:root {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: light dark;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: #0d0d0d;
  color: #f4f4f4;
}
.shell {
  width: min(760px, calc(100% - 28px));
  margin: 0 auto;
  padding: 28px 0 48px;
}
.card {
  background: #171717;
  border: 1px solid #303030;
  border-radius: 24px;
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: 0 20px 55px rgba(0,0,0,.28);
}
.eyebrow { font-weight: 700; opacity: .72; margin-bottom: 10px; }
h1 { font-size: clamp(2rem, 8vw, 4rem); line-height: .98; margin: 0 0 24px; letter-spacing: -.04em; }
h1 span { opacity: .72; }
.quotes { border-left: 4px solid #777; padding-left: 16px; margin: 22px 0; }
.quotes p { margin: 8px 0; }
.punch { margin-top: 18px !important; }
.familiar { font-size: 1.25rem; font-weight: 800; }
ul { padding-left: 1.25rem; line-height: 1.65; }
blockquote {
  margin: 22px 0;
  padding: 16px 18px;
  border-radius: 16px;
  background: #222;
  font-size: 1.15rem;
  font-weight: 800;
}
button {
  width: 100%;
  border: 0;
  border-radius: 16px;
  padding: 16px 18px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  margin-top: 10px;
}
.primary { background: #f2f2f2; color: #111; }
.secondary { background: #2a2a2a; color: #fff; border: 1px solid #444; }
.save-line { margin: 22px 0 4px; font-size: 1.04rem; line-height: 1.55; }
.tiny, .disclaimer { font-size: .9rem; line-height: 1.55; opacity: .78; }
.install-help {
  margin-top: 12px;
  padding: 14px;
  border-radius: 14px;
  background: #232323;
  line-height: 1.45;
}
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.82);
  display: grid;
  place-items: center;
  z-index: 99;
}
.overlay-card {
  padding: 22px 24px;
  border-radius: 18px;
  background: #1a1a1a;
  border: 1px solid #333;
  font-weight: 800;
}
@media (prefers-color-scheme: light) {
  body { background: #f4f4f4; color: #161616; }
  .card { background: #fff; border-color: #ddd; }
  blockquote, .install-help { background: #f1f1f1; }
  .secondary { background: #eee; color: #111; border-color: #ddd; }
}

/* v1.1 fail-safe link button */
a.primary { display: block; text-decoration: none; text-align: center; box-sizing: border-box; }