/* 作品集。読むことが主役なので、余白を広く取り、色は紙と墨に寄せる。 */
:root {
  --ink: #1B1D21;
  --dim: #4A4F57;
  --note: #7C838C;
  --line: #E2E0DA;
  --bg: #FBFAF7;
  --card: #FFFFFF;
  --accent: #8C4A2F;
  --max: 1080px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Zen Kaku Gothic New", system-ui, -apple-system, "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.9;
  font-size: 16px;
}
a { color: inherit; }
img { max-width: 100%; display: block; }

.site-header {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 16px 20px; border-bottom: 1px solid var(--line); background: var(--card);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand-mark { font-family: "Zen Antique", serif; font-size: 20px; letter-spacing: .08em; }
.brand-name { font-size: 12px; color: var(--note); }
.site-nav { margin-left: auto; display: flex; gap: 16px; font-size: 13px; }
.site-nav a { color: var(--dim); text-decoration: none; border-bottom: 1px solid transparent; }
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }

.container { max-width: var(--max); margin: 0 auto; padding: 40px 20px 64px; }
.loading, .empty { color: var(--note); text-align: center; padding: 64px 0; }

.page-head { margin-bottom: 36px; }
.util {
  display: inline-block; font-size: 11px; letter-spacing: .12em; color: var(--note);
  border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; margin-right: 8px;
}
.page-head h1 {
  font-family: "Zen Antique", serif; font-weight: 400; font-size: clamp(24px, 5vw, 36px);
  line-height: 1.5; margin: 14px 0 0;
}
.lead { color: var(--dim); font-size: 15px; margin: 14px 0 0; max-width: 40em; }

.work-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 28px; }
.work-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
  display: flex; flex-direction: column;
}
.work-cover { display: block; background: #EFEDE7; }
.work-cover img { width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; }
.work-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.work-title {
  font-family: "Zen Antique", serif; font-size: 18px; line-height: 1.6; text-decoration: none;
}
.work-title:hover { color: var(--accent); }
.work-sub { margin: 0; font-size: 13px; color: var(--note); }
.work-summary { margin: 0; font-size: 14px; color: var(--dim); }
.work-meta { margin: 0; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.work-actions { margin: auto 0 0; display: flex; flex-wrap: wrap; gap: 10px; padding-top: 6px; }

.btn {
  display: inline-block; text-decoration: none; font-size: 14px; padding: 9px 18px; border-radius: 6px;
  background: var(--ink); color: #fff; border: 1px solid var(--ink);
}
.btn:hover { background: #000; }
.btn.ghost { background: transparent; color: var(--dim); border-color: var(--line); }
.btn.ghost:hover { color: var(--ink); border-color: var(--ink); }
.amazon-cta { font-size: 13px; color: var(--accent); }

.back-link { display: inline-block; font-size: 13px; color: var(--note); text-decoration: none; margin-bottom: 20px; }
.back-link:hover { color: var(--ink); }

.pages { display: flex; flex-direction: column; align-items: center; gap: 28px; margin-top: 32px; }
.page-sheet { width: 100%; max-width: 760px; }
.page-sheet img { width: 100%; border: 1px solid var(--line); border-radius: 4px; background: #fff; }
.page-no { display: block; text-align: center; font-size: 11px; color: var(--note); margin-top: 8px; letter-spacing: .1em; }

.after {
  margin-top: 56px; padding: 28px 24px; background: var(--card);
  border: 1px solid var(--line); border-radius: 10px;
}
.after h2 { font-family: "Zen Antique", serif; font-weight: 400; font-size: 20px; margin: 0 0 10px; }
.after p { margin: 0 0 14px; color: var(--dim); font-size: 15px; }
.read-foot { text-align: center; margin-top: 32px; font-size: 14px; }

.site-foot {
  border-top: 1px solid var(--line); padding: 28px 20px 48px; text-align: center;
  color: var(--note); font-size: 13px; background: var(--card);
}
.foot-links { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; margin-top: 10px; }

@media (max-width: 600px) {
  .container { padding: 28px 16px 48px; }
  .work-grid { grid-template-columns: 1fr; gap: 22px; }
  .pages { gap: 20px; }
}