:root {
            --primary: #5E35B1;
            --primary-dark: #4527A0;
            --secondary: #FF9800;
            --accent: #00E5FF;
            --light: #F5F5F5;
            --dark: #212121;
            --gray: #757575;
            --success: #4CAF50;
            --warning: #FFC107;
            --danger: #F44336;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --radius: 12px;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul, ol {
            list-style-position: inside;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            border: 0;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            color: var(--accent);
        }
        .main-nav ul {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--accent);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: var(--transition);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background: var(--primary-dark);
            padding: 1rem;
            flex-direction: column;
            gap: 1rem;
        }
        .mobile-nav.active {
            display: flex;
        }
        .breadcrumb {
            background-color: #EDE7F6;
            padding: 1rem 20px;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: inline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .hero {
            padding: 3rem 20px;
            text-align: center;
            background: linear-gradient(rgba(93, 53, 177, 0.05), rgba(255, 152, 0, 0.05));
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            color: var(--primary-dark);
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--gray);
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        .search-box {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            box-shadow: var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-box input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-box button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: #E68900;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 3rem 20px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .main-content {
            background: white;
            padding: 2.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        article section {
            margin-bottom: 3rem;
        }
        article h2 {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--secondary);
        }
        article h3 {
            font-size: 1.5rem;
            color: var(--primary-dark);
            margin: 1.5rem 0 1rem;
        }
        article p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        article strong {
            color: var(--primary);
            font-weight: 700;
        }
        .highlight-box {
            background: #E3F2FD;
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .video-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .video-card {
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .video-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 20px rgba(0,0,0,0.15);
        }
        .video-thumb {
            height: 160px;
            background: linear-gradient(45deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
        }
        .video-info {
            padding: 1.2rem;
        }
        .video-info h4 {
            margin-bottom: 0.5rem;
            color: var(--dark);
        }
        .stats {
            display: flex;
            justify-content: space-between;
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 0.8rem;
        }
        .featured-image {
            margin: 2.5rem auto;
            text-align: center;
        }
        .featured-image figcaption {
            font-style: italic;
            color: var(--gray);
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 1.2rem;
            font-size: 1.4rem;
        }
        .rating-form .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .stars input {
            display: none;
        }
        .stars label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .stars label:hover,
        .stars label:hover ~ label,
        .stars input:checked ~ label {
            color: var(--warning);
        }
        .rating-form textarea,
        .comment-form textarea,
        .rating-form input,
        .comment-form input {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #ccc;
            border-radius: var(--radius);
            font-family: inherit;
        }
        .rating-form button,
        .comment-form button {
            background: var(--success);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            width: 100%;
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background: #388E3C;
        }
        .top-videos ul {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .top-videos li {
            padding: 0.8rem;
            background: #F5F5F5;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .top-videos li:hover {
            background: #E0E0E0;
            transform: translateX(5px);
        }
        .footer-links {
            background: var(--dark);
            color: white;
            padding: 3rem 20px;
        }
        .links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 2rem;
        }
        .web-link {
            background: rgba(255,255,255,0.05);
            padding: 1.2rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-5px);
        }
        .web-link a {
            display: block;
            color: var(--accent);
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .site-footer {
            background: #111;
            color: #aaa;
            text-align: center;
            padding: 2rem 20px;
        }
        .copyright {
            margin-top: 1rem;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            html {
                font-size: 15px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .main-nav ul {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .content-wrapper {
                padding: 2rem 15px;
                gap: 2rem;
            }
            .main-content {
                padding: 1.5rem;
            }
            .video-showcase {
                grid-template-columns: 1fr;
            }
        }