body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 0;
    background: #ffffff;
    color: #111;
    line-height: 1.6;
}

header {
    text-align: center;
    padding: 60px 20px 40px;
    border-bottom: 1px solid #eee;
}

nav {
    text-align: center;
    padding: 15px;
    border-bottom: 1px solid #eee;
}

nav a {
    margin: 0 15px;
    text-decoration: none;
    color: #333;
    font-weight: 500;
}

nav a:hover {
    color: #000;
}

section {
    max-width: 900px;
    margin: 60px auto;
    padding: 0 20px;
}

h2 {
    border-bottom: 2px solid #000;
    padding-bottom: 5px;
    margin-bottom: 20px;
}

.job span {
    font-size: 0.9em;
    color: #666;
}

.project {
    margin-bottom: 30px;
}

footer {
    text-align: center;
    padding: 30px;
    border-top: 1px solid #eee;
    font-size: 0.9em;
    color: #666;
}

@media (max-width: 768px) {
    header {
        padding: 40px 15px;
    }
}