:root{--bg:#fafafa;--fg:#1a1a1a;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-light:#dbeafe;--accent-subtle:#eff6ff;--border:#e5e7eb;--muted:#6b7280;--surface:#ffffff;--radius:8px;--sidebar-width:260px;--code-bg:#1e1e2e;--code-fg:#cdd6f4;--callout-warn-bg:#fffbeb;--callout-warn-border:#f59e0b;--card-shadow:rgba(37, 99, 235, 0.08)}[data-theme=dark]{--bg:#0f0f13;--fg:#e4e4e7;--accent:#60a5fa;--accent-hover:#93bbfd;--accent-light:#1e293b;--accent-subtle:#1a1a2e;--border:#2a2a3a;--muted:#9ca3af;--surface:#16161e;--code-bg:#12121a;--code-fg:#cdd6f4;--callout-warn-bg:#1c1a0e;--callout-warn-border:#f59e0b;--card-shadow:rgba(96, 165, 250, 0.06)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,segoe ui,Roboto,sans-serif;line-height:1.7;transition:background .2s,color .2s}.sidebar,.content-wrapper,.home-card,.section-card,.toc,.callout,header,footer{transition:background .2s,color .2s,border-color 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ol{margin:.5rem 0 1rem 1.5rem}.doc-content li{margin-bottom:.3rem}.doc-content blockquote{border-left:3px solid var(--accent);padding:.75rem 1rem;margin:1rem 0;background:var(--accent-subtle);border-radius:0 var(--radius)var(--radius)0}.doc-content blockquote p{margin-bottom:0;color:var(--fg)}.doc-content table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.9rem}.doc-content th,.doc-content td{border:1px solid var(--border);padding:.5rem .75rem;text-align:left}.doc-content th{background:var(--accent-light);font-weight:600}.doc-content code{background:var(--accent-light);padding:.15rem .4rem;border-radius:3px;font-size:.88em;font-family:sf mono,fira code,cascadia code,Menlo,monospace}.doc-content pre{background:var(--code-bg);color:var(--code-fg);padding:1.25rem;border-radius:var(--radius);overflow-x:auto;margin:1rem 0;line-height:1.5}.doc-content pre code{background:0 0;padding:0;color:inherit;font-size:.88rem}.doc-content pre.state-machine{background:var(--surface);color:var(--fg);border:1px solid var(--border);font-size:.85rem}.section-pages{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem;margin:1.5rem 0}.section-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem 1.5rem;text-decoration:none;transition:border-color .15s}.section-card:hover{border-color:var(--accent);text-decoration:none}.section-card h3{color:var(--fg);font-size:1rem;margin-bottom:.25rem}.section-card p{color:var(--muted);font-size:.9rem;margin:0}.toc{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem 1.25rem;margin-bottom:1.5rem;font-size:.9rem}.toc strong{display:block;margin-bottom:.5rem}.toc ul{list-style:none;margin:0;padding:0}.toc li{margin-bottom:.25rem}.toc a{color:var(--muted);text-decoration:none}.toc a:hover{color:var(--accent)}.toc ul ul{padding-left:1rem}.callout{padding:1rem 1.25rem;border-radius:var(--radius);margin:1rem 0;font-size:.95rem}.callout-info{background:var(--accent-subtle);border-left:3px solid var(--accent)}.callout-warn{background:var(--callout-warn-bg);border-left:3px solid var(--callout-warn-border)}footer{border-top:1px solid var(--border);margin-top:3rem;padding-top:1rem;color:var(--muted);font-size:.8rem}.theme-toggle{display:flex;align-items:center;gap:.5rem;margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border)}.theme-toggle-btn{background:var(--accent-subtle);border:1px solid var(--border);border-radius:9999px;width:44px;height:24px;cursor:pointer;position:relative;transition:background .2s,border-color .2s;flex-shrink:0}.theme-toggle-btn:hover{border-color:var(--accent)}.theme-toggle-btn::after{content:'';position:absolute;top:2px;left:2px;width:18px;height:18px;background:var(--accent);border-radius:50%;transition:transform .2s}[data-theme=dark] .theme-toggle-btn::after{transform:translateX(20px)}.theme-toggle-label{font-size:.8rem;color:var(--muted);user-select:none}@media(max-width:768px){.sidebar{display:none}.content-wrapper{margin-left:0;padding:0 1rem 2rem}}