body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #050505;
  color: white;
}

/* NAV */
.nav {
  display: flex;
  justify-content: space-between;
  padding: 20px;
  border-bottom: 1px solid #111;
}

.logo {
  font-weight: bold;
  color: #39ff14;
  font-size: 22px;
}

.nav a {
  color: #aaa;
  margin-left: 15px;
  text-decoration: none;
}

.nav a:hover {
  color: #39ff14;
}

/* HERO */
.hero {
  padding: 100px 20px;
  text-align: center;
}

.hero h1 {
  font-size: 60px;
}

.green {
  color: #39ff14;
}

.hero p {
  color: #aaa;
  max-width: 600px;
  margin: auto;
  margin-top: 20px;
}

.btn {
  display: inline-block;
  margin-top: 30px;
  padding: 12px 25px;
  background: #39ff14;
  color: black;
  font-weight: bold;
  text-decoration: none;
  border-radius: 8px;
}

.btn:hover {
  box-shadow: 0 0 20px #39ff14;
}

/* SECTION */
.section {
  padding: 80px 20px;
  text-align: center;
}

.cards {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.card {
  background: #0b0b0b;
  border: 1px solid #111;
  padding: 20px;
  width: 250px;
  border-radius: 12px;
}

.card:hover {
  border-color: #39ff14;
  box-shadow: 0 0 20px rgba(57,255,20,0.2);
}

/* FOOTER */
.footer {
  text-align: center;
  padding: 30px;
  border-top: 1px solid #111;
  color: #777;
}