:root{--bg: #0f1419;--panel: #1a222c;--line: #2c3744;--text: #e8eef5;--muted: #9aa8b8;--accent: #2bb3a0;--accent-dim: rgba(43, 179, 160, .16);--ok: #3dbe8c;--err: #e06a6a;--warn: #e0a84a}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,sans-serif;background:radial-gradient(1200px 600px at 10% -10%,#1a3a36 0%,transparent 50%),radial-gradient(900px 500px at 100% 0%,#243044 0%,transparent 45%),var(--bg);color:var(--text);min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.shell{max-width:920px;margin:0 auto;padding:1.5rem 1.25rem 3rem}.top{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.75rem}.brand h1{margin:0;font-size:1.35rem;font-weight:700;letter-spacing:.02em}.brand p{margin:.25rem 0 0;color:var(--muted);font-size:.9rem}.nav{display:flex;gap:.75rem;align-items:center}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:1.15rem 1.25rem;margin-bottom:1rem}.card h2{margin:0 0 .35rem;font-size:1.05rem}.muted{color:var(--muted);font-size:.88rem}label{display:block;font-size:.8rem;color:var(--muted);margin:.75rem 0 .3rem}input,select{width:100%;background:#12161c;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:.6rem .7rem;font-size:.95rem}button,.btn{border:1px solid var(--line);background:#222a35;color:var(--text);border-radius:8px;padding:.55rem .9rem;cursor:pointer;font-size:.9rem}button.primary,.btn.primary{background:var(--accent-dim);border-color:var(--accent);color:#d8fff8}button:disabled{opacity:.55;cursor:not-allowed}.row{display:grid;grid-template-columns:1fr auto;gap:.75rem;align-items:end}@media(max-width:640px){.row{grid-template-columns:1fr}.top{flex-direction:column;align-items:flex-start}}.tool{display:flex;justify-content:space-between;gap:1rem;align-items:flex-start}.pill{display:inline-flex;border-radius:999px;padding:.15rem .55rem;font-size:.75rem;border:1px solid var(--line);color:var(--muted)}.pill.ok{color:var(--ok);border-color:#3dbe8c66}.pill.warn{color:var(--warn);border-color:#e0a84a73}.pill.err{color:var(--err);border-color:#e06a6a73}.token-box{font-family:ui-monospace,Consolas,monospace;font-size:1.8rem;letter-spacing:.18em;text-align:center;padding:1rem;background:#12161c;border:1px dashed var(--accent);border-radius:12px;margin:.75rem 0}.msg{margin-top:.75rem;font-size:.88rem}.msg.err{color:var(--err)}.msg.ok{color:var(--ok)}table{width:100%;border-collapse:collapse;font-size:.85rem}th,td{border-bottom:1px solid var(--line);padding:.5rem .35rem;text-align:left}th{color:var(--muted);font-weight:600}.mono{font-family:ui-monospace,Consolas,monospace;letter-spacing:.08em}