* {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    
    a:link, a:visited, a:active, a:hover {
    text-decoration: none;
    color: #2980b9;
    word-break: break-word;
    margin: 0.5rem 0;
    }  

    header {
      text-align: center;
      padding: 40px 20px 20px;
    }  

    ul {
      transform: translateX(20px);
    word-break: break-word;
    margin: 0.5rem 1rem;
    }
    
    .header-category {
      text-align: center;
      padding: 3px;
      color: #aaa;
      font-size: 1.5em;
      color: white;
      text-shadow: 
      1px 0 #000,    /* rechts */
      -1px 0 #000,   /* links */
      0 1px #000,    /* unten */
      0 -1px #000;   /* oben */
    }

    .header-grid {
      display: grid;
      gap: 20px;
      max-width: 1000px;
      margin: 40px auto;
      padding: 0 10px;
    }

    .filter-grid {
      display: grid;
      gap: 20px;
      max-width: 1000px;
      margin: 40px auto;
      padding: 0 10px;
    }

    .content-grid {
      display: grid;
      gap: 20px;
      max-width: 1000px;
      margin: 40px auto;
      padding: 0 10px;
    }

    .header-grid:hover {
      transform: translateY(-4px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }

    body {
      font-family: 'Segoe UI', sans-serif;
      background-color: #333;
      color: #fff;
      padding: 20px;
    }
    
    .footer {
      text-align: center;
      color: #aaa;
      font-size: 0.9rem;
      text-decoration: none;
    }
    
    .header-date {
      text-align: center;
      color: #aaa;
      font-size: 0.9rem;
      text-decoration: none;
    }
    
    .no-link-style {
      color: inherit;
      text-decoration: none;
    }

    .no-link-style:hover {
      transform: translateY(-4px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }

    .app-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
      gap: 20px;
      max-width: 1000px;
      margin: 40px auto;
      padding: 0 10px;
    }

    .app-card-icon {
      background: #ffffff;
      height: 200px;
      border-radius: 16px;
      padding: 24px 16px;
      text-align: center;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      cursor: pointer;
    }

    .filter-selection {
      background: #ffffff;
      min-height: 80px;
      height: auto;
      border-radius: 16px;
      padding: 24px 16px;
      text-align: center;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      cursor: pointer;
      font-size: 2rem;
      display: flex;
      justify-content: space-between;
      gap: 1rem;
      width: 100%;
      flex-wrap: wrap
    }

    .filter-selection label {
      flex: 1;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .app-card {
      background: #ffffff;
      border-radius: 16px;
      padding: 24px 16px;
      text-align: center;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      cursor: pointer;
      display: flex;
      flex-direction: column;
      min-height: 200px;
    }

    .content-card {
      background: #ffffff;
      border-radius: 16px;
      padding: 24px 16px;
      text-align: left;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      cursor: pointer;
      overflow: hidden;
    }

    .app-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }

    .app-icon {
      width: 64px;
      height: 64px;
      border-radius: 14px;
      margin: 0 auto 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2rem;
    }

    .category-name {
      font-size: 0.9rem;
      font-weight: 600;
      color: #1a1a2e;
      margin-bottom: 4px;
    }

    .content-name {
      font-size: 1.5rem;
      font-weight: 600;
      color: #1a1a2e;
      margin-bottom: 4px;
    }

    .subcategory-name {
      font-size: 0.9rem;
      color: #999;
    }

    .content-text {
      font-size: 1.0rem;
      /* color: #1a1a2e; */
      margin-bottom: 8px;
      flex: 1;
      line-height: 1.6;
      color: #34495e;
    }

    .content-text_with_image {
      font-size: 1.0rem;
      /* color: #1a1a2e; */
      margin-bottom: 8px;
      flex: 1;
      line-height: 1.6;
      color: #34495e;
      display: flex;
    }

    .content-list {
      font-size: 1.0rem;
      padding: 16px;
      /* color: #1a1a2e; */
      margin-bottom: 8px;
      transform: translateX(20px);
      flex: 1;
      line-height: 1.6;
      color: #34495e;
    }

    .subcategory-name:hover {
      transform: translateX(-10px);
    }

    .app-name {
      font-size: 0.9rem;
      font-weight: 600;
      color: #1a1a2e;
      margin-bottom: 4px;
    }

    .app-name:hover {
      transform: translateX(-10px);
    }

    .app-description {
      font-size: 0.75rem;
      color: #999;
    }
    
    .image_in_text {
    height: 200px;
    border-radius: 16px;
    float: left;
    margin-right: 10px;
    margin-bottom: 10px;
    -webkit-filter: drop-shadow(5px 5px 5px #222);
    filter: drop-shadow(5px 5px 5px #222);
    }

    .image_in_text:hover {
    width: clamp(300px, 79vw, 940px); /* Min: initial size, Preferred: 79vw, Max: 940px */
    height: auto;
    }