@charset "UTF-8";
/* ===== KV Intro 基本レイアウト ===== */
html.is-home-ready body {
  background-color: #f7f6f3;
}

.kv {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #0e0e0e;
  color: #fff;
}
.kv[aria-hidden=true] {
  display: none;
}

.kv__media {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.kv__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-position: center;
  background-size: cover;
  opacity: 0;
  transform: none;
  will-change: opacity, filter, transform;
}

.kv__bg--night {
  /* フォールバック（image-set未対応向け） */
  background-image: url("../img/kv/kv-night_pc.webp");
  /* 互換配慮（古めSafari向け） */
  background-image: -webkit-image-set(url("../img/kv/kv-night_pc.webp") 1x, url("../img/kv/kv-night_pc@2x.webp") 2x, url("../img/kv/kv-night_pc@3x.webp") 3x);
  /* 標準 */
  background-image: image-set(url("../img/kv/kv-night_pc.webp") 1x, url("../img/kv/kv-night_pc@2x.webp") 2x, url("../img/kv/kv-night_pc@3x.webp") 3x);
  opacity: 1;
}

.kv__bg--day {
  background-image: url("../img/kv/kv-noon_pc.webp");
  background-image: -webkit-image-set(url("../img/kv/kv-noon_pc.webp") 1x, url("../img/kv/kv-noon_pc@2x.webp") 2x);
  background-image: image-set(url("../img/kv/kv-noon_pc.webp") 1x, url("../img/kv/kv-noon_pc@2x.webp") 2x);
  opacity: 0;
  transform: scale(1.025);
  transform-origin: center center;
}

@media (max-width: 767px) {
  .kv__bg--night {
    background-image: url("../img/kv/kv-night_sp.webp");
    background-image: -webkit-image-set(url("../img/kv/kv-night_sp.webp") 1x, url("../img/kv/kv-night_sp@2x.webp") 2x);
    background-image: image-set(url("../img/kv/kv-night_sp.webp") 1x, url("../img/kv/kv-night_sp@2x.webp") 2x);
  }
  .kv__bg--day {
    background-image: url("../img/kv/kv-noon_sp.webp");
    background-image: -webkit-image-set(url("../img/kv/kv-noon_sp.webp") 1x, url("../img/kv/kv-noon_sp@2x.webp") 2x);
    background-image: image-set(url("../img/kv/kv-noon_sp.webp") 1x, url("../img/kv/kv-noon_sp@2x.webp") 2x);
  }
}
.kv__scrim {
  position: absolute;
  inset: 0;
  background: radial-gradient(120vmax 90vmax at 50% 40%, transparent 0%, rgba(0, 0, 0, 0.35) 55%, rgba(0, 0, 0, 0.7) 100%);
}

.kv__center {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 40px;
}

.kv__logo {
  display: block;
  width: min(64vw, 360px);
  height: auto;
  aspect-ratio: 430/330;
  opacity: 0;
  visibility: hidden;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.35)) blur(14px) brightness(0.92) saturate(0.96);
  transform: none;
  will-change: opacity, filter;
}

/* ===== SPだけ：ロゴはCSSトランジションで“じゅわ〜” ===== */
@media (max-width: 767px) {
  .kv__logo {
    opacity: 0;
    visibility: visible;
    transition: none;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.35));
    will-change: opacity;
  }
}