/* ========================================
   Forms
   ======================================== */

/* Form group */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group:last-child {
  margin-bottom: 0;
}

/* Labels */
.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
}

.form-label--required::after {
  content: " *";
  color: var(--color-error);
}

/* Input fields */
.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-gray-900);
  background-color: white;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
  opacity: 0.6;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

/* Textarea */
.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right var(--spacing-sm) center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.form-check-input {
  flex-shrink: 0;
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.125rem;
  appearance: none;
  border: 1px solid var(--color-gray-300);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  cursor: pointer;
}

.form-check-input[type="checkbox"] {
  border-radius: var(--radius-sm);
}

.form-check-input[type="radio"] {
  border-radius: var(--radius-full);
}

.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  background-size: 0.75rem;
  background-position: center;
  background-repeat: no-repeat;
}

.form-check-input[type="checkbox"]:checked {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='white'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
}

.form-check-input[type="radio"]:checked {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='white'%3E%3Ccircle cx='8' cy='8' r='3'/%3E%3C/svg%3E");
}

.form-check-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-check-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  cursor: pointer;
}

/* Help text */
.form-help {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

/* Validation states */
.form-input--error,
.form-select--error,
.form-textarea--error {
  border-color: var(--color-error);
}

.form-input--error:focus,
.form-select--error:focus,
.form-textarea--error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input--success,
.form-select--success,
.form-textarea--success {
  border-color: var(--color-success);
}

.form-input--success:focus,
.form-select--success:focus,
.form-textarea--success:focus {
  border-color: var(--color-success);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-error {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-error);
}

.form-success {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-success);
}

/* Input group (with icons or buttons) */
.input-group {
  display: flex;
  width: 100%;
}

.input-group .form-input {
  flex: 1;
}

.input-group .form-input:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.input-group .form-input:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  background-color: var(--color-gray-100);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
}

.input-group-text:first-child {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right: 0;
}

.input-group-text:last-child {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border-left: 0;
}

/* Form layouts */
.form-row {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.form-row .form-group {
  flex: 1;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .form-row {
    flex-direction: column;
  }
}