/* ============================================================================
   ANIMATIONS & TRANSITIONS
   ============================================================================ */

:root {
    /* Focus ring definition for consistent focus states */
    --focus-ring: 0 0 0 2px var(--color-focus-ring, #4d90fe);
}


/* 
 * Optimized animations with hardware acceleration
 * Using transform and opacity for better performance
 */

/* ============================================================================
   FADE ANIMATIONS
   ============================================================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 30px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translate3d(0, -30px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 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);
    }
}

/* ============================================================================
   SLIDE ANIMATIONS
   ============================================================================ */

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(100%);
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* ============================================================================
   SCALE ANIMATIONS
   ============================================================================ */

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

@keyframes scaleOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.8);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes swing {
    20% {
        transform: rotate(15deg);
    }
    40% {
        transform: rotate(-10deg);
    }
    60% {
        transform: rotate(5deg);
    }
    80% {
        transform: rotate(-5deg);
    }
    100% {
        transform: rotate(0deg);
    }
}

/* ============================================================================
   ROTATE ANIMATIONS
   ============================================================================ */

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

@keyframes spinReverse {
    from {
        transform: rotate(360deg);
    }
    to {
        transform: rotate(0deg);
    }
}

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-200deg);
    }
    to {
        opacity: 1;
        transform: rotate(0);
    }
}

@keyframes rotateOut {
    from {
        opacity: 1;
        transform: rotate(0);
    }
    to {
        opacity: 0;
        transform: rotate(200deg);
    }
}

/* ============================================================================
   FLIP ANIMATIONS
   ============================================================================ */

@keyframes flipInX {
    from {
        opacity: 0;
        transform: perspective(400px) rotateX(90deg);
    }
    to {
        opacity: 1;
        transform: perspective(400px) rotateX(0deg);
    }
}

@keyframes flipOutX {
    from {
        opacity: 1;
        transform: perspective(400px) rotateX(0deg);
    }
    to {
        opacity: 0;
        transform: perspective(400px) rotateX(90deg);
    }
}

@keyframes flipInY {
    from {
        opacity: 0;
        transform: perspective(400px) rotateY(90deg);
    }
    to {
        opacity: 1;
        transform: perspective(400px) rotateY(0deg);
    }
}

@keyframes flipOutY {
    from {
        opacity: 1;
        transform: perspective(400px) rotateY(0deg);
    }
    to {
        opacity: 0;
        transform: perspective(400px) rotateY(90deg);
    }
}

/* ============================================================================
   SHAKE & WIGGLE ANIMATIONS
   ============================================================================ */

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

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

@keyframes jello {
    0%, 11.1%, 100% {
        transform: none;
    }
    22.2% {
        transform: skewX(-12.5deg) skewY(-12.5deg);
    }
    33.3% {
        transform: skewX(6.25deg) skewY(6.25deg);
    }
    44.4% {
        transform: skewX(-3.125deg) skewY(-3.125deg);
    }
    55.5% {
        transform: skewX(1.5625deg) skewY(1.5625deg);
    }
    66.6% {
        transform: skewX(-0.78125deg) skewY(-0.78125deg);
    }
    77.7% {
        transform: skewX(0.390625deg) skewY(0.390625deg);
    }
    88.8% {
        transform: skewX(-0.1953125deg) skewY(-0.1953125deg);
    }
}

/* ============================================================================
   HEARTBEAT ANIMATIONS
   ============================================================================ */

@keyframes heartBeat {
    0% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.3);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.3);
    }
    70% {
        transform: scale(1);
    }
}

@keyframes throb {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* ============================================================================
   GLOW ANIMATIONS
   ============================================================================ */

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(var(--color-success-rgb, 33, 128, 141), 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(var(--color-success-rgb, 33, 128, 141), 0.8);
    }
}

@keyframes glowText {
    0%, 100% {
        text-shadow: 0 0 5px rgba(var(--color-success-rgb, 33, 128, 141), 0.3);
    }
    50% {
        text-shadow: 0 0 20px rgba(var(--color-success-rgb, 33, 128, 141), 0.8);
    }
}

/* ============================================================================
   UTILITY ANIMATION CLASSES
   ============================================================================ */

.animate-fadeIn {
    animation: fadeIn var(--duration-normal) var(--ease-standard);
}

.animate-fadeOut {
    animation: fadeOut var(--duration-normal) var(--ease-standard);
}

.animate-fadeInUp {
    animation: fadeInUp 0.5s var(--ease-standard);
}

.animate-fadeInDown {
    animation: fadeInDown 0.5s var(--ease-standard);
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.5s var(--ease-standard);
}

.animate-fadeInRight {
    animation: fadeInRight 0.5s var(--ease-standard);
}

.animate-slideIn {
    animation: slideIn 0.4s var(--ease-standard);
}

.animate-slideOut {
    animation: slideOut 0.4s var(--ease-standard);
}

.animate-slideInUp {
    animation: slideInUp 0.4s var(--ease-standard);
}

.animate-slideInDown {
    animation: slideInDown 0.4s var(--ease-standard);
}

.animate-scaleIn {
    animation: scaleIn var(--duration-normal) var(--ease-standard);
}

.animate-scaleOut {
    animation: scaleOut var(--duration-normal) var(--ease-standard);
}

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

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

.animate-swing {
    animation: swing 1s ease-in-out;
}

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

.animate-rotateIn {
    animation: rotateIn 0.6s var(--ease-standard);
}

.animate-rotateOut {
    animation: rotateOut 0.6s var(--ease-standard);
}

.animate-flipInX {
    animation: flipInX 0.6s var(--ease-standard);
}

.animate-flipOutX {
    animation: flipOutX 0.6s var(--ease-standard);
}

.animate-flipInY {
    animation: flipInY 0.6s var(--ease-standard);
}

.animate-flipOutY {
    animation: flipOutY 0.6s var(--ease-standard);
}

.animate-shake {
    animation: shake 0.5s ease-in-out;
}

.animate-wiggle {
    animation: wiggle 0.7s ease-in-out;
}

.animate-jello {
    animation: jello 0.9s ease-in-out;
}

.animate-heartBeat {
    animation: heartBeat 1.3s ease-in-out infinite;
}

.animate-throb {
    animation: throb 1s ease-in-out infinite;
}

.animate-glow {
    animation: glow 1.5s ease-in-out infinite;
}

.animate-glowText {
    animation: glowText 1.5s ease-in-out infinite;
}

/* ============================================================================
   TRANSITION CLASSES
   ============================================================================ */

/* 
 * Optimized transition classes with will-change for better performance
 * Using transform and opacity for hardware acceleration
 */

.transition-fast {
    transition: all var(--duration-fast) var(--ease-standard);
    will-change: transform, opacity;
}

.transition-normal {
    transition: all var(--duration-normal) var(--ease-standard);
    will-change: transform, opacity;
}

.transition-slow {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, opacity;
}

.transition-slower {
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, opacity;
}

.transition-slowest {
    transition: all 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, opacity;
}

/* Specific transitions */
.transition-colors {
    transition: background-color var(--duration-normal) var(--ease-standard),
                color var(--duration-normal) var(--ease-standard),
                border-color var(--duration-normal) var(--ease-standard);
}

.transition-transform {
    transition: transform var(--duration-normal) var(--ease-standard);
    will-change: transform;
}

.transition-opacity {
    transition: opacity var(--duration-normal) var(--ease-standard);
    will-change: opacity;
}

.transition-shadow {
    transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.transition-all-fast {
    transition: all var(--duration-fast) var(--ease-standard);
    will-change: transform, opacity;
}

.transition-all-normal {
    transition: all var(--duration-normal) var(--ease-standard);
    will-change: transform, opacity;
}

.transition-all-slow {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, opacity;
}

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

.hover-lift {
    transition: transform var(--duration-normal) var(--ease-standard),
                box-shadow var(--duration-normal) var(--ease-standard);
}

.hover-lift:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hover-grow {
    transition: transform var(--duration-normal) var(--ease-standard);
}

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

.hover-rotate {
    transition: transform var(--duration-normal) var(--ease-standard);
}

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

.hover-glow {
    transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(var(--color-success-rgb, 33, 128, 141), 0.5);
}

.hover-fade {
    transition: opacity var(--duration-normal) var(--ease-standard);
}

.hover-fade:hover {
    opacity: 0.7;
}

.hover-darken {
    transition: filter var(--duration-normal) var(--ease-standard);
}

.hover-darken:hover {
    filter: brightness(0.9);
}

.hover-brighten {
    transition: filter var(--duration-normal) var(--ease-standard);
}

.hover-brighten:hover {
    filter: brightness(1.1);
}

.hover-blur {
    transition: filter var(--duration-normal) var(--ease-standard);
}

.hover-blur:hover {
    filter: blur(0px);
}

/* ============================================================================
   FOCUS ANIMATIONS
   ============================================================================ */

.focus-glow:focus {
    outline: none;
    box-shadow: var(--focus-ring);
    transition: box-shadow var(--duration-fast) var(--ease-standard);
}

.focus-grow:focus {
    outline: none;
    transform: scale(1.02);
    transition: transform var(--duration-fast) var(--ease-standard);
}

.focus-lift:focus {
    outline: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    transition: transform var(--duration-fast) var(--ease-standard),
                box-shadow var(--duration-fast) var(--ease-standard);
}

/* ============================================================================
   LOADING SPINNERS
   ============================================================================ */

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(var(--color-primary-rgb, var(--color-teal-500-rgb, 33, 128, 141)), 0.2);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.spinner-lg {
    width: 32px;
    height: 32px;
    border-width: 4px;
}

.spinner-white {
    border-color: rgba(255, 255, 255, 0.2);
    border-top-color: var(--color-white);
}

/* ============================================================================
   TRANSITION 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;
}

/* ============================================================================
   MOTION PREFERENCES (Accessibility)
   ============================================================================ */

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

/* ============================================================================
   RESPONSIVE ANIMATIONS
   ============================================================================ */

/* 
 * Reduced motion media query for accessibility
 * Disables animations for users who prefer reduced motion
 */
@media (max-width: 480px) {
    /* Reduce animation intensity on mobile for performance */
    .animate-fadeInUp,
    .animate-fadeInDown,
    .animate-fadeInLeft,
    .animate-fadeInRight {
        animation-duration: var(--duration-normal);
    }

    .animate-slideIn,
    .animate-slideOut,
    .animate-slideInUp,
    .animate-slideInDown {
        animation-duration: var(--duration-normal);
    }

    /* Simplify hover effects on mobile (touch devices) */
    .hover-lift:hover,
    .hover-grow:hover,
    .hover-rotate:hover {
        transform: none;
    }

    /* Reduce spinner sizes slightly on mobile */
    .spinner {
        width: 18px;
        height: 18px;
    }

    .spinner-lg {
        width: 28px;
        height: 28px;
    }

    /* Ensure focus states remain visible on mobile */
    .focus-glow:focus,
    .focus-grow:focus,
    .focus-lift:focus {
        box-shadow: var(--focus-ring);
    }
}