/* ==================================
   ANIMATIONS.CSS - Advanced UX Animations
   Optimized for Performance & Modern Experience
   ================================== */

/* SCROLL REVEAL ANIMATIONS */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

/* STAGGER CHILDREN FOR SEQUENTIAL REVEALS */
.reveal-stagger .reveal:nth-child(1) { transition-delay: 0.1s; }
.reveal-stagger .reveal:nth-child(2) { transition-delay: 0.2s; }
.reveal-stagger .reveal:nth-child(3) { transition-delay: 0.3s; }
.reveal-stagger .reveal:nth-child(4) { transition-delay: 0.4s; }
.reveal-stagger .reveal:nth-child(5) { transition-delay: 0.5s; }
.reveal-stagger .reveal:nth-child(6) { transition-delay: 0.6s; }

/* 3D CARD HOVER EFFECTS */
.card-3d {
    transform-style: preserve-3d;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.card-3d:hover {
    transform: translateY(-10px) rotateX(2deg) rotateY(2deg);
}

/* RIPPLE EFFECT FOR BUTTONS */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1) translate(-50%, -50%);
    transform-origin: 50% 50%;
}

.ripple:active::after {
    animation: ripple-effect 0.6s ease-out;
}

@keyframes ripple-effect {
    0% {
        transform: scale(0) translate(-50%, -50%);
        opacity: 1;
    }
    100% {
        transform: scale(50) translate(-50%, -50%);
        opacity: 0;
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* GLOW ON HOVER */
.glow-hover {
    position: relative;
    transition: box-shadow 0.3s ease;
}

.glow-hover:hover {
    box-shadow: 0 0 20px rgba(20, 184, 166, 0.6),
                0 0 40px rgba(20, 184, 166, 0.4),
                0 0 60px rgba(20, 184, 166, 0.2);
}

/* PARALLAX EFFECT */
.parallax {
    will-change: transform;
    transition: transform 0.1s ease-out;
}

/* COUNTER ANIMATION */
.counter {
    opacity: 0;
    transform: translateY(20px);
}

.counter.counting {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s ease;
}

/* SKELETON LOADER */
.skeleton {
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.05) 25%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0.05) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

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

/* SLIDE-IN ANIMATIONS */
.slide-in-bottom {
    animation: slide-in-bottom 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slide-in-bottom {
    from {
        transform: translateY(100px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* FADE-IN SCALE */
.fade-in-scale {
    animation: fade-in-scale 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ROTATE ON HOVER (for icons) */
.rotate-on-hover {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.rotate-on-hover:hover {
    transform: rotate(360deg);
}

/* BOUNCE ANIMATION */
.bounce {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* SHAKE ANIMATION (for errors/attention) */
.shake {
    animation: shake 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

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

@keyframes floating {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* GRADIENT TEXT ANIMATION */
.gradient-animate {
    background-size: 200% auto;
    animation: gradient-shift 3s linear infinite;
}

@keyframes gradient-shift {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

/* TILT EFFECT */
.tilt {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tilt:hover {
    transform: perspective(1000px) rotateX(5deg) rotateY(-5deg) scale(1.02);
}

/* BORDER RADIUS MORPH */
.morph-radius {
    transition: border-radius 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.morph-radius:hover {
    border-radius: var(--radius-3xl);
}

/* EXPAND ON HOVER */
.expand-hover {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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