:root {
  color-scheme: dark;
  --dark: #151712;
  --ink: #21231c;
  --paper: #f1f0e8;
  --lime: #c8ff46;
  --light: #f6f6ec;
  --muted: #b7bbad;
  --line: #3b4134;
  --mono: ui-monospace, Menlo, Consolas, monospace;
  font: 16px/1.5 system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--dark); color: var(--light); }
h1, h2, p, figure, ol, ul { margin: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid currentColor; outline-offset: 5px; }
.wrap { width: min(100% - 96px, 1320px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: fixed; z-index: 5; left: 14px; top: 10px; padding: 10px; transform: translateY(-150%); background: var(--lime); color: var(--dark); }
.skip:focus { transform: none; }

.header { border-bottom: 1px solid var(--line); }
.header-inner, .header-actions, .footer { display: flex; align-items: center; }
.header-inner, .footer { justify-content: space-between; gap: 20px; }
.header-inner { min-height: 78px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.14rem; letter-spacing: -.04em; white-space: nowrap; }
.brand-accent { color: var(--lime); }
.header-actions { gap: 24px; font-size: .88rem; font-weight: 650; }
.header-external:hover, .footer > a:last-child:hover { color: var(--lime); }
.language { position: relative; z-index: 2; }
.language summary { display: flex; align-items: center; gap: 8px; padding: 8px 11px; cursor: pointer; border: 1px solid var(--line); border-radius: 5px; list-style: none; }
.language summary::-webkit-details-marker { display: none; }
.language summary::after { content: "⌄"; margin-left: 3px; color: var(--muted); }
.language ul { position: absolute; top: calc(100% + 8px); right: 0; min-width: 158px; padding: 6px; list-style: none; border: 1px solid var(--line); border-radius: 5px; background: #20241a; box-shadow: 0 12px 24px #0005; }
.language li a { display: block; padding: 7px 11px; border-radius: 3px; }
.language li a:hover, .language li a[aria-current] { background: var(--lime); color: var(--dark); }

.hero { display: grid; grid-template-columns: 1fr 1.04fr; gap: clamp(28px, 4vw, 66px); align-items: center; padding-block: clamp(50px, 6vw, 92px); }
.eyebrow { display: flex; align-items: center; gap: 10px; font: 700 .75rem/1.45 var(--mono); letter-spacing: .13em; }
.signal { width: 8px; height: 8px; flex: 0 0 8px; background: var(--lime); }
.hero h1 { margin-block: 17px 20px; font-size: clamp(3rem, 6.25vw, 6.45rem); line-height: .94; letter-spacing: -.083em; font-weight: 850; }
.hero h1 span { display: block; color: var(--lime); }
.intro { max-width: 47ch; color: var(--muted); font-size: clamp(1rem, 1.3vw, 1.16rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 27px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 12px 16px; border: 1px solid transparent; border-radius: 5px; font-size: .91rem; font-weight: 750; }
.button span { flex: 0 0 auto; }
.primary { background: var(--lime); color: var(--dark); }
.primary:hover { background: #dbff8a; }
.primary:focus-visible { outline-color: var(--lime); }
.outline { border-color: #51564b; }
.outline:hover { border-color: var(--lime); color: var(--lime); }
.hero-image { background: #20241d; border: 1px solid #45493e; border-radius: 6px; overflow: hidden; }
.hero-image img { width: 100%; height: auto; }
.hero-image figcaption { display: flex; justify-content: space-between; gap: 10px; padding: 11px 14px; color: #dbddd0; font: 700 .68rem/1.4 var(--mono); letter-spacing: .07em; border-top: 1px solid #45493e; }

.index { background: var(--paper); color: var(--ink); scroll-margin-top: 16px; }
.index-inner { padding-block: 48px 52px; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 24px 35px; }
.index .signal { background: #556624; }
.index h2 { margin-block: 8px; font-size: clamp(2.05rem, 4vw, 3.4rem); line-height: 1.07; letter-spacing: -.058em; }
.index-heading > p:last-child { max-width: 62ch; color: #4d5146; }
.picker { display: flex; gap: 8px; align-items: stretch; }
.picker select { width: clamp(160px, 19vw, 245px); min-width: 0; padding: 11px; color-scheme: light; color: var(--ink); background: #fffef8; border: 1px solid #a8aa9c; border-radius: 5px; font: 650 .92rem/1.4 system-ui, sans-serif; }
.category-button { background: var(--dark); color: var(--light); }
.category-button:hover { background: #343c29; }
.category-button:focus-visible { outline-color: var(--ink); }
.category-list { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 28px; padding: 0; list-style: none; }
.category-list li { border-top: 1px solid #cccfc0; }
.category-list li:nth-last-child(-n+2) { border-bottom: 1px solid #cccfc0; }
.category-list a { display: grid; grid-template-columns: 36px minmax(0, 1fr) 20px; align-items: center; gap: 8px; min-height: 52px; padding: 9px 8px; font-weight: 680; }
.category-list a:hover { background: #dff2ab; }
.number, .arrow { color: #4f5b3d; font: 700 .78rem/1 var(--mono); }
.arrow { text-align: right; }
.field-note { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(170px, .35fr) 1fr; align-items: baseline; gap: 20px; margin-top: 10px; padding: 20px; border-left: 3px solid #728747; background: #e6e8db; }
.field-note h2 { margin: 0; font-size: 1.13rem; letter-spacing: -.025em; }
.field-note p { max-width: 74ch; color: #414638; }
.footer { min-height: 92px; font-size: .86rem; color: var(--muted); }
.footer .brand { color: var(--light); }
.missing { padding-block: 80px; }
.missing h1 { margin-bottom: 20px; }

@media (max-width: 960px) {
  .wrap { width: calc(100% - 56px); }
  .index-inner { grid-template-columns: 1fr; }
  .picker select { width: min(48vw, 280px); }
}
@media (max-width: 700px) {
  .wrap { width: calc(100% - 36px); }
  .header-inner { min-height: 65px; }
  .header-external { display: none; }
  .hero { grid-template-columns: 1fr; gap: 30px; padding-block: 37px; }
  .hero h1 { font-size: clamp(2.9rem, 10.4vw, 4.7rem); }
  .index-inner { padding-block: 34px; gap: 18px; }
  .category-list, .field-note { grid-template-columns: 1fr; }
  .category-list li:nth-last-child(2) { border-bottom: 0; }
  .field-note { gap: 8px; }
  .footer { padding-block: 22px; flex-wrap: wrap; }
}