/* アトリエ・モノ: paper, ink, bordeaux accent; square corners, hairlines, Mincho headings. */
:root {
  --paper: #f7f5f0;
  --ink: #111111;
  --muted: #6b675f;
  --rule: #d9d5cc;
  --accent: #7a1f1f;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  --sans: "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #111111; --ink: #f7f5f0; --muted: #a29d93; --rule: #2e2c29; --accent: #d06a60; }
}
* { box-sizing: border-box; }
html { background: var(--paper); color: var(--ink); }
body { margin: 0; font: 16px/1.85 var(--sans); }
.masthead, main, footer { max-width: 720px; margin: 0 auto; padding: 0 24px; }
.masthead { padding-top: 32px; padding-bottom: 16px; border-bottom: 1px solid var(--ink); }
.brand { font: 600 28px/1 var(--serif); color: var(--ink); text-decoration: none; letter-spacing: 0.02em; }
.dot { display: inline-block; width: 0.18em; height: 0.18em; margin-left: 0.06em; border-radius: 50%; background: var(--accent); }
main { padding-top: 40px; padding-bottom: 56px; }
.overline { margin: 0; font: 12px/1 var(--serif); letter-spacing: 0.3em; color: var(--muted); }
h1 { margin: 12px 0 28px; font: 600 30px/1.4 var(--serif); }
h2 { margin: 40px 0 12px; padding-top: 16px; border-top: 0.5px solid var(--rule); font: 600 19px/1.5 var(--serif); }
p, ul, address { margin: 0 0 14px; }
ul { padding-left: 1.4em; }
address { font-style: normal; margin-top: 40px; }
a { color: var(--ink); text-underline-offset: 3px; }
strong { font-weight: 700; }
.date { color: var(--muted); font-size: 14px; }
footer { padding-top: 16px; padding-bottom: 40px; border-top: 0.5px solid var(--rule); color: var(--muted); font-size: 12px; letter-spacing: 0.1em; }