:root {
  --bg-dark: #121212;
  --text-light: #e0e0e0;
  --accent-color: #4a4a4a;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
}

a {
  color: #4682B4;
}

.container {
  max-width: 660px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: white;
}

.description {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: var(--text-light);
}

.btn {
  display: inline-block;
  background-color: var(--accent-color);
  color: white;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: #5a5a5a;
}

.telegram-username {
  margin-top: 1rem;
  font-size: 1rem;
  color: #4682B4;
}

footer {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: #808080;
}

@media (max-width: 600px) {
  .container {
      padding: 1rem;
  }

  h1 {
      font-size: 2rem;
  }

  .description {
      font-size: 1rem;
  }
}