body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f4f4f9;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #333;
}

.converter {
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
}

.section {
    width: 45%;
}

h2 {
    margin-bottom: 10px;
    color: #555;
}

input, select {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #45a049;
}

table {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
}

th, td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}

td.light-grey {
    background-color: #eaeaea;
}

#resultDisplay {
    margin-top: 10px;
    font-size: 16px;
    color: red;
}