.pwa-install-banner {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  z-index: 12000;
  display: grid;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(16, 185, 129, 0.25);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.16);
}

@supports (backdrop-filter: blur(8px)) {
  .pwa-install-banner {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
  }
}

.pwa-install-text strong {
  display: block;
  font-size: 15px;
  color: #111827;
  margin-bottom: 4px;
}

.pwa-install-text span {
  display: block;
  font-size: 12px;
  color: #64748b;
  line-height: 1.45;
}

.pwa-install-actions {
  display: flex;
  gap: 8px;
}

.pwa-btn {
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.pwa-btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #10b981, #059669);
}

.pwa-btn-ghost {
  color: #64748b;
  background: #f1f5f9;
}

.pwa-install-modal {
  position: fixed;
  inset: 0;
  z-index: 13000;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(15, 23, 42, 0.45);
}

.pwa-install-modal[hidden] {
  display: none !important;
}

.pwa-install-modal-panel {
  width: min(420px, 100%);
  background: #fff;
  border-radius: 18px;
  padding: 22px 18px;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.18);
}

.pwa-install-modal-panel h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.pwa-guide-list {
  margin: 0 0 12px;
  padding-left: 20px;
  color: #334155;
  line-height: 1.65;
  font-size: 14px;
}

.pwa-guide-note {
  margin: 0 0 14px;
  font-size: 12px;
  color: #64748b;
}

.pwa-toast {
  position: fixed;
  left: 50%;
  bottom: calc(80px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%) translateY(12px);
  opacity: 0;
  pointer-events: none;
  z-index: 14000;
  background: rgba(17, 24, 39, 0.92);
  color: #fff;
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 13px;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.pwa-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (min-width: 768px) {
  .pwa-install-banner {
    left: auto;
    right: 20px;
    width: min(360px, calc(100vw - 40px));
  }
}