* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  font-family: "Chiron GoRound TC", sans-serif;
  background: #f8f5f2;
  color: #1a1a1a;
  overflow: hidden;
  line-height: 1.35;
  height: 100%;
}

.spread {
  position: relative;
  width: 1200px;
  height: 700px;
  margin: 60px auto;
  overflow: hidden;
}

.spread::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../images/open-book.png") center/contain no-repeat;
  filter: drop-shadow(0 6px 12px rgba(0,0,0,0.12))
          drop-shadow(0 16px 28px rgba(0,0,0,0.08));
  z-index: 0;
}

.page-left,
.page-right {
  position: absolute;
  top: 20%;
  bottom: 10%;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  z-index: 1;
  display: block;
  transition: transform .15s ease;
}

.page-left:hover,
.page-right:hover {
  transform: scale(1.01);
}

.page-left {
  left: 15%;
  right: 50%;
}

.page-right {
  left: 50%;
  right: 15%;
}

.page-title {
  position: absolute;
  text-align: center;
  font-size: 18px;
  font-weight: 500;
  white-space: nowrap;
  opacity: .25;
  transition: opacity .25s ease, transform .25s ease;
  pointer-events: none;
  text-shadow: 0 1px 0 rgba(255,255,255,.4),
               0 0 8px rgba(0,0,0,.05);
}

.page-left:hover .page-title {
  opacity: .9;
  transform: translate(-50%, calc(-50% - 2%));
}

.page-right:hover .page-title {
  opacity: .9;
  transform: translate(-50%, calc(-50% - 2%));
}

@media (hover: none) {
  .page-title { opacity: .55; }
}

.title-left {
  top: 6%;    /* 높이 비율 */
  left: 60%;   /* 가로 중앙 기준 */
  transform: translate(-50%, -50%);
}

.title-right {
  top: 10%;
  left: 41%;
  transform: translate(-50%, -50%);
}

.calendar,
.meme {
  position: absolute;
  overflow: hidden;
  filter: brightness(.97) contrast(.95);
}

.calendar {
  width: 45%;
  left: 38%;
  top: 10%;
}

.meme {
  width: 55%;
  right: 32%;
  top: 14%;
}