@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600&display=swap");
:root {
  --ff-body: "Outfit", sans-serif;
  --fs-body: 18rem;
  /* Primary */
  --clr-softBlue: hsl(215, 51%, 70%);
  --clr-cyan: hsl(178, 100%, 50%);
  /* Neutral */
  --clr-VeryDarkBlueMain: hsl(217, 54%, 11%);
  --clr-VeryDarkBlueCard: hsl(216, 50%, 16%);
  --clr-VeryDarkBlueLine: hsl(215, 32%, 27%);
  --clr-white: hsl(0, 0%, 100%);
  scroll-behavior: smooth;
}

* {
  padding: 0;
  margin: 0;
  border: 0;
}

*,
*::before,
*::after {
  margin: 0;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

img {
  display: block;
  width: 100%;
  -webkit-user-drag: none;
}

ul,
li {
  list-style-type: none;
}

h1,
h2,
h3,
h4,
h5 {
  font-family: var(--ff-body);
}

html {
  font-size: 6.25%;
  min-width: 320px;
}

@-webkit-keyframes fadeOut {
  from {
    opacity: 0.5;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 0.5;
  }
  to {
    opacity: 1;
  }
}

@-webkit-keyframes fadeIn {
  from {
    opacity: 1;
  }
  to {
    opacity: 0.5;
  }
}

@keyframes fadeIn {
  from {
    opacity: 1;
  }
  to {
    opacity: 0.5;
  }
}

body {
  font-size: var(--fs-body);
  font-weight: 400;
  font-family: var(--ff-body);
  color: var(--clr-white);
  background-color: var(--clr-VeryDarkBlueMain);
  line-height: 1.4;
  padding: 70rem 30rem 0;
}

@media (min-width: 450px) {
  body {
    height: 100vh;
    display: -ms-grid;
    display: grid;
    place-items: center;
    padding: 0;
  }
}

main {
  max-width: -webkit-max-content;
  max-width: -moz-max-content;
  max-width: max-content;
  margin-inline: auto;
}

.card {
  max-width: 340rem;
  background-color: var(--clr-VeryDarkBlueCard);
  border-radius: 15rem;
  padding: 25rem;
}

.top__image {
  position: relative;
  border-radius: 7rem;
  overflow: hidden;
  -webkit-transition: 0.3s;
  transition: 0.3s;
  cursor: pointer;
  margin-bottom: 30rem;
}

.top__image:hover {
  background: var(--clr-cyan);
}

.top__image .image__eth {
  -webkit-animation: fadeOut 10.3s forwards;
          animation: fadeOut 10.3s forwards;
}

.top__image .image__view {
  position: absolute;
  height: 45rem;
  width: 45rem;
  top: 50%;
  left: 50%;
  -webkit-transform: translateX(-50%) translateY(-50%);
          transform: translateX(-50%) translateY(-50%);
  opacity: 0;
  visibility: hidden;
  -webkit-transition: 0.3s;
  transition: 0.3s;
}

.top__image:hover .image__view {
  opacity: 1;
  visibility: visible;
}

.top__image:hover .image__eth {
  -webkit-animation: fadeIn 0.3s forwards;
          animation: fadeIn 0.3s forwards;
}

h1 {
  display: inline-block;
  font-size: 22rem;
  margin-bottom: 20rem;
  cursor: pointer;
  -webkit-transition: 0.3s;
  transition: 0.3s;
}

h1:hover {
  color: var(--clr-cyan);
}

.card__text {
  color: var(--clr-softBlue);
  font-size: 16rem;
  padding-bottom: 20rem;
  line-height: 1.6;
}

.eth__data {
  font-size: 16rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  margin-bottom: 14rem;
}

.eth__data .eth__price {
  position: relative;
  color: var(--clr-cyan);
  font-weight: 600;
  padding-left: 18rem;
}

.eth__data .eth__price::before {
  position: absolute;
  content: "";
  inset: 0;
  top: 1rem;
  height: 20rem;
  width: 12rem;
  background-image: url(../images/icon-ethereum.svg);
  background-repeat: no-repeat;
}

.eth__data .eth__days {
  position: relative;
  color: var(--clr-softBlue);
  padding-left: 24rem;
}

.eth__data .eth__days::before {
  position: absolute;
  content: "";
  inset: 0;
  top: 2rem;
  height: 20rem;
  width: 100%;
  background-image: url(../images/icon-clock.svg);
  background-repeat: no-repeat;
}

.card__footer {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  border-top: 1px solid var(--clr-VeryDarkBlueLine);
  padding-top: 14rem;
  font-size: 16rem;
  color: var(--clr-softBlue);
}

.card__footer span {
  cursor: pointer;
  color: var(--clr-white);
  -webkit-transition: 0.3s;
  transition: 0.3s;
}

.card__footer span:hover {
  color: var(--clr-cyan);
}

.avatar__image {
  margin-right: 20rem;
  height: 35rem;
  width: 35rem;
  border-radius: 50%;
  border: 1px solid var(--clr-white);
}