#result {
    margin-top: 20px;
    padding: 20px;
    background-color: #f8fbfd;
    border-radius: 6px;
    border: 1px solid #d6e4f0;
    font-family: Arial, sans-serif;
    color: #333;
    font-size: 1rem;
    line-height: 110%;
}

#result h3 {
    margin-top: 0;
    color: #2c5282;
    padding-bottom: 8px;
    border-bottom: 1px solid #e2e8f0;
}

.formula {
    background-color: #fff;
    padding: 12px 15px;
    border-radius: 5px;
    margin-bottom: 15px;
    border-left: 3px solid #4299e1;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.formula strong {
    color: #2b6cb0;
}

.step {
    padding: 8px 12px;
    margin-bottom: 8px;
    background-color: #ebf8ff;
    border-radius: 4px;
}

.step strong {
    color: #4a5568;
}

#result h4 {
    margin: 15px 0 10px 0;
    color: #4a5568;
    font-size: 15px;
}

sup {
    font-size: 0.8em;
    vertical-align: super;
}