* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px;
}

form {
  display: grid;
  gap: 16px;
}

form div {
  display: grid;
  gap: 6px;
}

input,
select,
textarea,
button {
  font: inherit;
  padding: 10px;
}

[hidden] {
  display: none !important;
}