:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #171a20;
  --muted: #626a76;
  --line: #dfe3e8;
  --accent: #1e293b;
  --max: 72rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { background: var(--bg); color: var(--text); }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.7; }
a { color: inherit; text-underline-offset: .18em; }
a:focus-visible, button:focus-visible { outline: 3px solid #315efb; outline-offset: 3px; }
.shell { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.skip-link { position: absolute; left: 1rem; top: -8rem; background: #fff; padding: .7rem 1rem; z-index: 1000; }
.skip-link:focus { top: 1rem; }
.site-header { border-bottom: 1px solid var(--line); background: rgba(255,255,255,.96); }
.site-header__inner { min-height: 4.75rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.site-brand { display: inline-flex; flex-direction: column; gap: .1rem; text-decoration: none; }
.site-brand__name { font-weight: 760; letter-spacing: .03em; font-size: 1.2rem; }
.site-brand__descriptor { color: var(--muted); font-size: .72rem; }
.site-nav__list, .site-nav ul { display: flex; gap: 1.2rem; list-style: none; margin: 0; padding: 0; }
.site-nav a { text-decoration: none; font-size: .9rem; }
.hero { padding: clamp(4rem, 9vw, 7rem) 0; background: var(--surface); border-bottom: 1px solid var(--line); }
.hero__inner { max-width: 62rem; }
.hero h1 { font-size: clamp(2.4rem, 7vw, 5rem); line-height: 1.08; letter-spacing: -.045em; margin: .25rem 0 1.25rem; }
.hero__lead { max-width: 44rem; color: var(--muted); font-size: clamp(1rem, 2vw, 1.25rem); }
.eyebrow { margin: 0; color: var(--muted); font-size: .72rem; font-weight: 760; letter-spacing: .16em; }
.section { padding: 4rem 0; }
.section-heading { margin-bottom: 1.75rem; }
.section-heading h2 { margin: .25rem 0 0; font-size: clamp(1.6rem, 4vw, 2.35rem); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1rem; list-style: none; margin: 0; padding: 0; }
.card { border: 1px solid var(--line); border-radius: .8rem; background: var(--surface); }
.card__link { min-height: 9rem; display: flex; flex-direction: column; justify-content: space-between; padding: 1.15rem; text-decoration: none; }
.card__label { color: var(--muted); font-size: .72rem; font-weight: 700; letter-spacing: .08em; }
.card__path { font-weight: 650; overflow-wrap: anywhere; }
.data-state { border: 1px dashed #a9b0ba; border-radius: .8rem; background: var(--surface); padding: 1.5rem; }
.data-state strong { letter-spacing: .08em; font-size: .78rem; }
.data-state p { color: var(--muted); margin-bottom: 0; }
.content-shell { max-width: 50rem; }
.entry { background: var(--surface); border: 1px solid var(--line); border-radius: .8rem; padding: clamp(1.2rem, 4vw, 2.2rem); }
.entry + .entry { margin-top: 1rem; }
.entry__title { margin-top: 0; line-height: 1.25; }
.site-footer { border-top: 1px solid var(--line); padding: 2rem 0; color: var(--muted); background: var(--surface); }
.site-footer__inner { display: flex; justify-content: space-between; gap: 2rem; align-items: flex-start; }
.site-footer p { margin: 0; font-size: .78rem; }
@media (max-width: 44rem) {
  .site-header__inner, .site-footer__inner { align-items: flex-start; flex-direction: column; padding-block: 1rem; }
  .site-nav__list, .site-nav ul { flex-wrap: wrap; gap: .6rem 1rem; }
}