:root {
  --form-primary: #10b981;
  --form-success: #059669;
  --form-danger: #dc2626;
  --form-gray: #6b7280;
  --form-light: #f3f4f6;
  --form-border: #e5e7eb;
  --form-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  --form-focus-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  --form-transition: all 0.2s ease;
}

/* Modal sizing */
#inquiryModal .modal-dialog {
  max-width: 800px;
  width: 95%;
  margin: 1.75rem auto;
}

#inquiryModal .modal-content {
  border-radius: 1rem;
  border: none;
  box-shadow: var(--form-shadow);
}

#inquiryModal .modal-body {
  padding: 2rem;
}

#inquiryModal .modal-header {
  background-color: var(--form-light);
  border-bottom: 1px solid var(--form-border);
  padding: 1rem 1.5rem;
}

/* Form Container */
#inquiryForm {
  width: 100%;
  margin: 0 auto;
}

/* Form Layout */
.form-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  width: 100%;
}

.form-field {
  flex: 1;
  min-width: 0;
}

/* Labels */
.form-field label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--form-gray);
  font-size: 0.875rem;
}

.form-field label[data-required]::after {
  content: "*";
  color: var(--form-danger);
  margin-left: 0.25rem;
}

/* Inputs */
.form-field input,
.form-field textarea,
.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--form-border);
  border-radius: 0.5rem;
  font-size: 0.875rem;
  transition: var(--form-transition);
  background-color: white;
}

.form-field input:hover,
.form-field textarea:hover,
.form-control:hover {
  border-color: var(--form-primary);
}

.form-field input:focus,
.form-field textarea:focus,
.form-control:focus {
  outline: none;
  border-color: var(--form-primary);
  box-shadow: var(--form-focus-shadow);
}

/* Placeholders */
::placeholder {
  color: var(--form-gray);
  opacity: 0.7;
}

/* Checkbox Groups */
.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.checkbox-item input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  border-radius: 0.25rem;
  border: 2px solid var(--form-gray);
  transition: var(--form-transition);
  cursor: pointer;
}

.checkbox-item input[type="checkbox"]:checked {
  background-color: var(--form-primary);
  border-color: var(--form-primary);
}

.checkbox-item label {
  cursor: pointer;
  user-select: none;
}

/* Category Groups */
.category-group {
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 0.75rem;
  margin-bottom: 0.75rem;
}

.main-category {
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.subcategory-group {
  display: none;
  margin-left: 1.5rem;
  padding-left: 0.5rem;
  border-left: 2px solid #eee;
}

.subcategory-group.active {
  display: block;
  animation: slideDown 0.3s ease;
}

.subcategory {
  margin-bottom: 0.25rem;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Submit Button */
.form-submit {
  margin-top: 2rem;
  text-align: center;
}

.form-submit button {
  background-color: var(--form-primary);
  color: white;
  padding: 0.75rem 2rem;
  border-radius: 0.5rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: var(--form-transition);
  font-size: 0.875rem;
  letter-spacing: 0.025em;
  width: auto;
  min-width: 200px;
}

.form-submit button:hover {
  background-color: var(--form-success);
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(37, 99, 235, 0.1);
}

/* Form Validation */
.form-field input:invalid,
.form-field textarea:invalid,
.form-control.is-invalid {
  border-color: var(--form-danger);
}

.invalid-feedback {
  display: none;
  color: var(--form-danger);
  font-size: 0.75rem;
  margin-top: 0.25rem;
}

.was-validated .invalid-feedback {
  display: block;
}

.checkbox-group.invalid {
  border: 1px solid var(--form-danger);
  border-radius: 0.5rem;
  padding: 0.5rem;
}

/* Inquiry Trigger */
.inquiry-trigger {
  cursor: pointer;
}

.inquiry-trigger:hover {
  color: var(--form-primary) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
  #inquiryModal .modal-dialog {
    width: 95%;
    margin: 1rem auto;
  }

  #inquiryModal .modal-body {
    padding: 1rem;
  }

  .form-row {
    flex-direction: column;
    gap: 0.75rem;
  }

  .form-field input,
  .form-field textarea,
  .form-control {
    padding: 0.875rem;
    font-size: 1rem;
  }

  .checkbox-group {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .form-submit button {
    width: 100%;
    padding: 0.875rem;
  }
}