/**
 * Form Component
 * Modern form elements with consistent styling
 */

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.form-control {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--surface-primary);
  border: var(--border-width-thin) solid var(--border-primary);
  border-radius: var(--border-radius-md);
  transition: all var(--duration-fast) var(--ease-out);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-control:disabled {
  background-color: var(--state-disabled);
  opacity: 0.6;
  cursor: not-allowed;
}

.form-control::placeholder {
  color: var(--text-tertiary);
  opacity: 0.7;
}

/* Form Control Sizes */
.form-control-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
}

.form-control-lg {
  padding: var(--space-4) var(--space-5);
  font-size: var(--font-size-lg);
}

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

/* Form Select */
.form-select {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-10) var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--surface-primary);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 16px 12px;
  border: var(--border-width-thin) solid var(--border-primary);
  border-radius: var(--border-radius-md);
  transition: all var(--duration-fast) var(--ease-out);
  appearance: none;
}

.form-select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Form Check (Checkbox/Radio) */
.form-check {
  display: flex;
  align-items: center;
  min-height: 24px;
  padding-left: 28px;
  margin-bottom: var(--space-2);
}

.form-check-input {
  width: 20px;
  height: 20px;
  margin-left: -28px;
  margin-right: var(--space-2);
  border: var(--border-width-thin) solid var(--border-primary);
  border-radius: var(--border-radius-sm);
  background-color: var(--surface-primary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.form-check-input:checked {
  background-color: var(--color-primary-500);
  border-color: var(--color-primary-500);
}

.form-check-input:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

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

/* Form Text (Helper Text) */
.form-text {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

/* Input Group */
.input-group {
  display: flex;
  width: 100%;
}

.input-group .form-control {
  flex: 1;
  border-radius: 0;
}

.input-group .form-control:first-child {
  border-top-left-radius: var(--border-radius-md);
  border-bottom-left-radius: var(--border-radius-md);
}

.input-group .form-control:last-child {
  border-top-right-radius: var(--border-radius-md);
  border-bottom-right-radius: var(--border-radius-md);
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  color: var(--text-secondary);
  background-color: var(--surface-secondary);
  border: var(--border-width-thin) solid var(--border-primary);
  border-radius: var(--border-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 Validation States */
.form-control.is-valid,
.form-select.is-valid {
  border-color: var(--color-success-500);
}

.form-control.is-valid:focus,
.form-select.is-valid:focus {
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--color-danger-500);
}

.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.valid-feedback {
  display: none;
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-success-700);
}

.invalid-feedback {
  display: none;
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-danger-700);
}

.form-control.is-valid ~ .valid-feedback {
  display: block;
}

.form-control.is-invalid ~ .invalid-feedback {
  display: block;
}

/* Form Grid */
.row.g-3 > * {
  padding-right: calc(var(--space-3) * 0.5);
  padding-left: calc(var(--space-3) * 0.5);
}

/* Responsive */
@media (max-width: 768px) {
  .form-control,
  .form-select {
    font-size: 16px; /* Prevents zoom on iOS */
  }
}