.install-pwa-overlay {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  padding-bottom: max(16px, env(safe-area-inset-bottom));
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(4px);
}

.install-pwa-overlay.hidden {
  display: none;
}

body.install-pwa-open {
  overflow: hidden;
}

.install-pwa-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  padding: 22px 20px 18px;
  border-radius: 18px;
  background: linear-gradient(160deg, #1a1f3a 0%, #0a0e27 55%);
  border: 1px solid rgba(139, 92, 246, 0.45);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
  color: #fff;
}

.install-pwa-close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: none;
  background: transparent;
  color: #9aa;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.install-pwa-title {
  margin: 0 0 8px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #00ced1;
}

.install-pwa-lead {
  margin: 0 0 14px;
  font-size: 0.92rem;
  line-height: 1.45;
  color: #d0d8dc;
}

.install-pwa-steps {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: #e8ecef;
}

.install-pwa-steps.hidden {
  display: none;
}

.install-pwa-steps li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.install-pwa-steps li + li {
  margin-top: 10px;
}

.install-pwa-n {
  flex-shrink: 0;
  width: 22px;
  font-weight: 800;
  color: #00ced1;
}

.install-pwa-note {
  margin: 0 0 14px;
  font-size: 0.85rem;
  line-height: 1.45;
  color: #b8c4c8;
}

.install-pwa-note.hidden {
  display: none;
}

.install-pwa-note--warn {
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255, 180, 0, 0.12);
  border: 1px solid rgba(255, 180, 0, 0.35);
  color: #ffe8b0;
}

.install-pwa-primary,
.install-pwa-secondary {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.install-pwa-primary {
  background: linear-gradient(90deg, #8b5cf6, #00ced1);
  color: #0a0e27;
}

.install-pwa-primary:disabled {
  opacity: 0.65;
  cursor: wait;
}

.install-pwa-secondary {
  background: transparent;
  color: #8aa0a8;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

@media (min-width: 600px) {
  .install-pwa-overlay {
    align-items: center;
  }
}