.calculator {
    max-width: 100%;
    background: #f8f8f8;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    margin: 20px auto;
    font-family: Arial, sans-serif;
}

.calculator h3 {
    text-align: center;
    color: #333;
    margin-bottom: 15px;
}

.calculator label {
    display: block;
    font-size: 14px;
    margin-bottom: 5px;
    color: #555;
}

.calculator input[type="number"],
.calculator input[type="range"] {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
}

.calculator button {
    width: 100%;
    padding: 10px;
    background: #0073e6;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
}

.calculator button:hover {
    background: #005bb5;
}

.calculator .result {
    margin-top: 15px;
    padding: 10px;
    background: #e3f2fd;
    border-radius: 5px;
}