@charset "UTF-8";

/* Grain Overlay for deep texture */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    pointer-events: none;
    z-index: 9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.06'/%3E%3C/svg%3E");
    opacity: 0.8;
}

/* Reveal elements */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Delayed reveals for hero */
.hero-title {
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(60px);
}

.hero-subtitle {
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
    opacity: 0;
    transform: translateY(40px);
}

.hero-cta {
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards;
    opacity: 0;
    transform: translateY(40px);
}

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

/* Micro-animations */
.collab-card {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.collab-card:hover {
    transform: scale(1.03) translateY(-8px);
    box-shadow: 0 10px 40px rgba(204, 255, 0, 0.05); /* very faint acid green glow behind */
    border-color: var(--color-accent);
}

/* Parallax potential on math symbols if added via JS */
.math-sym {
    transition: transform 0.1s linear;
}

@media (prefers-reduced-motion: reduce) {
    .reveal, .hero-title, .hero-subtitle, .hero-cta, .collab-card, .math-sym {
        transition: none !important;
        animation: none !important;
        transform: none !important;
        opacity: 1 !important;
    }
}