:root {
            --primary: #4361ee;
            --secondary: #3a0ca3;
            --accent: #f72585;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', 'Nirmala UI', Arial, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: #fff;
            direction: ltr;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background-color: var(--primary);
            color: white;
            border-radius: var(--radius);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background-color: var(--secondary);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 30px;
            position: relative;
            padding-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background-color: var(--accent);
            border-radius: 2px;
        }
        header {
            background-color: white;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 20px;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
        }
        .logo i {
            margin-right: 10px;
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            gap: 30px;
        }
        .nav-links a {
            font-weight: 600;
            color: var(--dark);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.3s;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--dark);
        }
        .breadcrumb {
            background-color: #f1f5f9;
            padding: 15px 20px;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-box {
            background: linear-gradient(135deg, #4361ee, #3a0ca3);
            padding: 40px 20px;
            text-align: center;
            color: white;
            border-radius: var(--radius);
            margin: 30px 0;
        }
        .search-box h2 {
            margin-bottom: 20px;
            font-size: 1.8rem;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px 20px;
            border: none;
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        .main-content {
            line-height: 1.8;
        }
        .main-content h2 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin: 30px 0 15px;
            padding-bottom: 8px;
            border-bottom: 2px dashed #e9ecef;
        }
        .main-content h3 {
            font-size: 1.4rem;
            color: var(--primary);
            margin: 25px 0 12px;
        }
        .main-content p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .highlight {
            background-color: #fff3cd;
            padding: 20px;
            border-left: 5px solid #ffc107;
            margin: 25px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .image-container img {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 0 auto;
            max-height: 500px;
            object-fit: cover;
        }
        .image-caption {
            margin-top: 10px;
            font-style: italic;
            color: var(--gray);
            font-size: 0.9rem;
        }
        .tip-box {
            background-color: #d1ecf1;
            border-left: 5px solid #0dcaf0;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .tip-box h4 {
            color: #055160;
            margin-bottom: 10px;
        }
        .sidebar {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: var(--radius);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            color: var(--secondary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #dee2e6;
        }
        .quick-links li {
            margin-bottom: 12px;
        }
        .quick-links a {
            color: var(--dark);
            transition: var(--transition);
            display: flex;
            align-items: center;
        }
        .quick-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        .quick-links i {
            margin-right: 10px;
            color: var(--accent);
            font-size: 0.9rem;
        }
        .interaction-section {
            background-color: #f8f9fa;
            padding: 40px;
            border-radius: var(--radius);
            margin: 40px 0;
        }
        .rating-form, .comment-form {
            margin-bottom: 30px;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 15px 0;
            direction: rtl;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star:hover ~ .star {
            color: #ffc107;
        }
        .star.active {
            color: #ffc107;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ced4da;
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .web-links-section {
            background-color: #1e293b;
            padding: 40px 20px;
            color: white;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
        }
        .web-link {
            background-color: #334155;
            padding: 20px;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #475569;
            transform: translateY(-5px);
        }
        .web-link a {
            color: #e2e8f0;
            font-weight: 500;
            display: block;
        }
        .web-link a:hover {
            color: #60a5fa;
        }
        footer {
            background-color: #0f172a;
            color: #cbd5e1;
            padding: 50px 0 20px;
            text-align: center;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 25px;
            margin-bottom: 30px;
        }
        .footer-links a {
            color: #94a3b8;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #60a5fa;
        }
        .copyright {
            padding-top: 20px;
            border-top: 1px solid #334155;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 80%;
                height: calc(100vh - 80px);
                background-color: white;
                flex-direction: column;
                align-items: center;
                padding-top: 40px;
                gap: 25px;
                transition: left 0.5s ease;
                box-shadow: 5px 0 15px rgba(0,0,0,0.1);
            }
            .nav-links.active {
                left: 0;
            }
            .hamburger {
                display: block;
            }
            .search-form {
                flex-direction: column;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .main-content h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .header-container, .breadcrumb {
                padding-left: 15px;
                padding-right: 15px;
            }
            .section {
                padding: 40px 0;
            }
            .btn {
                padding: 10px 20px;
            }
            .interaction-section {
                padding: 25px;
            }
        }