:root { --bg: #f7f4ec; --paper: #fbf9f3; --fg: #262420; --muted: #8a8478; --rule: #d9d3c4; --grid: rgba(60, 70, 90, .06);
  --accent: #3b5b7a; --ink: #1f2a36; --quote: #efebdf;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", Georgia, "Times New Roman", serif;
  --sans: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", Menlo, Consolas, monospace; }
@media (prefers-color-scheme: dark) { :root { --bg: #15171a; --paper: #1a1d21; --fg: #e3e0d8; --muted: #8f8b82; --rule: #30343a;
  --grid: rgba(200, 210, 230, .045); --accent: #9db7d1; --ink: #e8e6e0; --quote: #1f2328; } }
* { box-sizing: border-box; }
html { font-size: 18px; background: var(--bg); }
body { margin: 0 auto; max-width: 35rem; padding: 3rem 1.4rem 5rem; background: var(--bg); color: var(--fg); font-family: var(--serif); line-height: 1.8;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 2.25rem 4.5rem; background-attachment: fixed; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
header.site { display: flex; flex-wrap: wrap; align-items: baseline; gap: .3rem 1rem; margin-bottom: 3rem; padding: 0 0 1rem; border-bottom: 1px solid var(--fg); position: relative; }
header.site::after { content: ""; position: absolute; left: 0; right: 0; bottom: -5px; border-bottom: 1px solid var(--rule); }
header.site .name { font-family: var(--sans); font-weight: 600; font-size: 1.35rem; letter-spacing: .12em; color: var(--ink); text-decoration: none; }
header.site .name::before { content: "間"; display: inline-block; margin-right: .5rem; padding: 0 .25rem; border: 1px solid var(--ink); font-size: .9rem; font-weight: 400; vertical-align: .15rem; letter-spacing: 0; }
header.site .tagline { color: var(--muted); font-size: .85rem; }
header.site nav { margin-left: auto; display: flex; gap: 1.1rem; font-family: var(--sans); font-size: .8rem; letter-spacing: .06em; }
header.site nav a { color: var(--muted); text-decoration: none; }
header.site nav a:hover { color: var(--accent); }
main { background: var(--paper); padding: 1.5rem 1.6rem 1rem; border: 1px solid var(--rule); }
h1 { font-family: var(--sans); font-size: 1.3rem; font-weight: 600; letter-spacing: .03em; color: var(--ink); margin: 0 0 .2rem; }
.meta { color: var(--muted); font-family: var(--mono); font-size: .72rem; margin: 0 0 1.8rem; letter-spacing: .04em; }
article p { margin: 0 0 1.15rem; }
article h2 { font-family: var(--sans); font-size: 1rem; margin: 2rem 0 .6rem; }
article ul, article ol { padding-left: 1.3rem; margin: 0 0 1.15rem; }
article li { margin-bottom: .3rem; }
blockquote { margin: 1.5rem 0; padding: .8rem 1.1rem; background: var(--quote); border-left: 2px solid var(--accent); }
blockquote p:last-child { margin: 0; }
pre { font-family: var(--mono); font-size: .82rem; line-height: 1.6; padding: .9rem 1.1rem; margin: 0 0 1.2rem; background: var(--quote); border: 1px dashed var(--rule); overflow-x: auto; }
.start { color: var(--muted); font-size: .9rem; margin: 0 0 1.5rem; }
h2.year { font-family: var(--mono); font-size: .75rem; font-weight: 400; letter-spacing: .2em; color: var(--accent); margin: 2rem 0 .4rem; padding-bottom: .3rem; border-bottom: 1px solid var(--rule); }
ul.posts { list-style: none; padding: 0; margin: 0; }
ul.posts li { display: flex; gap: 1.1rem; padding: .35rem 0; border-bottom: 1px dotted var(--rule); }
ul.posts time { color: var(--muted); font-family: var(--mono); font-size: .74rem; flex: 0 0 auto; padding-top: .25rem; }
ul.posts a { color: var(--fg); text-decoration: none; }
ul.posts a:hover { color: var(--accent); }
nav.pager { display: flex; justify-content: space-between; gap: 1rem; margin-top: 2.5rem; padding-top: 1rem; border-top: 1px solid var(--rule); font-family: var(--sans); font-size: .8rem; }
nav.pager a { color: var(--muted); text-decoration: none; max-width: 48%; }
nav.pager a:last-child { text-align: right; }
footer.site { margin-top: 3rem; color: var(--muted); font-family: var(--mono); font-size: .72rem; letter-spacing: .05em; }
@media (max-width: 480px) { main { padding: 1.1rem 1rem .5rem; } body { padding-top: 2rem; } }