/**
 * Animation Utilities
 * Smooth, performant animations for scroll and interactions
 */

/* Base animation classes */
[data-animate] {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate].animated {
    opacity: 1;
}

/* Fade In */
[data-animate="fade-in"] {
    opacity: 0;
}

[data-animate="fade-in"].animated {
    opacity: 1;
}

/* Slide Up */
[data-animate="slide-up"] {
    opacity: 0;
    transform: translateY(40px);
}

[data-animate="slide-up"].animated {
    opacity: 1;
    transform: translateY(0);
}

/* Slide Left */
[data-animate="slide-left"] {
    opacity: 0;
    transform: translateX(40px);
}

[data-animate="slide-left"].animated {
    opacity: 1;
    transform: translateX(0);
}

/* Slide Right */
[data-animate="slide-right"] {
    opacity: 0;
    transform: translateX(-40px);
}

[data-animate="slide-right"].animated {
    opacity: 1;
    transform: translateX(0);
}

/* Scale In */
[data-animate="scale-in"] {
    opacity: 0;
    transform: scale(0.95);
}

[data-animate="scale-in"].animated {
    opacity: 1;
    transform: scale(1);
}

/* Delays */
[data-delay="100"] {
    transition-delay: 0.1s;
}

[data-delay="200"] {
    transition-delay: 0.2s;
}

[data-delay="300"] {
    transition-delay: 0.3s;
}

[data-delay="400"] {
    transition-delay: 0.4s;
}

[data-delay="500"] {
    transition-delay: 0.5s;
}

[data-delay="600"] {
    transition-delay: 0.6s;
}

[data-delay="700"] {
    transition-delay: 0.7s;
}

[data-delay="800"] {
    transition-delay: 0.8s;
}

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

.hover-lift:hover {
    transform: translateY(-8px);
}

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

.hover-glow:hover {
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.4);
}

/* Parallax Effect */
.parallax {
    will-change: transform;
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-surface);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Floating */
.floating {
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Shimmer Effect */
.shimmer {
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Glass Border Animation */
.glass-border {
    position: relative;
}

.glass-border::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: glass-border-rotate 3s linear infinite;
}

@keyframes glass-border-rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Text Gradient Animation */
.text-gradient {
    background: linear-gradient(
        90deg,
        var(--color-primary),
        var(--color-accent),
        var(--color-primary)
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: text-gradient 3s linear infinite;
}

@keyframes text-gradient {
    to {
        background-position: 200% center;
    }
}

/* Fade Slide In */
@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-slide-in {
    animation: fadeSlideIn 0.6s ease-out;
}

/* Blur In */
@keyframes blurIn {
    from {
        filter: blur(10px);
        opacity: 0;
    }
    to {
        filter: blur(0);
        opacity: 1;
    }
}

.blur-in {
    animation: blurIn 0.8s ease-out;
}

/* Stagger Animation for Lists */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeSlideIn 0.6s ease-out 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; }

/* Smooth Transitions */
.transition-all {
    transition: all 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);
}

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

/* Performance Optimization */
.will-change-transform {
    will-change: transform;
}

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

.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}