.ppm-pro {
    max-width: 720px;
    background: #fff;
    padding: 24px;
    border-radius: 14px;
    box-shadow: 0 20px 40px rgba(0,0,0,.12);
}
.ppm-pro h1 {
    margin-bottom: 10px;
}
.ppm-pro input, .ppm-pro select, .ppm-pro button {
    width: 100%;
    margin: 10px 0;
    padding: 12px;
}
.ppm-pro button {
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 8px;
}
#outputCanvas {
    width: 100%;
    margin-top: 15px;
}
#downloadBtn {
    display: inline-block;
    margin-top: 12px;
    background: #16a34a;
    color: #fff;
    padding: 10px 16px;
    text-decoration: none;
    border-radius: 6px;
}