:root{--bg:#f8fafc;--fg:#0f172a;--muted:#64748b;--card:#fff;--line:#e2e8f0;--accent:#4f46e5;--ai:#dc2626;--human:#16a34a;--mixed:#d97706}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);margin:0;font:16px/1.65 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:var(--accent)}.wrap{max-width:860px;margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--line);background:var(--card)}.site-header .wrap{padding-top:14px;padding-bottom:14px}.brand{color:var(--fg);font:700 18px ui-monospace,Menlo,monospace;text-decoration:none}.site-footer{border-top:1px solid var(--line);color:var(--muted);margin-top:64px;padding:24px 0;font-size:14px}h1{letter-spacing:-.02em;margin:32px 0 8px;font-size:clamp(30px,6vw,44px);line-height:1.15}.lead{color:var(--muted);margin:0 0 20px}h2{letter-spacing:-.01em;margin-top:44px;font-size:26px}h3{margin-bottom:4px;font-size:18px}.tool{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:0 1px 3px #0000000a}.tool label{margin-bottom:6px;font-weight:600;display:block}textarea{resize:vertical;border:1px solid var(--line);background:#f8fafc;border-radius:10px;width:100%;min-height:260px;padding:12px;font:14px/1.5 ui-monospace,Menlo,Consolas,monospace}textarea:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}.row{flex-wrap:wrap;align-items:center;gap:12px;margin-top:12px;display:flex}.row .count{color:var(--muted);margin-right:auto;font-size:13px}select{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px;font-size:15px}button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:10px;padding:11px 26px;font-size:16px;font-weight:600}button:disabled{opacity:.6;cursor:wait}.error{color:#991b1b;background:#fef2f2;border-radius:10px;margin-top:14px;padding:12px}.result{border:1px solid var(--line);border-radius:12px;margin-top:16px;padding:16px}.verdict{margin:0 0 8px;font-size:22px;font-weight:700}.bar{background:#e2e8f0;border-radius:99px;height:12px;overflow:hidden}.bar>div{border-radius:99px;height:100%;transition:width .5s}.result ul{margin:12px 0 0;padding-left:20px}.note{color:var(--muted);margin:10px 0 0;font-size:13px}article p,article li{color:#1e293b}.faq details{background:var(--card);border:1px solid var(--line);border-radius:10px;margin:10px 0;padding:12px 16px}.faq summary{cursor:pointer;font-weight:600}