* {
    box-sizing: border-box;
}
body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
}
.foraj-calculator-container {
    background: #fff;
    margin: 20px auto;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    max-width: 600px;
}
.foraj-calculator-container h2 {
    text-align: center;
    margin-bottom: 10px;
}
.foraj-calculator-container label {
    margin-top: 10px;
    font-weight: bold;
}
.foraj-calculator-container select, 
.foraj-calculator-container input[type="number"],
.foraj-calculator-container .scenario, 
.foraj-calculator-container input[type="text"] {
    width: 100%;
    margin-top: 5px;
    margin-bottom: 15px;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 16px;
}
.foraj-calculator-container small {
    display: block;
    margin-bottom: 10px;
    color: #555;
    font-size: 12px;
}
.checkbox-container {
    margin-bottom: 15px;
}
.checkbox-container label {
    display: block;
    font-weight: normal;
    margin: 5px 0;
}
#result {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
}
#summary {
    margin-top: 10px;
    text-align: left;
    font-size: 14px;
    color: #333;
    line-height: 1.6;
}
#summary h3 {
    margin-bottom: 10px;
    font-size: 16px;
    color: #007BFF;
}
#summary ul {
    list-style-type: none;
    padding-left: 0;
}
#summary ul li {
    margin-bottom: 5px;
}
#summary strong {
    color: #000;
}
#pipeContainer, #pipeDiameterContainer, #isolateContainer, #existentiContainer {
    display: none;
    margin-bottom: 15px;
}
#depthInfo {
    margin-top: 10px;
    font-size: 14px;
    color: #333;
}