*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:system-ui,Segoe UI,Arial;
}

html{
  scroll-behavior:smooth;
}

body{
  background:#020617;
  color:white;
  overflow-x:hidden;
}

/* Scroll progress bar */
.scroll-bar{
  position:fixed;
  top:0;
  left:0;
  height:3px;
  width:0%;
  background:linear-gradient(90deg,#38bdf8,#a78bfa);
  z-index:1000;
}

/* Navigation */
.nav{
  position:fixed;
  top:0;
  width:100%;
  padding:18px 40px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  backdrop-filter:blur(12px);
  background:rgba(2,6,23,0.6);
  z-index:999;
}

.nav a{
  color:#cbd5f5;
  text-decoration:none;
  margin-left:25px;
  position:relative;
}

.nav a::after{
  content:"";
  position:absolute;
  width:0;
  height:2px;
  left:0;
  bottom:-4px;
  background:#38bdf8;
  transition:0.3s;
}

.nav a:hover::after{
  width:100%;
}

/* Sections */
.section{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:120px 20px;
  position:relative;
}

.dark{
  background:#030712;
}

/* Hero background glow */
.bg-blur{
  position:absolute;
  width:500px;
  height:500px;
  background:radial-gradient(circle,#38bdf8,transparent 60%);
  filter:blur(120px);
  animation:moveGlow 10s infinite alternate;
}

@keyframes moveGlow{
  from{transform:translate(-100px,-50px);}
  to{transform:translate(150px,100px);}
}

/* Floating shapes */
.floating{
  position:absolute;
  width:120px;
  height:120px;
  background:linear-gradient(45deg,#38bdf8,#a78bfa);
  filter:blur(60px);
  opacity:0.5;
  animation:float 8s infinite ease-in-out;
}

.floating.two{
  right:10%;
  bottom:20%;
  animation-delay:2s;
}

@keyframes float{
  0%{transform:translateY(0);}
  50%{transform:translateY(-40px);}
  100%{transform:translateY(0);}
}

/* Content */
.content{
  max-width:800px;
}

h1{
  font-size:56px;
  margin-bottom:15px;
}

h2{
  font-size:40px;
  margin-bottom:10px;
}

p{
  opacity:0.8;
  line-height:1.7;
}

/* Button animation */
.btn{
  display:inline-block;
  margin-top:25px;
  padding:12px 28px;
  border-radius:999px;
  background:linear-gradient(90deg,#38bdf8,#a78bfa);
  text-decoration:none;
  color:black;
  font-weight:600;
  transition:transform .2s, box-shadow .2s;
}

.btn:hover{
  transform:translateY(-3px);
  box-shadow:0 10px 30px rgba(56,189,248,0.4);
}

/* Cards */
.cards{
  margin-top:40px;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:20px;
}

.card{
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.08);
  padding:25px;
  border-radius:16px;
  transition:0.3s;
  backdrop-filter:blur(10px);
}

.card:hover{
  transform:translateY(-8px);
  border-color:#38bdf8;
}

/* Scroll reveal animation */
.reveal{
  opacity:0;
  transform:translateY(40px);
  transition:all 1s ease;
}

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