body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  background: #0d0d0d;
  color: #fff;
  line-height: 1.6;
}
header {
  background: linear-gradient(90deg, #14f195, #9945ff);
  padding: 20px;
  text-align: center;
}
header h1 {
  margin: 0;
  font-size: 24px;
}
nav {
  margin-top: 10px;
}
nav a {
  color: #fff;
  text-decoration: none;
  margin: 0 10px;
  font-weight: 600;
}
nav a.active {
  text-decoration: underline;
}
.hero {
  text-align: center;
  padding: 50px 20px;
}
.hero h2 {
  color: #14f195;
}
.btn {
  display: inline-block;
  margin-top: 15px;
  padding: 10px 20px;
  background: #14f195;
  color: #000;
  border-radius: 8px;
  font-weight: bold;
  text-decoration: none;
}
.features {
  text-align: center;
  padding: 30px 20px;
}
.features ul {
  list-style: none;
  padding: 0;
}
.features li {
  margin: 10px 0;
}
.content {
  max-width: 700px;
  margin: auto;
  padding: 30px 20px;
}
.contact-box {
  background: rgba(255,255,255,0.05);
  padding: 15px;
  border-radius: 10px;
  text-align: center;
  margin-top: 15px;
}
footer {
  background: #111;
  text-align: center;
  padding: 15px;
  font-size: 14px;
  color: #aaa;
}