:root {

  --color-paper: #fafaf7;
  --color-ink: #263846;

  --color-muted: #5d6f7d;
  --color-line: #d7e0e5;
  --color-line-strong: rgba(32, 38, 34, 0.34);
  --color-mist: #eff5f7;
  --color-white: #fff;

  --color-portrait-tint: #e5f4ff;

  --font-ja: "Noto Sans JP", "Hiragino Sans", sans-serif;
  --font-en: "Outfit", "Noto Sans JP", sans-serif;

  --content-width: 129.6rem;

  --gutter: max(7.2rem, (100vw - 129.6rem) / 2);
  --header-height: 9.6rem;

  --space-section: 14.4rem;
  --space-block: 7.2rem;
  --space-group: 9.6rem;
  --space-sub: 4.8rem;
  --space-lead: 3.2rem;
}