/* Allgemeine Stileinstellungen */
body {
    font-family: Arial, sans-serif;
    background-color: #1a1a1a;
    color: #fff;
    margin: 0;
    padding: 0;
}

header {
    background-color: #000;
    padding: 20px;
}

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

header nav ul li {
    display: inline;
    margin-right: 15px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
}

h1, h2, h3 {
    color: #fff;
}

footer {
    background-color: #000;
    text-align: center;
    padding: 10px;
    color: #fff;
}

section {
    margin: 20px;
}

button {
    padding: 10px 15px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    cursor: pointer;
}

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

form {
    max-width: 600px;
    margin: auto;
}