/* Instrumenta pro Ecclesia — desktop + fake responsive scaling */
html, body {
    width: 100%;
    min-height: 100%;
    margin: 0;
    padding: 0;
    background: #ffffff;
    overflow-x: hidden;
    overflow-y: auto;
}
body { min-height: 100vh; }
#pageViewport {
    position: relative;
    width: 1280px;
    height: 1800px;
    margin: 0 auto;
    overflow: hidden;
}
.contentIframeClass {
    position: absolute;
    top: 0;
    left: 0;
    width: 1280px;
    height: 1800px;
    border: none;
    display: block;
    transform-origin: top left;
}
.dummyIFrameClass, .dummyFrameClass {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
    border: 0 !important;
}
.prev, .next {
    cursor: pointer;
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    padding: 15px;
    color: rgb(0, 0, 0);
    font-weight: bold;
    font-size: 30px;
    visibility: hidden;
    z-index: 1000;
    user-select: none;
}
.prev { left: 0; }
.next { right: 0; border-radius: 3px 0 0 3px; }