/* General Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  color: white;
  line-height: 1.6;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.5);
  position: sticky;
  top: 0;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  z-index: 1000;
}

header .logo {
  font-size: 24px;
  font-weight: bold;
}

nav ul {
  display: flex;
  list-style: none;
}

nav ul li {
  margin-left: 20px;
}

nav ul li a {
  color: white;
  text-decoration: none;
  transition: 0.3s;
}

nav ul li a:hover {
  color: #00c6ff;
}

/* Hero */
.hero {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  perspective: 1000px;
}

.hero-content {
  transform-style: preserve-3d;
  animation: float 5s infinite ease-in-out;
}

.hero h2 {
  font-size: 2.5rem;
}

.hero .highlight {
  color: #00c6ff;
}

/* Sections */
section {
  padding: 60px 20px;
  text-align: center;
}

h2 {
  margin-bottom: 20px;
  font-size: 2rem;
  color: #00c6ff;
}

/* Cards */
.card-container {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.card {
  background: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 15px;
  width: 220px;
  transition: transform 0.5s;
  cursor: pointer;
  font-weight: bold;
}

.card:hover {
  transform: rotateY(15deg) rotateX(10deg) scale(1.05);
}

/* Floating 3D animation */
@keyframes float {
  0% { transform: translateY(0px) rotateX(0deg) rotateY(0deg); }
  50% { transform: translateY(-20px) rotateX(10deg) rotateY(10deg); }
  100% { transform: translateY(0px) rotateX(0deg) rotateY(0deg); }
}

/* Footer */
footer {
  background: rgba(0, 0, 0, 0.5);
  padding: 15px;
  text-align: center;
  margin-top: 40px;
}