/**
 * D2U Ségur - Composant Formulaires
 * Design médical professionnel, haute lisibilité
 * 
 * Classes disponibles :
 * - .form-group : groupe label + input
 * - .form-label : label
 * - .form-input, .form-textarea, .form-select : champs
 * - .form-checkbox, .form-radio : cases à cocher
 * - .form-error : message d'erreur
 */

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

.form-group {
  margin-bottom: var(--space-5);
}

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

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

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

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

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

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

.form-input,
.form-textarea,
.form-select {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--foreground);
  
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  
  transition: 
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

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

.form-input:hover:not(:disabled),
.form-textarea:hover:not(:disabled),
.form-select:hover:not(:disabled) {
  border-color: var(--border-hover);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(5, 37, 56, 0.1);
}

.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--background-subtle);
}

/* -- Tailles -- */
.form-input-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

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

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

.form-input-error:focus,
.form-textarea-error:focus,
.form-select-error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

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

.form-input-success:focus {
  box-shadow: 0 0 0 3px rgba(5, 81, 69, 0.1);
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-textarea-auto {
  resize: none;
  overflow: hidden;
}

/* ==========================================================================
   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 24 24' stroke='%238c9fa6'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 1.25em;
  padding-right: var(--space-10);
}

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

.form-checkbox,
.form-radio {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  user-select: none;
}

.form-checkbox input,
.form-radio input {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  background: var(--background);
  cursor: pointer;
  transition: 
    background-color var(--transition-fast),
    border-color var(--transition-fast);
}

.form-checkbox input {
  border-radius: var(--radius-sm);
}

.form-radio input {
  border-radius: 50%;
}

.form-checkbox input:hover,
.form-radio input:hover {
  border-color: var(--primary);
}

.form-checkbox input:checked,
.form-radio input:checked {
  background: var(--primary);
  border-color: var(--primary);
}

.form-checkbox input:checked {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23ffffff' stroke-width='3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M5 13l4 4L19 7'%3E%3C/path%3E%3C/svg%3E");
  background-position: center;
  background-size: 12px;
  background-repeat: no-repeat;
}

.form-radio input:checked {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ffffff'%3E%3Ccircle cx='12' cy='12' r='5'%3E%3C/circle%3E%3C/svg%3E");
  background-position: center;
  background-size: 24px;
  background-repeat: no-repeat;
}

.form-checkbox input:focus-visible,
.form-radio input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.form-checkbox-label,
.form-radio-label {
  font-size: var(--text-sm);
}

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

.form-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
}

.form-toggle input {
  appearance: none;
  width: 44px;
  height: 24px;
  background: var(--muted-light);
  border-radius: var(--radius-full);
  position: relative;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.form-toggle input::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--background);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.form-toggle input:checked {
  background: var(--primary);
}

.form-toggle input:checked::before {
  transform: translateX(20px);
}

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

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

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

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

.form-input-icon-right .form-input {
  padding-left: var(--space-4);
  padding-right: var(--space-10);
}

.form-input-icon-right .icon {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
}

/* ==========================================================================
   ERROR MESSAGE
   ========================================================================== */

.form-error {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--error);
  margin-top: var(--space-2);
}

.form-error svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ==========================================================================
   PASSWORD INPUT WITH TOGGLE
   ========================================================================== */

.password-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-wrapper .form-input {
  padding-right: var(--space-12);
}

.password-toggle {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--muted);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.password-toggle:hover {
  color: var(--foreground);
}

.password-toggle svg {
  width: 20px;
  height: 20px;
}

/* Icon visibility states */
.password-toggle .icon-show,
.password-toggle .icon-hide {
  display: block;
}

.password-toggle .icon-hide {
  display: none;
}

.password-toggle .icon-show.hidden {
  display: none;
}

.password-toggle .icon-hide.hidden {
  display: none;
}

.password-toggle .icon-hide:not(.hidden) {
  display: block;
}