:root {
  --bg: #0b0c0e;
  --text: #e8eaed;
  --muted: #8b929c;
  --accent: #6ee7a8;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  display: grid;
  place-items: center;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 ui-sans-serif, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

main { text-align: center; padding: 24px; }

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(110, 231, 168, .5);
  animation: pulse 2.4s ease-out infinite;
  margin-bottom: 20px;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(110, 231, 168, .45); }
  70%  { box-shadow: 0 0 0 14px rgba(110, 231, 168, 0); }
  100% { box-shadow: 0 0 0 0 rgba(110, 231, 168, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .dot { animation: none; }
}

h1 {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

p { margin: 0; color: var(--muted); font-size: 15px; }