body, html {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f4;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.site-header {
    background-color: #007ACC;
    color: white;
    padding: 10px 0;
    text-align: center;
}

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

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

.site-header nav ul li {
    display: inline-block;
    margin: 0 10px;
}

.site-header nav ul li a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.site-header nav ul li a:hover {
    color: #FFD700;
}

.hero {
    background: url('background.jpg') no-repeat center center/cover;
    color: #fff;
    text-align: center;
    padding: 50px 20px;
}

.hero .profile-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 4px solid #fff;
}

.hero-text h2 {
    margin-top: 20px;
    font-size: 2.5em;
}

.main {
    background: #7e7979;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 20px;
}

.main section {
    margin-bottom: 20px;
}

footer.site-footer {
    background-color: #007ACC;
    color: white;
    text-align: center;
    padding: 10px 0;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
    }

    .hero {
        padding: 30px 10px;
    }

    .hero .profile-photo {
        width: 100px;
        height: 100px;
    }

    .hero-text h2 {
        font-size: 1.5em;
    }
}