:root {
  color-scheme: light;
  --ink: #121212;
  --paper: #f8f8f6;
  --blue: #145ad8;
  --line: #121212;
  --muted: #5c5c5c;
  --content: 74rem;
}

* { box-sizing: border-box; }

html { background: var(--paper); }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Space Grotesk", "Arial", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a { color: inherit; }

a:focus-visible {
  outline: 4px solid var(--blue);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  left: 1rem;
  top: -5rem;
  padding: .75rem 1rem;
  background: #fff;
  border: 3px solid var(--ink);
  font: 700 .8rem/1 "JetBrains Mono", monospace;
  text-decoration: none;
}

.skip-link:focus { top: 1rem; }

.site-header {
  border-bottom: 6px solid var(--line);
  background: #fff;
}

.header-inner,
.page-shell {
  width: min(100% - 2.5rem, var(--content));
  margin: 0 auto;
}

.header-inner {
  min-height: 5.25rem;
  display: flex;
  gap: 1.25rem;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: .7rem;
  font-family: "Montserrat Alternates", Arial, sans-serif;
  font-weight: 900;
  letter-spacing: -.07em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-mark { font-size: clamp(1.25rem, 3vw, 1.6rem); }

.brand-divider {
  display: inline-block;
  width: .55rem;
  height: .55rem;
  background: var(--blue);
}

.brand-subtitle {
  color: var(--muted);
  font: 700 .69rem/1.2 "JetBrains Mono", monospace;
  letter-spacing: .05em;
}

.home-link {
  font: 700 .72rem/1.2 "JetBrains Mono", monospace;
  letter-spacing: .04em;
  text-underline-offset: .2em;
  text-transform: uppercase;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3.5rem, 9vw, 7.5rem) 0 clamp(2.5rem, 6vw, 5rem);
  border-bottom: 6px solid var(--line);
  background: #fff;
}

.hero::after {
  position: absolute;
  right: clamp(-4rem, -5vw, -1rem);
  bottom: clamp(-5.5rem, -7vw, -3rem);
  width: clamp(13rem, 31vw, 25rem);
  height: clamp(13rem, 31vw, 25rem);
  border: clamp(1.25rem, 3vw, 2.5rem) solid var(--blue);
  border-radius: 50%;
  content: "";
}

.eyebrow,
.section-kicker {
  margin: 0 0 1.1rem;
  color: var(--blue);
  font: 700 .75rem/1.35 "JetBrains Mono", monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
}

h1,
h2,
p { margin-top: 0; }

h1,
h2 { font-family: "Montserrat Alternates", Arial, sans-serif; }

h1 {
  position: relative;
  z-index: 1;
  max-width: 17ch;
  margin-bottom: 1.6rem;
  font-size: clamp(2.35rem, 6vw, 5.3rem);
  font-weight: 900;
  letter-spacing: -.075em;
  line-height: .94;
}

.lead {
  position: relative;
  z-index: 1;
  max-width: 47rem;
  margin-bottom: 0;
  font-size: clamp(1.07rem, 2vw, 1.35rem);
  line-height: 1.5;
}

.info-section,
.documentation { padding: clamp(2.75rem, 6vw, 5rem) 0; }

.info-section { border-bottom: 6px solid var(--line); }

h2 {
  margin-bottom: 1.75rem;
  font-size: clamp(1.85rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -.065em;
  line-height: .95;
  text-transform: uppercase;
}

.metadata {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  border-top: 4px solid var(--line);
  border-left: 4px solid var(--line);
}

.metadata > div {
  min-height: 10.4rem;
  padding: clamp(1.15rem, 2.5vw, 2rem);
  border-right: 4px solid var(--line);
  border-bottom: 4px solid var(--line);
  background: #fff;
}

.metadata > div:nth-child(2) { background: var(--blue); color: #fff; }

dt {
  margin-bottom: 1rem;
  font: 700 .7rem/1.35 "JetBrains Mono", monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

dd {
  margin: 0;
  font-family: "Montserrat Alternates", Arial, sans-serif;
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.2;
}

.document-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 6px solid var(--line);
  background: var(--ink);
  color: #fff;
  box-shadow: 12px 12px 0 var(--blue);
}

.document-card h2 { margin-bottom: .7rem; }

.document-card p {
  max-width: 43rem;
  margin-bottom: 0;
  color: #e4e4e4;
}

.document-link {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  min-width: 15.5rem;
  justify-content: space-between;
  padding: 1.1rem 1.25rem;
  border: 4px solid #fff;
  background: #fff;
  color: var(--ink);
  font-family: "Montserrat Alternates", Arial, sans-serif;
  font-weight: 900;
  letter-spacing: -.035em;
  line-height: 1.1;
  text-decoration: none;
  transition: background .16s ease, color .16s ease, transform .16s ease;
}

.document-link:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
  transform: translate(-4px, -4px);
}

.document-link svg { flex: 0 0 auto; }

.file-note {
  margin: 1.75rem 0 0;
  color: var(--muted);
  font: 400 .72rem/1.45 "JetBrains Mono", monospace;
}

.site-footer {
  padding: 2rem 0;
  background: var(--ink);
  color: #fff;
}

.footer-inner {
  width: min(100% - 2.5rem, var(--content));
  margin: 0 auto;
  font: 400 .7rem/1.5 "JetBrains Mono", monospace;
  letter-spacing: .04em;
  text-transform: uppercase;
}

@media (max-width: 700px) {
  .header-inner,
  .page-shell,
  .footer-inner { width: min(100% - 2rem, var(--content)); }
  .brand-subtitle { display: none; }
  .hero::after { display: none; }
  .metadata { grid-template-columns: 1fr; }
  .metadata > div { min-height: auto; }
  .document-card { grid-template-columns: 1fr; gap: 1.5rem; box-shadow: 8px 8px 0 var(--blue); }
  .document-link { min-width: 0; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}