/* 
 * Animations Stylesheet
 * Modern Portfolio Landing Page
 * Author: MJDEV
 * Version: 1.0
 */

/* ===== ANIMATION KEYFRAMES ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideLeft {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideRight {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes rotate {
    from {
        opacity: 0;
        transform: rotate(-10deg);
    }
    to {
        opacity: 1;
        transform: rotate(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(247, 37, 133, 0.7);
    }
    70% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(247, 37, 133, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(247, 37, 133, 0);
    }
}

@keyframes neonGlow {
    0% {
        opacity: 0.7;
        transform: scale(1);
    }
    50% {
        opacity: 0.9;
        transform: scale(1.02);
    }
    100% {
        opacity: 0.7;
        transform: scale(1);
    }
}

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

/* ===== ANIMATION CLASSES ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    will-change: opacity, transform;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: var(--reveal-delay, 0s);
}

.fade-in {
    opacity: 0;
}

.fade-in.animate {
    opacity: 1;
    transform: translateY(0);
}

.slide-up {
    opacity: 0;
    transform: translateY(50px);
}

.slide-up.animate {
    animation: slideUp 0.8s ease forwards;
}

.slide-down {
    opacity: 0;
    transform: translateY(-50px);
}

.slide-down.animate {
    animation: slideDown 0.8s ease forwards;
}

.slide-left {
    opacity: 0;
    transform: translateX(50px);
}

.slide-left.animate {
    animation: slideLeft 0.8s ease forwards;
}

.slide-right {
    opacity: 0;
    transform: translateX(-50px);
}

.slide-right.animate {
    animation: slideRight 0.8s ease forwards;
}

.scale {
    opacity: 0;
    transform: scale(0.8);
}

.scale.animate {
    animation: scale 0.8s ease forwards;
}

.rotate {
    opacity: 0;
    transform: rotate(-10deg);
}

.rotate.animate {
    animation: rotate 0.8s ease forwards;
}

/* ===== STAGGERED ANIMATIONS ===== */
.staggered > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.staggered.animate > * {
    opacity: 1;
    transform: translateY(0);
}

.staggered.animate > *:nth-child(n) {
    transition-delay: calc(var(--stagger-count, 1) * 0.1s * var(--stagger-index, 0));
}

/* Generate stagger indices for up to 20 children */
.staggered > *:nth-child(1) { --stagger-index: 1; }
.staggered > *:nth-child(2) { --stagger-index: 2; }
.staggered > *:nth-child(3) { --stagger-index: 3; }
.staggered > *:nth-child(4) { --stagger-index: 4; }
.staggered > *:nth-child(5) { --stagger-index: 5; }
.staggered > *:nth-child(6) { --stagger-index: 6; }
.staggered > *:nth-child(7) { --stagger-index: 7; }
.staggered > *:nth-child(8) { --stagger-index: 8; }
.staggered > *:nth-child(9) { --stagger-index: 9; }
.staggered > *:nth-child(10) { --stagger-index: 10; }
.staggered > *:nth-child(11) { --stagger-index: 11; }
.staggered > *:nth-child(12) { --stagger-index: 12; }
.staggered > *:nth-child(13) { --stagger-index: 13; }
.staggered > *:nth-child(14) { --stagger-index: 14; }
.staggered > *:nth-child(15) { --stagger-index: 15; }
.staggered > *:nth-child(16) { --stagger-index: 16; }
.staggered > *:nth-child(17) { --stagger-index: 17; }
.staggered > *:nth-child(18) { --stagger-index: 18; }
.staggered > *:nth-child(19) { --stagger-index: 19; }
.staggered > *:nth-child(20) { --stagger-index: 20; }

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}

.delay-600 {
    animation-delay: 0.6s;
}

.delay-700 {
    animation-delay: 0.7s;
}

.delay-800 {
    animation-delay: 0.8s;
}

.delay-900 {
    animation-delay: 0.9s;
}

.delay-1000 {
    animation-delay: 1s;
}

/* ===== CONTINUOUS ANIMATIONS ===== */
.pulse {
    animation: pulse 2s infinite;
}

.neon-glow {
    animation: neonGlow 2s infinite;
    color: var(--color-primary);
    filter: drop-shadow(0 0 5px rgba(247, 37, 133, 0.7))
            drop-shadow(0 0 10px rgba(247, 37, 133, 0.5))
            drop-shadow(0 0 15px rgba(247, 37, 133, 0.3));
}

.float {
    animation: float 3s ease-in-out infinite;
}

/* ===== PARALLAX EFFECTS ===== */
.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.parallax-element {
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}