body{
margin:0;
font-family:Arial,sans-serif;
background:#f5f5f5;
color:#222;
}

.container{
width:min(1200px,92%);
margin:auto;
}

.manual-header{
background:#111;
color:white;
padding:24px 0;
}

.hero-section{
padding:80px 0;
background:white;
}

.hero-section h2{
font-size:52px;
}

.manual-section{
padding:70px 0;
}

.alt-bg{
background:#e8e8e8;
}

.manual-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
gap:24px;
}

.manual-card{
background:white;
padding:24px;
border-radius:14px;
}

.manual-footer{
background:#111;
color:white;
text-align:center;
padding:40px 0;
}