body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;color:#333}.container{padding:10px;font-family:Arial,sans-serif;max-width:600px;margin:0 auto;text-align:center}h1{font-size:2rem;margin-bottom:20px;color:#333}.form-container{display:flex;flex-direction:column;align-items:center;gap:20px}.file-input{padding:10px;font-size:1rem;border:1px solid #ccc;border-radius:5px;width:80%;max-width:400px;background-color:#f9f9f9}.file-input:focus{outline:none;border-color:#007bff;background-color:#fff}.submit-button{padding:12px 20px;background-color:#007bff;color:#fff;border:none;border-radius:5px;cursor:pointer;font-size:1rem;width:80%;max-width:400px}.submit-button:disabled{background-color:#ccc;cursor:not-allowed}.submit-button:hover:enabled{background-color:#0056b3}.error-message{color:red;font-size:1rem;margin-top:10px}.data-container{margin-top:20px;padding:20px;border:1px solid #ddd;border-radius:8px;background-color:#f4f4f4;text-align:left}h2{font-size:1.5rem;margin-bottom:10px;color:#333}p{font-size:1rem;color:#333;margin:5px 0}strong{font-weight:700}