.buyer-details-form-card {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.buyer-details-form-card .form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.buyer-details-form-card .form-group {
  margin-bottom: 20px;
}

.buyer-details-form-card .form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: #333;
  margin-bottom: 8px;
}

.buyer-details-form-card .required {
  color: #dc3545;
}

.buyer-details-form-card .form-control {
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  border: 1.5px solid #e0e0e0;
  border-radius: 10px;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.buyer-details-form-card .form-control:focus {
  outline: none;
  border-color: #ffc107;
  box-shadow: 0 0 0 3px rgba(255, 193, 7, 0.1);
}

.buyer-details-form-card .form-control.is-invalid {
  border-color: #dc3545;
}

.buyer-details-form-card .invalid-feedback {
  display: none;
  font-size: 0.8rem;
  color: #dc3545;
  margin-top: 6px;
}

.buyer-details-form-card .form-control.is-invalid + .invalid-feedback {
  display: block;
}

.buyer-details-form-card .form-check-input.is-invalid ~ .invalid-feedback {
  display: block;
}

.buyer-details-form-card .form-hint {
  font-size: 0.8rem;
  color: #888;
  margin-top: 6px;
}

.buyer-details-form-card .form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.buyer-details-form-card .form-check-input {
  width: 20px;
  height: 20px;
  margin: 0;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: #ffc107;
}

.buyer-details-form-card .form-check-label {
  font-size: 0.85rem;
  color: #666;
  line-height: 1.4;
  cursor: pointer;
}

.buyer-details-form-card .form-check-label a {
  color: #ffc107;
  text-decoration: none;
}

.buyer-details-form-card .form-check-label a:hover {
  text-decoration: underline;
}

.buyer-details-form-card .form-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid #e8e8e8;
  margin: 24px 0;
}

.buyer-details-form-card .total-label {
  font-size: 1rem;
  color: #666;
}

.buyer-details-form-card .total-amount {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.buyer-details-form-card .total-price {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1a1a1a;
}

.buyer-details-form-card .total-currency {
  font-size: 1rem;
  color: #666;
}

.buyer-details-form-card .btn-submit {
  width: 100%;
  padding: 16px 32px;
  font-size: 1.1rem;
  font-weight: 600;
  background: #ffc107;
  color: #212529;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.buyer-details-form-card .btn-submit:hover:not(:disabled) {
  background: #e0a800;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 193, 7, 0.3);
}

.buyer-details-form-card .btn-submit:disabled {
  background: #ccc;
  color: #fff;
  cursor: not-allowed;
}

.buyer-details-form-card .btn-submit .btn-loading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.buyer-details-form-card .form-error-message {
  margin-top: 16px;
  padding: 12px 16px;
  background: #fff5f5;
  border: 1px solid #fed7d7;
  border-radius: 10px;
  color: #dc3545;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .buyer-details-form-card {
    padding: 24px;
    border-radius: 16px;
  }

  .buyer-details-form-card .form-row {
    grid-template-columns: 1fr;
  }
}