* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;

  display: flex;
  align-items: center;
  justify-content: center;

  background: #ffffff;
  font-family: system-ui, -apple-system, Arial, sans-serif;
}

/* ссылка */
.blur-link {
  color: #000;
  text-decoration: none;

  font-size: 24px;
  letter-spacing: 0.04em;

  /* аккуратный blur */
  filter: blur(1.6px);
  opacity: 0.55;

  transition:
    filter 0.3s ease,
    opacity 0.3s ease;
}

/* наведение */
.blur-link:hover {
  filter: blur(0);
  opacity: 1;
}