@import url("https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap");

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

html {
  font-size: 62.5%;
}

body {
  color: #eee;
  background-color: #222;
  font-family: "Press Start 2P", sans-serif;
  font-size: 2rem;
  min-height: 100vh;
}

.btn {
  background-color: #eee;
  color: #222;
  border: none;
  padding: 2rem 3rem;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}
.btn:hover {
  background-color: #ccc;
}

header {
  position: relative;
  height: 25rem;
  border-bottom: 0.7rem solid #eee;
  display: flex;
  justify-content: center;
  align-items: center;
}

h1 {
  font-size: 4rem;
  text-align: center;
}
.again {
  position: absolute;
  top: 2rem;
  left: 2rem;
}
.again.active {
  animation: play-again 1s infinite;
}
@keyframes play-again {
  0% {
    transform: scale(1, 1);
  }
  50% {
    transform: scale(1.1, 1.1);
  }
  100% {
    transform: scale(1, 1);
  }
}
.between {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 1.4rem;
}
.number {
  font-size: 6rem;
  color: #333;
  background-color: #eee;
  padding: 3rem 0rem;
  width: 15rem;
  text-align: center;
  position: absolute;
  bottom: 0;
  transform: translateY(50%);
}

main {
  display: flex;
  padding: 8rem 2rem;
  justify-content: space-around;
  align-items: center;
}

.left {
  text-align: center;
}
.guess {
  background: none;
  border: 0.4rem solid #eee;
  font-family: inherit;
  color: inherit;
  font-size: 5rem;
  padding: 2.5rem;
  width: 25rem;
  text-align: center;
  display: block;
  margin-bottom: 3rem;
}
.message {
  margin-bottom: 8rem;
}
.label-score {
  margin-bottom: 2rem;
}
footer {
  position: sticky;
  left: 0;
  top: 100%;
  width: 100%;
  text-align: center;
}
footer .copyright {
  padding-bottom: 2rem;
  font-size: 1.4rem;
}
footer .copyright a {
  color: aqua;
  text-decoration: none;
}
footer .copyright a:hover {
  filter: brightness(85%);
}

@media (max-width: 700px) {
  body {
    font-size: 1.6rem;
  }
  h1 {
    font-size: 3rem;
  }
  .guess {
    font-size: 3rem;
    width: 20rem;
    padding: 2rem;
  }
}
@media (max-width: 550px) {
  h1 {
    font-size: 5.5vw;
  }
  main {
    flex-direction: column;
    gap: 8rem;
  }
  .message {
    margin-bottom: 3rem;
  }
  .btn {
    font-size: 1.4rem;
  }
  header {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
    height: max-content;
    padding: 8rem 2rem;
  }
  .again {
    position: static;
  }
  .between {
    font-size: 1.2rem;
    position: static;
  }
  .guess {
    margin-bottom: 2rem;
  }
  footer .copyright {
    font-size: 1.2rem;
  }
}