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

body {
  font-family: 'Open Sans', sans-serif;
  background: radial-gradient(circle at top left, #001f29, #000);
  color: #00f7ff;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 3rem;
  background-color: #050505;
  box-shadow: 0 2px 8px rgba(0, 247, 255, 0.1);
}

.logo {
  font-family: 'Rajdhani', sans-serif;
  font-size: 2rem;
  font-weight: bold;
  color: #00f7ff;
  text-shadow: 0 0 8px #00f7ff;
}

.logo span {
  color: #b0f0f6;
}

.navbar a {
  color: #b0f0f6;
  margin-left: 2rem;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.navbar a:hover {
  color: #00f7ff;
}

.hero {
  text-align: center;
  padding: 5rem 2rem;
  background: linear-gradient(145deg, #001f29 40%, #000814 100%);
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 2rem;
}

.cta-button {
  background-color: #00f7ff;
  color: #000;
  padding: 0.75rem 2rem;
  text-decoration: none;
  font-weight: bold;
  border-radius: 6px;
  transition: background 0.3s;
  box-shadow: 0 0 15px rgba(0, 247, 255, 0.3);
}

.cta-button:hover {
  background-color: #00c4cc;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  margin: 4rem 0 2rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding: 0 3rem 5rem;
}

.feature-card {
  background-color: #001a22;
  padding: 1.8rem;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 0 20px rgba(0, 247, 255, 0.1);
}

.feature-card i {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #00f7ff;
}

.footer {
  background-color: #050505;
  text-align: center;
  padding: 1.5rem;
  font-size: 0.9rem;
  color: #66f9ff;
}