body {
  font-family: system-ui, sans-serif;
  margin: 2rem;
  line-height: 1.5;
  color: #111827;
  background: #f9fafb;
}

main {
  max-width: 720px;
}

h1 {
  margin-bottom: 0.25rem;
}

nav {
  margin-bottom: 1rem;
}

nav a {
  margin-right: 1rem;
  color: #1f2937;
}

nav a:hover {
  text-decoration: underline;
}

.card {
  border: 1px solid #d1d5db;
  border-radius: 10px;
  padding: 1rem;
  margin: 1rem 0;
  background: #ffffff;
}

.card label {
  display: block;
  margin-top: 0.75rem;
}

.card label:first-child {
  margin-top: 0;
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin: 0.5rem 0;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

input[type="range"] {
  width: 100%;
  margin-top: 0.35rem;
}