:root{
--primary:#1f4fd8;
--bg:#f6f8fb;
--card:#ffffff;
--text:#333;
--border:#e6e8ee;
}

body{
background:var(--bg);
color:var(--text);
font-family:Inter,Arial,Helvetica,sans-serif;
line-height:1.6;
}

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

header, .header{
background:#ffffff;
border-bottom:1px solid var(--border);
}

.card, .box{
background:var(--card);
border:1px solid var(--border);
border-radius:10px;
padding:25px;
margin-bottom:20px;
box-shadow:0 4px 10px rgba(0,0,0,0.03);
}

h1,h2,h3{
color:#1b1f2a;
margin-bottom:15px;
}

.hero{
padding:60px 0;
}

.section{
padding:50px 0;
}

.grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
gap:20px;
}

.btn{
background:var(--primary);
color:#fff;
padding:12px 20px;
border-radius:6px;
display:inline-block;
text-decoration:none;
}

footer{
background:#fff;
border-top:1px solid var(--border);
padding:30px 0;
margin-top:40px;
font-size:14px;
}