body {
    font-family: 'Open Sans', sans-serif;
    background-color: #F0EDE5;
    color: #3E2723;
    margin: 0;
    padding: 0;
}

header {
    background-color: #004D40;
    color: #FFFDE7;
    padding: 20px;
    text-align: center;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: #FFFDE7;
    text-decoration: none;
}

.calculator-section {
    display: flex;
    justify-content: center;
    padding: 50px 0;
}

.calculator-card {
    background-color: #E0F7FA;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 300px;
}

label, input, button {
    display: block;
    width: 100%;
    margin-bottom: 15px;
}

button {
    background-color: #004D40;
    color: #FFFDE7;
    border: none;
    padding: 10px;
    cursor: pointer;
    border-radius: 5px;
}

footer {
    background-color: #004D40;
    color: #FFFDE7;
    padding: 10px;
    text-align: center;
    font-size: 12px;
    position: sticky;
    bottom: 0;
    width: 100%;
}