@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@100;400&display=swap");

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

body {
  max-width: 50rem;
  min-width: 320px;
  margin: 0 auto;
  text-align: center;
  background: rgb(94, 0, 134);
  font-family: "Roboto", sans-serif;
  padding: 10px;
  color: white;
}

main {
  display: flex;
  flex-flow: column;
  min-height: 100vh;
  min-height: 100dvh;
  max-width: 100vw;
}
article {
  flex: 1;
}

article h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

section span {
  max-width: 90px;
  height: 50px;
  cursor: pointer;
}
.btn {
  max-width: 30%;
}
.gbinfo {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 0 1 300px;
}
.gbinfo > :first-child {
  font-size: 10rem;
  flex: 1;
}

#gb {
  width: 700px;
}

.gbinfo > :not(:first-child) {
  font-weight: bold;
  font-size: 1.3rem;
  text-transform: uppercase;
}

span:active {
  color: green;
}
span:hover {
  color: brown;
}

#price {
  font-family: monospace;
  font-size: 2rem;
  color: white;
}

section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 40vh;
}

.feather {
  width: 50px;
  height: 50px;
}

footer {
  height: 40px;
}
nav button {
  width: 80%;
  margin-top: 40px;
  background: none;
  border: 2px solid white;
  border-radius: 5px;
  padding: 9px 15px;
  cursor: pointer;
  font-weight: bold;
  color: white;
  font-size: 16px;
}

button:hover {
  color: seagreen;
}