.octal-base64-converter{max-width:1000px;margin:0 auto;padding:2rem;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:#34495e;background-color:#f5f7fa;border-radius:8px;box-shadow:0 2px 15px rgba(0,0,0,.1)}.octal-base64-converter h1{text-align:center;color:#2c3e50;margin-bottom:2rem;font-weight:600;font-size:2rem}.octal-base64-converter .converter-container{display:flex;flex-direction:column;gap:1.5rem}@media(min-width:768px){.octal-base64-converter .converter-container{flex-direction:row}}.octal-base64-converter .converter-container .input-section,.octal-base64-converter .converter-container .output-section{flex:1;display:flex;flex-direction:column}.octal-base64-converter .converter-container label{font-weight:600;margin-bottom:.5rem;color:#2c3e50}.octal-base64-converter .converter-container textarea{width:100%;padding:1rem;border:1px solid #dce1e8;border-radius:4px;resize:vertical;font-family:Consolas,monospace;font-size:1rem;transition:border-color .3s}.octal-base64-converter .converter-container textarea:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px rgba(52,152,219,.2)}.octal-base64-converter .button-group{display:flex;gap:1rem;margin-top:1rem}.octal-base64-converter .button-group button{padding:.75rem 1.5rem;border:none;border-radius:4px;cursor:pointer;font-weight:600;transition:all .3s ease}.octal-base64-converter .button-group button:disabled{opacity:.5;cursor:not-allowed}.octal-base64-converter .button-group .copy-button{background-color:#3498db;color:#fff}.octal-base64-converter .button-group .copy-button:hover:not(:disabled){background-color:rgb(33.1380753138,125.1882845188,186.8619246862)}.octal-base64-converter .button-group .clear-button{background-color:#7f8c8d;color:#fff}.octal-base64-converter .button-group .clear-button:hover:not(:disabled){background-color:hsl(184.2857142857,5.7851239669%,42.5490196078%)}.octal-base64-converter .error-message{color:#e74c3c;background-color:rgba(231,76,60,.1);padding:1rem;border-radius:4px;margin:1.5rem 0;border-left:4px solid #e74c3c}.octal-base64-converter .info-section{margin-top:2.5rem;padding:1.5rem;background-color:#fff;border-radius:8px;border:1px solid #dce1e8}.octal-base64-converter .info-section h2,.octal-base64-converter .info-section h3{color:#2c3e50;margin-bottom:1rem}.octal-base64-converter .info-section h3{margin-top:1.5rem}.octal-base64-converter .info-section ol,.octal-base64-converter .info-section ul{padding-left:1.5rem;margin-bottom:1rem;line-height:1.6}.octal-base64-converter .info-section li{margin-bottom:.5rem}.octal-base64-converter .info-section ul{list-style-type:disc}@media(max-width:767px){.octal-base64-converter{padding:1.5rem}.octal-base64-converter h1{font-size:1.75rem}.octal-base64-converter textarea{min-height:120px}.octal-base64-converter .button-group{justify-content:center}}