body{
font-family: system-ui, -apple-system, Arial;
margin:0;
color:#333;
background:#f4f6f9;
}

header{
background:white;
border-bottom:1px solid #ddd;
}

.nav{
max-width:1200px;
margin:auto;
display:flex;
justify-content:space-between;
align-items:center;
padding:20px;
}

.logo{
font-weight:700;
font-size:20px;
color:#1a4d7a;
}

.menu a{
margin-left:20px;
text-decoration:none;
color:#333;
font-weight:600;
}

.hero{
background-image:url("images/solar-hero.jpg");
background-size:cover;
background-position:center;
color:white;
text-align:center;
padding:120px 20px;
}

.hero h1{
font-size:48px;
margin-bottom:15px;
}

.hero p{
font-size:20px;
max-width:700px;
margin:auto;
}

.button{
display:inline-block;
margin-top:25px;
background:#ffb400;
padding:14px 30px;
border-radius:6px;
text-decoration:none;
font-weight:700;
color:black;
}

.section{
max-width:1100px;
margin:auto;
padding:70px 20px;
}

.section h1,
.section h2{
color:#1a4d7a;
}

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

.card{
background:white;
padding:25px;
border-radius:8px;
box-shadow:0 6px 16px rgba(0,0,0,0.08);
}

.gallery img{
width:100%;
border-radius:8px;
}

form input,
form textarea{
width:100%;
padding:10px;
margin-top:6px;
margin-bottom:20px;
border:1px solid #ccc;
border-radius:4px;
}

form button{
background:#1a4d7a;
color:white;
padding:12px 22px;
border:none;
border-radius:6px;
font-weight:600;
cursor:pointer;
}

footer{
background:#1a4d7a;
color:white;
text-align:center;
padding:40px;
margin-top:60px;
}