/* 
 * ANIMATIONS.CSS - Unified Animation System for Experiments
 * Synchronized with src/styles/main.css for visual parity.
 */

:root {
    /* --- Easing & Timing --- */
    --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
    --anim-fast: 800ms;
    --anim-md: 1500ms;
    --anim-slow: 2000ms;

    --reveal-dist: 20px;
    --drop-dist: 20px;
    --rise-dist: var(--reveal-dist);

    /* --- Combined Transitions --- */
    --transition-enter: var(--anim-md) var(--ease-smooth);
    --transition-exit: var(--anim-fast) var(--ease-smooth);
}

/* --- 1. Reveal Utility Classes (Scroll Animations) --- */
.reveal {
    opacity: 0;
    will-change: transform, opacity;
}

.reveal-left {
    transform: translate3d(calc(-1 * var(--reveal-dist)), 0, 0);
}

.reveal-up {
    transform: translate3d(0, var(--reveal-dist), 0);
}

.reveal-right {
    transform: translate3d(var(--reveal-dist), 0, 0);
}

.reveal-down {
    transform: translate3d(0, calc(-1 * var(--reveal-dist)), 0);
}

.reveal.active {
    animation: slideInLeft var(--anim-md) var(--ease-smooth) forwards;
}

.reveal-right.active,
.reveal-down.active {
    animation: slideInRight var(--anim-md) var(--ease-smooth) forwards;
}

.reveal-up.active {
    animation: riseFromBelow var(--anim-md) var(--ease-smooth) forwards;
}

.reveal.exiting {
    animation: slideOutLeft var(--anim-fast) var(--ease-smooth) forwards;
}

.reveal-right.exiting,
.reveal-down.exiting {
    animation: slideOutRight var(--anim-fast) var(--ease-smooth) forwards;
}

/* --- 2. Shared Keyframes --- */
@keyframes headerSlideDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes dropFromAbove {
    from {
        opacity: 0;
        transform: translate3d(0, calc(-1 * var(--drop-dist)), 0);
    }

    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes riseFromBelow {
    from {
        opacity: 0;
        transform: translate3d(0, var(--rise-dist), 0);
    }

    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translate3d(calc(-1 * var(--reveal-dist)), 0, 0);
    }

    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translate3d(var(--reveal-dist), 0, 0);
    }

    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes slideOutLeft {
    from {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }

    to {
        opacity: 0;
        transform: translate3d(calc(-1 * var(--reveal-dist)), 0, 0);
    }
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }

    to {
        opacity: 0;
        transform: translate3d(var(--reveal-dist), 0, 0);
    }
}

/* Combined Entrance + Float handled in dashboard.css for better reliability */

/* --- 4. Mobile Performance & Fluidity (Disable Reveals) --- */
@media (max-width: 768px) {
    .reveal {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
        visibility: visible !important;
        transition: none !important;
    }

    .reveal-left,
    .reveal-up,
    .reveal-right,
    .reveal-down {
        transform: none !important;
        opacity: 1 !important;
    }
}

/* --- 5. Premium Solid Image Skeleton System --- */
.image-glass-placeholder {
    position: absolute;
    box-sizing: border-box;
    z-index: 4;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s cubic-bezier(0.25, 1, 0.5, 1), visibility 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    overflow: hidden;
    background: rgba(220, 220, 225, 0.95) !important; /* Premium solid light grey base */
    backdrop-filter: blur(12px); /* Frosted glass effect to smooth out and blur underlying components */
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
}

/* Match the exact image layout of sections (has yellow bg padding offset) */
.section-image-wrapper .image-glass-placeholder {
    top: 0;
    left: 0;
    right: 15px;
    bottom: 15px;
    width: auto;
    height: auto;
}

/* Match the exact image layout of galleries (has smaller yellow bg padding offset) */
.gallery-images-grid .section-image-wrapper .image-glass-placeholder {
    top: 0;
    left: 0;
    right: 10px !important;
    bottom: 10px !important;
    width: auto;
    height: auto;
}

/* Cards have no padding offset, covers exactly 50% height image container */
.card-image .image-glass-placeholder {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
}

/* Banner skeleton placeholder covers the whole hero slider */
.banner .image-glass-placeholder {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    z-index: 3; /* Positioned above media items but below content overlays */
}

/* Premium micro-animated GPU-accelerated white shimmer (prevents cut-off in middle) */
.image-glass-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 250%; /* Extended width to seamlessly support skewed angles on wide screen widths */
    height: 100%;
    background: linear-gradient(
        90deg,
        rgba(220, 220, 225, 0) 0%,
        rgba(255, 255, 255, 0.85) 50%,
        rgba(220, 220, 225, 0) 100%
    );
    transform: skewX(-20deg) translateX(-100%);
    animation: glass-shimmer 1.8s infinite cubic-bezier(0.25, 1, 0.5, 1);
    z-index: 5;
    will-change: transform;
}

@keyframes glass-shimmer {
    0% {
        transform: skewX(-20deg) translateX(-100%);
    }
    100% {
        transform: skewX(-20deg) translateX(100%);
    }
}

/* Image/Video hiding & revealing loading states */
.img-loading img,
.banner.img-loading .banner_item {
    opacity: 0 !important;
}

.img-loading .image-glass-placeholder,
.banner.img-loading .image-glass-placeholder {
    opacity: 1 !important;
    visibility: visible !important;
}

/* Ensure the image and videos fade in elegantly */
.section-image-wrapper img,
.card-image img {
    opacity: 1;
    transition: opacity 0.6s cubic-bezier(0.25, 1, 0.5, 1), transform 0.4s var(--ease-smooth) !important;
}