:root {
    /* Logo 配色方案 */
    --primary-blue: #1E4D8B;
    --light-blue: #5DADE2;
    --bright-blue: #3498DB;
    --orange: #FB9B0B;
    --gold: #FFB84D;
    --deep-blue: #0F2C4F;

    /* Band 顏色 */
    --band-1-color: #28a745;
    --band-2-color: #ffc107;
    --band-3-color: #dc3545;

    /* 中性色 */
    --white: #FFFFFF;
    --light-gray: #F5F7FA;
    --gray: #E8EDF2;
    --dark-gray: #6C7A89;
}

body {
    font-family: 'Microsoft JhengHei', 'PingFang TC', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #E8F4F8 0%, #F5F7FA 100%);
    min-height: 100vh;
}

header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--bright-blue) 50%, var(--light-blue) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(30, 77, 139, 0.3);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 184, 77, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

header h1 {
    color: white;
    margin: 0;
    font-weight: 800;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    letter-spacing: 1px;
}

header h1 {
    font-size: 2rem;
}

header h1 i {
    color: var(--gold);
    filter: drop-shadow(2px 2px 3px rgba(251, 155, 11, 0.5));
}

.header-logo {
    width: 100px;
    height: 100px;
    object-fit: contain;
    filter: drop-shadow(4px 4px 8px rgba(0, 0, 0, 0.2));
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-8px);
    }
}

@media (max-width: 768px) {
    .header-logo {
        width: 60px;
        height: 60px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    header p {
        font-size: 0.85rem;
    }
}

.card {
    border: none;
    box-shadow: 0 4px 16px rgba(30, 77, 139, 0.1);
    border-radius: 16px;
    background: white;
    border: 2px solid rgba(93, 173, 226, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(30, 77, 139, 0.2);
    border-color: rgba(93, 173, 226, 0.3);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--light-blue) 50%, var(--orange) 100%);
}

.table {
    margin-bottom: 0;
}

.table thead th {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--bright-blue) 100%);
    color: white;
    font-weight: bold;
    vertical-align: middle;
    border: none;
    padding: 16px 12px;
}

.table thead th i {
    color: var(--gold);
}

.table tbody tr {
    transition: all 0.2s ease;
    border-bottom: 1px solid var(--gray);
}

.table tbody tr:hover {
    background-color: rgba(93, 173, 226, 0.05);
    transform: scale(1.01);
}

.school-name {
    font-weight: 600;
    color: #333;
}

.school-name-en {
    font-size: 0.85em;
    color: #666;
    display: block;
    margin-top: 2px;
}

.badge {
    font-size: 0.85em;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
}

.badge-type {
    margin-right: 4px;
}

.badge-govt {
    background: linear-gradient(135deg, #6c757d 0%, #545b62 100%);
    color: white;
}

.badge-aided {
    background: linear-gradient(135deg, #28a745 0%, #20873a 100%);
    color: white;
}

.badge-dss {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--primary-blue) 100%);
    color: white;
}

.badge-caput {
    background: linear-gradient(135deg, var(--gold) 0%, var(--orange) 100%);
    color: white;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.badge-band-1 {
    background: linear-gradient(135deg, #28a745 0%, #20873a 100%);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 3px 8px rgba(40, 167, 69, 0.3);
}

.badge-band-2 {
    background: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 3px 8px rgba(255, 193, 7, 0.3);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.badge-band-3 {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 3px 8px rgba(220, 53, 69, 0.3);
}

.gender-icon {
    margin-right: 4px;
}

.sai-bar {
    width: 100%;
    height: 20px;
    background: linear-gradient(90deg, #dc3545 0%, #ffc107 50%, #28a745 100%);
    border-radius: 10px;
    position: relative;
    margin-bottom: 4px;
}

.sai-indicator {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 3px;
    height: 24px;
    background-color: #000;
    border: 2px solid white;
}

.sai-label {
    font-size: 0.85em;
    color: #666;
    display: flex;
    justify-content: space-between;
}

.rank-badge {
    font-size: 1.1em;
    font-weight: bold;
}

.pagination {
    margin-top: 20px;
}

.btn {
    border-radius: 8px;
    font-weight: 600;
    padding: 10px 20px;
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--primary-blue) 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--deep-blue) 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 77, 139, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #545b62 100%);
    color: white;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #545b62 0%, #3d4349 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.3);
}

.btn-group-sm .btn {
    padding: 4px 10px;
    font-size: 0.8rem;
    border-radius: 6px;
}

.btn-outline-primary {
    border: 2px solid var(--bright-blue);
    color: var(--bright-blue);
    background: white;
}

.btn-outline-primary:hover {
    background: var(--bright-blue);
    color: white;
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #20873a 100%);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #20873a 0%, #1e7e34 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

#shareBtn {
    margin-left: 8px;
}

#shareBtn i {
    transition: transform 0.3s ease;
}

#shareBtn:hover i {
    transform: scale(1.2);
}

footer {
    border-top: 3px solid var(--light-blue);
    background: linear-gradient(135deg, rgba(30, 77, 139, 0.05) 0%, rgba(93, 173, 226, 0.05) 100%);
    margin-top: 60px;
}

/* Alert 樣式 */
.alert-info {
    background: linear-gradient(135deg, rgba(93, 173, 226, 0.1) 0%, rgba(30, 77, 139, 0.1) 100%);
    border-left: 4px solid var(--bright-blue);
    color: var(--primary-blue);
    border-radius: 12px;
    font-weight: 600;
}

.alert-info i {
    color: var(--bright-blue);
}

/* Form 控件樣式 */
.form-control, .form-select {
    border-radius: 10px;
    border: 2px solid var(--gray);
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--bright-blue);
    box-shadow: 0 0 0 0.2rem rgba(93, 173, 226, 0.25);
}

/* Pagination 樣式 */
.pagination .page-link {
    color: var(--primary-blue);
    border-radius: 8px;
    margin: 0 4px;
    border: 2px solid var(--gray);
    font-weight: 600;
    transition: all 0.3s ease;
}

.pagination .page-link:hover {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--primary-blue) 100%);
    color: white;
    border-color: var(--bright-blue);
    transform: translateY(-2px);
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--primary-blue) 100%);
    border-color: var(--primary-blue);
    box-shadow: 0 4px 12px rgba(30, 77, 139, 0.3);
}

.pagination .page-item.disabled .page-link {
    background-color: var(--gray);
    border-color: var(--gray);
}

/* Spinner 動畫 */
.spinner-border {
    border-color: var(--light-blue);
    border-right-color: transparent;
}

/* Card Title 樣式 */
.card-title {
    color: var(--primary-blue);
    font-weight: 700;
    position: relative;
    padding-left: 16px;
}

.card-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: linear-gradient(135deg, var(--orange) 0%, var(--gold) 100%);
    border-radius: 2px;
}

@media (max-width: 768px) {
    .table {
        font-size: 0.9em;
    }

    .school-name-en {
        font-size: 0.75em;
    }
}

/* ==================== 論壇相關樣式 ==================== */

/* 下載 App 橫幅 */
.download-app-banner {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--bright-blue) 50%, var(--light-blue) 100%);
    color: white;
    border: none;
    border-radius: 16px;
    box-shadow: 0 6px 20px rgba(30, 77, 139, 0.3);
    position: relative;
    overflow: hidden;
}

.download-app-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 184, 77, 0.25) 0%, transparent 70%);
    border-radius: 50%;
}

.download-app-banner strong {
    font-size: 1.2em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.download-app-banner i {
    color: var(--gold);
    filter: drop-shadow(2px 2px 3px rgba(251, 155, 11, 0.5));
    font-size: 1.3em;
}

.download-app-banner .btn-primary {
    background: white;
    color: var(--primary-blue);
    border: none;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.download-app-banner .btn-primary:hover {
    background: var(--gold);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(251, 155, 11, 0.4);
}

/* 論壇帖子卡片 */
.forum-post-card {
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 16px;
    border: 2px solid rgba(93, 173, 226, 0.1);
    position: relative;
    overflow: hidden;
}

.forum-post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--bright-blue) 50%, var(--orange) 100%);
}

.forum-post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(30, 77, 139, 0.2);
    border-color: rgba(93, 173, 226, 0.3);
}

.forum-post-card .card-title {
    color: var(--primary-blue);
    font-size: 1.15em;
    font-weight: 700;
}

.forum-post-card .badge {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--primary-blue) 100%);
    color: white;
}

.forum-post-card .avatar-emoji {
    font-size: 1.3em;
    margin-right: 6px;
    display: inline-block;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, rgba(93, 173, 226, 0.2) 0%, rgba(30, 77, 139, 0.2) 100%);
    border-radius: 50%;
    text-align: center;
    line-height: 32px;
}

/* 學校詳情中的論壇帖子卡片（更小尺寸） */
.forum-post-card-small {
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 12px;
    border: 1px solid rgba(93, 173, 226, 0.15);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(93, 173, 226, 0.05) 100%);
}

.forum-post-card-small:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 77, 139, 0.15);
    border-color: var(--bright-blue);
}

.forum-post-card-small .card-title {
    color: var(--primary-blue);
    font-size: 0.95em;
    font-weight: 600;
}

.forum-post-card-small .avatar-emoji {
    font-size: 1em;
    display: inline-block;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, rgba(93, 173, 226, 0.2) 0%, rgba(30, 77, 139, 0.2) 100%);
    border-radius: 50%;
    text-align: center;
    line-height: 20px;
}

/* 下載 App 彈窗樣式 */
#downloadAppModal .modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: 0 10px 40px rgba(30, 77, 139, 0.3);
}

#downloadAppModal .download-icon {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--bright-blue) 50%, var(--light-blue) 100%);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 6px 20px rgba(30, 77, 139, 0.3);
    position: relative;
}

#downloadAppModal .download-icon::after {
    content: '';
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 3px solid var(--light-blue);
    opacity: 0.3;
}

#downloadAppModal .download-icon i {
    color: white;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.2));
}

#downloadAppModal h4 {
    color: var(--primary-blue);
    font-weight: 800;
}

#downloadAppModal .features-box {
    background: linear-gradient(135deg, rgba(93, 173, 226, 0.05) 0%, rgba(30, 77, 139, 0.05) 100%);
    border-radius: 12px;
    text-align: left;
    border: 2px solid rgba(93, 173, 226, 0.1);
}

#downloadAppModal .features-box h6 {
    color: var(--primary-blue);
}

#downloadAppModal .features-box ul {
    margin-bottom: 0;
}

#downloadAppModal .features-box li {
    padding-left: 8px;
}

#downloadAppModal .features-box li i {
    color: #28a745;
}

#downloadAppModal .btn-success {
    background: linear-gradient(135deg, #01875F 0%, #00C851 100%);
    border: none;
    border-radius: 12px;
    padding: 12px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(1, 135, 95, 0.3);
}

#downloadAppModal .btn-primary {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--primary-blue) 100%);
    border: none;
    border-radius: 12px;
    padding: 12px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(30, 77, 139, 0.3);
}

#downloadAppModal .btn-success:hover,
#downloadAppModal .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(30, 77, 139, 0.4);
}

#downloadAppModal .btn-link {
    color: var(--dark-gray);
    font-weight: 500;
}

/* 導航欄樣式 */
.navbar {
    box-shadow: 0 4px 12px rgba(30, 77, 139, 0.15);
    border-radius: 12px;
    background: white;
    padding: 12px 20px;
    border: 2px solid rgba(93, 173, 226, 0.1);
}

.navbar-nav .nav-link {
    margin: 0 8px;
    border-radius: 10px;
    transition: all 0.3s ease;
    padding: 10px 20px;
    font-weight: 600;
    position: relative;
}

.navbar-nav .nav-link i {
    margin-right: 6px;
    transition: transform 0.3s ease;
}

.navbar-nav .nav-link:hover {
    background: linear-gradient(135deg, rgba(93, 173, 226, 0.1) 0%, rgba(30, 77, 139, 0.1) 100%);
    transform: translateY(-2px);
}

.navbar-nav .nav-link:hover i {
    transform: scale(1.2);
}

.navbar-nav .nav-link.active {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--primary-blue) 100%);
    color: white !important;
    box-shadow: 0 4px 12px rgba(30, 77, 139, 0.3);
}

.navbar-nav .nav-link.active i {
    color: var(--gold);
}

.navbar-nav .nav-link.active:hover {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--deep-blue) 100%);
}

/* ==================== Mobile Responsive Styles ==================== */

/* Mobile filter collapse */
.mobile-filter-header {
    cursor: pointer;
    user-select: none;
}

.mobile-filter-icon {
    transition: transform 0.3s ease;
}

.mobile-filter-icon.rotate {
    transform: rotate(180deg);
}

.filter-content {
    transition: max-height 0.3s ease, opacity 0.3s ease;
    overflow: hidden;
}

@media (min-width: 769px) {
    /* Desktop: always show filters, hide mobile header */
    .mobile-filter-header {
        display: none;
    }

    .filter-content {
        max-height: none !important;
        opacity: 1 !important;
    }

    .mobile-filter-icon {
        display: none;
    }
}

@media (max-width: 768px) {
    /* Mobile: collapsible filters */
    .mobile-filter-header {
        display: block;
        padding: 8px 0;
        border-bottom: 2px solid rgba(93, 173, 226, 0.1);
        margin-bottom: 0;
    }

    .mobile-filter-header h5 {
        margin: 0;
        color: var(--primary-blue);
    }

    .filter-content {
        max-height: 0;
        opacity: 0;
    }

    .filter-content.show {
        max-height: 2000px;
        opacity: 1;
        margin-top: 16px;
    }
}

/* Hide desktop table on mobile */
@media (max-width: 768px) {
    /* Hide the desktop table */
    .table-responsive > table {
        display: none;
    }

    /* Show mobile card layout */
    .mobile-school-list {
        display: block !important;
    }

    /* Hide sort buttons in table header on mobile */
    .table thead .btn-group {
        display: none;
    }

    /* Mobile filter controls */
    .card-body .row {
        margin-bottom: 10px;
    }

    .card-body .row > div {
        margin-bottom: 10px;
    }

    /* Adjust search buttons for mobile */
    .card-body .row .btn {
        width: 100%;
        margin-bottom: 8px;
    }

    /* Make stats info smaller on mobile */
    #statsInfo {
        font-size: 0.85rem;
        padding: 8px 12px;
    }

    /* Adjust pagination for mobile */
    .pagination {
        flex-wrap: wrap;
        justify-content: center;
    }

    .pagination .page-item {
        margin: 2px;
    }

    .pagination .page-link {
        padding: 6px 10px;
        font-size: 0.85rem;
    }

    /* Header adjustments */
    header h1 {
        font-size: 1.5rem;
    }

    header p {
        font-size: 0.85rem;
    }

    .header-logo {
        width: 60px;
        height: 60px;
    }

    /* Navigation bar for mobile */
    .navbar {
        padding: 8px;
    }

    .navbar-nav {
        flex-direction: row;
        width: 100%;
        justify-content: space-around;
    }

    .navbar-nav .nav-link {
        margin: 0 4px;
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    .navbar-nav .nav-link i {
        display: block;
        margin: 0 auto 4px;
        font-size: 1.2rem;
    }
}

/* Mobile school card styles */
.mobile-school-list {
    display: none; /* Hidden by default, shown on mobile */
}

.mobile-school-card {
    background: white;
    border-radius: 10px;
    margin-bottom: 8px;
    padding: 10px;
    box-shadow: 0 2px 6px rgba(30, 77, 139, 0.08);
    border: 1px solid rgba(93, 173, 226, 0.15);
    transition: all 0.2s ease;
    cursor: pointer;
}

.mobile-school-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 77, 139, 0.15);
    border-color: var(--bright-blue);
}

.mobile-school-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 6px;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(93, 173, 226, 0.1);
}

.mobile-school-name {
    flex: 1;
}

.mobile-school-name h5 {
    color: var(--primary-blue);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 2px;
    line-height: 1.2;
}

.mobile-school-name-en {
    color: #666;
    font-size: 0.75rem;
    margin-bottom: 0;
    line-height: 1.2;
}

.mobile-school-rank {
    text-align: right;
    margin-left: 8px;
}

.mobile-rank-badge {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--primary-blue) 100%);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 1px 4px rgba(30, 77, 139, 0.2);
}

.mobile-school-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 6px;
}

.mobile-school-badges .badge {
    font-size: 0.7rem;
    padding: 2px 6px;
}

.mobile-school-info-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 6px;
    font-size: 0.8rem;
}

.mobile-info-inline {
    display: flex;
    align-items: center;
    gap: 4px;
}

.mobile-info-inline .info-label {
    color: #666;
    font-size: 0.7rem;
}

.mobile-info-inline .info-value {
    color: var(--primary-blue);
    font-weight: 700;
    font-size: 0.8rem;
}

.mobile-info-inline i {
    color: #999;
    font-size: 0.7rem;
}

.mobile-band-badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.75rem;
    line-height: 1;
}

.mobile-sai-container {
    /* No longer full width, just regular grid item */
}

/* Mobile sort controls */
.mobile-sort-controls {
    display: none;
    background: white;
    padding: 12px;
    border-radius: 12px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(30, 77, 139, 0.1);
}

@media (max-width: 768px) {
    .mobile-sort-controls {
        display: block;
    }
}

.mobile-sort-label {
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.mobile-sort-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.mobile-sort-btn {
    padding: 10px;
    border: 2px solid var(--bright-blue);
    background: white;
    color: var(--primary-blue);
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    position: relative;
}

.mobile-sort-btn:hover,
.mobile-sort-btn.active {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--primary-blue) 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 77, 139, 0.3);
}

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

.mobile-sort-btn .sort-direction {
    display: none;
    font-size: 0.7rem;
    margin-left: 2px;
    transition: transform 0.3s ease;
}

.mobile-sort-btn.active .sort-direction {
    display: inline-block;
}

.mobile-sort-btn.active.desc .sort-direction {
    transform: rotate(180deg);
}