.pwa-update {
  position: fixed; z-index: 1000; right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom)); width: min(390px, calc(100vw - 32px));
  box-sizing: border-box; padding: 20px; border: 1px solid var(--theme-line, #56594e);
  border-radius: 16px; background: var(--theme-panel, #20231f); color: var(--theme-fg, #eee9de);
  box-shadow: 0 12px 40px var(--theme-scrim, #0006); font: 15px/1.5 system-ui, sans-serif;
}
.pwa-update h2 { margin: 0 0 8px; font: 600 20px/1.3 system-ui, sans-serif; }
.pwa-update p { margin: 0 0 16px; color: inherit; }
.pwa-update > div { display: flex; flex-wrap: wrap; gap: 10px; }
.pwa-update button { min-height: 44px; padding: 10px 16px; border-radius: 9px; cursor: pointer;
  border: 1px solid var(--theme-line, #56594e); background: transparent; color: inherit; font: inherit; }
.pwa-update button.primary { background: var(--theme-accent, #b8a774); color: var(--theme-bg, #131516); }
.pwa-update button:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }