.freelance-calculator {
    max-width: 600px;
    margin: 0 auto;
    background: #f9f9f9;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(0,0,0,0.05);
    font-family: Arial, sans-serif;
}
.freelance-calculator h2 {
    text-align: center;
    margin-bottom: 20px;
}
.freelance-calculator label {
    display: block;
    margin: 10px 0 5px;
}
.freelance-calculator input,
.freelance-calculator input[type=range] {
    width: 100%;
    padding: 8px;
    border-radius: 6px;
    border: 1px solid #ccc;
}
.freelance-calculator .output {
    margin-top: 20px;
    background: #fff;
    padding: 15px;
    border-radius: 8px;
}
.bar-chart {
    height: 150px;
    margin-top: 20px;
}