body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0b0f1a;
  color: #fff;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

.bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top, #1b2a4a, transparent);
  z-index: -1;
}

header {
  padding: 20px 0;
  border-bottom: 1px solid #222;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: bold;
  font-size: 22px;
}

.logo span {
  color: #4ea1ff;
}

nav a {
  margin-left: 20px;
  color: #aaa;
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 80px 0;
}

.hero h1 {
  font-size: 42px;
}

.hero p {
  color: #bbb;
}

button {
  margin-top: 20px;
  padding: 12px 20px;
  border: none;
  background: #4ea1ff;
  color: #fff;
  cursor: pointer;
  border-radius: 8px;
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.card {
  background: #121a2a;
  padding: 20px;
  border-radius: 12px;
}

.section {
  padding: 60px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.box {
  background: #121a2a;
  padding: 20px;
  border-radius: 12px;
}

footer {
  text-align: center;
  padding: 30px;
  border-top: 1px solid #222;
  color: #777;
}

@media (max-width: 800px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}

.card, .box {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover, .box:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}