body {
    background-image: url("bg.jpg");
    background-size: cover;
    background-position: center;
}

.responsive-container {
    max-width: 100%;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

@media (max-width: 768px) {
    .responsive-container {
        padding: 15px;
    }

    select {
        height: auto;
    }

    button {
        width: 100%;
        margin-top: 10px;
    }
}