:root {
  --bg: #111;
  --text: #eee;
  --highlight: #a855f7;
  --box: #1a1a1a;
  --shadow: rgba(168, 85, 247, 0.3);
  --footer-bg: #1a1a1a;
  --footer-link: #aaa;
  --footer-link-hover: #fff;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  padding-bottom: 70px;
}

.container {
  max-width: 700px;
  margin: 80px auto 40px;
  padding: 0 20px;
}

h1 {
  font-weight: 700;
  font-size: 3em;
  margin-bottom: 30px;
  user-select: none;
}

.description {
  background: var(--box);
  padding: 30px 30px 36px;
  border-radius: 18px;
  box-shadow: 0 10px 28px var(--shadow);
  text-align: left;
  font-size: 1.15em;
  line-height: 1.6;
  user-select: text;
}

.description p {
  margin-bottom: 22px;
}

.highlight {
  color: var(--highlight);
  font-weight: 700;
}

footer {
  background: var(--footer-bg);
  padding: 15px 0;
  position: fixed;
  width: 100%;
  bottom: 0;
  text-align: center;
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.9);
  user-select: none;
}

footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

footer li {
  display: inline-block;
  margin: 0 18px;
  font-weight: 500;
}

footer a {
  color: var(--footer-link);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 12px;
  transition: color 0.25s ease, background-color 0.25s ease;
}

footer a:hover {
  color: var(--footer-link-hover);
  background-color: var(--highlight);
  box-shadow: 0 4px 20px var(--shadow);
}