:root {
  --border-color: #ddd;
}

body {
  font-family: system-ui, sans-serif;
  margin: 0;
  color: #222;
}

header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border-color);
}

header img {
  display: block;
  height: 40px;
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

nav a {
  text-decoration: none;
  color: #222;
  font-weight: 500;
}

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

main {
  max-width: 60rem;
  margin: 0 auto;
  padding: 2rem;
}

table {
  border-collapse: collapse;
  width: 100%;
}

th,
td {
  text-align: left;
  padding: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

footer {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0.25rem 2rem 1rem;
  border-top: 1px solid var(--border-color);
  color: #666;
  font-size: 0.875rem;
}

@media print {
  nav {
    display: none;
  }

  a {
    color: inherit;
    text-decoration: none;
  }
}