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

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

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

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

.slide-in-up {
    animation: slideInUp 0.5s ease forwards;
}

/* Slide In Down */
@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-down {
    animation: slideInDown 0.5s ease forwards;
}

/* Slide In Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.5s ease forwards;
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.5s ease forwards;
}

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

.bounce {
    animation: bounce 1s;
}

.bounce-infinite {
    animation: bounce 2s infinite;
}

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

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

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

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

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

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

.rotate {
    animation: rotate 2s linear infinite;
}

.rotate-once {
    animation: rotate 0.5s linear;
}

/* Spin */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

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

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

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.hover-grow {
    transition: transform 0.3s ease;
}

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

.hover-rotate {
    transition: transform 0.3s ease;
}

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

/* Staggered Animation */
.stagger-item {
    opacity: 0;
    animation: slideInUp 0.5s ease 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; }
.stagger-item:nth-child(7) { animation-delay: 0.7s; }
.stagger-item:nth-child(8) { animation-delay: 0.8s; }

/* Loading Animation */
@keyframes loading {
    0% {
        width: 0%;
    }
    100% {
        width: 100%;
    }
}

.loading-bar {
    height: 3px;
    background: linear-gradient(90deg, #4361ee, #3a0ca3, #7209b7);
    border-radius: 3px;
    animation: loading 2s ease-in-out infinite;
}

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

@keyframes blink {
    0%, 100% {
        border-color: transparent;
    }
    50% {
        border-color: #4361ee;
    }
}

.typing-effect {
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    border-right: 3px solid #4361ee;
    width: 0;
    animation: typing 3.5s steps(40, end) forwards, blink 0.75s step-end infinite;
}

.typing-effect.keep-cursor::after {
    content: '|';
    animation: blink 1s infinite;
}

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

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

.float-slow {
    animation: float 5s ease-in-out infinite;
}

.float-fast {
    animation: float 2s ease-in-out infinite;
}

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

.animated-gradient {
    background: linear-gradient(-45deg, #4361ee, #3a0ca3, #7209b7, #f72585);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
}

.animated-gradient-slow {
    background: linear-gradient(-45deg, #4361ee, #3a0ca3, #7209b7, #f72585);
    background-size: 400% 400%;
    animation: gradientBG 30s ease infinite;
}

/* Card Flip */
.flip-card {
    perspective: 1000px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s;
    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;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.flip-card-front {
    background-color: white;
    color: #212529;
}

.flip-card-back {
    background: linear-gradient(135deg, #4361ee, #7209b7);
    color: white;
    transform: rotateY(180deg);
}

/* Progress Bar Animation */
@keyframes progress {
    from {
        width: 0;
    }
}

.progress-bar {
    height: 8px;
    background: linear-gradient(90deg, #4361ee, #7209b7);
    border-radius: 4px;
    animation: progress 1.5s ease-out forwards;
}

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

.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.ripple:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

.ripple-effect {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

/* Text Reveal */
@keyframes textReveal {
    from {
        clip-path: inset(0 100% 0 0);
    }
    to {
        clip-path: inset(0 0 0 0);
    }
}

.text-reveal {
    animation: textReveal 1.5s ease forwards;
}

/* Page Transition */
@keyframes pageTransitionIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-transition-in {
    animation: pageTransitionIn 0.6s ease forwards;
}

@keyframes pageTransitionOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

.page-transition-out {
    animation: pageTransitionOut 0.6s ease forwards;
}

/* Attention Seeker */
@keyframes attentionSeeker {
    0% {
        transform: scale(1);
    }
    10%, 20% {
        transform: scale(0.9) rotate(-3deg);
    }
    30%, 50%, 70%, 90% {
        transform: scale(1.1) rotate(3deg);
    }
    40%, 60%, 80% {
        transform: scale(1.1) rotate(-3deg);
    }
    100% {
        transform: scale(1) rotate(0);
    }
}

.attention-seeker {
    animation: attentionSeeker 2s ease;
}

.attention-seeker-infinite {
    animation: attentionSeeker 2s infinite;
}

/* Glowing Border */
@keyframes glowingBorder {
    0%, 100% {
        border-color: #4361ee;
        box-shadow: 0 0 5px rgba(67, 97, 238, 0.5);
    }
    50% {
        border-color: #7209b7;
        box-shadow: 0 0 20px rgba(114, 9, 183, 0.7);
    }
}

.glowing-border {
    animation: glowingBorder 2s infinite;
}

.glowing-border-slow {
    animation: glowingBorder 4s infinite;
}

/* Parallax Effect */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Hover Underline */
.hover-underline {
    position: relative;
    display: inline-block;
}

.hover-underline::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #4361ee;
    transition: width 0.3s ease;
}

.hover-underline:hover::after {
    width: 100%;
}

/* Tooltip Animation */
@keyframes tooltipFade {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.tooltip {
    animation: tooltipFade 0.2s ease forwards;
}

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 40px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

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

/* Fade In Down */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translate3d(0, -40px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

.fade-in-down {
    animation: fadeInDown 0.6s ease forwards;
}

/* Fade In Left */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translate3d(-40px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease forwards;
}

/* Fade In Right */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translate3d(40px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

.fade-in-right {
    animation: fadeInRight 0.6s ease forwards;
}

/* Zoom In */
@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale3d(0.3, 0.3, 0.3);
    }
    to {
        opacity: 1;
        transform: scale3d(1, 1, 1);
    }
}

.zoom-in {
    animation: zoomIn 0.5s ease forwards;
}

/* Zoom Out */
@keyframes zoomOut {
    from {
        opacity: 1;
        transform: scale3d(1, 1, 1);
    }
    to {
        opacity: 0;
        transform: scale3d(0.3, 0.3, 0.3);
    }
}

.zoom-out {
    animation: zoomOut 0.5s ease forwards;
}

/* Bounce In */
@keyframes bounceIn {
    from, 20%, 40%, 60%, 80%, to {
        animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
    }
    0% {
        opacity: 0;
        transform: scale3d(0.3, 0.3, 0.3);
    }
    20% {
        transform: scale3d(1.1, 1.1, 1.1);
    }
    40% {
        transform: scale3d(0.9, 0.9, 0.9);
    }
    60% {
        opacity: 1;
        transform: scale3d(1.03, 1.03, 1.03);
    }
    80% {
        transform: scale3d(0.97, 0.97, 0.97);
    }
    to {
        opacity: 1;
        transform: scale3d(1, 1, 1);
    }
}

.bounce-in {
    animation: bounceIn 0.75s;
}

/* Flash */
@keyframes flash {
    from, 50%, to {
        opacity: 1;
    }
    25%, 75% {
        opacity: 0.5;
    }
}

.flash {
    animation: flash 1s;
}

/* Rubber Band */
@keyframes rubberBand {
    from {
        transform: scale3d(1, 1, 1);
    }
    30% {
        transform: scale3d(1.25, 0.75, 1);
    }
    40% {
        transform: scale3d(0.75, 1.25, 1);
    }
    50% {
        transform: scale3d(1.15, 0.85, 1);
    }
    65% {
        transform: scale3d(0.95, 1.05, 1);
    }
    75% {
        transform: scale3d(1.05, 0.95, 1);
    }
    to {
        transform: scale3d(1, 1, 1);
    }
}

.rubber-band {
    animation: rubberBand 1s;
}

/* Swing */
@keyframes swing {
    20% {
        transform: rotate3d(0, 0, 1, 15deg);
    }
    40% {
        transform: rotate3d(0, 0, 1, -10deg);
    }
    60% {
        transform: rotate3d(0, 0, 1, 5deg);
    }
    80% {
        transform: rotate3d(0, 0, 1, -5deg);
    }
    to {
        transform: rotate3d(0, 0, 1, 0deg);
    }
}

.swing {
    transform-origin: top center;
    animation: swing 1s;
}

/* Tada */
@keyframes tada {
    from {
        transform: scale3d(1, 1, 1);
    }
    10%, 20% {
        transform: scale3d(0.9, 0.9, 0.9) rotate3d(0, 0, 1, -3deg);
    }
    30%, 50%, 70%, 90% {
        transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
    }
    40%, 60%, 80% {
        transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
    }
    to {
        transform: scale3d(1, 1, 1);
    }
}

.tada {
    animation: tada 1s;
}

/* Wobble */
@keyframes wobble {
    from {
        transform: translate3d(0, 0, 0);
    }
    15% {
        transform: translate3d(-25%, 0, 0) rotate3d(0, 0, 1, -5deg);
    }
    30% {
        transform: translate3d(20%, 0, 0) rotate3d(0, 0, 1, 3deg);
    }
    45% {
        transform: translate3d(-15%, 0, 0) rotate3d(0, 0, 1, -3deg);
    }
    60% {
        transform: translate3d(10%, 0, 0) rotate3d(0, 0, 1, 2deg);
    }
    75% {
        transform: translate3d(-5%, 0, 0) rotate3d(0, 0, 1, -1deg);
    }
    to {
        transform: translate3d(0, 0, 0);
    }
}

.wobble {
    animation: wobble 1s;
}

/* Jello */
@keyframes jello {
    from, 11.1%, to {
        transform: translate3d(0, 0, 0);
    }
    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);
    }
}

.jello {
    animation: jello 1s;
    transform-origin: center;
}

/* Heartbeat */
@keyframes heartbeat {
    0% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.3);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.3);
    }
    70% {
        transform: scale(1);
    }
}

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

/* Loading Spinner */
@keyframes loading-spinner {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loading-spinner {
    animation: loading-spinner 1s linear infinite;
}

/* Wave Animation */
@keyframes wave {
    0%, 100% {
        transform: translateY(0);
    }
    25% {
        transform: translateY(-10px);
    }
    75% {
        transform: translateY(5px);
    }
}

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

/* Neon Glow */
@keyframes neon-glow {
    from {
        text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #4361ee, 0 0 20px #4361ee;
    }
    to {
        text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #4361ee, 0 0 40px #4361ee;
    }
}

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

/* Color Change */
@keyframes color-change {
    0% {
        color: #4361ee;
    }
    25% {
        color: #3a0ca3;
    }
    50% {
        color: #7209b7;
    }
    75% {
        color: #f72585;
    }
    100% {
        color: #4361ee;
    }
}

.color-change {
    animation: color-change 5s infinite;
}

/* Animation Delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }
.delay-7 { animation-delay: 0.7s; }
.delay-8 { animation-delay: 0.8s; }
.delay-9 { animation-delay: 0.9s; }
.delay-10 { animation-delay: 1s; }

/* Animation Durations */
.duration-fast { animation-duration: 0.3s; }
.duration-normal { animation-duration: 0.6s; }
.duration-slow { animation-duration: 1s; }
.duration-slower { animation-duration: 1.5s; }
.duration-slowest { animation-duration: 2s; }

/* Animation Fill Modes */
.fill-none { animation-fill-mode: none; }
.fill-forwards { animation-fill-mode: forwards; }
.fill-backwards { animation-fill-mode: backwards; }
.fill-both { animation-fill-mode: both; }

/* Animation Timing Functions */
.ease-linear { animation-timing-function: linear; }
.ease-ease { animation-timing-function: ease; }
.ease-ease-in { animation-timing-function: ease-in; }
.ease-ease-out { animation-timing-function: ease-out; }
.ease-ease-in-out { animation-timing-function: ease-in-out; }
.ease-cubic-bezier { animation-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55); }