:root {
  --bg: #FAF7F1;
  --ink: #26241F;
  --sub: #6E6A5F;
  --line: #E3DCCF;
  --ember: #A6431F;
  --serif: "Shippori Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  --sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
main { max-width: 720px; margin: 0 auto; padding: 0 20px 80px; }

/* 扉 */
.masthead { border-bottom: 1px solid var(--ink); padding: 44px 0 20px; }
.masthead h1 {
  font-family: var(--serif); font-weight: 600;
  font-size: 1.9rem; letter-spacing: .12em; margin: 0;
}
.masthead h1 a { color: inherit; }
.masthead .tagline { color: var(--sub); font-size: .82rem; margin: 8px 0 0; letter-spacing: .04em; }
.masthead .ember { color: var(--ember); }

/* 検索 */
.search { margin: 26px 0 6px; }
.search input {
  width: 100%; border: 0; border-bottom: 1px solid var(--line);
  background: transparent; padding: 6px 2px; font: inherit; color: var(--ink);
  letter-spacing: .04em;
}
.search input:focus { outline: none; border-bottom-color: var(--ember); }
.search input::placeholder { color: #B5AF9F; }
.search .hits { font-size: .78rem; color: var(--sub); min-height: 1.4em; margin-top: 4px; }

/* 目録 */
main.archive { max-width: 900px; }
.month { font-family: var(--serif); font-size: .95rem; letter-spacing: .18em;
  margin: 40px 0 14px; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
ol.roster { list-style: none; margin: 0 0 8px; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
ol.roster li { border: 1px solid var(--line); }
ol.roster a { display: flex; flex-direction: column; height: 100%; }
ol.roster a:hover .t { color: var(--ember); }
ol.roster a:hover .thumb-wrap { border-bottom-color: var(--ember); }
.roster .thumb-wrap { display: block; width: 100%; aspect-ratio: 16 / 9; overflow: hidden;
  border-bottom: 1px solid var(--line); background: var(--line); }
.roster .thumb { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.roster .meta { padding: 10px 12px 12px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.roster .d { font-variant-numeric: tabular-nums; color: var(--sub); font-size: .75rem; letter-spacing: .04em; }
.roster .t { font-size: .88rem; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 記事 */
article header { border-bottom: 1px solid var(--ink); padding: 40px 0 18px; margin-bottom: 26px; }
article h1 { font-family: var(--serif); font-weight: 600; font-size: 1.45rem;
  line-height: 1.7; letter-spacing: .04em; margin: 0 0 10px; }
.meta { color: var(--sub); font-size: .8rem; letter-spacing: .05em; }
article .body p { margin: 0 0 1.3em; }
article .figs { margin-bottom: 2em; }
article .figs figure { margin: 0 0 1em; }
article .body a { color: var(--ember); border-bottom: 1px solid var(--line); word-break: break-all; }
figure { margin: 2em 0; }
figure img { max-width: 100%; height: auto; border: 1px solid var(--line); display: block; cursor: zoom-in; }

/* 画像ビューア */
.lightbox { position: fixed; inset: 0; z-index: 100; display: none;
  align-items: center; justify-content: center; padding: 48px 20px;
  background: rgba(38, 36, 31, .94); }
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 100%; object-fit: contain; border: none; }
.lightbox .close { position: fixed; top: 18px; right: 20px; width: 40px; height: 40px;
  border: 1px solid rgba(250, 247, 241, .5); border-radius: 50%; background: transparent;
  color: var(--bg); font-size: 1.3rem; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center; }
.lightbox .close:hover { border-color: var(--ember); color: var(--ember); }
.backlinks { margin-top: 44px; padding-top: 14px; border-top: 1px solid var(--line);
  font-size: .84rem; display: flex; gap: 2em; }
.backlinks a { color: var(--ember); }

/* 奥付 */
.colophon { margin-top: 64px; padding-top: 18px; border-top: 1px solid var(--ink);
  font-size: .82rem; color: var(--sub); }
.colophon .links { margin-top: .5em; display: flex; gap: 1.6em; }
.colophon a { color: var(--ember); }