/* ============================================
   ANIMATIONS
   Scroll animations, keyframes, hover effects
   ============================================ */

/* ------------------------------------------
   1. Scroll Animation Base Classes
   ------------------------------------------ */

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Directional variants */
.animate-fade-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-fade-left.visible {
    opacity: 1;
    transform: translateX(0);
}

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

.animate-fade-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Scale variant */
.animate-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-scale.visible {
    opacity: 1;
    transform: scale(1);
}

/* ------------------------------------------
   2. Stagger Delays
   ------------------------------------------ */

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}

.delay-4 {
    transition-delay: 0.4s;
}

.delay-5 {
    transition-delay: 0.5s;
}

.delay-6 {
    transition-delay: 0.6s;
}

/* ------------------------------------------
   3. Hero Animations
   ------------------------------------------ */

@keyframes fadeUp {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
}

/* ------------------------------------------
   4. Skills Marquee
   ------------------------------------------ */

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

.marquee-track {
    display: flex;
    animation: marquee 30s linear infinite;
    will-change: transform;
}

.marquee-track:hover {
    animation-play-state: paused;
}

/* ------------------------------------------
   5. Scroll Indicator
   ------------------------------------------ */

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

.scroll-indicator {
    animation: scroll-bounce 2s ease-in-out infinite;
}

/* ------------------------------------------
   6. Hover Effects
   ------------------------------------------ */

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
}

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(var(--color-primary-rgb, 99, 102, 241), 0.4);
}