* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f8f9fa;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a { color: #2563eb; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #1d4ed8; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5em; margin-bottom: 1.5em; }
        .site-header {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            color: white;
            padding: 1.5rem 0;
            border-bottom: 4px solid #f59e0b;
            margin-bottom: 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, #f59e0b, #ef4444);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-transform: uppercase;
            letter-spacing: -1px;
        }
        .my-logo:hover { opacity: 0.9; }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #cbd5e1;
            font-weight: 600;
            padding: 0.5rem 0.75rem;
            border-radius: 6px;
        }
        .main-nav a:hover, .main-nav a:focus {
            color: white;
            background-color: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background-color: #e2e8f0;
            padding: 0.75rem 1rem;
            border-radius: 6px;
            margin: 1.5rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #475569; }
        .breadcrumb a:hover { color: #1e293b; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
        }
        h1 {
            font-size: 2.8rem;
            color: #1e293b;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #f59e0b;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #334155;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.6rem;
            color: #475569;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #64748b;
            margin: 1.5rem 0 0.75rem;
        }
        p, .article-section {
            margin-bottom: 1.8rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.25rem;
            font-weight: 500;
            color: #475569;
            background-color: #f1f5f9;
            padding: 1.5rem;
            border-left: 5px solid #3b82f6;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2.5rem;
        }
        .highlight {
            background-color: #fff7ed;
            border: 1px solid #fdba74;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .image-container {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        .image-container img {
            border-radius: 10px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border: 1px solid #e2e8f0;
        }
        .image-caption {
            font-style: italic;
            color: #64748b;
            margin-top: 0.75rem;
            font-size: 0.95rem;
        }
        .internal-link {
            background-color: #f0f9ff;
            padding: 0.2em 0.5em;
            border-radius: 4px;
            font-weight: 600;
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 140px;
        }
        .widget {
            margin-bottom: 2.5rem;
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: #1e293b;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #f59e0b;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.85rem;
            border: 2px solid #cbd5e1;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-btn {
            background-color: #3b82f6;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
        }
        .search-btn:hover { background-color: #2563eb; }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .rating-stars {
            display: flex;
            justify-content: space-between;
            font-size: 1.8rem;
            color: #cbd5e1;
            cursor: pointer;
            margin-bottom: 0.5rem;
        }
        .rating-stars .active { color: #f59e0b; }
        textarea, input[type="text"], input[type="email"] {
            width: 100%;
            padding: 0.85rem;
            border: 2px solid #cbd5e1;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
        }
        .submit-btn {
            background: linear-gradient(90deg, #3b82f6, #1d4ed8);
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s;
        }
        .submit-btn:hover { transform: translateY(-2px); }
        .site-footer {
            background-color: #1e293b;
            color: #cbd5e1;
            padding: 3rem 0 2rem;
            margin-top: 4rem;
            border-top: 4px solid #f59e0b;
            border-radius: 12px 12px 0 0;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.75rem; }
        .footer-links a { color: #94a3b8; }
        .footer-links a:hover { color: white; }
        friend-link {
            display: inline-block;
            background-color: #374151;
            color: #d1d5db;
            padding: 0.5rem 1rem;
            margin: 0.25rem;
            border-radius: 6px;
            font-size: 0.9rem;
        }
        friend-link:hover {
            background-color: #4b5563;
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #374151;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
            .sidebar { position: static; }
        }
        @media (max-width: 768px) {
            .mobile-toggle { display: block; }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: #1e293b;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-top: 1px solid #374151;
            }
            .main-nav.active ul { display: flex; }
            .header-container { flex-wrap: wrap; }
            h1 { font-size: 2.2rem; }
            article, .sidebar { padding: 1.5rem; }
        }