:root { --bg:#0b0e13; --card:#121722; --text:#e6ecf2; --muted:#9fb0c3; --accent:#4ea1ff; }
*{box-sizing:border-box} body{margin:0;font-family:system-ui,-apple-system,Inter,Segoe UI,Roboto,Arial;background:var(--bg);color:var(--text)}
.wrap{max-width:900px;margin:0 auto;padding:20px}
header{display:flex;justify-content:space-between;align-items:center}
.brand{font-weight:800;font-size:20px}
.card{background:var(--card);border-radius:16px;padding:20px;box-shadow:0 10px 28px rgba(0,0,0,.35)}
h1{margin:0 0 10px;font-size:28px} ul{color:var(--muted);line-height:1.6}
.button{display:inline-block;background: var(--accent); color:#041024; border-radius:10px; padding:12px 16px; font-weight:800; text-decoration:none; margin:8px 0}
.button[disabled]{opacity:.6;cursor:not-allowed}
.hint{color:var(--muted);font-size:12px;margin-top:6px}
.status{margin-top:8px;color:var(--muted)}
footer{color:var(--muted);text-align:center;margin:24px 0 40px}