body {
  margin: 0;
  background: #0d0f12;
  color: #e6e6e6;
  font-family: 'Inter', sans-serif;
}

nav {
  display: flex;
  justify-content: space-between;
  padding: 20px 40px;
  background: #0f1115;
  border-bottom: 1px solid #1a1d23;
}

.logo {
  color: #4cc9f0;
  font-weight: 700;
  letter-spacing: 1px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 25px;
}

nav a {
  color: #9aa0a6;
  text-decoration: none;
  transition: 0.2s;
}

nav a:hover,
nav a.active {
  color: #4cc9f0;
}

.hero {
  text-align: center;
  padding: 120px 20px;
}

.hero h2 {
  font-size: 2.5rem;
  color: #4cc9f0;
}

.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 24px;
  background: #4cc9f0;
  color: #0d0f12;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
}

.content {
  max-width: 900px;
  margin: 60px auto;
  padding: 0 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.card {
  background: #13161c;
  padding: 20px;
  border-radius: 6px;
  border: 1px solid #1f232b;
  transition: 0.2s;
}

.card:hover {
  border-color: #4cc9f0;
  transform: translateY(-3px);
}