:root {
  --bg: #0f1216;
  --card: #171c22;
  --fg: #e8edf2;
  --muted: #8a97a6;
  --accent: #f5a623;
  --accent2: #00b894;
  --line: #262e38;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(1200px 600px at 50% -10%, #1c2430, var(--bg));
  color: var(--fg);
  font: 15px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  padding: 24px;
}
.card {
  width: 100%;
  max-width: 460px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
h1 { margin: 0 0 4px; font-size: 22px; }
h2 { margin: 0 0 10px; font-size: 15px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.sub { margin: 0 0 20px; color: var(--muted); font-size: 13px; }
.label { display: block; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.balance { display: flex; gap: 24px; align-items: baseline; margin-bottom: 20px; }
.amount { font-size: 30px; font-weight: 700; color: var(--accent); }
.amount.small { font-size: 16px; color: var(--muted); }
.addr { margin-bottom: 20px; }
.addr-row { display: flex; gap: 8px; align-items: center; margin: 6px 0 12px; }
code { background: #0c0f13; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 12px; word-break: break-all; flex: 1; }
#qr { width: 132px; height: 132px; background: #fff; border-radius: 8px; padding: 6px; display: none; }
#qr[src] { display: block; }
.actions { margin-bottom: 20px; }
.send { border-top: 1px solid var(--line); padding-top: 18px; }
.send input { width: 100%; margin-bottom: 10px; background: #0c0f13; border: 1px solid var(--line); border-radius: 8px; color: var(--fg); padding: 11px 12px; font-size: 14px; }
button { cursor: pointer; border: none; border-radius: 8px; padding: 11px 14px; font-size: 14px; font-weight: 600; }
button.primary { width: 100%; background: var(--accent); color: #1a1205; }
button.primary:hover { filter: brightness(1.06); }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); padding: 8px 10px; }
button:disabled { opacity: 0.5; cursor: default; }
.hint { color: var(--muted); font-size: 12px; margin: 10px 0 0; }
.hint a, footer a { color: var(--accent2); }
.status { min-height: 20px; margin: 16px 0 0; font-size: 13px; }
.status.ok { color: var(--accent2); }
.status.err { color: #ff7675; }
footer { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }