:root{--bg:#f3f4f6;--panel:#fff;--text:#111827;--muted:#6b7280;--border:#e5e7eb;--accent:#2563eb;--accent-text:#fff;--accent-soft:#2563eb1f}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0f1115;--panel:#181b21;--text:#e5e7eb;--muted:#9ca3af;--border:#2a2f38;--accent:#3b82f6;--accent-soft:#3b82f62e}}:root[data-theme=dark]{--bg:#0f1115;--panel:#181b21;--text:#e5e7eb;--muted:#9ca3af;--border:#2a2f38;--accent:#3b82f6;--accent-soft:#3b82f62e}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}a{color:var(--accent)}.top{justify-content:space-between;align-items:center;gap:16px;margin-top:32px;display:flex}.brand{color:inherit;align-items:center;gap:8px;font-size:16px;font-weight:700;text-decoration:none;display:inline-flex}.top-nav{gap:20px;display:flex}.top-nav a{color:var(--muted);font-size:14px;font-weight:500;text-decoration:none}.top-nav a:hover,.top-nav a.current{color:var(--text)}.btn{border:1px solid var(--accent);border-radius:8px;padding:7px 12px;font-size:14px;font-weight:600;line-height:1.4;text-decoration:none;display:inline-block}.btn.primary{background:var(--accent);color:var(--accent-text)}.btn.primary:hover{filter:brightness(1.08)}.wrap{max-width:620px;margin:0 auto;padding:0 16px 64px}h1{margin:48px 0 14px;font-size:1.75rem;line-height:1.25}h2{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:44px 0 10px;font-size:.8rem}ul,ol{margin:0;padding-left:1.2em}li{margin-bottom:8px}.cta{margin:24px 0 0}mark{color:inherit;text-decoration:underline 2px var(--accent);text-underline-offset:4px;background:0 0}.foot{color:var(--muted);border-top:1px solid var(--border);padding:16px 16px 48px;font-size:.9rem}.foot nav{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;max-width:620px;margin:0 auto;display:grid}.foot h2{margin:16px 0 10px}.foot ul{padding:0;list-style:none}.foot a{color:inherit;text-decoration:none}.foot a:hover{color:var(--text);text-decoration:underline}.answer{font-size:1.1rem}section p{margin:0 0 12px}.qa{border-top:1px solid var(--border);padding:12px 0 2px}.qa h3{margin:0 0 4px;font-size:1rem}.qa p{color:var(--muted);margin:0 0 10px}.related ul{padding:0;list-style:none}.crumb{margin:40px 0 0;font-size:14px}.crumb a{color:var(--muted);text-decoration:none}.crumb a:hover{color:var(--text)}.crumb+h1{margin-top:6px}.guide-list{padding:0;list-style:none}.guide-list li{margin-bottom:18px}.guide-list a{font-weight:600}.guide-list p{color:var(--muted);margin:2px 0 0}