body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            line-height: 1.6;
        }
        
        .demo-section {
            margin-bottom: 40px;
            padding: 20px;
            border: 1px solid #ddd;
            border-radius: 8px;
            background: #f9f9f9;
        }
        
        .demo-section h2 {
            color: #333;
            border-bottom: 2px solid #007acc;
            padding-bottom: 10px;
        }
        
        .code-example {
            background: #f4f4f4;
            border: 1px solid #ccc;
            border-radius: 4px;
            padding: 15px;
            margin: 10px 0;
            font-family: 'Courier New', monospace;
            overflow-x: auto;
        }
        
        button {
            background: #007acc;
            color: white;
            border: none;
            padding: 10px 15px;
            border-radius: 4px;
            cursor: pointer;
            margin: 5px;
        }
        
        button:hover {
            background: #005a9e;
        }
        
        button.secondary {
            background: #6c757d;
        }
        
        button.success {
            background: #28a745;
        }
        
        button.danger {
            background: #dc3545;
        }
        
        .tabs {
            display: flex;
            border-bottom: 1px solid #ddd;
        }
        
        .tab {
            padding: 10px 20px;
            background: #878787;
            border: 1px solid #ddd;
            border-bottom: none;
            cursor: pointer;
        }
        
        .tab.active {
            background: rgb(30, 129, 57);
            border-bottom: 1px solid white;
        }
        
        .tab-content .content {
            display: none;
            padding: 20px;
            border: 1px solid #ddd;
            border-top: none;
        }
        
        .tab-content .content.active {
            display: block;
        }
        
        .todo-list {
            max-width: 500px;
        }
        
        .todo-input {
            width: 300px;
            padding: 8px;
            margin-right: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
        }
        
        .todos {
            list-style: none;
            padding: 0;
        }
        
        .todo-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px;
            margin: 5px 0;
            background: white;
            border: 1px solid #ddd;
            border-radius: 4px;
        }
        
        .todo-item.completed {
            text-decoration: line-through;
            opacity: 0.6;
            background: #f0f0f0;
        }
        
        .delete-btn {
            background: #dc3545;
            color: white;
            border: none;
            width: 25px;
            height: 25px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 14px;
            padding: 0;
        }
        
        .highlight {
            background: yellow;
            padding: 2px 4px;
        }
        
        .demo-output {
            background: #e8f5e8;
            border: 1px solid #4caf50;
            padding: 10px;
            border-radius: 4px;
            margin: 10px 0;
        }
        
        .form-group {
            margin: 10px 0;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: bold;
        }
        
        .form-group input {
            width: 100%;
            padding: 8px;
            border: 1px solid #ddd;
            border-radius: 4px;
            box-sizing: border-box;
        }
        .form-group .error-message {
            color: red;
        }
        
        .gallery {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 15px;
            margin: 20px 0;
        }
        
        .gallery-item {
            background: white;
            border: 1px solid #ddd;
            border-radius: 8px;
            overflow: hidden;
            transition: transform 0.3s;
        }
        
        .gallery-item:hover {
            transform: scale(1.05);
        }
        
        .gallery-item img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        
        .gallery-item .caption {
            padding: 10px;
        }
        
        .test-result {
            background: #f8f9fa;
            border: 1px solid #dee2e6;
            border-radius: 4px;
            padding: 10px;
            margin: 10px 0;
            font-family: 'Courier New', monospace;
        }
        
        .test-result.success {
            background: #d4edda;
            border-color: #c3e6cb;
            color: #155724;
        }
        
        .test-result.error {
            background: #f8d7da;
            border-color: #f5c6cb;
            color: #721c24;
        }
        
        .test-summary {
            background: #e3f2fd;
            border: 1px solid #90caf9;
            border-radius: 4px;
            padding: 15px;
            margin: 10px 0;
        }

        /* === Fixture Demo Styles === */
        #fixture {
            border: 2px dashed #007acc !important;
            padding: 20px !important;
            min-height: 150px !important;
            background-color: #f8f9fa !important;
            border-radius: 8px !important;
            margin: 15px 0 !important;
            position: relative;
            overflow: auto;
        }

        #fixture::before {
            content: "Live Demo Arena";
            position: absolute;
            top: 0px;
            left: 15px;
            background: #007acc;
            color: white;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.8em;
            font-weight: bold;
        }

        .fixture-content {
            margin-top: 10px;
        }

        .demo-element {
            transition: all 0.3s ease;
            border-radius: 4px;
        }

        .demo-element:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }

        .demo-container {
            border-radius: 4px;
            transition: all 0.3s ease;
        }

        /* Wrapper-Styles für die Demos */
        #fixture section {
            background: linear-gradient(135deg, #4caf50, #81c784) !important;
            border: 2px solid #388e3c !important;
            border-radius: 8px !important;
            padding: 10px !important;
            margin: 8px 0 !important;
            position: relative;
        }

        #fixture section::before {
            content: "section wrapper";
            position: absolute;
            top: -8px;
            right: 10px;
            background: #388e3c;
            color: white;
            padding: 2px 6px;
            border-radius: 3px;
            font-size: 0.7em;
        }

        #fixture article {
            background: linear-gradient(135deg, #ff9800, #ffb74d) !important;
            border: 2px solid #f57c00 !important;
            border-radius: 8px !important;
            padding: 10px !important;
            margin: 8px 0 !important;
            position: relative;
        }

        #fixture article::before {
            content: "article wrapper";
            position: absolute;
            top: -8px;
            right: 10px;
            background: #f57c00;
            color: white;
            padding: 2px 6px;
            border-radius: 3px;
            font-size: 0.7em;
        }

        #fixture .inner-wrapper {
            background: linear-gradient(135deg, #9c27b0, #ba68c8) !important;
            border: 2px dashed #7b1fa2 !important;
            border-radius: 6px !important;
            position: relative;
        }

        #fixture .inner-wrapper::before {
            content: "inner wrapper";
            position: absolute;
            top: -8px;
            right: 10px;
            background: #7b1fa2;
            color: white;
            padding: 2px 6px;
            border-radius: 3px;
            font-size: 0.7em;
        }

        /* Demo Button Styles */
        #demo-wrap {
            background: #4caf50;
        }

        #demo-unwrap {
            background: #f44336;
        }

        #demo-wrapinner {
            background: #9c27b0;
        }

        #reset-fixture {
            background: #ff9800;
        }

        #demo-wrap:hover { background: #388e3c; }
        #demo-unwrap:hover { background: #d32f2f; }
        #demo-wrapinner:hover { background: #7b1fa2; }
        #reset-fixture:hover { background: #f57c00; }