/* Advanced GSAP-ready animations */

/* Will-change optimizations */
.will-animate {
    will-change: transform, opacity;
}

/* Project card filtering animations */
.project-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card.filtered-in {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.project-card.filtered-out {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
}

/* Filter buttons animations */
.filter-btn {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.filter-btn:hover::before {
    left: 100%;
}

.filter-btn.active {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Fade in up animation for filtered cards */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Custom cursor */
.custom-cursor {
    width: 10px;
    height: 10px;
    background-color: var(--color-secondary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.2s ease;
}

.cursor-follower {
    width: 30px;
    height: 30px;
    border: 2px solid var(--color-secondary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9997;
    transition: transform 0.3s ease;
}

/* Parallax layers */
.parallax-container {
    position: relative;
    overflow: hidden;
}

.parallax-layer {
    position: absolute;
    inset: 0;
}

/* Text reveal animations */
.split-text {
    overflow: hidden;
}

.split-text .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
}

/* Magnetic button effect */
.magnetic-btn {
    position: relative;
    transition: transform 0.3s ease;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-white);
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 2s;
}

.scroll-indicator span {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background-color: var(--color-white);
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-secondary);
    transform: translateY(-100%);
    animation: scrollLineAnim 2s ease infinite;
}

@keyframes scrollLineAnim {
    0% {
        transform: translateY(-100%);
    }
    100% {
        transform: translateY(100%);
    }
}

/* Image reveal effect */
.image-reveal {
    position: relative;
    overflow: hidden;
}

.image-reveal::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: var(--color-primary);
    z-index: 1;
    transform-origin: left;
}

.image-reveal img {
    opacity: 0;
}

/* Portfolio filter animations */
.filter-btn {
    position: relative;
    overflow: hidden;
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width 0.3s ease;
}

.filter-btn.active::after,
.filter-btn:hover::after {
    width: 100%;
}

/* Project hover effects */
.project-hover {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-item:hover .project-hover {
    opacity: 1;
}

.hover-content {
    text-align: center;
    color: var(--color-white);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.project-item:hover .hover-content {
    transform: translateY(0);
}

/* Page transitions */
.page-transition {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
}

.transition-layer {
    position: absolute;
    inset: 0;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
}

/* Building blocks loader animation */
.building-blocks {
    display: grid;
    grid-template-columns: repeat(3, 30px);
    gap: 10px;
}

.building-block {
    width: 30px;
    height: 30px;
    background-color: var(--color-secondary);
    opacity: 0;
    transform: translateY(20px);
}