body {
    background-color: #f4f6f9;
}
.slide-image {
    max-width: 100%;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.card-formation {
    transition: transform 0.15s ease;
}
.card-formation:hover {
    transform: translateY(-3px);
}