*{margin:0;padding:0;box-sizing:border-box;font-family:Inter,Segoe UI,Roboto,sans-serif}body{background:linear-gradient(135deg,#0a0a0f,#1f1f27);color:#e0e0e0;min-height:100vh;display:flex;justify-content:center;align-items:center}.container{background:#1e1e28d9;border-radius:16px;padding:3rem 2.5rem;text-align:center;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 8px 24px #00000080;max-width:400px;width:90%;transition:transform .3s ease,box-shadow .3s ease}.container:hover{transform:translateY(-4px);box-shadow:0 12px 36px #0009}.app-icon{width:96px;height:96px;margin-bottom:24px;border-radius:16px;box-shadow:0 4px 12px #0ff3}h1{font-size:1.8rem;margin-bottom:.5rem;color:#00fff0}p{font-size:1rem;color:silver;margin-bottom:1.5rem}.install-button{display:inline-block;padding:12px 28px;background:linear-gradient(135deg,#00fff0,#00d1d1);color:#0a0a0f;font-weight:600;font-size:1rem;border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #0ff6}.install-button:hover{background:linear-gradient(135deg,#00d1d1,#00fff0);box-shadow:0 6px 16px #00ffff80;transform:translateY(-2px)}.hidden{display:none}.link-to-app{display:block;margin-top:16px;color:#80ffff;text-decoration:none;font-weight:500;opacity:.8;transition:opacity .2s ease}.link-to-app:hover{opacity:1}@media(max-width:500px){.container{padding:2rem 1.5rem}h1{font-size:1.5rem}.install-button{width:100%}}