/* Animation and Transition Effects for Abiotic Factor Theme */

/* Global Animation Settings */
:root {
    --animation-duration-fast: 0.2s;
    --animation-duration-base: 0.4s;
    --animation-duration-slow: 0.6s;
    --animation-easing-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --animation-easing-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --animation-easing-elastic: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Keyframe Animations */

/* Fade In Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes fadeInDown {
    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);
    }
}

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

@keyframes scaleUp {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.05);
    }
}

/* Glow Animation */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--color-primary), 0 0 10px var(--color-primary);
    }
    50% {
        box-shadow: 0 0 10px var(--color-primary), 0 0 20px var(--color-primary), 0 0 30px var(--color-primary);
    }
}

@keyframes textGlow {
    0%, 100% {
        text-shadow: 0 0 5px rgba(0, 255, 136, 0.5);
    }
    50% {
        text-shadow: 0 0 10px rgba(0, 255, 136, 0.8), 0 0 20px rgba(0, 255, 136, 0.6);
    }
}

/* Pulse Animation */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.02);
        opacity: 0.9;
    }
}

/* Grid Animation - Removed for better readability */

/* Slide Animations */
@keyframes slideInFromTop {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInFromBottom {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Bounce Animation */
@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* Rotate Animation */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

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

/* Border glow animation */
@keyframes borderGlow {
    0%, 100% {
        border-color: var(--color-border-dark);
        box-shadow: none;
    }
    50% {
        border-color: var(--color-primary);
        box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
    }
}

/* Page Load Animations */
.page-loaded .site-title {
    animation: textGlow 2s ease-in-out infinite;
}

.page-loaded .intro-text h1 {
    animation: fadeInUp var(--animation-duration-slow) var(--animation-easing-smooth) 0.2s both;
}

.page-loaded .intro-text p {
    animation: fadeInUp var(--animation-duration-slow) var(--animation-easing-smooth) 0.4s both;
}

.page-loaded .main-logo {
    animation: fadeInDown var(--animation-duration-slow) var(--animation-easing-smooth) 0.3s both,
               float 3s ease-in-out infinite 1s;
}

.page-loaded .video-container {
    animation: scaleIn var(--animation-duration-base) var(--animation-easing-bounce) 0.6s both;
}

/* Header Animation */
.fixed-header {
    animation: slideInFromTop var(--animation-duration-base) var(--animation-easing-smooth);
}

.fixed-header.scrolled {
    background: rgba(10, 15, 10, 0.98);
    backdrop-filter: blur(15px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5), 0 0 10px rgba(0, 255, 136, 0.1);
}

/* Scroll-triggered Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--animation-duration-base) var(--animation-easing-smooth);
}

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

/* Process Cards Animation */
.process-step {
    transition: all var(--animation-duration-base) var(--animation-easing-smooth);
    position: relative;
    overflow: hidden;
}

.process-step::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary), var(--color-primary));
    z-index: -1;
    opacity: 0;
    border-radius: var(--radius-lg);
    transition: opacity var(--animation-duration-base);
}

.process-step:hover::before {
    opacity: 0.3;
    animation: borderGlow 2s ease-in-out infinite;
}

.process-step:nth-child(odd) {
    animation-delay: 0.1s;
}

.process-step:nth-child(even) {
    animation-delay: 0.2s;
}

.page-loaded .process-step {
    animation: fadeInUp var(--animation-duration-base) var(--animation-easing-smooth) both;
}

/* Process Arrow Animation */
.process-arrow {
    transition: all var(--animation-duration-base) var(--animation-easing-smooth);
    position: relative;
}

.process-arrow::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.2) 0%, transparent 70%);
    z-index: -1;
    opacity: 0;
    transition: opacity var(--animation-duration-base);
}

.process-arrow:hover::after {
    opacity: 1;
    animation: pulse 1.5s ease-in-out infinite;
}

/* Map Cards Animation */
.map-card {
    transition: all var(--animation-duration-base) var(--animation-easing-smooth);
    position: relative;
}

.page-loaded .map-card {
    animation: scaleIn var(--animation-duration-base) var(--animation-easing-smooth) both;
}

.map-card:nth-child(1) { animation-delay: 0.1s; }
.map-card:nth-child(2) { animation-delay: 0.2s; }
.map-card:nth-child(3) { animation-delay: 0.3s; }

.map-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    opacity: 0;
    transition: opacity var(--animation-duration-base);
    pointer-events: none;
}

.map-card:hover::before {
    opacity: 1;
    animation: shimmer 1.5s ease-in-out infinite;
}

/* Review Cards Animation */
.review-card {
    transition: all var(--animation-duration-base) var(--animation-easing-smooth);
}

.page-loaded .review-card {
    animation: fadeInUp var(--animation-duration-base) var(--animation-easing-smooth) both;
}

.review-card:nth-child(1) { animation-delay: 0.1s; }
.review-card:nth-child(2) { animation-delay: 0.2s; }
.review-card:nth-child(3) { animation-delay: 0.3s; }

/* Play Button Animation */
.play-button {
    transition: all var(--animation-duration-base) var(--animation-easing-bounce);
    position: relative;
}

.play-button::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--animation-duration-base);
}

.play-button:hover::before {
    opacity: 1;
    transform: scale(1);
    animation: pulse 2s ease-in-out infinite;
}

.play-button:hover {
    animation: float 2s ease-in-out infinite;
}

/* Version Badge Animation */
.version-badge {
    animation: glow 2s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.version-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left var(--animation-duration-slow);
}

.version-badge:hover::before {
    left: 100%;
}

/* Language Button Animation */
.language-btn,
.footer-lang-btn {
    transition: all var(--animation-duration-fast) var(--animation-easing-smooth);
    position: relative;
    overflow: hidden;
}

.language-btn::before,
.footer-lang-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.2), transparent);
    transition: left var(--animation-duration-base);
}

.language-btn:hover::before,
.footer-lang-btn:hover::before {
    left: 100%;
}

.language-btn:hover,
.footer-lang-btn:hover {
    transform: translateY(-2px);
}

/* Modal Animations */
.language-modal,
.map-modal {
    animation: fadeIn var(--animation-duration-base) var(--animation-easing-smooth);
}

.language-modal-content,
.map-modal-content {
    animation: scaleIn var(--animation-duration-base) var(--animation-easing-bounce);
}

/* Loading Animation */
.loading-spinner {
    animation: spin 1s linear infinite;
}

.loading-indicator p {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Grid Background Animation - Removed for better readability */

/* Navigation Link Hover */
.main-nav a {
    position: relative;
    overflow: hidden;
}

.main-nav a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transition: left var(--animation-duration-base);
}

.main-nav a:hover::before {
    left: 0;
}

.footer-links a {
    position: relative;
    transition: color var(--animation-duration-fast);
}

.footer-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: var(--color-primary);
    transition: width var(--animation-duration-fast);
}

.footer-links a:hover::after {
    width: 100%;
}

/* Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    z-index: calc(var(--z-header) + 1);
    transition: width var(--animation-duration-fast) linear;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

/* Section Reveal Animation */
.section-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all var(--animation-duration-slow) var(--animation-easing-smooth);
}

.section-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered Animation for Grids */
.stagger-animation > * {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--animation-duration-base) var(--animation-easing-smooth);
}

.stagger-animation.animate > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-animation.animate > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-animation.animate > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-animation.animate > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-animation.animate > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-animation.animate > *:nth-child(6) { transition-delay: 0.6s; }

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

/* Walkthrough Items Animation */
.walkthrough-item {
    transition: all var(--animation-duration-base) var(--animation-easing-smooth);
    position: relative;
}

.walkthrough-item::before {
    content: '';
    position: absolute;
    left: -2px;
    top: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--color-primary), transparent, var(--color-primary));
    z-index: -1;
    opacity: 0;
    border-radius: var(--radius-lg);
    transition: opacity var(--animation-duration-base);
}

.walkthrough-item:hover::before {
    opacity: 0.2;
}

/* Focus Animations */
.language-toggle:focus,
.language-btn:focus,
.footer-lang-btn:focus,
.main-nav a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    animation: glow 2s ease-in-out infinite;
}

/* Error and Success Animations */
.error-shake {
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.success-bounce {
    animation: bounceIn 0.6s ease-out;
}

/* Performance Optimizations */
.gpu-accelerated {
    transform: translateZ(0);
    will-change: transform;
}

/* Animation Classes for JavaScript Control */
.fade-in { animation: fadeIn var(--animation-duration-base) var(--animation-easing-smooth); }
.fade-in-up { animation: fadeInUp var(--animation-duration-base) var(--animation-easing-smooth); }
.fade-in-down { animation: fadeInDown var(--animation-duration-base) var(--animation-easing-smooth); }
.fade-in-left { animation: fadeInLeft var(--animation-duration-base) var(--animation-easing-smooth); }
.fade-in-right { animation: fadeInRight var(--animation-duration-base) var(--animation-easing-smooth); }
.scale-in { animation: scaleIn var(--animation-duration-base) var(--animation-easing-smooth); }
.bounce-in { animation: bounceIn var(--animation-duration-base) var(--animation-easing-bounce); }

/* Special Abiotic Factor theme animations */
.sci-fi-glow {
    position: relative;
}

.sci-fi-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 255, 136, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 255, 136, 0.1) 0%, transparent 50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--animation-duration-slow);
}

.sci-fi-glow:hover::before {
    opacity: 1;
    animation: pulse 2s ease-in-out infinite;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-progress,
    .loading-spinner,
    .version-badge,
    .site-title,
    .main-logo {
        animation: none !important;
    }
    
    body {
        animation: none !important;
    }
}