:root {
  --cream: #F5EEDC;
  --cream-deep: #EFE5CC;
  --cocoa: #3B2615;
  --cocoa-soft: #6B4E33;
  --mustard: #D9A520;
  --mustard-bright: #E8BB3C;
  --gold-pale: #F6DFA0;
  --line: rgba(59, 38, 21, 0.18);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--cream); }
body {
  font-family: 'Space Grotesk', 'Noto Sans JP', system-ui, sans-serif;
  color: var(--cocoa);
}
.wrap { max-width: 720px; margin: 0 auto; padding-left: 40px; padding-right: 40px; }

header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 40px;
  background: rgba(245, 238, 220, 0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.logo { font-weight: 700; font-size: 17px; letter-spacing: 0.02em; color: inherit; text-decoration: none; }
.logo .plus { color: var(--mustard); }
nav { display: flex; gap: 32px; }
nav a {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cocoa-soft);
  text-decoration: none;
}
nav a:hover { color: var(--cocoa); }

.article-head { padding: 72px 0 40px; }
.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cocoa-soft);
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 20px;
}
.eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--mustard);
  display: inline-block;
}
h1.article-title {
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.6;
  font-weight: 700;
  margin: 0 0 20px;
}
.article-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cocoa-soft);
}
.eyecatch { margin-bottom: 8px; }
.eyecatch img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
  display: block;
}

article { padding: 8px 0 80px; }
article p {
  font-size: 16px;
  line-height: 2;
  margin: 0 0 28px;
  color: var(--cocoa);
}
article h2 {
  font-size: clamp(21px, 2.6vw, 26px);
  font-weight: 700;
  line-height: 1.6;
  margin: 56px 0 28px;
}
article h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.6;
  margin: 36px 0 20px;
}
article h3.lede { font-size: 16px; color: var(--cocoa); }
article ul, article ol { margin: 0 0 28px; padding-left: 1.4em; }
article li { font-size: 16px; line-height: 1.9; margin-bottom: 8px; }
article figure { margin: 36px 0; }
article img { width: 100%; display: block; border-radius: 4px; }
article figcaption {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cocoa-soft);
  margin-top: 10px;
  text-align: center;
}
article hr { border: none; border-top: 1px solid var(--line); margin: 36px 0; }
article a { color: var(--cocoa); text-decoration: underline; text-decoration-color: var(--mustard); }
article blockquote {
  margin: 36px 0;
  padding: 4px 28px;
  border-left: 3px solid var(--mustard);
  color: var(--cocoa-soft);
}
article blockquote p { margin: 0 0 16px; }
article blockquote p:last-child { margin-bottom: 0; }

.highlight-box {
  background: #FFF5DA;
  border-radius: 6px;
  padding: 32px;
  margin: 36px 0;
}
.highlight-box p:last-child { margin-bottom: 0; }
.highlight-box figure { margin: 0 0 28px; }

.callout {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 20px;
  align-items: start;
  background: var(--cream-deep);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 28px;
  margin: 36px 0;
}
.callout img { width: 96px; height: 96px; object-fit: cover; border-radius: 50%; }
.callout .callout-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cocoa-soft);
  margin: 0 0 10px;
}
.callout p { font-size: 14px; line-height: 1.9; margin: 0 0 10px; }
.callout p:last-child { margin-bottom: 0; }

.closing {
  text-align: center;
  padding: 100px 40px;
  background: var(--cocoa);
  color: var(--cream);
}
.closing h2 { font-size: clamp(22px, 3.2vw, 30px); font-weight: 700; margin: 0 0 32px; line-height: 1.6; }
.cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cocoa);
  background: var(--mustard-bright);
  border: 1px solid var(--mustard-bright);
  border-radius: 999px;
  padding: 14px 28px;
  text-decoration: none;
}

footer {
  padding: 40px;
  text-align: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cocoa-soft);
}

/* ---------- news index ---------- */
.news-list { display: flex; flex-direction: column; }
.news-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
}
.news-list .news-item:last-child { border-bottom: 1px solid var(--line); }
.news-item .news-thumb {
  width: 120px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}
.news-item .news-date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cocoa-soft);
  display: block;
  margin-bottom: 8px;
}
.news-item h2 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.6;
  margin: 0;
}
@media (max-width: 560px) {
  .news-item { grid-template-columns: 80px 1fr; }
  .news-item .news-thumb { width: 80px; }
}
.news-item:hover h2 { color: var(--cocoa-soft); }

@media (max-width: 640px) {
  header { padding: 16px 20px; }
  nav { display: none; }
  .wrap { padding-left: 20px; padding-right: 20px; }
  .callout { grid-template-columns: 1fr; text-align: center; }
  .callout img { margin: 0 auto; }
}