body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

/* Kopfzeile */
header {
    background-color: #be0216;
    color: white;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 20px;
    box-sizing: border-box;
    width: 100%;
    line-height: 0.5;
}

header img {
    max-width: 40px;
    margin-right: 10px;
}

header h3 {
    color: white;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-size: xx-large;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger div {
    background-color: white;
    height: 4px;
    width: 25px;
    margin: 4px 0;
}

/* Flex-Container für Navigationsleiste und Hauptinhalt */
.container {
    display: flex;
    flex: 1;
}

/* Navigationsleiste */
nav {
    background-color: #be0216;
    padding: 20px;
    width: 250px;
    min-height: calc(100vh - 80px);
    box-sizing: border-box;
    position: sticky;
    top: 80px;
    overflow-y: auto;
}

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

nav ul li {
    margin-bottom: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-size: 20px;
    padding: 10px;
    display: block;
    text-align: left;
}

nav ul li a:hover {
    background-color: #ff4053;
}

nav.responsive {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: #be0216;
    z-index: 1000;
}

nav.responsive ul li {
    text-align: center;
}

/* Hauptinhalt */
main {
    margin: 20px;
    max-width: 900px;
    padding: 20px;
    background-color: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    flex: 1;
}

h1, h2 {
    color: #e60023;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

p {
    color: #000000;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

section {
    margin-bottom: 20px;
}

ul {
    list-style-type: disc;
    margin-left: 20px;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        position: fixed;
        justify-content: space-between;
    }
    .hamburger {
        display: flex;
    }
    nav {
        display: none;
    }
    nav.responsive {
        display: flex;
    }
    .container {
        flex-direction: column;
    }
    main {
        margin: 10px;
    }
    img {
        max-width: 100%;
        height: auto;
    }
    section {
        margin-top: 90px;
    }
}

@media (max-width: 480px) {
    header h3 {
        font-size: large;
    }
    nav ul li a {
        font-size: 16px;
        padding: 8px;
    }
    main {
        padding: 10px;
    }
}