body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    margin: 0;
    padding: 0;
}

.container {
    width: 80%;
    margin: auto;
    text-align: center;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1 {
    margin: 0;
}

.settings {
    display: flex;
    align-items: center;
}

select {
    margin-left: 10px;
    padding: 10px 15px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

select:hover {
    background-color: #218838;
}

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

.input-section {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    width: 45%;
}

footer {
    margin-top: 40px;
}