/**
 * PWA install button — floating button + iOS hint modal.
 *
 * Visible only when `[hidden]` is removed by JS (after beforeinstallprompt
 * fires, or when iOS path is enabled).
 */

.use-pwa-install {
  --upi-bg: var(--use-color-primary, #111);
  --upi-fg: #fff;
  --upi-radius: 999px;

  position: fixed;
  z-index: 9000;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .7rem 1rem .7rem .85rem;
  background: var(--upi-bg);
  color: var(--upi-fg);
  border: 0;
  border-radius: var(--upi-radius);
  box-shadow: 0 6px 24px rgba(0,0,0,.18), 0 2px 6px rgba(0,0,0,.12);
  font: inherit;
  font-size: .92rem;
  font-weight: 500;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform .18s ease, box-shadow .18s ease, opacity .18s ease;
  animation: use-pwa-install-in .35s ease;
}

.use-pwa-install[hidden] { display: none; }

.use-pwa-install:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0,0,0,.22), 0 3px 8px rgba(0,0,0,.14);
}
.use-pwa-install:focus-visible {
  outline: 2px solid var(--upi-fg);
  outline-offset: 3px;
}

.use-pwa-install__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.use-pwa-install__label { white-space: nowrap; }
.use-pwa-install__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-left: .25rem;
  border-radius: 50%;
  opacity: .7;
  transition: opacity .15s ease, background .15s ease;
}
.use-pwa-install__close:hover,
.use-pwa-install__close:focus-visible {
  opacity: 1;
  background: rgba(255,255,255,.18);
  outline: none;
}

/* Positions */
.use-pwa-install--bottom-right  { right: 1rem; bottom: 1rem; }
.use-pwa-install--bottom-left   { left:  1rem; bottom: 1rem; }
.use-pwa-install--bottom-center { left: 50%; bottom: 1rem; transform: translateX(-50%); }
.use-pwa-install--bottom-center:hover { transform: translateX(-50%) translateY(-2px); }

@media (max-width: 480px) {
  .use-pwa-install {
    bottom: max(1rem, env(safe-area-inset-bottom));
    font-size: .88rem;
    padding: .65rem .9rem .65rem .8rem;
  }
}

@keyframes use-pwa-install-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.use-pwa-install--bottom-center {
  animation: use-pwa-install-in-center .35s ease;
}
@keyframes use-pwa-install-in-center {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

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

/* iOS hint modal */
.use-pwa-ios-hint {
  position: fixed;
  inset: 0;
  z-index: 9100;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  background: rgba(0,0,0,.45);
  padding: 0;
  animation: use-pwa-ios-fade .25s ease;
}
.use-pwa-ios-hint[hidden] { display: none; }

.use-pwa-ios-hint__panel {
  position: relative;
  width: 100%;
  max-width: 480px;
  padding: 1.5rem 1.25rem 2.5rem;
  background: #fff;
  color: #111;
  border-radius: 16px 16px 0 0;
  box-shadow: 0 -8px 32px rgba(0,0,0,.18);
  animation: use-pwa-ios-slide .3s ease;
}
@media (min-width: 600px) {
  .use-pwa-ios-hint { align-items: center; padding: 1rem; }
  .use-pwa-ios-hint__panel { border-radius: 16px; padding-bottom: 1.5rem; }
}

.use-pwa-ios-hint__close {
  position: absolute;
  top: .5rem;
  right: .75rem;
  width: 32px;
  height: 32px;
  background: transparent;
  border: 0;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  color: #555;
}
.use-pwa-ios-hint__title {
  margin: 0 0 .8rem;
  font-size: 1.1rem;
  font-weight: 600;
}
.use-pwa-ios-hint__steps {
  margin: 0;
  padding-left: 1.25rem;
  line-height: 1.5;
  font-size: .95rem;
}
.use-pwa-ios-hint__steps li { margin-bottom: .4rem; }

@keyframes use-pwa-ios-fade {
  from { opacity: 0; } to { opacity: 1; }
}
@keyframes use-pwa-ios-slide {
  from { transform: translateY(100%); } to { transform: translateY(0); }
}