:root {
  color-scheme: light;
  --paper: #f5f4ed;
  --white: #fffefa;
  --ink: #202a24;
  --muted: #506056;
  --forest: #173d30;
  --lime: #dcf3a8;
  --soft: #edf2e6;
  --line: #d4dbcf;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--forest); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: .13em; }
:focus-visible { outline: 3px solid #54772a; outline-offset: 4px; }
h1, h2, h3 { color: var(--forest); line-height: 1.15; text-wrap: balance; }
p { margin: 0 0 1em; }
.skip {
  position: fixed;
  z-index: 1;
  top: .5rem;
  left: .5rem;
  padding: .5rem .8rem;
  background: var(--white);
  transform: translateY(-200%);
}
.skip:focus { transform: none; }

.site-header { border-bottom: 1px solid var(--line); }
.site-bar, .home, .document { width: min(100% - 2rem, 72rem); margin: 0 auto; }
.site-bar {
  min-height: 4.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .2rem 1.25rem;
}
.brand, .site-nav { display: flex; align-items: center; }
.brand {
  gap: .6rem;
  min-height: 44px;
  color: var(--forest);
  font-weight: 800;
  text-decoration: none;
}
.mark {
  display: grid;
  grid-template-columns: repeat(2, 5px);
  gap: 3px;
  padding: 7px;
  border-radius: 7px;
  background: var(--forest);
}
.mark i { width: 5px; height: 5px; border-radius: 1px; background: var(--lime); }
.site-nav { gap: 0 .25rem; flex-wrap: wrap; }
.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 .55rem;
  font-size: .88rem;
  font-weight: 650;
  text-decoration: none;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { text-decoration: underline; }
.site-nav a[aria-current="page"] { text-decoration-thickness: .13em; }

.home { padding: clamp(2rem, 6vw, 4rem) 0 3.5rem; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(1.5rem, 5vw, 4rem);
  background: var(--forest);
  color: var(--white);
  padding: clamp(1.5rem, 6vw, 4rem);
  border-radius: 1.25rem;
}
.eyebrow {
  margin: 0 0 .65rem;
  color: var(--muted);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.hero .eyebrow { color: var(--lime); }
.hero h1 {
  margin: 0 0 .75rem;
  color: var(--white);
  font-size: clamp(2.75rem, 7vw, 5.25rem);
  letter-spacing: -.065em;
  text-wrap: initial;
}
.hero h1 span { color: var(--lime); }
.lede { font-size: clamp(1.08rem, 2.5vw, 1.28rem); }
.hero .lede { max-width: 38ch; color: #e3ece1; }
.button {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  min-height: 48px;
  padding: .5rem 1rem;
  border-radius: .55rem;
  color: var(--forest);
  background: var(--lime);
  font-weight: 800;
  text-decoration: none;
}
.game-links { display: flex; flex-wrap: wrap; gap: .55rem; }
.button.secondary { color: var(--white); background: transparent; border: 1px solid #89a798; }
.button:hover { text-decoration: underline; }
.hero .button:focus-visible { outline-color: var(--white); }
.sample {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .45rem;
  padding: clamp(.65rem, 2vw, 1.1rem);
  border: 1px solid #547666;
  border-radius: .9rem;
}
.sample-label {
  padding-left: .15rem;
  color: #e3ece1;
  font-size: .71rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.sample-card {
  display: grid;
  place-items: center;
  min-height: 3.3rem;
  background: #e6f0db;
  color: var(--forest);
  border-radius: .45rem;
  font-size: clamp(1.05rem, 3vw, 1.65rem);
  font-weight: 800;
  white-space: nowrap;
}
.reading { margin-top: 2.3rem; }
.reading h2 { margin: 0 0 1rem; font-size: 1.65rem; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.resource {
  padding: clamp(1.15rem, 3.5vw, 1.8rem);
  border: 1px solid var(--line);
  border-radius: .85rem;
  background: var(--white);
}
.resource h3 { margin: 0 0 .6rem; font-size: 1.35rem; }
.resource p:last-child { margin: 0; color: var(--muted); }

.document { padding: clamp(2rem, 5vw, 3.75rem) 0 3rem; }
.doc-header { border-bottom: 1px solid var(--line); margin: 0 0 1.6rem; padding-bottom: 1.3rem; }
.doc-header h1 {
  max-width: 24ch;
  margin: 0 0 .7rem;
  font-size: clamp(2.15rem, 5.5vw, 3.8rem);
  letter-spacing: -.045em;
}
.doc-header .lede, .doc-header .meta { color: var(--muted); margin: .4rem 0 0; }
.meta { font-size: .88rem; }
.doc-layout { display: grid; grid-template-columns: 13.3rem minmax(0, 1fr); gap: clamp(1.35rem, 4vw, 2.8rem); }
.toc { align-self: start; border: 1px solid var(--line); border-radius: .65rem; background: var(--white); }
.toc details { padding: .8rem 1rem; }
.toc summary { color: var(--forest); font-weight: 750; cursor: pointer; }
.toc ul { margin: .45rem 0 0; padding: 0 0 0 1.1rem; }
.toc li { margin: .18rem 0; font-size: .87rem; line-height: 1.45; }
.doc-body { min-width: 0; }
.doc-body h2 { margin: 2.2rem 0 .8rem; font-size: clamp(1.7rem, 4vw, 2.25rem); }
.doc-body h3 { margin: 1.35rem 0 .65rem; font-size: 1.2rem; }
.doc-body h2, .doc-body h3 { scroll-margin-top: .75rem; }
.doc-body h2:first-child, .doc-body h3:first-child { margin-top: 0; }
.doc-body p { max-width: 73ch; }
.doc-body .note { color: var(--muted); font-size: .9rem; }
.doc-body .example { color: var(--forest); font-size: 1.12rem; }
.doc-body blockquote {
  margin: 0 0 1rem;
  padding-left: 1rem;
  border-left: 3px solid #93a78d;
  color: var(--forest);
}
.doc-body blockquote p { margin: 0; }
.table-scroll {
  max-width: 100%;
  overflow-x: auto;
  margin: .75rem 0 1rem;
  border: 1px solid var(--line);
  border-radius: .5rem;
  background: var(--white);
}
table { width: 100%; border-collapse: collapse; font-size: .91rem; line-height: 1.45; }
.wide-table { min-width: 35rem; }
th, td {
  padding: .48rem .65rem;
  text-align: left;
  vertical-align: middle;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
thead th { color: var(--forest); background: #e6eee5; font-weight: 750; }
tr > :last-child { border-right: 0; }
tbody tr:last-child > * { border-bottom: 0; }
.numeric { text-align: center; font-variant-numeric: tabular-nums; }
.tint { background: var(--soft); }
.doc-body .back { margin: 2rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line); }

@media (max-width: 49rem) {
  .doc-layout { grid-template-columns: minmax(0, 1fr); }
  .toc { max-width: none; }
  .table-scroll table { min-width: 25rem; }
  .table-scroll .wide-table { min-width: 35rem; }
}
@media (max-width: 40rem) {
  .site-bar { padding: .25rem 0; }
  .site-nav { margin-left: -.55rem; }
  .hero, .card-grid { grid-template-columns: minmax(0, 1fr); }
  .sample { max-width: 22rem; }
}

@media print {
  body { background: white; }
  .site-header, .toc, .skip, .back { display: none; }
  .document { width: 100%; padding: 0; }
  .doc-layout { display: block; }
  .table-scroll { overflow: visible; }
  .table-scroll table { min-width: 0; }
  thead { display: table-header-group; }
  tr { break-inside: avoid; }
}