/* ===== PRELOADER ===== */

#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-preloader);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== SCROLL REVEAL ANIMATIONS ===== */

.reveal {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: none !important;
}

/* Fade up */
.reveal-up {
    transform: translateY(30px);
}

/* Fade in */
.reveal-fade {
    transform: none;
}

/* Slide from left */
.reveal-left {
    transform: translateX(-30px);
}

/* Slide from right */
.reveal-right {
    transform: translateX(30px);
}

/* Scale up */
.reveal-scale {
    transform: scale(0.95);
}

/* Delay classes for staggered animations */
.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }

/* ===== HOVER ANIMATIONS ===== */

.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Image zoom on hover */
.img-zoom {
    overflow: hidden;
}

.img-zoom img {
    transition: transform var(--transition-slow);
}

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