style.css

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: #333;
    color: #fff;
    padding: 10px 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav h1 {
    font-size: 24px;
}

nav ul {
    list-style: none;
}

nav ul li {
    display: inline;
    margin-right: 20px;
}

nav a {
    text-decoration: none;
    color: #fff;
}

.section {
    margin: 40px 0;
}

h2 {
    font-size: 28px;
    margin-bottom: 20px;
}

.service {
    margin-bottom: 20px;
}

.service h3 {
    font-size: 20px;
}

.service p {
    font-size: 16px;
}

.portfolio-item {
    margin-bottom: 20px;
}

.portfolio-item img {
    max-width: 100%;
}

.portfolio-item h3 {
    font-size: 20px;
}

.portfolio-item p {
    font-size: 16px;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
}