body {
    padding-top: 20px;
    padding-bottom: 40px;
}

.navbar {
    margin-bottom: 20px;
}

.carousel {
    margin-bottom: 30px;
}

.card {
    margin-bottom: 20px;
}

footer {
    background-color: #f8f8fa;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
    text-align: center;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.spin {
    animation: spin 2s linear infinite;
}