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/* Keep presentation controls visible on desktop screens. */
@media (min-width: 951px) {
  body { height: 100dvh; min-height: 0; grid-template-rows: auto minmax(0, 1fr) auto; }
  .deck { min-height: 0; overflow: hidden; }
  .slide { min-height: 0; height: 100%; padding-top: 24px; padding-bottom: 24px; }
}