body {
            font-family: Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
            background-color: #f4f4f4;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        header {
            background-color: #333;
            color: #fff;
            text-align: center;
            padding: 1rem;
        }
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        nav ul {
            list-style-type: none;
            padding: 0;
        }
        nav ul li {
            display: inline;
            margin-left: 20px;
        }
        nav a {
            color: #fff;
            text-decoration: none;
        }

        .banner {
            width: 100%;
            max-height: 400px;
            object-fit: cover;
        }

        h1 {
            margin-bottom: 0;
        }
        .tagline {
            font-style: italic;
            margin-top: 0.5rem;
        }
        .cta-button {
            display: inline-block;
            background-color: #ff6600;
            color: #fff;
            padding: 10px 20px;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            margin-top: 20px;
        }
        .cta-button:hover {
            background-color: #e65c00;
        }
.app-store-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
}

.app-store-button img {
    height: 40px;
}

s
        .feature {
            background-color: #fff;
            border-radius: 5px;
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        .testimonial {
            font-style: italic;
            border-left: 3px solid #ff6600;
            padding-left: 20px;
            margin: 20px 0;
        }

       .sidebar {
            width: 250px;
            padding: 20px;
            background-color: #f0f0f0;
        }
        .sidebar ul {
            list-style-type: none;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 10px;
        }

        .return-top {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background-color: #333;
            color: white;
            padding: 10px;
            text-decoration: none;
            border-radius: 5px;
        }

@media screen and (min-width: 768px) {
    nav {
        flex-direction: row;
        justify-content: space-between;
    }
    nav ul {
        justify-content: flex-end;
    }
    h1, .tagline {
        text-align: left;
    }
}