/* ========================================
   RESOURCES PAGE - COMPLETE CSS STYLES
   ======================================== */

/* ========================================
   1. BASE STYLES & RESET
   ======================================== */
* {
    box-sizing: border-box;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

body {
    background-color: #f5f5f5;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #06234b;
}

/* ========================================
   2. SEARCH SECTION
   ======================================== */
.search-section {
    background-color: #f0f5ff;
    padding: 20px 0;
    border-bottom: 1px solid #ddd;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 20px;
}



.search-header {
    text-align: center;
    margin-bottom: 15px;
}

.search-header h2 {
    color: #06234b;
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.search-header p {
    color: #666;
    font-size: 0.9rem;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 15px;
}

.search-input {
    width: 100%;
    padding: 12px 20px;
    padding-left: 45px;
    border: 2px solid #06234b;
    border-radius: 50px;
    font-size: 16px;
    outline: none;
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: #3564a9;
    box-shadow: 0 0 8px rgba(53, 100, 169, 0.3);
}

.search-icon {
    position: absolute;
    left: 15px;
    color: #06234b;
    font-size: 18px;
    pointer-events: none;
    z-index: 10;
}

.results-count {
    margin-top: 10px;
    text-align: center;
    font-size: 0.9rem;
    color: white;
    font-weight: 600;
}

/* Search Buttons */
.search-buttons-wrapper {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    margin-bottom: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.search-form .search-buttons-wrapper {
    display: flex !important;
    flex-direction: row !important;
    gap: 15px !important;
    margin-top: 15px !important;
    align-items: center !important;
    justify-content: flex-start !important;
    flex-wrap: wrap !important;
}

/* ========================================
   3. LAYOUT STRUCTURE
   ======================================== */
.main-layout {
    display: grid;
    grid-template-columns: 300px 1fr 300px;
    gap: 30px;
    margin-top: 20px;
    min-height: 600px;
}

/* Main Content Area */
.main-content {
    min-height: 500px;
}

.main-content .resources-header {
    margin-bottom: 30px;
    text-align: center;
}

.main-content .resources-section {
    padding: 0;
}

/* ========================================
   4. LEFT SIDEBAR - FILTERS
   ======================================== */
.sidebar-left {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    height: fit-content;
    position: sticky;
    top: 20px;
}

.filter-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #06234b;
    margin-bottom: 20px;
    padding: 20px 20px 0;
    border-bottom: 2px solid #f0f5ff;
    padding-bottom: 15px;
}

.filter-section {
    background-color: #fff;
    padding: 20px 0;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
}

.filter-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    background-color: #f0f8ff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-left: 5px solid #06234b;
    transition: all 0.3s ease;
}

.filter-container:hover {
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

.sidebar-left .filter-container {
    padding: 0 20px 20px;
    background: none;
    box-shadow: none;
    border: none;
    margin: 0;
}

.filter-form {
    display: flex;
    justify-content: center;
    align-items: center;
}

.sidebar-left .filter-form {
    display: block;
}

.filter-row {
    display: flex;
    align-items: end;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.filters-row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
    flex: 1;
    min-width: 220px;
}

.sidebar-left .filter-group {
    margin-bottom: 20px;
}

.filter-group label {
    font-weight: 600;
    color: #06234b;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 8px;
}

.sidebar-left .filter-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #06234b;
    font-size: 0.9rem;
}

.filter-group select {
    padding: 10px 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    min-width: 180px;
    background-color: white;
    transition: all 0.3s ease;
}

.sidebar-left .filter-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    background-color: white;
    transition: all 0.3s ease;
}

.filter-group select.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    background-color: white;
    transition: all 0.3s ease;
}

.filter-group select:focus,
.sidebar-left .filter-group select:focus,
.filter-group select.form-control:focus {
    border-color: #06234b;
    outline: none;
    box-shadow: 0 0 0 3px rgba(6, 35, 75, 0.1);
}

.filter-buttons {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    flex-direction: column;
}

.sidebar-left .filter-buttons .btn {
    width: 100%;
    text-align: center;
}

/* ========================================
   5. RIGHT SIDEBAR - QUICK BROWSE
   ======================================== */
.sidebar-right {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    height: fit-content;
    position: sticky;
    top: 20px;
}

.sidebar-right .category-section {
    padding: 20px;
    margin: 0;
    background: none;
    box-shadow: none;
}

.sidebar-right .category-section-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
    text-align: left;
    border-bottom: 2px solid #f0f5ff;
    padding-bottom: 15px;
}

.category-cards-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-right .category-card {
    padding: 15px;
    margin: 0;
}

.sidebar-right .category-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
}

.sidebar-right .category-name {
    font-size: 1rem;
}

.sidebar-right .category-count {
    font-size: 0.8rem;
}

/* ========================================
   6. CATEGORY CARDS
   ======================================== */
.category-section {
    padding: 40px 0;
    background-color: #fff;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
}

.category-section-title {
    text-align: center;
    font-size: 2rem;
    color: #06234b;
    margin-bottom: 30px;
    font-weight: 600;
}

.category-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    padding: 0 20px;
}

.category-card {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(248,249,250,0.9) 100%);
    transition: opacity 0.3s ease;
    opacity: 0;
    pointer-events: none;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #06234b;
    /* border-color: red; */
}

.category-card:hover::before {
    opacity: 1;
}

.category-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    margin-right: 5px;
}

.category-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.category-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: #06234b;
    margin-bottom: 5px;
}

.category-count {
    font-size: 0.9rem;
    color: black;
    margin: 0;
    background-color: #f0f5ff;
    font-weight: 500;
    border-radius: 20px;
    padding: 2px 8px;
    
    margin-left: 8px;
    display: inline-block;
}

.category-arrow {
    font-size: 18px;
    color: #06234b;
    position: relative;
    z-index: 1;
    transition: transform 0.3s ease;
}

.category-card:hover .category-arrow {
    transform: translateX(5px);
}

/* Active Category Styling */
.category-card.active-category {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3) !important;
    border-color: #06234b;
}

.category-card.active-category .category-name,
.category-card.active-category .category-count {
    color: black !important;
    font-weight: 500;
}

.category-card.active-category .category-arrow,
.category-card.active-category .category-arrow i {
    color: white !important;
    transform: translateX(5px);
}

.view-all-card {
    border: 2px solid #06234b;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.view-all-card:hover {
    background: linear-gradient(135deg, #06234b 0%, #1e3a8a 100%);
}

.view-all-card:hover .category-name,
.view-all-card:hover .category-count,
.view-all-card:hover .category-arrow {
    color: white;
}

.no-categories {
    text-align: center;
    padding: 40px 20px;
    color: #666;
    grid-column: 1 / -1;
}

.no-categories i {
    font-size: 2rem;
    margin-bottom: 10px;
    color: #06234b;
}

.no-categories p {
    font-size: 1.1rem;
    margin: 0;
}
        




/* ========================================
   7. BUTTONS & FORMS
   ======================================== */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #06234b, #3564a9);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #3564a9, #06234b);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(6, 35, 75, 0.3);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
}

.filter-btn,
.clear-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: all 0.2s ease;
}

.filter-btn {
    background-color: #06234b;
    color: white;
}

.filter-btn:hover {
    background-color: #0c3d7a;
}

.clear-btn {
    background-color: #6c757d;
    color: white;
}

.clear-btn:hover {
    background-color: #5a6268;
}

/* ========================================
   8. ENHANCED SEARCH BUTTONS -
   ======================================== */

.search-form .search-buttons-wrapper {
    display: flex !important;
    flex-direction: row !important;
    gap: 15px !important;
    margin-top: 15px !important;
    margin-bottom: 15px !important;
    align-items: center !important;
    justify-content: flex-start !important;
    flex-wrap: wrap !important;
}

.search-form .search-submit-btn,
form .search-submit-btn,
button.search-submit-btn {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 12px 24px !important;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%) !important;
    color: white !important;
    border: none !important;
    border-radius: 25px !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    position: relative !important;
    overflow: hidden !important;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4) !important;
    text-decoration: none !important;
    min-width: 120px !important;
    justify-content: center !important;
    outline: none !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.search-form .search-submit-btn:hover,
form .search-submit-btn:hover,
button.search-submit-btn:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6) !important;
    background: linear-gradient(135deg, #764ba2 0%, #667eea 50%, #f093fb 100%) !important;
    color: white !important;
}

.search-form .search-submit-btn i,
form .search-submit-btn i,
button.search-submit-btn i {
    font-size: 16px !important;
    color: white !important;
}

.search-form .search-submit-btn span,
form .search-submit-btn span,
button.search-submit-btn span {
    color: white !important;
    display: inline-block !important;
}

.search-form .view-all-btn,
form .view-all-btn,
a.view-all-btn {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 12px 24px !important;
    background: linear-gradient(135deg, #ff9a56 0%, #ff6b95 50%, #c44569 100%) !important;
    color: white !important;
    border: none !important;
    border-radius: 25px !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    position: relative !important;
    overflow: hidden !important;
    box-shadow: 0 4px 15px rgba(255, 154, 86, 0.4) !important;
    text-decoration: none !important;
    min-width: 120px !important;
    justify-content: center !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.search-form .view-all-btn:hover,
form .view-all-btn:hover,
a.view-all-btn:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 25px rgba(255, 154, 86, 0.6) !important;
    background: linear-gradient(135deg, #c44569 0%, #ff6b95 50%, #ff9a56 100%) !important;
    text-decoration: none !important;
    color: white !important;
}

.search-form .view-all-btn i,
form .view-all-btn i,
a.view-all-btn i {
    font-size: 16px !important;
    color: white !important;
}

.search-form .view-all-btn span,
form .view-all-btn span,
a.view-all-btn span {
    color: white !important;
    display: inline-block !important;
}

/* Force search section styling */
.search-section {
    background: linear-gradient(115deg, #5c71d3 0%, #18052a 100%) !important;
    padding: 40px 0 !important;
    border-bottom: none !important;
    color: white !important;
}

.search-header h2 {
    color: white !important;
    font-size: 2.5rem !important;
    margin-bottom: 15px !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3) !important;
}

.search-header p {
    color: rgba(255, 255, 255, 0.9) !important;
    font-size: 1.1rem !important;
    margin-bottom: 30px !important;
}

/* Enhanced search input */
.search-input-wrapper {
    position: relative !important;
    margin-bottom: 20px !important;
}

.search-input {
    width: 100% !important;
    padding: 15px 20px 15px 50px !important;
    border: none !important;
    border-radius: 50px !important;
    font-size: 16px !important;
    background: rgba(255, 255, 255, 0.95) !important;
    color: #333 !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1) !important;
    transition: all 0.3s ease !important;
}

.search-input:focus {
    outline: none !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15) !important;
    background: white !important;
}

.search-icon {
    position: absolute !important;
    left: 18px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    color: #667eea !important;
    font-size: 18px !important;
    z-index: 2 !important;
}

/* Force resource cards styling */
.resource-card {
    background: white !important;
    border-radius: 16px !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08) !important;
    overflow: hidden !important;
    transition: all 0.3s ease !important;
    margin-bottom: 20px !important;
}

.resource-card:hover {
    transform: translateY(-8px) scale(1.02) !important;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15) !important;
}

.resources-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)) !important;
    gap: 20px !important;
    margin-top: 20px !important;
}

/* Force category cards styling */
.category-card {
    background: white !important;
    border-radius: 12px !important;
    padding: 20px !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08) !important;
    transition: all 0.3s ease !important;
    cursor: pointer !important;
    border: 2px solid transparent !important;
}

.category-card:hover {
    transform: translateY(-5px) !important;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15) !important;
    border-color: #667eea !important;
}

.category-icon {
    width: 60px !important;
    height: 60px !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    margin-bottom: 15px !important;
    color: white !important;
    font-size: 24px !important;
}

.category-name {
    font-size: 1.2rem !important;
    font-weight: 600 !important;
    color: #333 !important;
    margin-bottom: 5px !important;
}

.category-count {
    color: #666 !important;
    font-size: 0.9rem !important;
}

/* Alternative bright button styles as backup */
.search-submit-btn.alt-style {
    background: #ff6b6b !important;
    color: white !important;
    padding: 12px 24px !important;
    border-radius: 25px !important;
    border: none !important;
    font-weight: bold !important;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4) !important;
}

.view-all-btn.alt-style {
    background: #4ecdc4 !important;
    color: white !important;
    padding: 12px 24px !important;
    border-radius: 25px !important;
    border: none !important;
    font-weight: bold !important;
    box-shadow: 0 4px 15px rgba(78, 205, 196, 0.4) !important;
}

/* ========================================
   9. RESOURCE CARDS & GRID
   ======================================== */
.resources-section {
    padding: 20px 0;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.resource-card {
    background-color: white;
    border: 1px solid #e0e0e0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    transform-origin: center;
}

.resource-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
    border-color: #06234b;
}

.resource-category-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: linear-gradient(135deg, #06234b, #3564a9);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 3;
    box-shadow: 0 2px 8px rgba(6, 35, 75, 0.3);
}

/* Enhanced Resource Category Badge */
.resource-category-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 5px 10px;
    border-radius: 15px;
    background-color: #f8f9fa;
    color: #333;
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 2;
    border: 1px solid rgba(0,0,0,0.1);
}

/* Category-specific colors for resource badges */
.resource-category-badge.lecture {
    background-color: #007bff;
    color: white;
}

.resource-category-badge.hand_notes {
    background-color: #28a745;
    color: white;
}

.resource-category-badge.sample_question {
    background-color: #dc3545;
    color: white;
}

.resource-category-badge.assignment {
    background-color: #ffc107;
    color: #212529;
}

.resource-category-badge.lab_report {
    background-color: #17a2b8;
    color: white;
}

.resource-category-badge.book {
    background-color: #6610f2;
    color: white;
}

.resource-category-badge.project {
    background-color: #fd7e14;
    color: white;
}

.resource-category-badge.download_link {
    background-color: #20c997;
    color: white;
}

.resource-category-badge.other {
    background-color: #6c757d;
    color: white;
}

.resource-card:hover .resource-category-badge {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
}

.resource-icon {
    background: linear-gradient(135deg, var(--icon-bg-color, #06234b), var(--icon-bg-color-light, #3564a9));
    color: white;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.resource-icon::before {
    content: attr(data-ext);
    position: absolute;
    bottom: 12px;
    right: 12px;
    font-size: 0.85rem;
    padding: 4px 8px;
    background-color: rgba(255, 255, 255, 0.9);
    color: #333;
    border-radius: 6px;
    text-transform: uppercase;
    font-weight: bold;
    z-index: 2;
}

.resource-icon::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    z-index: 1;
}

.resource-icon img.thumbnail {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.resource-icon i {
    font-size: 3.5rem;
    z-index: 2;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    opacity: 0.9;
}

.resource-content {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.resource-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #06234b;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.resource-description {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
    font-size: 0.95rem;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.resource-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.resource-meta {
    display: flex;
    align-items: center;
    color: #888;
    font-size: 0.9rem;
    font-weight: 500;
}

.resource-meta i {
    margin-right: 6px;
    color: #06234b;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #06234b, #3564a9);
    color: white;
    padding: 12px 20px;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(6, 35, 75, 0.3);
}

.download-btn:hover {
    background: linear-gradient(135deg, #3564a9, #06234b);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 35, 75, 0.4);
    color: white;
    text-decoration: none;
}

.download-btn i {
    font-size: 1rem;
}

.no-resources {
    text-align: center;
    padding: 40px 0;
    color: #777;
    font-size: 1.2rem;
}

/* ========================================
   10. CATEGORY-SPECIFIC STYLING
   ======================================== */
/* Category tag styles */
.category-tag.active {
    background-color: #3564a9;
    color: white;
}

.category-badge {
    display: inline-block;
    background-color: #06234b;
    color: white;
    padding: 3px 8px;
    border-radius: 20px;
    font-size: 0.75rem;
    margin-right: 5px;
    margin-bottom: 5px;
}

.selected-category {
    font-weight: bold;
    color: #06234b;
    margin-top: 10px;
    padding: 5px 10px;
    background-color: #e6f0ff;
    border-radius: 4px;
    display: inline-block;
}

/* Category color indicators */
.category-lecture {
    border-left: 4px solid #e74c3c;
}

.category-hand_notes {
    border-left: 4px solid #3498db;
}

.category-sample_question {
    border-left: 4px solid #2ecc71;
}

.category-assignment {
    border-left: 4px solid #f39c12;
}

.category-lab_report {
    border-left: 4px solid #9b59b6;
}

.category-book {
    border-left: 4px solid #1abc9c;
}

.category-project {
    border-left: 4px solid #34495e;
}

.category-download_link {
    border-left: 4px solid #e67e22;
}

.category-other {
    border-left: 4px solid #95a5a6;
}

/* Resource card category styling */
.resource-card.category-book .resource-icon {
    background-color: #8e44ad !important;
}

.resource-card.category-lab .resource-icon {
    background-color: #27ae60 !important;
}

.resource-card.category-lecture .resource-icon {
    background-color: #e67e22 !important;
}

.resource-card.category-assignment .resource-icon {
    background-color: #3498db !important;
}

.resource-card.category-project .resource-icon {
    background-color: #c0392b !important;
}

.resource-card.category-code .resource-icon {
    background-color: #2c3e50 !important;
}

.resource-card.category-data .resource-icon {
    background-color: #16a085 !important;
}

.resource-card.category-document .resource-icon {
    background-color: #e74c3c !important;
}

.resource-card.category-archive .resource-icon {
    background-color: #f1c40f !important;
}

/* ========================================
   11. THUMBNAILS & PLACEHOLDERS
   ======================================== */

/* Content type badge */
.content-type-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    z-index: 2;
    font-weight: bold;
    text-transform: uppercase;
}

/* Category label for resource cards */
.resource-category-label {
    position: absolute;
    top: 130px;
    right: 10px;
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    z-index: 3;
    text-transform: uppercase;
    font-weight: bold;
}

/* ========================================
   12. FILTER BADGES & ACTIVE FILTERS
   ======================================== */
.active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
    align-items: center;
}

.active-filters-label {
    font-weight: 600;
    color: #555;
    margin-right: 5px;
    font-size: 14px;
}

.filter-badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 13px;
    color: white;
    gap: 5px;
}

.type-badge {
    background-color: #e74c3c;
}

.remove-filter {
    margin-left: 5px;
    color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
}

.remove-filter:hover {
    color: rgba(255, 255, 255, 0.8);
}

.clear-all-filters {
    margin-left: 10px;
    color: #06234b;
    text-decoration: underline;
    font-size: 13px;
}

.clear-all-filters:hover {
    color: #0c3d7a;
}

/* Current category highlight */
.current-category {
    background-color: #e9f7fe;
    border-left: 5px solid #06234b;
    font-weight: bold;
}

/* ========================================
   13. PAGINATION
   ======================================== */
.pagination-container {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.pagination {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

.pagination .page-item {
    margin: 0 3px;
}

.pagination .page-link {
    padding: 8px 12px;
    background: #fff;
    border: 1px solid #ddd;
    color: #06234b;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.2s;
}

.pagination .page-item.active .page-link {
    background: #06234b;
    color: #fff;
    border-color: #06234b;
}

.pagination .page-link:hover {
    background: #eee;
}

/* ========================================
   14. FOOTER
   ======================================== */
footer {
    background-color: #06234b;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: auto;
    font-size: 16px;
}

/* ========================================
   15. RESPONSIVE DESIGN
   ======================================== */
/* Tablet Layout */
@media (max-width: 1200px) {
    .main-layout {
        grid-template-columns: 250px 1fr 250px;
        gap: 20px;
    }
}

/* Mobile Layout */
@media (max-width: 992px) {
    .main-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .sidebar-left {
        position: static;
        order: 1;
    }

    .sidebar-right {
        position: static;
        order: 2;
    }

    .main-content {
        order: 3;
    }

    .category-cards-list {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .main-layout {
        gap: 15px;
    }

    .sidebar-left .filter-buttons {
        flex-direction: column;
    }

    .category-cards-list {
        grid-template-columns: 1fr;
    }

    .filter-row {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-group select {
        min-width: 250px;
    }

    .resources-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .search-input {
        font-size: 14px;
        padding: 10px 15px 10px 40px;
    }
    
    .search-icon {
        font-size: 16px;
        left: 12px;
    }

    .category-cards-grid {
        grid-template-columns: 1fr;
        padding: 0 10px;
    }
    
    .category-card {
        padding: 15px;
    }
    
    .category-icon {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .category-name {
        font-size: 1.1rem;
    }
    
    .category-section-title {
        font-size: 1.5rem;
        margin-bottom: 20px;
    }

    .search-buttons-wrapper {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .search-submit-btn,
    .view-all-btn {
        width: 100%;
        justify-content: center;
        padding: 14px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    .search-container {
        padding: 0 10px;
    }
    
    .search-header h2 {
        font-size: 1.3rem;
    }

    .search-form .search-buttons-wrapper {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 10px !important;
    }
    
    .search-form .search-submit-btn,
    .search-form .view-all-btn {
        width: 100% !important;
    }
}

/* Ensure buttons stay side by side on larger screens */
@media (min-width: 769px) {
    .search-form .search-buttons-wrapper {
        flex-wrap: nowrap !important;
    }
    
    .search-form .search-submit-btn,
    .search-form .view-all-btn {
        flex-shrink: 0 !important;
    }
}

/* ========================================
   16. UTILITY CLASSES
   ======================================== */
.search-form button, .search-form a {
    visibility: visible !important;
    opacity: 1 !important;
}

/* Alternative button styles */
.search-submit-btn.alt-style {
    background: #ff6b6b !important;
    color: white !important;
    padding: 12px 24px !important;
    border-radius: 25px !important;
    border: none !important;
    font-weight: bold !important;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4) !important;
}

.view-all-btn.alt-style {
    background: #4ecdc4 !important;
    color: white !important;
    padding: 12px 24px !important;
    border-radius: 25px !important;
    border: none !important;
    font-weight: bold !important;
    box-shadow: 0 4px 15px rgba(78, 205, 196, 0.4) !important;
}