:root {
  color-scheme: light;
  --ink: #14271f;
  --muted: #506258;
  --green: #173b30;
  --pine: #0e2a22;
  --paper: #f8f6ed;
  --sand: #efece0;
  --line: #d6dbce;
  --gold: #e9b662;
  --white: #fffdf5;
  --wrap: 1200px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.85 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  overflow-wrap: anywhere;
}
img { display: block; max-width: 100%; height: auto; }
a { color: #226248; text-underline-offset: .2em; }
a:hover { color: #854814; }
a:focus-visible, summary:focus-visible { outline: 3px solid #a5571b; outline-offset: 4px; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { line-height: 1.38; letter-spacing: .015em; }
h1 { font-size: clamp(2rem, 4vw, 3.4rem); }
h2 { font-size: clamp(1.35rem, 2.7vw, 2.25rem); }
h3 { font-size: 1.08rem; }
.wrap { width: min(var(--wrap), calc(100% - 56px)); margin-inline: auto; }
.skip {
  position: fixed;
  inset: 8px auto auto 8px;
  z-index: 10;
  padding: 8px 14px;
  background: white;
  transform: translateY(-150%);
}
.skip:focus { transform: none; }
.site-header { position: relative; z-index: 2; border-bottom: 1px solid var(--line); background: var(--paper); }
.head-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-size: 1.05rem; font-weight: 800; white-space: nowrap; }
.brand img { border-radius: 8px; }
.nav-list { list-style: none; display: flex; flex-wrap: wrap; gap: 20px; margin: 0; padding: 0; }
.nav-list a { display: block; padding: 8px 0; color: var(--ink); font-size: .86rem; font-weight: 700; text-decoration: none; }
.nav-list a:hover, .nav-list [aria-current="page"] { text-decoration: underline; text-decoration-color: #ac6634; }
.mobile-nav { display: none; }
.hero-home { background: var(--pine); color: var(--white); }
.hero-home .hero-grid { min-height: 520px; display: grid; grid-template-columns: .93fr 1.07fr; gap: 44px; align-items: center; padding-block: 54px; }
.hero-home h1 { font-size: clamp(2.45rem, 5.5vw, 5rem); line-height: 1.17; letter-spacing: .025em; }
.hero-home p:not(.eyebrow) { color: #e5eee3; margin-top: 22px; max-width: 37ch; }
.hero-home .eyebrow { color: var(--gold); }
.hero-home img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 18px; }
.eyebrow { margin-bottom: 10px; color: #80501c; font-size: .78rem; font-weight: 800; letter-spacing: .15em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
.cta { display: inline-flex; align-items: center; gap: 8px; min-height: 46px; padding: 7px 16px; background: var(--gold); color: var(--pine); border: 1px solid var(--gold); border-radius: 8px; font-weight: 800; font-size: .9rem; text-decoration: none; }
.cta:hover { background: var(--white); color: var(--pine); }
.cta.secondary { color: var(--white); background: transparent; border-color: #769488; }
.cta.secondary:hover { background: var(--green); }
.home-section { padding-block: 47px; }
.section-head { display: flex; align-items: end; justify-content: space-between; flex-wrap: wrap; gap: 12px 28px; margin-bottom: 22px; }
.section-head p:not(.eyebrow) { color: var(--muted); margin-top: 10px; }
.band { background: var(--sand); }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card {
  display: flex;
  flex-direction: column;
  background: #fffdf7;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  color: var(--ink);
  text-decoration: none;
  transition: transform .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); border-color: #6f8d7c; color: var(--ink); }
.card img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; background: var(--green); }
.card-copy { display: block; padding: 16px 19px 19px; }
.card-copy strong { display: block; font-size: 1.05rem; line-height: 1.45; }
.card-copy small { display: block; margin-top: 8px; color: var(--muted); font-size: .86rem; line-height: 1.7; }
.breadcrumb { padding-block: 17px 8px; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 5px 12px; list-style: none; padding: 0; margin: 0; font-size: .81rem; }
.breadcrumb li + li::before { content: "›"; margin-right: 12px; color: var(--muted); }
.article-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: center; padding-block: 22px 33px; }
.article-hero .intro { margin-top: 15px; color: var(--muted); }
.article-hero img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 14px; }
.article-hero figcaption, .reference figcaption { font-size: .77rem; color: var(--muted); margin-top: 5px; }
.article-body { width: min(760px, 100%); margin-inline: auto; padding-block: 22px 43px; }
.article-body p + p, .article-body ul + p { margin-top: 1em; }
.article-body section { padding-block: 25px 14px; scroll-margin-top: 14px; }
.article-body section h2 { margin-bottom: 13px; font-size: clamp(1.3rem, 2.7vw, 1.83rem); }
.article-body ul { margin: .7em 0; padding-left: 1.35em; }
.article-body li + li { margin-top: .35em; }
.toc { background: var(--sand); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin-bottom: 6px; }
.toc summary { font-weight: 800; cursor: pointer; }
.toc ol { margin: 8px 0 0; padding-left: 1.5em; font-size: .92rem; }
.reference { margin-block: 25px 9px; width: fit-content; max-width: 100%; }
.reference img { max-height: 290px; object-fit: contain; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.ad-block { width: min(760px, 100%); margin: 28px auto; }
.ad-block ins { display: block; }
.ad-block:has(ins[data-ad-status="unfilled"]) { display: none; }
.related { border-top: 1px solid var(--line); padding-block: 35px 50px; }
.site-footer { background: var(--pine); color: #e7eee6; padding-block: 34px; }
.site-footer .brand, .site-footer a { color: var(--white); }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-block: 14px; font-size: .87rem; }
.site-footer small { color: #c0d3c9; }
.fade-in { animation: appear .55s ease both; }
@keyframes appear { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@media (max-width: 940px) {
  .desktop-nav { display: none; }
  .mobile-nav { display: block; }
  .mobile-nav summary {
    width: 46px;
    height: 46px;
    display: grid;
    place-content: center;
    gap: 5px;
    list-style: none;
    cursor: pointer;
    border: 1px solid var(--line);
    border-radius: 8px;
  }
  .mobile-nav summary::-webkit-details-marker { display: none; }
  .mobile-nav summary span { width: 21px; height: 2px; border-radius: 2px; background: var(--ink); }
  .mobile-nav[open] .nav-list {
    position: absolute;
    top: 100%;
    inset-inline: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 18px;
    padding: 15px 22px 20px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 18px #0e2a2220;
    background: var(--paper);
  }
  .mobile-nav a { min-height: 42px; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .wrap { width: calc(100% - 32px); }
  .head-inner { min-height: 63px; }
  .hero-home .hero-grid { min-height: auto; grid-template-columns: 1fr; gap: 26px; padding-block: 32px 25px; }
  .hero-home p:not(.eyebrow) { margin-top: 16px; }
  .article-hero { grid-template-columns: 1fr; gap: 17px; padding-block: 14px 16px; }
  .home-section { padding-block: 32px; }
  .article-body { padding-top: 12px; }
  .cards { gap: 13px; }
  .card-copy { padding: 12px; }
  .card-copy strong { font-size: .95rem; }
}
@media (max-width: 470px) {
  .cards { grid-template-columns: 1fr; }
  .cta-row { margin-top: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}
.article-subtitle {
  display: block;
  margin-top: 9px;
  color: var(--green);
  font-size: .62em;
  font-weight: 700;
  line-height: 1.5;
}
.card, .article-body section {
  transition: opacity .45s ease, transform .45s ease, border-color .2s ease;
}
.reveal-pending {
  opacity: 0;
  transform: translateY(12px);
}
@media (prefers-reduced-motion: reduce) {
  .reveal-pending { opacity: 1; transform: none; }
}
@media (max-width: 470px) {
  .head-inner { gap: 12px; }
  .brand { gap: 8px; font-size: clamp(.82rem, 3.8vw, 1.05rem); }
  .brand img { width: 28px; height: 28px; }
}