html,body{height:100%;margin:0;padding:0;background:#ffffff;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif}
#app-shell{max-width:1100px;margin:0 auto;padding:40px 20px 24px}
#app-shell h1{font-size:32px;line-height:1.2;margin:0 0 8px;color:#0f172a;font-weight:700}
#app-shell .tagline{margin:0 0 12px;font-weight:600;color:#0f172a}
#app-shell .desc{margin:0 0 20px;max-width:720px;color:#334155}
#app-shell .actions{display:flex;flex-wrap:wrap;gap:12px}
#app-shell .btn{display:inline-block;text-decoration:none;padding:12px 20px;border-radius:8px;font-weight:600;font-size:15px}
#app-shell .btn.primary{background:#0f172a;color:#fff}
#app-shell .btn.secondary{border:1.5px solid #0f172a;color:#0f172a}
html.flutter-first-frame #app-shell{display:none}