:root {
  --paper: #f4f0e8;
  --ink: #23201c;
  --muted: #6d675e;
  --rule: #ddd6c8;
  --accent: #b6532a;
  --accent-soft: #e8d9c9;
  --card: #fbf8f2;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #191713;
    --ink: #eee7db;
    --muted: #9a9287;
    --rule: #332e27;
    --accent: #e0824f;
    --accent-soft: #2a231c;
    --card: #201d18;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.65;
}

.wrap {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- шапка --- */

.top {
  border-bottom: 1px solid var(--rule);
  padding: 1.6rem 0 1.2rem;
  margin-bottom: 3rem;
}

.top .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: baseline;
  justify-content: space-between;
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.mark svg { display: block; }

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
  font-size: 0.94rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

nav a:hover { color: var(--ink); border-bottom-color: var(--accent); }

nav a.here { color: var(--ink); border-bottom-color: var(--accent); }

/* --- типографика --- */

h1 {
  font-size: 2.35rem;
  line-height: 1.15;
  margin: 0 0 1.2rem;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 1.4rem;
  margin: 3rem 0 0.9rem;
  letter-spacing: -0.005em;
}

h3 {
  font-size: 1.08rem;
  margin: 2rem 0 0.4rem;
}

p { margin: 0 0 1.15rem; }

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

.lead {
  font-size: 1.22rem;
  color: var(--ink);
}

.dek {
  color: var(--muted);
  font-size: 0.96rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.7rem;
}

blockquote {
  margin: 2rem 0;
  padding: 0.2rem 0 0.2rem 1.4rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-style: italic;
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 3rem 0;
}

/* --- блоки --- */

.hero {
  border: 1px solid var(--rule);
  background: var(--card);
  border-radius: 3px;
  padding: 1.6rem;
  margin: 2.4rem 0;
}

.hero svg { width: 100%; height: auto; display: block; }

.cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1.6rem 2.2rem;
  margin: 1.6rem 0 0;
}

.cols h3 { margin-top: 0; }

.cols p { font-size: 0.98rem; color: var(--muted); margin-bottom: 0; }

dl.facts {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 0.5rem 1.4rem;
  margin: 1.8rem 0;
  font-size: 0.99rem;
}

dl.facts dt { color: var(--muted); }

dl.facts dd { margin: 0; }

ol.steps {
  padding-left: 1.3rem;
  margin: 1.4rem 0;
}

ol.steps li { margin-bottom: 1rem; }

ol.steps strong { display: block; }

.note {
  background: var(--accent-soft);
  border-radius: 3px;
  padding: 1.1rem 1.3rem;
  font-size: 0.98rem;
  margin: 2rem 0;
}

.note p:last-child { margin-bottom: 0; }

/* --- подвал --- */

footer {
  border-top: 1px solid var(--rule);
  margin-top: 4.5rem;
  padding: 1.6rem 0 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

footer p { margin: 0 0 0.4rem; }

/* --- 404 --- */

.lost {
  text-align: center;
  padding: 3rem 0 1rem;
}

.lost svg { margin: 0 auto 1.5rem; display: block; }

@media (max-width: 34rem) {
  body { font-size: 17px; }
  h1 { font-size: 1.9rem; }
  dl.facts { grid-template-columns: 1fr; gap: 0.1rem 0; }
  dl.facts dd { margin-bottom: 0.8rem; }
}