:root {
            --primary: #1e3a8a;
            --secondary: #dc2626;
            --accent: #f59e0b;
            --light: #f8fafc;
            --dark: #0f172a;
            --gray: #64748b;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
            --border-radius: 12px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: var(--light);
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary), #1e40af);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 900;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            letter-spacing: -0.5px;
        }
        .my-logo i {
            color: var(--accent);
        }
        .my-logo span {
            background: linear-gradient(90deg, #fff, var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .breadcrumb {
            padding: 0.75rem 2rem;
            background-color: #e2e8f0;
            font-size: 0.9rem;
            max-width: 1280px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .nav-container {
            display: flex;
            align-items: center;
        }
        .main-nav {
            display: flex;
            gap: 1.75rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
            transition: var(--transition);
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.75rem;
            cursor: pointer;
        }
        .main-container {
            max-width: 1280px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        aside {
            background: white;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 2.75rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary);
            margin: 2.5rem 0 1.25rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--primary);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.2rem;
            color: var(--dark);
            margin: 1.5rem 0 0.75rem;
        }
        p {
            margin-bottom: 1.25rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--gray);
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fef3c7;
            border-left: 4px solid var(--accent);
            padding: 1.25rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .content-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow);
        }
        .interactive-module {
            background: #f1f5f9;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 2.5rem 0;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
        }
        form {
            display: grid;
            gap: 1rem;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.875rem;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            font-family: inherit;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 0.875rem 1.75rem;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            display: inline-block;
            text-align: center;
        }
        button:hover, .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(220, 38, 38, 0.25);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            color: #d1d5db;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star.active, .star:hover {
            color: var(--accent);
        }
        .links-section {
            margin: 2.5rem 0;
        }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .link-card {
            background: white;
            border: 1px solid #e2e8f0;
            border-radius: 10px;
            padding: 1.25rem;
            text-decoration: none;
            color: var(--dark);
            transition: var(--transition);
            display: block;
        }
        .link-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .link-card i {
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-logo {
            font-size: 1.75rem;
            font-weight: 900;
            margin-bottom: 1rem;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 0.5rem 1rem;
            border-radius: 6px;
            margin: 0.25rem 0.5rem 0.25rem 0;
            transition: var(--transition);
        }
        friend-link a {
            color: #cbd5e1;
            text-decoration: none;
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .last-updated {
            background-color: #fef3c7;
            color: #92400e;
            padding: 0.75rem;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin: 1.5rem 0;
        }
        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 0 1rem;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--primary);
                flex-direction: column;
                padding: 1.5rem;
                gap: 1rem;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: var(--transition);
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .hamburger {
                display: block;
            }
            .main-container, .breadcrumb {
                padding: 0 1rem;
            }
            article {
                padding: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.75rem;
            }
        }