body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

header {
    background: #333;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 36px;
}

header nav ul {
    list-style: none;
    padding: 0;
}

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

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

section {
    padding: 50px 0;
    text-align: center;
}

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

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #0779e4;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.btn:hover {
    background: #055ca3;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}

footer p {
    margin: 0;
}