:root{--bg: #0b0d12;--bg-elev: #11151c;--bg-code: #161b22;--border: #1f2630;--border-soft: #1a2029;--text: #e6e9ef;--text-muted: #8b95a7;--text-dim: #5d6678;--accent: #6ea8fe;--accent-soft: rgba(110, 168, 254, .12);--green: #5bd99a;--amber: #f6c177;--red: #ef6b6b;--sidebar-w: 280px;--content-max: 920px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.layout{display:grid;grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh}.content{overflow-y:auto;height:100vh;padding:4rem 5rem 6rem;display:flex;justify-content:center}.markdown{max-width:var(--content-max);width:100%}@media (max-width: 900px){.layout{grid-template-columns:1fr}.sidebar{position:sticky;top:0}.content{padding:2rem 1.25rem 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0}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:12px;padding:1.25rem;transition:border-color .12s ease,transform .12s ease;display:block;color:inherit;text-decoration:none!important}.card:hover{border-color:var(--accent);transform:translateY(-1px)}.card h3{margin:0 0 .35rem;font-size:1.05rem}.card p{margin:0;color:var(--text-muted);font-size:13.5px}.page-footer{margin-top:5rem;padding-top:2.5rem;border-top:1px solid var(--border);color:var(--text-muted);font-size:13.5px}.page-footer-inner{display:flex;flex-direction:column;gap:1.5rem}.page-footer-row{display:flex;align-items:flex-start;justify-content:space-between;gap:2rem;flex-wrap:wrap}.page-footer-title{color:var(--text);font-weight:600;font-size:14.5px;letter-spacing:-.01em}.page-footer-sub{color:var(--text-dim);font-size:12.5px;margin-top:2px}.page-footer-nav{display:flex;gap:1.25rem;flex-wrap:wrap}.page-footer-nav a{color:var(--text-muted);text-decoration:none;font-weight:500}.page-footer-nav 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