:root {
            --primary-blue: #0a2e5c;
            --secondary-gold: #c9a44c;
            --accent-red: #9e2a2b;
            --dark-bg: #0c1525;
            --light-bg: #f5f7fa;
            --text-light: #e6eaf0;
            --text-dark: #2c3e50;
            --shadow: 0 5px 15px rgba(10, 46, 92, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: var(--secondary-gold);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-red);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-bg) 100%);
            color: var(--text-light);
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(to right, var(--secondary-gold), #e8d9a0);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            background-color: #f0f4f8;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: var(--primary-blue);
        }
        .breadcrumb span {
            color: #7b8a9c;
        }
        .main-nav {
            display: flex;
            gap: 1.5rem;
        }
        .main-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            background: var(--secondary-gold);
            bottom: 0;
            left: 0;
            transition: width 0.3s;
        }
        .main-nav a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
        }
        .hero {
            background: linear-gradient(rgba(12, 21, 37, 0.85), rgba(12, 21, 37, 0.9)), url('https://images.unsplash.com/photo-1542751371-adc38448a05e?ixlib=rb-4.0.3&auto=format&fit=crop&w=1350&q=80');
            background-size: cover;
            background-position: center;
            color: var(--text-light);
            padding: 5rem 0;
            text-align: center;
            margin-bottom: 3rem;
            border-radius: var(--border-radius);
        }
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            color: #d1d9e6;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 3rem;
            margin: 3rem 0;
        }
        .main-content {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-self: start;
        }
        h1, h2, h3, h4 {
            color: var(--primary-blue);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 3rem;
            border-bottom: 3px solid var(--secondary-gold);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2.2rem;
            padding-left: 1rem;
            border-left: 5px solid var(--accent-red);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--accent-red);
        }
        h4 {
            font-size: 1.4rem;
            color: #4a6fa5;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .article-intro {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--primary-blue);
            background: #f0f7ff;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            border-left: 4px solid var(--secondary-gold);
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 4px solid var(--secondary-gold);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: var(--border-radius);
        }
        .data-point {
            display: inline-block;
            background: var(--primary-blue);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-weight: bold;
            margin: 0 0.3rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .chart-container {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: var(--border-radius);
            padding: 2rem;
            margin: 2.5rem 0;
            text-align: center;
        }
        .chart-placeholder {
            height: 400px;
            background: linear-gradient(45deg, #e3f2fd 25%, #f3e5f5 25%, #f3e5f5 50%, #e3f2fd 50%, #e3f2fd 75%, #f3e5f5 75%);
            background-size: 40px 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-blue);
            font-weight: bold;
            border-radius: var(--border-radius);
        }
        .article-img {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .article-img:hover {
            transform: scale(1.01);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .interactive-module {
            background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
            color: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
        }
        .module-title {
            color: var(--secondary-gold);
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, select, textarea {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #cbd5e0;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, select:focus, textarea:focus {
            outline: none;
            border-color: var(--secondary-gold);
            box-shadow: 0 0 0 3px rgba(201, 164, 76, 0.2);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, var(--secondary-gold), #d4b662);
            color: var(--primary-blue);
            padding: 0.9rem 2rem;
            border: none;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(to right, #d4b662, var(--secondary-gold));
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(201, 164, 76, 0.3);
            text-decoration: none;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            direction: rtl;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars label:hover,
        .rating-stars label:hover ~ label,
        .rating-stars input:checked ~ label {
            color: #ffc107;
        }
        .site-footer {
            background: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 {
            color: var(--secondary-gold);
            font-size: 1.4rem;
            margin-bottom: 1.5rem;
        }
        friend-link {
            display: block;
            padding: 0.7rem 0;
            border-bottom: 1px solid #2a3a5a;
        }
        friend-link:last-child {
            border-bottom: none;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #2a3a5a;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        .last-updated {
            background: #1a365d;
            color: #cbd5e0;
            padding: 0.8rem;
            border-radius: var(--border-radius);
            text-align: center;
            margin: 2rem 0;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--dark-bg);
                padding: 1rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .hero {
                padding: 3rem 0;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .main-content {
                padding: 1.5rem;
            }
        }