body{background:#f0f2f5;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;margin:0;padding:0;display:flex;justify-content:center;align-items:flex-start;min-height:100vh}h2{margin-bottom:1.5rem;color:#333;text-align:center;font-weight:700}input[type=text],textarea{width:100%;padding:.8rem 1rem;font-size:1rem;border:1.8px solid #ddd;border-radius:8px;transition:border-color .3s ease;resize:vertical;font-family:inherit;box-sizing:border-box}input[type=text]:focus,textarea:focus{border-color:#4a90e2;outline:none;box-shadow:0 0 8px #4a90e266}button{background-color:#4a90e2;color:#fff;font-weight:600;padding:.8rem 1.2rem;border:none;border-radius:8px;cursor:pointer;font-size:1rem;width:100%;transition:background-color .3s ease;box-sizing:border-box}button:hover{background-color:#357abd}button:active{background-color:#2a5d8f}textarea[rows="10"]{font-family:Courier New,Courier,monospace;margin-top:1rem;margin-bottom:1.5rem;min-height:180px}br{margin-bottom:.7rem}