.install-prompt {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(14px + env(safe-area-inset-bottom));
  z-index: 9200;
  display: none;
  max-width: 520px;
  margin: 0 auto;
  color: #fff;
  background: #263f68;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 22px;
  box-shadow: 0 18px 44px rgba(4, 13, 27, 0.32);
  padding: 16px;
}
.install-prompt.show {
  display: block;
}
.install-prompt-head {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 36px;
  gap: 12px;
  align-items: center;
}
.install-prompt-icon {
  width: 36px;
  height: 36px;
  object-fit: contain;
}
.install-prompt-title {
  font-weight: 900;
  font-size: 1rem;
  line-height: 1.25;
}
.install-prompt-subtitle {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.84rem;
  line-height: 1.35;
}
.install-prompt-close {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
}
.install-prompt-steps {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.install-prompt-steps li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.92rem;
  line-height: 1.35;
}
.install-prompt-steps span {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  color: #0b1f3a;
  background: #e0ac1c;
  font-weight: 900;
  font-size: 0.82rem;
}
.install-prompt-action {
  width: 100%;
  min-height: 44px;
  margin-top: 14px;
  border: 0;
  border-radius: 14px;
  background: #e0ac1c;
  color: #0b1f3a;
  font-weight: 900;
  cursor: pointer;
}
@media (min-width: 761px) {
  .install-prompt {
    display: none !important;
  }
}