body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #020c1b;
  color: #00f0ff;
  overflow-x: hidden;
  position: relative;
}
#particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: -1;
  top: 0;
  left: 0;
  pointer-events: none;
}
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 30px;
  background: rgba(0, 240, 255, 0.03);
  border-bottom: 1px solid #00f0ff33;
}
.top-bar .logo {
  height: 50px;
}
.top-bar nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #00f0ff;
  font-weight: bold;
}
.hero {
  text-align: center;
  padding: 100px 20px;
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: 48px;
  margin-bottom: 10px;
}
.hero p {
  font-size: 18px;
  margin-bottom: 20px;
}
.cta {
  background: #00f0ff;
  color: black;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
}
.products {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 40px 20px;
}
.product {
  border: 1px solid #00f0ff88;
  border-radius: 10px;
  padding: 20px;
  margin: 10px;
  width: 250px;
  text-align: center;
  background: rgba(0, 240, 255, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
}
.product:hover {
  transform: scale(1.05);
  box-shadow: 0 0 20px #00f0ff55;
}