:root {
  --paper: #f5f3ee;
  --ink: #1a1a1a;
  --muted: #5c5c5c;
  --crimson: #c41e3a;
  --surface: #ffffff;
  --border: 2px solid var(--ink);
  --shadow: 4px 4px 0 var(--ink);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
}

a {
  color: var(--crimson);
}

a:hover {
  text-decoration: none;
}

.site-header {
  border-bottom: var(--border);
  background: var(--surface);
  padding: 1.25rem 1.5rem;
}

.site-header-inner {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  font-family: "Courier New", Courier, monospace;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--ink);
}

.nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
}

.nav a:hover,
.nav a.active {
  color: var(--crimson);
}

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.hero {
  background: var(--surface);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 2rem;
  margin-bottom: 2rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  letter-spacing: 0.04em;
}

.tagline {
  font-family: "Courier New", Courier, monospace;
  color: var(--muted);
  margin: 0;
  font-size: 0.95rem;
}

.card-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  display: block;
  background: var(--surface);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.5rem;
  text-decoration: none;
  color: inherit;
  transition: transform 0.12s ease;
}

.card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink);
}

.card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.doc h1 {
  margin-top: 0;
  font-size: 2rem;
}

.doc h2 {
  margin-top: 2rem;
  font-size: 1.25rem;
  border-bottom: 1px solid #d8d4cb;
  padding-bottom: 0.35rem;
}

.doc h3 {
  margin-top: 1.25rem;
  font-size: 1.05rem;
}

.doc p,
.doc li {
  color: var(--ink);
}

.doc ul,
.doc ol {
  padding-left: 1.25rem;
}

.meta {
  font-family: "Courier New", Courier, monospace;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.callout {
  background: var(--surface);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

.callout strong {
  display: block;
  margin-bottom: 0.35rem;
}

.button {
  display: inline-block;
  background: var(--crimson);
  color: #fff;
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 0.75rem 1.25rem;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
}

.button:hover {
  background: #a81830;
  color: #fff;
}

.site-footer {
  border-top: var(--border);
  padding: 1.5rem;
  text-align: center;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.75rem;
  color: var(--muted);
}