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

body{
background:#050814;
color:#e5e7eb;
}

/* HEADER */
header{
position:relative;
width:100%;
display:flex;
justify-content:space-between;
align-items:center;
padding:18px 50px;
background:rgba(10,15,30,0.6);
backdrop-filter: blur(14px);
border-bottom:1px solid rgba(255,255,255,0.06);
z-index:1000;
}

header.hide{
transform: translateY(-100%);
}

.logo img{
height:80px;
filter: brightness(1.1) contrast(1.1);
}

nav{
display:flex;
gap:20px;
}

nav a{
color:#cbd5e1;
text-decoration:none;
font-size:14px;
}

nav a:hover{
color:#38bdf8;
}

/* HERO */
.hero{
height:92vh;
display:flex;
flex-direction:column;
justify-content:center;
align-items:center;
text-align:center;
padding:20px;
background:
linear-gradient(120deg, rgba(2,6,23,0.85), rgba(3,7,18,0.6)),
url('https://media.istockphoto.com/id/589557322/photo/industrial-zone-steel-pipelines-and-equipment.webp?a=1&b=1&s=612x612&w=0&k=20&c=e2W77T431Z51uKzFT41SnX5_Xw3Q4Iv4hhYXpFIBhnY=') center/cover;
}

.hero h1{
font-size:55px;
max-width:900px;
}

.hero p{
margin-top:15px;
color:#94a3b8;
max-width:650px;
}

/* BUTTON */
.btn{
margin-top:20px;
padding:14px 30px;
background:linear-gradient(90deg,#38bdf8,#0ea5e9);
border:none;
border-radius:10px;
color:#000;
font-weight:600;
cursor:pointer;
}

/* SECTIONS */
.section{
padding:80px 40px;
text-align:center;
}

.section h2{
font-size:34px;
color:#38bdf8;
margin-bottom:30px;
}

/* CARDS */
.cards{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:25px;
}

.card{
background:rgba(255,255,255,0.03);
border:1px solid rgba(255,255,255,0.06);
padding:20px;
border-radius:14px;
}

.card img{
width:100%;
height:180px;
object-fit:cover;
border-radius:10px;
margin-bottom:10px;
}

/* FOOTER */
footer{
background:#040712;
padding:40px 20px;
margin-top:50px;
border-top:1px solid rgba(255,255,255,0.06);
}

.footer-container{
display:grid;
grid-template-columns:1fr 1fr 1fr;
gap:30px;
text-align:left;
}

.footer-box:nth-child(2){
text-align:center;
}

.footer-box:nth-child(3){
text-align:right;
}

.footer-box h3{
color:#38bdf8;
margin-bottom:10px;
}

.footer-box a{
display:block;
color:#cbd5e1;
text-decoration:none;
margin:5px 0;
}

.footer-box a:hover{
color:#38bdf8;
}

.copy{
text-align:center;
margin-top:20px;
color:#64748b;
}

/* MOBILE */
@media(max-width:900px){

header{
flex-direction:column;
padding:15px;
}

.cards{
grid-template-columns:1fr;
}

.footer-container{
grid-template-columns:1fr;
text-align:center;
}

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

.btn{
display:inline-block;
text-decoration:none;
text-align:center;
}