* {
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f9f9f9;
    margin: 0;
    padding: 0;
}

header {
    background-color: #ffffff;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

header h1 {
    margin: 0;
}

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

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    text-decoration: none;
    color: #007bff;
}

.container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
}

section {
    margin-bottom: 40px;
}

.project {
    margin-bottom: 20px;
}

.project img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

footer {
   text-align: center; 
   margin-top: 40px; 
   font-size: 0.9em; 
   color: #666; 
}