:root{--bg:#06110d;--card:#0b1b16;--text:#f6fff9;--muted:#9fb8ad;--line:rgba(255,255,255,.13);--a:#20f28b;--b:#00d4ff;--red:#ef4444}
*{box-sizing:border-box}body{margin:0;font-family:Arial,system-ui,sans-serif;background:radial-gradient(circle at top left,rgba(32,242,139,.18),transparent 32%),#06110d;color:var(--text)}
.wrap{max-width:760px;margin:auto;padding:16px}.card{background:rgba(11,27,22,.94);border:1px solid var(--line);border-radius:24px;padding:18px;margin:14px 0;box-shadow:0 18px 55px rgba(0,0,0,.35)}
h1{font-size:22px;margin:0 0 6px}h2{font-size:19px}.sub{color:var(--muted);font-size:13px;line-height:1.45}.btn{width:100%;border:0;border-radius:16px;padding:16px;font-size:16px;font-weight:800;background:linear-gradient(135deg,var(--a),var(--b));color:#02130b;margin-top:12px}
.btn.dark{background:#12251f;color:#fff;border:1px solid rgba(255,255,255,.16)}.btn.red{background:#7f1d1d;color:#fff}.qr{min-height:310px;display:grid;place-items:center;background:#06110d;border:1px dashed rgba(255,255,255,.18);border-radius:20px;padding:14px;text-align:center}
.qr img{max-width:300px;width:100%;background:white;border-radius:16px;padding:12px}.notice{background:#06110d;border:1px solid var(--line);border-radius:16px;padding:13px;color:var(--muted);font-size:14px;line-height:1.5}
.ok{color:#22c55e}.bad{color:#ef4444}pre{white-space:pre-wrap;word-break:break-word;background:#030806;border:1px solid var(--line);border-radius:16px;padding:12px;color:#cbd5e1;font-size:12px}
input{width:100%;padding:13px;border-radius:14px;border:1px solid var(--line);background:#06110d;color:var(--text);margin-top:6px}label{font-size:12px;color:var(--muted)}