* {
    font-family: 'Sarabun', sans-serif;
}
body {
    box-sizing: border-box;
}
.course-card:hover {
    transform: translateY(-4px);
}
.course-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.fade-in {
    animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.cart-badge {
    animation: pop 0.3s ease;
}
@keyframes pop {
    0% { transform: scale(0); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}