/**
 * Form Component Styles
 * Unified form system for admin and public
 */

/* ===========================================
   FORM GROUP
   =========================================== */

.form-group {
  margin-bottom: var(--spacing-4);
}

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

/* ===========================================
   FORM LABELS
   =========================================== */

.form-label {
  display: block;
  margin-bottom: var(--spacing-1-5);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
}

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

/* ===========================================
   FORM INPUTS
   =========================================== */

.form-input,
.form-control,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-2-5) var(--spacing-3);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-input:focus,
.form-control:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(28, 28, 30, 0.08);
}

.form-input::placeholder,
.form-control::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

/* ===========================================
   INVALID STATE
   =========================================== */

.form-input.is-invalid,
.form-control.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
  border-color: var(--color-error);
}

.form-input.is-invalid:focus,
.form-control.is-invalid:focus,
.form-select.is-invalid:focus,
.form-textarea.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(214, 69, 69, 0.1);
}

/* ===========================================
   TEXTAREA
   =========================================== */

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

/* ===========================================
   SELECT
   =========================================== */

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23636366' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-3) center;
  padding-right: var(--spacing-10);
  cursor: pointer;
}

/* ===========================================
   HELPER TEXT
   =========================================== */

.form-hint,
.form-help {
  margin-top: var(--spacing-1);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.form-error {
  margin-top: var(--spacing-1);
  font-size: var(--font-size-xs);
  color: var(--color-error);
}

/* ===========================================
   CHARACTER COUNTER
   =========================================== */

.char-counter {
  display: flex;
  justify-content: flex-end;
  gap: 0.25rem;
  margin-top: var(--spacing-1);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.char-counter.is-warning {
  color: var(--color-warning);
}

.char-counter.is-error {
  color: var(--color-error);
}

/* ===========================================
   CHECKBOX & RADIO
   =========================================== */

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-2);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  cursor: pointer;
  flex-shrink: 0;
}

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

/* Inline checkboxes */
.form-check-inline {
  display: inline-flex;
  margin-right: var(--spacing-4);
}

/* ===========================================
   FORM ROW (Grid Layout)
   =========================================== */

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
}

.form-row-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-4);
}

.form-row-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-4);
}

/* ===========================================
   INPUT SIZES
   =========================================== */

.form-input-sm,
.form-control-sm,
.form-select-sm {
  padding: var(--spacing-2) var(--spacing-2-5);
  font-size: var(--font-size-sm);
}

.form-input-lg,
.form-control-lg,
.form-select-lg {
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--font-size-lg);
}

/* ===========================================
   INPUT WITH ICON
   =========================================== */

.input-with-icon {
  position: relative;
}

.input-with-icon .form-input {
  padding-left: var(--spacing-10);
}

.input-with-icon .input-icon {
  position: absolute;
  left: var(--spacing-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.input-with-icon .input-icon svg {
  width: 18px;
  height: 18px;
}

/* ===========================================
   TOGGLE SWITCH
   =========================================== */

.toggle-switch {
  position: relative;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--color-border);
  border-radius: var(--radius-full);
  transition: background-color var(--transition-fast);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--color-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(18px);
}

.toggle-switch input:disabled + .toggle-slider {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===========================================
   QUANTITY SELECTOR
   =========================================== */

.quantity-selector {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.quantity-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.quantity-btn:hover:not(:disabled) {
  color: var(--color-text);
  background-color: var(--color-background-alt);
}

.quantity-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.quantity-value {
  width: 40px;
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
}

/* ===========================================
   DISABLED STATE
   =========================================== */

.form-input:disabled,
.form-control:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--color-background-alt);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

/* ===========================================
   RESPONSIVE
   =========================================== */

@media (max-width: 768px) {
  .form-row,
  .form-row-2,
  .form-row-3 {
    grid-template-columns: 1fr;
  }
}