* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
        }
        :root {
            --primary-color: #FF9933; 
            --secondary-color: #138808; 
            --tertiary-color: #000080; 
            --text-color: #333333;
            --bg-color: #f8f9fa;
            --white: #ffffff;
            --shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        body {
            background-color: var(--bg-color);
            color: var(--text-color);
            padding-bottom: 40px;
        }
        header {
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            padding: 15px 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--white);
            text-decoration: none;
            display: inline-block;
            letter-spacing: 1px;
        }
        .logo span {
            color: var(--tertiary-color);
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 25px;
            margin-top: 15px;
        }
        .nav-links li a {
            color: var(--white);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        .nav-links li a:hover {
            color: var(--tertiary-color);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }
        .hamburger div {
            width: 30px;
            height: 3px;
            background-color: var(--white);
            border-radius: 3px;
        }
        .btn {
            display: inline-block;
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            font-weight: bold;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
            margin: 10px 5px;
        }
        .btn-download {
            background-color: var(--secondary-color);
            color: var(--white);
        }
        .btn-login {
            background-color: var(--tertiary-color);
            color: var(--white);
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        main {
            padding: 30px 0;
        }
        h1 {
            font-size: 2.5rem;
            color: var(--tertiary-color);
            margin-bottom: 20px;
            border-bottom: 3px solid var(--primary-color);
            padding-bottom: 10px;
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-color);
            margin: 30px 0 15px;
        }
        h3 {
            font-size: 1.5rem;
            color: var(--tertiary-color);
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 15px;
            text-align: justify;
            font-size: 1.05rem;
        }
        strong {
            color: var(--tertiary-color);
        }
        .highlight {
            background-color: rgba(255, 153, 51, 0.1);
            padding: 2px 5px;
            border-left: 4px solid var(--primary-color);
        }
        .feature-card {
            background: var(--white);
            border-radius: 8px;
            padding: 20px;
            margin: 20px 0;
            box-shadow: var(--shadow);
        }
        ul {
            margin: 15px 0 15px 30px;
        }
        li {
            margin-bottom: 10px;
        }
        footer {
            background-color: var(--tertiary-color);
            color: var(--white);
            padding: 30px 0;
            margin-top: 40px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin: 20px 0;
        }
        .footer-links a {
            color: var(--white);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: var(--primary-color);
        }
        .copyright {
            margin-top: 20px;
            font-size: 0.9rem;
            text-align: center;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
                position: absolute;
                top: 20px;
                right: 20px;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                gap: 15px;
                padding: 20px 0;
                background-color: var(--tertiary-color);
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                box-shadow: var(--shadow);
                padding-left: 20px;
            }
            .nav-links.active {
                display: flex;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            p {
                font-size: 1rem;
            }
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 20px 0;
            box-shadow: var(--shadow);
        }