-top: 8px; scroll-margin-top: 80px; }
.doc h3 { margin-top: 28px; font-size: 18px; }
.doc p, .doc li { color: #c3cfe8; }
.doc table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
.doc th, .doc td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.doc :not(pre) > code { font-size: .88em; padding: .15em .45em; border-radius: 6px; background: rgba(125,180,255,.12); color: #bfe9ff; }
.doc .code-block pre { color: #c9d6f2; }
.callout { padding: 14px 18px; border-radius: 14px; background: rgba(79,124,255,.1); border: 1px solid var(--line-2); margin: 18px 0; }
@media (max-width: 640px) { .doc { padding-top: 28px; } .doc table { display: block; overflow-x: auto; } }