/* assets/css/animations.css - Animation Styles */

/* ==================== KEYFRAME ANIMATIONS ==================== */

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

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

/* Fade In Down */
@keyframes fadeInDown { 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(0.9); } to { opacity: 1; transform: scale(1); } }

/* Slide In Up */
@keyframes slideInUp { from { transform: translateY(100%); } to { transform: translateY(0); } }

/* Bounce */
@keyframes bounce { 0%,20%,50%,80%,100% { transform: translateY(0); } 40% { transform: translateY(-10px); } 60% { transform: translateY(-5px); } }

/* Pulse */
@keyframes pulse { 0% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.05); opacity: 0.8; } 100% { transform: scale(1); opacity: 1; } }

/* Shake */
@keyframes shake { 0%,100% { transform: translateX(0); } 10%,30%,50%,70%,90% { transform: translateX(-5px); } 20%,40%,60%,80% { transform: translateX(5px); } }

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

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

/* Glow */
@keyframes glow { 0%,100% { box-shadow: 0 0 5px rgba(0, 120, 255, 0.5); } 50% { box-shadow: 0 0 20px rgba(0, 120, 255, 0.8); } }

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

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

/* ==================== SCROLL REVEAL ANIMATIONS ==================== */
.scroll-reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.scroll-reveal.revealed { opacity: 1; transform: translateY(0); }
.scroll-reveal-left { opacity: 0; transform: translateX(-30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.scroll-reveal-left.revealed { opacity: 1; transform: translateX(0); }
.scroll-reveal-right { opacity: 0; transform: translateX(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.scroll-reveal-right.revealed { opacity: 1; transform: translateX(0); }
.scroll-reveal-scale { opacity: 0; transform: scale(0.9); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.scroll-reveal-scale.revealed { opacity: 1; transform: scale(1); }

/* ==================== LOADING ANIMATIONS ==================== */
.skeleton { background: linear-gradient(90deg, var(--surface-color) 25%, var(--card-color) 50%, var(--surface-color) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; }
.spinner { width: 40px; height: 40px; border: 4px solid var(--border-color); border-top-color: var(--primary-color); border-radius: 50%; animation: rotate 1s linear infinite; }

/* ==================== HOVER ANIMATIONS ==================== */
.hover-lift { transition: transform var(--transition-base), box-shadow var(--transition-base); }
.hover-lift:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }
.hover-grow { transition: transform var(--transition-base); }
.hover-grow:hover { transform: scale(1.05); }
.hover-glow { transition: box-shadow var(--transition-base); }
.hover-glow:hover { box-shadow: 0 0 20px rgba(0, 120, 255, 0.5); }

/* ==================== BUTTON RIPPLE EFFECT ==================== */
.ripple { position: relative; overflow: hidden; }
.ripple::after { content: ''; position: absolute; top: 50%; left: 50%; width: 0; height: 0; border-radius: 50%; background-color: rgba(255,255,255,0.5); transform: translate(-50%, -50%); transition: width 0.6s, height 0.6s; }
.ripple:active::after { width: 300px; height: 300px; }

/* ==================== TEXT ANIMATIONS ==================== */
.typing-effect { overflow: hidden; border-right: 2px solid var(--primary-color); white-space: nowrap; animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite; }
@keyframes typing { from { width: 0; } to { width: 100%; } }
@keyframes blink-caret { from, to { border-color: transparent; } 50% { border-color: var(--primary-color); } }
.gradient-text-animated { background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--primary-color)); background-size: 200% auto; -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; animation: gradientShift 3s ease infinite; }

/* ==================== CARD FLIP ANIMATION ==================== */
.flip-card { perspective: 1000px; }
.flip-card-inner { position: relative; width: 100%; height: 100%; transition: transform 0.6s; transform-style: preserve-3d; }
.flip-card:hover .flip-card-inner { transform: rotateY(180deg); }
.flip-card-front, .flip-card-back { position: absolute; width: 100%; height: 100%; backface-visibility: hidden; }
.flip-card-back { transform: rotateY(180deg); }

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

/* ==================== STAGGER ANIMATIONS ==================== */
.stagger-item { opacity: 0; transform: translateY(20px); animation: fadeInUp 0.6s ease-out forwards; }
.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }
.stagger-item:nth-child(6) { animation-delay: 0.6s; }

/* ==================== PROGRESS BAR ANIMATION ==================== */
.progress-bar { width: 0; height: 4px; background: linear-gradient(90deg, var(--primary-color), var(--accent-color)); transition: width 1s ease-out; }
.progress-bar.animate { width: 100%; }

/* ==================== NOTIFICATION ANIMATIONS ==================== */
.notification-enter { animation: slideInRight 0.3s ease-out; }
.notification-exit { animation: slideOutRight 0.3s ease-in; }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOutRight { from { transform: translateX(0); opacity: 1; } to { transform: translateX(100%); opacity: 0; } }

/* ==================== MODAL ANIMATIONS ==================== */
.modal-backdrop { animation: fadeIn 0.3s ease-out; }
.modal-content { animation: scaleIn 0.3s ease-out; }

/* ==================== TOOLTIP ANIMATIONS ==================== */
.tooltip { opacity: 0; transform: translateY(-10px); transition: opacity 0.2s, transform 0.2s; }
.tooltip.show { opacity: 1; transform: translateY(0); }

/* ==================== COUNTER ANIMATION ==================== */
.counter { transition: all 0.3s ease-out; }

/* ==================== SMOOTH SCROLL ==================== */
html { scroll-behavior: smooth; }

/* ==================== PAGE TRANSITIONS ==================== */
.page-enter { animation: fadeIn 0.5s ease-out; }
.page-exit { animation: fadeOut 0.5s ease-in; }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }

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

/* ==================== PERFORMANCE OPTIMIZATIONS ==================== */
.will-change-transform { will-change: transform; }
.will-change-opacity { will-change: opacity; }
.gpu-accelerated { transform: translateZ(0); backface-visibility: hidden; perspective: 1000px; }

/* Card Float Animation */
@keyframes cardFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(2deg);
    }
}

/* Scroll Wheel Animation */
@keyframes scrollWheel {
    0% {
        top: 8px;
        opacity: 1;
    }
    100% {
        top: 24px;
        opacity: 0;
    }
}

/* Wave Animation */
@keyframes wave {
    0%, 100% {
        transform: translateX(0) translateY(0);
    }
    50% {
        transform: translateX(-25%) translateY(-10px);
    }
}

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

/* Typing Animation */
@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

/* Blink Animation */
@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

/* ==================== SCROLL ANIMATIONS ==================== */

/* Scroll Reveal Classes (additional variants) */
.scroll-reveal-top {
    opacity: 0;
    transform: translateY(-50px);
    transition: all 0.8s ease;
}

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

.scroll-reveal-bottom {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

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

/* Note: base .scroll-reveal, .scroll-reveal-left/right/scale are defined earlier to avoid duplicates */

/* Stagger Animation Delays */
.scroll-reveal:nth-child(1) { transition-delay: 0.1s; }
.scroll-reveal:nth-child(2) { transition-delay: 0.2s; }
.scroll-reveal:nth-child(3) { transition-delay: 0.3s; }
.scroll-reveal:nth-child(4) { transition-delay: 0.4s; }
.scroll-reveal:nth-child(5) { transition-delay: 0.5s; }
.scroll-reveal:nth-child(6) { transition-delay: 0.6s; }

/* ==================== HOVER ANIMATIONS ==================== */

/* Hover Lift/Glow defined earlier to avoid duplicates */

/* Hover Scale */
.hover-scale {
    transition: transform var(--transition-base);
}

.hover-scale:hover {
    transform: scale(1.05);
}

/* Hover Rotate */
.hover-rotate {
    transition: transform var(--transition-base);
}

.hover-rotate:hover {
    transform: rotate(5deg);
}

/* Hover Brightness */
.hover-brightness {
    transition: filter var(--transition-base);
}

.hover-brightness:hover {
    filter: brightness(1.2);
}

/* ==================== LOADING ANIMATIONS ==================== */

/* Skeleton and Spinner defined earlier to avoid duplicates */

/* Dots Loading */
.dots-loading {
    display: flex;
    gap: 0.5rem;
}

.dots-loading span {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: pulse 1.4s infinite ease-in-out;
}

.dots-loading span:nth-child(1) { animation-delay: -0.32s; }
.dots-loading span:nth-child(2) { animation-delay: -0.16s; }
.dots-loading span:nth-child(3) { animation-delay: 0s; }

/* ==================== PARTICLE EFFECTS ==================== */

.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.particle-1 {
    width: 4px;
    height: 4px;
    background: rgba(99, 102, 241, 0.6);
    animation: float 6s infinite ease-in-out;
}

.particle-2 {
    width: 6px;
    height: 6px;
    background: rgba(236, 72, 153, 0.6);
    animation: float 8s infinite ease-in-out;
}

.particle-3 {
    width: 8px;
    height: 8px;
    background: rgba(16, 185, 129, 0.6);
    animation: float 10s infinite ease-in-out;
}

/* ==================== TEXT ANIMATIONS ==================== */

/* Gradient Text Animation */
.animated-gradient-text {
    background: linear-gradient(
        90deg,
        #667eea,
        #764ba2,
        #f093fb,
        #667eea
    );
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

/* Typewriter Effect */
.typewriter {
    overflow: hidden;
    border-right: 2px solid var(--primary-color);
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink 0.75s step-end infinite;
}

/* ==================== TRANSITION UTILITIES ==================== */

.transition-fast {
    transition: all var(--transition-fast);
}

.transition-base {
    transition: all var(--transition-base);
}

.transition-slow {
    transition: all var(--transition-slow);
}

.transition-colors {
    transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.transition-transform {
    transition: transform var(--transition-base);
}

.transition-opacity {
    transition: opacity var(--transition-base);
}

/* ==================== ENTRANCE ANIMATIONS ==================== */

.animate-on-load {
    animation-duration: 1s;
    animation-fill-mode: both;
}

.fade-in-up {
    animation-name: slideInBottom;
}

.fade-in-down {
    animation-name: slideInTop;
}

.fade-in-left {
    animation-name: slideInLeft;
}

.fade-in-right {
    animation-name: slideInRight;
}

.fade-in {
    animation-name: fadeIn;
}

.scale-in {
    animation-name: scaleIn;
}

/* Animation Delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.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; }

/* ==================== INTERACTIVE ANIMATIONS ==================== */

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

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

/* Card Tilt Effect */
.card-tilt {
    transition: transform var(--transition-base);
    transform-style: preserve-3d;
}

.card-tilt:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(2deg);
}

/* ==================== BACKGROUND ANIMATIONS ==================== */

/* Animated Gradient Background */
.animated-gradient-bg {
    background: linear-gradient(
        -45deg,
        #667eea,
        #764ba2,
        #f093fb,
        #4facfe
    );
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

/* Floating Shapes */
.floating-shape {
    position: absolute;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.floating-shape:nth-child(1) { animation-delay: 0s; }
.floating-shape:nth-child(2) { animation-delay: 2s; }
.floating-shape:nth-child(3) { animation-delay: 4s; }
.floating-shape:nth-child(4) { animation-delay: 6s; }
.floating-shape:nth-child(5) { animation-delay: 8s; }

/* ==================== SCROLL PROGRESS INDICATOR ==================== */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--primary-gradient);
    z-index: var(--z-fixed);
    transition: width 0.1s ease;
}

/* ==================== PAGE TRANSITION ==================== */

.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

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

/* ==================== UTILITY ANIMATIONS ==================== */

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-bounce {
    animation: bounce 1s infinite;
}

.animate-spin {
    animation: rotate 1s linear infinite;
}

.animate-ping {
    animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}