.install-app { display:inline-flex;align-items:center;min-height:44px;background:transparent;border:0;color:inherit;text-align:left;padding:8px 0;font:inherit;font-size:14px;text-decoration:underline;text-underline-offset:4px;cursor:pointer; }
.install-app[hidden] { display:none; }
.install-help { width:min(520px,calc(100vw - 40px));max-height:85dvh;padding:58px 28px 30px;border:0;border-radius:8px;box-shadow:0 20px 80px #0004;background:#fff;color:#202020;font:16px/1.65 'DM Sans',Arial,sans-serif; }
.install-help::backdrop { background:#0008; }
.install-help h2 { font:600 28px/1.25 'DM Sans',Arial,sans-serif;letter-spacing:-.03em; }
.install-help p,.install-help li { font-size:16px;line-height:1.65;color:#555; }
.install-help ul { padding-left:22px; }
.install-help li { margin-bottom:16px; }
.install-close { position:absolute;right:12px;top:10px;width:48px;height:48px;border:0;background:transparent;color:#222;font-size:30px;cursor:pointer; }
.install-app:focus-visible,.install-close:focus-visible { outline:3px solid #155aca;outline-offset:4px; }
body:has(.install-help[open]) { overflow:hidden; }