body {
  font-family: system-ui, sans-serif;
  display: grid;
  place-items: center;
  height: 100vh;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: #f8fafc;
  text-align: center;
}

h1 { font-size: 3rem; margin-bottom: 1rem; letter-spacing: 2px; }

p.blink { animation: blink 1.2s infinite; }

@keyframes blink {
  0%, 50%, 100% { opacity: 1; }
  25%, 75% { opacity: 0; }
}