:root{--bg:#fff;--fg:#171717;--muted:#6b7280;--accent:#2563eb;--accent-hover:#1d4ed8;--border:#e5e7eb;--radius:8px}@media (prefers-color-scheme:dark){:root{--bg:#0a0a0a;--fg:#ededed;--muted:#9ca3af;--accent:#3b82f6;--accent-hover:#60a5fa;--border:#374151}}*{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:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.markdown-content h1{margin-bottom:1.5rem;font-size:2rem;font-weight:700;line-height:1.2}.markdown-content h2{margin-top:2rem;margin-bottom:1rem;font-size:1.5rem;font-weight:600;line-height:1.3}.markdown-content h3{margin-top:1.5rem;margin-bottom:.75rem;font-size:1.25rem;font-weight:600;line-height:1.4}.markdown-content p{color:var(--fg);margin-bottom:1rem}.markdown-content ul,.markdown-content ol{margin-bottom:1rem;padding-left:1.5rem}.markdown-content li{margin-bottom:.5rem}.markdown-content blockquote{border-left:3px solid var(--border);color:var(--muted);margin:1rem 0;padding-left:1rem}.markdown-content a{color:var(--accent)}.markdown-content a:hover{color:var(--accent-hover)}.markdown-content code{background:var(--border);border-radius:4px;padding:.15rem .4rem;font-size:.875em}.markdown-content pre{background:var(--border);border-radius:var(--radius);margin-bottom:1rem;padding:1rem;overflow-x:auto}.markdown-content pre code{background:0 0;padding:0}.markdown-content hr{border:none;border-top:1px solid var(--border);margin:2rem 0}