:root{--accent:#0ea597;--accent-ink:#0b7f73;--accent-soft:rgba(14,165,151,0.08);--bg:#fbfcfc;--surface:#ffffff;--sidebar-bg:#f6f8f9;--panel:#ffffff;--panel-hover:#f4f7f8;--border:rgba(3,44,59,0.1);--border-strong:rgba(3,44,59,0.18);--heading:#04222c;--text:#213c44;--text-muted:#58717a;--text-faint:#8497a0;--tip-bg:rgba(14,165,151,0.07);--tip-border:rgba(14,165,151,0.28);--info-bg:rgba(59,130,170,0.07);--info-border:rgba(59,130,170,0.28);--warn-bg:rgba(214,142,32,0.09);--warn-border:rgba(214,142,32,0.34);--topbar-h:56px;--sidebar-w:270px;--content-max:760px;--radius:10px}*{box-sizing:border-box}html{color-scheme:light;scroll-behavior:smooth;scrollbar-gutter:stable}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-feature-settings:"cv01","cv03","ss03";background:var(--bg);color:var(--text);font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(820px 360px at 50% -200px,rgba(14,165,151,.07),transparent 70%);z-index:-1}::selection{background:rgba(14,165,151,.22)}::-webkit-scrollbar{width:11px;height:11px}::-webkit-scrollbar-thumb{background:rgba(3,44,59,.16);border-radius:10px;border:3px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:rgba(3,44,59,.28);background-clip:content-box}a{color:var(--accent-ink);text-decoration:none}a:hover{color:var(--heading)}.topbar{position:fixed;top:0;left:0;right:0;height:var(--topbar-h);display:flex;align-items:center;gap:13px;padding:0 22px;background:rgba(255,255,255,.78);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--border);z-index:30}.topbar .logo{height:19px;width:auto}.topbar .divider{width:1px;height:20px;background:var(--border-strong)}.topbar .docs-label{font-weight:560;font-size:14px;color:var(--heading);letter-spacing:-.01em}.topbar-right{margin-left:auto;display:flex;align-items:center;gap:10px}.topbar .badge{font-size:11.5px;font-weight:500;border:1px solid var(--border);padding:4px 10px;border-radius:7px}.search-trigger,.topbar .badge{color:var(--text-muted);background:var(--surface)}.search-trigger{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 9px 0 11px;border:1px solid var(--border);border-radius:8px;font-size:13px;font-family:inherit;cursor:pointer;transition:border-color .12s ease,color .12s ease,background .12s ease}.search-trigger:hover{border-color:var(--border-strong);color:var(--heading);background:var(--panel-hover)}.search-trigger svg{width:15px;height:15px;opacity:.8}.st-label{font-weight:450}.st-kbd{font-family:inherit;font-size:11px;font-weight:600;color:var(--text-faint);background:var(--bg);border:1px solid var(--border);border-radius:5px;padding:1px 5px;line-height:1.5}@media (max-width:620px){.st-kbd,.st-label{display:none}.search-trigger{padding:0 8px}}.search-overlay{position:fixed;inset:0;z-index:60;background:rgba(4,22,28,.32);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);display:flex;justify-content:center;align-items:flex-start;padding:12vh 20px 20px}.search-modal{width:100%;max-width:600px;background:var(--surface);border:1px solid var(--border-strong);border-radius:14px;box-shadow:0 24px 70px rgba(3,44,59,.28);overflow:hidden;display:flex;flex-direction:column;max-height:70vh}.search-input-row{display:flex;align-items:center;gap:11px;padding:15px 17px;border-bottom:1px solid var(--border)}.si-icon{width:18px;height:18px;color:var(--text-faint);flex:none}.search-input{flex:1 1;border:0;outline:0;background:transparent;font-family:inherit;font-size:1.02rem;color:var(--heading)}.search-input::placeholder{color:var(--text-faint)}.esc-kbd{font-family:inherit;font-size:11px;font-weight:600;color:var(--text-faint);background:var(--bg);border:1px solid var(--border);border-radius:5px;padding:2px 6px}.search-results{overflow-y:auto;padding:8px}.search-empty{padding:26px 14px;text-align:center;color:var(--text-faint);font-size:.92rem}.search-hit{display:block;width:100%;text-align:left;cursor:pointer;background:transparent;border:0;border-radius:9px;padding:10px 12px;font-family:inherit;color:var(--text)}.search-hit.active{background:var(--accent-soft)}.hit-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.hit-title{font-size:.95rem;font-weight:600;color:var(--heading);letter-spacing:-.01em}.search-hit.active .hit-title{color:var(--accent-ink)}.hit-chapter{font-size:11px;color:var(--text-faint);white-space:nowrap;flex:none}.hit-snippet{margin-top:3px;font-size:.84rem;color:var(--text-muted);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.search-foot{display:flex;gap:16px;padding:9px 16px;border-top:1px solid var(--border);font-size:11.5px;color:var(--text-faint)}.search-foot kbd{font-family:inherit;font-weight:600;background:var(--bg);border:1px solid var(--border);border-radius:4px;padding:0 4px;margin-right:3px}.app{display:flex;min-height:100vh}.sidebar{position:fixed;top:var(--topbar-h);bottom:0;left:0;width:var(--sidebar-w);background:var(--sidebar-bg);border-right:1px solid var(--border);overflow-y:auto;padding:20px 14px 40px}.sidebar .group{margin-bottom:20px}.sidebar .group-title{font-size:11px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--text-faint);padding:0 10px;margin-bottom:7px}.sidebar a.nav-item{display:block;padding:6px 10px;border-radius:7px;color:var(--text-muted);font-size:13.5px;font-weight:450;line-height:1.35;margin-bottom:1px;letter-spacing:-.005em;transition:color .12s ease,background .12s ease}.sidebar a.nav-item:hover{background:var(--panel-hover);color:var(--heading)}.sidebar a.nav-item.active{background:var(--accent-soft);color:var(--accent-ink);font-weight:550}.main{margin-left:var(--sidebar-w);margin-top:var(--topbar-h);flex:1 1;display:flex;justify-content:center;padding:56px 48px 110px}.content{width:100%;max-width:var(--content-max)}.eyebrow{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink);margin-bottom:14px}.content h1,.content h2,.content h3{scroll-margin-top:78px}.content h1{font-size:1.7rem;line-height:1.2;letter-spacing:-.022em;margin:0 0 14px}.content h1,.content h2{font-weight:600;color:var(--heading)}.content h2{font-size:1.28rem;line-height:1.35;letter-spacing:-.018em;margin:46px 0 14px;padding-bottom:9px;border-bottom:1px solid var(--border)}.content h3{font-size:1.06rem;line-height:1.4;letter-spacing:-.012em;margin:30px 0 10px}.content h3,.content h4{font-weight:600;color:var(--heading)}.content h4{font-size:.95rem;margin:22px 0 8px}.content p{margin:13px 0;color:var(--text)}.content ol,.content ul{padding-left:20px}.content li{margin:6px 0;color:var(--text)}.content li::marker{color:var(--text-faint)}.content strong{color:var(--heading);font-weight:600}.content hr{border:0;border-top:1px solid var(--border);margin:34px 0}.content code{background:#eef2f4;border:1px solid var(--border);padding:1px 6px;border-radius:6px;font-size:.85em;color:#0a5f57;font-family:SF Mono,ui-monospace,JetBrains Mono,Menlo,monospace}.content img{display:block;max-width:100%;height:auto;border:1px solid var(--border);border-radius:var(--radius);margin:18px 0 28px;box-shadow:0 1px 2px rgba(3,44,59,.04),0 10px 30px rgba(3,44,59,.07)}.content table{width:100%;border-collapse:separate;border-spacing:0;margin:20px 0;font-size:.92rem;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.content th{background:var(--sidebar-bg);text-align:left;font-weight:600;color:var(--heading);padding:9px 14px;font-size:.86rem}.content td{padding:9px 14px;border-top:1px solid var(--border);color:var(--text-muted)}.content tbody tr:hover td{background:rgba(3,44,59,.015)}.content blockquote{margin:22px 0;padding:14px 18px;border:1px solid var(--tip-border);border-radius:12px;background:var(--tip-bg);color:var(--text-muted);font-size:.94rem}.content blockquote p{margin:6px 0}.content blockquote p:first-child{margin-top:0}.content blockquote p:last-child{margin-bottom:0}.content blockquote.tip{background:var(--tip-bg);border-color:var(--tip-border)}.content blockquote.info{background:var(--info-bg);border-color:var(--info-border)}.content blockquote.warn{background:var(--warn-bg);border-color:var(--warn-border)}.hero-sub{font-size:1.05rem;color:var(--text-muted);max-width:600px;margin:0 0 32px}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));grid-gap:12px;gap:12px;margin-top:4px}.card{display:block;padding:16px 18px;border-radius:var(--radius);border:1px solid var(--border);background:var(--panel);transition:border-color .14s ease,box-shadow .14s ease,transform .14s ease}.card,.card:hover{color:var(--heading)}.card:hover{border-color:var(--border-strong);transform:translateY(-1px);box-shadow:0 6px 20px rgba(3,44,59,.07)}.card .num{font-size:11px;font-weight:600;letter-spacing:.06em;color:var(--accent-ink);font-family:SF Mono,ui-monospace,monospace;margin-bottom:7px}.card .t{font-weight:550;font-size:.98rem;line-height:1.35;letter-spacing:-.01em}.home-tip{margin-top:30px;padding:14px 18px;border-radius:12px;background:var(--tip-bg);border:1px solid var(--tip-border);color:var(--text-muted);font-size:.94rem}.landing{max-width:820px}.landing .hero{padding:8px 0 4px}.landing h1{font-size:2.3rem;line-height:1.12;letter-spacing:-.03em;margin:0 0 16px}.landing .hero-sub{font-size:1.12rem;line-height:1.6;max-width:620px;margin:0 0 26px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:4px}.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 17px;border-radius:9px;font-size:.93rem;font-weight:550;letter-spacing:-.01em;cursor:pointer;transition:all .14s ease}.btn-primary{background:var(--accent);color:#fff;border:1px solid var(--accent)}.btn-primary:hover{background:var(--accent-ink);border-color:var(--accent-ink);color:#fff}.btn-secondary{background:var(--surface);color:var(--heading);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--border-strong);color:var(--heading);background:var(--panel-hover)}.landing-section{margin-top:46px}.landing-section .sec-title{font-size:.8rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--text-faint);margin-bottom:13px}.sidebar .home-link{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:7px;margin-bottom:18px;color:var(--text-muted);font-size:13.5px;font-weight:500;transition:color .12s ease,background .12s ease}.sidebar .home-link svg{width:15px;height:15px;opacity:.8}.sidebar .home-link:hover{background:var(--panel-hover);color:var(--heading)}.sidebar .home-link.active{background:var(--accent-soft);color:var(--accent-ink);font-weight:550}.chapter-nav{display:flex;justify-content:space-between;gap:16px;margin-top:56px;border-top:1px solid var(--border);padding-top:22px}.chapter-nav a{color:var(--text-muted);font-weight:500;font-size:.92rem}.chapter-nav a:hover{color:var(--accent-ink)}.chapter-nav .lbl{display:block;font-size:11px;color:var(--text-faint);text-transform:uppercase;letter-spacing:.08em;margin-bottom:3px}@media (max-width:880px){.sidebar{display:none}.main{margin-left:0;padding:32px 18px 80px}}