/* ===================================================================
   SHIYAO - ANIMATIONS
   Animations subtiles et fluides
   =================================================================== */

/* ===================================================================
   KEYFRAMES
   =================================================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
}

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

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

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

/* ===================================================================
   CLASSES D'ANIMATION
   =================================================================== */

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

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

.animate-slide-up {
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-slide-down {
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-scale-in {
    animation: scaleIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

.animate-bounce {
    animation: bounce 1s ease-in-out infinite;
}

.animate-rotate {
    animation: rotate 1s linear infinite;
}

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

.transition-all {
    transition: all 0.3s ease;
}

.transition-colors {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.transition-transform {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

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

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

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-accent-blue);
    border-radius: 50%;
    animation: rotate 0.8s linear infinite;
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
}

/* ===================================================================
   REDUCED MOTION (Accessibilité)
   =================================================================== */

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