:root {
            --primary-color: #6366f1;
            --primary-dark: #4f46e5;
            --secondary-color: #10b981;
            --accent-color: #f59e0b;
            --bg-primary: #0f172a;
            --bg-secondary: #1e293b;
            --bg-card: #334155;
            --text-primary: #f8fafc;
            --text-secondary: #cbd5e1;
            --text-muted: #94a3b8;
            --border-color: #475569;
            --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            color: var(--text-primary);
            min-height: 100vh;
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Animated Background */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
            z-index: -1;
            animation: backgroundShift 20s ease-in-out infinite;
        }

        @keyframes backgroundShift {
            0%, 100% { transform: translateX(0) translateY(0); }
            25% { transform: translateX(-20px) translateY(-10px); }
            50% { transform: translateX(20px) translateY(10px); }
            75% { transform: translateX(-10px) translateY(20px); }
        }

        /* Navigation */
        .navbar {
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 1rem 0;
            box-shadow: var(--shadow-lg);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .navbar-brand img {
            height: 45px;
            width: auto;
            filter: brightness(1.1);
            transition: transform 0.3s ease;
        }

        .navbar-brand img:hover {
            transform: scale(1.05);
        }

        .navbar-nav .nav-link {
            color: var(--text-primary) !important;
            font-weight: 500;
            margin: 0 1rem;
            padding: 0.75rem 1.5rem !important;
            border-radius: 50px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .navbar-nav .nav-link::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            transition: left 0.3s ease;
            z-index: -1;
        }

        .navbar-nav .nav-link:hover::before {
            left: 0;
        }

        .navbar-nav .nav-link:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* Main Content */
        main {
            margin-top: 100px;
            padding: 2rem 0;
        }

        .container {
            max-width: 1400px;
        }

        /* Channel Title */
        #channel-title {
            margin-bottom: 2rem;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.5s ease;
        }

        #channel-title.show {
            opacity: 1;
            transform: translateY(0);
        }

        #channel-title h3 {
            font-size: 2rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-align: center;
            margin-bottom: 0;
        }

        /* Video Player */
        .iframe-container {
            position: relative;
            width: 100%;
            height: 0;
            padding-bottom: 56.25%;
            background: var(--bg-card);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            border: 2px solid var(--border-color);
            opacity: 0;
            transform: scale(0.95);
            transition: all 0.5s ease;
        }

        .iframe-container.show {
            opacity: 1;
            transform: scale(1);
        }

        .iframe-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
            border-radius: 20px;
        }

        /* Search Section */
        .search-channel {
            margin-bottom: 3rem;
            position: relative;
        }

        .search-channel .form-control {
            background: rgba(51, 65, 85, 0.8);
            border: 2px solid var(--border-color);
            border-radius: 50px;
            color: var(--text-primary);
            padding: 1rem 1.5rem 1rem 3.5rem;
            font-size: 1.1rem;
            font-weight: 500;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-md);
        }

        .search-channel .form-control:focus {
            background: rgba(51, 65, 85, 0.9);
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
            outline: none;
        }

        .search-channel .form-control::placeholder {
            color: var(--text-muted);
        }

        .search-channel::before {
            content: '\f002';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 1.25rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            z-index: 10;
        }

        /* Channel Grid */
        .list-channels {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        /* Channel Cards */
        .channel {
            background: rgba(51, 65, 85, 0.6);
            border-radius: 20px;
            padding: 2rem;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            border: 1px solid var(--border-color);
            backdrop-filter: blur(20px);
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            position: relative;
            overflow: hidden;
            transform: translateY(0);
            opacity: 0;
            animation: fadeInUp 0.6s ease forwards;
        }

        .channel:nth-child(odd) {
            animation-delay: 0.1s;
        }

        .channel:nth-child(even) {
            animation-delay: 0.2s;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .channel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            opacity: 0;
            transition: opacity 0.3s ease;
            z-index: -1;
        }

        .channel:hover::before {
            opacity: 0.1;
        }

        .channel:hover {
            transform: translateY(-10px) scale(1.02);
            border-color: var(--primary-color);
            box-shadow: var(--shadow-xl);
        }

        .channel img {
            width: 100px;
            height: 100px;
            object-fit: contain;
            border-radius: 15px;
            margin-bottom: 1.5rem;
            transition: transform 0.3s ease;
            background: rgba(248, 250, 252, 0.1);
            padding: 15px;
            box-shadow: var(--shadow-md);
        }

        .channel:hover img {
            transform: scale(1.1) rotate(5deg);
        }

        .channel .name {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1.5rem;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }

        .channel input[type="text"] {
            width: 100%;
            background: rgba(15, 23, 42, 0.8);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            color: var(--text-secondary);
            padding: 0.75rem 1rem;
            font-size: 0.875rem;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s ease;
            font-family: 'Courier New', monospace;
        }

        .channel input[type="text"]:hover {
            background: rgba(15, 23, 42, 0.9);
            border-color: var(--primary-color);
            transform: scale(1.02);
        }

        .channel input[type="text"]:focus {
            outline: none;
            background: rgba(15, 23, 42, 1);
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }

        /* Play Button Overlay */
        .channel::after {
            content: '\f04b';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 3rem;
            color: var(--primary-color);
            opacity: 0;
            transition: all 0.3s ease;
            text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        }

        .channel:hover::after {
            opacity: 0.8;
            transform: translate(-50%, -50%) scale(1.1);
        }

        /* Social Sharing */
        .sharethis-inline-share-buttons {
            margin: 4rem 0;
            text-align: center;
            padding: 2rem;
            background: rgba(51, 65, 85, 0.3);
            border-radius: 20px;
            backdrop-filter: blur(10px);
        }

        /* Widget Content */
        .widget-content {
            text-align: center;
            margin: 3rem 0;
            padding: 2rem;
        }

        .widget-content a {
            display: inline-block;
            transition: transform 0.3s ease;
            position: relative;
        }

        .widget-content a:hover {
            transform: scale(1.1);
        }

        .widget-content img {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            box-shadow: var(--shadow-xl);
            border: 4px solid var(--primary-color);
            transition: all 0.3s ease;
            filter: brightness(1.1);
        }

        .widget-content img:hover {
            border-color: var(--secondary-color);
            box-shadow: 0 0 30px rgba(16, 185, 129, 0.4);
        }

        .widget-content p {
            margin-top: 1rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Alert Styles */
        .alert {
            position: fixed;
            top: 30px;
            right: 30px;
            background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
            color: white;
            padding: 1rem 2rem;
            border-radius: 50px;
            display: none;
            z-index: 2000;
            box-shadow: var(--shadow-xl);
            font-weight: 600;
            animation: slideInRight 0.4s ease;
        }

        @keyframes slideInRight {
            from {
                transform: translateX(100%);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }

        /* Loading Animation */
        .loading {
            display: inline-block;
            width: 40px;
            height: 40px;
            border: 4px solid rgba(99, 102, 241, 0.3);
            border-radius: 50%;
            border-top-color: var(--primary-color);
            animation: spin 1s ease-in-out infinite;
            margin: 2rem auto;
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            main {
                margin-top: 80px;
                padding: 1rem 0;
            }

            .container {
                padding: 0 1rem;
            }
            
            .list-channels {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
                gap: 1.5rem;
            }
            
            .channel {
                padding: 1.5rem;
            }
            
            .channel img {
                width: 80px;
                height: 80px;
            }
            
            #channel-title h3 {
                font-size: 1.5rem;
            }
            
            .navbar-nav .nav-link {
                margin: 0.5rem 0;
                text-align: center;
            }

            .search-channel .form-control {
                font-size: 1rem;
                padding: 0.875rem 1.25rem 0.875rem 3rem;
            }
        }

        @media (max-width: 480px) {
            .list-channels {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            
            .channel {
                padding: 1.25rem;
            }
            
            .search-channel .form-control {
                padding: 0.75rem 1rem 0.75rem 2.75rem;
            }

            .widget-content img {
                width: 100px;
                height: 100px;
            }
        }

        /* Scrollbar Styles */
        ::-webkit-scrollbar {
            width: 12px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-secondary);
        }

        ::-webkit-scrollbar-thumb {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 6px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
        }

        /* Focus States for Accessibility */
        .channel:focus,
        .search-channel .form-control:focus,
        .navbar-nav .nav-link:focus {
            outline: 2px solid var(--primary-color);
            outline-offset: 2px;
        }

        /* Smooth Transitions */
        * {
            transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
        }