/*
 * Form Components - Samsung Style
 * Componenti form con design Samsung: input, select, checkbox, radio, calendar
 */

/* Form Group Container */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.form-group.required .form-label::after {
    content: ' *';
    color: #E74C3C;
}

/* Form Labels */
.form-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    display: block;
}

.form-label-secondary {
    font-size: var(--text-xs);
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-top: var(--space-xs);
}

/* Text Inputs */
.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    background: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--samsung-blue);
    box-shadow: 0 0 0 3px rgba(20, 40, 160, 0.1);
}

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

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.7;
}

/* Disabled State */
.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
    background: var(--color-gray-100);
    color: var(--color-text-secondary);
    cursor: not-allowed;
    opacity: 0.6;
}

/* Error State */
.form-input.error,
.form-textarea.error,
.form-select.error {
    border-color: #E74C3C;
}

.form-input.error:focus,
.form-textarea.error:focus,
.form-select.error:focus {
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

/* Success State */
.form-input.success,
.form-textarea.success,
.form-select.success {
    border-color: #27AE60;
}

.form-input.success:focus,
.form-textarea.success:focus,
.form-select.success:focus {
    box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

/* Textarea Specific */
.form-textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.6;
}

/* Select Specific */
.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='%23000000'%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-md) center;
    background-size: 20px;
    padding-right: calc(var(--space-md) + 32px);
    cursor: pointer;
}

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

/* Form Error Message */
.form-error-message {
    font-size: var(--text-sm);
    color: #E74C3C;
    margin-top: var(--space-xs);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

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

/* Form Success Message */
.form-success-message {
    font-size: var(--text-sm);
    color: #27AE60;
    margin-top: var(--space-xs);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

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

/* Checkbox & Radio */
.form-checkbox,
.form-radio {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    user-select: none;
}

.form-checkbox input[type="checkbox"],
.form-radio input[type="radio"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-300);
    background: var(--color-white);
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.form-checkbox input[type="checkbox"] {
    border-radius: var(--radius-sm);
}

.form-radio input[type="radio"] {
    border-radius: 50%;
}

.form-checkbox input[type="checkbox"]:checked,
.form-radio input[type="radio"]:checked {
    background: var(--samsung-blue);
    border-color: var(--samsung-blue);
}

.form-checkbox input[type="checkbox"]:checked::before {
    content: '';
    display: block;
    width: 12px;
    height: 12px;
    margin: 2px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='white'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M5 13l4 4L19 7'%3E%3C/path%3E%3C/svg%3E");
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.form-radio input[type="radio"]:checked::before {
    content: '';
    display: block;
    width: 10px;
    height: 10px;
    margin: 3px;
    background: var(--color-white);
    border-radius: 50%;
}

.form-checkbox input[type="checkbox"]:focus,
.form-radio input[type="radio"]:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(20, 40, 160, 0.1);
}

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

/* Checkbox Group & Radio Group */
.form-checkbox-group,
.form-radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* Input Group (con icone o bottoni) */
.form-input-group {
    display: flex;
    align-items: stretch;
    width: 100%;
}

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

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

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

.form-input-addon {
    display: flex;
    align-items: center;
    padding: 0 var(--space-md);
    background: var(--color-gray-100);
    border: 2px solid var(--color-gray-300);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    white-space: nowrap;
}

.form-input-addon:first-child {
    border-right: none;
    border-top-left-radius: var(--radius-lg);
    border-bottom-left-radius: var(--radius-lg);
}

.form-input-addon:last-child {
    border-left: none;
    border-top-right-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
}

/* Form Row (fields inline) */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

/* Booking Calendar Widget */
.booking-calendar {
    background: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    max-width: 400px;
    margin: 0 auto;
}

.booking-calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--color-gray-300);
}

.booking-calendar-header h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-black);
    margin: 0;
}

.booking-calendar-nav {
    display: flex;
    gap: var(--space-sm);
}

.booking-calendar-nav button {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-100);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.booking-calendar-nav button:hover {
    background: var(--samsung-blue);
    color: var(--color-white);
}

.booking-calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.booking-calendar-weekday {
    text-align: center;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
    padding: var(--space-xs);
}

.booking-calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-xs);
}

.booking-calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: 500;
    background: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.booking-calendar-day:hover {
    background: var(--color-gray-100);
    border-color: var(--samsung-blue);
}

.booking-calendar-day.selected {
    background: var(--samsung-blue);
    border-color: var(--samsung-blue);
    color: var(--color-white);
    font-weight: 700;
}

.booking-calendar-day.disabled {
    background: var(--color-gray-100);
    color: var(--color-text-secondary);
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.booking-calendar-day.today {
    border-color: var(--samsung-blue);
    font-weight: 700;
}

/* Time Slots */
.booking-time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.booking-time-slot {
    padding: var(--space-md);
    text-align: center;
    font-size: var(--text-sm);
    font-weight: 600;
    background: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.booking-time-slot:hover {
    background: var(--color-gray-100);
    border-color: var(--samsung-blue);
}

.booking-time-slot.selected {
    background: var(--samsung-blue);
    border-color: var(--samsung-blue);
    color: var(--color-white);
}

.booking-time-slot.disabled {
    background: var(--color-gray-100);
    color: var(--color-text-secondary);
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .booking-calendar {
        max-width: 100%;
    }

    .booking-time-slots {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
}