body {
    font-family: Arial, sans-serif;
    background: #f3f6f9;
    padding: 20px;
}

.calculator-container {
    max-width: 420px;
    margin: auto;
    background: #ffffff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    font-size: 22px;
}

.subtitle {
    text-align: center;
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
}

label {
    margin-top: 10px;
    display: block;
    font-weight: bold;
}

select, button {
    width: 100%;
    padding: 10px;
    margin-top: 6px;
    border-radius: 6px;
    border: 1px solid #ccc;
}

button {
    background: #1e88e5;
    color: #fff;
    font-size: 16px;
    margin-top: 15px;
    cursor: pointer;
}

button:hover {
    background: #1565c0;
}

.result {
    margin-top: 20px;
    background: #eef4ff;
    padding: 15px;
    border-radius: 8px;
    font-size: 15px;
}

.disclaimer {
    margin-top: 20px;
    font-size: 12px;
    color: #555;
    line-height: 1.5;
    background: #fafafa;
    padding: 12px;
    border-radius: 8px;
    border-left: 4px solid #ff9800;
}