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

:root {
  --background-color: #2F2E41;
  --primary-color: #00BFA6;
  --secondary-color: #C2C2C2;
  --white: #FFFFFF;

  font-size: 62.5%; /* 1rem = 10px (o padrão seria 16px) */
}

body {
  background: var(--background-color);

  font-size: 1.6rem;
  text-align: center;
  color: var(--white);

  min-height: 100vh;

  max-width: 109.2rem;
  width: 80%;
  margin: 0 auto; /* centralizar conteúdo */
  padding-top: 7.1rem;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;

  font-family: 'JetBrains Mono';
  font-size: 1.4rem;
  font-weight: medium;

  margin: auto;
}

ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 6.4rem;
  
}

a {
  font-family: 'JetBrains Mono';
  font-size: 1.4rem;
  font-weight: medium;
  text-decoration: none;
  color: var(--white);

}

main {
  display: flex;
  align-items: center;
  gap: 77px;

  padding-top: 10.1rem;
}

main h1 {
  font-family: 'JetBrains Mono';
  font-weight: bold;
  font-size: 3.6rem;
  line-height: 4rem;

  padding-bottom: 5.9rem;
}

main p {
  font-family: 'Open Sans';
  font-weight: 400;
  line-height: 2.8rem;
  color: var(--secondary-color);
}

main span.primary-color {
  color: var(--primary-color);
}

main span.bold {
  font-weight: bold;
}

footer {
  font-family: 'JetBrains Mono';
  font-weight: medium;
  font-size: 1.4rem;
}

footer .line {
  margin: 15.7rem 35.6rem 0;
  border-bottom: 1px solid var(--primary-color);
}

footer p {
  margin-top: 2.7rem;
}

#locker {
  position: fixed;
  bottom: 20px;
  left: 20px;
}