/* ================================================
   MICHELLY - Animations & Keyframes
   ================================================ */

/* Gradient Background Shift */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    25% { background-position: 50% 0%; }
    50% { background-position: 100% 50%; }
    75% { background-position: 50% 100%; }
    100% { background-position: 0% 50%; }
}

/* Heart Pulse */
@keyframes heartPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* Heart Pop (for like button) */
@keyframes heartPop {
    0% { transform: scale(1); }
    30% { transform: scale(1.4); }
    60% { transform: scale(0.9); }
    100% { transform: scale(1); }
}

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

/* Bounce Down (scroll indicator) */
@keyframes bounceDown {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(10px); opacity: 0.5; }
}

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

/* Floating Hearts */
@keyframes floatHeart {
    0% {
        opacity: 0;
        transform: translateY(100vh) rotate(0deg) scale(0.5);
    }
    10% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.15;
    }
    90% {
        opacity: 0.05;
    }
    100% {
        opacity: 0;
        transform: translateY(-20vh) rotate(360deg) scale(1.2);
    }
}

/* Falling Petals */
@keyframes fallPetal {
    0% {
        opacity: 0;
        transform: translateY(-10vh) translateX(0) rotate(0deg);
    }
    10% {
        opacity: 0.4;
    }
    50% {
        transform: translateY(50vh) translateX(80px) rotate(180deg);
        opacity: 0.25;
    }
    100% {
        opacity: 0;
        transform: translateY(110vh) translateX(-40px) rotate(360deg);
    }
}

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

/* Fade In Left */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Fade In Right */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale In */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Shimmer effect */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Sparkle */
@keyframes sparkle {
    0%, 100% {
        opacity: 0;
        transform: scale(0) rotate(0deg);
    }
    50% {
        opacity: 1;
        transform: scale(1) rotate(180deg);
    }
}

/* ========================
   SCROLL ANIMATION CLASSES
   ======================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }

/* Gallery Item Animations */
.gallery-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.gallery-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation for gallery items */
.gallery-item:nth-child(1) { transition-delay: 0.05s; }
.gallery-item:nth-child(2) { transition-delay: 0.1s; }
.gallery-item:nth-child(3) { transition-delay: 0.15s; }
.gallery-item:nth-child(4) { transition-delay: 0.2s; }
.gallery-item:nth-child(5) { transition-delay: 0.25s; }
.gallery-item:nth-child(6) { transition-delay: 0.3s; }
.gallery-item:nth-child(7) { transition-delay: 0.35s; }
.gallery-item:nth-child(8) { transition-delay: 0.4s; }
.gallery-item:nth-child(9) { transition-delay: 0.45s; }

/* Filter transition */
.gallery-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
    position: absolute;
}

/* ========================
   HOVER MICRO-INTERACTIONS
   ======================== */

/* Ripple effect on buttons */
.btn.ripple::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    border-radius: inherit;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 10%, transparent 10%);
    transform: scale(10);
    opacity: 0;
    transition: transform 0.5s, opacity 0.8s;
}

.btn.ripple:active::after {
    transform: scale(0);
    opacity: 0.3;
    transition: 0s;
}

/* Image shimmer loading effect */
.gallery-image.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease infinite;
}

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

    .hero {
        animation: none;
        background-size: 100% 100%;
    }

    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }

    .gallery-item {
        opacity: 1;
        transform: none;
    }

    .floating-hearts,
    .petals-container {
        display: none;
    }
}