/* ========================================
   Animations - Keyframes & Transitions
   ======================================== */

/* ===== Keyframe Animations ===== */

/* Spin Animation for Loader */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* Float Animation for Scroll Indicator */
@keyframes float {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

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

    to {
        opacity: 1;
    }
}

/* Fade In Up Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Down Animation */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Left Animation */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Fade In Right Animation */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale In Animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Pulse Animation */
@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

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

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* ===== Scroll Reveal Classes ===== */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Reveal Delays for Staggered Animations */
[data-reveal]:nth-child(1) {
    transition-delay: 0ms;
}

[data-reveal]:nth-child(2) {
    transition-delay: 100ms;
}

[data-reveal]:nth-child(3) {
    transition-delay: 200ms;
}

[data-reveal]:nth-child(4) {
    transition-delay: 300ms;
}

[data-reveal]:nth-child(5) {
    transition-delay: 400ms;
}

[data-reveal]:nth-child(6) {
    transition-delay: 500ms;
}

/* ===== Parallax Effect ===== */
[data-parallax] {
    transition: transform 0.1s ease-out;
    will-change: transform;
}

/* ===== Hover Effects ===== */

/* Grow on Hover */
.hover-grow {
    transition: transform var(--transition-base);
}

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

/* Lift on Hover */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* Glow on Hover */
.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: var(--shadow-glow);
}

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

.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;
}

/* ===== Loading States ===== */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin-top: -10px;
    margin-left: -10px;
    border: 2px solid var(--color-light-darker);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ===== Shimmer Loading Effect ===== */
@keyframes shimmer {
    0% {
        background-position: -468px 0;
    }

    100% {
        background-position: 468px 0;
    }
}

.skeleton {
    animation: shimmer 1.5s ease-in-out infinite;
    background: linear-gradient(to right,
            var(--color-light-darker) 0%,
            var(--color-light) 50%,
            var(--color-light-darker) 100%);
    background-size: 800px 100%;
}

/* ===== Entrance Animations ===== */
.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

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

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

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

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

.animate-scale-in {
    animation: scaleIn 0.6s ease-out;
}

/* ===== Attention Seekers ===== */
.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* ===== Smooth Transitions ===== */
.transition-all {
    transition: all var(--transition-base);
}

.transition-fast {
    transition: all var(--transition-fast);
}

.transition-slow {
    transition: all var(--transition-slow);
}

/* ===== Reduce Motion for 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;
    }

    [data-reveal] {
        opacity: 1;
        transform: none;
        transition: none;
    }

    [data-parallax] {
        transform: none !important;
    }
}

/* ===== Performance Optimizations ===== */
/* Use hardware acceleration for smoother animations */
.animate-3d {
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Will-change for frequently animated elements */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}