.pwa-install-banner {
  position: fixed;
  top: 12px;
  top: calc(env(safe-area-inset-top, 0px) + 12px);
  left: 50%;
  z-index: 10000;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto 36px;
  align-items: center;
  gap: 12px;
  width: calc(100% - 24px);
  max-width: 620px;
  padding: 12px;
  box-sizing: border-box;
  color: #172033;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #fff;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.16);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -16px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.pwa-install-banner--visible {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.pwa-install-banner__icon {
  display: block;
  width: 48px;
  height: 48px;
  border-radius: 11px;
}

.pwa-install-banner__copy {
  min-width: 0;
}

.pwa-install-banner__title,
.pwa-install-banner__description {
  margin: 0;
}

.pwa-install-banner__title {
  color: #172033;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.pwa-install-banner__description {
  margin-top: 2px;
  color: #64748b;
  font-size: 12px;
  line-height: 1.45;
}

.pwa-install-banner__install,
.pwa-install-banner__close {
  appearance: none;
  border: 0;
  font: inherit;
  cursor: pointer;
}

.pwa-install-banner__install {
  min-height: 38px;
  padding: 0 15px;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  background: #2563eb;
  border-radius: 9px;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
}

.pwa-install-banner__install:hover {
  background: #1d4ed8;
}

.pwa-install-banner__install:focus-visible,
.pwa-install-banner__close:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.3);
  outline-offset: 2px;
}

.pwa-install-banner__install:disabled {
  cursor: default;
  opacity: 0.7;
}

.pwa-install-banner__close {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  color: #64748b;
  font-size: 24px;
  line-height: 1;
  background: transparent;
  border-radius: 50%;
}

.pwa-install-banner__close:hover {
  color: #334155;
  background: #f1f5f9;
}

@media (max-width: 480px) {
  .pwa-install-banner {
    top: 8px;
    top: calc(env(safe-area-inset-top, 0px) + 8px);
    grid-template-columns: 42px minmax(0, 1fr) 36px;
    gap: 8px 10px;
    width: calc(100% - 16px);
    padding: 10px;
  }

  .pwa-install-banner__icon {
    grid-row: 1 / span 2;
    width: 42px;
    height: 42px;
    border-radius: 10px;
  }

  .pwa-install-banner__copy {
    grid-column: 2;
    grid-row: 1;
  }

  .pwa-install-banner__install {
    grid-column: 2;
    grid-row: 2;
    justify-self: start;
    min-height: 34px;
    padding: 0 13px;
  }

  .pwa-install-banner__close {
    grid-column: 3;
    grid-row: 1 / span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pwa-install-banner {
    transition: none;
  }
}