/* ==========================================
   ANIMATION UTILITIES
   ========================================== */

/* Fade variants */
.fade-in {
    opacity: 0;
    transition: opacity 0.8s var(--ease-out-expo);
}

.fade-in.is-visible {
    opacity: 1;
}

/* Slide variants */
.slide-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-out-expo),
                transform 0.8s var(--ease-out-expo);
}

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

/* Scale variants */
.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s var(--ease-out-expo),
                transform 0.6s var(--ease-out-expo);
}

.scale-in.is-visible {
    opacity: 1;
    transform: scale(1);
}

/* Stagger children */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s var(--ease-out-expo),
                transform 0.5s var(--ease-out-expo);
}

.stagger-children.is-visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }

/* Word reveal animation (for titles) */
.word-reveal .word {
    display: inline-block;
    overflow: hidden;
}

.word-reveal .word span {
    display: inline-block;
    transform: translateY(100%);
    transition: transform 0.6s var(--ease-out-expo);
}

.word-reveal.is-visible .word span {
    transform: translateY(0);
}

/* Line reveal animation */
.line-reveal {
    overflow: hidden;
}

.line-reveal span {
    display: block;
    transform: translateY(100%);
    transition: transform 0.8s var(--ease-out-expo);
}

.line-reveal.is-visible span {
    transform: translateY(0);
}

/* Magnetic hover effect (applied via JS) */
.magnetic {
    transition: transform 0.3s var(--ease-out-expo);
}

/* Parallax layers */
.parallax-slow {
    will-change: transform;
}

.parallax-fast {
    will-change: transform;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .slide-up,
    .fade-in,
    .scale-in {
        opacity: 1;
        transform: none;
    }
}