.cockatiel-calculator {
    max-width: 400px;
    padding: 20px;
    background: #f8f5f0;
    border-radius: 10px;
    text-align: center;
}

.cockatiel-calculator h2, 
.cockatiel-calculator h3 {
    color: #333;
}

.cockatiel-calculator .parent {
    margin-bottom: 15px;
}

.cockatiel-calculator select, 
.cockatiel-calculator button {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    border: 2px solid #daa520;
    border-radius: 5px;
}

.cockatiel-calculator button {
    background: #28a745;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

.cockatiel-calculator #results {
    margin-top: 20px;
}

.cockatiel-calculator ul {
    list-style: none;
    padding: 0;
}

.cockatiel-calculator ul li {
    background: #ffffff;
    margin: 5px 0;
    padding: 10px;
    border-radius: 5px;
}