/**
 * Advanced Animations Stylesheet
 * Complex keyframe animations and animation utilities
 */

/* ============================================
   Keyframe Animations
   ============================================ */

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

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

/* Slide In Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Glow Pulse */
@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
    }
    50% {
        box-shadow: 0 0 30px rgba(16, 185, 129, 0.8), 0 0 50px rgba(16, 185, 129, 0.5);
    }
}

/* Letter Pulse (for preloader) */
@keyframes letterPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* Blink (for typing cursor) */
@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

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

/* Shimmer Effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* Float Animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

/* Confetti Fall */
@keyframes confettiFall {
    0% {
        transform: translateY(-100vh) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Progress Fill */
@keyframes progressFill {
    from {
        width: 0%;
    }
}

/* Counter Number */
@keyframes counterUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Ripple Effect */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* ============================================
   Animation Utility Classes
   ============================================ */

/* Fade In Animations */
.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-slide-in-left {
    animation: slideInLeft 0.6s ease forwards;
}

.animate-slide-in-right {
    animation: slideInRight 0.6s ease forwards;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease forwards;
}

/* Scroll Reveal Classes */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger Animation Delays */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }

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

.hover-lift:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.6);
}

/* 3D Tilt Effect */
.tilt-3d {
    transition: transform 0.3s ease;
    transform-style: preserve-3d;
}

/* Pulse Animation */
.pulse {
    animation: glowPulse 2s ease-in-out infinite;
}

/* Float Animation */
.float {
    animation: float 3s ease-in-out infinite;
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(16, 185, 129, 0.2);
    border-top-color: var(--accent-emerald);
    border-radius: 50%;
    animation: rotate 1s linear infinite;
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-secondary) 0%,
        var(--bg-tertiary) 50%,
        var(--bg-secondary) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
}

/* Confetti Container */
.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10000;
}

.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent-emerald);
    animation: confettiFall 3s linear forwards;
}

.confetti:nth-child(2n) {
    background: var(--accent-cyan);
    animation-duration: 2.5s;
}

.confetti:nth-child(3n) {
    background: var(--accent-blue);
    animation-duration: 3.5s;
}

.confetti:nth-child(4n) {
    background: var(--accent-gold);
    animation-duration: 2s;
}

/* Ripple Effect */
.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple-effect:active::after {
    width: 300px;
    height: 300px;
}

/* Parallax Elements */
.parallax-slow {
    transition: transform 0.3s ease-out;
}

.parallax-medium {
    transition: transform 0.2s ease-out;
}

.parallax-fast {
    transition: transform 0.1s ease-out;
}

/* Gradient Text Animation */
.gradient-text-animated {
    background: linear-gradient(
        90deg,
        var(--accent-emerald),
        var(--accent-cyan),
        var(--accent-blue),
        var(--accent-emerald)
    );
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

/* Progress Bar Animation */
.progress-animated {
    animation: progressFill 1s ease forwards;
}

/* Counter Animation */
.counter-animated {
    animation: counterUp 0.6s ease forwards;
}

/* ============================================
   Page Transition Effects
   ============================================ */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.page-transition.active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Reduced Motion Override
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .animate-fade-in,
    .animate-fade-in-up,
    .animate-slide-in-left,
    .animate-slide-in-right,
    .animate-scale-in,
    .reveal-on-scroll,
    .pulse,
    .float,
    .spinner,
    .skeleton,
    .confetti,
    .gradient-text-animated,
    .progress-animated,
    .counter-animated {
        animation: none !important;
        transition: none !important;
    }
    
    .reveal-on-scroll {
        opacity: 1;
        transform: none;
    }
}