body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  background: #111;
  color: #eee;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #222;
  padding: 10px 20px;
}

header .logo {
  font-size: 1.5em;
  font-weight: bold;
  color: #0f0;
}

nav a {
  color: #eee;
  margin: 0 10px;
  text-decoration: none;
}

nav a:hover {
  color: #0f0;
}

.hero {
  text-align: center;
  padding: 100px 20px;
  background: linear-gradient(to right, #222, #333);
}

.hero h1 {
  font-size: 2.5em;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2em;
  margin-bottom: 30px;
}

.buttons {
  margin-top: 20px;
}

.btn {
  display: inline-block;
  padding: 12px 25px;
  background: #0f0;
  color: #111;
  font-weight: bold;
  text-decoration: none;
  border-radius: 5px;
  margin: 0 10px;
}

.btn:hover {
  background: #0c0;
}

footer {
  text-align: center;
  padding: 20px;
  background: #222;
  color: #aaa;
}

body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  background: linear-gradient(270deg, #ff7e5f, #feb47b, #6a11cb, #2575fc);
  background-size: 800% 800%;
  animation: gradientMove 20s ease infinite;
  color: #fff;
}

@keyframes gradientMove {
  0% {background-position:0% 50%;}
  50% {background-position:100% 50%;}
  100% {background-position:0% 50%;}
}