:root{--bg:#0b1220;--card:#121a2b;--text:#e6edf3;--muted:#9fb0c0;--accent:#0ea5e9;--ok:#22c55e;--err:#ef4444}
*{box-sizing:border-box} body{margin:0;font:16px/1.5 system-ui,Segoe UI,Roboto,Helvetica,Arial;color:var(--text);background:var(--bg)}
.container{max-width:980px;margin:0 auto;padding:24px}
.card{background:var(--card);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:18px}
h1,h2{margin:0 0 10px} a{color:var(--accent);text-decoration:none}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.12)}
.btn-primary{background:var(--accent);color:#00131b;border:none}
.input{width:100%;padding:10px;border-radius:10px;border:1px solid rgba(255,255,255,.15);background:#0d1629;color:inherit}
.row{display:grid;grid-template-columns:1fr;gap:12px}
.notice{padding:10px;border-radius:10px;background:#0f1b30;border:1px solid rgba(255,255,255,.08);color:var(--muted)}
.err{color:var(--err)} .ok{color:var(--ok)} .nav{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:16px}
.brand{font-weight:700} .user-cta a{margin-left:6px} footer{margin-top:24px;color:var(--muted);font-size:14px}