/* Smooth animation for divider */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.ba-item {
    animation: slideIn 0.5s ease forwards;
}

.ba-item:nth-child(2) {
    animation-delay: 0.2s;
}

/* Tooltip for handle */
img-comparison-slider::part(handle)::after {
    content: 'Drag to compare';
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    font-family: var(--body-font-family);
}

img-comparison-slider::part(handle):hover::after {
    opacity: 1;
}

/* Responsive tooltip */
@media (max-width: 768px) {
    img-comparison-slider::part(handle)::after {
        display: none;
    }
}

/* Gradient overlay on hover */
.ba-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 1;
    border-radius: 12px;
}

.ba-item:hover::before {
    opacity: 1;
}

/* Performance optimization */
.ba-comparison-slider {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .before-after-section {
        background: #1a1a1a;
    }
    
    .ba-label-before {
        background: rgba(0, 0, 0, 0.8);
    }
    
    .ba-caption {
        background: rgba(0, 0, 0, 0.8);
    }
}

/* Анимация для появления/исчезновения ярлыков */
.ba-label {
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
}

.ba-label.hidden {
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8);
}

.ba-label-before {
    transform-origin: left center;
}

.ba-label-after {
    transform-origin: right center;
}

/* Дополнительный эффект при наведении на ярлыки */
.ba-label:hover {
    transform: scale(1.05);
}

.ba-label-before.ba-label.hidden:hover,
.ba-label-after.ba-label.hidden:hover {
    transform: scale(0.8);
}