/* ============================================
   ANIMATIONS.CSS
   All Animations and Transitions
   ============================================ */

/* ============================================
   Base Animation Properties
   ============================================ */

/* Animation Timing Functions */
:root {
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-elastic: cubic-bezier(0.68, -0.6, 0.32, 1.6);
}

/* ============================================
   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);
    }
}

/* Scale In Up */
@keyframes scaleInUp {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Slide In Left */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Slide In Up */
@keyframes slideInUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

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

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

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

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

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

/* Glow Pulse */
@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 5px var(--accent-primary),
                    0 0 10px var(--accent-primary),
                    0 0 15px var(--accent-primary);
    }
    50% {
        box-shadow: 0 0 10px var(--accent-primary),
                    0 0 20px var(--accent-primary),
                    0 0 30px var(--accent-primary);
    }
}

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

/* Counter Animation */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Fade Animations */
.animate-fade-in {
    animation: fadeIn 0.6s var(--ease-out) forwards;
}

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

.animate-fade-in-down {
    animation: fadeInDown 0.6s var(--ease-out) forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.6s var(--ease-out) forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.6s var(--ease-out) forwards;
}

/* Scale Animations */
.animate-scale-in {
    animation: scaleIn 0.5s var(--ease-out) forwards;
}

.animate-scale-in-up {
    animation: scaleInUp 0.5s var(--ease-out) forwards;
}

/* Slide Animations */
.animate-slide-in-right {
    animation: slideInRight 0.5s var(--ease-out) forwards;
}

.animate-slide-in-left {
    animation: slideInLeft 0.5s var(--ease-out) forwards;
}

.animate-slide-in-up {
    animation: slideInUp 0.5s var(--ease-out) forwards;
}

.animate-slide-in-down {
    animation: slideInDown 0.5s var(--ease-out) forwards;
}

/* Continuous Animations */
.animate-bounce {
    animation: bounce 2s infinite;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

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

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

.animate-glow {
    animation: glowPulse 2s ease-in-out infinite;
}

/* ============================================
   Scroll Animation Classes
   ============================================ */

/* Hidden state for scroll animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

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

/* Scroll Animation Variants */
.scroll-animate-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.scroll-animate-left.animated {
    opacity: 1;
    transform: translateX(0);
}

.scroll-animate-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.scroll-animate-right.animated {
    opacity: 1;
    transform: translateX(0);
}

.scroll-animate-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.scroll-animate-scale.animated {
    opacity: 1;
    transform: scale(1);
}

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

/* ============================================
   Hover Animations
   ============================================ */

/* Lift Effect */
.hover-lift {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px var(--shadow-color);
}

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

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

/* Glow Effect */
.hover-glow {
    transition: box-shadow var(--transition-normal);
}

.hover-glow:hover {
    box-shadow: 0 0 30px var(--shadow-glow);
}

/* Border Glow Effect */
.hover-border-glow {
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-border-glow:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px var(--shadow-accent);
}

/* ============================================
   Loading Animations
   ============================================ */

/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 24px;
    height: 24px;
    border-width: 2px;
}

.spinner-lg {
    width: 56px;
    height: 56px;
    border-width: 4px;
}

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

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
}

.skeleton-circle {
    border-radius: 50%;
}

/* ============================================
   Page Transition
   ============================================ */

/* Page Enter */
.page-enter {
    opacity: 0;
}

.page-enter-active {
    opacity: 1;
    transition: opacity 0.3s var(--ease-out);
}

/* Page Exit */
.page-exit {
    opacity: 1;
}

.page-exit-active {
    opacity: 0;
    transition: opacity 0.3s var(--ease-in);
}

/* ============================================
   Counter Animation
   ============================================ */

.counter-animate {
    display: inline-block;
    animation: countUp 0.5s var(--ease-out) forwards;
}

/* ============================================
   Reduce Motion for Accessibility
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-animate,
    .scroll-animate-left,
    .scroll-animate-right,
    .scroll-animate-scale {
        opacity: 1;
        transform: none;
    }
}