body {
  margin: 0 auto;
  padding: 0 1rem 2rem;
  max-width: 44rem;
  font-family: system-ui, sans-serif;
  line-height: 1.6;
  color: #1b1b1b;
  background: #fff;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid #ccc;
}

nav a {
  color: #1f4e79;
  text-decoration: none;
}

nav a[aria-current="page"] {
  font-weight: 700;
  text-decoration: underline;
}

h1 {
  font-size: 1.4rem;
  margin: 1.25rem 0 1rem;
}

.error {
  color: #b00020;
}

.notice {
  color: #1f4e79;
}

form {
  margin: 1rem 0;
}

label {
  display: block;
  margin-top: 0.75rem;
  font-weight: 600;
}

input,
textarea,
select {
  box-sizing: border-box;
  width: 100%;
  margin-top: 0.25rem;
  font: inherit;
  padding: 0.4rem;
}

textarea {
  min-height: 8rem;
}

button {
  font: inherit;
  padding: 0.4rem 1rem;
}

pre,
.body {
  white-space: pre-wrap;
  word-break: break-word;
}

footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #ccc;
}