body {
  font-family: system-ui, Arial, sans-serif;
  margin: 2rem auto;
  max-width: 1100px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;

  padding: 0.8rem 1.2rem;
  margin-bottom: 1.6rem;

  background-color: #f3f5f7; /* very light slate */
  border-bottom: 1px solid #d6dbe0;
}

nav a {
  margin-right: 1rem;
}

.row {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.muted {
  color: #666;
}

.counts {
  white-space: nowrap;
}

.section {
  margin-top: 1.5rem;
}

.section h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.6rem;

  padding-bottom: 0.2rem;
  border-bottom: 1px solid #ddd;
  color: #333;
}

.list {
  margin: 0.2rem 0 0.8rem;
  padding-left: 1.2rem;
}