@charset "UTF-8";

:root {
  color-scheme: light;
  --ink: #203b36;
  --muted: #5b675f;
  --pine: #173f37;
  --paper: #f5f4ee;
  --line: #d9ded4;
  --accent: #b55b32;
  --page-width: 1400px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Arial, Helvetica, sans-serif; font-size: 16px; line-height: 1.6; }
a { color: inherit; text-underline-offset: 5px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
img { display: block; width: 100%; height: auto; }
h1, h2, h3, p { margin-top: 0; }
.wrap { width: min(var(--page-width), calc(100% - 80px)); margin-inline: auto; }
.skip-link { position: absolute; top: -100px; left: 20px; z-index: 5; padding: 12px 18px; background: white; color: var(--ink); }
.skip-link:focus { top: 12px; }

.site-header { width: 100%; background: var(--pine); color: #fff; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; min-height: 104px; }
.brand { display: inline-flex; align-items: center; gap: 13px; text-decoration: none; flex-shrink: 0; }
.brand-mark { width: 38px; height: 44px; }
.brand-name { display: block; font-family: Georgia, 'Times New Roman', serif; font-size: 25px; font-weight: 700; line-height: 1.2; }
.brand-tagline { display: block; margin-top: 5px; color: #c5d5cc; font-size: 12px; letter-spacing: .055em; }
nav { display: flex; align-items: center; gap: 30px; font-size: 14px; }
nav a { text-decoration: none; padding-block: 10px; }
nav a:hover { text-decoration: underline; }
nav .nav-start { border: 1px solid #6e8a7c; border-radius: 4px; padding: 9px 18px; }

.intro { display: grid; grid-template-columns: 1.35fr 1fr; gap: 72px; align-items: center; padding-block: 58px 48px; }
.eyebrow { margin-bottom: 13px; font-size: 11px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
h1 { max-width: 760px; margin-bottom: 20px; font-family: Georgia, 'Times New Roman', serif; font-weight: 400; font-size: clamp(36px, 3.2vw, 51px); line-height: 1.12; letter-spacing: -.03em; }
.intro-copy { max-width: 660px; margin-bottom: 0; color: var(--muted); font-size: 17px; line-height: 1.7; }
.guide-note { border-left: 3px solid #b8c8b6; padding-left: 28px; }
.guide-note h2 { margin-bottom: 15px; font-size: 15px; font-weight: 700; }
.three-cases { margin: 0; }
.three-cases div { display: grid; grid-template-columns: 178px 1fr; gap: 12px; margin-top: 10px; font-size: 13px; line-height: 1.5; }
.three-cases dt { font-weight: 700; }
.three-cases dd { margin: 0; color: var(--muted); }

.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; padding-top: 26px; margin-bottom: 22px; border-top: 1px solid var(--line); }
.section-heading h2 { margin-bottom: 0; font-family: Georgia, 'Times New Roman', serif; font-size: 27px; font-weight: 400; letter-spacing: -.02em; }
.section-heading p { margin: 0; color: var(--muted); font-size: 12px; }
.section-number { font-family: Arial, Helvetica, sans-serif; font-size: 11px; color: var(--accent); vertical-align: middle; margin-right: 12px; letter-spacing: .05em; }
.article-row { display: grid; gap: 22px; margin-bottom: 22px; }
.row-two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.row-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.topic-card { position: relative; display: grid; grid-template-columns: 148px minmax(0, 1fr); align-content: start; column-gap: 22px; row-gap: 15px; padding: 26px; background: #fff; border: 1px solid var(--line); border-radius: 5px; scroll-margin-top: 22px; }
.topic-card img { aspect-ratio: 1; border-radius: 3px; object-fit: cover; }
.card-copy { min-width: 0; }
.topic-label { color: var(--accent); margin-bottom: 7px; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; }
.topic-card h3 { margin-bottom: 10px; font-size: 22px; font-family: Georgia, 'Times New Roman', serif; font-weight: 400; line-height: 1.25; letter-spacing: -.015em; }
.card-copy > p:last-child { margin-bottom: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.row-three .topic-card { grid-template-columns: 100px minmax(0, 1fr); gap: 16px; padding: 22px; }
.row-three .topic-card h3 { font-size: 21px; }
.row-three .topic-card img { margin-top: 3px; }
.topic-card details { grid-column: 1 / -1; border-top: 1px solid #e8ebe4; padding-top: 12px; font-size: 13px; }
.topic-card summary { cursor: pointer; width: fit-content; font-weight: 700; color: var(--pine); padding: 3px 0; }
.topic-card summary:hover { text-decoration: underline; text-underline-offset: 4px; }
.topic-card details dl { margin: 14px 0 0; }
.topic-card details dt { margin-top: 12px; font-weight: 700; }
.topic-card details dd { margin: 3px 0 0; color: var(--muted); }
.publication-note { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin: 31px 0 50px; padding: 20px 24px; border-radius: 4px; background: #e8ece2; }
.publication-note p { margin: 0; font-size: 14px; }
.publication-note span { color: var(--muted); }
.publication-note a { flex-shrink: 0; font-size: 13px; }

.site-footer { width: 100%; background: var(--pine); color: #fff; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 116px; padding-block: 24px; }
.footer-title { margin-bottom: 5px; font-family: Georgia, 'Times New Roman', serif; font-size: 21px; }
.footer-copy { margin-bottom: 0; font-size: 12px; color: #c5d5cc; }
.footer-meta { text-align: right; font-size: 12px; color: #c5d5cc; }
.footer-meta p { margin-bottom: 5px; }

/* Mid-size screens get their own readable two-column layout. */
@media (min-width: 761px) and (max-width: 1100px) {
  .wrap { width: calc(100% - 48px); }
  .intro { gap: 32px; grid-template-columns: 1.15fr 1fr; }
  .three-cases div { display: block; }
  .three-cases dd { margin-top: 2px; }
  .row-three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .row-three .topic-card:last-child { grid-column: 1 / -1; }
  .topic-card, .row-three .topic-card { grid-template-columns: 96px minmax(0, 1fr); gap: 16px; padding: 20px; }
  .header-inner { gap: 20px; }
  nav { gap: 18px; }
}

/* Phone layout: compact header, short introduction and one full-width cell per row. */
@media (max-width: 760px) {
  html { scroll-padding-top: 16px; }
  .wrap { width: calc(100% - 36px); }
  .header-inner { flex-direction: column; align-items: flex-start; gap: 12px; padding-block: 22px 14px; min-height: 0; }
  .brand { gap: 10px; }
  .brand-mark { width: 30px; height: 36px; }
  .brand-name { font-size: 23px; }
  .brand-tagline { font-size: 10px; letter-spacing: .025em; }
  nav { width: 100%; gap: 20px; justify-content: space-between; flex-wrap: wrap; font-size: 12px; border-top: 1px solid #49665a; padding-top: 8px; }
  nav a { padding-block: 8px; }
  nav .nav-start { border: 0; border-radius: 0; padding: 8px 0; }
  .intro { display: block; padding-block: 34px 28px; }
  .eyebrow { font-size: 10px; margin-bottom: 12px; }
  h1 { max-width: 500px; font-size: 35px; line-height: 1.15; margin-bottom: 17px; }
  .intro-copy { font-size: 15px; line-height: 1.7; }
  .guide-note { margin-top: 26px; padding-left: 17px; border-left-width: 2px; }
  .guide-note h2 { margin-bottom: 12px; font-size: 14px; }
  .three-cases div { display: block; margin-top: 10px; font-size: 12px; }
  .three-cases dd { margin-top: 2px; }
  .section-heading { display: block; margin-bottom: 17px; padding-top: 23px; }
  .section-heading h2 { font-size: 24px; }
  .section-heading p { margin-top: 5px; }
  .article-row, .row-two, .row-three { grid-template-columns: minmax(0, 1fr); gap: 16px; margin-bottom: 16px; }
  .topic-card, .row-three .topic-card { grid-template-columns: 90px minmax(0, 1fr); gap: 15px; padding: 20px 17px 15px; }
  .topic-card img, .row-three .topic-card img { margin-top: 1px; }
  .topic-card h3, .row-three .topic-card h3 { font-size: 22px; }
  .topic-label { font-size: 9px; margin-bottom: 6px; }
  .card-copy > p:last-child { font-size: 13px; line-height: 1.65; }
  .topic-card details { padding-top: 10px; font-size: 12px; }
  .publication-note { display: block; padding: 18px; margin: 25px 0 32px; }
  .publication-note p { font-size: 13px; }
  .publication-note a { display: inline-block; margin-top: 10px; }
  .footer-inner { display: block; padding-block: 29px; }
  .footer-meta { text-align: left; margin-top: 18px; }
}

@media (max-width: 359px) {
  .wrap { width: calc(100% - 28px); }
  nav { gap: 12px; font-size: 11px; }
  h1 { font-size: 31px; }
  .topic-card, .row-three .topic-card { grid-template-columns: 70px minmax(0, 1fr); gap: 12px; padding-inline: 14px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  body { background: #fff; }
  .wrap { width: 100%; }
  nav, .skip-link, .publication-note a { display: none; }
  .site-header, .site-footer { color: #000; background: #fff; }
  .intro { padding-block: 20px; }
  .topic-card { break-inside: avoid; }
  .article-row { display: block; }
  .topic-card { margin-bottom: 14px; }
}