body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f5f5f5;
            text-align: center;
        }

        header {
            background-color: #8B0000;
            color: white;
            text-align: center;
            padding: 3em 0 1em;
            position: relative;
        }

        nav {
            display: flex;
            justify-content: center;
            background-color: #8B0000;
            padding: 10px 0;
        }

        nav a {
            color: white;
            text-decoration: none;
            margin: 0 15px;
            padding: 10px 15px;
            transition: background-color 0.3s;
        }

        nav a:hover {
            background-color: #7a0000;
            border-radius: 5px;
        }

        main {
            max-width: 1000px;
            margin: 0 auto;
            padding: 20px;
            box-sizing: border-box;
        }

        section {
            width: 100%;
        }

        .box {
            background-color: white;
            border: 1px solid #ddd;
            border-radius: 5px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            padding: 20px;
            margin-bottom: 20px;
            text-align: center;
            width: 100%;
            box-sizing: border-box;
        }

        .box a {
            text-decoration: none;
            color: #8B0000;
            font-weight: bold;
        }

        footer {
            background-color: #8B0000;
            color: white;
            text-align: center;
            padding: 1em 0;
        }

        .section-hidden {
            display: none;
        }

        .image-box img,
        .box img {
            max-width: 100%;
            height: auto;
            border-radius: 5px;
            margin-bottom: 15px;
        }

        .hamburger {
            display: none;
            cursor: pointer;
            position: absolute;
            top: 10px;
            right: 20px;
            width: 30px;
            height: 30px;
            flex-direction: column;
            justify-content: space-around;
        }

        .hamburger div {
            width: 30px;
            height: 4px;
            background-color: white;
            transition: 0.3s;
        }

        @media (max-width: 768px) {
            nav {
                display: none;
                flex-direction: column;
            }

            nav.active {
                display: flex;
                position: absolute;
                top: 100%;
                width: 100%;
                left: 0;
                background-color: #8B0000;
            }

            .hamburger {
                display: flex;
            }
        }

        @media (min-width: 768px) {
            main {
                padding: 20px 5%;
            }
        }

        @media (min-width: 1024px) {
            main {
                padding: 20px 10%;
            }
        }