@charset "utf-8";

/* ==========================================
   Corporate Custom Stylesheet
   ========================================== */
:root {
  --primary-color: #0f172a;
  --theme-color: #1e95d4;
  /* ★ロゴと同一のテーマカラー（青） */
  --text-light: #f8fafc;
}

/* テーマカラー共通ユーティリティクラス */
.text-theme {
  color: var(--theme-color) !important;
}


.bg-theme {
  background-color: var(--theme-color) !important;
}

.border-theme {
  border-color: var(--theme-color) !important;
}

.hover-text-theme:hover {
  color: var(--theme-color) !important;
}

body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  overflow-x: hidden;
}


/* ==========================================
   チカッ（フラッシュ・シフト）完全防止 & オープニング設定
   ========================================== */

/* 最初から最後までスクロールバーの領域を画面に固定し、チラつきを100%防止 */
html {
  overflow-y: scroll;
  scrollbar-gutter: stable;
  overflow-x: hidden;
  width: 100%;
}

body {
  overflow-x: hidden;
  width: 100%;
}

#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #050505;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: slideOutUp 0.8s cubic-bezier(0.85, 0, 0.15, 1) 2.0s forwards;
  pointer-events: none;
}

@keyframes slideOutUp {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-100%);
  }
}

#loading-logo {
  width: 25vw;
  min-width: 120px;
  height: auto;
  opacity: 0;
  animation:
    logoPopIn 0.8s cubic-bezier(0.165, 0.840, 0.440, 1.000) 0.2s forwards,
    logoFadeOut 0.5s cubic-bezier(0.55, 0.085, 0.68, 0.53) 1.5s forwards;
}

@keyframes logoPopIn {
  0% {
    opacity: 0;
    transform: scale(0.7) translateY(20px);
    filter: blur(15px);
  }

  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
    filter: blur(0);
  }
}

@keyframes logoFadeOut {
  0% {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }

  100% {
    opacity: 0;
    transform: scale(1.1);
    filter: blur(10px);
  }
}

/* MVテキスト アニメーション (パターンB ふわっと上がる) */
.mv-line-1,
.mv-line-2 {
  opacity: 0;
  will-change: transform, opacity, filter;
}

#mv-content.is-animated .mv-line-1 {
  animation: mvMaskRiseSoft 1.8s cubic-bezier(0.19, 1, 0.22, 1) 0.0s forwards;
}

#mv-content.is-animated .mv-line-2 {
  animation: mvMaskRiseSoft 1.8s cubic-bezier(0.19, 1, 0.22, 1) 0.3s forwards;
}

@keyframes mvMaskRiseSoft {
  0% {
    opacity: 0;
    transform: translateY(70px);
    filter: blur(12px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

/* ヘッダーフェードイン */
header.opening-header-fade {
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity 1s cubic-bezier(0.165, 0.840, 0.440, 1.000), transform 1s cubic-bezier(0.165, 0.840, 0.440, 1.000);
}

body.is-loaded header.opening-header-fade {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================
   スクロール連動ヘッダーカラー制御 (白↔黒)
   ========================================== */

/* デフォルト（黒背景のとき）: 文字色は白 */
#main-navbar {
  color: #ffffff;
  transition: color 0.4s ease-in-out;
}

/* 白背景セクションの上に来たとき: 文字色を濃いネイビー黒に変更 */
#main-navbar.is-light {
  color: #0f172a !important;
}

/* ドロワーメニューが開いている時は強制的に白文字にリセット */
#mobile-menu {
  color: #ffffff !important;
}

/* 1. 最背面の固定ビデオコンテナ */
.fixed-video-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: -18;
  overflow: hidden;
  pointer-events: none;
  transition: opacity 1.5s ease-in-out;
  will-change: opacity;
}

.fixed-video-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 2. 背景グレーマスク（スクロール連動用） */
.scroll-mask-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(10, 15, 30, 0.4);
  z-index: -10;
  opacity: 1;
  pointer-events: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition: background-color 0.1s ease-out;
}

/* RECRUITセクション通過時にスクロールマスクを薄く透過させる */
.scroll-mask-overlay.is-weak-mask {
  background-color: rgba(10, 15, 30, 0.25) !important;
  /* 0.25まで薄く透過 */
  transition: background-color 0.6s ease-in-out;
}

/* 3. スクロールを促す矢印のアニメーション */
.scroll-down-indicator {
  position: absolute;
  bottom: 2rem;
  right: 3%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-light);
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  z-index: 5;
}

.scroll-tategaki {
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.scroll-down-arrow {
  width: 1px;
  height: 60px;
  background: rgba(255, 255, 255, 0.3);
  margin-top: 8px;
  position: relative;
  overflow: hidden;
}

.scroll-down-arrow::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #ffffff;
  animation: scrollDownAnim 2s infinite ease-in-out;
}

@keyframes scrollDownAnim {
  0% {
    transform: scaleY(0);
    transform-origin: top;
  }

  50% {
    transform: scaleY(1);
    transform-origin: top;
  }

  51% {
    transform: scaleY(1);
    transform-origin: bottom;
  }

  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

footer {
  background-color: #0f172a;
}

/* ==========================================
   Scroll Animation Classes
   ========================================== */

.giant-text {
  opacity: 0;
  transform: scale(0.9) translateY(30px);
  filter: blur(8px);
  transition: opacity 1.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.6s cubic-bezier(0.16, 1, 0.3, 1),
    filter 1.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform, filter;
}

.giant-text.is-visible {
  opacity: 0.95;
  transform: scale(1) translateY(0);
  filter: blur(0);
}

.fade-up-element {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.fade-up-element.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-100 {
  transition-delay: 100ms;
}

.delay-200 {
  transition-delay: 200ms;
}

.delay-300 {
  transition-delay: 300ms;
}

.delay-400 {
  transition-delay: 400ms;
}

.delay-500 {
  transition-delay: 500ms;
}

.delay-700 {
  transition-delay: 700ms;
}

/* ==========================================
   Background Image Slideshow (Ken Burns Effect)
   ========================================== */

.fixed-slideshow-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: -19;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.fixed-slideshow-bg.is-active {
  opacity: 1;
}

.slideshow-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 2.5s ease-in-out;
  transform: scale(1);
  will-change: opacity, transform;
}

.slideshow-slide.is-visible {
  opacity: 1;
}

.slideshow-slide.zoom-in {
  animation: kenburns-zoomin 12s ease-in-out infinite;
}

.slideshow-slide.zoom-out {
  animation: kenburns-zoomout 12s ease-in-out infinite;
}

@keyframes kenburns-zoomin {
  0% {
    transform: scale(1);
  }

  100% {
    transform: scale(1.15);
  }
}

@keyframes kenburns-zoomout {
  0% {
    transform: scale(1.15);
  }

  100% {
    transform: scale(1);
  }
}

/* ==========================================
   Reusable Component Styles
   ========================================== */

.slide-in-left {
  opacity: 0;
  transform: translateX(-80px);
  filter: blur(10px);
  transition: opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    filter 1.4s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: 0.5s;
  will-change: opacity, transform, filter;
}

.slide-in-left.is-visible {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(80px);
  filter: blur(10px);
  transition: opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.4s cubic-bezier(0.16, 1, 0.3, 1),
    filter 1.4s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: 0.9s;
  will-change: opacity, transform, filter;
}

.slide-in-right.is-visible {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

.giant-text-left {
  letter-spacing: 0.05em;
  background: linear-gradient(180deg, #0f172a 0%, rgba(15, 23, 42, 0.12) 100%);
  -webkit-background-clip: text;
}

.subpage-hero {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.subpage-title-container {
  width: 100%;
  max-width: 85rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.subpage-full-image-wrapper {
  position: relative;
  width: 100vw;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  height: 60vh;
  min-height: 380px;
  max-height: 680px;
  overflow: hidden;
  margin-top: 1.5rem;
  margin-bottom: 3rem;
  /* border-top: 1px solid rgba(15, 23, 42, 0.08);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08); */
}

.parallax-img {
  position: absolute;
  top: -25%;
  left: 0;
  width: 100%;
  height: 150%;
  background-size: cover;
  background-position: center;
  will-change: transform;
  transition: transform 0.1s linear;
}

.blackBox {
  position: absolute;
  background-color: white;
  width: 6rem;
  height: 6rem;
  z-index: 0;
  right: -2rem;
  bottom: -2rem;
}

.about-parallax-left,
.about-parallax-right {
  will-change: transform;
  transition: transform 0.1s cubic-bezier(0, 0, 0.2, 1);
}

.about-interactive-card {
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.about-flow-card {
  will-change: transform, opacity;
  transition: transform 0.05s linear, opacity 0.05s linear;
}

/* Product-section 用のレイヤー＆パララックス設定 */
.slide-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  will-change: transform;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  transform: translateZ(0);
}

.slide-inner {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  will-change: transform;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.view-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  transition: border-color 0.3s;
}

.view-more-btn:hover {
  border-bottom-color: #fff;
}