body{
font-family:Arial, Helvetica, sans-serif;
margin:0;
background:#f4f6f9;
color:#333;
}

/* HEADER */

.header{
display:flex;
justify-content:space-between;
align-items:center;
padding:15px 40px;
background:#0b2c48;
}

.logo{
height:60px;
}

.nav{
display:flex;
gap:25px;
}

.nav a{
color:white;
text-decoration:none;
font-weight:500;
}

.nav a:hover{
color:#ff7a00;
}

.nav-btn{
background:#ff7a00;
padding:8px 14px;
border-radius:4px;
}

/* HERO */

.hero{
height:500px;
background:url("images/geotechnical-drilling-rig.jpg") center/cover no-repeat;
position:relative;
}

.hero-overlay{
background:rgba(0,0,0,0.55);
height:100%;
display:flex;
align-items:center;
justify-content:center;
}

.hero-content{
text-align:center;
color:white;
max-width:700px;
padding:20px;
}

.hero-content h1{
font-size:40px;
margin-bottom:10px;
}

.hero-content p{
font-size:18px;
margin-bottom:25px;
}

.cta-btn{
background:#ff7a00;
color:white;
padding:12px 24px;
border-radius:5px;
text-decoration:none;
font-weight:bold;
}

/* SERVICES */

.services{
padding:80px 10%;
background:white;
text-align:center;
}

.section-title{
margin-bottom:40px;
color:#0b2c48;
}

.service-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
gap:30px;
}

/* CARD */

.service-card{
background:white;
border-radius:8px;
overflow:hidden;
box-shadow:0 4px 15px rgba(0,0,0,0.1);
text-decoration:none;
color:#333;
transition:0.3s;
display:block;
}

.service-card img{
width:100%;
height:200px;
object-fit:cover;
}

.card-content{
padding:20px;
}

.card-content h3{
color:#0b2c48;
margin-bottom:10px;
}

.card-content p{
font-size:14px;
line-height:1.5;
}

.service-card:hover{
transform:translateY(-6px);
box-shadow:0 10px 25px rgba(0,0,0,0.2);
}

/* FOOTER */

.footer{
background:#0b2c48;
color:white;
text-align:center;
padding:25px;
}

/* RESPONSIVE */

@media (max-width:768px){

.header{
flex-direction:column;
}

.nav{
margin-top:10px;
flex-wrap:wrap;
justify-content:center;
}

.hero-content h1{
font-size:26px;
}

}