/* ========================================
   CALENDAR BASE - Variabili e Utility
   ======================================== */

:root {
    /* Colori calendario */
    --cal-primary: var(--color-primary);
    --cal-primary-light: var(--color-primary);
    --cal-primary-dark: #7e22ce;
    --cal-primary-bg: var(--color-primary-light);
    
    --cal-success: #22c55e;
    --cal-warning: var(--color-warning);
    --cal-danger: var(--color-danger);
    
    --cal-bg-white: #ffffff;
    --cal-bg-gray-50: var(--color-bg-secondary);
    --cal-bg-gray-100: var(--color-border-light);
    
    --cal-border-gray: var(--color-border);
    --cal-text-dark: var(--color-text);
    --cal-text-gray: var(--color-text-muted);
    --cal-text-light: var(--color-text-light);
    
    /* Spaziature */
    --cal-spacing-xs: 4px;
    --cal-spacing-sm: 8px;
    --cal-spacing-md: 12px;
    --cal-spacing-lg: 20px;
    --cal-spacing-xl: 30px;
    
    /* Border radius */
    --cal-radius-sm: 8px;
    --cal-radius-md: 12px;
    --cal-radius-lg: 16px;
    --cal-radius-xl: 20px;
    
    /* Shadows */
    --cal-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --cal-shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --cal-shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --cal-shadow-primary: 0 4px 12px rgba(0, 0, 0, 0.08);
    
    /* Transizioni */
    --cal-transition-fast: 0.2s ease;
    --cal-transition-normal: 0.3s ease;
    --cal-transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Utility classes */
.cal-hidden {
    display: none !important;
}

.cal-visible {
    display: block !important;
}

/* Loading state */
.cal-loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.cal-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 4px solid var(--cal-border-gray);
    border-top-color: var(--cal-primary);
    border-radius: 50%;
    animation: cal-spin 0.8s linear infinite;
}

@keyframes cal-spin {
    to { transform: rotate(360deg); }
}

/* Badges comuni */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-md);
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
}

.badge-success {
    background: #dcfce7;
    color: #166534;
}

.badge-warning {
    background: var(--color-warning-bg);
    color: #92400e;
}

.badge-danger {
    background: var(--color-danger-bg);
    color: #991b1b;
}

/* Buttons comuni */
.cal-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border: none;
    border-radius: var(--cal-radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--cal-transition-fast);
    text-decoration: none;
}

.cal-btn:hover {
    transform: translateY(-2px);
}

.cal-btn:active {
    transform: translateY(0);
}

.cal-btn-primary {
    background: linear-gradient(135deg, var(--cal-primary), var(--cal-primary-light));
    color: white;
    box-shadow: var(--cal-shadow-primary);
}

.cal-btn-primary:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.cal-btn-outline {
    background: transparent;
    border: 2px solid var(--cal-primary);
    color: var(--cal-primary);
}

.cal-btn-outline:hover {
    background: var(--cal-primary-bg);
}

/* Responsive helpers */
.mobile-only {
    display: none;
}

.desktop-only {
    display: block;
}

@media (max-width: 768px) {
    .mobile-only {
        display: block;
    }
    
    .desktop-only {
        display: none;
    }
}