:root{color-scheme:light dark;--bg:#111418;--card:#1a1f25;--text:#f3f4f6;--muted:#b8c0cc;--accent:#e3a74f;--border:#303844}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.65}main{width:min(900px,calc(100% - 32px));margin:48px auto}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px;margin:20px 0}h1,h2,h3{line-height:1.25}h1{font-size:clamp(2rem,5vw,3rem);margin-bottom:.35rem}h2{margin-top:2rem}.muted{color:var(--muted)}a{color:var(--accent)}nav{display:flex;gap:16px;flex-wrap:wrap;margin:18px 0 28px}nav a{text-decoration:none;border:1px solid var(--border);border-radius:999px;padding:8px 14px}footer{margin-top:40px;padding-top:20px;border-top:1px solid var(--border);color:var(--muted);font-size:.95rem}@media(prefers-color-scheme:light){:root{--bg:#f5f7fa;--card:#fff;--text:#1a1f25;--muted:#5f6976;--accent:#8a5500;--border:#d9dee6}}