.hero {
    background: linear-gradient(rgba(0, 123, 255, 0.8), url('https://via.placeholder.com/1920x600') no-repeat center center/cover;
    color: white;
    padding: 6rem 0;
}

.card {
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    border-radius: 10px;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.bi {
    font-size: 3rem;
}

.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}