:root{
--bg:#f6f8fb;
--card:#ffffff;
--primary:#2563eb;
--text:#1f2937;
--muted:#6b7280;
--border:#e5e7eb;
}

body{
margin:0;
font-family:Arial, Helvetica, sans-serif;
background:var(--bg);
color:var(--text);
line-height:1.6;
}

.container{
max-width:1000px;
margin:auto;
padding:30px 20px;
}

header{
text-align:center;
margin-bottom:50px;
}

.logo{
font-size:32px;
font-weight:700;
color:var(--primary);
}

.tag{
margin-top:8px;
font-size:16px;
color:var(--muted);
}

.hero{
background:var(--card);
padding:40px;
border-radius:14px;
border:1px solid var(--border);
text-align:center;
margin-bottom:40px;
}

.hero h1{
font-size:34px;
margin-bottom:15px;
}

.hero p{
font-size:17px;
color:var(--muted);
max-width:700px;
margin:auto;
}

.install-btn{
display:inline-block;
margin-top:25px;
padding:14px 26px;
background:var(--primary);
color:white;
text-decoration:none;
border-radius:8px;
font-weight:600;
font-size:16px;
}

.install-btn:hover{
opacity:0.9;
}

.section{
margin-top:50px;
}

.section h2{
text-align:center;
margin-bottom:25px;
font-size:26px;
}

.features{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:20px;
}

.card{
background:var(--card);
padding:25px;
border-radius:10px;
border:1px solid var(--border);
}

.card h3{
margin-top:0;
font-size:18px;
}

.card p{
color:var(--muted);
font-size:15px;
}

.portals{
display:flex;
flex-wrap:wrap;
justify-content:center;
gap:12px;
margin-top:20px;
}

.portal{
background:var(--card);
border:1px solid var(--border);
padding:10px 16px;
border-radius:8px;
font-weight:600;
}

.security{
background:var(--card);
padding:35px;
border-radius:12px;
border:1px solid var(--border);
margin-top:40px;
text-align:center;
}

footer{
margin-top:60px;
text-align:center;
font-size:14px;
color:var(--muted);
}

footer a{
color:var(--primary);
text-decoration:none;
margin:0 10px;
}

footer a:hover{
text-decoration:underline;
}