*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:Arial;
}

header{
background:#000;
color:white;
padding:15px 8%;
display:flex;
justify-content:space-between;
align-items:center;
}

.logo{
font-size:22px;
font-weight:bold;
}

nav ul{
list-style:none;
display:flex;
}

nav ul li{
position:relative;
}

nav ul li a{
color:white;
text-decoration:none;
padding:10px 15px;
display:block;
}

nav ul li:hover{
background:#222;
}

.submenu{
display:none;
position:absolute;
background:#111;
top:40px;
left:0;
min-width:160px;
}

nav ul li:hover .submenu{
display:block;
}

.submenu li{
display:block;
}

.hero{
height:70vh;
background:#333;
display:flex;
justify-content:center;
align-items:center;
color:white;
font-size:40px;
}

.container{
padding:80px 10%;
text-align:center;
}

.cards{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:30px;
margin-top:40px;
}

.card{
background:white;
padding:30px;
box-shadow:0 5px 20px rgba(0,0,0,0.1);
border-radius:8px;
}

footer{
background:#111;
color:#ccc;
text-align:center;
padding:30px;
margin-top:50px;
}