:root {
  color-scheme: light;
  --ink: #20201e;
  --muted: #6b6a66;
  --paper: #f7f5f2;
  --accent: #1f3864;
  --line-green: #06c755;
  --line-green-dark: #049a41;
  --rule: #e7e3dd;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
}
* { box-sizing: border-box; }
html { background: var(--paper); scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); }
.reader { width: min(100%, 720px); margin: 0 auto; background: #fff; min-height: 100vh; }
.manga-pages { list-style: none; margin: 0; padding: 0; }
.manga-page { margin: 0; padding: 0; }
.page-art { position: relative; width: 100%; margin: 0; overflow: hidden; background: #fff; line-height: 0; }
.page-art img { display: block; width: 100%; height: auto; }
.closing { padding: 36px 24px 44px; border-top: 1px solid var(--rule); text-align: center; background: #f4f7fa; }
.closing-kicker { margin: 0 0 10px; color: var(--accent); font-size: 13px; font-weight: 700; letter-spacing: .06em; }
.closing-sub { margin: 0 0 16px; color: var(--muted); font-size: 12px; line-height: 1.6; }
h2 { margin: 0; font-size: clamp(21px, 5.2vw, 30px); line-height: 1.5; }
.closing-price { margin: 12px 0 0; font-size: 15px; font-weight: 700; line-height: 1.7; }
.closing-price span { color: var(--muted); font-size: 12px; font-weight: 400; }
.closing-howto { margin: 20px auto; padding: 14px 16px; width: min(100%, 430px); border: 2px solid var(--line-green); border-radius: 8px; background: #fff; font-size: 16px; line-height: 1.7; }
.closing-howto strong { display: block; color: var(--line-green-dark); font-size: min(16px, 3.7vw); white-space: nowrap; }
.cta { display: inline-flex; align-items: center; justify-content: center; min-height: 58px; width: min(100%, 430px); padding: 14px 22px; border-radius: 8px; color: #fff; background: var(--line-green); font-weight: 750; font-size: clamp(17px, 4.2vw, 19px); text-decoration: none; box-shadow: 0 5px 0 var(--line-green-dark); transition: transform .15s ease, box-shadow .15s ease; }
.cta:hover { transform: translateY(2px); box-shadow: 0 3px 0 var(--line-green-dark); }
.cta:focus-visible { outline: 3px solid #e39b27; outline-offset: 4px; }
.fiction { margin: 14px 0 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.cta + .fiction { margin-top: 28px; }
.loading { padding: 30px; text-align: center; color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .cta { transition: none; } }
.pack-detail { margin: 22px auto 0; width: min(100%, 520px); text-align: left; background: #fff; border: 1px solid var(--rule); border-radius: 8px; }
.pack-detail div { display: grid; grid-template-columns: 4.5em 1fr; gap: 10px; padding: 12px 14px; }
.pack-detail div + div { border-top: 1px solid var(--rule); }
.pack-detail dt { color: var(--accent); font-weight: 750; font-size: 14px; line-height: 1.7; }
.pack-detail dd { margin: 0; font-size: 14px; line-height: 1.7; }
.pack-ask { margin: 14px 0 0; font-size: 14px; font-weight: 700; color: var(--line-green-dark); line-height: 1.6; }
.pack-lead { margin: 14px auto 0; width: min(100%, 520px); font-size: 14px; line-height: 1.75; text-align: left; }
.pack-steps { margin: 18px auto 0; padding: 12px 14px 12px 2.2em; width: min(100%, 520px); text-align: left; background: #fff; border: 1px solid var(--rule); border-radius: 8px; font-size: 14px; line-height: 1.7; }
.pack-steps li + li { margin-top: 4px; }