.admin-install-banner {
  position: fixed;
  z-index: 100;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom));
  width: min(520px, calc(100% - 24px));
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid #c4d0dc;
  background: #fff;
  color: #222b35;
  box-shadow: 0 14px 38px rgba(15, 35, 52, .24);
}
.admin-install-banner img { border-radius: 10px; }
.admin-install-banner-copy { min-width: 0; display: grid; gap: 3px; }
.admin-install-banner-copy strong { color: #173650; font-size: 14px; }
.admin-install-banner-copy span { color: #66788a; font-size: 12px; white-space: normal; }
.admin-install-banner-action { min-height: 36px; padding: 8px 14px; font-weight: 600; }
.admin-install-banner-dismiss {
  width: 30px;
  min-height: 30px;
  border: 0;
  background: transparent;
  color: #718096;
  padding: 0;
  font-size: 24px;
}
.admin-install-banner-dismiss:hover { background: #edf1f4; }

.admin-install-guide-dialog {
  width: min(400px, calc(100% - 32px));
  padding: 0;
  border: 0;
  background: #fff;
  color: #222b35;
  box-shadow: 0 22px 60px rgba(15, 35, 52, .32);
}
.admin-install-guide-dialog::backdrop { background: rgba(15, 35, 52, .56); }
.admin-install-guide-content { padding: 24px; text-align: center; }
.admin-install-guide-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  margin: 0 auto 12px;
  background: #173650;
  color: #fff;
  font-size: 32px;
}
.admin-install-guide-content h2 { margin: 0 0 18px; font-size: 20px; }
.admin-install-guide-content ol { margin: 0 0 20px; padding-left: 24px; text-align: left; line-height: 1.75; }
.admin-install-guide-close { width: 100%; min-height: 40px; }

@media (max-width: 440px) {
  .admin-install-banner { grid-template-columns: 42px minmax(0, 1fr) auto; }
  .admin-install-banner img { width: 42px; height: 42px; }
  .admin-install-banner-dismiss { position: absolute; top: -9px; right: -7px; border: 1px solid #d8dee6; background: #fff; border-radius: 50%; }
  .admin-install-banner-copy span { display: none; }
}