.sidebar-desktop {
    top: 80px;
    left: 20px;
    width: 220px;
    max-height: calc(100vh - 120px);
    z-index: 1020;
    background: linear-gradient(to right, #158cba 4px, #fbfbfb 4px);
    border-radius: 0;
    padding: 20px;
    padding-left: 24px;
    box-shadow: none;
    border-bottom: 3px solid #ddd;
    overflow-y: auto;
}

.sidebar-desktop .btn-secondary {
    background-color: #f6f6f6;
    border-color: #e0e0e0;
    border-bottom-color: #c0c0c0;
    color: #555;
}

.sidebar-desktop .btn-secondary:hover {
    background-color: #158cba;
    border-color: #158cba;
    border-bottom-color: #0f6a8b;
    color: #ffffff;
}

.card {
    background-color: #fbfbfb;
    border-radius: 6px;
    border: none;
    border-bottom: 3px solid #ddd;
    box-shadow: none;
}

.main-content {
    margin-top: 80px;
    margin-left: 240px;
}

.main-content.main-content-centered {
    margin-left: auto;
    margin-right: auto;
    max-width: 800px;
}

.hidden-initially {
    display: none;
}

.markdown-preview {
    min-height: 150px;
    background-color: #f8f9fa;
}