:root {
  --accent: #009ea3;
  --bg: #ffffff;
  --fg: #1d1d1f;
  --muted: #5f6368;
  --line: #e3e5e8;
  --card: #f6f7f8;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --accent: #00c2c7; --bg: #141517; --fg: #ececed; --muted: #a0a4aa; --line: #2c2e32; --card: #1c1d20; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 48px 24px 80px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header img { width: 40px; height: 40px; }
h1 { font-size: 28px; margin: 0; }
h2 { font-size: 20px; margin: 40px 0 8px; }
h3 { font-size: 16px; margin: 24px 0 4px; }
p, li { color: var(--fg); }
.lead { color: var(--muted); font-size: 18px; margin-top: 4px; }
a { color: var(--accent); }
nav { margin: 16px 0 32px; font-size: 15px; }
nav a { margin-right: 16px; }
.downloads { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 24px 0; }
.download {
  display: block; padding: 20px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--card); text-decoration: none; color: var(--fg);
}
.download strong { display: block; font-size: 18px; }
.download span { color: var(--muted); font-size: 14px; }
.download:hover { border-color: var(--accent); }
.button {
  display: inline-block; padding: 10px 18px; border-radius: 8px; background: var(--accent);
  color: #fff; text-decoration: none; font-weight: 600;
}
ol.steps { padding-left: 22px; }
ol.steps > li { margin: 10px 0; }
code, kbd {
  font: 14px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--card); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px;
}
.note { border-left: 3px solid var(--accent); padding: 4px 14px; color: var(--muted); margin: 16px 0; }
footer { margin-top: 56px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
@media (max-width: 560px) { .downloads { grid-template-columns: 1fr; } }