:root {
  --bg: #12151b; --surface: #1b2029; --border: #2a313d;
  --text: #e8edf2; --muted: #9aa5b4; --accent: #5ccf8a; --accent-ink: #0d1a12;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.6 system-ui, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }

.top { position: sticky; top: 0; z-index: 1; display: flex; flex-wrap: wrap; gap: 8px 24px;
  align-items: center; justify-content: space-between; padding: 10px 16px;
  background: color-mix(in srgb, var(--bg) 90%, transparent); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border); }
.brand { display: flex; gap: 10px; align-items: center; color: var(--text);
  font-weight: 700; text-decoration: none; }
.top nav { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover, .top nav a:focus-visible { color: var(--text); }

main { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
section { padding: 48px 0 8px; scroll-margin-top: 60px; }
h1 { font-size: clamp(2.2rem, 6vw, 3.4rem); margin: 16px 0 8px; }
h2 { font-size: 1.7rem; margin: 0 0 16px; }
h3 { margin: 28px 0 6px; }
.date { color: var(--muted); font-size: .85rem; font-weight: 400; margin-left: 8px; }

.hero { text-align: center; padding-top: 56px; }
.hero img { margin: 0 auto; }
.lead { font-size: 1.2rem; max-width: 680px; margin: 0 auto 24px; }
.note { color: var(--muted); font-size: .92rem; }
.button { display: inline-block; padding: 12px 26px; border-radius: 10px; font-weight: 700;
  background: var(--accent); color: var(--accent-ink); text-decoration: none; }

.features { list-style: none; padding: 0; display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); }
.features li { background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 14px 16px; }
.features strong { display: block; }

.gallery { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); }
.gallery figure { margin: 0; }
.gallery img { border-radius: 10px; border: 1px solid var(--border); }
.gallery figcaption { color: var(--muted); font-size: .9rem; margin-top: 6px; }

.downloads { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); }
.card { display: flex; flex-direction: column; gap: 2px; padding: 18px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  text-decoration: none; }
.card:hover, .card:focus-visible { border-color: var(--accent); }
.card .os { font-weight: 700; font-size: 1.1rem; }
.card .what { color: var(--accent); }
.card .hint { color: var(--muted); font-size: .9rem; }

details { background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 0 16px; margin-bottom: 10px; }
summary { cursor: pointer; padding: 12px 0; font-weight: 600; }
details p, details ol { margin-top: 0; }
code, kbd { background: var(--bg); border: 1px solid var(--border); border-radius: 4px;
  padding: 0 5px; font-size: .9em; overflow-wrap: anywhere; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

footer { border-top: 1px solid var(--border); margin-top: 48px; padding: 20px 16px;
  text-align: center; color: var(--muted); font-size: .85rem; }