/* TISSA animations — Oleada B / 2026-04-23
 * All durations capped at 400ms per .impeccable.md §6.
 * Stagger capped at 4 active children (240ms max delay).
 * Forbidden: bounce, spring, rubber, loop.
 * Canonical curve: cubic-bezier(0.22, 1, 0.36, 1) (out-expo).
 */

/* Fade-in on scroll (intersection observer target) */
.tissa-fade {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.35s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.tissa-fade.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children — cap at 4 active delays, 60ms step */
.tissa-stagger > *:nth-child(1) { transition-delay: 0.06s; }
.tissa-stagger > *:nth-child(2) { transition-delay: 0.12s; }
.tissa-stagger > *:nth-child(3) { transition-delay: 0.18s; }
.tissa-stagger > *:nth-child(4) { transition-delay: 0.24s; }
.tissa-stagger > *:nth-child(5) { transition-delay: 0.24s; } /* capped */
.tissa-stagger > *:nth-child(6) { transition-delay: 0.24s; } /* capped */

/* Hover lift for image-only containers — .tissa-lift selector */
/* NOTE: NOT applied to text-containing cards per §6 */
a[href^="/work/"],
.tissa-lift {
    transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}
a[href^="/work/"]:hover,
.tissa-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(37, 38, 40, 0.08);
}

/* Smooth scrolling */
html { scroll-behavior: smooth; }

/* Nav CTA shimmer (not bounce — just a sheen slide) */
header a[href*="contact"]:last-child {
    position: relative;
    overflow: hidden;
}
header a[href*="contact"]:last-child::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.12);
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}
header a[href*="contact"]:last-child:hover::after {
    transform: translateX(100%);
}

/* Hero H1 reveal on load — capped at 400ms */
main > article:first-child h1 {
    animation: tissa-hero-in 0.4s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes tissa-hero-in {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Section reveal on entry */
main section {
    animation-fill-mode: both;
}

/* Prefer reduced motion: disable everything */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}