:root{--bg:#0b1120;--panel:#0f172a;--brand:#0ea5e9;--text:#e5edf5;--muted:#9fb0c6;
font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
body{background:var(--bg);color:var(--text);margin:0;display:grid;place-items:center;min-height:100vh}
.auth{background:var(--panel);width:min(520px,92vw);padding:28px;border-radius:14px;border:1px solid #1f2a3d}
h1{margin:0 0 12px;font-size:22px}
label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}
input{width:100%;padding:10px 12px;border-radius:10px;border:1px solid #22324a;background:#0b1324;color:var(--text)}
button,.btn{margin-top:16px;width:100%;padding:10px 14px;border-radius:10px;border:1px solid #1476b8;
background:var(--brand);color:#041320;font-weight:700;cursor:pointer;text-align:center;text-decoration:none;display:inline-block}
.btn.ghost{background:transparent;color:var(--brand);border-color:#224a66}
.err{background:#26131a;border:1px solid #5a1321;color:#ffb3c0;padding:10px 12px;border-radius:10px;margin-bottom:8px;font-size:13px}
.muted{color:var(--muted);font-size:13px;text-align:center;margin-top:8px}
.row{display:flex;gap:10px;margin-top:12px}