:root { color-scheme: dark; }

html, body{
  margin: 0;
  height: 100%;
  background: #000;
}

/* kontener przewijania */
.viewport{
  height: 100vh;
  width: 100vw;

  overflow-x: auto;
  overflow-y: hidden;

  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;

  /* ukryj pasek przewijania */
  scrollbar-width: none;        /* Firefox */
}
.viewport::-webkit-scrollbar{   /* Safari/Chrome */
  display: none;
}

.track{
  display: flex;
  height: 100%;
}

/* 1 slajd = 1 ekran */
.slide{
  flex: 0 0 100vw;
  height: 100vh;
  display: grid;
  place-items: center;
  scroll-snap-align: center;
  scroll-snap-stop: always;
}

.slide img{
  max-height: 80vh;
  max-width: 90vw;
  width: auto;
  height: auto;
  object-fit: contain;

  user-select: none;
  -webkit-user-drag: none;
}