#pec-offline { position:fixed; bottom: max(8px, env(safe-area-inset-bottom)); right:8px; z-index:10000; max-width:min(350px, calc(100vw - 16px)); color:#163b2c; background:#f4faf6; border:1px solid #b6d9c3; border-radius:10px; box-shadow:0 2px 8px #0002; font:13px/1.45 Arial,sans-serif; }
#pec-offline summary { cursor:pointer; padding:9px 12px; }
#pec-offline p { margin:8px 12px; }
#pec-offline button, #pec-offline a { display:inline-block; margin:4px 12px 8px; padding:8px; border:1px solid #087f4e; border-radius:6px; background:white; color:#075b39; font:inherit; cursor:pointer; }
#pec-offline [hidden] { display:none; }