.app-shell {
  width: min(920px, 92vw);
  margin: 2rem auto;
  display: grid;
  gap: 1rem;
}

.header-pwa-install {
  background: linear-gradient(140deg, #0b3557, #0f4a78);
  color: #fff;
  border-radius: 1rem;
  padding: 1.5rem;
}

.eyebrow {
  margin: 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.header-pwa-install h1,
.header-pwa-install p,
.section-pwa-install h2,
.section-pwa-install p {
  margin: 0;
}

.subtitle {
  margin-top: 0.6rem;
}

.section-pwa-install {
  background: #fff;
  border-radius: 0.8rem;
  padding: 1.2rem;
  box-shadow: 0 6px 20px rgb(28 39 51 / 8%);
  display: grid;
  gap: 0.7rem;
}

.muted {
  color: #536174;
  font-size: 0.95rem;
}