/**
 * @file
 * LINCS Theme - Form Styles
 * 
 * Stili per i form e gli elementi di input.
 */

/* ========================================
   FORM BASE
   ======================================== */

.form {
  max-width: 600px;
}

.form__group {
  margin-bottom: var(--space-6);
}

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

.form__label--required::after {
  content: ' *';
  color: #DC2626;
}

.form__description {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

.form__error {
  font-size: var(--font-size-sm);
  color: #DC2626;
  margin-top: var(--space-1);
}

/* ========================================
   INPUT FIELDS
   ======================================== */

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-fast);
}

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

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

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(var(--sapienza-bordeaux-rgb), 0.1);
}

.form-input--error,
.form-textarea--error,
.form-select--error {
  border-color: #DC2626;
}

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

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

/* 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='%236B2737'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 44px;
}

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

.form-checkbox,
.form-radio {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-checkbox__input,
.form-radio__input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--sapienza-bordeaux);
  cursor: pointer;
}

.form-checkbox__label,
.form-radio__label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ========================================
   FORM ACTIONS
   ======================================== */

.form-actions {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-light);
}

.form-actions--centered {
  justify-content: center;
}

.form-actions--right {
  justify-content: flex-end;
}

/* ========================================
   SEARCH FORM
   ======================================== */

.search-form {
  position: relative;
  max-width: 400px;
}

.search-form__input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  padding-right: 48px;
  font-size: var(--font-size-base);
  border: 1px solid var(--border-medium);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
}

.search-form__input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(var(--sapienza-bordeaux-rgb), 0.1);
}

.search-form__button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--sapienza-bordeaux);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.search-form__button:hover {
  background-color: var(--sapienza-bordeaux-dark);
}

/* ========================================
   FILE UPLOAD
   ======================================== */

.form-file {
  position: relative;
}

.form-file__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.form-file__label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4);
  border: 2px dashed var(--border-medium);
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.form-file__label:hover {
  border-color: var(--sapienza-bordeaux);
  background-color: rgba(var(--sapienza-bordeaux-rgb), 0.02);
}

.form-file__icon {
  width: 48px;
  height: 48px;
  color: var(--text-tertiary);
}

.form-file__text {
  text-align: center;
}

.form-file__text strong {
  display: block;
  color: var(--sapienza-bordeaux);
  margin-bottom: var(--space-1);
}

.form-file__text span {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

/* ========================================
   FIELDSET
   ======================================== */

.fieldset {
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.fieldset__legend {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  padding: 0 var(--space-2);
}