/* ── PWA: Update Banner ─────────────────────────────────────────────── */
.pwa-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .75rem 1rem;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  z-index: 10000;
  font-size: .875rem;
  animation: pwa-slide-up .3s ease;
  max-width: calc(100vw - 2rem);
}
.pwa-banner--changelog {
  flex-direction: column;
  gap: .5rem;
  padding: 1rem 1.25rem;
  max-width: 380px;
  width: 100%;
}
@keyframes pwa-slide-up {
  from { transform: translateX(-50%) translateY(100%); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0);    opacity: 1; }
}
.pwa-banner__content { width: 100%; }
.pwa-banner__title {
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: .5rem;
  color: var(--text);
}
.pwa-banner__changes {
  margin: 0;
  padding: 0 0 0 1.1rem;
  list-style: disc;
  font-size: .8rem;
  color: var(--muted2);
  line-height: 1.5;
}
.pwa-banner__changes li { margin-bottom: 2px; }
.pwa-banner__actions {
  display: flex;
  gap: .5rem;
  margin-top: .5rem;
}
.pwa-banner__btn {
  padding: .4rem .9rem;
  background: var(--accent);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity .2s;
}
.pwa-banner__btn:hover { opacity: .85; }
.pwa-banner__later {
  padding: .4rem .9rem;
  background: none;
  color: var(--muted);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  font-size: .8rem;
  cursor: pointer;
  transition: color .2s, border-color .2s;
}
.pwa-banner__later:hover { color: var(--text); border-color: var(--text); }
.pwa-banner__close {
  position: absolute;
  top: .5rem;
  right: .5rem;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1rem;
  cursor: pointer;
  padding: .25rem;
  line-height: 1;
  transition: color .2s;
}
.pwa-banner__close:hover { color: var(--text); }

/* ── PWA: Install Button (topbar) ──────────────────────────────────── */
.pwa-install-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--accent);
  cursor: pointer;
  transition: background .2s, border-color .2s;
  flex-shrink: 0;
}
.pwa-install-btn:hover {
  background: var(--surface2);
  border-color: var(--accent);
}
.pwa-install-btn svg {
  display: block;
}

@media (max-width: 768px) {
  .pwa-banner {
    bottom: 1rem;
    font-size: .8rem;
    gap: .5rem;
    padding: .6rem .8rem;
  }
  .pwa-banner--changelog {
    max-width: calc(100vw - 2rem);
    padding: .8rem 1rem;
  }
}