/* =========================================================
   animations.css — keyframes + scroll-reveal primitives
   Only transform / opacity / filter animated.
   Ported from kaminoone/css/animations.css.
========================================================= */

/* ---- Scroll reveal (driven by IntersectionObserver) ---- */
.reveal {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity var(--dur-slow) var(--ease-out),
                transform var(--dur-slow) var(--ease-out);
    transition-delay: var(--reveal-delay, 0ms);
    will-change: transform, opacity;
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

.reveal--scale {
    transform: translateY(34px) scale(.96);
}

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

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

/* stagger children */
.reveal-group.is-visible > * {
    animation: rise var(--dur-slow) var(--ease-out) both;
}
.reveal-group.is-visible > *:nth-child(1) { animation-delay: 0ms; }
.reveal-group.is-visible > *:nth-child(2) { animation-delay: 90ms; }
.reveal-group.is-visible > *:nth-child(3) { animation-delay: 180ms; }
.reveal-group.is-visible > *:nth-child(4) { animation-delay: 270ms; }
.reveal-group.is-visible > *:nth-child(5) { animation-delay: 360ms; }
.reveal-group.is-visible > *:nth-child(6) { animation-delay: 450ms; }
.reveal-group.is-visible > *:nth-child(7) { animation-delay: 540ms; }
.reveal-group.is-visible > *:nth-child(8) { animation-delay: 630ms; }

@keyframes rise {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: none; }
}

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-14px); }
}

/* ---- No-JS safety net: if JS never runs (blocked/disabled), reveal
   targets must not stay hidden forever. The .reveal base state above
   already defaults to opacity:0 which would break no-JS pages, so we
   gate the hidden state behind html.js-ready (added by js/reveal.js
   the instant it boots). Without that class, everything is visible. ---- */
.reveal,
.reveal-group > * {
    opacity: 1;
    transform: none;
}

html.js-ready .reveal {
    opacity: 0;
    transform: translateY(34px);
}
html.js-ready .reveal--left  { transform: translateX(-40px); }
html.js-ready .reveal--right { transform: translateX(40px); }
html.js-ready .reveal--scale { transform: translateY(34px) scale(.96); }
html.js-ready .reveal.is-visible,
html.js-ready .reveal--left.is-visible,
html.js-ready .reveal--right.is-visible { opacity: 1; transform: none; }

html.js-ready .reveal-group > * { opacity: 0; }
html.js-ready .reveal-group.is-visible > * { opacity: 1; }

/* ---- Reduced motion: disable all motion, reveal everything ---- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
    }

    .reveal,
    html.js-ready .reveal,
    .reveal-group > *,
    html.js-ready .reveal-group > * {
        opacity: 1 !important;
        transform: none !important;
    }
}