:root {
  --bg: #0f0f12;
  --card: #1a1a1e;
  --text: #f5f5f7;
  --muted: rgba(235, 235, 245, 0.72);
  --line: rgba(255, 255, 255, 0.08);
  --link: #4da3ff;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f5f5f7;
    --card: #ffffff;
    --text: #1d1d1f;
    --muted: #4a4a50;
    --line: rgba(0, 0, 0, 0.08);
    --link: #0a64d8;
    color-scheme: light;
  }
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 "Segoe UI Variable Text", "Segoe UI", -apple-system, system-ui, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); }
.wrap { max-width: 720px; margin: 0 auto; padding: 56px 20px 80px; }
header { display: flex; align-items: center; gap: 14px; }
header img { width: 44px; height: 44px; }
header .name { font-weight: 700; font-size: 18px; }
nav { margin-left: auto; display: flex; gap: 18px; font-size: 14px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current] { color: var(--text); }
h1 { margin-top: 56px; font-size: 36px; line-height: 1.15; letter-spacing: -0.02em; }
h2 { margin-top: 36px; font-size: 20px; letter-spacing: -0.01em; }
p, li { margin-top: 12px; color: var(--muted); }
ul { padding-left: 22px; }
strong { color: var(--text); }
.lede { font-size: 19px; }
.card { margin-top: 32px; padding: 24px; border-radius: 16px; background: var(--card); border: 1px solid var(--line); }
.card h2 { margin-top: 0; }
.downloads { margin-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.downloads .card { margin-top: 0; }
.dl { display: flex; flex-direction: column; align-items: center; text-align: center; }
.dl h2 { margin-top: 12px; }
.dl p { margin-top: 4px; }
.os { width: 36px; height: 36px; fill: var(--text); }
.btn {
  margin-top: auto;
  display: inline-block;
  padding: 12px 22px;
  border-radius: 12px;
  background: #0a64d8;
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}
.btn:hover { background: #1a70e0; }
.btn:focus-visible { outline: 2px solid #64b5ff; outline-offset: 2px; }
.dl > .btn { margin-top: auto; }
.dl .blurb { margin: 12px 0 20px; font-size: 14px; max-width: 280px; }
.qr { margin-top: auto; border-radius: 12px; background: #fff; padding: 6px; }
.qr-hint { font-size: 14px; }
.phone-btn { display: none; }

footer { margin-top: 64px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
@media (max-width: 560px) {
  nav { display: none; }
  h1 { font-size: 30px; }
  .downloads { grid-template-columns: 1fr; }
}
/* on a phone you can't scan your own screen: show a big download button instead of the QR */
@media (max-width: 760px), (pointer: coarse) {
  .qr, .qr-hint { display: none; }
  .phone-btn { display: inline-block; }
}