/**
 * Animations for Academic Lab Hugo Theme
 * Version: 1.0.0
 */

/* Base animation styles */
* {
    transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

/* Reduced motion support */
@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;
    }
}

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

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

/* Fade in up animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.4s ease-out;
}

/* Fade in down animation */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-down {
    animation: fadeInDown 0.4s ease-out;
}

/* Fade in left animation */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-left {
    animation: fadeInLeft 0.4s ease-out;
}

/* Fade in right animation */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-right {
    animation: fadeInRight 0.4s ease-out;
}

/* Scale in animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.scale-in {
    animation: scaleIn 0.3s ease-out;
}

/* Slide in from left */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.3s ease-out;
}

/* Slide in from right */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.3s ease-out;
}

/* Slide in from top */
@keyframes slideInTop {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.slide-in-top {
    animation: slideInTop 0.3s ease-out;
}

/* Slide in from bottom */
@keyframes slideInBottom {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

.slide-in-bottom {
    animation: slideInBottom 0.3s ease-out;
}

/* Bounce animation */
@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        transform: translate3d(0, -30px, 0);
    }
    70% {
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        transform: translate3d(0, -15px, 0);
    }
    90% {
        transform: translate3d(0, -4px, 0);
    }
}

.bounce {
    animation: bounce 1s ease infinite;
}

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

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

/* Shake animation */
@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;
}

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

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

/* Flip animation */
@keyframes flip {
    from {
        transform: perspective(400px) rotateY(0);
    }
    to {
        transform: perspective(400px) rotateY(360deg);
    }
}

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

/* Hover effects */
.hover-lift {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.hover-grow {
    transition: transform 0.2s ease;
}

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

.hover-shrink {
    transition: transform 0.2s ease;
}

.hover-shrink:hover {
    transform: scale(0.95);
}

/* Button hover effects */
.btn-hover {
    transition: all 0.2s ease;
}

.btn-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-hover:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

/* Card hover effects */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Image hover effects */
.image-hover {
    overflow: hidden;
}

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

.image-hover:hover img {
    transform: scale(1.1);
}

/* Text hover effects */
.text-hover {
    transition: color 0.2s ease;
}

.text-hover:hover {
    color: var(--color-accent);
}

/* Underline hover effect */
.underline-hover {
    position: relative;
}

.underline-hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width 0.2s ease;
}

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

/* Background hover effects */
.bg-hover {
    transition: background-color 0.2s ease;
}

.bg-hover:hover {
    background-color: var(--bg-secondary);
}

/* Icon hover effects */
.icon-hover {
    transition: transform 0.2s ease;
}

.icon-hover:hover {
    transform: scale(1.2);
}

.icon-hover:active {
    transform: scale(0.9);
}

/* Loading animation */
@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.loading {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

/* Spinner */
@keyframes spinner {
    to {
        transform: rotate(360deg);
    }
}

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

/* Ripple effect */
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

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

.ripple::after {
    content: '';
    position: absolute;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: scale(0);
    opacity: 1;
    pointer-events: none;
}

.ripple:active::after {
    animation: ripple 0.6s ease-out;
}

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

.gradient-animated {
    background-size: 200% 200%;
    animation: gradient 3s ease infinite;
}

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

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

/* Glow effect */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(49, 130, 206, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(49, 130, 206, 0.8);
    }
}

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

/* Typewriter effect */
@keyframes typewriter {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.typewriter {
    overflow: hidden;
    white-space: nowrap;
    animation: typewriter 3s steps(40) 1s 1 normal both;
}

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

.blink {
    animation: blink 1s step-end infinite;
}

/* Stagger animations */
.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; }

/* Animation utilities */
.animate-on-load {
    animation: fadeIn 0.5s ease-out;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

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