*{box-sizing:border-box}
body{
margin:0;
font-family:Inter,Arial,sans-serif;
background:#ffffff;
color:#1f2933;
}

/* NAVBAR */
.nav{
position:fixed;
top:0;
width:100%;
display:flex;
justify-content:space-between;
align-items:center;
padding:18px 8%;
background:rgba(255,255,255,0.85);
backdrop-filter:blur(10px);
border-bottom:1px solid #eee;
z-index:10;
}

.logo{height:140px}

.menu a{
margin-left:30px;
text-decoration:none;
color:#333;
font-weight:500;
}

/* HERO */
.hero{
height:100vh;
background-image:url("https://images.unsplash.com/photo-1560448204-e02f11c3d0e2");
background-size:cover;
background-position:center;
display:flex;
align-items:center;
justify-content:center;
text-align:center;
color:white;
}

.hero-box{
background:rgba(0,0,0,0.5);
padding:60px;
border-radius:18px;
max-width:700px;
}

.hero h1{
font-size:56px;
margin-bottom:20px;
}

.hero p{
font-size:20px;
margin-bottom:30px;
}

/* BUTTON */
.btn{
background:linear-gradient(135deg,#ff6a00,#ff8c3a);
padding:16px 34px;
border:none;
border-radius:12px;
color:white;
font-size:16px;
cursor:pointer;
}

/* SECTION */
.section{
padding:110px 8%;
max-width:1200px;
margin:auto;
}

.section:nth-child(even){
background:#f8fafc;
}

.section h2{
font-size:40px;
margin-bottom:40px;
}

/* FEATURES */
.features{
display:grid;
grid-template-columns:repeat(2,1fr);
gap:30px;
margin-top:40px;
}

.feature{
background:white;
padding:35px;
border-radius:20px;
box-shadow:0 20px 40px rgba(0,0,0,0.08);
transition:0.3s;
}

.feature:hover{
transform:translateY(-8px);
box-shadow:0 30px 60px rgba(0,0,0,0.15);
}

/* SIMULATOR */
.simulator{
background:white;
padding:40px;
border-radius:20px;
box-shadow:0 20px 60px rgba(0,0,0,0.1);
max-width:700px;
margin:0 auto;
}

input,select{
width:100%;
padding:12px;
margin-bottom:14px;
border-radius:8px;
border:1px solid #ddd;
}

.result{
font-size:30px;
color:#0b63ce;
margin-top:10px;
}

/* CTA */
.cta{
background:#0b63ce;
color:white;
padding:110px 8%;
text-align:center;
}

.cta h2{
font-size:44px;
margin-bottom:20px;
}

/* FOOTER */
.footer{
background:#111;
color:#aaa;
text-align:center;
padding:40px;
}

/* WHATSAPP */
.whatsapp{
position:fixed;
bottom:25px;
right:25px;
background:#25D366;
color:white;
padding:16px 24px;
border-radius:40px;
text-decoration:none;
font-weight:600;
}

/* MOBILE */
@media(max-width:900px){
.hero h1{font-size:38px}
.logo{height:100px}
}