* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  background: #070b14;
  color: #ffffff;
}

.hero {
  min-height: 100vh;
  padding: 32px 8%;
  background:
    radial-gradient(circle at top right, rgba(0, 174, 255, 0.25), transparent 35%),
    linear-gradient(135deg, #070b14 0%, #101b33 100%);
}

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

nav h1 {
  font-size: 28px;
  letter-spacing: 1px;
}

nav a {
  color: #ffffff;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 10px 18px;
  border-radius: 999px;
}

.hero-content {
  max-width: 760px;
  margin-top: 120px;
}

.tag {
  display: inline-block;
  color: #00d9ff;
  background: rgba(0, 217, 255, 0.12);
  border: 1px solid rgba(0, 217, 255, 0.35);
  padding: 8px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero-content h2 {
  font-size: 56px;
  line-height: 1.05;
  margin-bottom: 24px;
}

.hero-content p {
  font-size: 18px;
  line-height: 1.7;
  color: #c9d4e5;
  max-width: 650px;
}

.buttons {
  margin-top: 32px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  text-decoration: none;
  padding: 14px 22px;
  border-radius: 10px;
  font-weight: bold;
}

.primary {
  background: #00d9ff;
  color: #07111f;
}

.secondary {
  border: 1px solid rgba(255,255,255,0.3);
  color: #ffffff;
}

.section {
  padding: 90px 8%;
}

.section h2 {
  font-size: 36px;
  margin-bottom: 32px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.card {
  background: #0f1729;
  border: 1px solid rgba(255,255,255,0.08);
  padding: 28px;
  border-radius: 18px;
}

.card h3 {
  color: #00d9ff;
  margin-bottom: 14px;
}

.card p {
  color: #c9d4e5;
  line-height: 1.6;
}

.contact {
  text-align: center;
  background: #0b1220;
}

.contact p {
  color: #c9d4e5;
  margin-bottom: 24px;
}

footer {
  padding: 28px 8%;
  text-align: center;
  color: #8d9bb0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

@media (max-width: 900px) {
  .hero-content h2 {
    font-size: 38px;
  }

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

  nav {
    align-items: flex-start;
    gap: 16px;
  }
}