:root {
            --primary: #04fc42;
            --primary-dark: #03c734;
            --primary-light: #e0ffe8;
            --primary-extra-light: #f5fff7;
            --text-dark: #1a1a1a;
            --text-medium: #4a4a4a;
            --text-light: #777;
            --bg-light: #f9f9f9;
            --bg-dark: #1a1a1a;
            --border-color: #e0e0e0;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --border-radius-sm: 8px;
            --border-radius-md: 12px;
            --border-radius-lg: 16px;
            --gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            --premium-gradient: linear-gradient(135deg, #8A2BE2 0%, #4B0082 100%);
            --gold: #FFD700;
            --silver: #C0C0C0;
        }

        body {
            font-family: 'Poppins', sans-serif;
            color: var(--text-dark);
            background-color: #fff;
            line-height: 1.6;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        h1, h2, h3, h4 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
        }

        /* Custom scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }

        /* Course icons */
        .course-icon {
            font-size: 1.8rem;
            margin-bottom: 10px;
            transition: var(--transition);
        }

        .html-icon { color: #E44D26; }
        .css-icon { color: #2965F1; }
        .js-icon { color: #F0DB4F; }
        .php-icon { color: #777BB4; }
        .cpp-icon { color: #00599C; }
        .python-icon { color: #3776AB; }
        .java-icon { color: #5382A1; }
        .ts-icon { color: #3178C6; }
        .csharp-icon { color: #239120; }
        .forex-icon { color: #16C784; }

        /* Premium Badge */
        .premium-badge {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            background: var(--premium-gradient);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: 0 4px 10px rgba(138, 43, 226, 0.3);
            z-index: 10;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        /* Course Module */
        .course-module {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 3rem;
            background: #fff;
            border-radius: var(--border-radius-lg);
            box-shadow: var(--shadow-md);
            padding: 2.5rem;
            animation: fadeIn 0.5s ease;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .course-module::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--primary);
            transition: var(--transition);
        }

        .course-module:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .course-module:hover::before {
            width: 8px;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Module Icon */
        .module-icon {
            width: 120px;
            height: 120px;
            margin: 1.5rem auto;
            display: block;
            object-fit: contain;
            filter: drop-shadow(0 5px 10px rgba(0, 0, 0, 0.1));
            transition: var(--transition);
        }

        .course-module:hover .module-icon {
            transform: scale(1.05) rotate(5deg);
        }

        /* Difficulty Badge */
        .difficulty {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-top: 0.5rem;
        }

        /* Code Editor */
        .code-editor-container {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin: 2rem 0;
            border-radius: var(--border-radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .editor-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-dark);
            color: white;
            padding: 0.7rem 1.2rem;
        }

        .editor-tabs {
            display: flex;
            gap: 0.5rem;
        }

        .editor-tab {
            padding: 0.4rem 0.9rem;
            background: #2a2a2a;
            border-radius: 4px;
            font-size: 0.8rem;
            cursor: pointer;
            font-family: 'Poppins', sans-serif;
            font-weight: 500;
            transition: var(--transition);
        }

        .editor-tab.active {
            background: var(--primary);
            color: #000;
        }

        .editor-actions {
            display: flex;
            gap: 0.5rem;
        }

        .editor-actions button {
            background: rgba(255, 255, 255, 0.1);
            border: none;
            color: white;
            cursor: pointer;
            padding: 0.4rem 0.8rem;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .editor-actions button:hover {
            background: rgba(255, 255, 255, 0.2);
            color: var(--primary);
        }

        .code-editor {
            width: 100%;
            min-height: 250px;
            background: #1e1e1e;
            color: #d4d4d4;
            font-family: 'Fira Code', 'Courier New', monospace;
            font-size: 14px;
            line-height: 1.5;
            padding: 1.2rem;
            border: none;
            outline: none;
            tab-size: 2;
            resize: vertical;
        }

        .preview-container {
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-md);
            padding: 1.5rem;
            margin-top: 1rem;
            min-height: 200px;
            background: white;
        }

        .run-btn {
            background: var(--primary);
            color: #000;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            margin-top: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            box-shadow: 0 4px 10px rgba(4, 252, 66, 0.3);
        }

        .run-btn:hover {
            background: var(--primary-dark);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(4, 252, 66, 0.4);
        }

        .output-title {
            font-size: 0.9rem;
            color: var(--text-medium);
            margin: 1.5rem 0 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
        }

        .output-title i {
            color: var(--primary);
        }

        /* Course Five (Key Points) */
        .course-five {
            background: var(--primary-extra-light);
            padding: 1.8rem;
            border-radius: var(--border-radius-md);
            margin-top: 2rem;
            border-left: 4px solid var(--primary);
        }

        .course-five h3 {
            color: var(--primary-dark);
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }

        .course-five ul, .course-five ol {
            padding-left: 1.2rem;
            margin-bottom: 1rem;
        }

        .course-five li {
            margin-bottom: 0.7rem;
            color: var(--text-medium);
            line-height: 1.6;
        }

        .course-five code {
            background: rgba(4, 252, 66, 0.1);
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
            font-family: 'Fira Code', 'Courier New', monospace;
            font-size: 0.9rem;
            color: var(--primary-dark);
            border: 1px solid rgba(4, 252, 66, 0.2);
        }

        /* Premium Subscription */
        .premium-subscription {
            background: var(--premium-gradient);
            color: white;
            text-align: center;
            padding: 5rem 2rem;
            margin: 5rem 0;
            border-radius: var(--border-radius-lg);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .premium-subscription::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .premium-subscription::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 250px;
            height: 250px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .premium-features {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 3rem;
            position: relative;
            z-index: 1;
        }

        .premium-feature {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            padding: 1.5rem;
            border-radius: var(--border-radius-md);
            width: 250px;
            transition: var(--transition);
        }

        .premium-feature:hover {
            transform: translateY(-5px);
            background: rgba(255, 255, 255, 0.15);
        }

        .premium-feature i {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--gold);
        }

        .pricing-options {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 3rem;
            position: relative;
            z-index: 1;
        }

        .pricing-option {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            padding: 2rem;
            border-radius: var(--border-radius-lg);
            width: 280px;
            transition: var(--transition);
            border: 2px solid transparent;
        }

        .pricing-option:hover {
            transform: translateY(-5px);
            border-color: var(--gold);
        }

        .price {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            color: var(--gold);
        }

        .price span {
            font-size: 1rem;
            font-weight: 400;
        }

        .pricing-features {
            list-style: none;
            margin-bottom: 2rem;
            text-align: left;
        }

        .pricing-features li {
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .pricing-features li i {
            color: var(--gold);
        }

        .pricing-btn {
            background: var(--gold);
            color: #000;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 30px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
        }

        .pricing-btn:hover {
            background: white;
            transform: translateY(-2px);
        }

        .premium-cta-btn {
            background: white;
            color: #8A2BE2;
            border: none;
            padding: 1.2rem 3rem;
            border-radius: 50px;
            font-size: 1.2rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 1;
            display: inline-flex;
            align-items: center;
            gap: 0.8rem;
            animation: float 3s ease-in-out infinite;
        }

        .premium-cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
            animation: none;
        }

        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0px); }
        }

        /* Custom Bootstrap Navbar */
        .navbar-custom {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(8px);
            transition: all 0.3s ease;
            height: 80px;
        }

        .navbar-custom.scrolled {
            height: 70px;
            box-shadow: var(--shadow-md);
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition);
        }

        .logo:hover {
            transform: translateY(-2px);
        }

        .nav-link-custom {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            position: relative;
            padding: 0.5rem 0;
        }

        .nav-link-custom:hover {
            color: var(--primary);
        }

        .nav-link-custom::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--primary);
            transition: width 0.3s ease;
            border-radius: 3px;
        }

        .nav-link-custom:hover::after {
            width: 100%;
        }

        .courses-btn {
            background: var(--primary-light);
            color: var(--primary-dark);
            border: none;
            padding: 0.6rem 1.2rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
        }

        .courses-btn:hover {
            background: var(--primary);
            color: white;
            box-shadow: 0 5px 15px rgba(4, 252, 66, 0.3);
            transform: translateY(-2px);
        }

        .dropdown-content {
            position: absolute;
            right: 0;
            top: calc(100% + 10px);
            background: white;
            min-width: 250px;
            box-shadow: var(--shadow-lg);
            border-radius: var(--border-radius-md);
            padding: 0.5rem 0;
            z-index: 100;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            transform: translateY(10px);
        }

        .dropdown:hover .dropdown-content {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-item-custom {
            display: flex;
            align-items: center;
            padding: 0.8rem 1.5rem;
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition);
            font-weight: 500;
        }

        .dropdown-item-custom:hover {
            background: var(--primary-extra-light);
            color: var(--primary-dark);
            padding-left: 1.7rem;
        }

        .dropdown-item-custom i {
            margin-right: 0.8rem;
            width: 20px;
            text-align: center;
            font-size: 1.1rem;
        }

        /* Course Navigation */
        .course-navigation {
            position: sticky;
            top: 80px;
            background: white;
            z-index: 900;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            border-bottom: 1px solid var(--border-color);
        }

        .category-btn {
            background: var(--primary-light);
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .category-btn:hover {
            background: var(--primary);
            color: white;
            box-shadow: 0 5px 15px rgba(4, 252, 66, 0.3);
        }

        .category-dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            background: white;
            min-width: 220px;
            box-shadow: var(--shadow-lg);
            border-radius: var(--border-radius-md);
            padding: 1rem 0;
            z-index: 100;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            transform: translateY(10px);
        }

        .course-category:hover .category-dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .category-item {
            display: block;
            padding: 0.8rem 1.5rem;
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .category-item:hover {
            background: var(--primary-extra-light);
            color: var(--primary-dark);
            padding-left: 1.8rem;
        }

        .level-btn {
            background: transparent;
            border: 2px solid var(--primary-light);
            padding: 0.6rem 1.2rem;
            border-radius: 30px;
            font-weight: 600;
            color: var(--text-medium);
            cursor: pointer;
            transition: var(--transition);
        }

        .level-btn:hover, .level-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: white;
        }

        .search-input {
            padding: 0.8rem 1.5rem 0.8rem 3rem;
            border: 2px solid var(--primary-light);
            border-radius: 30px;
            font-size: 0.95rem;
            width: 250px;
            transition: var(--transition);
        }

        .search-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(4, 252, 66, 0.2);
        }

        .search-icon {
            position: absolute;
            left: 1.2rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
        }

        /* Sidebar */
        .sidebar {
            position: fixed;
            left: 0;
            top: 80px;
            bottom: 0;
            width: 250px;
            background: rgba(255, 255, 255, 0.98);
            overflow-y: auto;
            padding: 1.5rem 0;
            box-shadow: 2px 0 15px rgba(0, 0, 0, 0.05);
            z-index: 999;
            transition: transform 0.3s ease;
            backdrop-filter: blur(8px);
            border-right: 1px solid var(--border-color);
        }

        .sidebar-item {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            padding: 0.8rem 1.5rem;
            margin: 0.3rem 1rem;
            border-radius: var(--border-radius-sm);
            color: var(--text-medium);
            text-decoration: none;
            transition: var(--transition);
            font-weight: 500;
            position: relative;
        }

        .sidebar-item:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            transform: translateX(5px);
        }

        .sidebar-item.active {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--primary);
        }

        .sidebar-item i {
            font-size: 1.1rem;
            width: 24px;
            text-align: center;
        }

        .progress-indicator {
            position: absolute;
            right: 1rem;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--primary-dark);
            font-weight: 600;
        }

        .sidebar-item.completed .progress-indicator {
            background: var(--primary);
            color: white;
        }

        /* Content Wrapper */
        .content-wrapper {
            margin-left: 250px;
            padding-top: 100px;
            transition: margin-left 0.3s ease;
        }

        /* Footer */
        footer {
            background: var(--bg-dark);
            color: white;
            padding: 3rem 0 1rem;
            margin-top: 4rem;
        }

        .footer-column h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
            position: relative;
            padding-bottom: 0.5rem;
        }

        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .footer-column p {
            margin-bottom: 1.5rem;
            line-height: 1.7;
            color: #ccc;
        }

        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            color: white;
            transition: var(--transition);
        }

        .social-links a:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.8rem;
        }

        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 0.5rem;
        }

        .footer-links i {
            font-size: 0.8rem;
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            color: #999;
            font-size: 0.9rem;
        }

        /* Responsive Styles */
        @media (max-width: 1200px) {
            .sidebar {
                width: 220px;
            }
            
            .content-wrapper {
                margin-left: 220px;
            }
        }

        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                width: 100%;
                top: 70px;
                z-index: 998;
            }
            
            .sidebar.active {
                transform: translateX(0);
            }
            
            .content-wrapper {
                margin-left: 0;
                padding-top: 140px;
                width: 100%;
                overflow-x: hidden;
            }
            
            .course-navigation {
                top: 70px;
                padding: 0.8rem 0;
                position: fixed;
                width: 100%;
                z-index: 996;
            }
            
            .pricing-options {
                flex-direction: column;
                align-items: center;
                gap: 1.5rem;
            }
            
            .pricing-option {
                width: 100%;
                max-width: 400px;
            }
            
            .premium-features {
                gap: 1.5rem;
            }
            
            .premium-feature {
                width: calc(50% - 1rem);
                min-width: 200px;
            }
        }

        @media (max-width: 768px) {
            .course-module {
                flex-direction: column;
                padding: 1.5rem;
                margin: 1rem;
                width: calc(100% - 2rem);
                gap: 1.5rem;
            }
            
            .module-icon {
                width: 80px;
                height: 80px;
                margin: 1rem auto;
            }
            
            .premium-subscription {
                padding: 3rem 1rem;
                margin: 3rem 1rem;
                width: calc(100% - 2rem);
                border-radius: 12px;
            }
            
            .premium-subscription h2 {
                font-size: 1.8rem;
                padding: 0 1rem;
            }
            
            .premium-subscription p {
                font-size: 1rem;
                padding: 0 1rem;
            }
            
            .premium-features {
                gap: 1rem;
                padding: 0 1rem;
            }
            
            .premium-feature {
                width: 100%;
                max-width: 100%;
                margin: 0 1rem;
            }
            
            .premium-cta-btn {
                padding: 1rem 2rem;
                font-size: 1rem;
                width: 90%;
                max-width: 300px;
                margin: 0 auto;
            }
            
            .course-five {
                padding: 1.2rem;
                margin: 1rem 0;
                width: 100%;
            }
            
            .category-btn {
                padding: 0.8rem 1rem;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            
            .level-btn {
                padding: 0.6rem 0.8rem;
                font-size: 0.8rem;
                min-width: 100px;
            }
            
            .price {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            .navbar-custom {
                height: 60px;
            }
            
            .logo {
                font-size: 1.2rem;
            }
            
            .course-navigation {
                top: 60px;
                padding: 0.6rem 0;
            }
            
            .course-module {
                padding: 1.2rem;
                margin: 0.8rem;
                width: calc(100% - 1.6rem);
                border-radius: 12px;
            }
            
            .module-icon {
                width: 70px;
                height: 70px;
            }
            
            .code-editor {
                font-size: 12px;
                padding: 0.8rem;
                min-height: 180px;
                width: 100%;
            }
            
            .editor-header {
                padding: 0.5rem;
            }
            
            .editor-tab {
                padding: 0.3rem 0.6rem;
                font-size: 0.7rem;
            }
            
            .editor-actions button {
                padding: 0.3rem 0.5rem;
                font-size: 0.7rem;
            }
            
            .run-btn {
                padding: 0.7rem 1.2rem;
                font-size: 0.85rem;
                width: 100%;
            }
            
            .preview-container {
                padding: 1rem;
                min-height: 150px;
                width: 100%;
            }
            
            .premium-subscription {
                padding: 2rem 0.8rem;
                margin: 2rem 0.8rem;
                width: calc(100% - 1.6rem);
            }
            
            .premium-subscription h2 {
                font-size: 1.5rem;
                line-height: 1.3;
                padding: 0 0.5rem;
            }
            
            .premium-subscription p {
                font-size: 0.95rem;
                margin-bottom: 1.5rem;
                padding: 0 0.5rem;
            }
            
            .premium-feature {
                padding: 1rem;
                margin: 0.5rem;
            }
            
            .premium-feature i {
                font-size: 1.8rem;
            }
            
            .premium-feature h3 {
                font-size: 1rem;
            }
            
            .premium-feature p {
                font-size: 0.85rem;
            }
            
            .pricing-option {
                padding: 1.2rem;
                margin: 0.5rem;
            }
            
            .price {
                font-size: 1.6rem;
            }
            
            .pricing-btn {
                padding: 0.7rem 1.2rem;
                font-size: 0.9rem;
            }
            
            .course-five {
                padding: 1rem;
                margin: 1rem 0;
            }
            
            .course-five h3 {
                font-size: 1.1rem;
            }
            
            .course-five li {
                font-size: 0.85rem;
                line-height: 1.4;
                margin-bottom: 0.5rem;
            }
            
            .sidebar {
                width: 100%;
                top: 60px;
            }
            
            .sidebar-item {
                padding: 0.7rem 1rem;
                margin: 0.2rem 0.5rem;
                font-size: 0.9rem;
            }

            .content-wrapper {
                padding-top: 130px;
            }
        }