.container {
  margin-inline: auto;
  inline-size: min(100% - var(--space-m), 75ch);
}

header > .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
}

nav,
header,
main,
footer {
  padding-block: var(--space-s);
}

.articles ul {
  display: grid;
  list-style: none;
  gap: var(--space-s);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 30ch), 1fr));
}

.articles li {
  border: 1px solid hsl(0 0% 50%);
  padding: var(--space-s);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.table-of-contents {
  margin-block-end: var(--space-s);
}