:root {
  --bg: #ffffff;
  --fg: #16202a;
  --muted: #5b6875;
  --line: #dde4eb;
  --code-bg: #f1f5f9;
  --accent: #185fa5;
  --accent-fg: #ffffff;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f151b;
    --fg: #e6edf3;
    --muted: #96a3b0;
    --line: #26313c;
    --code-bg: #18212a;
    --accent: #85b7eb;
    --accent-fg: #0f151b;
  }
}

html[data-l="en"] .ru,
html[data-l="ru"] .en { display: none; }

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}

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

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 600;
  font-size: 1.15rem;
  text-decoration: none;
}

.langs button {
  border: 1px solid var(--line);
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 0.85rem;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
}

html[data-l="en"] [data-set="en"],
html[data-l="ru"] [data-set="ru"] {
  color: var(--fg);
  border-color: var(--fg);
}

.hero { padding: 32px 0 8px; }

h1 {
  font-size: clamp(2rem, 7vw, 3rem);
  line-height: 1.1;
  margin: 0 0 16px;
}

.hero p { font-size: 1.1rem; }

section { padding: 16px 0; border-bottom: 1px solid var(--line); }
section:last-child { border-bottom: 0; }

h2 { font-size: 1.3rem; margin: 16px 0 8px; }

.muted { color: var(--muted); }

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  display: inline-flex;
  flex-direction: column;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 10px;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.button small { font-weight: 400; font-size: 0.8rem; }

.button.primary {
  background: var(--accent);
  color: var(--accent-fg);
}

code {
  font: 0.9em ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
}

code.block {
  display: block;
  padding: 10px 12px;
  white-space: pre-wrap;
  word-break: break-all;
}

.repo {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.repo > div { min-width: 0; }

.qr {
  flex: none;
  background: #ffffff;
  padding: 8px;
  border-radius: 8px;
}

@media (max-width: 560px) {
  .repo { flex-direction: column; }
}

footer { padding-top: 24px; padding-bottom: 32px; }