.sidebar {
    min-height: calc(100vh - 56px);
    max-height: calc(100vh - 56px);
    overflow-y: auto;
    position: sticky;
    top: 56px;
}

.sidebar .list-group-item {
    border: none;
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    margin-bottom: 2px;
    font-size: 0.9rem;
}

.sidebar .list-group-item.active {
    background-color: #0d6efd;
    color: #fff;
}

.sidebar .list-group-item:hover:not(.active) {
    background-color: #f0f2f5;
}

.sidebar .list-group-item .btn-group {
    opacity: 0;
    transition: opacity 0.15s;
}

.sidebar .list-group-item:hover .btn-group {
    opacity: 1;
}

.sidebar .list-group-item.active .btn-group .bi {
    color: #fff !important;
}

.main-content {
    min-height: calc(100vh - 56px);
}

.search-group {
    max-width: 400px;
}

@media (min-width: 768px) {
    .category-header {
        cursor: default;
    }

    .category-toggle-icon {
        display: none;
    }

    .category-list-collapsed {
        display: flex !important;
    }
}

@media (max-width: 767.98px) {
    .search-group {
        max-width: none;
        flex: 1;
    }

    .sidebar {
        min-height: auto;
        max-height: none;
        position: relative;
        top: 0;
        border-bottom: 1px solid #dee2e6;
        border-right: none !important;
    }

    .sidebar .p-3 {
        padding: 0.5rem 0.75rem !important;
    }

    .sidebar .list-group {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 4px;
    }

    .sidebar .list-group-item {
        white-space: nowrap;
        flex-shrink: 0;
        padding: 0.25rem 0.5rem;
        font-size: 0.8rem;
        border-radius: 1rem !important;
    }

    .sidebar .list-group-item .btn-group {
        display: none;
    }

    .category-list-collapsed {
        display: none !important;
    }

    .category-header {
        cursor: pointer;
        user-select: none;
    }

    .category-toggle-icon {
        transition: transform 0.2s;
    }
}

.module-card {
    transition: box-shadow 0.15s, transform 0.15s;
    border: 1px solid #e9ecef;
}

.module-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.record-card {
    cursor: pointer;
    transition: box-shadow 0.15s, transform 0.15s;
    border: 1px solid #e9ecef;
}

.record-card:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transform: translateY(-1px);
}

.min-width-0 {
    min-width: 0;
}

.info-section {
    background-color: #f8f9fa;
    border-radius: 0.375rem;
    padding: 0.75rem;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.info-label {
    font-size: 0.75rem;
    color: #6c757d;
    white-space: nowrap;
}

.info-value {
    font-size: 0.82rem;
    color: #212529;
    font-family: 'SFMono-Regular', Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
    word-break: break-all;
}