:root {
  --bg: #fbfbfd; --fg: #1d1d1f; --muted: #6e6e73; --line: #e4e4e7;
  --card: #ffffff; --accent: #2563eb; --code-bg: #f3f4f6; --code-fg: #1d1d1f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --fg: #e6e6e9; --muted: #9a9aa3; --line: #25272e;
    --card: #15171d; --accent: #6ea8fe; --code-bg: #1c1f27; --code-fg: #e6e6e9;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.wrap { width: 100%; max-width: 920px; margin: 0 auto; padding: 3rem clamp(1.25rem, 5vw, 4rem) 5rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
header.hero { margin-bottom: 3rem; }
h1 { font-size: 2.3rem; line-height: 1.1; margin: 0 0 .6rem; letter-spacing: -0.02em; word-break: break-word; }
.tagline { font-size: 1.15rem; color: var(--muted); margin: 0; max-width: 42rem; }
section { margin-top: 2.75rem; }
h2 { font-size: 1.3rem; margin: 0 0 .9rem; letter-spacing: -0.01em; }
p { max-width: 46rem; }
.download { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1.25rem 1.4rem; }
.download .row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.btn { display: inline-block; background: var(--accent); color: #fff; padding: .55rem 1.1rem; border-radius: 9px; font-weight: 600; font-size: .95rem; }
.btn:hover { text-decoration: none; opacity: .92; }
.dl-meta { color: var(--muted); font-size: .88rem; }
.dl-sub { margin-top: 1rem; color: var(--muted); font-size: .92rem; }
footer { margin-top: 4rem; padding-top: 1.5rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }