:root { --bg:#0f0f0f; --surface:#1a1a1a; --surface2:#242424; --border:#2e2e2e; --green:#00e676; --yellow:#ffd600; --blue:#40c4ff; --red:#ff5252; --text:#f0f0f0; --muted:#8a8a8a; }
* { box-sizing:border-box; margin:0; padding:0; }
body { background:var(--bg); color:var(--text); font:15px/1.45 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; min-height:100vh; display:flex; justify-content:center; align-items:flex-start; padding:28px 14px; }
.card { width:min(440px,100%); background:var(--surface); border:1px solid var(--border); border-radius:14px; padding:22px; display:flex; flex-direction:column; gap:10px; }
.card.wide { width:min(760px,100%); }
.logo { font-weight:800; font-size:22px; letter-spacing:1px; color:var(--green); }
.sub { color:var(--muted); font-size:13px; margin-top:-6px; }
form { display:flex; flex-direction:column; gap:8px; }
label { font-size:12px; color:var(--muted); text-transform:uppercase; letter-spacing:1px; margin-top:4px; }
label.chk { text-transform:none; letter-spacing:0; font-size:14px; color:var(--text); display:flex; gap:8px; align-items:center; margin:6px 0; }
input { background:var(--bg); border:1px solid var(--border); color:var(--text); border-radius:9px; padding:12px; font:inherit; font-size:17px; width:100%; }
input[type=checkbox] { width:20px; height:20px; accent-color:var(--green); }
#c, .code { font-size:26px; letter-spacing:6px; text-align:center; font-family:ui-monospace, monospace; }
button { background:var(--green); color:#000; border:none; border-radius:10px; padding:14px; font:inherit; font-size:17px; font-weight:800; letter-spacing:1px; cursor:pointer; }
button.sec { background:var(--surface2); color:var(--text); border:1px solid var(--border); font-weight:600; font-size:14px; padding:9px 12px; letter-spacing:0; }
button.red { background:var(--surface2); color:var(--red); border:1px solid var(--red); font-weight:600; font-size:13px; padding:7px 10px; letter-spacing:0; }
button:disabled { opacity:.5; }
.hint { font-size:12px; color:var(--muted); }
.err { color:var(--red); font-size:14px; min-height:1em; }
.ok { color:var(--green); font-size:14px; }
.qr { background:#fff; padding:12px; border-radius:10px; align-self:center; }
.qr img { display:block; width:220px; height:220px; image-rendering:pixelated; }
.secret { font-family:ui-monospace, monospace; font-size:16px; background:var(--bg); border:1px dashed var(--border); padding:10px; border-radius:8px; text-align:center; word-break:break-all; user-select:all; }
.codes { display:grid; grid-template-columns:1fr 1fr; gap:6px; font-family:ui-monospace, monospace; font-size:18px; background:#fff; color:#000; padding:14px; border-radius:10px; }
.row { display:flex; gap:8px; align-items:center; flex-wrap:wrap; padding:8px; background:var(--bg); border-radius:8px; font-size:13px; }
.row .grow { flex:1; min-width:0; }
h3 { font-size:13px; color:var(--blue); text-transform:uppercase; letter-spacing:1px; margin-top:10px; }
a { color:var(--blue); }
@media print { body { background:#fff; color:#000; } .card { border:none; } button, .noprint { display:none; } }