.app-container{font-family:Arial,sans-serif;padding:50px;text-align:center}.api-section{background-color:#fafbfc;border:1px solid #e1e4e8;border-radius:12px;display:inline-block;margin-top:30px;padding:20px}button{background-color:#005bf0;border:none;border-radius:6px;color:#fff;cursor:pointer;font-weight:700;padding:12px 24px}button:hover{background-color:#0045c2}.message{color:#28a745;font-weight:700;margin-top:15px}