.hc-calculator#hc-algo-comp {
    background: #1e1e1e;
    color: #d4d4d4;
    border-left: 5px solid #007acc;
    border-radius: 8px;
    padding: 30px;
    font-family: 'Consolas', 'Monaco', monospace;
}

.hc-calculator#hc-algo-comp select, .hc-calculator#hc-algo-comp input {
    background: #3c3c3c;
    color: #fff;
    border: 1px solid #555;
    padding: 8px;
}

.hc-algo-res-bigo {
    color: #ce9178;
    font-size: 2em;
}

.hc-result-note {
    color: #6a9955;
    margin-top: 15px;
    font-style: italic;
}

.hc-calculator#hc-algo-comp .hc-btn {
    background: #007acc;
    color: white;
}