.app-install-dialog { width:min(560px,calc(100vw - 24px)); max-height:calc(100dvh - 32px); overflow:auto; padding:24px; border:1px solid var(--border); border-radius:16px; color:var(--theme-text,#293e34); background:var(--theme-paper,#fff); box-shadow:var(--surface-shadow); }
.app-install-dialog::backdrop { background:#0007; }
.app-install-heading { display:flex; align-items:center; gap:16px; }
.app-install-heading img { flex-shrink:0; border-radius:14px; }
.app-install-heading h2 { margin:0; font-size:1.4rem; line-height:1.2; }
.app-install-heading p { margin:6px 0 0; }
.app-platforms { display:flex; gap:8px; margin:22px 0 14px; }
.app-platforms button { flex:1; margin:0; }
.app-platforms button[aria-pressed="true"] { background:var(--green); border-color:var(--green); color:#fff; }
.app-install-dialog h3 { font-size:1.1rem; margin:12px 0; }
.app-install-dialog ol { padding-left:24px; }
.app-install-dialog li { margin-bottom:10px; }
.app-install-status:empty { display:none; }
.app-install-status { color:var(--theme-accent,#2f5b44); }
.app-install-footer { display:block; margin-top:12px; }
.app-connection { margin:12px 20px; padding:12px 16px; border:1px solid var(--border); border-radius:10px; background:var(--theme-warning,#fff7e6); }
@media (max-width:480px) { .app-install-dialog { padding:18px; } .app-install-heading { gap:12px; } .app-install-heading img { width:52px; height:52px; } }
@media (display-mode:standalone) {
  body { padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px); padding-left:env(safe-area-inset-left,0px); padding-right:env(safe-area-inset-right,0px); }
}
@media print { .app-install-footer,.app-connection,.app-install-dialog { display:none; } }