* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
  height: 100%;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: #2c3e50;
  color: #ecf0f1;
}
.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  height: 100%;
  padding: 20px;
}
h1 {
  font-size: 4rem;
  margin-bottom: 0.5rem;
}
p {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}
.emoji {
  font-size: 3rem;
  margin-bottom: 1rem;
}
a {
  color: #1abc9c;
  text-decoration: none;
  font-weight: bold;
}
a:hover {
  text-decoration: underline;
}
footer {
  position: absolute;
  bottom: 10px;
  font-size: 0.85rem;
  opacity: 0.6;
}