/* ==========================================================================
   ICDB Theme — Animations & Scroll Reveals
   ========================================================================== */

/* ----- Keyframes ----- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes shimmer {
    0% { left: -75%; }
    100% { left: 125%; }
}

@keyframes kenburns {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.08);
    }
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes patternDrift {
    0% { background-position: 0 0; }
    100% { background-position: 60px 60px; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes countUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ----- Scroll Reveal Classes ----- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal--left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal--right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible,
.reveal--left.is-visible,
.reveal--right.is-visible {
    opacity: 1;
    transform: translate(0);
}

/* Stagger delays */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ----- Hero Animations ----- */
.hero__bg {
    animation: kenburns 25s ease-in-out infinite alternate;
}

.hero__content > * {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.hero__content > *:nth-child(1) { animation-delay: 0.2s; }
.hero__content > *:nth-child(2) { animation-delay: 0.4s; }
.hero__content > *:nth-child(3) { animation-delay: 0.6s; }
.hero__content > *:nth-child(4) { animation-delay: 0.8s; }

/* ----- Header Animations ----- */
.site-header--scrolled {
    box-shadow: var(--shadow-md);
}

.site-header--scrolled .header-main {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

/* ----- Counter Animation ----- */
.counter {
    opacity: 0;
}

.counter.is-visible {
    animation: countUp 0.6s ease forwards;
}

/* ----- Card Hover Enhancements ----- */
.card {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

/* ----- Nav Underline Animation ----- */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.is-active::after {
    width: 100%;
}

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

    .reveal,
    .reveal--left,
    .reveal--right {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .hero__bg {
        animation: none;
    }

    .hero__content > * {
        opacity: 1;
        animation: none;
    }

    .marquee__inner {
        animation: none;
    }
}