/* ==========================================================================
   SCROLL ANIMATIONS — Reveal on scroll with IntersectionObserver
   ========================================================================== */

/* --- Base state: hidden --- */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition:
        opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

.reveal.reveal--left {
    transform: translateX(-40px);
}

.reveal.reveal--right {
    transform: translateX(40px);
}

.reveal.reveal--scale {
    transform: scale(0.95);
}

/* --- Visible state --- */
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* --- Stagger delays for grids --- */
.reveal-delay-1 {
    transition-delay: 0.08s;
}

.reveal-delay-2 {
    transition-delay: 0.16s;
}

.reveal-delay-3 {
    transition-delay: 0.24s;
}

.reveal-delay-4 {
    transition-delay: 0.32s;
}

/* ==========================================================================
   HERO → CONTENT TRANSITION — Gradient fade
   ========================================================================== */

.hero-fade-out {
    position: relative;
}

.hero-fade-out::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 6vw;
    min-height: 40px;
    background: linear-gradient(to bottom, rgba(17, 17, 19, 0), var(--ink));
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-position: bottom;
    pointer-events: none;
    z-index: 5;
}

/* ==========================================================================
   REDUCED MOTION — Accessibility
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .reveal.reveal--left,
    .reveal.reveal--right,
    .reveal.reveal--scale {
        transform: none;
    }
}