.pwa-install-banner {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 125;
  width: min(24rem, calc(100vw - 2rem));
  display: grid;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid rgba(14, 116, 144, 0.18);
  border-radius: 1.25rem;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent 48%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.97), rgba(241, 245, 249, 0.97));
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 180ms ease, transform 180ms ease;
  backdrop-filter: blur(14px);
}

.pwa-install-banner[hidden] {
  display: none;
}

.pwa-install-banner.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.pwa-install-content {
  display: grid;
  gap: 0.4rem;
}

.pwa-install-badge {
  margin: 0;
  color: #0f766e;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.pwa-install-title {
  margin: 0;
  color: #0f172a;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.35;
}

.pwa-install-description,
.pwa-install-hint {
  margin: 0;
  color: #475569;
  font-size: 0.82rem;
  line-height: 1.55;
}

.pwa-install-hint {
  display: none;
  color: #0f172a;
  font-weight: 600;
}

.pwa-install-banner.is-help-visible .pwa-install-hint,
.pwa-install-banner.is-ios-mode .pwa-install-hint {
  display: block;
}

.pwa-install-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.pwa-install-primary,
.pwa-install-dismiss {
  min-height: 2.75rem;
  border: 0;
  border-radius: 999px;
  padding: 0.72rem 1rem;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.pwa-install-primary {
  flex: 1 1 10rem;
  color: #ffffff;
  background: linear-gradient(135deg, #0f766e, #0f52ba);
  box-shadow: 0 10px 24px rgba(15, 82, 186, 0.24);
}

.pwa-install-primary:hover,
.pwa-install-primary:focus-visible,
.pwa-install-dismiss:hover,
.pwa-install-dismiss:focus-visible {
  transform: translateY(-1px);
}

.pwa-install-dismiss {
  flex: 0 0 auto;
  color: #334155;
  background: rgba(226, 232, 240, 0.82);
}

@media (max-width: 767px) {
  .pwa-install-banner {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.75rem;
    width: auto;
    border-radius: 1.1rem;
  }

  .pwa-install-banner-mobile-nav {
    bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
  }

  .pwa-install-actions {
    flex-direction: column;
  }

  .pwa-install-primary,
  .pwa-install-dismiss {
    width: 100%;
  }
}