:root{ color-scheme:dark; }
*{ box-sizing:border-box; }

body{
  margin:0; min-height:100vh; display:flex; flex-direction:column;
  background:#060b16; color:#eaf0ff;
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
  overflow-x:hidden;
}

.vn-bg{ position:fixed; inset:0; z-index:-1;
  background:
    radial-gradient(900px 520px at 16% 18%, rgba(56,189,248,.18), transparent 60%),
    radial-gradient(980px 620px at 86% 28%, rgba(14,165,233,.12), transparent 55%),
    radial-gradient(740px 520px at 50% 92%, rgba(99,102,241,.10), transparent 60%),
    linear-gradient(180deg, #060b16 0%, #050812 100%);
}

.vn-main{ flex:1; display:grid; place-items:center; padding:48px 18px; }

.card{
  width:min(820px, 94vw);
  border-radius:22px; padding:22px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(148,163,184,.18);
  box-shadow: 0 22px 90px rgba(0,0,0,.45);
  position:relative; overflow:hidden;
}

h1{ margin:0 0 6px; font-size:22px; }
.sub{ margin:0 0 16px; color:rgba(234,240,255,.72); font-size:13px; }

.err{
  margin:0 0 14px;
  background: rgba(255,70,70,.12);
  border: 1px solid rgba(255,70,70,.35);
  padding: 10px 12px;
  border-radius: 14px;
}

.okbox{
  margin:0 0 14px;
  background: rgba(56,189,248,.10);
  border: 1px solid rgba(56,189,248,.28);
  padding: 12px 12px;
  border-radius: 14px;
}

.oktext{ opacity:.85; margin-top:6px; }

.grid{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }
@media (max-width:520px){ .grid{ grid-template-columns:1fr; } }

label{ display:block; margin:12px 0 6px; color:rgba(234,240,255,.80); font-size:13px; }

.field{
  width:100%; padding:12px 12px; border-radius:14px;
  border:1px solid rgba(148,163,184,.18);
  background: rgba(0,0,0,.22);
  color:#eaf0ff;
  outline:none;
}

.field:focus{
  border-color: rgba(56,189,248,.70);
  box-shadow: 0 0 0 4px rgba(56,189,248,.16);
}

.hint{ font-size:12px; opacity:.78; margin-top:6px; line-height:1.35; }

.btnrow{ display:flex; gap:10px; margin-top:16px; flex-wrap:wrap; }

.btn{
  flex:1;
  padding:12px 14px;
  border-radius:999px;
  border:1px solid rgba(56,189,248,.35);
  background: linear-gradient(135deg, rgba(14,165,233,.38), rgba(56,189,248,.18));
  color:#eaf0ff;
  font-weight:900;
  cursor:pointer;
  box-shadow: 0 0 24px rgba(56,189,248,.15);
  text-align:center;
}

.btn.secondary{
  border-color: rgba(148,163,184,.22);
  background: rgba(0,0,0,.18);
  box-shadow:none;
  flex:0 0 auto;
  min-width:160px;
  text-decoration:none;
  display:inline-grid;
  place-items:center;
}

.mini{ font-size:12px; opacity:.8; line-height:1.35; }
.mono{ font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; }
.hide{ display:none !important; }

.checkline{ display:flex; gap:10px; align-items:flex-start; margin-top:12px; }
.checkline input{ margin-top:3px; }

.pillrow{ display:flex; gap:10px; margin-top:6px; flex-wrap:wrap; }
.pill{
  flex:1;
  border-radius:999px;
  border:1px solid rgba(148,163,184,.18);
  background: rgba(0,0,0,.18);
  padding:10px 12px;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:10px;
  user-select:none;
}
.pill input{ accent-color: rgba(56,189,248,.9); }
.pill.active{
  border-color: rgba(56,189,248,.55);
  box-shadow: 0 0 0 4px rgba(56,189,248,.12);
  background: rgba(56,189,248,.10);
}

.box{
  margin-top:10px;
  padding:14px;
  border:1px solid rgba(148,163,184,.18);
  border-radius:16px;
  background: rgba(0,0,0,.18);
}

.qrwrap{
  display:flex;
  gap:14px;
  align-items:center;
  flex-wrap:wrap;
}

.qr{
  width:180px; height:180px;
  border-radius:14px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(148,163,184,.18);
  display:grid;
  place-items:center;
  overflow:hidden;
}

.manual{ flex:1; min-width:240px; }
.manual .mono{
  display:block;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(148,163,184,.18);
  background: rgba(0,0,0,.22);
  word-break:break-all;
}

.linkish{ color:#9cc2ff; text-decoration:none; }
.linkish:hover{ text-decoration:underline; }