body, html {
			font-family: "Helvetica Neue", Arial, sans-serif;
			color: #263238;
			background-color: #fff;
            margin: 0;
            height: 100%;
        }
        header, footer {
            background-color: #333;
            color: white;
            text-align: center;
            padding: 5px 0;
            position: fixed;
            width: 100%;
            z-index: 1000;
        }
        header {
            top: 0;
        }
        footer {
            bottom: 0;
        }
        nav {
            background-color: #444;
            color: white;
            padding: 5px;
            text-align: center;
            position: fixed;
            width: 100%;
            top: 98px;
            z-index: 999;
        }
        nav ul {
            list-style: none;
			color: white;
            margin: 0;
            display: flex;
            justify-content: center;
        }
        nav ul li {
            margin: 0 15px;
			color: white;
        }
		nav ul li a {
			text-decoration: none;
			color: white;
		}
		.container {
			display: flex;
			width: 100%; 
			height: calc(100vh - 170px); /* Berechnet die Höhe des Viewports minus Header und Footer */
			padding-top: 120px;
			gap: 10px; /* Fügt Abstand zwischen Sidebar und Content hinzu */
		}
		.sidebar {
			min-width: 30%;
			background-color: #f4f4f4;
			overflow-y: auto;
			padding: 17px 20px 0px 20px;
			box-sizing: border-box;
			white-space: wrap;
		}
        .sidebar img {
            width: 100%;
            height: auto;
            margin-bottom: 20px;
        }
        .treeview {
			list-style: none;
			padding-left: 10px;
		}
        .treeview li {
            margin: 10px 0px;
            cursor: pointer;
            position: relative;
            padding-left: 25px;  /* Abstand zwischen Symbol + Text */
        }
        .treeview li:before {
            content: '▶';
            position: absolute;
            left: 0;
			margin: -3px;
            transition: transform 0.3s;
        }
        .treeview li.open:before {
            transform: rotate(90deg);
        }
        .treeview li ul {
            display: none;
            list-style: none;
            padding-left: 20px;
        }
        .treeview li.open > ul {
            display: block;
        }
        .treeview li:hover {
            background-color: #ddd;
        }
        .treeview ul li {
            margin: 10px 0px 0px -20px;
            padding-left: 20px;
            position: relative;
            cursor: pointer;
        }
        .treeview ul li:before {
            content: '►';
            position: absolute;
			margin: 0;
            left: 0;
        }
        .treeview ul li:hover {
            background-color: #eee;
        }
        .treeview ul li ul li {
            cursor: pointer;
            padding-left: 20px;
            position: relative;
        }
        .treeview ul li ul li:before {
            content: '•';
            position: absolute;
            left: 0;
        }
        .treeview ul li ul li:hover {
            background-color: #fff;
        }
        .content {
            flex-grow: 1;
			max-width: 70%;
            padding-left: 25px;
            padding-top: 12px;
            overflow-y: auto;
            background-color: #fff;
        }
        #content-image {
            width: 92%;
            height: auto;
        }
        .slideshow-container {
            position: relative;
            max-width: 100%;
			min-height: 100%;
            margin: auto;
            display: none; /* Initially hidden */

        }
        .slide {
            display: none;
            max-width: 100%;
            min-height: 100%;
        }
        .active {
            display: block;
        }
		.prev, .next {
			display: none; /* Schalter standardmäßig ausgeblendet */
			cursor: pointer;
			position: absolute;
			top: 50%;
			width: auto;
			padding: 16px;
			color: white;
			font-weight: bold;
			font-size: 18px;
			transition: 0.6s ease;
			border-radius: 3px;
			user-select: none;
			background-color: rgba(0, 0, 0, 0.5);
		}
		.prev {
			top: 468px;
			right: 35px;
			border-radius: 3px 0 0 3px;
		}
		.next {
			top: 408px;
			right: 35px;
			border-radius: 0 3px 3px 0;
		}
        .placeholder {
			width: 100%;
            margin-left: 0px;
        }
			img {
            cursor: pointer;
            width: 80%;
			border: 1px solid gray
        }
		.lazy-image {
			opacity: 0;
			transition: opacity 0.5s ease-in-out;
		}

		.lazy-image:has([loading="eager"]) {
			opacity: 1;
		}