body {
            font-family: sans-serif;
            margin: 0;
            background-color: #f7f8fa;
        }
        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px;
            background-color: #fff;
            border-bottom: 1px solid #eee;
            position: relative;
        }
        .header-center {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }
        .header-center img {
            width: 80px;
            height: auto;
            max-width: 100%;
            object-fit: contain;
        }
        .header-left {
            display: flex;
            align-items: center;
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .menu-icon {
            font-size: 24px;
            margin-right: 15px;
        }
        .logo {
            font-weight: bold;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        .login-btn {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: #333;
        }
        .notification-icon {
            font-size: 24px;
            position: relative;
        }
        .notification-badge {
            position: absolute;
            top: -5px;
            right: -5px;
            background-color: red;
            color: white;
            border-radius: 50%;
            padding: 2px 5px;
            font-size: 10px;
        }
        .main-content {
            padding: 20px;
        }
        .quick-access, .my-learning {
            margin-bottom: 30px;
        }
        h2 {
            font-size: 18px;
            color: #333;
            margin-bottom: 10px;
        }
        .card-container {
            display: flex;
            gap: 15px;
        }
        .card {
            background-color: #fff;
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            flex: 1;
        }
        .card-icon {
            font-size: 30px;
            margin-bottom: 10px;
        }
        .card-new {
            position: absolute;
            top: 10px;
            right: 10px;
            background-color: red;
            color: white;
            padding: 3px 8px;
            border-radius: 5px;
            font-size: 12px;
        }
        .my-learning-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .learning-card {
            display: flex;
            align-items: center;
            background-color: #fff;
            border-radius: 10px;
            padding: 15px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        .learning-card-icon {
            font-size: 24px;
            margin-right: 15px;
        }
        .pink { background-color: #ffebee; color: #c62828; }
        .blue { background-color: #e3f2fd; color: #1565c0; }
        .yellow { background-color: #fffde7; color: #fbc02d; }
        .cyan { background-color: #e0f7fa; color: #00838f; }


        .footer {
            display: flex;
            justify-content: space-around;
            position: fixed;
            bottom: 0;
            width: 100%;
            background-color: #fff;
            border-top: 1px solid #eee;
            padding: 10px 0;
        }
        .footer-item {
            text-align: center;
            color: #999;
        }
        .footer-item.active {
            color: #007bff;
        }
        .footer-icon {
            font-size: 24px;
            margin-bottom: 5px;
        }
        .side-menu {
            position: fixed;
            top: 0;
            left: -280px; /* Adjusted width */
            width: 280px; /* Adjusted width */
            height: 100%;
            background-color: #fff;
            box-shadow: 2px 0 5px rgba(0,0,0,0.1);
            transition: left 0.3s;
            z-index: 1000;
            display: flex;
            flex-direction: column;
        }
        .side-menu-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px;
            background-color: #00b0ff;
            color: white;
            font-size: 20px;
            font-weight: bold;
        }
        .close-btn {
            font-size: 24px;
            cursor: pointer;
        }
        .side-menu ul {
            list-style: none;
            padding: 20px 0;
            margin: 0;
            flex-grow: 1;
        }
        .side-menu li {
            margin: 0;
        }
        .side-menu a {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 15px 20px;
            text-decoration: none;
            color: #333;
            font-size: 16px;
            border-bottom: 1px solid #f0f0f0;
        }
        .side-menu a:hover {
            background-color: #f7f8fa;
        }
        .side-menu i {
            font-size: 20px;
            width: 24px;
            text-align: center;
        }
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.5);
            z-index: 999;
            display: none;
        }