html {
  box-sizing: border-box;
  font-size: 62.5%; /* font-size: 10px; */
  scroll-behavior: smooth;
}

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

body {
  font-size: 1.6rem;
  line-height: 1.6;
  overflow-x: hidden;
  height: 100vh;
  background-color: #141627;
  font-family: "Roboto", sans-serif;
  position: relative;
  user-select: none;
}

.back {
  width: 7rem;
  height: 3rem;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.5rem 1rem;
  background-color: brown;
  border-radius: 1rem;
  position: absolute;
  top: 1rem;
  left: 1rem;
}

.back a {
  color: white;
}

.container {
  width: 100%;
  height: 80vh;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Reset Style */
a {
  text-decoration: none;
}

.box {
  width: 40rem;
  border-radius: 1rem;
  border: 0.2rem solid rgb(5, 243, 243);
  text-align: center;
  padding: 2rem;
}

.result {
  font-size: 2rem;
  font-weight: bold;
  display: block;
  margin-bottom: 2rem;
  color: rgb(255, 255, 255);
}

.increase,
.decrease {
  display: inline-block;
  border-radius: 1rem;
  border: 0.2rem solid rgb(5, 243, 243);
  padding: 1rem 1.5rem;
  margin: 1rem 2rem;
  color: rgb(36, 175, 66);
  cursor: pointer;
  font-weight: 700;
}

.increase:hover {
  border-color: rgb(36, 175, 66);
  background-color: rgb(36, 175, 66);
  color: #141627;
  font-weight: 700;
}

.decrease:hover {
  border-color: rgb(161, 36, 47);
  background-color: rgb(161, 36, 47);
  color: #141627;
}

.decrease {
  color: rgb(161, 36, 47);
}

.reset {
  width: 4rem;
  height: 4rem;
  font-weight: 700;
  display: inline-block;
  border: 0.2rem solid rgb(5, 243, 243);
  color: rgb(255, 255, 255);
  border-radius: 50%;
  padding: 0.8rem;
  cursor: pointer;
}

.reset:hover {
  background-color: rgb(255, 255, 255);
  color: #141627;
}

@media (max-width: 425px) {
  .increase,
  .decrease,
  .reset {
    display: block;
    cursor: none;
  }

  .reset {
    margin: 0 auto;
  }
}