.install-app-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--glass-border);border-radius:8px;padding:8px 12px;background:var(--surface-02);color:var(--text-main);font:inherit;font-size:14px;cursor:pointer;white-space:nowrap}.install-app-button:hover{background:var(--surface-03)}.install-app-help__overlay{position:fixed;inset:0;z-index:2100;display:grid;place-items:center;padding:16px;background:var(--modal-backdrop)}.install-app-help{position:relative;width:min(100%,420px);padding:24px;border:1px solid var(--glass-border);border-radius:var(--border-radius);background:var(--bg-modal);color:var(--text-main);box-shadow:var(--shadow-overlay)}.install-app-help h2{margin:0 32px 12px 0;font-size:20px}.install-app-help p{margin:0 0 20px;color:var(--text-sec);line-height:1.5}.install-app-help__close{position:absolute;top:16px;right:16px;display:grid;place-items:center;border:0;background:transparent;color:var(--text-sec);cursor:pointer}