/* ============================================
   Advanced Animations & Effects
   ============================================ */

/* Parallax Effect */
.parallax-element {
    will-change: transform;
}

/* Reveal Effect */
.reveal-container {
    position: relative;
    overflow: hidden;
}

.reveal-overlay {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-primary);
    z-index: 1;
    transition: left 0.8s ease;
}

.reveal-container.is-visible .reveal-overlay {
    left: 100%;
}

.reveal-content {
    position: relative;
    z-index: 2;
}

/* Sticky Scroll Effect */
.sticky-scroll-container {
    height: 300vh;
    position: relative;
}

.sticky-section {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Hover Effects */
.hover-expand {
    transition: transform var(--transition-normal);
}

.hover-expand:hover {
    transform: scale(1.05);
}

.hover-color-overlay {
    position: relative;
    overflow: hidden;
}

.hover-color-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-primary);
    opacity: 0;
    mix-blend-mode: multiply;
    transition: opacity var(--transition-normal);
    z-index: 1;
    pointer-events: none;
}

.hover-color-overlay:hover::before {
    opacity: 1;
}

.hover-skew {
    transition: transform var(--transition-normal);
}

.hover-skew:hover {
    transform: skewX(-10deg);
}

/* Image Grayscale to Color - Optimized */
.grayscale-hover {
    filter: grayscale(100%);
    transition: filter var(--transition-normal);
    will-change: filter;
}

.grayscale-hover:hover {
    filter: grayscale(0%);
}

/* Slide Up Animation */
.slide-up {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    will-change: opacity, transform;
}

.slide-up.is-visible {
    opacity: 1;
    transform: translateY(0);
    will-change: auto;
}

/* Expand Animation */
.expand {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.6s ease, transform 0.6s ease;
    will-change: opacity, transform;
}

.expand.is-visible {
    opacity: 1;
    transform: scale(1);
    will-change: auto;
}

/* Mobile Optimization - Disable Complex Animations */
@media (max-width: 768px) {
    .parallax-element {
        transform: none !important;
    }

    .hover-skew:hover {
        transform: none;
    }

    /* Optimize animations for mobile */
    .hover-color-overlay::before {
        transition-duration: 0.2s;
    }
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}