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

html {
  font-size: 62.5%;
  box-sizing: border-box;
}

body {
  font-family: 'Orbitron', sans-serif;
  color: #fff;
  background: linear-gradient(135deg, #2c2c54, #474787);
  height: 100vh;
  overflow: hidden;
}

/* HEADER */
header {
  position: relative;
  height: 40vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

h1 {
  font-size: 5rem;
  background: linear-gradient(90deg, #ff5722, #e91e63);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 2px;
}

h1 span {
  color: #ff007f;
}

.number {
  background: linear-gradient(135deg, #ff5722, #e91e63);
  color: #fff;
  font-size: 6rem;
  width: 12rem;
  padding: 2rem 0;
  text-align: center;
  border-radius: 2rem;
  box-shadow: 0 0 20px rgba(255, 87, 34, 0.7);
  margin-top: 2rem;
}

.between {
  font-size: 1.5rem;
  margin-top: 1rem;
  color: #ddd;
}

.again {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  padding: 1rem 2rem;
  font-size: 1.6rem;
  border: none;
  border-radius: 1rem;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(90deg, #ff5722, #e91e63);
  box-shadow: 0 0 10px rgba(233, 30, 99, 0.6);
  transition: all 0.3s;
}

.again:hover {
  transform: scale(1.1);
}


main {
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 60vh;
}

.left, .right {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.guess {
  background: transparent;
  border: 2px solid orange;
  border-radius: 0.8rem;
  padding: 1.5rem;
  width: 20rem;
  font-size: 2rem;
  color: #fff;
  margin-bottom: 2rem;
}

.check {
  padding: 1rem 2rem;
  font-size: 1.6rem;
  border: none;
  border-radius: 1rem;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(90deg, #ff5722, #e91e63);
  box-shadow: 0 0 10px rgba(233, 30, 99, 0.6);
  transition: all 0.3s;
}

.check:hover {
  transform: scale(1.1);
}

.message {
  font-size: 2rem;
  margin-bottom: 2rem;
}

.label-score, .label-highscore {
  font-size: 1.8rem;
  margin: 1rem 0;
}