* {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: Arial, sans-serif;
        }

        body {
            display: flex;
            min-height: 100vh;
            background-color: #f8f9fa;
        }

        /* --- SIDEBAR STYLE --- */
        .sidebar {
            width: 250px;
            background-color: #2c3e50;
            color: #ffffff;
            padding-top: 20px;
            flex-shrink: 0;
        }

        .sidebar h2 {
            font-size: 22px;
            padding: 10px 25px 25px 25px;
            font-weight: bold;
            border-bottom: 1px solid #34495e;
            margin-bottom: 20px;
        }

        .sidebar ul {
            list-style: none;
        }

        .sidebar ul li a {
            display: block;
            color: #bdc3c7;
            padding: 12px 25px;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.2s;
        }

        .sidebar ul li a:hover {
            background-color: #34495e;
            color: #ffffff;
        }

        /* --- MAIN CONTENT STYLE --- */
        .main-content {
            flex-grow: 1;
            padding: 40px;
            background-color: #f4f6f9;
        }

        .main-content h1 {
            font-size: 26px;
            color: #1a1a1a;
            margin-bottom: 20px;
        }

        .main-content h3 {
            font-size: 20px;
            color: #1a1a1a;
            margin: 30px 0 20px 0;
        }

        /* --- CARDS STYLE --- */
        .cards-container {
            display: flex;
            gap: 20px;
            margin-bottom: 20px;
        }

        .card {
            flex: 1;
            background-color: #ffffff;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

        .card .card-title {
            font-size: 16px;
            font-weight: bold;
            color: #333333;
            margin-bottom: 10px;
        }

        .card .card-value {
            font-size: 14px;
            color: #666666;
        }

        /* --- TABLE STYLE --- */
        .table-container {
            background-color: #ffffff;
            border-radius: 4px;
            overflow: hidden;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            text-align: left;
        }

        th {
            background-color: #edf1f5;
            color: #333333;
            font-weight: bold;
            padding: 15px;
        }

        td {
            padding: 15px;
            color: #444444;
            border-bottom: 1px solid #e9ecef;
        }

        tr:last-child td {
            border-bottom: none;
        }

        /* Cột trạng thái hoặc định dạng riêng nếu cần */
        .status {
            color: #444444;
        }