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

body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #121214;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: #ffffff;
  text-align: center;
  overflow: hidden;
}

h2 {
  font-size: 1.9rem;
  font-weight: 400;
  letter-spacing: 0.5px;
  color: #f2f2f2;
  text-shadow: 0 0 18px rgba(255, 255, 255, 0.25);
  animation: glow 3.5s ease-in-out infinite alternate;
}

.dots::after {
  content: '';
  animation: dots 2.0s steps(4, end) infinite;
}

@keyframes dots {
  0%   { content: ''; }
  25%  { content: '.'; }
  50%  { content: '..'; }
  75%  { content: '...'; }
  100% { content: ''; }
}