*{
box-sizing:border-box;
margin:0;
padding:0;
font-family:Arial, Helvetica, sans-serif;
}

body{
background:#f4f4f4;
color:#333;
}

header{
background:#222;
color:white;
padding:15px;
display:flex;
align-items:center;
justify-content:space-between;
flex-wrap:wrap;
}

header h1{
font-size:20px;
}

nav{
display:flex;
gap:15px;
}

nav a{
color:white;
text-decoration:none;
padding:8px 10px;
}

nav a:hover{
background:#444;
border-radius:4px;
}

.menu-toggle{
display:none;
background:none;
border:none;
font-size:24px;
color:white;
}

main{
max-width:1000px;
margin:auto;
padding:20px;
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:20px;
}

.card{
background:white;
padding:20px;
border-radius:8px;
box-shadow:0 2px 5px rgba(0,0,0,.1);
}

.card h2{
margin-bottom:10px;
}

.card ul{
list-style:none;
}

.card li{
margin-bottom:8px;
}

.card a{
text-decoration:none;
color:#0066cc;
}

.card a:hover{
text-decoration:underline;
}

footer{
text-align:center;
padding:20px;
background:#222;
color:white;
margin-top:20px;
}

@media (max-width:700px){

nav{
display:none;
flex-direction:column;
width:100%;
}

nav.show{
display:flex;
}

.menu-toggle{
display:block;
}

}