:root {
            --primary-dark: #1a1a2e;
            --primary-accent: #00a8ff;
            --secondary-accent: #ff6b6b;
            --text-primary: #f0f0f0;
            --text-secondary: #b0b0c0;
            --background-card: #2d3047;
            --border-color: #404567;
            --success: #4cd964;
            --warning: #ffcc00;
            --shadow: rgba(0, 0, 0, 0.4);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background: linear-gradient(135deg, var(--primary-dark) 0%, #16213e 100%);
            background-attachment: fixed;
            min-height: 100vh;
            padding-top: 80px;
        }
        a {
            color: var(--primary-accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-accent);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: rgba(26, 26, 46, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary-accent), var(--secondary-accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
        }
        .logo:hover {
            opacity: 0.9;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-links a {
            font-weight: 600;
            font-size: 1rem;
            position: relative;
            padding: 5px 0;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-accent);
            transition: width 0.3s ease;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary-accent);
        }
        .breadcrumb .separator {
            margin: 0 8px;
        }
        .search-container {
            margin: 30px 0;
            padding: 25px;
            background: var(--background-card);
            border-radius: 12px;
            box-shadow: 0 8px 20px var(--shadow);
            border: 1px solid var(--border-color);
        }
        .search-container h2 {
            margin-bottom: 15px;
            color: var(--primary-accent);
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex-grow: 1;
            padding: 14px 18px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary-accent);
            box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.2);
        }
        .search-button {
            padding: 14px 25px;
            background: linear-gradient(to right, var(--primary-accent), #0097e6);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-button:hover {
            background: linear-gradient(to right, #0097e6, var(--primary-accent));
            transform: translateY(-2px);
        }
        main {
            padding: 20px 0 50px;
        }
        article {
            background: var(--background-card);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 12px 30px var(--shadow);
            border: 1px solid var(--border-color);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: var(--text-primary);
            line-height: 1.2;
            text-align: center;
            background: linear-gradient(to right, #fff, var(--primary-accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        h2 {
            font-size: 2rem;
            margin: 40px 0 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-color);
            color: var(--text-primary);
        }
        h3 {
            font-size: 1.5rem;
            margin: 30px 0 15px;
            color: var(--primary-accent);
        }
        h4 {
            font-size: 1.2rem;
            margin: 20px 0 10px;
            color: var(--text-secondary);
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            color: var(--text-secondary);
        }
        .lead {
            font-size: 1.3rem;
            color: var(--text-primary);
            font-weight: 500;
            text-align: center;
            margin-bottom: 40px;
            padding: 20px;
            background: rgba(0, 168, 255, 0.05);
            border-radius: 10px;
            border-left: 4px solid var(--primary-accent);
        }
        strong {
            color: var(--text-primary);
            font-weight: 700;
        }
        em {
            color: var(--secondary-accent);
            font-style: italic;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
            color: var(--text-secondary);
        }
        li {
            margin-bottom: 10px;
        }
        .highlight-box {
            background: linear-gradient(135deg, rgba(0, 168, 255, 0.1), rgba(255, 107, 107, 0.1));
            border-left: 5px solid var(--primary-accent);
            padding: 25px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 25px;
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-accent);
            box-shadow: 0 10px 20px var(--shadow);
        }
        .stat-card h4 {
            color: var(--primary-accent);
            margin-top: 0;
        }
        .icon-list {
            list-style: none;
            margin-left: 0;
        }
        .icon-list li {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
        }
        .icon-list i {
            color: var(--success);
            font-size: 1.2rem;
            width: 24px;
        }
        .feature-image {
            width: 100%;
            max-width: 800px;
            margin: 40px auto;
            display: block;
            border-radius: 12px;
            box-shadow: 0 15px 35px var(--shadow);
            border: 2px solid var(--border-color);
            transition: var(--transition);
        }
        .feature-image:hover {
            transform: scale(1.01);
            box-shadow: 0 20px 40px var(--shadow);
        }
        .tab-container {
            margin: 40px 0;
        }
        .tab-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 10px;
        }
        .tab-button {
            padding: 12px 24px;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 8px 8px 0 0;
            color: var(--text-secondary);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .tab-button:hover {
            background: rgba(0, 168, 255, 0.1);
            color: var(--primary-accent);
        }
        .tab-button.active {
            background: var(--primary-accent);
            color: white;
            border-color: var(--primary-accent);
        }
        .tab-content {
            padding: 25px;
            background: rgba(0, 0, 0, 0.2);
            border-radius: 0 10px 10px 10px;
            border: 1px solid var(--border-color);
            display: none;
        }
        .tab-content.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .user-interaction {
            margin: 50px 0;
        }
        .rating-section, .comments-section {
            background: var(--background-card);
            border-radius: 12px;
            padding: 30px;
            margin-bottom: 30px;
            border: 1px solid var(--border-color);
        }
        .rating-form, .comment-form {
            display: grid;
            gap: 20px;
            margin-top: 20px;
        }
        .stars {
            display: flex;
            gap: 10px;
            direction: rtl;
            margin-bottom: 10px;
        }
        .star {
            font-size: 2rem;
            color: #444;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star:hover ~ .star {
            color: var(--warning);
        }
        .star.active {
            color: var(--warning);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        label {
            font-weight: 600;
            color: var(--text-primary);
        }
        input, textarea, select {
            padding: 14px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-accent);
            box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.2);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            padding: 16px 30px;
            background: linear-gradient(to right, var(--primary-accent), #0097e6);
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            justify-self: start;
        }
        .submit-button:hover {
            background: linear-gradient(to right, #0097e6, var(--primary-accent));
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0, 168, 255, 0.3);
        }
        .comment {
            border-bottom: 1px solid var(--border-color);
            padding: 25px 0;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            flex-wrap: wrap;
            gap: 10px;
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary-accent);
        }
        .comment-date {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin: 50px 0 30px;
            padding: 30px;
            background: var(--background-card);
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }
        .web-link {
            padding: 15px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 8px;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .web-link:hover {
            border-color: var(--primary-accent);
            background: rgba(0, 168, 255, 0.05);
            transform: translateY(-3px);
        }
        footer {
            background: rgba(0, 0, 0, 0.5);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 20px;
            text-align: center;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 30px;
        }
        .copyright {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            max-width: 800px;
            margin: 0 auto;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.3rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .stats-grid {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--primary-dark);
                flex-direction: column;
                align-items: center;
                padding: 30px 0;
                gap: 25px;
                transform: translateY(-100%);
                opacity: 0;
                transition: var(--transition);
                z-index: 999;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 20px var(--shadow);
            }
            .nav-links.active {
                transform: translateY(0);
                opacity: 1;
            }
            .search-form {
                flex-direction: column;
            }
            .tab-buttons {
                overflow-x: auto;
                flex-wrap: nowrap;
                padding-bottom: 5px;
            }
            .tab-button {
                white-space: nowrap;
            }
            article {
                padding: 25px;
            }
        }
        @media (max-width: 576px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .container {
                padding: 0 15px;
            }
            .feature-image {
                margin: 30px auto;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }