.usdt-modal {
  background: #0b1220;
  border-radius: 16px;
  padding: 22px 24px 24px;
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 60px rgba(2, 8, 23, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.usdt-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}

.usdt-title {
  font-size: 22px;
  font-weight: 700;
  color: #f8fafc;
  margin: 0;
}

.usdt-subtitle {
  margin: 4px 0 0;
  font-size: 14px;
  color: #94a3b8;
}

.usdt-back-btn {
  display: inline-flex;
  align-items: center;
  margin: 0 0 18px;
  padding: 0;
  border: none;
  background: none;
  color: #94a3b8;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s ease;
}

.usdt-back-btn:hover {
  color: #e2e8f0;
}

.usdt-deposit-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.usdt-instruction {
  margin: 0;
  font-size: 14px;
  color: #cbd5e1;
  line-height: 1.45;
}

.usdt-address-box {
  padding: 14px 16px;
  border-radius: 12px;
  background: #060d18;
  border: 1px solid rgba(71, 85, 105, 0.65);
  color: #e2e8f0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
  word-break: break-all;
  user-select: all;
}

.usdt-copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: transparent;
  color: #e2e8f0;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.usdt-copy-btn:hover {
  background: rgba(30, 41, 59, 0.5);
  border-color: rgba(148, 163, 184, 0.7);
}

.usdt-copy-btn.is-copied {
  border-color: rgba(34, 197, 94, 0.6);
  color: #86efac;
}

.usdt-copy-icon {
  flex-shrink: 0;
  opacity: 0.85;
}

.usdt-callout {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.5;
}

.usdt-callout p {
  margin: 0;
}

.usdt-callout strong {
  font-weight: 700;
}

.usdt-callout--auto {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: rgba(6, 78, 59, 0.35);
  border: 1px solid rgba(34, 197, 94, 0.55);
  color: #6ee7b7;
}

.usdt-callout--auto strong {
  color: #86efac;
}

.usdt-callout-icon {
  flex-shrink: 0;
  font-size: 16px;
  line-height: 1.4;
}

.usdt-callout--warn {
  background: rgba(120, 53, 15, 0.35);
  border: 1px solid rgba(245, 158, 11, 0.55);
  color: #fcd34d;
}

.usdt-callout--warn strong {
  color: #fde68a;
}

#usdtDepositModal.modal-overlay {
  z-index: 100000 !important;
  pointer-events: auto !important;
}

@media (max-width: 768px) {
  .usdt-modal {
    width: calc(100% - 24px);
    padding: 18px 16px 20px;
  }

  .usdt-title {
    font-size: 20px;
  }

  .usdt-address-box {
    font-size: 12px;
  }
}