.sdp-download-box {
    padding: 30px;
    border-radius: 8px;
    margin: 20px auto;
    border: 1px solid #e5e5e5;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    display: flex; /* Flex layout if needed, based on alignment settings */
    flex-wrap: wrap;
    align-items: center;
    max-width: 800px;
    background-color: #f9f9f9;
}
.sdp-img-wrapper {
    flex: 0 0 100%;
    margin-bottom: 20px;
}
.sdp-content-wrapper {
    flex: 0 0 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
@media (min-width: 768px) {
    .sdp-download-box {
        flex-wrap: nowrap;
        justify-content: center; /* Center main items */
    }
    .sdp-img-wrapper {
        flex: 0 0 35%;
        margin-right: 5%;
        margin-bottom: 0;
        display: flex;
        justify-content: center;
    }
    .sdp-content-wrapper {
        flex: 0 0 60%;
        text-align: center;
        align-items: center; /* Center flex children vertically */
    }
}
.sdp-form {
    max-width: 400px; /* Limit width */
    width: 100%;
    margin: 20px auto; /* Auto margin centers block elements */
    text-align: left; /* Keep inputs readable */
    display: block; 
}
.sdp-content-wrapper h2, 
.sdp-content-wrapper .sdp-desc {
    text-align: center;
    width: 100%;
}

.sdp-img-wrapper img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.sdp-content-wrapper h2 {
    margin-top: 0;
}
.sdp-field, .sdp-checkbox {
    margin-bottom: 15px;
}
.sdp-field input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}
.sdp-form button {
    padding: 12px 24px;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
    width: 100%;
}
.sdp-form button:hover {
    opacity: 0.9;
}
.sdp-response {
    margin-top: 10px;
    font-weight: bold;
}
.sdp-response.success { color: green; }
.sdp-response.error { color: red; }