*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#0f172a;color:#f1f5f9;min-height:100vh;display:flex;align-items:center;justify-content:center}.card{background:hsla(0,0%,100%,.05);border:1px solid hsla(0,0%,100%,.1);border-radius:16px;padding:32px;max-width:400px;width:100%;text-align:center}.card h1{font-size:1.25rem;font-weight:700;margin-bottom:12px}.card p{font-size:.875rem;color:#94a3b8;margin-bottom:20px;line-height:1.5}.btn-retry{margin-top:16px;padding:10px 20px;border-radius:10px;background:#2563eb;color:#fff;font-weight:600;border:none;cursor:pointer;font-size:.875rem}.btn-retry:hover{background:#1d4ed8}#google-signin-button{display:flex;justify-content:center;min-height:44px}