* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  min-height: 100vh;
  color: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.card {
  width: 100%;
  max-width: 440px;
  background: #111827;
  border: 1px solid #334155;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

h1 {
  margin: 0 0 8px;
  font-size: 22px;
}

.sub {
  color: #94a3b8;
  font-size: 14px;
  margin-bottom: 24px;
  line-height: 1.5;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  margin-right: 6px;
}

.badge-trc { background: #7c2d12; color: #fdba74; }
.badge-erc { background: #1e3a8a; color: #93c5fd; }

.row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed #334155;
  font-size: 14px;
}

.row:last-of-type { border-bottom: none; }

.label { color: #94a3b8; }

.value {
  color: #f8fafc;
  word-break: break-all;
  text-align: right;
  max-width: 65%;
}

.amount {
  font-size: 28px;
  font-weight: 700;
  color: #38bdf8;
  margin: 16px 0 24px;
}

.btn {
  width: 100%;
  border: none;
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 10px;
}

.btn-primary { background: #2563eb; color: #fff; }
.btn-primary:disabled { background: #475569; cursor: not-allowed; }
.btn-secondary { background: #1e293b; color: #e2e8f0; border: 1px solid #475569; }
.btn-wallet { background: #0f172a; color: #e2e8f0; border: 1px solid #475569; text-align: left; display: flex; justify-content: space-between; align-items: center; }
.btn-wallet span { font-size: 12px; color: #94a3b8; font-weight: 400; }

.wallet-panel { margin: 16px 0 8px; padding: 14px; background: #0f172a; border: 1px solid #334155; border-radius: 12px; }
.wallet-panel h3 { margin: 0 0 6px; font-size: 15px; color: #f8fafc; }
.wallet-panel p { margin: 0 0 12px; font-size: 12px; color: #94a3b8; line-height: 1.5; }
.wallet-panel .btn { margin-top: 8px; }

.divider { text-align: center; color: #64748b; font-size: 12px; margin: 14px 0 4px; }

.status {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.5;
  background: #0f172a;
  border: 1px solid #334155;
  min-height: 48px;
}

.ok { color: #4ade80; }
.err { color: #f87171; }
.warn { color: #fbbf24; }
.hidden { display: none; }