:root{
--bg:#08111f;
--card:#111827;
--primary:#00e5ff;
--secondary:#7c3aed;
--accent:#00ff88;
}

*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:'Poppins',sans-serif;
scroll-behavior:smooth;
}

body{
background:var(--bg);
color:white;
overflow-x:hidden;
}

body.light{
background:#f5f5f5;
color:#111;
}

.navbar{
position:fixed;
top:0;
width:100%;
padding:20px 8%;
display:flex;
justify-content:space-between;
align-items:center;
background:rgba(255,255,255,.05);
backdrop-filter:blur(20px);
z-index:999;
}

.logo{
font-size:30px;
font-weight:800;
color:#00e5ff;
}

.nav-links{
display:flex;
list-style:none;
gap:25px;
}

.nav-links a{
color:white;
text-decoration:none;
font-weight:600;
}

.hero{
height:100vh;
display:flex;
justify-content:center;
align-items:center;
text-align:center;

background:
linear-gradient(rgba(0,0,0,.65),rgba(0,0,0,.65)),
url("https://images.unsplash.com/photo-1488521787991-ed7bbaae773c?auto=format&fit=crop&w=1600&q=80");

background-size:cover;
background-position:center;
background-attachment:fixed;
}

.hero h1{
font-size:70px;
font-weight:800;
margin-bottom:20px;
}

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

.btn{
padding:15px 35px;
text-decoration:none;
border-radius:50px;
color:white;
background:linear-gradient(45deg,#00e5ff,#7c3aed,#00ff88);
}

section{
padding:100px 8%;
}

.section-title{
text-align:center;
font-size:40px;
margin-bottom:40px;
}

.grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:25px;
}

.card{
padding:30px;
border-radius:20px;
background:rgba(255,255,255,.05);
backdrop-filter:blur(15px);
transition:.4s;
}

.card:hover{
transform:translateY(-10px);
box-shadow:0 0 25px cyan;
}

.stats{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
gap:20px;
}

.stat{
padding:30px;
text-align:center;
border-radius:20px;
background:linear-gradient(135deg,#00e5ff,#7c3aed);
}

form{
max-width:600px;
margin:auto;
display:flex;
flex-direction:column;
gap:15px;
}

input,
textarea{
padding:15px;
border:none;
border-radius:12px;
}

button{
padding:15px;
border:none;
border-radius:12px;
cursor:pointer;
background:#00ff88;
font-weight:600;
}

.testimonial{
display:none;
text-align:center;
font-size:24px;
}

.testimonial.active{
display:block;
}

footer{
background:#020817;
text-align:center;
padding:30px;
}

#topBtn{
position:fixed;
right:20px;
bottom:20px;
width:60px;
height:60px;
border-radius:50%;
background:cyan;
display:none;
cursor:pointer;
}

#loader{
position:fixed;
inset:0;
background:#08111f;
display:flex;
justify-content:center;
align-items:center;
z-index:1000;
}

.loader{
width:70px;
height:70px;
border:5px solid white;
border-top:5px solid cyan;
border-radius:50%;
animation:spin 1s linear infinite;
}

@keyframes spin{
100%{
transform:rotate(360deg);
}
}

.reveal{
opacity:0;
transform:translateY(100px);
transition:1s;
}

.reveal.active{
opacity:1;
transform:translateY(0);
}