.main {
  display: contents;
  width: 100%;
  margin-top: 0;
  margin-bottom: 0
}

.page__comments {
  margin-top: 0;
  margin-bottom: 0
}

.article__header {
  margin-top: 0;
  margin-bottom: 0;
}

.iframe-container {
  height: calc(100vh - var(--header-height, 0px) - var(--footer-height, 0px));
  width: 100%;
  overflow: hidden;    /* Clips any "ghost" pixels protruding from the bottom */
  line-height: 0;      /* Secondary defense against inline spacing */
  font-size: 0;        /* Tertiary defense */
}

.iframe-container iframe {
  flex-grow: 1;
  width: 100%;
  height: 100%;
  border: none;
}


.page__footer {
  grid-column: 1 / -1; /* Spans across all grid columns */
  background-color: #f0f0f0; /* Use your theme's footer color */
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}