/**
 * Scroll Reveal Animations
 * CSS animations for elements revealed on scroll
 * Author: Portofolio PHP
 * Version: 1.0
 */

/* Base class for all animated elements */
.animate-on-scroll {
    opacity: 0;
    visibility: hidden;
    transition-duration: 0.8s;
    transition-timing-function: cubic-bezier(0.5, 0, 0, 1);
    transition-property: opacity, transform, visibility;
    will-change: opacity, transform, visibility;
}

/* Fade in animation */
.fade-in {
    opacity: 1;
    visibility: visible;
}

/* Fade in and move up animation */
.fade-in-up {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.animate-on-scroll[data-animation="fade-in-up"] {
    transform: translateY(30px);
}

/* Slide up animation */
.slide-up {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.animate-on-scroll[data-animation="slide-up"] {
    transform: translateY(50px);
}

/* Scale in animation */
.scale-in {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}
.animate-on-scroll[data-animation="scale-in"] {
    transform: scale(0.9);
}

/* Slide in from left animation */
.slide-in-left {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}
.animate-on-scroll[data-animation="slide-in-left"] {
    transform: translateX(-50px);
}

/* Slide in from right animation */
.slide-in-right {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}
.animate-on-scroll[data-animation="slide-in-right"] {
    transform: translateX(50px);
}

/* Bounce animation */
.bounce-slow {
    opacity: 1;
    visibility: visible;
    animation: bounce-animation 1s ease forwards;
}

@keyframes bounce-animation {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

/* Staggered animations for groups of elements */
.stagger-animation > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-animation.revealed > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-animation.revealed > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-animation.revealed > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-animation.revealed > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-animation.revealed > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-animation.revealed > *:nth-child(6) { transition-delay: 0.6s; }
.stagger-animation.revealed > *:nth-child(7) { transition-delay: 0.7s; }
.stagger-animation.revealed > *:nth-child(8) { transition-delay: 0.8s; }
.stagger-animation.revealed > *:nth-child(9) { transition-delay: 0.9s; }
.stagger-animation.revealed > *:nth-child(10) { transition-delay: 1s; }

.stagger-animation.revealed > * {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive adjustments */
@media (prefers-reduced-motion: reduce) {
    .animate-on-scroll {
        transition: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
    }
    
    .stagger-animation > * {
        transition: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
}