body{
font-family:'Inter',sans-serif;
margin:0;
background:#f8fafc;
color:#1e293b;
}

.container{
max-width:1200px;
margin:auto;
padding:20px;
}

header{
background:white;
box-shadow:0 2px 10px rgba(0,0,0,0.05);
position:sticky;
top:0;
}

.nav{
display:flex;
align-items:center;
justify-content:space-between;
}

.logo{
font-size:22px;
font-weight:700;
color:#2563eb;
}

nav a{
margin:0 15px;
text-decoration:none;
color:#334155;
}

.menu-toggle{
display:none;
cursor:pointer;
}

.hero{
height:90vh;
display:flex;
align-items:center;
justify-content:center;
background:linear-gradient(135deg,#2563eb,#1e40af);
color:white;
text-align:center;
padding:20px;
}

.hero h1{
font-size:52px;
}

.hero p{
max-width:650px;
margin:auto;
margin-top:20px;
}

.hero-buttons{
margin-top:30px;
}

.btn-primary{
background:#22c55e;
padding:14px 25px;
color:white;
text-decoration:none;
border-radius:6px;
margin-right:10px;
}

.btn-secondary{
border:2px solid white;
padding:14px 25px;
color:white;
text-decoration:none;
border-radius:6px;
}

.section{
padding:80px 20px;
text-align:center;
}

.section h2{
margin-bottom:50px;
font-size:36px;
}

.grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:30px;
max-width:1100px;
margin:auto;
}

.card{
background:white;
padding:30px;
border-radius:10px;
box-shadow:0 10px 25px rgba(0,0,0,0.05);
}

.dark{
background:#1e293b;
color:white;
}

.screens{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
gap:30px;
max-width:1100px;
margin:auto;
}

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

.contact{
padding:80px 20px;
text-align:center;
}

form{
max-width:500px;
margin:auto;
display:flex;
flex-direction:column;
gap:15px;
}

input,textarea{
padding:14px;
border-radius:6px;
border:1px solid #cbd5e1;
}

button{
background:#2563eb;
color:white;
padding:14px;
border:none;
border-radius:6px;
cursor:pointer;
}

.whatsapp{
position:fixed;
bottom:20px;
right:20px;
background:#25D366;
color:white;
font-size:24px;
padding:15px;
border-radius:50%;
text-decoration:none;
}

footer{
background:#0f172a;
color:white;
text-align:center;
padding:30px;
}