.stock-chip {
  color: var(--success);
  border-color: color-mix(in srgb, var(--success) 45%, var(--border));
  background: color-mix(in srgb, var(--success) 12%, var(--surface-2));
}

.stock-chip--empty {
  color: var(--danger);
  border-color: color-mix(in srgb, var(--danger) 45%, var(--border));
  background: color-mix(in srgb, var(--danger) 12%, var(--surface-2));
}

.buy-product-btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

.purchase-modal-content {
  width: min(640px, 94vw);
}

.purchase-product-summary {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-2);
  padding: 12px;
  margin-bottom: 14px;
  display: grid;
  gap: 4px;
}

.purchase-product-summary strong {
  color: var(--text);
}

.purchase-product-summary span {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.purchase-form {
  display: grid;
  gap: 12px;
}

.purchase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.purchase-grid .form-group {
  display: grid;
  gap: 6px;
}

.purchase-grid .form-group--full {
  grid-column: 1 / -1;
}

.purchase-grid label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-soft);
}

.purchase-grid input,
.purchase-grid textarea {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--surface);
  color: var(--text);
}

.purchase-grid input:focus,
.purchase-grid textarea:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent);
}

.purchase-total {
  font-weight: 800;
  color: var(--text);
}

.purchase-payment-note {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.88rem;
}

.purchase-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

@media (max-width: 768px) {
  .purchase-grid {
    grid-template-columns: 1fr;
  }

  .purchase-actions {
    flex-direction: column-reverse;
  }

  .purchase-actions .btn {
    width: 100%;
  }
}