.blc-page { padding: 24px 0 48px; }
.blc-shell { max-width: 900px; margin: 0 auto; padding: 0 16px; }
.blc-shell-narrow { max-width: 760px; }
.blc-back { margin: 0 0 12px; }
.blc-back a { color: #666; text-decoration: none; font-size: 14px; line-height: 1.4; font-weight: 400; }
.blc-back a:hover { color: #111; text-decoration: none; }
.blc-page-head h1 { margin: 0 0 8px; font-size: 28px; }
.blc-lead { color: #555; line-height: 1.55; }
.blc-crypto-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 20px 0; }
.blc-crypto-card { text-align: left; background: #fff; border: 1px solid #e8e8ee; border-radius: 12px; padding: 16px; cursor: pointer; }
.blc-crypto-card strong { display: block; margin-bottom: 4px; }
.blc-crypto-card span { color: #666; font-size: 13px; }
.blc-help-cloud { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; padding: 14px 16px; font-size: 14px; line-height: 1.5; }
.blc-pay-page .blc-help-cloud { margin-top: 24px; }
.blc-panel { background: #fff; border: 1px solid #ececf1; border-radius: 14px; padding: 20px; }
.blc-pay-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; margin-top: 16px; }
.blc-summary { display: grid; grid-template-columns: 150px 1fr; gap: 8px 12px; margin: 16px 0; }
.blc-summary dt { color: #666; margin: 0; }
.blc-summary dd { margin: 0; word-break: break-all; }
.blc-wallet { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.blc-wallet-address { font-family: monospace; font-size: 13px; flex: 1 1 auto; min-width: 0; word-break: break-all; }
.blc-copy-wrap { display: inline-flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.blc-copy { border: 0; background: #eee; border-radius: 6px; padding: 4px 8px; cursor: pointer; font-size: 13px; line-height: 1.4; }
.blc-copy:hover { background: #e2e2e2; }
.blc-copy-status { font-size: 13px; line-height: 1.4; color: #0f766e; font-weight: 600; opacity: 0; transition: opacity 0.2s ease; white-space: nowrap; }
.blc-copy-status-visible { opacity: 1; }
.blc-copy-status-error { color: #b91c1c; }
.blc-btn { border: 0; border-radius: 10px; padding: 12px 16px; font-weight: 600; cursor: pointer; }
.blc-btn-primary { background: #111; color: #fff; width: 100%; }
.blc-timer { background: #111; color: #fff; border-radius: 10px; padding: 12px 14px; display: flex; justify-content: space-between; align-items: center; }
.blc-status-steps { display: grid; gap: 10px; margin-top: 16px; }
.blc-step { display: grid; grid-template-columns: 36px 1fr; gap: 10px; padding: 12px; border: 1px solid #eee; border-radius: 10px; background: #fafafa; }
.blc-step span { width: 28px; height: 28px; border-radius: 50%; background: #ddd; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; }
.blc-step.active { border-color: #111; background: #fff; }
.blc-step.active span, .blc-step.done span { background: #111; color: #fff; }
.blc-step p, .blc-muted { color: #666; font-size: 13px; margin: 4px 0 0; }
.blc-panel-qr { text-align: center; }
.blc-user-confirmed { background: #fff7ed; border: 1px solid #fed7aa; color: #9a3412; border-radius: 10px; padding: 12px; font-weight: 600; }
.blc-error-inline { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; border-radius: 10px; padding: 12px; margin-top: 12px; }

@media (max-width: 760px) {
  .blc-crypto-grid, .blc-pay-grid { grid-template-columns: 1fr; }
  .blc-summary { grid-template-columns: 1fr; }
}