:root {
  color-scheme: light;
  --ink: #172321;
  --muted: #65716e;
  --paper: #ffffff;
  --soft: #f2f5f2;
  --line: #d9e0dc;
  --pine: #176b5b;
  --pine-dark: #0f4f43;
  --gold: #c58a24;
  --coral: #c75b4f;
  --max: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0;
}

a { color: var(--pine-dark); text-underline-offset: 0.2em; }
a:hover { color: var(--coral); }
img { display: block; max-width: 100%; height: auto; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
}

.header-inner {
  width: min(calc(100% - 40px), var(--max));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: var(--pine);
  color: #fff;
  font-family: Georgia, serif;
  font-size: 22px;
  font-weight: 700;
}

.brand strong, .brand small { display: block; }
.brand strong { font-size: 15px; line-height: 1.35; }
.brand small { color: var(--muted); font-size: 11px; }
.header-inner nav a { font-size: 14px; font-weight: 700; text-decoration: none; }

.intro-band {
  min-height: 330px;
  display: grid;
  align-items: end;
  background:
    linear-gradient(110deg, rgba(15, 79, 67, 0.94), rgba(23, 107, 91, 0.82)),
    url("/media/2020/06/IMG_5809.jpg") center 44% / cover;
  color: #fff;
}

.intro-inner {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 72px 0 62px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.intro-band .eyebrow { color: #f4c66b; }
.intro-band h1 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(34px, 6vw, 62px); line-height: 1.18; }
.intro-band p:last-child { max-width: 620px; margin: 20px 0 0; font-size: 17px; }

.archive {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 64px 0 88px;
}

.archive-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 22px;
  border-bottom: 2px solid var(--ink);
}

.archive-heading h2 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-size: 32px; line-height: 1.25; }
.search-box { width: min(100%, 360px); }
.search-box span { display: block; margin-bottom: 5px; color: var(--muted); font-size: 12px; font-weight: 700; }
.search-box input {
  width: 100%;
  height: 44px;
  border: 1px solid #aab6b1;
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
  padding: 0 13px;
  font: inherit;
}
.search-box input:focus { outline: 3px solid rgba(23, 107, 91, 0.18); border-color: var(--pine); }
.result-count { margin: 18px 0 0; color: var(--muted); font-size: 13px; }

.post-list { margin-top: 8px; }
.post-row {
  display: grid;
  grid-template-columns: 184px minmax(0, 1fr);
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.post-row:not(:has(.post-thumb)) { grid-template-columns: 1fr; }
.post-thumb { aspect-ratio: 4 / 3; overflow: hidden; border-radius: 4px; background: var(--soft); }
.post-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 180ms ease; }
.post-thumb:hover img { transform: scale(1.025); }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 9px 14px; color: var(--muted); font-size: 12px; }
.category-list { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.category-list span { padding: 2px 7px; border-left: 3px solid var(--gold); background: var(--soft); color: #394440; }
.post-row h2 { margin: 8px 0 6px; font-size: 21px; line-height: 1.45; }
.post-row h2 a { color: var(--ink); text-decoration: none; }
.post-row h2 a:hover { color: var(--pine); }
.post-row p { margin: 0; color: #4b5753; font-size: 14px; }
.no-results { padding: 40px 0; color: var(--muted); }

.article-main { width: min(calc(100% - 40px), 850px); margin: 0 auto; padding: 38px 0 88px; }
.breadcrumb { display: flex; gap: 8px; overflow: hidden; color: var(--muted); font-size: 12px; white-space: nowrap; }
.breadcrumb a { flex: 0 0 auto; }
.breadcrumb span:last-child { overflow: hidden; text-overflow: ellipsis; }
.article-header { padding: 48px 0 34px; border-bottom: 1px solid var(--line); }
.article-header h1 { margin: 14px 0 0; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(30px, 5vw, 46px); line-height: 1.4; overflow-wrap: anywhere; }
.article-body { padding-top: 38px; font-size: 17px; }
.article-body h2 { margin: 2.5em 0 0.8em; padding-left: 14px; border-left: 5px solid var(--pine); font-size: 26px; line-height: 1.45; }
.article-body h3 { margin: 2.1em 0 0.7em; font-size: 21px; line-height: 1.5; }
.article-body p { margin: 1.2em 0; }
.article-body ul, .article-body ol { padding-left: 1.5em; }
.article-body li { margin: 0.45em 0; }
.article-body img { margin: 28px auto; border-radius: 4px; }
.article-body figure { margin: 32px 0; }
.article-body figcaption { margin-top: 8px; color: var(--muted); font-size: 13px; text-align: center; }
.article-body blockquote { margin: 28px 0; padding: 8px 22px; border-left: 4px solid var(--gold); background: var(--soft); color: #35413d; }
.article-body table { display: block; width: 100%; overflow-x: auto; border-collapse: collapse; font-size: 14px; }
.article-body th, .article-body td { padding: 9px 12px; border: 1px solid var(--line); text-align: left; }
.article-body iframe { width: 100%; max-width: 100%; border: 0; }
.article-body a { overflow-wrap: anywhere; }
.reference-link a { display: inline-flex; padding: 8px 12px; border: 1px solid var(--line); border-radius: 4px; background: var(--soft); font-size: 14px; font-weight: 700; }
.article-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin-top: 64px; background: var(--line); border: 1px solid var(--line); }
.article-nav a { min-height: 108px; padding: 20px; background: #fff; color: var(--ink); text-decoration: none; }
.article-nav a:hover { background: var(--soft); }
.article-nav small, .article-nav strong { display: block; }
.article-nav small { margin-bottom: 6px; color: var(--muted); }
.article-nav strong { line-height: 1.5; }

.message-page { width: min(calc(100% - 40px), 700px); min-height: 65vh; margin: 0 auto; padding: 100px 0; }
.message-page h1 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-size: 40px; }
.button-link { display: inline-block; margin-top: 20px; padding: 10px 18px; border-radius: 4px; background: var(--pine); color: #fff; font-weight: 700; text-decoration: none; }
.button-link:hover { background: var(--pine-dark); color: #fff; }

.site-footer { border-top: 1px solid var(--line); background: var(--soft); }
.site-footer p { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 26px 0; color: var(--muted); font-size: 12px; }

@media (max-width: 720px) {
  .header-inner { min-height: 68px; }
  .brand small { display: none; }
  .intro-band { min-height: 290px; }
  .intro-inner { padding: 54px 0 44px; }
  .intro-band p:last-child { font-size: 15px; }
  .archive { padding: 48px 0 64px; }
  .archive-heading { display: block; }
  .search-box { width: 100%; margin-top: 24px; }
  .post-row { grid-template-columns: 108px minmax(0, 1fr); gap: 16px; padding: 22px 0; }
  .post-row h2 { font-size: 17px; }
  .post-row p { display: none; }
  .category-list { display: none; }
  .article-main { padding-top: 24px; }
  .article-header { padding: 34px 0 26px; }
  .article-body { padding-top: 26px; font-size: 16px; }
  .article-body h2 { font-size: 22px; }
  .article-nav { grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
  .header-inner, .intro-inner, .archive, .article-main, .site-footer p { width: min(calc(100% - 28px), var(--max)); }
  .brand strong { max-width: 190px; font-size: 13px; }
  .header-inner nav { display: none; }
  .intro-band h1 { font-size: 35px; }
  .post-row { grid-template-columns: 92px minmax(0, 1fr); }
}