/* Scroll-triggered reveal: text and images flow in when they enter the viewport.
   Use class "page-reveal" and attribute data-reveal on sections. JS adds .is-visible when in view.
   Without JS (or before script runs), content stays visible via body:not(.reveal-js-ready). */

body:not(.reveal-js-ready) .page-reveal,
body:not(.reveal-js-ready) .page-reveal .page-reveal-stagger > * {
    opacity: 1;
    transform: none;
}

body.reveal-js-ready .page-reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

body.reveal-js-ready .page-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Optional: stagger direct children (e.g. cards in a row) */
body.reveal-js-ready .page-reveal.is-visible .page-reveal-stagger > * {
    animation: pageRevealStagger 0.55s ease-out forwards;
}

body.reveal-js-ready .page-reveal .page-reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
}

body.reveal-js-ready .page-reveal .page-reveal-stagger > *:nth-child(1) { animation-delay: 0.05s; }
body.reveal-js-ready .page-reveal .page-reveal-stagger > *:nth-child(2) { animation-delay: 0.1s; }
body.reveal-js-ready .page-reveal .page-reveal-stagger > *:nth-child(3) { animation-delay: 0.15s; }
body.reveal-js-ready .page-reveal .page-reveal-stagger > *:nth-child(4) { animation-delay: 0.2s; }
body.reveal-js-ready .page-reveal .page-reveal-stagger > *:nth-child(5) { animation-delay: 0.25s; }
body.reveal-js-ready .page-reveal .page-reveal-stagger > *:nth-child(6) { animation-delay: 0.3s; }
body.reveal-js-ready .page-reveal .page-reveal-stagger > *:nth-child(7) { animation-delay: 0.35s; }
body.reveal-js-ready .page-reveal .page-reveal-stagger > *:nth-child(8) { animation-delay: 0.4s; }

@keyframes pageRevealStagger {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Alternate slide direction for variety: image from left, text from right */
body.reveal-js-ready .page-reveal-from-left {
    opacity: 0;
    transform: translateX(-28px);
    transition: opacity 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
body:not(.reveal-js-ready) .page-reveal-from-left { opacity: 1; transform: none; }
body.reveal-js-ready .page-reveal-from-left.is-visible {
    opacity: 1;
    transform: translateX(0);
}

body.reveal-js-ready .page-reveal-from-right {
    opacity: 0;
    transform: translateX(28px);
    transition: opacity 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
body:not(.reveal-js-ready) .page-reveal-from-right { opacity: 1; transform: none; }
body.reveal-js-ready .page-reveal-from-right.is-visible {
    opacity: 1;
    transform: translateX(0);
}