* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Raleway", sans-serif;
}
body {
  height: 100vh;
  background: linear-gradient(135deg, #8052ec, #d161ff);
}
html {
  font-size: 16px;
}
.controls {
  display:flex;
  flex-direction: row;
  justify-content: center; 
  align-items: center;
  text-align: center;
}
.wrapper {
  position: absolute;
  transform: translate(-50%, -50%);
  top: 50%;
  left: 50%;
}
.container {
  width: 70vmin;
  height: 70vmin;
  display: flex;
  flex-wrap: wrap;
  gap: 2vmin;
}
.button-option {
  background: #ffffff;
  height: 22vmin;
  width: 22vmin;
  border: none;
  border-radius: 8px;
  font-size: 12vmin;
  color: rgb(209, 97, 255);
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
  transition: background-color 0.2s, color 0.5s;
}
.button-option:hover {
  background-color: #EBEBFF; /* lavender, tan #6E6FB Y= */
}
#depth, #depth-label {
  margin: 1em;
  font-size: 125%; /* 125% Y 1.4em */
  margin-top: 3em;
}
#restart {
  font-size: 1.4em;
  padding: 1em;
  border-radius: 8px;
  background-color: #0a0027;
  color: #ffffff;
  border: none;
  position: relative;
  margin: 1.5em auto 0 auto;
  display: block;
}
#new-game {
  font-size: 0.6em;
  padding: 0.5em 1em;
  background-color: #0a0027;
  color: #ffffff;
  border-radius: 0.2em;
  border: none;
}
#message {
  color: #ffffff;
  text-align: center;
  font-size: 1em;
}
.popup.hide {
  display: none;
}

/* github corner */

.github-corner:hover .octo-arm {
  animation: octocat-wave 560ms ease-in-out
}

@keyframes octocat-wave {
  0%, 100% {transform: rotate(0)}
  20%, 60% {transform: rotate(-25deg)} 
  40%, 80% {transform: rotate(10deg)}
}

@media (max-width: 500px) {
  .github-corner:hover .octo-arm {
    animation: none
  }
  
  .github-corner .octo-arm {
    animation: octocat-wave 560ms ease-in-out
  }
}