* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a { color: #2a5db0; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e63946; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5rem; margin: 1rem 0; }
        li { margin-bottom: 0.5rem; }
        h1, h2, h3, h4 { font-weight: 800; color: #1d3557; margin-bottom: 1rem; line-height: 1.2; }
        h1 { font-size: 2.8rem; border-bottom: 4px solid #e63946; padding-bottom: 0.5rem; margin-top: 1.5rem; }
        h2 { font-size: 2.2rem; margin-top: 2.5rem; }
        h3 { font-size: 1.8rem; margin-top: 2rem; }
        h4 { font-size: 1.4rem; margin-top: 1.5rem; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        strong { color: #1d3557; }
        .highlight { background-color: #ffeed6; padding: 0.2rem 0.5rem; border-radius: 3px; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        main.container { flex: 1; }
        header { background-color: #1d3557; color: white; padding: 1rem 0; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            color: #e63946;
            text-decoration: none;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .my-logo i { margin-right: 10px; font-size: 2rem; }
        .my-logo:hover { color: #f1faee; }
        nav { display: flex; align-items: center; }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .nav-links a {
            color: #f1faee;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .nav-links a:hover, .nav-links a.active {
            background-color: #e63946;
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #a8dadc;
        }
        .breadcrumb a { color: #a8dadc; }
        .breadcrumb a:hover { color: white; }
        .search-container {
            background: #457b9d;
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-radius: 0 0 10px 10px;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: none;
            border-radius: 25px 0 0 25px;
            font-size: 1rem;
        }
        .search-btn {
            background: #e63946;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 25px 25px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .search-btn:hover { background: #d62839; }
        .content-card {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 6px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .content-card:hover { transform: translateY(-5px); box-shadow: 0 12px 20px rgba(0,0,0,0.12); }
        .feature-img {
            width: 100%;
            border-radius: 10px;
            margin: 1.5rem 0;
            border: 3px solid #457b9d;
        }
        .quote {
            border-left: 5px solid #e63946;
            padding-left: 1.5rem;
            margin: 1.5rem 0;
            font-style: italic;
            color: #555;
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .comment-form, .rating-form {
            background: #f1faee;
            padding: 1.5rem;
            border-radius: 10px;
        }
        .form-group { margin-bottom: 1rem; }
        .form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
        .form-control {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-size: 1rem;
        }
        .form-control:focus { outline: none; border-color: #457b9d; }
        .submit-btn {
            background: #1d3557;
            color: white;
            padding: 0.8rem 1.5rem;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .submit-btn:hover { background: #14213d; }
        .stars { display: flex; gap: 5px; margin: 0.5rem 0; }
        .star { font-size: 1.5rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .star.active, .star:hover { color: #ffc107; }
        footer {
            background: #1d3557;
            color: #f1faee;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 { color: #a8dadc; border-bottom: 2px solid #457b9d; padding-bottom: 0.5rem; }
        .footer-links { list-style: none; padding-left: 0; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #f1faee; }
        .footer-links a:hover { color: #e63946; }
        friend-link {
            display: inline-block;
            background: #457b9d;
            color: white;
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        friend-link a { color: white; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #457b9d;
            font-size: 0.9rem;
            color: #a8dadc;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .header-top { flex-direction: column; align-items: flex-start; }
            .hamburger { display: block; margin-top: 1rem; }
            .nav-links {
                flex-direction: column;
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            .nav-links.active { display: flex; }
            .interactive-section { grid-template-columns: 1fr; }
        }