html, body {
        height: 100%;
        overflow: hidden !important;
    }
    body {
        margin: 0 !important;
        padding: 0 !important;
        height: 100%;
    }
    .sidebar {
        border-right: 1px solid #ececec;
        position: relative;
    }

    .sidebar ul {
        list-style-type: none;
        padding: 0;
        margin: 0;
    }

    .sidebar ul li {
        margin-bottom: 0;
    }
    .sidebar ul li a {
        display: flex;
        align-items: center;
        padding: 0;
        border-radius: 0;
        text-decoration: none;
        color: #333;
    }
    .sidebar ul li a:hover {
        background: #e0e0e0;
    }
    .sidebar-label {
        transition: opacity 0.2s;
        white-space: nowrap;
    }
    nav {
        display: flex; 
        align-items: center; 
        justify-content: space-between; 
        background: #dddddd; 
        padding: 10px;
    }
    a {
        display: flex;
        align-items: center;
        padding: 0;
        border-radius: 0;
        text-decoration: none;
        color: #333;
    }