:root {
  --bg: #070d18;
  --panel: #0e1830;
  --panel2: #12203d;
  --line: rgba(148, 190, 255, 0.14);
  --txt: #e8eefc;
  --mut: #8ba0c4;
  --acc: #22d3ee;
  --green: #34d399;
  --red: #f87171;
  --amber: #fbbf24;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: radial-gradient(1200px 700px at 80% -10%, #0e2444 0%, var(--bg) 55%);
  color: var(--txt);
  min-height: 100vh;
}
.wrap { max-width: 520px; margin: 0 auto; padding: 22px 16px 60px; }
header.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
header.brand img { width: 34px; height: 34px; border-radius: 8px; }
header.brand .t { font-weight: 700; letter-spacing: .4px; }
header.brand .s { color: var(--mut); font-size: 12px; }
.card {
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 14px;
}
h2 { font-size: 17px; margin-bottom: 4px; }
.sub { color: var(--mut); font-size: 13px; margin-bottom: 16px; }
label { display: block; font-size: 12px; color: var(--mut); margin: 12px 0 6px; text-transform: uppercase; letter-spacing: .6px; }
input, select, textarea {
  width: 100%; padding: 11px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: rgba(3, 8, 20, .65);
  color: var(--txt); font-size: 15px; outline: none;
}
input:focus, select:focus { border-color: var(--acc); }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; }
.fee { display: flex; justify-content: space-between; font-size: 13px; color: var(--mut); padding: 10px 0 2px; }
button.btn {
  width: 100%; margin-top: 16px; padding: 13px; border: 0; border-radius: 11px;
  font-size: 15px; font-weight: 700; cursor: pointer;
  background: linear-gradient(135deg, #0ea5e9, #22d3ee); color: #04121c;
}
button.btn:disabled { opacity: .5; cursor: not-allowed; }
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--txt); font-weight: 600; }
button.green { background: linear-gradient(135deg, #059669, #34d399); color: #04120c; }
.pill { display: inline-block; padding: 3px 10px; border-radius: 99px; font-size: 12px; font-weight: 700; }
.pill.pending { background: rgba(251, 191, 36, .15); color: var(--amber); }
.pill.paid { background: rgba(52, 211, 153, .15); color: var(--green); }
.pill.error { background: rgba(248, 113, 113, .15); color: var(--red); }
.amount-big { font-size: 34px; font-weight: 800; letter-spacing: -.5px; }
.amount-sub { color: var(--mut); font-size: 13px; margin-top: 2px; }
.qr { display: flex; justify-content: center; padding: 16px 0 4px; }
.qr canvas, .qr img { border-radius: 10px; background: #fff; padding: 10px; width: 210px !important; height: 210px !important; }
.center { text-align: center; }
.mut { color: var(--mut); }
.small { font-size: 12px; }
.divider { height: 1px; background: var(--line); margin: 14px 0; }
.status-line { display: flex; align-items: center; gap: 8px; color: var(--mut); font-size: 14px; min-height: 22px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); animation: pulse 1.2s infinite; }
.dot.green { background: var(--green); animation: none; }
@keyframes pulse { 50% { opacity: .25; } }
a { color: var(--acc); }
.copy { font-size: 12px; color: var(--mut); word-break: break-all; background: rgba(3, 8, 20, .5); padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); }
.hidden { display: none !important; }
.msg { margin-top: 12px; font-size: 14px; }
.msg.ok { color: var(--green); }
.msg.err { color: var(--red); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }