/* Animation and Transition Styles - Spring Atlas */
/* Optimized for performance and accessibility */

/* Keyframe Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -15px, 0);
    }
    70% {
        transform: translate3d(0, -7px, 0);
    }
    90% {
        transform: translate3d(0, -2px, 0);
    }
}

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

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-10px) rotate(-2deg);
    }
    66% {
        transform: translateY(-5px) rotate(2deg);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
    }
    50% {
        box-shadow: 0 0 40px rgba(99, 102, 241, 0.8);
    }
}

@keyframes typewriter {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

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

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

/* Animation Utility Classes */
.animate-fade-in {
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-slide-in-left {
    animation: slideInLeft 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-slide-in-right {
    animation: slideInRight 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-scale-in {
    animation: scaleIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

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

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

.animate-float {
    animation: float 6s ease-in-out infinite;
}

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

/* Transition Classes */
.transition-all {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-colors {
    transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-transform {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-opacity {
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-4px);
}

.hover-scale {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.hover-glow {
    transition: box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-glow:hover {
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

/* Loading Animations */
.loading-dots span {
    animation: pulse 1.4s ease-in-out infinite both;
}

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

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

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

/* Page Transitions */
.page-transition-enter {
    opacity: 0;
    transform: translateX(100px);
}

.page-transition-enter-active {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.page-transition-exit {
    opacity: 1;
    transform: translateX(0);
}

.page-transition-exit-active {
    opacity: 0;
    transform: translateX(-100px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Staggered Animations */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
}

.stagger-item.animate {
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) 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; }

/* Mobile Menu Animation */
.mobile-menu-enter {
    transform: translateY(-100%);
    opacity: 0;
}

.mobile-menu-enter-active {
    transform: translateY(0);
    opacity: 1;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu-exit {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu-exit-active {
    transform: translateY(-100%);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Burger Menu Animation */
.burger-menu.active .burger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger-menu.active .burger-line:nth-child(2) {
    opacity: 0;
}

.burger-menu.active .burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

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

/* GPU Acceleration for better performance */
.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Animation Delays */
.delay-75 { animation-delay: 75ms; }
.delay-100 { animation-delay: 100ms; }
.delay-150 { animation-delay: 150ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-500 { animation-delay: 500ms; }
.delay-700 { animation-delay: 700ms; }
.delay-1000 { animation-delay: 1000ms; }

/* Animation Durations */
.duration-75 { animation-duration: 75ms; }
.duration-100 { animation-duration: 100ms; }
.duration-150 { animation-duration: 150ms; }
.duration-200 { animation-duration: 200ms; }
.duration-300 { animation-duration: 300ms; }
.duration-500 { animation-duration: 500ms; }
.duration-700 { animation-duration: 700ms; }
.duration-1000 { animation-duration: 1000ms; }

/* Easing Functions */
.ease-linear { animation-timing-function: linear; }
.ease-in { animation-timing-function: cubic-bezier(0.4, 0, 1, 1); }
.ease-out { animation-timing-function: cubic-bezier(0, 0, 0.2, 1); }
.ease-in-out { animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }