/* ==========================================================================
   NaNena Landing Page - Animations Stylesheet
   ========================================================================== */

/* 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);
    }
}

/* Slide Up */
@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

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

/* Base animation class */
.animate {
    animation-duration: 0.8s;
    animation-fill-mode: both;
    animation-timing-function: ease-out;
}

/* Fade animations */
.fade-in {
    animation-name: fadeIn;
}

.fade-in-up {
    animation-name: fadeInUp;
}

.fade-in-down {
    animation-name: fadeInDown;
}

.fade-in-left {
    animation-name: fadeInLeft;
}

.fade-in-right {
    animation-name: fadeInRight;
}

/* Scale animation */
.scale-in {
    animation-name: scaleIn;
}

/* Slide animation */
.slide-up {
    animation-name: slideUp;
}

/* Animation Delays */
.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

.delay-4 {
    animation-delay: 0.8s;
}

.delay-5 {
    animation-delay: 1s;
}

/* Scroll-triggered animations - hidden by default */
[data-animate] {
    opacity: 0;
}

[data-animate].animated {
    animation-duration: 0.8s;
    animation-fill-mode: both;
    animation-timing-function: ease-out;
}

[data-animate="fade-in"].animated {
    animation-name: fadeIn;
}

[data-animate="fade-in-up"].animated {
    animation-name: fadeInUp;
}

[data-animate="fade-in-down"].animated {
    animation-name: fadeInDown;
}

[data-animate="fade-in-left"].animated {
    animation-name: fadeInLeft;
}

[data-animate="fade-in-right"].animated {
    animation-name: fadeInRight;
}

[data-animate="scale-in"].animated {
    animation-name: scaleIn;
}

/* Stagger delays for multiple elements */
[data-animate].animated:nth-child(1) {
    animation-delay: 0s;
}

[data-animate].animated:nth-child(2) {
    animation-delay: 0.1s;
}

[data-animate].animated:nth-child(3) {
    animation-delay: 0.2s;
}

[data-animate].animated:nth-child(4) {
    animation-delay: 0.3s;
}

[data-animate].animated:nth-child(5) {
    animation-delay: 0.4s;
}

[data-animate].animated:nth-child(6) {
    animation-delay: 0.5s;
}

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

/* Lift effect on hover */
.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, 0.15);
}

/* Grow effect on hover */
.hover-grow {
    transition: transform 0.3s ease;
}

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

/* Brighten effect on hover */
.hover-brighten {
    transition: filter 0.3s ease;
}

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

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

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

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

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

/* Smooth parallax for mobile (background-attachment: fixed not supported well) */
@media (max-width: 768px) {
    .parallax {
        background-attachment: scroll;
    }
}

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

/* Pulse animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(0.95);
    }
}

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

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

.skeleton {
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: 4px;
}

/* Fade transition for image loading */
.image-fade-in {
    opacity: 0;
    transition: opacity 0.5s ease-in;
}

.image-fade-in.loaded {
    opacity: 1;
}

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

/* Fade in page on load */
@keyframes pageLoad {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

body {
    animation: pageLoad 0.5s ease-in;
}

/* Section reveal on scroll */
.section-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children animations */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.animated > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-children.animated > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-children.animated > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-children.animated > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-children.animated > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-children.animated > *:nth-child(6) { transition-delay: 0.6s; }

.stagger-children.animated > * {
    opacity: 1;
    transform: translateY(0);
}

/* Text Animations
   ========================================================================== */

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

.typing-effect {
    overflow: hidden;
    white-space: nowrap;
    border-right: 2px solid;
    animation: typing 3s steps(40) 1s forwards;
}

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

.gradient-text {
    background: linear-gradient(
        90deg,
        var(--color-primary),
        var(--color-secondary),
        var(--color-primary)
    );
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 3s ease infinite;
}

/* Button Animations
   ========================================================================== */

/* Ripple effect */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
}

/* Shake animation for errors */
@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;
}

/* Success checkmark animation */
@keyframes checkmark {
    0% {
        stroke-dashoffset: 100;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

.checkmark {
    stroke-dasharray: 100;
    animation: checkmark 0.5s ease forwards;
}

/* Progress bar animation */
@keyframes progress {
    from {
        width: 0%;
    }
    to {
        width: 100%;
    }
}

.progress-bar {
    animation: progress 2s ease forwards;
}

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

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

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

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

/* Performance Optimizations
   ========================================================================== */

/* Use transform and opacity for better performance */
.will-animate {
    will-change: transform, opacity;
}

/* Reduce motion for users who prefer it */
@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;
    }

    .parallax {
        background-attachment: scroll;
    }
}

/* Utility Classes
   ========================================================================== */

/* Prevent animations on page load */
.no-animate {
    animation: none !important;
    transition: none !important;
}

/* Force hardware acceleration */
.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}