body {
    margin: 0;
    padding: 0;
    background: url('../img/bg.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: Arial, sans-serif;
}

.overlay {
    background-color: rgba(0, 0, 0, 0.4);
    height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-shadow: 2px 2px 4px #000;
}

.button-container {
    margin-top: 20px;
}

.btn {
    background-color: #007bff;
    color: white;
    padding: 12px 24px;
    margin: 0 10px;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #0056b3;
}