@charset "utf-8";

h2 picture img {
  width: 40vw;
  height: auto;
  margin: 5vh auto;
}

#masonry {
  position: relative;
  width: 74%;
  margin: 0 auto 5vh;
}

.item {
  position: absolute;
  box-sizing: border-box;
}

.item img {
  width: 100%;
  height: auto;
  display: block;
}

.modal {
  display: none;
  position: fixed;
  z-index: 9999;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  /* 背景を暗く */
  justify-content: center;
  align-items: center;
}

#prev-button,
#next-button {
  position: fixed;
  top: 50%;
  translate: 0 -50%;
  width: 4svw;
  height: 4svw;
  min-width: 40px;
  min-height: 40px;
  background: none;
  background-image: url(../images/arrow.webp);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  border: none;
  outline: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  transition: all .4s ease-in-out;
}

#prev-button:hover,
#next-button:hover {
  transform: scale(1.16);
}

#prev-button {
  rotate: 180deg;
  left: 4svw;
}

#next-button {
  right: 4svw;
}

/* 拡大画像 */
.modal-content img {
  max-width: 90vw;
  max-height: 90vh;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
}

/* 表示時（flexに） */
.modal.show {
  display: flex;
  animation: fadeIn 0.4s ease;
}

/* フェードインアニメーション */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@media only screen and (max-width: 1280px) {
  #masonry {
    position: relative;
    width: 84%;
    margin: 0 auto 5vh;
  }
}

@media only screen and (max-width: 767px) {
  #masonry {
    position: relative;
    width: 94%;
    margin: 0 auto 5vh;
  }

  #prev-button {
    rotate: 180deg;
    left: 0.5svw;
  }

  #next-button {
    right: 0.5svw;
  }
}