/* Animations CSS - scroll-triggered animations via IntersectionObserver */

/* Respect user preference for reduced motion */
@media (prefers-reduced-motion: reduce) {
    .anim-fade-in,
    .anim-slide-up,
    .anim-slide-left,
    .anim-slide-right,
    .anim-scale-in,
    .anim-stagger > * {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}

/* Base state (hidden before animation) */
.anim-fade-in {
    opacity: 0;
    transition: opacity 0.6s ease;
}
.anim-fade-in.is-visible { opacity: 1; }

.anim-slide-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.anim-slide-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.anim-slide-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.anim-slide-left.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.anim-slide-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.anim-slide-right.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.anim-scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.anim-scale-in.is-visible {
    opacity: 1;
    transform: scale(1);
}

/* Stagger children - each child delays slightly */
.anim-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.anim-stagger.is-visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: none; }
.anim-stagger.is-visible > *:nth-child(2) { transition-delay: 0.08s; opacity: 1; transform: none; }
.anim-stagger.is-visible > *:nth-child(3) { transition-delay: 0.16s; opacity: 1; transform: none; }
.anim-stagger.is-visible > *:nth-child(4) { transition-delay: 0.24s; opacity: 1; transform: none; }
.anim-stagger.is-visible > *:nth-child(5) { transition-delay: 0.32s; opacity: 1; transform: none; }
.anim-stagger.is-visible > *:nth-child(6) { transition-delay: 0.40s; opacity: 1; transform: none; }
.anim-stagger.is-visible > *:nth-child(7) { transition-delay: 0.48s; opacity: 1; transform: none; }
.anim-stagger.is-visible > *:nth-child(8) { transition-delay: 0.56s; opacity: 1; transform: none; }
.anim-stagger.is-visible > *:nth-child(n+9) { transition-delay: 0.64s; opacity: 1; transform: none; }

/* Continuous animations */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}
.anim-float { animation: float 3s ease-in-out infinite; }

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
.anim-shimmer {
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,.3) 50%, transparent 100%);
    background-size: 200% 100%;
    animation: shimmer 2s linear infinite;
}