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

body{
line-height:1.6;
}

header{
position:fixed;
width:100%;
background:#111;
z-index:1000;
}

.navbar{
display:flex;
justify-content:space-between;
align-items:center;
padding:15px 10%;
}

.logo{
color:white;
}

.nav-links{
list-style:none;
display:flex;
}

.nav-links li{
margin-left:20px;
}

.nav-links a{
color:white;
text-decoration:none;
font-size:15px;
}

.hero{
height:100vh;
background:linear-gradient(rgba(0,0,0,0.6),rgba(0,0,0,0.6)),
url('https://images.unsplash.com/photo-1518770660439-4636190af475');
background-size:cover;
background-position:center;
display:flex;
align-items:center;
justify-content:center;
text-align:center;
color:white;
}

.hero h1{
font-size:50px;
margin-bottom:10px;
}

.btn{
display:inline-block;
margin-top:20px;
padding:12px 25px;
background:#007BFF;
color:white;
text-decoration:none;
border-radius:5px;
}

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

.section h2{
margin-bottom:20px;
font-size:30px;
}

.grey{
background:#f5f5f5;
}

.services{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
gap:20px;
margin-top:40px;
}

.card{
background:white;
padding:25px;
border-radius:10px;
box-shadow:0 5px 15px rgba(0,0,0,0.1);
}

.portfolio{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
gap:20px;
margin-top:30px;
}

.project{
background:#007BFF;
color:white;
padding:40px;
border-radius:10px;
}

.contact-form{
max-width:500px;
margin:auto;
display:flex;
flex-direction:column;
gap:15px;
}

.contact-form input,
.contact-form textarea{
padding:12px;
border:1px solid #ddd;
border-radius:5px;
}

.contact-form button{
padding:12px;
border:none;
background:#007BFF;
color:white;
border-radius:5px;
cursor:pointer;
}

footer{
text-align:center;
padding:20px;
background:#111;
color:white;
}

@media(max-width:768px){

.hero h1{
font-size:32px;
}

.nav-links{
display:none;
}

}