:root{--color:#2563eb}body{margin:0;font-family:system-ui,sans-serif;background:#f9fafb;color:#111827}main{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center}h1{margin-bottom:1rem}.counter{font-size:6rem;font-weight:700;color:var(--color)}.timestamp{margin-top:1rem;opacity:.7}