/* ─── PWA Install Modal ───────────────────────────────────────────────────── */
.pwa-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .55);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.pwa-backdrop.visible {
  opacity: 1;
  pointer-events: auto;
}

.pwa-banner {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(.88);
  z-index: 1000;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 64px rgba(0,0,0,.22), 0 4px 16px rgba(0,0,0,.12);
  padding: 1.75rem 1.5rem 1.5rem;
  width: min(440px, calc(100vw - 2rem));
  opacity: 0;
  pointer-events: none;
  transition: transform .4s cubic-bezier(.34,1.56,.64,1), opacity .3s ease;
}
.pwa-banner.visible {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  pointer-events: auto;
}

.pwa-banner-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .75rem;
  text-align: center;
}
.pwa-banner-icon img {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
}
.pwa-banner-text {
  min-width: 0;
}
.pwa-banner-text strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: .25rem;
  font-family: var(--font-display);
}
.pwa-banner-text small {
  font-size: .85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.pwa-banner-actions {
  display: flex;
  gap: .75rem;
  width: 100%;
  margin-top: .5rem;
}
.pwa-banner-actions .btn {
  flex: 1;
}
.pwa-dismiss {
  position: absolute;
  top: .75rem;
  right: .75rem;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--bg-hover);
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1;
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
}
.pwa-dismiss:hover { background: var(--border-accent); color: var(--text-primary); }

/* ─── Offline screen ────────────────────────────────────────────────────── */
.offline-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 2rem;
  text-align: center;
}
.offline-icon { font-size: 4rem; margin-bottom: 1.5rem; animation: bounce 2s ease-in-out infinite; }
.offline-title { font-size: 1.75rem; font-weight: 700; margin-bottom: .75rem; font-family: var(--font-body); }
.offline-body  { color: var(--text-secondary); max-width: 320px; line-height: 1.6; }