body {
  margin: 0;
  background: url("cake.gif") no-repeat center center fixed;
  background-size: cover;
  overflow: hidden;

  /* 가운데 정렬을 위한 flexbox */
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh; /* 화면 전체 높이 */
  flex-direction: column; /* 위아래 배치 */
}

.blink-text {
  font-size: 2.5em; /* 모바일 대비 조금 줄임 */
  font-weight: bold;
  color: white;
  text-align: center;
  animation: blink 2s ease-in-out infinite;
  margin: 0 10px; /* 모바일에서 좌우 여백 */
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.footer-msg {
  position: fixed;
  bottom: 20px;
  width: 100%;
  text-align: center;
}

.footer-msg a {
  color: white;
  font-size: 0.9em;
  text-decoration: none;
  padding: 6px 10px;
  background-color: rgba(0,0,0,0.4);
  transition: background-color 0.3s ease;
}

.footer-msg a:hover {
  background-color: rgba(0,0,0,0.7);
}