@charset "utf-8";



/* ========================================
   ENTER扉演出
======================================== */

.ytd-door-overlay {
  position: fixed;
  inset: 0;
  z-index: 2147483000;
  overflow: hidden;
  background: #fff;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .8s ease-in-out, visibility .8s;
}
.ytd-door-overlay.ytd-door-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* 2560×1440の仮想キャンバス */
.ytd-door-stage {
  position: absolute;
  width: 2560px;
  height: 1440px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%)
    scale(var(--ytd-door-scale, 1));
  transform-origin: center;
}

/* 壁と白い開口部 */
.ytd-door-background {
  position: absolute;
  inset: 0;
  background:
    url("https://www.yumeno-tobira.com/wp-content/themes/yumenotobira-pc/images/door_bg_pc.jpg")
    center / 100% 100% no-repeat;
}

/* 立体的な扉 */
.ytd-door-perspective {
  position: absolute;
  inset: 0;
  perspective: 1600px;
  transform-style: preserve-3d;
}

.ytd-door-panel {
  position: absolute;
  top: 0;
  width: 574px;
  height: 1440px;
  display: block;
  z-index: 1;
  backface-visibility: hidden;
  will-change: transform;
  transition: transform .9s cubic-bezier(.18, .65, .25, 1);
}

.ytd-door-left {
  left: 706px;
  transform-origin: left center;
}

.ytd-door-right {
  left: 1280px;
  transform-origin: right center;
}

/* 35度程度だけ開く */
.ytd-door-overlay.ytd-door-opening .ytd-door-left {
  transform: rotateY(-38deg);
}

.ytd-door-overlay.ytd-door-opening .ytd-door-right {
  transform: rotateY(38deg);
}

/* ========================================
   中央から漏れる光
======================================== */

.ytd-door-light {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  pointer-events: none;

  background:
    radial-gradient(
      ellipse 16% 80% at 50% 50%,
      rgba(255,255,255,1) 0%,
      rgba(255,255,255,.95) 20%,
      rgba(255,255,255,.45) 55%,
      rgba(255,255,255,0) 100%
    );

  transform: scaleX(.05);
  transform-origin: center;
  transition:
    opacity .35s ease-out,
    transform .7s ease-out;
}

/* 扉が開き始めた瞬間 */
.ytd-door-overlay.ytd-door-opening .ytd-door-light {
  opacity: 1;
  transform: scaleX(1.6);
}

/* ========================================
   ホワイトアウト
======================================== */

.ytd-door-whiteout {
  position: absolute;
  inset: 0;
  z-index: 3;
  background: #fff;
  opacity: 0;
  pointer-events: none;
  transition: opacity .45s ease-in;
}

.ytd-door-overlay.ytd-door-finish .ytd-door-whiteout {
  opacity: 1;
}