@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@100&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  list-style-type: none;
  font-family: "Montserrat", sans-serif;
  text-align: center;
}
i,
button {
  cursor: pointer;
  background: transparent;
  border: none;
  outline: none;
  transition: 0.25s;
  box-shadow: -20px 20px 60px #75c2d4, 20px -20px 60px #9fffff;
}
button:hover {
  transform: translateX(4px);
}
body {
  background: url(./img/Salar-de-Uyuni-Bolivia-Dry-salt-flats-Travelwithmk.com_.jpg)
    fixed center/cover;
}
h1 {
  font-size: 2.2rem;
  letter-spacing: 2px;
  margin: 25px 0 25px;
}
.fa-undo {
  font-size: 0.7rem;
  backdrop-filter: blur(2px);
  padding: 10px 14px;
  border-radius: 9px;
  margin-left: 15px;
  background: #c4f7fc8a;
  box-shadow: -20px 20px 60px #75c2d4, 20px -20px 60px #9fffff;
  cursor: pointer;
  transform: translateY(-5px);
  transition: 0.2s;
}
.fa-undo:hover {
  background: white;
  transform: translate(3px, -5px);
}
main {
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}
ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin: 0 auto;
}
li {
  flex: 1 0 15%;
  max-width: 250px;
  min-height: 250px;
  margin: 10px;
  padding: 25px 10px 10px;
  border-radius: 10px;
  backdrop-filter: blur(2px);
  background: rgba(255, 255, 255, 0.603);
  box-shadow: -20px 20px 60px #75c2d4, 20px -20px 60px #9fffff;
  display: grid;
  grid-template-rows: 30px 1fr 35px;
  grid-template-columns: 50% 50%;
  grid-template-areas:
    "a a"
    "b b"
    "c d";
}
.card-header {
  display: flex;
  justify-content: center;
  grid-area: a;
}
input[type="number"] {
  background: transparent;
  border: none;
  font-size: 2rem;
  width: 55px;
  z-index: 3;
  outline: none;
  margin-left: 2px;
  padding-right: 15px;
}

li span {
  font-size: 1.8rem;
  text-align: left;
  transform: translate(-16px, -2px);
}
img {
  max-height: 150px;
  max-width: 150px;
  align-self: center;
  margin: 0 auto;
  grid-area: b;
}
li i {
  font-size: 1rem;
  color: #90becc;
  border-radius: 10px;
  transition: 0.1s;
  display: grid;
  align-items: center;
  justify-items: center;
  position: relative;
}
li i:hover {
  background: white;
  transform: scale(1.03);
}
.arrow {
  margin-right: 4px;
}
.deleteBtn {
  margin-left: 4px;
}
.arrow:before,
.deleteBtn:before {
  transform: translate(-50%, -50%);
  position: absolute;
  top: 50%;
  left: 50%;
}
#start {
  margin: 40px 0 80px;
  background: #d7d8d848;
  padding: 14px 28px;
  font-size: 1.8rem;
  border-radius: 16px;
  backdrop-filter: blur(3px);
}
#start:hover {
  background: white;
}
#start i {
  transform: translate(8px, -1px);
  color: #627c85;
  font-size: 1.3rem;
}
.exercice-container {
  border-radius: 20px;
  backdrop-filter: blur(3px);
  background: rgba(255, 255, 255, 0.503);
  box-shadow: -20px 20px 60px #75c2d4, 20px -20px 60px #aef8f8ad;
  padding: 50px 0;
  width: 70%;
  min-width: 250px;
  max-width: 600px;
}
.exercice-container p {
  font-size: 5rem;
  letter-spacing: 10px;
  margin: 0;
}
.exercice-container img {
  max-height: 200px;
  max-width: 200px;
  margin: 10px;
}
.exercice-container div {
  font-size: 2rem;
  margin-top: 30px;
  letter-spacing: 8px;
}
.btn-reboot {
  backdrop-filter: blur(2px);
  background: rgba(255, 255, 255, 0.281);
  box-shadow: -20px 20px 60px #75c2d4, 20px -20px 60px #9fffff;
  padding: 10px;
  border-radius: 12px;
  font-size: 1.1rem;
}
.btn-reboot .fa-times-circle {
  font-size: 0.85rem;
  color: rgb(85, 84, 84);
  margin-left: 4px;
}
@media screen and (max-width: 510px) {
  li {
    min-width: 90%;
  }
}
@media screen and (min-width: 600px) {
  .exercice-container img {
    max-height: 500px;
    max-width: 500px;
  }
}