#app-install[hidden] { display: none; }
#app-install { position: fixed; bottom: calc(20px + env(safe-area-inset-bottom)); right: 20px; z-index: 1200; }
#app-install-button, #app-install-help button { font: inherit; font-weight: 700; color: white; background: #08783e; border: 2px solid white; border-radius: 999px; padding: 12px 22px; cursor: pointer; box-shadow: 0 3px 14px #0003; }
#app-install-button:hover, #app-install-help button:hover { background: #065d30; }
#app-install-button:focus-visible, #app-install-help button:focus-visible { outline: 3px solid #dba91d; outline-offset: 3px; }
#app-install-help { width: min(420px, calc(100% - 32px)); margin: auto; padding: 24px; border: 0; border-radius: 16px; color: #173126; font-family: Inter, Arial, sans-serif; }
#app-install-help::backdrop { background: #0008; }
#app-install-help h2 { font-size: 1.25rem; margin: 0 0 12px; }
#app-install-help p { line-height: 1.6; margin-bottom: 20px; }