/* Vision Section */
.vision {
  position: relative;
  /* background-image: linear-gradient(135deg, rgba(0,0,0,0.55), rgba(0,0,0,0.85)), url('../assets/images/jpg/bg-hero-black8.jpg'); */
  background-image:
    linear-gradient(0deg, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
    url("../assets/images/png/vision-bg12.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--color-white);
  /* Safari optimization */
}

/* Safari (Mac & iOS/iPadOS) fallback */
@supports (-webkit-backdrop-filter: none) and (not (backdrop-filter: none)) {
  .vision {
    background-attachment: scroll;
    background-size: cover;
    background-position: center center;
  }
}

/* iOS/iPadOS specific fallback */
@supports (-webkit-touch-callout: none) {
  .vision {
    background: none;
    background-attachment: scroll;
    background-size: cover;
    background-position: center center;
    min-height: 100vh;
    /* Prevent zoom issues on iOS */
    -webkit-background-size: cover;
    /* Create a pseudo-element for stable background on iOS */
    position: relative;
  }

  .vision::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
      linear-gradient(0deg, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
      url("../assets/images/png/vision-bg12.png");
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    z-index: -1;
    -webkit-background-size: cover;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    opacity: 0;
    pointer-events: none;
    will-change: opacity;
    backface-visibility: hidden;
  }

  .vision.is-inview::before {
    opacity: 1;
  }

  .vision-pin {
    position: relative;
    z-index: 1;
    background: transparent;
  }
}

/* Global fixed background pseudo-element for Safari fallback */
.vision::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(0deg, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
    url("../assets/images/png/vision-bg12.png");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  z-index: -1;
  -webkit-background-size: cover;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  opacity: 0;
  pointer-events: none;
  will-change: opacity;
  backface-visibility: hidden;
}

.vision.is-inview::before {
  opacity: 1;
}

.vision__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}
.vision__header {
  text-align: center;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding-top: 120px;
  background: transparent;
  z-index: 10;
  /* backdrop-filter: blur(10px);  */
}
.vision__header .section-title {
  font-size: 2.2rem;
  color: var(--color-white);
  text-shadow: 0 0 20px rgba(246, 191, 0, 0.3);
}
.vision__header .section-subtitle {
  font-size: 1rem;
  color: var(--color-gray);
  margin-top: var(--spacing-sm);
}

/* Horizontal Scroll - enable for all widths */
.vision-pin {
  height: 400vh;
  overflow: visible;
  view-timeline-name: --vision-pin;
  view-timeline-axis: block;
  /* スワイプ機能のためのタッチ設定 */
  touch-action: pan-y pinch-zoom;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}
.vision-sticky {
  height: 100vh;
  width: 100vw;
  position: sticky;
  top: 0;
  overflow-x: hidden;
  overscroll-behavior: contain;
  contain: paint; /* isolate painting to reduce background invalidations */
}
.vision-pin {
  overscroll-behavior: contain;
}
.vision-horizontal {
  padding-top: 200px;
  padding-bottom: 100px;
  height: 100%;
  width: 500vw;
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-items: center;
  gap: 0;
  color: var(--color-white);
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
  animation: visionHorizontalScroll linear both;
  animation-timeline: --vision-pin;
  animation-range: contain 0% contain 100%;
}
@keyframes visionHorizontalScroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-400vw);
  }
}

/* JavaScript Fallback for iOS/iPadOS */
.js-scroll-active .vision-horizontal {
  animation: none !important;
  transform: translate3d(var(--scroll-progress, 0), 0, 0);
  transition: none; /* avoid stutter on scroll */
  will-change: transform;
}

/* During JS fallback (Safari), use fixed ::before layer globally */
.vision.js-scroll-active {
  background: none !important;
}
.vision.js-scroll-active::before {
  opacity: 1;
}

/* Ensure progress bar works with JS fallback */
.js-scroll-active .vision-progress__fill {
  transition: none;
  width: 100%;
  transform-origin: left center;
  will-change: transform;
}

/* Reduce heavy effects during JS fallback to avoid stutter */
.js-scroll-active .vision-progress__container {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  background: rgba(0, 0, 0, 0.6);
}

.vision-slide {
  width: 100vw;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0 var(--spacing-md);
  box-sizing: border-box;
}
.vision-slide__content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

/* Top row with text and visual */
.vision-slide__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
  width: 100%;
}

.vision-slide__text h3 {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  text-shadow: 0 0 30px rgba(246, 191, 0, 0.4);
  letter-spacing: 0.1em;
}
.vision-slide__text h4 {
  font-size: 1.25rem;
  color: var(--color-white);
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 0.5rem;
  display: inline-block;
}
.vision-slide__text p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-gray);
  opacity: 0.9;
}
/* Ensure the specific paragraph is left-aligned */
.vision .vision-slide__text p.japanese-text.text-white-20 {
  text-align: left;
}

/* 767px以下のみ適用: 指定段落のサイズを0.75remに */
@media (max-width: 767.98px) {
  .vision .japanese-text.text-white-20 {
    font-size: 0.75rem !important;
  }
}

/* Ensure content fits inside viewport height considering vertical paddings (200+100) */
.vision-slide__content.glass-panel {
  max-height: calc(100vh - 300px);
}

.vision-slide__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  height: auto;
  width: 100%;
}

.vision-slide__visual picture {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: auto;
}

/* CTA section at bottom */
.vision-slide__cta {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin-top: 1rem;
}

/* Geometrics */
.vision__geometric {
  width: 200px;
  height: 200px;
  position: relative;
  filter: drop-shadow(0 0 30px rgba(246, 191, 0, 0.3));
}
.vision__geometric--today {
  background: linear-gradient(45deg, var(--color-accent), #ff6b35);
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
}
.vision__geometric--2030 {
  background: linear-gradient(135deg, var(--color-accent), #00d4aa);
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}
.vision__geometric--2040 {
  background: linear-gradient(90deg, var(--color-accent), #667eea);
  border-radius: 50%;
}
.vision__geometric--2050 {
  background: linear-gradient(180deg, var(--color-accent), #f093fb);
  clip-path: polygon(
    50% 0%,
    61% 35%,
    98% 35%,
    68% 57%,
    79% 91%,
    50% 70%,
    21% 91%,
    32% 57%,
    2% 35%,
    39% 35%
  );
}

/* Progress - absolute like 1920 */
.vision-progress {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 800px;
  z-index: 10;
}
.vision-progress__container {
  background: rgba(0, 0, 0, 0.8);
  border-radius: 20px;
  padding: 16px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(246, 191, 0, 0.2);
}
.vision-progress__bar {
  height: 6px;
  background: rgba(100, 100, 100, 0.3);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 12px;
  position: relative;
}
.vision-progress__fill {
  height: 100%;
  background: linear-gradient(
    90deg,
    #4a90e2,
    #8b5cf6,
    #ec4899,
    #f59e0b,
    #f6bf00
  );
  border-radius: 3px;
  width: 0%;
  box-shadow: 0 0 10px rgba(74, 144, 226, 0.5);
}
.vision-progress__timeline {
  display: flex;
  justify-content: space-between;
  position: relative;
}
.vision-progress__marker {
  font-size: 0.85rem;
  color: var(--color-gray);
  font-family: var(--font-english);
  font-weight: 600;
  position: relative;
  transition: all 0.3s ease;
  opacity: 0.6;
}
.vision-progress__marker::before {
  content: "";
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: rgba(100, 100, 100, 0.5);
  border-radius: 50%;
  transition: all 0.3s ease;
}

/* Responsive */
@media (max-width: 1024px) {
  .vision-slide__top {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* iPad specific optimizations */
@media only screen and (min-device-width: 768px) and (max-device-width: 1366px) and (-webkit-min-device-pixel-ratio: 2) {
  .vision {
    background-size: 150% auto;
    background-position: center center;
  }

  .vision::before {
    background-size: 150% auto !important;
    background-position: center center !important;
  }
}
@media (max-width: 768px) {
  .vision-horizontal {
    padding-top: 160px;
    padding-bottom: 80px;
  }
  /* Adjust max-height to match 160+80 */
  .vision-slide__content.glass-panel {
    max-height: calc(100vh - 240px);
  }
  .vision-slide__content {
    gap: 1.5rem;
    text-align: center;
    padding: 0 1.25rem;
  }
  .vision-slide__top {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    text-align: center;
  }
  .vision-slide__text h3 {
    font-size: 2rem;
  }
  .vision-slide__text h4 {
    font-size: 1.25rem;
  }
  .vision-slide__text p {
    font-size: 1rem;
    line-height: 1.8;
  }
  .vision__geometric {
    width: 180px;
    height: 180px;
  }
  .vision__header .section-title {
    font-size: 2rem;
  }
  .vision-progress__container {
    padding: 15px;
  }
  .vision-progress__bar {
    height: 4px;
    margin-bottom: 10px;
  }
  .vision-progress__marker {
    font-size: 0.8rem;
  }
  .vision-progress__marker::before {
    width: 6px;
    height: 6px;
    top: -14px;
  }
}

/* 767px以下: 英語見出し/日本語見出しのフォントサイズを指定 */
@media (max-width: 767.98px) {
  .vision-slide__text h3.english-text {
    font-size: 1.5rem;
    margin-top: 16px;
    margin-bottom: 0;
  }
  .vision-slide__text h4.japanese-text {
    font-size: 1rem;
  }
}

/* 767px以下: 要素順序を h3 → h4 → picture → p に再配置 */
@media (max-width: 767.98px) {
  .vision-slide__top {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas:
      "h3"
      "h4"
      "picture"
      "p";
    row-gap: 0.75rem;
  }
  .vision-slide__text {
    display: contents;
  }
  .vision-slide__visual {
    display: contents;
  }
  .vision-slide__text h3.english-text {
    grid-area: h3;
  }
  .vision-slide__text h4.japanese-text {
    grid-area: h4;
  }
  .vision-slide__text p {
    grid-area: p;
  }
  .vision-slide__visual picture {
    grid-area: picture;
    justify-self: center;
    margin-top: -16px;
  }
}

/* 767px以下: ヘッダーが<nav>と被らないよう余白を追加 */
@media (max-width: 767.98px) {
  .vision__header .vision__container {
    margin-top: 40px;
  }
}

/* 767px以下: ビジョン見出しサイズを0.9remに */
@media (max-width: 767.98px) {
  .vision__header .section-title {
    font-size: 1.5rem !important;
  }
}

/* 767px以下: サブタイトルを小さく&余白を縮小 */
@media (max-width: 767.98px) {
  .vision__header .section-subtitle {
    font-size: 0.68rem !important;
    margin-top: 0.2rem;
    color: rgb(222, 222, 222);
  }
}

/* 767px以下: スライドコンテンツの高さを統一（50vh） */
@media (max-width: 767.98px) {
  .vision-slide__content {
    height: 48vh;
    padding-left: 8px;
    padding-right: 8px;
  }
  .vision-slide__content.glass-panel {
    height: 64vh;
    max-height: none;
    padding-left: 16px;
    padding-right: 16px;
  }
}

.vision-slide__image {
  width: 100%;
  height: auto;
  display: block;
}

/* 画像の表示幅が実質400px未満（小画面想定）では高さを固定 */
@media (max-width: 399.98px) {
  .vision-slide__image {
    height: 90px;
    width: auto;
    object-fit: contain;
  }
}

/* <=1919.98px: shrink images by ~100px and center */
@media (max-width: 1919.98px) {
  .vision-slide__visual {
    justify-content: center;
    align-items: center;
  }
  .vision-slide__image {
    width: auto;
    max-width: calc(100% - 100px);
    height: auto;
    margin: 0 auto;
    display: block;
  }
}

/* 強制適用（あと勝ち）：400px未満でWebP含む<picture>内の<image>にも高さ120pxを適用 */
@media (max-width: 399.98px) {
  .vision-slide__visual picture > img.vision-slide__image {
    height: 90px !important;
    width: auto;
    object-fit: contain;
  }
}

/* <480px: simple lightbox overlay for tapping images */
@media (max-width: 479.98px) {
  .image-lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1002;
  }
  .image-lightbox-overlay.is-open {
    display: flex;
    animation: overlayFadeIn 180ms ease-out;
  }
  .image-lightbox-overlay img {
    max-width: 96vw;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    border-radius: 6px;
    animation: zoomIn 180ms ease-out;
  }
  .lightbox-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 999px;
    width: 36px;
    height: 36px;
    font-size: 20px;
    line-height: 34px;
    text-align: center;
  }
  .lightbox-hint {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 12px;
    padding: 6px 8px;
    background: rgba(0, 0, 0, 0.35);
    border-radius: 999px;
  }
  body.modal-open {
    overflow: hidden;
    touch-action: none;
  }
  @keyframes overlayFadeIn {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }
  @keyframes zoomIn {
    from {
      transform: scale(0.96);
      opacity: 0;
    }
    to {
      transform: scale(1);
      opacity: 1;
    }
  }
}