body {
  background: #121212;
  font-family: Arial, sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
  color: #f0f0f0;
  padding-bottom: 20px;
}
header {
  background: #1e1e1e;
  color: #bb86fc;
  padding: 30px 0;
  font-size: 2em;
  font-weight: bold;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}
main {
  margin-top: 100px;
}
.device-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 380px;
  margin: 0 auto;
}
.device-list a {
  display: block;
  padding: 15px;
  background: #1e1e1e;
  border: 2px solid #bb86fc;
  border-radius: 10px;
  text-decoration: none;
  font-size: 1.2em;
  color: #bb86fc;
  font-weight: bold;
  transition: 0.2s;
}
.device-list a:hover {
  background: #bb86fc;
  color: #121212;
}
p {
  color: #bb86fc;
}
a {
  color: #00d0ff;
}