* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: black;
}

header {
  background-color: red;
  color: white;
  text-align: center;
  rotate: -45deg;
  padding: 4.2rem;
  left: -2vw;
  top: 15vw;
  margin-top: -20vw;
  margin-left: -18.23rem;
  position: absolute;
}

header h1 {
  font-size: 60px;
  padding-top: 18.2rem;
  padding-left: 5.2rem;
  padding-right: 6.2rem;
}

#box_cover {
  position: absolute;
  z-index: -999;
  background: #1e35ba;
  background: linear-gradient(
    145deg,
    rgba(30, 53, 186, 1) 0%,
    rgba(176, 0, 0, 1) 100%
  );
  height: 80vh;
  width: 80vw;
  margin-right: 20%;
  top: 6vw;
}

.lilthang {
  position: absolute;
  background-color: red;
  height: 3.3vh;
  width: 40vw;
  top: 0;
  left: 60%;
  transform: translate(-50%);
}

#music_box {
  position: fixed;
  align-items: center;
  background-color: black;
  color: white;
  left: 81vw;
  padding: 1.23rem;
  top: 5.4%;
}

#music_box h2 {
  max-width: 12ch;
}

#music_box button {
  background-color: white;
  padding: 0.8rem;
  margin-top: 0.8rem;
  margin-left: 2rem;
}

#grille {
  width: calc(50vmin + 12px);
  height: calc(50vmin + 12px);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border: solid rgb(255, 255, 255) 4px;
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translate(-50%);
}
#grille .case {
  border: solid rgb(255, 255, 255) 4px;
  display: grid;
  place-items: center;
  height: 15vmin;
  width: 15vmin;
  margin: auto;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

body.player-n div:hover {
  background-color: #ff000057;
}
body.player-s div:hover {
  background-color: #0000c437;
}

#players {
  position: fixed;
  top: 30%;
  left: 89vw;
  transform: translate(-150%);
  z-index: -999;
  padding: 2rem;
  background-color: black;
}

#players .left_player {
  position: relative;
  padding-bottom: 6.2rem;
}
.left_player.player-n {
  color: #ff0000bf;
}

#players {
  color: gray;
}

#players .right_player {
  top: 30vw;
}

.right_player.player-s {
  color: #0000ffbf;
}

footer {
  position: absolute;
  margin-left: 60%;
  top: 90%;
  color: red;
}

#grille .case img {
  width: 80%;
}

#winner {
  position: fixed;
  min-height: 37vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 999;
  min-width: 20%;
  background-color: hsla(0, 0%, 0%, 0.753);
  left: 50%;
  transform: translate(-50%);
  margin-left: auto;
  margin-right: auto;
  margin-top: 2.2rem;
  transition: opacity 0.3s ease-in-out;
}

.hidden {
  opacity: 0%;
  pointer-events: none;
}

#message {
  color: white;
}

nav {
  margin-top: 1em;
}

nav button {
  padding: 1.25rem;
  border-radius: 15%;
  border: none;
}

@media screen and (max-width: 1811px) {
  header {
    top: 14vw;
    margin-top: -28vw;
    margin-left: -16.23rem;
  }
  header h1 {
    font-size: 36px;
    padding-top: 16.2rem;
    padding-left: 5.2rem;
    padding-right: 6.2rem;
  }
  #box_cover {
    width: 85vw;
  }
  #players {
    left: 104vw;
  }
  .lilthang {
    left: 65%;
  }
}