/* ============================================
   ABESOBJECTS MODULE STYLES
   Version: 2.0
   Description: Consolidated styles for all AbesObjects DNN modules
   Modules: List, Detail, Filter, Contact Person
   ============================================ */

/* ============================================
   1. CSS VARIABLES & DEFAULTS
   ============================================ */
:root {
    /* Default-Farben (werden von StylePartial überschrieben) */
    --course-base-color: #0d6efd;
    --course-base-hover: #0b5ed7;
    --course-base-dark: #0a58ca;
    --course-base-light: rgba(13, 110, 253, 0.1);
    --course-base-text: white;
    
    /* Weitere gemeinsame Variablen */
    --course-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --course-border-radius: 0.375rem;
    --course-transition: all 0.2s ease-in-out;
}

/* ============================================
   2. COMMON COMPONENTS (Alle Module)
   ============================================ */

/* Cursor & Basis-Interaktionen */
.cursor-pointer {
    cursor: pointer;
}

/* Buttons - Gemeinsam für alle Module */
.course-btn-primary,
.course-filter-submit {
    background-color: var(--course-base-color) !important;
    border-color: var(--course-base-color) !important;
    color: var(--course-base-text) !important;
    transition: var(--course-transition);
}

.course-btn-primary:hover,
.course-filter-submit:hover {
    background-color: var(--course-base-dark) !important;
    border-color: var(--course-base-dark) !important;
}

.course-btn-outline {
    color: var(--course-base-color) !important;
    border-color: var(--course-base-color) !important;
    background-color: transparent !important;
}

.course-btn-outline:hover {
    background-color: var(--course-base-color) !important;
    color: var(--course-base-text) !important;
}

/* Titel - Gemeinsam */
.course-main-title,
.course-title,
.course-count-title,
.course-detail-title,
.course-filter-title {
    color: var(--course-base-color) !important;
}

/* Badges */
.course-active-filter-badge {
    background-color: var(--course-base-color) !important;
    color: var(--course-base-text) !important;
    position: relative !important;
    padding-right: 0.5rem !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.25rem !important;
}

.course-active-filter-badge .btn-close {
    background: none !important;
    border: none !important;
    color: white !important;
    font-size: 1rem !important;
    line-height: 1 !important;
    padding: 2px 4px !important;
    margin: 0 0 0 0.5rem !important;
    width: auto !important;
    height: auto !important;
    opacity: 0.8 !important;
}

.course-active-filter-badge .btn-close:before {
    content: "x" !important;
    color: white !important;
    font-weight: bold !important;
    font-size: 12px !important;
    display: inline-block !important;
    text-transform: uppercase !important;
}

.course-active-filter-badge .btn-close:hover {
    opacity: 1 !important;
    background-color: rgba(255, 255, 255, 0.2) !important;
    border-radius: 3px !important;
}

/* Pagination */
.course-pagination .page-link,
.pagination .page-link {
    color: var(--course-base-color) !important;
    transition: var(--course-transition);
}

.course-pagination .page-link:hover,
.pagination .page-link:hover {
    color: var(--course-base-color) !important;
    border-color: var(--course-base-hover) !important;
    transform: translateY(-1px);
}

.course-pagination .page-item.active .page-link,
.pagination .page-item.active .page-link {
    background-color: var(--course-base-color) !important;
    border-color: var(--course-base-color) !important;
    color: var(--course-base-text) !important;
}

/* Filter Items - Gemeinsam für List & Filter Module */
.filter-item {
    transition: var(--course-transition);
    border-radius: 0.25rem;
    user-select: none;
}

.filter-item:hover {
    background-color: var(--bs-gray-100) !important;
    transform: translateX(5px);
}

.filter-item.active {
    background-color: var(--bs-gray-100) !important;
    font-weight: 600;
    color: var(--bs-dark, #212529) !important;
    border-left: 4px solid var(--course-base-color) !important;
}

.filter-item:last-child {
    border-bottom: none !important;
}

/* Loading Spinner */
.course-loading {
    min-height: 200px;
}

.course-loading .spinner-border {
    color: var(--course-base-color) !important;
}

/* ============================================
   3. LIST MODULE SPECIFIC STYLES
   ============================================ */

/* List spezifische Filter-Header */
.course-filter-header {
    background-color: var(--course-base-color) !important;
    color: var(--course-base-text) !important;
}

.course-filter-header:hover {
    background-color: var(--course-base-color) !important;
    color: var(--course-base-text) !important;
}

.course-filter-header .card-title {
    color: var(--course-base-text) !important;
}

/* List Karten */
.course-list-content .card {
    transition: all 0.3s ease-in-out;
    border: 1px solid var(--bs-border-color);
    animation: slideIn 0.3s ease-out;
}

.course-list-content .card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
    border-color: var(--course-base-color) !important;
}

.course-list-content .card:focus-within {
    border-color: var(--course-base-color) !important;
    outline: 2px solid var(--course-base-color);
    outline-offset: 2px;
}

.course-list-content .card a {
    color: var(--course-base-color);
}

.course-list-content .card a:hover {
    color: var(--course-base-dark);
}

/* Card Title Styling */
.card-title {
    color: var(--course-base-color) !important;
    font-weight: 600;
}

/* Suchfeld Container mit BaseColor-Integration */
.course-search-group {
    transition: var(--course-transition);
    border-radius: var(--course-border-radius);
    overflow: hidden;
}

.course-search-group.course-search-focused {
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--course-base-color) 25%, transparent);
    border-color: var(--course-base-color);
}

.course-search-group:hover:not(.course-search-focused) {
    border-color: var(--course-base-color);
    box-shadow: 0 0 0 1px rgba(13, 110, 253, 0.15);
}

/* Such-Icon mit BaseColor */
.course-search-icon {
    background-color: var(--course-base-color);
    border-color: var(--course-base-color);
    color: white;
    transition: var(--course-transition);
    position: relative;
}

.course-search-icon.course-search-loading-state {
    background-color: var(--course-base-dark);
}

.course-search-focused .course-search-icon {
    background-color: var(--course-base-dark);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

/* Suchfeld Input */
.course-search-input {
    border-left: none;
    font-size: 0.95rem;
    padding: 0.625rem 0.75rem;
    transition: var(--course-transition);
}

.course-search-input::placeholder {
    color: #6c757d;
    opacity: 0.8;
    font-style: italic;
    font-size: 0.9rem;
}

.course-search-input:focus {
    border-color: var(--course-base-color);
    box-shadow: none;
    outline: none;
}

/* Clear Button */
.course-search-clear {
    border-left: none;
    border-color: var(--bs-border-color);
    color: #6c757d;
    transition: var(--course-transition);
    padding: 0.625rem 0.75rem;
}

.course-search-clear:hover {
    background-color: var(--course-base-color);
    border-color: var(--course-base-color);
    color: white;
    transform: scale(1.05);
}

.course-search-clear:focus {
    outline: 2px solid var(--course-base-color);
    outline-offset: 2px;
    background-color: var(--course-base-color);
    border-color: var(--course-base-color);
    color: white;
}

.course-search-clear:active {
    transform: scale(0.95);
}

/* Such-Hilfe Text */
.course-search-help {
    font-size: 0.8rem;
    margin-top: 0.25rem;
    color: #6c757d;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease-in-out;
    pointer-events: none;
}

.course-search-group.course-search-focused + .course-search-help {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* ============================================
   4. DETAIL MODULE SPECIFIC STYLES
   ============================================ */

/* Detail Container */
.course-detail-container {
    max-width: 1200px;
    margin: 0 auto;
}

.course-detail-header {
    margin-bottom: 2rem;
}

.course-detail-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.course-detail-subtitle {
    color: #666;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.course-description {
    font-size: 1rem;
    line-height: 1.6;
    color: #333;
    margin-bottom: 2rem;
}

/* Register Button */
.course-register-main-btn {
    background-color: var(--course-base-color);
    color: var(--course-base-text) !important;
    padding: 0.75rem 2rem;
    border-radius: var(--course-border-radius);
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 2rem;
    transition: var(--course-transition);
}

.course-register-main-btn:hover {
    background-color: color-mix(in srgb, var(--course-base-color) 90%, black);
    color: var(--course-base-text) !important;
    text-decoration: none;
}

/* Contact Person Card */
.contact-person-card {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.contact-person-header {
    color: var(--course-base-color);
    font-size: 1.1rem;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

.contact-person-image {
    width: 120px;
    height: 120px;
    border-radius: 0.5rem;
    object-fit: cover;
    margin-bottom: 1rem;
}

.contact-person-name {
    font-weight: bold;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.contact-person-title {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.contact-info i {
    color: var(--course-base-color);
    width: 16px;
}

/* Expandable Sections */
.expandable-section {
    margin-bottom: 1rem;
}

.expandable-header {
    background-color: var(--course-base-color);
    color: var(--course-base-text);
    padding: 1rem 1.5rem;
    border: none;
    width: 100%;
    text-align: left;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    border-radius: var(--course-border-radius);
    transition: var(--course-transition);
}

.expandable-header:hover {
    background-color: color-mix(in srgb, var(--course-base-color) 90%, black);
}

.expandable-header.collapsed::before {
    content: "+";
    font-size: 1.2rem;
    font-weight: 900;
    margin-right: 1rem;
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}

.expandable-header:not(.collapsed)::before {
    content: "−";
    font-size: 1.2rem;
    font-weight: 900;
    margin-right: 1rem;
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}

.expandable-content {
    background: white;
    border: 1px solid #dee2e6;
    border-top: none;
    padding: 1.5rem;
    border-radius: 0 0 var(--course-border-radius) var(--course-border-radius);
}

.content-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.content-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f0f0f0;
    position: relative;
    padding-left: 1.5rem;
}

.content-list li:last-child {
    border-bottom: none;
}

.content-list li::before {
    content: "●";
    color: var(--course-base-color);
    font-size: 1.2rem;
    position: absolute;
    left: 0;
    top: 0.5rem;
}

/* Course Info Sidebar */
.course-info-sidebar {
    background: linear-gradient(135deg, var(--course-base-color), color-mix(in srgb, var(--course-base-color) 80%, orange));
    color: var(--course-base-text);
    padding: 2rem;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
}

.course-info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.course-info-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.course-info-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.course-info-content {
    flex-grow: 1;
}

.course-info-label {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 0.25rem;
}

.course-info-value {
    font-weight: bold;
    font-size: 1rem;
}

/* Course Dates Section */
.course-dates-section {
    margin-top: 2rem;
}

.course-dates-title {
    color: var(--course-base-color);
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
}

.course-date-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border: 1px solid #dee2e6;
    border-radius: var(--course-border-radius);
    margin-bottom: 0.5rem;
    background: white;
    cursor: pointer;
    transition: var(--course-transition);
}

.course-date-item.expanded {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-bottom: none;
    margin-bottom: 1px;
}

.course-date-item:hover {
    background-color: #f8f9fa;
}

.course-date-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.course-date-icon {
    width: 40px;
    height: 40px;
    background: var(--course-base-color);
    color: white;
    border-radius: var(--course-border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.course-date-text {
    font-weight: 500;
}

.course-booking-btn {
    background-color: var(--course-base-color);
    color: white;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: var(--course-border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--course-transition);
}

.course-booking-btn:hover {
    background-color: color-mix(in srgb, var(--course-base-color) 90%, black);
}

.course-more-info-btn {
    background-color: var(--course-base-color);
    color: var(--course-base-text) !important;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--course-border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--course-transition);
    width: 100%;
    margin-top: 0.5rem;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    font-size: 0.9rem;
}

.course-more-info-btn:hover {
    background-color: color-mix(in srgb, var(--course-base-color) 90%, black);
    color: var(--course-base-text) !important;
    text-decoration: none;
}

.course-date-details {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-top: none;
    padding: 1rem;
    border-radius: 0 0 var(--course-border-radius) var(--course-border-radius);
    display: none;
    margin-bottom: 0.5rem;
}

.course-date-details.show {
    display: block;
}

/* Course Features Grid */
.course-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 0.5rem;
}

.course-feature {
    text-align: center;
    padding: 0.5rem;
}

.course-feature-icon {
    width: 60px;
    height: 60px;
    background: white;
    color: var(--course-base-color);
    border: 2px solid var(--course-base-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.course-feature-icon-available {
    background: white;
    color: #198754;
    border-color: #198754;
}

.course-feature-title {
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: #333;
}

.course-feature-description {
    font-size: 0.9rem;
    color: #666;
}

/* Contact CTA */
.contact-cta {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 2rem;
    border-radius: 0.5rem;
    text-align: center;
    margin-top: 2rem;
}

.contact-cta-title {
    color: var(--course-base-color);
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.contact-cta-phone {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--course-base-color) !important;
    text-decoration: none;
}

.contact-cta-phone:hover {
    color: color-mix(in srgb, var(--course-base-color) 80%, black) !important;
}

/* ============================================
   5. FILTER MODULE SPECIFIC STYLES
   ============================================ */

/* Filter-Wrapper - Main Container */
.course-filter-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Filter-Titel Styling */
.course-filter-title {
    font-weight: 600;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--course-base-light);
    padding-bottom: 0.5rem;
}

.course-filter-title i {
    color: var(--course-base-color);
}

/* Suchfeld Styling */
.course-filter-search .input-group-text {
    background-color: var(--course-base-color);
    border-color: var(--course-base-color);
    color: var(--course-base-text);
}

.course-filter-search .form-control:focus {
    border-color: var(--course-base-color);
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--course-base-color) 25%, transparent);
}

/* Filter-Cards */
.course-filter-card {
    border: 1px solid var(--course-base-light);
    border-radius: var(--course-border-radius);
    box-shadow: var(--course-shadow);
    transition: var(--course-transition);
    overflow: hidden;
}

.course-filter-card:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

/* Filter-Karten Header */
.course-filter-header {
    border: none;
    border-radius: var(--course-border-radius) var(--course-border-radius) 0 0;
    transition: var(--course-transition);
}

.course-filter-header:hover {
    transform: translateY(-1px);
    box-shadow: var(--course-shadow);
}

.course-filter-header .fas {
    color: var(--course-base-text) !important;
}

/* Filter-Karten Körper */
.course-filter-card .card-body {
    padding: 1rem;
    background: white;
}

/* Filter-Items für Filter-Modul */
#filter-[data-module-id] .filter-item {
    transition: var(--course-transition);
    border-bottom-color: var(--course-base-light) !important;
    position: relative;
}

#filter-[data-module-id] .filter-item:hover {
    background-color: var(--course-base-light) !important;
    color: var(--course-base-color) !important;
    padding-left: 1rem !important;
}

#filter-[data-module-id] .filter-item:focus {
    outline: 2px solid var(--course-base-color);
    outline-offset: -2px;
    background-color: var(--course-base-light) !important;
}

#filter-[data-module-id] .filter-item.active {
    background-color: var(--course-base-color) !important;
    color: var(--course-base-text) !important;
    border-left: 4px solid var(--course-base-hover) !important;
    font-weight: 500;
}

#filter-[data-module-id] .filter-item.active .fas {
    color: var(--course-base-text) !important;
}

/* Filter-Aktionen (Buttons) */
.course-filter-submit {
    border-radius: var(--course-border-radius);
    transition: var(--course-transition);
    font-weight: 500;
}

.course-filter-submit:hover {
    transform: translateY(-1px);
    box-shadow: var(--course-shadow);
}

.course-filter-reset {
    border-color: var(--course-base-color) !important;
    color: var(--course-base-color) !important;
    border-radius: var(--course-border-radius);
    transition: var(--course-transition);
}

/* ============================================
   EXTERNAL FILTER DETECTION STATES          
   ============================================ */

/* External Filter Detection Container */
.course-list-external-filter-detector {
    position: relative;
    min-height: 50px;
}

/* Hide internal filters when external detected */
.course-list-external-filter-detector[data-external-detected="true"] .course-list-internal-filters {
    display: none !important;
    opacity: 0;
    transform: translateY(-10px);
}

/* Show external info when external detected */
.course-list-external-filter-detector[data-external-detected="true"] .course-list-external-filter-info {
    display: block !important;
    opacity: 1;
    transform: translateY(0);
}

/* Transition for filter switching */
.course-list-internal-filters {
    transition: all 0.3s ease-in-out;
    opacity: 1;
    transform: translateY(0);
}

.course-list-internal-filters.fading {
    opacity: 0.5;
    transform: translateY(-5px);
}

.course-filter-reset:hover {
    background-color: var(--course-base-color) !important;
    border-color: var(--course-base-color) !important;
    color: var(--course-base-text) !important;
}

/* Aktive Filter Anzeige */
.course-active-filters .h6 {
    color: var(--course-base-color) !important;
    font-weight: 600;
}

/* Collapse-Animationen verbessern */
.course-filter-header[aria-expanded="false"] .fa-chevron-down {
    transform: rotate(-90deg);
    transition: transform 0.2s ease;
}

.course-filter-header[aria-expanded="true"] .fa-chevron-down {
    transform: rotate(0deg);
    transition: transform 0.2s ease;
}

/* ============================================
   6. CONTACT PERSON MODULE SPECIFIC
   ============================================ */

/* Ansprechpartner nutzt Detail-Styles - keine zusätzlichen Styles nötig */
/* Alle contact-person Styles sind bereits in Detail-Section definiert */

/* ============================================
   7. ANIMATIONS
   ============================================ */

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Loading Animation für Such-Icon */
.course-search-icon-loading {
    animation: spin 1s linear infinite;
}

/* ============================================
   8. RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 991.98px) {
    /* Filter-Cards auf mobilen Geräten kompakter */
    .course-list-filter .card-body {
        padding: 0.75rem;
    }

    .filter-item {
        padding: 0.5rem !important;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .course-detail-title {
        font-size: 2rem;
    }
    
    .course-date-item {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .course-features-grid {
        grid-template-columns: 1fr;
    }
    
    .course-filter-actions {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .course-filter-actions .btn {
        width: 100%;
        margin: 0 !important;
    }
    
    .course-filter-title {
        font-size: 1.1rem;
        text-align: center;
    }
    
    .course-filter-card {
        margin-bottom: 1rem;
    }
}

@media (max-width: 575.98px) {
    .display-6 {
        font-size: 1.5rem;
    }

    .card-title {
        font-size: 1.1rem;
    }

    .btn {
        font-size: 0.9rem;
        padding: 0.5rem 1rem;
    }
    
    .course-search-input {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: 0.75rem;
    }

    .course-search-input::placeholder {
        font-size: 0.85rem;
    }

    .course-search-help {
        font-size: 0.75rem;
    }
    
    .filter-item {
        padding: 0.75rem !important;
        font-size: 0.9rem;
    }
    
    .course-filter-header {
        padding: 0.75rem;
    }
    
    .course-filter-header .card-title {
        font-size: 0.95rem;
    }
}

/* ============================================
   9. ACCESSIBILITY
   ============================================ */

/* Screen Reader Only Content */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Fokus-Indikatoren für Tastatur-Navigation */
.filter-item:focus,
.card-header[role="button"]:focus,
.page-link:focus,
.btn:focus {
    outline: 3px solid var(--course-base-color) !important;
    outline-offset: 2px !important;
    box-shadow: 0 0 0 2px #ffffff, 0 0 0 5px var(--course-base-color) !important;
}

.filter-item:focus.active {
    outline-color: var(--course-base-color) !important;
}

/* Skip Links für Tastatur-Navigation */
.skip-link {
    position: absolute;
    left: -10000px;
    background: var(--course-base-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
}

.skip-link:focus {
    left: 6px;
    top: 6px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .filter-item:hover {
        transform: none !important;
    }

    .course-list-content .card:hover {
        transform: none !important;
    }

    .page-link:hover {
        transform: none !important;
    }
    
    .course-filter-card:hover,
    .course-filter-submit:hover,
    .course-search-clear:hover {
        transform: none !important;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .filter-item:focus,
    .card-header[role="button"]:focus {
        outline: 3px solid !important;
        outline-color: HighlightText !important;
    }

    .filter-item[aria-checked="true"],
    .filter-item.active {
        border-left-width: 6px !important;
        border-left-color: HighlightText !important;
    }
    
    .course-filter-card {
        border-width: 2px;
    }
    
    .course-search-group.course-search-focused {
        outline: 3px solid HighlightText;
        box-shadow: none;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .course-search-input::placeholder {
        color: #adb5bd;
        opacity: 1;
    }

    .course-search-help {
        color: #adb5bd;
    }

    .course-search-help kbd {
        background-color: #495057;
        border-color: #6c757d;
        color: #adb5bd;
    }
    
    .course-filter-wrapper {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .course-filter-card {
        background: #4a5568;
        border-color: #718096;
    }
    
    .course-filter-card .card-body {
        background: #4a5568;
        color: #e2e8f0;
    }
}

/* ============================================
   10. PRINT STYLES
   ============================================ */

@media print {
    .course-list-leftpanel,
    .course-list-pager,
    .btn,
    .course-filter-wrapper,
    .course-search-group,
    .course-pagination {
        display: none !important;
    }

    .course-list-content .card {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #000 !important;
    }
}

/* ============================================
   11. UTILITY CLASSES
   ============================================ */

/* Smooth Scrolling */
* {
    scroll-behavior: smooth;
}

/* Collapse-Animationen für Filter */
.collapse {
    transition: height 0.35s ease;
}

.card-header[data-bs-toggle="collapse"] {
    transition: background-color 0.2s ease;
}

.card-header[data-bs-toggle="collapse"]:hover {
    background-color: var(--course-base-color) !important;
    color: white !important;
}

.card-header[data-bs-toggle="collapse"] .card-title,
.card-header[data-bs-toggle="collapse"]:hover .card-title {
    color: white !important;
}

/* Chevron-Icons Animation */
.card-header .fa-chevron-down,
.card-header .fa-chevron-up {
    transition: transform 0.3s ease;
}

/* Custom Color Variables für DNN Integration */
.course-list-wrapper {
    --course-primary: var(--bs-primary, #0d6efd);
    --course-success: var(--bs-success, #198754);
    --course-info: var(--bs-info, #0dcaf0);
    --course-warning: var(--bs-warning, #ffc107);
    --course-danger: var(--bs-danger, #dc3545);
}

/* Filter-Überschriften mit besserer Typografie */
.card-header .card-title {
    font-size: 0.9rem;
    letter-spacing: 0.025em;
    text-transform: uppercase;
}

/* Main Title Icons */
.course-main-title i,
.course-count-title i {
    color: var(--course-base-color);
}

/* Verfügbarkeits-Badges */
.badge.bg-success {
    --bs-badge-color: #fff;
}

.badge.bg-warning {
    --bs-badge-color: #000;
}

.badge.bg-danger {
    --bs-badge-color: #fff;
}

/* Info-Badges in Kurskarten */
.course-list-content .badge.bg-light {
    border: 1px solid var(--bs-border-color);
    font-weight: 500;
}