:root{--bg:#0b0b0d;--fg:#f4f4f5;--muted:#a1a1aa;--card:#111114;--border:#27272a;--accent:#7c3aed;--danger:#ef4444;--radius:14px}*{box-sizing:border-box}body,html{padding:0;margin:0;background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji}a{color:inherit;text-decoration:none}.container{max-width:980px;margin:0 auto;padding:20px}.header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0 24px}.brand{font-weight:800;letter-spacing:.3px;font-size:20px}.nav{display:flex;gap:12px;align-items:center}.main{min-height:70vh}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.h1{font-size:34px;line-height:1.1;margin:0 0 8px}.p{color:var(--muted);margin:0 0 16px}.grid{display:grid;grid-template-columns:1fr;grid-gap:12px;gap:12px}@media (min-width:860px){.grid-2{grid-template-columns:1fr 1fr}}.input,.select,.textarea{width:100%;padding:12px;border-radius:12px;border:1px solid var(--border);background:#0f0f12;color:var(--fg)}.textarea{min-height:120px;resize:vertical}.row{display:flex;gap:10px;flex-wrap:wrap}.btn,.row{align-items:center}.btn{display:inline-flex;justify-content:center;padding:10px 14px;border-radius:12px;border:1px solid var(--border);background:#17171c;color:var(--fg);cursor:pointer;font-weight:600}.btn.primary{background:var(--accent);border-color:transparent}.btn.danger{background:var(--danger);border-color:transparent}.btn:disabled{opacity:.6;cursor:not-allowed}.kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:12px;padding:2px 8px;border:1px solid var(--border);border-radius:999px}.footer,.kbd{color:var(--muted)}.footer{padding:32px 0 10px;font-size:13px}