/**
 * File: assets/css/forms.css
 * CSS Forms - Conforme AGID
 * Stili dedicati per form, input, validazione
 * Versione: 1.0.1 - FIX layout label
 */

/* ========================================
   FORM CONTAINER
   ======================================== */

.form-wrapper {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: var(--spacing-xxl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.form-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-light);
}

.form-section:last-child {
    border-bottom: none;
}

.form-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-section-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

/* ========================================
   FORM GROUPS - FIX LAYOUT
   ======================================== */

.form-group {
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

.form-group-inline {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    flex-wrap: wrap;
}

.form-group-inline > .form-group {
    flex: 1 1 calc(50% - var(--spacing-md));
    min-width: 250px;
    margin-bottom: var(--spacing-md);
}

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

.form-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    order: -1; /* Assicura che label sia sempre prima */
}

.form-label-required::after {
    content: " *";
    color: var(--error-color);
    font-weight: 700;
}

.form-label-optional::after {
    content: " (opzionale)";
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 0.875rem;
}

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

.form-control,
.form-input {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: 'Titillium Web', sans-serif;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus,
.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-control:disabled,
.form-input:disabled {
    background-color: var(--bg-light);
    color: var(--text-disabled);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-control::placeholder {
    color: var(--text-disabled);
    opacity: 1;
}

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

/* Select */
select.form-control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%235C6F82'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.5rem;
    padding-right: 3rem;
    appearance: none;
}

/* ========================================
   INPUT GROUPS (con icone/addon)
   ======================================== */

.input-group {
    display: flex;
    width: 100%;
}

.input-group-prepend,
.input-group-append {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: var(--bg-light);
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
}

.input-group-prepend {
    border-right: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group-append {
    border-left: none;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

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

.input-group .form-control:first-child {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group .form-control:last-child {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

/* ========================================
   CHECKBOX E RADIO
   ======================================== */

.form-check {
    display: block;
    margin-bottom: var(--spacing-sm);
    padding-left: 0;
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: var(--spacing-sm);
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.form-check-input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.form-check-label {
    font-weight: 400;
    cursor: pointer;
    user-select: none;
}

/* ========================================
   VALIDAZIONE
   ======================================== */

/* Stili validazione successo */
.form-control.is-valid,
.form-input.is-valid {
    border-color: var(--success-color);
    padding-right: 3rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23008758'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.5rem;
}

.form-control.is-valid:focus,
.form-input.is-valid:focus {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(0, 135, 88, 0.1);
}

/* Stili validazione errore */
.form-control.is-invalid,
.form-input.is-invalid {
    border-color: var(--error-color);
    padding-right: 3rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23D9364F'%3E%3Cpath d='M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.5rem;
}

.form-control.is-invalid:focus,
.form-input.is-invalid:focus {
    border-color: var(--error-color);
    box-shadow: 0 0 0 3px rgba(217, 54, 79, 0.1);
}

/* ========================================
   MESSAGGI FEEDBACK
   ======================================== */

.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.valid-feedback {
    display: none;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--success-color);
    font-weight: 600;
}

.invalid-feedback {
    display: none;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--error-color);
    font-weight: 600;
}

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

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

/* ========================================
   AUTOCOMPLETE
   ======================================== */

.autocomplete-wrapper {
    position: relative;
    width: 100%;
}

.autocomplete-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: var(--z-dropdown);
    max-height: 300px;
    overflow-y: auto;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    box-shadow: var(--shadow-md);
    display: none;
}

.autocomplete-results.active {
    display: block;
}

.autocomplete-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    border-bottom: 1px solid var(--border-light);
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover,
.autocomplete-item.active {
    background-color: var(--bg-lighter);
}

.autocomplete-item:focus {
    background-color: var(--primary-light);
    color: white;
    outline: none;
}

.autocomplete-loading {
    padding: var(--spacing-md);
    text-align: center;
    color: var(--text-secondary);
}

.autocomplete-no-results {
    padding: var(--spacing-md);
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

/* ========================================
   FORM BUTTONS
   ======================================== */

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

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

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

.btn-submit {
    min-width: 160px;
    padding: 0.875rem 2rem;
    font-size: 1.125rem;
    font-weight: 700;
    position: relative;
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-submit .spinner {
    display: none;
    position: absolute;
    left: 1rem;
}

.btn-submit.loading .spinner {
    display: inline-block;
}

/* ========================================
   FIELDSET E LEGEND
   ======================================== */

fieldset {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

legend {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color);
    padding: 0 var(--spacing-sm);
    width: auto;
    margin-bottom: 0;
}

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

@media (max-width: 768px) {
    .form-wrapper {
        padding: var(--spacing-lg);
    }
    
    .form-group-inline {
        flex-direction: column;
    }
    
    .form-group-inline > .form-group {
        flex: 1 1 100%;
        min-width: 100%;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn-submit {
        width: 100%;
    }
}

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

.file-upload-wrapper {
    position: relative;
    overflow: hidden;
    display: inline-block;
}

.file-upload-input {
    position: absolute;
    left: -9999px;
}

.file-upload-label {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    font-weight: 600;
}

.file-upload-label:hover {
    background-color: var(--border-color);
    border-color: var(--primary-color);
}

.file-upload-name {
    display: block;
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   PROGRESS BAR (per form multi-step)
   ======================================== */

.form-progress {
    margin-bottom: var(--spacing-xl);
}

.form-progress-bar {
    height: 8px;
    background-color: var(--border-light);
    border-radius: 999px;
    overflow: hidden;
}

.form-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 999px;
    transition: width var(--transition-slow);
}

.form-progress-steps {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
}

.form-progress-step {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.form-progress-step.active {
    color: var(--primary-color);
}

.form-progress-step.completed {
    color: var(--success-color);
}