/* ==========================================================================
   ANIMATIONS & TRANSITIONS
   ========================================================================== */

/* Shimmer Animation for Skeleton Loaders */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.skeleton-block {
    background: linear-gradient(90deg, 
        rgba(0, 0, 0, 0.06) 25%, 
        rgba(0, 0, 0, 0.1) 37%, 
        rgba(0, 0, 0, 0.06) 63%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite ease-in-out;
    border-radius: 4px;
}

.header-skeleton {
    height: 40px;
    width: 60%;
}

.card-skeleton {
    height: 120px;
    border-radius: var(--radius-md);
}

.text-skeleton {
    height: 20px;
    width: 40%;
}

.item-skeleton {
    height: 80px;
    border-radius: var(--radius-sm);
}

.item-skeleton-small {
    height: 60px;
    border-radius: var(--radius-sm);
}

/* Page Load Slide and Fade Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Helper Animation Classes */
.animate-fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in-down {
    animation: fadeInDown 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Pulse / Glow Animation */
@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(15, 157, 88, 0.4);
    }
    70% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(15, 157, 88, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(15, 157, 88, 0);
    }
}

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

/* Button & Arrow hover micro-animations */
.btn-arrow {
    transition: transform var(--transition-fast);
}

.btn-premium:hover .btn-arrow {
    transform: translateX(4px);
}

/* Skeleton overlay transition */
.skeleton-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-card);
    z-index: 10;
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.skeleton-overlay.d-block {
    opacity: 1;
    visibility: visible;
}