:root{--bg:#0f172a;--panel:#1e293b;--accent:#38bdf8;--text:#e2e8f0;--muted:#94a3b8}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.container{max-width:880px;margin:0 auto;padding:2rem 1.5rem}.card{background:var(--panel);border:1px solid #334155;border-radius:12px;padding:1.5rem;margin-bottom:1rem}button,input{font:inherit;border-radius:8px;padding:.6rem .8rem;border:1px solid #334155}input{width:100%;background:#0b1220;color:var(--text);margin-top:.35rem}button{background:var(--accent);color:#082f49;font-weight:600;border:none;cursor:pointer}label{display:block;margin-bottom:.75rem;color:var(--muted);font-size:.9rem}h1{margin-top:0}.badge{display:inline-block;padding:.15rem .6rem;border-radius:999px;background:#082f49;color:var(--accent);font-size:.8rem}