body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0d0d0d;
  color: #fff;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #111;
  padding: 10px 20px;
}

header .logo {
  font-size: 1.5em;
  font-weight: bold;
}

header .logo span {
  color: #ffcc00;
}

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

nav a.signup {
  background: #ffcc00;
  color: #000;
  padding: 5px 10px;
  border-radius: 4px;
}

.hero {
  text-align: center;
  padding: 100px 20px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.6), #0d0d0d),
              url('https://via.placeholder.com/1920x600') center/cover;
}

.hero h1 {
  font-size: 2.5em;
}

.hero p {
  max-width: 600px;
  margin: 20px auto;
}

.cta {
  display: inline-block;
  background: #ffcc00;
  color: #000;
  padding: 10px 20px;
  margin-top: 15px;
  border-radius: 4px;
  font-weight: bold;
  text-decoration: none;
}

.features {
  display: flex;
  justify-content: space-around;
  padding: 50px 20px;
  flex-wrap: wrap;
}

.feature {
  text-align: center;
  max-width: 250px;
  margin: 20px;
}

footer {
  background: #111;
  text-align: center;
  padding: 15px;
  font-size: 0.9em;
}