:root {
  --pico-font-family-sans-serif: "Segoe UI", Tahoma, "Noto Sans Thai", sans-serif;
  --pico-font-family: var(--pico-font-family-sans-serif);
}
body > header, body > main, body > footer { padding-block: 1rem; }
.site-nav strong { white-space: nowrap; }
.narrow { max-width: 26rem; margin-inline: auto; }
.error-box { color: var(--pico-del-color); }