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

img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  vertical-align: bottom;
}

:root {
  --color-background: linear-gradient(
    119deg,
    rgba(83, 90, 117, 0) -18.57%,
    rgba(83, 90, 117, 0.5) 21.57%,
    #535a75 100%
  );
  --color-white: #fcfcfd;
  --font-cardText: "Quantico", sans-serif;
  --perspective-card: 900px; /*perspectiveは、子要素の奥行きを設定*/
}
body {
  
  background-repeat: no-repeat;
  font-family: var(--font-cardText);
}

.l-page {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  min-height: 80svh;
  max-width: 950px;
  gap: 5px;
  margin: 0rem auto;
  place-items: center;
}

@media (min-width: 768px) {
  .l-page {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 950px) {
  .l-page {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  perspective: var(--perspective-card);
  aspect-ratio: 1/1.4;
  cursor: pointer;
  max-width: 320px;
}

.card__inner {
  display: grid;
  transform-style: preserve-3d;
}

.card__visual {
  display: grid;
  grid-area: 1/1;
  place-items: center;
  backface-visibility: hidden;
  perspective: 800px;
  transform-style: preserve-3d;
}

.card__visual.-front {
  padding: 1px;
  background-color: var(--color-white);
  z-index: 1;
}

.card__visual.-back {
  z-index: 0;
  rotate: y 180deg;
}

.card__visual > * {
  grid-area: 1/1;
}
.card__title {
  color: var(--color-white);
  font-size:  1.3rem;
  text-align: center;
  font-family: YuMincho, "Yu Mincho", "Hiragino Mincho ProN", "serif";
  text-shadow: 4px 4px 8px rgba(83, 90, 117, 0.5);
  translate: 0 0 100px;
}

.card__pattern {
  z-index: -1;
}