/**
 * PWA install prompt — standalone overlay (does not depend on app sidebar).
 */
#pwa-install-overlay {
  position: fixed;
  inset: 0;
  z-index: 100050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

/* Position controls (default center) */
#pwa-install-overlay.pwa-install-overlay--pos-bottom-right { align-items: flex-end; justify-content: flex-end; }
#pwa-install-overlay.pwa-install-overlay--pos-bottom-left { align-items: flex-end; justify-content: flex-start; }
#pwa-install-overlay.pwa-install-overlay--pos-bottom-center { align-items: flex-end; justify-content: center; }
#pwa-install-overlay.pwa-install-overlay--pos-top-right { align-items: flex-start; justify-content: flex-end; }
#pwa-install-overlay.pwa-install-overlay--pos-top-left { align-items: flex-start; justify-content: flex-start; }
#pwa-install-overlay.pwa-install-overlay--pos-top-center { align-items: flex-start; justify-content: center; }

/* Non-blocking corner variant (still uses the same card) */
#pwa-install-overlay.pwa-install-overlay--variant-corner {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  pointer-events: none;
}
#pwa-install-overlay.pwa-install-overlay--variant-corner #pwa-install-card {
  pointer-events: auto;
  max-width: 380px;
}

#pwa-install-overlay.pwa-install-overlay--visible {
  opacity: 1;
  visibility: visible;
}

#pwa-install-overlay.pwa-install-overlay--visible #pwa-install-card {
  transform: translateY(0) scale(1);
}

#pwa-install-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  transform: translateY(16px) scale(0.98);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  border-radius: 1.25rem;
  overflow: hidden;
  box-shadow:
    0 25px 50px -12px rgba(0, 0, 0, 0.35),
    0 0 0 1px rgba(255, 255, 255, 0.08);
}

.pwa-install-card__glow {
  position: absolute;
  inset: -1px;
  background: linear-gradient(135deg, var(--pwa-install-accent, #0f5132) 0%, #6366f1 100%);
  opacity: 0.92;
  z-index: 0;
}

.pwa-install-card__inner {
  position: relative;
  z-index: 1;
  margin: 1px;
  border-radius: calc(1.25rem - 1px);
  background: linear-gradient(
    165deg,
    rgba(255, 255, 255, 0.97) 0%,
    rgba(248, 250, 252, 0.98) 100%
  );
  padding: 1.75rem 1.5rem 1.5rem;
  color: #0f172a;
}

.pwa-install-card__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 2;
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 9999px;
  background: rgba(15, 23, 42, 0.06);
  color: #475569;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s, transform 0.15s;
}

.pwa-install-card__close:hover {
  background: rgba(15, 23, 42, 0.12);
  color: #0f172a;
}

.pwa-install-card__close:active {
  transform: scale(0.94);
}

.pwa-install-card__icon-wrap {
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto 1rem;
  border-radius: 1.125rem;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.95),
    rgba(248, 250, 252, 0.9)
  );
  box-shadow:
    0 12px 24px -8px rgba(15, 23, 42, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.pwa-install-card__icon-wrap img {
  width: 3.25rem;
  height: 3.25rem;
  object-fit: contain;
  border-radius: 0.5rem;
}

.pwa-install-card__title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin: 0 0 0.35rem;
  line-height: 1.25;
  color: #0f172a;
}

.pwa-install-card__subtitle {
  font-size: 0.9rem;
  line-height: 1.5;
  text-align: center;
  color: #64748b;
  margin: 0 0 1.25rem;
}

.pwa-install-card__hint {
  font-size: 0.8125rem;
  line-height: 1.55;
  color: #475569;
  background: rgba(15, 81, 50, 0.06);
  border-radius: 0.75rem;
  padding: 0.85rem 1rem;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(15, 81, 50, 0.12);
}

.pwa-install-card__hint kbd {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  font-size: 0.75rem;
  font-family: inherit;
  border-radius: 0.35rem;
  background: #fff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 0 #e2e8f0;
}

.pwa-install-card__actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.pwa-install-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 0.75rem;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
}

.pwa-install-btn--primary {
  color: #fff;
  background: linear-gradient(
    135deg,
    var(--pwa-install-accent, #0f5132),
    #059669
  );
  box-shadow: 0 8px 24px -6px rgba(15, 81, 50, 0.45);
}

.pwa-install-btn--primary:hover {
  filter: brightness(1.06);
  box-shadow: 0 12px 28px -8px rgba(15, 81, 50, 0.5);
}

.pwa-install-btn--primary:active {
  transform: scale(0.98);
}

.pwa-install-btn--ghost {
  color: #64748b;
  background: transparent;
  font-weight: 500;
}

.pwa-install-btn--ghost:hover {
  color: #0f172a;
  background: rgba(15, 23, 42, 0.05);
}

.pwa-install-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pwa-install-accent, #0f5132);
  margin-bottom: 0.65rem;
  justify-content: center;
  width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  #pwa-install-overlay,
  #pwa-install-card {
    transition: none;
  }
}