/* ========================================
   ANIMATIONS CSS
   ======================================== */

/* ========================================
   KEYFRAME ANIMATIONS
   ======================================== */

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

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Down */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide In Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Float */
@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(10px, -10px) rotate(5deg);
    }
    50% {
        transform: translate(-5px, 20px) rotate(-5deg);
    }
    75% {
        transform: translate(-15px, 10px) rotate(3deg);
    }
}

/* Bounce */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}

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

/* Shimmer */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

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

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

/* ========================================
   HERO ANIMATIONS
   ======================================== */

.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: var(--delay-1);
}

.delay-2 {
    animation-delay: var(--delay-2);
}

.delay-3 {
    animation-delay: var(--delay-3);
}

.delay-4 {
    animation-delay: var(--delay-4);
}

.delay-5 {
    animation-delay: var(--delay-5);
}

/* ========================================
   UTILITY ANIMATION CLASSES
   ======================================== */

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

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

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

.animate-rotate {
    animation: rotate 20s linear infinite;
}

/* ========================================
   HOVER EFFECTS
   ======================================== */

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

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

/* Hover Scale */
.hover-scale {
    transition: transform var(--transition-base);
}

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

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

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(124, 58, 237, 0.3);
}

/* ========================================
   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: -10px 0 0 -10px;
    border: 2px solid var(--color-accent);
    border-top-color: transparent;
    border-radius: 50%;
    animation: rotate 0.8s linear infinite;
}

/* ========================================
   SCROLL PROGRESS BAR
   ======================================== */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-black), var(--color-accent));
    z-index: var(--z-tooltip);
    transition: width var(--transition-fast);
}

/* ========================================
   COUNTER ANIMATION
   ======================================== */

.counter {
    display: inline-block;
}

/* ========================================
   SPECIAL EFFECTS
   ======================================== */

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

/* Shimmer Effect */
.shimmer {
    position: relative;
    overflow: hidden;
}

.shimmer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* ========================================
   REDUCED MOTION
   ======================================== */

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

    .animate-float,
    .animate-bounce,
    .animate-pulse,
    .animate-rotate {
        animation: none;
    }
}

/* ========================================
   PERFORMANCE OPTIMIZATION
   ======================================== */

/* GPU Acceleration */
.will-animate {
    will-change: transform, opacity;
}

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

/* ========================================
   STAGGERED ANIMATIONS
   ======================================== */

.stagger-in > * {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.stagger-in > *:nth-child(1) { animation-delay: 0ms; }
.stagger-in > *:nth-child(2) { animation-delay: 100ms; }
.stagger-in > *:nth-child(3) { animation-delay: 200ms; }
.stagger-in > *:nth-child(4) { animation-delay: 300ms; }
.stagger-in > *:nth-child(5) { animation-delay: 400ms; }
.stagger-in > *:nth-child(6) { animation-delay: 500ms; }