* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', sans-serif;
            line-height: 1.7; 
        }
        body {
            background-color: #f0f8ff;
            color: #1a202c;
            padding-bottom: 80px;
            letter-spacing: 0.2px; 
        }
        header {
            background: linear-gradient(135deg, #0077b6, #00b4d8, #90e0ef);
            color: white;
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0,0,0,0.25);
        }
        .container {
            width: 90%;
            max-width: 1320px;
            margin: 0 auto;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: #ffd60a;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 3px 3px 6px rgba(0,0,0,0.4);
        }
        .logo span {
            color: #ffffff;
            font-style: italic;
            font-weight: 700;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .main-nav {
            display: flex;
            gap: 30px;
            align-items: center;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            padding: 8px 12px;
            border-radius: 6px;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background-color: #ffd60a;
            transition: width 0.3s ease;
        }
        .main-nav a:hover {
            color: #ffd60a;
            background-color: rgba(255,255,255,0.1);
            transform: translateY(-2px);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .btn {
            padding: 12px 28px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 800;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
            font-size: 1.05rem;
            box-shadow: 0 6px 12px rgba(0,0,0,0.2);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .btn-download {
            background-color: #38b000;
            color: white;
            margin-right: 15px;
        }
        .btn-login {
            background-color: #0077b6;
            color: white;
        }
        .btn:hover {
            opacity: 0.95;
            transform: translateY(-4px);
            box-shadow: 0 8px 16px rgba(0,0,0,0.25);
        }
        .btn:active {
            transform: translateY(1px);
        }
        .hamburger {
            display: none;
            font-size: 2.2rem;
            cursor: pointer;
            color: #ffd60a;
            padding: 8px 12px;
            z-index: 1001;
        }
        .hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://host.com/images/tuk-tuk-ocean-explorer-hero.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: white;
            padding: 120px 0;
            text-align: center;
            margin-bottom: 60px;
            border-bottom: 6px solid #ffd60a;
        }
        .hero h1 {
            font-size: 3.8rem;
            margin-bottom: 30px;
            color: #ffd60a;
            text-shadow: 4px 4px 8px rgba(0,0,0,0.6);
            line-height: 1.2;
            letter-spacing: 1px;
        }
        .hero p {
            font-size: 1.4rem;
            max-width: 900px;
            margin: 0 auto 40px;
            color: #f8fafc;
            line-height: 1.8;
        }
        .content-section {
            background-color: white;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.1);
            margin-bottom: 50px;
            border-left: 6px solid #ffd60a;
        }
        h1 {
            font-size: 2.6rem;
            color: #023e8a;
            margin-bottom: 30px;
            border-bottom: 4px solid #ffd60a;
            padding-bottom: 15px;
            font-weight: 900;
        }
        h2 {
            font-size: 2.2rem;
            color: #0077b6;
            margin: 40px 0 25px;
            font-weight: 800;
            padding-left: 15px;
            border-left: 5px solid #0077b6;
        }
        h3 {
            font-size: 1.7rem;
            color: #0096c7;
            margin: 30px 0 20px;
            font-weight: 800;
        }
        h4 {
            font-size: 1.4rem;
            color: #38b000;
            margin: 25px 0 15px;
            font-weight: 700;
        }
        p {
            margin-bottom: 25px;
            font-size: 1.15rem;
            text-align: justify;
            color: #2d3748;
            line-height: 1.9;
        }
        ul, ol {
            margin: 25px 0 25px 45px;
        }
        li {
            margin-bottom: 15px;
            font-size: 1.1rem;
            color: #2d3748;
        }
        .highlight {
            background-color: #fff8e6;
            padding: 25px;
            border-left: 6px solid #ff9e00;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        }
        .highlight strong {
            color: #c05500;
            font-size: 1.2rem;
        }
        .emoji {
            font-size: 1.5rem;
            margin: 0 10px;
        }
        .separator {
            border: none;
            border-top: 3px dashed #e0f7fa;
            margin: 50px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 40px 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #e0f7fa, #b2ebf2);
            padding: 30px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border-top: 5px solid #0077b6;
            transition: transform 0.4s ease, box-shadow 0.4s ease;
        }
        .stat-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.15);
        }
        .stat-card h4 {
            color: #023e8a;
            font-size: 1.4rem;
            margin-bottom: 20px;
            font-weight: 800;
        }
        .stat-card .value {
            font-size: 3rem;
            font-weight: 900;
            color: #0077b6;
            margin: 15px 0;
        }
        .stat-card .unit {
            font-size: 1.1rem;
            color: #4a5568;
            font-weight: 600;
        }
        .game-categories {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 40px 0;
        }
        .game-categories a {
            background-color: #0077b6;
            color: white;
            padding: 10px 24px;
            border-radius: 30px;
            text-decoration: none;
            font-size: 1.05rem;
            font-weight: 700;
            transition: all 0.3s ease;
        }
        .game-categories a:hover {
            background-color: #023e8a;
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.15);
        }
        .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin: 40px 0;
        }
        .tags a {
            background-color: #4a5568;
            color: white;
            padding: 8px 22px;
            border-radius: 25px;
            text-decoration: none;
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .tags a:hover {
            background-color: #2d3748;
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.15);
        }
        .recommendation {
            background: linear-gradient(145deg, #e8f4f8, #f0f8ff);
            padding: 30px;
            border-radius: 12px;
            margin: 40px 0;
            border: 2px solid #b2ebf2;
            box-shadow: 0 6px 15px rgba(0,0,0,0.08);
        }
        .recommendation h3 {
            color: #023e8a;
            margin-top: 0;
            font-size: 1.8rem;
        }
        footer {
            background: linear-gradient(135deg, #023e8a, #03045e);
            color: white;
            padding: 50px 0 30px;
            margin-top: 80px;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 50px;
            margin-bottom: 40px;
        }
        .footer-section {
            flex: 1;
            min-width: 300px;
        }
        .footer-section h4 {
            font-size: 1.6rem;
            margin-bottom: 25px;
            color: #ffd60a;
            padding-bottom: 10px;
            border-bottom: 3px solid #ffd60a;
            display: inline-block;
        }
        .footer-section p {
            color: #e2e8f0;
            font-size: 1.1rem;
            margin-bottom: 20px;
        }
        .footer-section a {
            color: #cbd5e1;
            text-decoration: none;
            display: block;
            margin-bottom: 15px;
            transition: all 0.3s ease;
            font-size: 1.1rem;
        }
        .footer-section a:hover {
            color: #ffd60a;
            padding-left: 8px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 2px solid #1a365d;
            font-size: 1.1rem;
            color: #94a3b8;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: linear-gradient(135deg, #023e8a, #0077b6);
                padding: 30px;
                gap: 25px;
                box-shadow: 0 8px 25px rgba(0,0,0,0.3);
            }
            .main-nav.active {
                display: flex;
            }
            .hero h1 {
                font-size: 2.6rem;
            }
            .hero p {
                font-size: 1.2rem;
                padding: 0 20px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.9rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .content-section {
                padding: 25px;
            }
            .hero {
                padding: 80px 0;
                background-attachment: scroll;
            }
            .btn {
                display: block;
                width: 90%;
                margin: 15px auto;
                text-align: center;
            }
            .btn-download {
                margin-right: auto;
            }
        }
        img {
            max-width: 100%;
            height: auto;
            loading: lazy;
            border-radius: 10px;
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        img:hover {
            opacity: 0.98;
            transform: scale(1.02);
        }
        .content-section > * {
            margin-top: 15px;
            margin-bottom: 15px;
        }
        .content-section > h2 {
            margin-top: 40px;
            margin-bottom: 20px;
        }
        .content-section > h3 {
            margin-top: 30px;
            margin-bottom: 15px;
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                transition: none !important;
            }
        }
        @media print {
            header, footer, .btn, .hamburger {
                display: none;
            }
            .content-section {
                box-shadow: none;
                border: none;
                padding: 0;
            }
            body {
                background: white;
            }
            a {
                color: black;
                text-decoration: underline;
            }
            .highlight {
                background-color: #fff;
                border: 1px solid #ddd;
            }
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: #e0f7fa;
        }
        ::-webkit-scrollbar-thumb {
            background: #0077b6;
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #023e8a;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: #0077b6;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 999;
        }
        .back-to-top:hover {
            background-color: #023e8a;
            transform: translateY(-5px);
        }