.app-install { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line); }
.app-install[hidden], .install-help[hidden], .install-help section[hidden], .install-button[hidden], .install-status[hidden] { display: none; }
.install-button { width: 100%; min-height: 48px; display: flex; align-items: center; justify-content: center; gap: 10px; background: #f0f8f8; border-color: #a8d0d2; color: #155b62; }
.install-button svg { flex: 0 0 22px; width: 22px; height: 22px; }
.install-caption { margin: 9px 0 0; font-size: 12px; line-height: 1.5; text-align: center; color: var(--muted); }
.install-help { margin-top: 14px; padding: 14px; border: 1px solid #c8dfe1; border-radius: 12px; background: #f5fafb; overflow-wrap: anywhere; }
.install-help h2 { font-size: 17px; margin: 0 0 10px; line-height: 1.3; }
.install-help p, .install-help li { font-size: 14px; line-height: 1.55; }
.install-help p { margin: 8px 0; }
.install-help ol { padding-left: 21px; margin: 8px 0; }
.install-help li + li { margin-top: 8px; }
.install-help-close { margin-top: 12px; width: 100%; min-height: 44px; }
.install-status { margin: 12px 0 0; font-size: 13px; color: #315e66; line-height: 1.5; }
.install-help:focus-visible, .install-button:focus-visible, .install-help-close:focus-visible { outline: 3px solid #409ba0; outline-offset: 3px; }
@media (max-width: 360px) { .install-button { padding-left: 10px; padding-right: 10px; font-size: 14px; } }