body{
font-family: Arial, sans-serif;
margin:0;
background:#f5f6fa;
color:#333;
line-height:1.6;
}

header{
background:#2c3e50;
color:white;
text-align:center;
padding:40px 20px;
}

header h1{
margin:0;
}

nav{
background:#34495e;
text-align:center;
padding:10px;
}

nav a{
color:white;
text-decoration:none;
margin:0 15px;
font-weight:bold;
}

nav a:hover{
text-decoration:underline;
}

main{
max-width:900px;
margin:auto;
padding:30px 20px;
}

section{
margin-bottom:40px;
}

h2{
border-bottom:2px solid #ddd;
padding-bottom:5px;
}

ul{
padding-left:20px;
}

.portfolio-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:20px;
margin-top:20px;
}

.portfolio-item{
background:white;
padding:10px;
border-radius:8px;
box-shadow:0 2px 8px rgba(0,0,0,0.1);
text-align:center;
}

.portfolio-item img{
max-width:100%;
border-radius:5px;
}

footer{
text-align:center;
padding:20px;
background:#eee;
margin-top:40px;
}