.hero-section {
    background: url('https://via.placeholder.com/1500x400') no-repeat center center;
    background-size: cover;
    padding: 100px 0;
    color: white;
}

.hero-section h1 {
    font-size: 3.5rem;
    font-weight: bold;
}

.hero-section .lead {
    font-size: 1.5rem;
}

.card {
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-5px);
}

footer {
    margin-top: 50px;
}