video.css

.video-container {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  padding: 3rem;
  box-sizing: border-box;
}

.video-wrapper {
  position: relative;
  display: grid;
  align-content: center;
  justify-items: center;
}

.video-wrapper:fullscreen {
  /*background: green;*/
}

.video-wrapper:fullscreen .video-controls {
  position: absolute;
  width: 100vw !important;
  bottom: 0;
  left: 0;
  color: white;
}

.video-wrapper:fullscreen video {
  max-width: 100vw;
}

.video-controls {
  width: 400px;
  position: absolute;
  bottom: 0;
  padding: 3rem 1rem 1rem;
  box-sizing: border-box;
  flex-direction: column;
  color: white;
  background: linear-gradient(0deg, black, transparent);

  display: none;
}

.video-wrapper:hover .video-controls,
.video-controls[data-video-state="pause"] {
  display: flex;
}

.video-progress-container-normal {
  height: 15px;
  width: calc(100% - 15px);
  display: flex;
  align-self: center;
  align-items: center;
  cursor: pointer;
  position: relative;
  --child-bar-height: 5px;
}

.video-progress-normal-bck {
  background: var(--timeline-bck);
  width: 100%;
  position: absolute;
  height: var(--child-bar-height);
  z-index: 0;
}

.video-progress-normal-buffered {
  z-index: 1;
  display: none;
}

.video-progress-normal-seek-bar {
  position: absolute;
  left: var(--seek-progress);
  top: 50%;
  translate: 0 -50%;
  width: 100%;
  height: var(--child-bar-height);
  scale: 0 1;
  transform-origin: left;
  background: var(--timeline-seek);
  z-index: 2;
}

.video-progress-normal-fig {
  position: absolute;
  left: calc(var(--seek-progress) * 1%);
  top: 0;
  translate: -50% -110%;
  display: none;

  /*pointer-events: none;*/
}

.video-progress-container-normal:hover .video-progress-normal-fig {
  display: block;
}

/*.video-progress-normal-img {*/
/*  width: 250px;*/
/*  height: auto;*/
/*  object-fit: contain;*/
/*  background: black;*/
/*}*/

.video-progress-normal-fig-caption {
  text-align: center;
}

.video-progress-normal-timeline-bar {
  background: var(--timeline-bar);
  width: 100%;
  height: var(--child-bar-height);
  scale: 0 1;
  transform-origin: left;
  z-index: 3;
}

.video-progress-normal-nib {
  position: absolute;
  top: 50%;
  left: 0;
  translate: -50% -50%;
  display: inline-block;
  --w: 20px;
  width: var(--w);
  height: var(--w);
  border-radius: 50%;
  background: var(--timeline-bar);
  cursor: pointer;
  transform-origin: center;
  z-index: 4;
}

.video-progress-normal-nib::after {
  content: " ";
  position: absolute;
  --w: 50%;
  width: var(--w);
  height: var(--w);
  border-radius: 50%;
  background: var(--timeline-nib-psuedo);
  top: 50%;
  left: 50%;
  translate: -50% -50%;
}

.video-control-button-wrapper {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.5rem;
}

.video-time {
  margin-right: auto;
}

.video-control-button-wrapper button {
  font-size: 2.5rem;
  padding: 0;
  display: flex;
  cursor: pointer;
  color: inherit;
}

#seek-bwd-btn {
  rotate: y 180deg;
}

.video-progress-container-topics {
  --progress: 0;
  --seek-progress: 0;
  cursor: pointer;
  --parent-height: 15px;
  height: var(--parent-height);
  width: calc(100% - 15px);
  align-self: center;
  display: flex;
  align-items: center;
  justify-content: start;
  gap: 2px;
  box-sizing: border-box;
  --child-bar-height: 5px;
  position: relative;
}

.video-topic-bar {
  --offset-progress: 0;
  --share-of-total-width: 0;
  position: relative;
  height: var(--child-bar-height);
  /*padding: calc((var(--parent-height) - var(--child-bar-height)) / 2) 0px;*/
  box-sizing: border-box;
  background: var(--timeline-bck);
  z-index: 0;
}

.video-topic-seek-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--timeline-seek);
  z-index: 1;
  min-width: 0%;
  max-width: 100%;
  width: calc(
    (
        (var(--seek-progress) - var(--offset-progress)) /
          var(--share-of-total-width)
      ) * 100%
  );
}

.video-topic-buffered-bar {
  display: none;
  z-index: 2;
}

.video-topic-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--timeline-bar);
  z-index: 3;
  min-width: 0%;
  max-width: 100%;
  width: calc(
    ((var(--progress) - var(--offset-progress)) / var(--share-of-total-width)) *
      100%
  );
  /*width: calc((1 / 5) * 100px);*/
}

.video-topic-bar:hover {
  height: calc(var(--child-bar-height) * 3);
}

.video-progress-topics-nib {
  position: absolute;
  top: 50%;
  left: 0;
  translate: -50% -50%;
  display: inline-block;
  scale: 0;
  --w: 20px;
  width: var(--w);
  height: var(--w);
  border-radius: 50%;
  background: var(--timeline-bar);
  cursor: pointer;
  transform-origin: center;
  z-index: 4;
  transition: scale 0.1s linear;

  /*  TODO: remove this */
  pointer-events: none;
}

.video-progress-topics-nib::after {
  content: " ";
  position: absolute;
  --w: 50%;
  width: var(--w);
  height: var(--w);
  border-radius: 50%;
  background: var(--timeline-nib-psuedo);
  top: 50%;
  left: 50%;
  translate: -50% -50%;
}

.video-progress-container-topics:hover .video-progress-topics-nib {
  scale: 1;
}

.video-progress-topics-fig {
  position: absolute;
  left: calc(var(--seek-progress) * 1%);
  top: 0;
  translate: -50% -100%;
  display: none;
  z-index: 5;
  /*display: block;*/

  pointer-events: none;
}

/* TODO: PROBLEM */
/*.video-progress-container-topics:has(> .video-topic-bar:hover) .video-progress-topics-fig {*/
.video-progress-container-topics:hover .video-progress-topics-fig {
  display: block;
}

.video-progress-topic-fig-caption {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.video-participants {
  padding: 3rem;
}

.participants-timeline-img,
.video-progress-topics-img,
.video-progress-normal-img {
  max-width: 250px;
  height: auto;
  object-fit: contain;
  background: black;
}