body {
    font-family: 'Arial', sans-serif;
}

h1, h2, h3, h4 {
    font-weight: bold;
}

.btn-lg {
    border-radius: 30px;
}

.shadow {
    transition: transform 0.3s ease-in-out;
}

.shadow:hover {
    transform: scale(1.05);
}