.calculator-container {
    max-width: 100%;
    margin: 20px;
    padding: 20px;
    background-color: #f0f8ff; /* Light blue background */
    border-radius: 10px;
    text-align: left;
    font-family: Arial, sans-serif;
}

h1, h2 {
    color: #000; /* Black */
    font-size: 28px;
}

.input-section label {
    display: block;
    margin: 10px 0 5px;
    font-size: 20px;
    color: #000; /* Black */
}

.input-section input, .input-section select {
    width: 100%;
    max-width: 300px;
    padding: 10px;
    margin-bottom: 10px;
    font-size: 18px;
    border: 1px solid #000; /* Black border */
    border-radius: 5px;
    background-color: #fff; /* White */
}

.date-input {
    display: flex;
    gap: 10px;
}

button {
    background-color: #000; /* Black */
    color: #fff; /* White */
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 20px;
    cursor: pointer;
}

button:hover {
    background-color: #333; /* Darker black */
}

.result-section {
    margin-top: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

th, td {
    border: 1px solid #000; /* Black */
    padding: 10px;
    text-align: left;
    font-size: 18px;
    background-color: #fff; /* White */
}

th {
    background-color: #e6f0fa; /* Lighter blue */
    color: #000; /* Black */
}

@media (max-width: 600px) {
    h1, h2 {
        font-size: 24px;
    }

    .input-section label, .input-section input, .input-section select, th, td {
        font-size: 16px;
    }

    button {
        font-size: 18px;
    }
}