/* ========== CONCEPT ========== */
.concept {
  position: relative;
  background-color: var(--color-dark-2);
  overflow: hidden;
}

.concept__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 780px;
  max-width: 1500px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* 左：テキスト */
.concept__text {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 48px;
  text-align: center;
}

.concept__heading {
  font-family: var(--font-midashi-go);
  font-size: 75px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.06em;
  line-height: 1;
  text-align: center;
  margin-bottom: 48px;
}

.concept__body {
  font-family: var(--font-sawarabi);
  font-size: 20px;
  font-weight: 500;
  color: var(--color-white);
  letter-spacing: 0.06em;
  line-height: 2;
  text-align: center;
  margin-bottom: 32px;
}

.concept__body:last-of-type {
  margin-bottom: 48px;
}

/* 右：画像 */
.concept__image {
  overflow: hidden;
}

.concept__image img {
  width: 845px;
  height: 950px;
  object-fit: cover;
  object-position: center;
}

/* ウォーターマーク */
@keyframes watermark-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.concept__watermark {
  display: block;
  width: 100%;
  overflow: hidden;
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 203px;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.5);
  text-stroke: 1px rgba(255, 255, 255, 0.5);
  letter-spacing: 0;
  line-height: 0.8;
  pointer-events: none;
  user-select: none;
}

.concept__watermark-track {
  display: inline-block;
  white-space: nowrap;
  animation: watermark-scroll 60s linear infinite;
}

/* 下層ページ: 親の横 padding を打ち消して全幅表示 */
.cast-archive .concept__watermark,
.access-main .concept__watermark {
  margin-left: -60px;
  width: calc(100% + 120px);
}

/* ========== Mobile ========== */
@media (max-width: 1024px) {
  .concept__inner {
    grid-template-columns: 1fr;
  }

  .concept__image {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }

  .concept__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .concept__text {
    padding: 60px 20px 40px;
  }

  .concept__heading {
    font-size: 40px;
  }

  .concept__watermark {
    font-size: 100px;
  }
}

@media (max-width: 768px) {
  .concept__body {
    font-size: 16px;
  }

  .concept__watermark {
    font-size: 60px;
  }
}