* {
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, sans-serif;
  margin: 24px auto;
  max-width: 90%;
}
input, select, button {
  font-size: 14px;
  padding: 8px;
  margin: 4px auto;
  width: 100%;
  box-sizing: border-box;
}
.card {
  border: 1px solid lightgray;
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 12px;
}
label {
  font-weight: bold;
  display: block;
  margin-top: 8px;
}
.hint {
  color: #666;
  font-size: 13px;
}