#install-launcher { position:fixed; left:12px; bottom:12px; z-index:80; padding:8px 12px; border:1px solid #aaa; border-radius:6px; background:#fff; color:#333; font:13px system-ui,sans-serif; cursor:pointer; box-shadow:0 1px 5px #0002; }
#install-launcher[hidden], #install-settings[hidden], #install-action[hidden] { display:none; }
#install-dialog { width:min(440px,calc(100vw - 32px)); box-sizing:border-box; max-height:85vh; overflow:auto; padding:24px; border:1px solid #ccc; border-radius:12px; background:#fff; color:#222; font:14px/1.6 system-ui,sans-serif; }
#install-dialog::backdrop { background:#0006; }
#install-dialog h2 { margin:0 0 12px; font-size:20px; }
#install-dialog p { white-space:pre-line; }
#install-note { color:#666; font-size:12px; }
#install-dialog .install-actions { display:flex; gap:8px; justify-content:flex-end; }
#install-dialog button { padding:8px 16px; border:1px solid #bbb; border-radius:6px; cursor:pointer; background:#f4f4f4; color:#222; }
#install-dialog #install-action { background:#235cc7; color:#fff; border-color:#235cc7; }
#install-status:empty { display:none; }