/* Custom styles untuk perpustakaan digital */
.book-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.book-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.news-card {
    transition: transform 0.3s ease;
}

.news-card:hover {
    transform: translateY(-3px);
}

/* Logo Styles */
.logo-container {
    transition: transform 0.3s ease;
}

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

/* Header logo */
.header-logo {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* Hero section logo */
.hero-logo {
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.2));
    animation: float 3s ease-in-out infinite;
}

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

/* Mobile responsive logo */
@media (max-width: 768px) {
    .header-logo {
        height: 32px;
        width: 32px;
    }
    
    .hero-logo {
        height: 60px;
        width: 60px;
    }
}