/* In this section you start by assigning a shape to the letter and an assigned size. */
.card {
  --rounded: 20px;
  --size: 270px;
  width: var(--size);
  height: calc(var(--size) - 10px);
  border-radius: var(--rounded);
  background: #fff;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

/* With the before property assigns the gradient that will be used as background for the chart. */
.card::before {
  --size: 100%;
  --blur: 20px;
  content: "";
  position: absolute;
  width: var(--size);
  height: var(--size);
  filter: blur(var(--blur));
  background-color: #faff99;
  background-image: radial-gradient(at 33% 82%, hsla(254,71%,69%,1) 0px, transparent 50%),
  radial-gradient(at 28% 4%, hsla(289,96%,63%,1) 0px, transparent 50%),
  radial-gradient(at 69% 49%, hsla(309,91%,71%,1) 0px, transparent 50%),
  radial-gradient(at 94% 14%, hsla(232,66%,62%,1) 0px, transparent 50%),
  radial-gradient(at 19% 93%, hsla(51,98%,74%,1) 0px, transparent 50%),
  radial-gradient(at 15% 80%, hsla(194,87%,63%,1) 0px, transparent 50%),
  radial-gradient(at 56% 52%, hsla(109,71%,61%,1) 0px, transparent 50%);
}

/* Cover the chart with a light white tone, this helps the gradient colors to be less aggressive. */
.card::after {
  --size: 100%;
  content: "";
  position: absolute;
  width: var(--size);
  height: var(--size);
  background: rgba(255, 255, 255, 0.5);
}

/* 
In this section you define where the video cover will be displayed.
Modify the background-image with the address of the cover to use. */
.card__view {
  position: absolute;
  height: 55%;
  left: 0;
  top: 0;
  right: 0;
  margin: auto;
  z-index: 1;
  background-image: linear-gradient(to right bottom, #fff, #e2e2e2);
  background-repeat: no-repeat;
  background-size: cover;
}

/* When hovering over the element you can see the video preview. */
/* Place in the HTML an "iframe" tag with the address of the youtube video to show as preview. 
   The iframe tag must be a child of the div with the class "card__view".
   Also place a class with name "preview__video". */
.card:hover .preview__video {
  opacity: 100;
}

.preview__video {
  transition: opacity 300ms;
  opacity: 0;
}


/* In this section you define the size and position of the section that will contain the video content. */
.card__content {
  position: absolute;
  z-index: 2;
  width: 100%;
  height: 40%;
  left: 0;
  right: 0;
  bottom: 0;
  padding-left: 9px;
  padding-right: 9px;
  color: #000;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.channel__video__name {
  font-size: 0.8em;
  margin-bottom: 10px;
  max-height: 50%;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: bold;
  color: #000;
}

.channel__data {
  display: flex;
  align-items: center;
  width: 100%;
  gap: 10px;
  margin-bottom: 8px;
}

/* In this section you assign the image of the channel that owns the video, modify the parameter "background-image" by the address of the channel cover. */
.channel__img {
  --size-channel: 35px;
  --rounded: 50%;
  --duration: 300ms;
  min-width: var(--size-channel);
  min-height: var(--size-channel);
  border-radius: var(--rounded);
  transition: transform var(--duration);
  background-repeat: no-repeat;
  background-size: cover;
  background-color: #99cfff;
  background-image: radial-gradient(at 6% 14%, hsla(234,90%,72%,1) 0px, transparent 50%),
  radial-gradient(at 9% 73%, hsla(298,79%,64%,1) 0px, transparent 50%),
  radial-gradient(at 50% 38%, hsla(196,72%,75%,1) 0px, transparent 50%),
  radial-gradient(at 61% 82%, hsla(288,92%,79%,1) 0px, transparent 50%),
  radial-gradient(at 91% 67%, hsla(170,86%,66%,1) 0px, transparent 50%),
  radial-gradient(at 83% 29%, hsla(289,73%,63%,1) 0px, transparent 50%),
  radial-gradient(at 93% 34%, hsla(191,88%,75%,1) 0px, transparent 50%);
}

.channel__img:hover {
  transform: scale(1.08);
}

.channel__data__text {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 100%;
}

.channel__subdata {
  display: flex;
  gap: 10px;
}

.channel__name {
  font-size: 0.8em;
  transition: color 400ms;
}

.channel__views, .channel__date {
  font-size: 0.6em;
}

.card__view__data {
  position: absolute;
  bottom: 0;
  width: 100%;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 8px;
  box-sizing: border-box;
  pointer-events: none;
}

.card__lenght, .card__play__icon, .card__view__preview {
  background: rgba(0, 0, 0, 0.5);
  padding: 5px;
  border-radius: 6px;
  font-size: 0.6em;
  font-weight: bold;
  color: rgba(255, 255, 255, 0.7);
}

.card__play__icon {
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 30px;
}

.card__view__preview {
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 900ms, transform 900ms;
}

.card:hover .card__view__preview {
  opacity: 100;
  transform: translateY(0px);
}

/* List of other colors you can use */
.card:nth-child(2n)::before {
  background-color: #ffd399;
  background-image: radial-gradient(at 15% 65%, hsla(249,84%,60%,1) 0px, transparent 50%),
 radial-gradient(at 38% 24%, hsla(197,80%,66%,1) 0px, transparent 50%),
 radial-gradient(at 65% 93%, hsla(228,83%,60%,1) 0px, transparent 50%),
 radial-gradient(at 16% 58%, hsla(314,83%,72%,1) 0px, transparent 50%),
 radial-gradient(at 77% 57%, hsla(298,90%,78%,1) 0px, transparent 50%),
 radial-gradient(at 76% 95%, hsla(178,64%,76%,1) 0px, transparent 50%),
 radial-gradient(at 15% 61%, hsla(248,75%,64%,1) 0px, transparent 50%);
}

.card:nth-child(3n)::before {
  background-color: #99b3ff;
  background-image: radial-gradient(at 93% 72%, hsla(293,71%,70%,1) 0px, transparent 50%),
  radial-gradient(at 28% 37%, hsla(252,81%,71%,1) 0px, transparent 50%),
  radial-gradient(at 25% 59%, hsla(158,67%,62%,1) 0px, transparent 50%),
  radial-gradient(at 48% 16%, hsla(197,69%,63%,1) 0px, transparent 50%),
  radial-gradient(at 70% 56%, hsla(171,69%,70%,1) 0px, transparent 50%),
  radial-gradient(at 7% 33%, hsla(65,65%,79%,1) 0px, transparent 50%),
  radial-gradient(at 89% 22%, hsla(286,64%,72%,1) 0px, transparent 50%);
}

.card:nth-child(4n)::before {
  background-color: #e2ff99;
  background-image: radial-gradient(at 22% 80%, hsla(265,77%,67%,1) 0px, transparent 50%),
  radial-gradient(at 91% 77%, hsla(292,60%,78%,1) 0px, transparent 50%),
  radial-gradient(at 66% 7%, hsla(46,95%,76%,1) 0px, transparent 50%),
  radial-gradient(at 16% 32%, hsla(275,90%,75%,1) 0px, transparent 50%),
  radial-gradient(at 26% 23%, hsla(283,60%,69%,1) 0px, transparent 50%),
  radial-gradient(at 2% 64%, hsla(208,62%,62%,1) 0px, transparent 50%),
  radial-gradient(at 62% 77%, hsla(112,88%,75%,1) 0px, transparent 50%);
}

.card:nth-child(5n)::before {
  background-color: #99d1ff;
  background-image: radial-gradient(at 21% 94%, hsla(270,95%,76%,1) 0px, transparent 50%),
  radial-gradient(at 56% 5%, hsla(252,65%,79%,1) 0px, transparent 50%),
  radial-gradient(at 67% 94%, hsla(194,81%,67%,1) 0px, transparent 50%),
  radial-gradient(at 15% 72%, hsla(304,97%,77%,1) 0px, transparent 50%),
  radial-gradient(at 63% 56%, hsla(38,98%,63%,1) 0px, transparent 50%),
  radial-gradient(at 41% 67%, hsla(321,61%,77%,1) 0px, transparent 50%),
  radial-gradient(at 68% 68%, hsla(263,67%,69%,1) 0px, transparent 50%);
}