body {
  margin: 0;
  font-family: Arial;
  background: #050816;
  color: white;
}

/* NAV */
.nav {
  display: flex;
  justify-content: space-between;
  padding: 20px 40px;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
}

.nav a {
  margin: 0 10px;
  color: white;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 20px;
}

.nav a:hover {
  background: white;
  color: black;
}

/* HERO */
.hero {
  height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;

  background: radial-gradient(circle at top, #1aa7ff33, transparent),
              radial-gradient(circle at bottom, #7b2ff733, transparent);
}

.hero h1 {
  font-size: 50px;
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
  100% { transform: translateY(0); }
}

/* BUTTON */
.btn {
  display: inline-block;
  padding: 12px 25px;
  background: white;
  color: black;
  border-radius: 30px;
  margin: 10px;
  transition: 0.3s;
}

.btn:hover {
  transform: scale(1.1);
}

.outline {
  background: transparent;
  border: 1px solid white;
  color: white;
}

/* SECTIONS */
.section {
  padding: 80px 40px;
  text-align: center;
}

/* CARDS */
.grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.card {
  background: rgba(255,255,255,0.05);
  padding: 20px;
  margin: 15px;
  border-radius: 20px;
  width: 220px;
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-10px);
}