:root {
        --primary-accent: #6A5AF9;
        --primary-accent-light-bg: #f5f3ff;
        --text-dark: #212529;
        --text-muted: #6c757d;
        --light-bg: #F8F9FA;
        --white-bg: #FFFFFF;
        --border-color: #EAEAEA;
        --border-radius: 16px;
        --shadow: 0 4px 15px rgba(0,0,0,0.07);
    }

    /* Haupt-Container für die Übersicht */
    .tool-archive-container {
        max-width: 1400px;
        margin: auto;
        padding: 2rem;
    }

    /* --- Header / Filter Sektion --- */
    .filter-header {
        background-color: var(--white-bg);
        padding: 2rem;
        border-radius: var(--border-radius);
        box-shadow: var(--shadow);
        margin-bottom: 3rem;
    }
    
    .search-container {
        position: relative;
        margin-bottom: 2rem;
    }

    .search-input {
        width: 100%;
        padding: 1rem 1rem 1rem 3.5rem;
        border-radius: 12px;
        border: 1px solid var(--border-color);
        font-size: 1rem;
        font-family: 'Poppins', sans-serif;
        box-sizing: border-box;
        transition: border-color 0.2s, box-shadow 0.2s;
    }

    .search-input:focus {
        outline: none;
        border-color: var(--primary-accent);
        box-shadow: 0 0 0 3px rgba(106, 90, 249, 0.2);
    }

    .search-icon {
        position: absolute;
        left: 1rem;
        top: 50%;
        transform: translateY(-50%);
        width: 24px;
        height: 24px;
        color: var(--text-muted);
    }

    .category-wrapper {
        position: relative;
    }

    .category-filters {
        display: flex;
        gap: 0.75rem;
        overflow-x: auto;
        padding-bottom: 1rem;
        -ms-overflow-style: none;
        scrollbar-width: none;
        scroll-behavior: smooth;
    }
    .category-filters::-webkit-scrollbar {
        display: none;
    }
    
    .category-filters.expanded {
        flex-wrap: wrap;
        overflow-x: visible;
    }

    .category-btn {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        padding: 0.6rem 1.2rem;
        border: 1px solid var(--border-color);
        background-color: transparent;
        border-radius: 50px;
        font-family: 'Poppins', sans-serif;
        font-size: 0.9rem;
        font-weight: 500;
        cursor: pointer;
        transition: background-color 0.2s, color 0.2s, border-color 0.2s;
        white-space: nowrap;
    }
    
    .category-btn:hover {
        background-color: var(--primary-accent-light-bg);
        border-color: var(--primary-accent);
    }

    .category-btn.active {
        background-color: var(--primary-accent);
        color: white;
        border-color: var(--primary-accent);
    }

    .category-btn svg {
        width: 18px;
        height: 18px;
    }
    
    .scroll-btn {
        display: none; /* Hidden by default, shown on desktop */
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        background-color: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(4px);
        border: 1px solid var(--border-color);
        border-radius: 50%;
        width: 40px;
        height: 40px;
        cursor: pointer;
        z-index: 10;
        align-items: center;
        justify-content: center;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }
    
    .scroll-btn:hover {
        background-color: white;
    }

    #scrollLeftBtn { left: -20px; }
    #scrollRightBtn { right: -20px; }
    
    @media (min-width: 1024px) {
        .scroll-btn { display: flex; }
    }

    .expand-categories-container {
        margin-top: 1rem;
        text-align: center;
    }

    #expandCategoriesBtn {
        font-family: 'Poppins', sans-serif;
        font-weight: 600;
        color: var(--primary-accent);
        background: none;
        border: none;
        cursor: pointer;
        padding: 0.5rem;
    }

    /* --- Tool Grid --- */
    .tool-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 2rem;
    }

    .tool-tile {
        background-color: var(--white-bg);
        border-radius: var(--border-radius);
        box-shadow: var(--shadow);
        overflow: hidden;
        display: flex;
        flex-direction: column;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .tool-tile:hover {
        transform: translateY(-8px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    }

    /* NEU: Container für das Logo oben */
    .tool-tile-logo-area {
        background-color: #f8f9fa; /* Heller Hintergrund für den Logo-Bereich */
        height: 180px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 1rem;
        box-sizing: border-box;
    }

    .tool-tile-logo {
        width: 80px; /* Größeres Logo */
        height: 80px;
        border-radius: 16px;
        object-fit: cover;
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }

    .tool-tile-logo-fallback svg {
        width: 60px;
        height: 60px;
        color: #cccccc;
    }

    .tool-tile-content {
        padding: 1.5rem;
        display: flex;
        flex-direction: column;
        flex-grow: 1;
    }

    .tool-tile-content h3 {
        margin: 0 0 0.5rem 0;
        font-size: 1.25rem;
        text-align: center;
    }

    .tool-tile-main-category {
        color: var(--text-muted);
        font-size: 0.9rem;
        margin-bottom: 1rem;
        text-align: center;
    }

    .tool-tile-tags {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
        margin-bottom: 1.5rem;
    }

    .tool-tile-tags .tag {
        font-size: 0.75rem;
        background-color: #f0f0f0;
        padding: 0.25rem 0.7rem;
        border-radius: 15px;
        font-weight: 500;
    }
    
    .tool-tile-actions {
        margin-top: auto;
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .btn-primary {
        display: block;
        text-align: center;
        background-color: var(--primary-accent);
        color: white;
        padding: 0.75rem 1.5rem;
        border-radius: 8px;
        text-decoration: none;
        font-weight: 600;
        transition: background-color 0.2s;
        cursor: pointer;
        border: none;
    }
    .btn-primary:hover {
        background-color: #5244d4;
    }

    .link-secondary {
        text-align: center;
        color: var(--primary-accent);
        text-decoration: none;
        font-weight: 500;
        font-size: 0.9rem;
    }
    .link-secondary:hover {
        text-decoration: underline;
    }

.tool-archive-container .search-input {
    padding-left: 3.5rem !important;