:root {
  --bg: #faf8f5;
  --surface: #ffffff;
  --text: #1d1c1a;
  --muted: #68645c;
  --line: #e7e2d9;
  --accent: #1f5f5b;
  --accent-soft: #e2efed;
  --on-accent: #ffffff;
  --tile-s: 55%;
  --tile-bg-l: 91%;
  --tile-fg-l: 28%;
  --shadow: 0 1px 2px rgba(29, 28, 26, 0.04), 0 6px 20px rgba(29, 28, 26, 0.05);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
  --radius: 14px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121413;
    --surface: #1a1c1b;
    --text: #ecebe7;
    --muted: #a39f96;
    --line: #2c2f2d;
    --accent: #6fcfc4;
    --accent-soft: #1c2d2b;
    --on-accent: #0d1a19;
    --tile-s: 35%;
    --tile-bg-l: 22%;
    --tile-fg-l: 80%;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
}

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

@media (min-width: 720px) {
  .wrap { padding: 0 24px; }
}

/* ---------- Шапка ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 1rem;
  font-weight: 800;
}

/* ---------- Главная ---------- */

.hero { padding: 48px 0 32px; }

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero .lead {
  margin: 20px 0 0;
  max-width: 54ch;
  color: var(--muted);
  font-size: 1.15rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (max-width: 720px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
}

.card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  color: inherit;
  text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.card-top { display: flex; align-items: center; gap: 12px; }

.tile {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: hsl(var(--h) var(--tile-s) var(--tile-bg-l));
  color: hsl(var(--h) 60% var(--tile-fg-l));
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.kicker {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.3;
}

.kicker b { color: var(--text); font-weight: 600; }

.card h3 {
  margin: 16px 0 8px;
  font-size: 1.25rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.card p { margin: 0; color: var(--muted); font-size: 0.97rem; }

.card .meta {
  margin-top: auto;
  padding-top: 16px;
  color: var(--muted);
  font-size: 0.85rem;
}

.about {
  margin: 56px 0 0;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--accent-soft);
}

.about h2 { margin: 0 0 8px; font-size: 1.2rem; letter-spacing: -0.01em; }
.about p { margin: 0; max-width: 62ch; }

/* ---------- Статья ---------- */

.post { max-width: 720px; margin: 0 auto; padding: 32px 0 8px; }

.back {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

.back:hover { color: var(--accent); }

.chip-static {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
}

.post h1 {
  margin: 14px 0 0;
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.025em;
}

.post .lead {
  margin: 18px 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.25rem;
  line-height: 1.55;
}

.post .byline {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px 24px;
  margin: 28px 0 0;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

@media (max-width: 640px) {
  .facts { grid-template-columns: minmax(0, 1fr); gap: 12px; }
}

.facts dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.facts dd { margin: 4px 0 0; font-weight: 500; }

.prose { margin-top: 12px; }

.prose h2 {
  margin: 36px 0 0;
  font-size: 1.45rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.prose p {
  margin: 14px 0 0;
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.75;
}

.takeaways {
  margin: 40px 0 0;
  padding: 22px 24px;
  border-radius: var(--radius);
  background: var(--accent-soft);
}

.takeaways h2 { margin: 0 0 10px; font-size: 1.05rem; }
.takeaways ul { margin: 0; padding-left: 20px; }
.takeaways li + li { margin-top: 8px; }

.official { margin: 24px 0 0; color: var(--muted); font-size: 0.95rem; }

.related { margin: 48px 0 0; }
.related h2 { margin: 0 0 14px; font-size: 1.1rem; }

/* ---------- Подвал ---------- */

.site-footer {
  margin-top: 64px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.site-footer p { margin: 0; max-width: 70ch; }
.site-footer p + p { margin-top: 6px; }

@media (prefers-reduced-motion: reduce) {
  .card { transition: none; }
  .card:hover { transform: none; }
}