body {
        margin: 0;
        font-family: Arial, sans-serif;
        background: linear-gradient(135deg, #1e90ff, #4682b4);
        color: #2d3436;
    }

    /* Sidebar */
    .sidebar {
        width: 250px;
        background: linear-gradient(135deg, #00bfff, #1e90ff);
        position: fixed;
        height: 100vh;
        padding-top: 20px;
        color: white;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.2);
    }

    .sidebar .logo {
        text-align: center;
        font-size: 1.8rem;
        font-weight: bold;
        color: #ffffff;
        margin-bottom: 30px;
        text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
    }

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

    .sidebar ul li {
        padding: 15px 20px;
        margin: 5px 0;
        cursor: pointer;
        border-radius: 8px;
        transition: all 0.3s ease;
        font-weight: 500;
    }

    .sidebar ul li:hover {
        background: rgba(255, 255, 255, 0.2);
        color: #ffffff;
        transform: scale(1.05);
    }

    .sidebar ul li a {
        text-decoration: none;
        color: inherit;
        display: flex;
        align-items: center;
    }

    .sidebar ul li i {
        margin-right: 15px;
        font-size: 1.2rem;
    }

    /* Main Content */
    .main-content {
        margin-left: 10px;
        padding: 20px;
    }

    .main-content .header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: rgba(255, 255, 255, 0.8);
        padding: 15px 20px;
        border-radius: 12px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }

    .main-content .header .search-bar {
        width: 300px;
        padding: 10px;
        border-radius: 8px;
        border: 1px solid #ccc;
        outline: none;
        transition: border-color 0.3s ease;
    }

    .main-content .header .search-bar:focus {
        border-color: #1e90ff;
    }

    .card {
        border-radius: 15px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        margin-bottom: 20px;
        background: white;
        padding: 20px;
    }

    .table-container {
        overflow-x: auto;
        border-radius: 15px;
        background-color: white;
        padding: 20px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .table {
        width: 100%;
        border-collapse: collapse;
    }

    .table th, .table td {
        padding: 15px;
        text-align: left;
        font-size: 0.9rem;
    }

    .table th {
        background: linear-gradient(135deg, #1e90ff, #4682b4);
        color: white;
        font-weight: bold;
        text-transform: uppercase;
        letter-spacing: 1px;
    }

    .table tr:nth-child(even) {
        background-color: #f9f9f9;
    }

    .table tr:hover {
        background-color: #e0f7fa;
    }

    .table td {
        color: #333;
    }

    .table .actions {
        display: flex;
        gap: 10px;
        justify-content: center;
    }

    .btn {
        border: none;
        padding: 8px 12px;
        font-size: 0.9rem;
        border-radius: 5px;
        cursor: pointer;
        text-align: center;
        transition: all 0.3s ease;
    }

    .btn-primary {
        background: linear-gradient(135deg, #1e90ff, #4682b4);
        color: white;
    }

    .btn-primary:hover {
        background: linear-gradient(135deg, #007acc, #35648a);
        transform: scale(1.05);
    }

    .btn-danger {
        background: linear-gradient(135deg, #ff6b6b, #ee5253);
        color: white;
    }

    .btn-danger:hover {
        background: linear-gradient(135deg, #e55039, #ff4d4d);
        transform: scale(1.05);
    }

    .footer {
        text-align: center;
        margin-top: 20px;
        padding: 15px 0;
        background: rgba(255, 255, 255, 0.9);
        border-radius: 15px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        font-size: 0.9rem;
    }

    /* Responsive Design */
    @media (max-width: 992px) {
        .sidebar {
            width: 200px;
        }

        .main-content {
            margin-left: 200px;
        }

        .table th, .table td {
            font-size: 0.85rem;
        }

        .search-bar {
            width: 250px;
        }
    }

    @media (max-width: 768px) {
        .sidebar {
            width: 100%;
            height: auto;
            position: relative;
        }

        .main-content {
            margin-left: 0;
        }

        .search-bar {
            width: 100%;
            margin-bottom: 15px;
        }

        .table th, .table td {
            font-size: 0.8rem;
            padding: 10px;
        }

        .btn {
            font-size: 0.8rem;
        }

        .btn-primary, .btn-danger {
            font-size: 0.85rem;
        }
    }

    @media (max-width: 576px) {
        .table th, .table td {
            padding: 8px;
        }

        .btn {
            font-size: 0.75rem;
        }

        .footer {
            font-size: 0.8rem;
        }
    }