body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #1f1f1f;
    color: #f4f4f4;
}

header {
    background-color: #333;
    color: white;
    padding: 1em 0;
    text-align: center;
}

header h1 {
    margin: 0;
}

nav ul {
    list-style: none;
    padding: 0;
    text-align: center;
}

nav ul li {
    display: inline;
    margin: 0 1em;
}

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

main {
    padding: 2em;
    background-color: #1f1f1f;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 160px); /* Adjust based on header/footer height */
}

.card {
    background-color: #333;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    padding: 2em;
    max-width: 800px;
    width: 100%;
    margin-top: 2em;
    color: #f4f4f4;
}

footer {
    text-align: center;
    padding: 1em 0;
    background-color: #333;
    color: white;
    position: relative;
    width: 100%;
}

form {
    display: flex;
    flex-direction: column;
}

form label {
    margin-top: 1em;
}

form input, form textarea {
    padding: 0.5em;
    margin-top: 0.5em;
    border: 1px solid #444;
    border-radius: 5px;
    background-color: #121212;
    color: white;
}

form button {
    margin-top: 1em;
    padding: 0.7em;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

form button:hover {
    background-color: #388E3C;
}