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

body {
  font-family: 'Poppins', sans-serif;
  background-color: #0d1b2a;
  color: #fff;
}

/* Navbar */
.navbar {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 60px;
}

.logo {
  height: 55px;
}

nav a {
  color: #fff;
  text-decoration: none;
  margin-left: 25px;
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover {
  color: #00bfff;
}

/* Hero */
.hero {
  position: relative;
  text-align: center;
  padding: 120px 20px;
  background: linear-gradient(135deg, #00111e, #002b45);
}

.hero .overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.2;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  font-weight: 700;
}

.hero p {
  font-size: 1.2rem;
  color: #ccc;
  margin-bottom: 35px;
}

.btn {
  background: #00bfff;
  color: #fff;
  padding: 15px 35px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.3s;
}

.btn:hover {
  background: #008fcc;
}

/* Features */
.features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 80px 20px;
  background: #0b1a27;
}

.feature {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 30px;
  margin: 15px;
  max-width: 300px;
  text-align: center;
  transition: transform 0.3s;
}

.feature:hover {
  transform: translateY(-8px);
}

.feature h3 {
  color: #00bfff;
  margin-bottom: 15px;
}

/* Footer */
footer {
  text-align: center;
  background: #00111e;
  padding: 40px 20px;
  color: #888;
}

footer a {
  color: #00bfff;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .container { flex-direction: column; }
  nav { margin-top: 10px; }
  .hero h1 { font-size: 2.2rem; }
  .features { flex-direction: column; align-items: center; }
}