body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
header {
    background: #272727;
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
}
nav ul {
    list-style-type: none;
    padding: 0;
}
nav ul li {
    display: inline;
    margin-left: 20px;
}
.banner {
    text-align: center;
    background: url('banner.jpg') no-repeat center center;
    height: 400px;
    color: white;
    position: relative;
}
.banner h1 {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
}
.cta {
    padding: 10px 20px;
    background: #ff5722;
    border: none;
    color: white;
    cursor: pointer;
}
.featured, #testimonials, #blog {
    padding: 2rem;
}
footer {
    background: #272727;
    color: white;
    text-align: center;
    padding: 1rem;
}