* {
  box-sizing: border-box;
}

body {
  font-family: "Poppins", sans-serif;
  text-align: center;
  color: white;
  background: linear-gradient(to top, #87b7ff, #6f7cf5);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

h1 {
  text-transform: uppercase;
  letter-spacing: 8px;
  font-size: 4rem;
}

.top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  margin-top: -30px;
  margin-bottom: -5px;
}

.score {
  display: flex;
  gap: 40px;
  justify-content: center;
  align-items: center;
  padding-bottom: -10px;
}

.info {
  letter-spacing: 2px;
}

b {
  letter-spacing: 2px;
}

button {
  font-family: "Poppins", sans-serif;
  font-size: 1.2rem;
  text-align: center;
  color: white;
  padding: 10px 35px;
  border: 3px solid white;
  border-radius: 5px;
  background: none;
  cursor: pointer;
}

button:hover {
  background-color: #ffffff17;
}

@keyframes rotation {
  from {
    transform: rotate(0deg);
    opacity: 0;
  }
  to {
    transform: rotate(360deg);
    opacity: 1;
  }
}

.container {
  width: 500px;
  height: 500px;
  margin: 20px auto;
  background-color: rgba(0, 0, 0, 0.753);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: rotation 5s;
}

.board {
  width: 90%;
  height: 90%;
  border-radius: 50%;
  display: flex;
  flex-wrap: wrap;
  overflow: hidden;
}

.tile {
  width: 50%;
  height: 50%;
}

.tile:hover {
  opacity: 85%;
}

.green {
  background-color: #00a300;
}

.red {
  background-color: #ce0707;
}

.yellow {
  background-color: #ebeb00;
}

.blue {
  background-color: #0000d6;
}

.footer {
  font-size: 0.8rem;
  margin-top: 100px;
}

a {
  color: rgb(255, 255, 255);
}

a:hover {
  color: rgb(0, 0, 0);
}

.inactive {
  opacity: 35%;
}

.hidden {
  display: none;
}

.unclickable {
  pointer-events: none;
}

@media (hover: hover) {
  .tile:hover {
    opacity: 85%;
  }
}

@media only screen and (max-width: 495px) {
  body {
    padding: 18px;
  }

  h1 {
    font-size: 40px;
    margin-top: 70px;
  }

  .container {
    width: 23em;
    height: 23em;
    margin: 60px auto;
  }

  p {
    font-size: 15px;
    text-align: left;
  }

  button {
    width: 100p;
  }
}

@media only screen and (max-width: 400px) {
  .container {
    width: 20em;
    height: 20em;
  }
}