.sempai-pwa { position:fixed; left:12px; right:12px; bottom:calc(80px + env(safe-area-inset-bottom)); z-index:10000; max-width:440px; margin:auto; padding:14px; border:1px solid #ded8f4; border-radius:18px; background:#fff; color:#10162f; box-shadow:0 8px 32px #10162f22; font:15px/1.4 system-ui,sans-serif; }
.sempai-pwa p { margin:0 0 10px; }
.sempai-pwa button { border:0; border-radius:10px; padding:10px 14px; background:#6246ea; color:#fff; font:600 14px system-ui; cursor:pointer; }
.sempai-pwa .later { margin-left:8px; background:#f1eefb; color:#10162f; }
.sempai-pwa button:focus-visible { outline:3px solid #d9a441; outline-offset:3px; }