/* 
 * Rush Engine - Animations & Effects
 * Améliore l'UX avec des animations fluides
 */

/* ============================================
   ANIMATIONS GÉNÉRALES
   ============================================ */

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Slide In Right */
@keyframes slideInRight {
    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);
    }
}

/* Pulse */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

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

/* Glow */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(251, 191, 36, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(251, 191, 36, 0.6);
    }
}

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

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

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

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

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

.animate-slide-in-right {
    animation: slideInRight 0.6s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.5s ease-out forwards;
}

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

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

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

.animate-shimmer {
    background: linear-gradient(90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0) 100%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

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

/* Animation Delays */
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }
.animate-delay-6 { animation-delay: 0.6s; }
.animate-delay-7 { animation-delay: 0.7s; }
.animate-delay-8 { animation-delay: 0.8s; }

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

.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(251, 191, 36, 0.5);
}

.hover-brighten {
    transition: filter 0.3s ease;
}

.hover-brighten:hover {
    filter: brightness(1.2);
}

/* ============================================
   SCROLL ANIMATIONS (Intersection Observer)
   ============================================ */

.scroll-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   LOADING STATES
   ============================================ */

.skeleton {
    background: linear-gradient(90deg,
        rgba(255, 255, 255, 0.1) 25%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.1) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.loading-spinner {
    border: 3px solid rgba(251, 191, 36, 0.1);
    border-top-color: #fbbf24;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: rotate 0.8s linear infinite;
}

/* ============================================
   PAGE TRANSITIONS
   ============================================ */

.page-transition-enter {
    opacity: 0;
    transform: scale(0.95);
}

.page-transition-enter-active {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

.page-transition-exit {
    opacity: 1;
}

.page-transition-exit-active {
    opacity: 0;
    transition: opacity 0.2s ease-in;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

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

/* Focus states for keyboard navigation */
*:focus-visible {
    outline: 2px solid #fbbf24;
    outline-offset: 2px;
}

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================ */

/* GPU Acceleration for smoother animations */
.gpu-accelerate {
    transform: translateZ(0);
    will-change: transform;
}

/* Prevent layout shift during animations */
.prevent-shift {
    contain: layout style paint;
}