/* ==========================================================
   50by50 LP — style.css
   確定パレット（13_カラーパレット準拠）
   面は淡く、点で締める。Accentは画面の5〜10%。純黒禁止。
   ========================================================== */
:root {
  --logo-dark: #332763;
  --base: #F6F4F1;
  --base-alt: #F2F0EC;
  --dark-1: #1E1B2E;
  --dark-2: #252135;
  --dark-3: #2C2740;
  --sub-1: #CFC9E2;
  --sub-2: #C4BEDD;
  --accent-rui: #9D8FE6;
  --accent-soft: #A89CDB;

  --font-display: "Shippori Mincho B1", "Noto Serif JP", serif;
  --font-en: "Cormorant Garamond", serif;
  --font-ui: "Zen Kaku Gothic New", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--base);
  color: var(--dark-1);
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 2;
  letter-spacing: 0.06em;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-rui);
  outline-offset: 3px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: color-mix(in srgb, var(--base) 82%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid color-mix(in srgb, var(--sub-1) 50%, transparent);
  transition: padding .3s ease;
}
.header-logo img { height: 36px; width: auto; }
.header-nav { display: flex; gap: 18px; }
.header-nav a {
  font-family: "Cormorant Garamond", "Shippori Mincho B1", serif;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--dark-2);
}
.header-nav a:hover { color: var(--accent-rui); }

/* モバイル: ハンバーガーメニュー（文字列ナビは実機で隠れやすいため） */
.nav-toggle { display: none; }
@media (max-width: 899px) {
  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 7px;
    width: 44px;
    height: 44px;
    padding: 0 11px;
    margin: -8px -6px;
    background: transparent;
    border: none;
    cursor: pointer;
  }
  .nav-toggle span {
    display: block;
    height: 1.5px;
    background: var(--dark-1);
    transition: transform .3s ease;
  }
  /* 開いたら2本線をロゴの斜線╱に重ねる */
  .site-header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(4.25px) rotate(24deg); }
  .site-header.nav-open .nav-toggle span:nth-child(2) { transform: translateY(-4.25px) rotate(24deg); }

  .header-nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    padding: 8px 0 16px;
    background: color-mix(in srgb, var(--base) 97%, var(--sub-1));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid color-mix(in srgb, var(--sub-1) 50%, transparent);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity .25s ease, transform .25s ease, visibility 0s linear .25s;
  }
  .site-header.nav-open .header-nav {
    visibility: visible;
    opacity: 1;
    transform: none;
    transition: opacity .25s ease, transform .25s ease;
  }
  .header-nav a {
    padding: 13px 24px;
    text-align: center;
    font-size: 13.5px;
    letter-spacing: 0.24em;
  }
}
@media (prefers-reduced-motion: reduce) {
  .nav-toggle span, .header-nav { transition: none; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
}
.hero-bg {
  position: absolute; inset: 0;
  z-index: 0;
}
.hero-bg video {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.3; /* 規定: 0.25〜0.35 */
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 58%; /* 水面ライン(WATER_TOP)と合わせる */
}
.hero-bg canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.hero-veil {
  /* 全面を薄めず、文言の背後だけ光だまりを作る局所スクリム */
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 76% 58% at 50% 44%, color-mix(in srgb, var(--base) 55%, transparent), transparent 72%),
    linear-gradient(180deg, color-mix(in srgb, var(--base) 32%, transparent), transparent 20%),
    linear-gradient(0deg, color-mix(in srgb, var(--dark-1) 14%, transparent), transparent 24%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  padding: 96px 24px 64px;
  max-width: 560px;
  /* 原色の絵の上でも文字が沈まないよう、白のグローで浮かせる */
  text-shadow:
    0 0 14px rgba(255, 255, 255, 0.9),
    0 0 34px rgba(255, 255, 255, 0.55);
}
.hero-logo img {
  filter:
    drop-shadow(0 0 12px rgba(255, 255, 255, 0.85))
    drop-shadow(0 0 30px rgba(255, 255, 255, 0.5));
}
.hero-eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.42em;
  color: var(--logo-dark);
  margin-bottom: 28px;
}
.hero-logo img {
  width: min(260px, 64vw);
  margin: 0 auto 36px;
}
.hero-concept {
  font-size: clamp(22px, 6vw, 30px);
  font-weight: 500;
  letter-spacing: 0.14em;
  margin-bottom: 22px;
}
.hero-formula {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--dark-1);
  margin-bottom: 26px;
  display: flex;
  justify-content: center;
  gap: 14px;
  align-items: baseline;
  /* 暗い絵柄の上でも沈まないよう、光彩を多層で強める */
  text-shadow:
    0 0 2px #fff,
    0 0 4px #fff,
    0 0 7px #fff,
    0 0 12px #fff,
    0 0 20px #fff,
    0 0 34px rgba(255, 255, 255, 0.95),
    0 0 60px rgba(255, 255, 255, 0.85);
}
.hero-formula span { font-family: var(--font-display); font-size: 15px; }
.hero-formula i {
  font-style: normal;
  color: var(--logo-dark);
  font-size: 25px;
  line-height: 1;
  align-self: center; /* 漢字と上下中央で揃える */
}
.hero-emotion {
  font-size: 15px;
  letter-spacing: 0.16em;
  color: var(--dark-1);
  margin-bottom: 40px;
  text-shadow:
    0 0 2px #fff,
    0 0 4px #fff,
    0 0 7px #fff,
    0 0 12px #fff,
    0 0 20px #fff,
    0 0 34px rgba(255, 255, 255, 0.95),
    0 0 60px rgba(255, 255, 255, 0.85);
}
.hero-genre {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--logo-dark);
  border-top: 1px solid var(--sub-2);
  border-bottom: 1px solid var(--sub-2);
  padding: 10px 22px;
  background: color-mix(in srgb, var(--base) 42%, transparent);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
/* デスクトップ: 絵の主役（中央〜右の二人）を隠さないよう、コピーを左上へ */
@media (min-width: 900px) {
  .hero-inner {
    position: absolute;
    left: clamp(40px, 7vw, 104px);
    top: clamp(88px, 15vh, 150px);
    padding: 0;
    max-width: 520px;
    text-align: left;
  }
  .hero-logo img { margin: 0 0 26px; }
  .hero-formula { justify-content: flex-start; margin-bottom: 20px; }
  .hero-concept { margin-bottom: 16px; }
  .hero-emotion { margin-bottom: 30px; }
  .hero-veil {
    /* 光だまりも左上へ移動し、コピー下端（暗い衣装部分）までカバー */
    background:
      radial-gradient(ellipse 56% 76% at 20% 40%, color-mix(in srgb, var(--base) 66%, transparent), transparent 72%),
      linear-gradient(180deg, color-mix(in srgb, var(--base) 30%, transparent), transparent 18%),
      linear-gradient(0deg, color-mix(in srgb, var(--dark-1) 14%, transparent), transparent 24%);
  }
}

.hero-scroll {
  position: absolute;
  bottom: 26px; left: 50%;
  transform: translateX(-50%) rotate(24deg); /* 斜線=ロゴの╱に対応 */
  z-index: 1;
}
.hero-scroll-line {
  display: block;
  width: 1px; height: 52px;
  background: linear-gradient(var(--accent-rui), transparent);
  animation: drop 2.4s ease-in-out infinite;
}
@keyframes drop {
  0% { transform: scaleY(0); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: top; }
  56% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== News band ===== */
.news-band {
  background: var(--base-alt);
  border-top: 1px solid color-mix(in srgb, var(--sub-1) 55%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--sub-1) 55%, transparent);
}
.news-list {
  list-style: none;
  max-width: 720px;
  margin: 0 auto;
  padding: 14px 24px;
}
.news-list li {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.news-label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.36em;
  color: var(--accent-rui);
  white-space: nowrap;
}
.news-date {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent-soft);
  white-space: nowrap;
}
.news-text {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--dark-2);
}
a.news-text:hover { color: var(--logo-dark); }

/* ===== Sections common ===== */
.section {
  padding: 88px 24px;
  max-width: 720px;
  margin: 0 auto;
}
.section-head { margin-bottom: 44px; }
.eyebrow {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.36em;
  color: var(--accent-soft);
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(20px, 5.4vw, 26px);
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.8;
}
.section-lead {
  margin-top: 16px;
  font-size: 14px;
  color: var(--dark-3);
  letter-spacing: 0.1em;
}

/* fade-in */
.fade {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .9s ease, transform .9s ease;
}
.fade.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade { opacity: 1; transform: none; transition: none; }
  .hero-scroll-line { animation: none; }
}

/* ===== Entries（はじめ方は、6つ。） ===== */
.section.entries {
  max-width: 980px;
  text-align: center;
  /* 回転カードが画面外へはみ出して横スクロールを生むのを防ぐ */
  overflow-x: hidden;
  overflow-x: clip;
}
.entries {
  --sel-card-w: min(248px, 60vw);
  --sel-card-h: calc(var(--sel-card-w) * 1.42);
  --sel-line: color-mix(in srgb, var(--sub-1) 55%, white);
}
.entry-stage {
  position: relative;
  height: calc(var(--sel-card-h) + 70px);
  margin-top: 34px;
  perspective: 1100px;
  touch-action: pan-y;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}
.entry-stage.dragging { cursor: grabbing; }
.entry-card {
  position: absolute;
  left: 50%; top: 26px;
  width: var(--sel-card-w);
  height: var(--sel-card-h);
  margin-left: calc(var(--sel-card-w) / -2);
  border-radius: 16px;
  padding: 22px 18px 18px;
  background: rgba(255, 255, 255, .86);
  border: 1px solid var(--sel-line);
  box-shadow: 0 18px 40px -22px rgba(52, 46, 110, .45);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  backface-visibility: hidden;
  will-change: transform, opacity;
}
.entry-card .no {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--accent-soft);
}
.entry-card .en {
  font-family: var(--font-en);
  font-weight: 500;
  font-size: 26px;
  letter-spacing: .14em;
  color: var(--dark-1);
}
.entry-card .chip {
  font-family: var(--font-ui);
  font-size: 10px;
  letter-spacing: .18em;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--sel-line);
  color: var(--logo-dark);
  background: #fff;
}
.entry-card .chip.live {
  border-color: var(--accent-rui);
  background: linear-gradient(180deg, #F1EEFB, #E7E2F8);
}
.entry-card .art {
  position: relative;
  width: 100%;
  flex: 1;
  border-radius: 10px;
  margin: 8px 0 4px;
  border: 1px solid var(--sel-line);
  overflow: hidden;
  /* 画像読み込み中のプレースホルダー */
  background:
    radial-gradient(80% 60% at 50% 20%, color-mix(in srgb, var(--sub-2) 40%, transparent), transparent 70%),
    linear-gradient(160deg, #FBFAFE, #EDE9F9);
}
.entry-card .art img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.entry-card .jp {
  font-family: var(--font-ui);
  font-size: 12.5px;
  color: var(--dark-3);
  letter-spacing: .06em;
}
.entry-card.active { border-color: var(--sub-2); }
.entry-card.active::after {
  content: "";
  position: absolute;
  inset: -7px;
  border-radius: 20px;
  border: 1px solid color-mix(in srgb, var(--accent-rui) 45%, transparent);
  pointer-events: none;
}

/* 判定ライン(音ゲーのレーン線) */
.entry-lane {
  position: absolute;
  left: 8%; right: 8%; bottom: 16px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sub-2) 20%, var(--accent-rui) 50%, var(--sub-2) 80%, transparent);
}
.entry-lane::after {
  content: "";
  position: absolute;
  left: 50%; top: -4px;
  width: 9px; height: 9px;
  border-radius: 50%;
  transform: translateX(-50%);
  background: var(--accent-rui);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent-rui) 15%, transparent);
}

/* 選択表示 */
.entry-readout { margin-top: 6px; min-height: 170px; }
.entry-kicker {
  font-family: var(--font-en);
  font-size: 11.5px;
  letter-spacing: .4em;
  color: var(--accent-soft);
}
.entry-readout h3 {
  font-size: clamp(17px, 3.6vw, 21px);
  font-weight: 500;
  letter-spacing: .1em;
  margin: 6px 0;
}
.entry-desc {
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--dark-2);
  margin: 0 auto;
  max-width: 520px;
  line-height: 1.8;
  white-space: pre-line; /* データ内の \n を改行として反映 */
}
.entry-cta { margin-top: 14px; }
.entry-cta[aria-disabled="true"] {
  background: var(--sub-1);
  border-color: var(--sub-1);
  color: var(--dark-3);
  cursor: default;
}
.entry-cta[aria-disabled="true"]:hover { opacity: 1; }

.entry-dots {
  display: flex;
  gap: 9px;
  justify-content: center;
  margin-top: 20px;
}
.entry-dots button {
  width: 8px; height: 8px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: var(--sub-2);
  opacity: .45;
  transition: .2s;
  padding: 0;
}
.entry-dots button.on {
  opacity: 1;
  background: var(--accent-rui);
  transform: scale(1.25);
}
.entry-hint {
  font-family: var(--font-ui);
  font-size: 10.5px;
  color: var(--accent-soft);
  letter-spacing: .1em;
  margin-top: 14px;
}
@media (prefers-reduced-motion: reduce) {
  .entry-dots button { transition: none; }
}

/* ===== Characters ===== */
.characters { max-width: 860px; }
.char-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
}
.char-card figure {
  background: var(--base-alt);
  border: 1px solid color-mix(in srgb, var(--sub-1) 60%, transparent);
  overflow: hidden;
}
.char-card img { width: 100%; aspect-ratio: 2/3; object-fit: cover; }

/* タップで通常⇄戦闘/潜入を切り替え */
.char-toggle {
  position: relative;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.char-toggle .img-alt {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .55s ease;
}
.char-toggle.show-alt .img-alt { opacity: 1; }
.tap-badge {
  position: absolute;
  right: 10px; bottom: 10px;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--logo-dark);
  background: color-mix(in srgb, var(--base) 78%, transparent);
  backdrop-filter: blur(4px);
  border: 1px solid color-mix(in srgb, var(--sub-2) 80%, transparent);
  padding: 5px 10px;
  pointer-events: none;
}
.char-toggle.show-alt .tap-badge { color: var(--accent-rui); }

.relationship-fig {
  margin: 56px auto 0;
  max-width: 480px;
  border: 1px solid color-mix(in srgb, var(--sub-1) 60%, transparent);
}
.relationship-fig img { width: 100%; }
.char-meta { padding: 18px 4px 0; }
.char-code {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--accent-rui);
}
.char-h { color: var(--sub-2); letter-spacing: 0.18em; }
.char-meta h3 {
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.14em;
  margin: 8px 0 12px;
}
.char-desc { font-size: 13.5px; line-height: 2.1; color: var(--dark-2); }

/* 隣り合わせの非対称: 段差配置 */
.char-slash { display: none; }
@media (min-width: 640px) {
  .char-stage {
    grid-template-columns: 1fr 56px 1fr;
    align-items: start;
    gap: 0;
  }
  .char-shade { margin-top: 0; padding-right: 6px; }
  .char-echo  { margin-top: 88px; padding-left: 6px; } /* 段差=非対称 */
  .char-slash {
    display: block;
    position: relative;
    height: 100%;
    min-height: 420px;
  }
  .char-slash span {
    position: absolute;
    top: 6%; bottom: 6%;
    left: 50%;
    width: 1px;
    background: linear-gradient(transparent, var(--accent-rui), transparent);
    transform: rotate(18deg); /* ロゴの斜線 */
  }
}
.char-note {
  margin-top: 56px;
  text-align: center;
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--dark-3);
}

/* ===== About ===== */
.about {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--base);
  max-width: none;
}

.about::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("assets/images/emotion-bg.webp") center right / cover no-repeat;
  opacity: 0.42;
  pointer-events: none;
  z-index: 0;

  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    rgba(0, 0, 0, 0.1) 26%,
    rgba(0, 0, 0, 0.52) 56%,
    rgba(0, 0, 0, 0.88) 78%,
    rgba(0, 0, 0, 1) 100%
  );
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    rgba(0, 0, 0, 0.1) 26%,
    rgba(0, 0, 0, 0.52) 56%,
    rgba(0, 0, 0, 0.88) 78%,
    rgba(0, 0, 0, 1) 100%
  );
}

/* 左側コピーの可読性を保ち、人物背景を淡く沈める */
.about::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to right,
      var(--base) 0%,
      color-mix(in srgb, var(--base) 86%, transparent) 40%,
      color-mix(in srgb, var(--base) 42%, transparent) 70%,
      transparent 100%
    ),
    radial-gradient(
      ellipse 70% 85% at 18% 50%,
      color-mix(in srgb, var(--base) 70%, transparent),
      transparent 72%
    );
  pointer-events: none;
  z-index: 0;
}

.about > * {
  position: relative;
  z-index: 1;
}

.about .section-head,
.about-body {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.about-body p { font-size: 14px; color: var(--dark-2); }
.gauge {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 34px 0;
}
.gauge-label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--dark-3);
  white-space: nowrap;
}
.gauge-bar {
  flex: 1;
  height: 1px;
  background: var(--sub-1);
  position: relative;
}
.gauge-bar i {
  position: absolute;
  left: 50%; top: 50%;
  width: 9px; height: 9px;
  transform: translate(-50%, -50%) rotate(45deg);
  background: var(--accent-rui); /* 50:50の境界点 */
}
.about-en {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--accent-soft);
  line-height: 1.9;
}

/* ===== 50:50 Check（診断） ===== */
.diagnosis { text-align: center; }
.diag-stage {
  max-width: 480px;
  margin: 0 auto;
  background: var(--base-alt);
  border: 1px solid color-mix(in srgb, var(--sub-1) 60%, transparent);
  padding: 44px 26px;
}
.diag-view { animation: diagIn .5s ease; }
@keyframes diagIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}
.diag-copy {
  font-size: 13.5px;
  color: var(--dark-2);
  margin-bottom: 30px;
}
.diag-progress {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--accent-soft);
}
.diag-progress-bar {
  height: 1px;
  background: var(--sub-1);
  margin: 14px auto 30px;
  max-width: 220px;
  position: relative;
}
.diag-progress-bar i {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0%;
  background: var(--accent-rui);
  transition: width .45s ease;
}
.diag-qtext {
  font-size: 16px;
  letter-spacing: 0.1em;
  line-height: 2;
  min-height: 4em;
  margin-bottom: 26px;
}
.diag-choices {
  display: grid;
  gap: 12px;
}
.diag-choice {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--dark-1);
  background: var(--base);
  border: 1px solid var(--sub-2);
  padding: 16px 14px;
  cursor: pointer;
  transition: border-color .25s ease, color .25s ease;
}
.diag-choice:hover { border-color: var(--accent-rui); color: var(--logo-dark); }
.diag-result-eyebrow {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.36em;
  color: var(--accent-soft);
  margin-bottom: 14px;
}
.diag-type {
  font-size: clamp(22px, 6vw, 28px);
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.7;
}
.diag-type-en {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--accent-rui);
  margin: 6px 0 8px;
}
.diag-gauge { max-width: 340px; margin: 26px auto; }
.diag-gauge .gauge-bar i { transition: left .8s ease; }
.diag-gauge b { font-weight: 500; }
.diag-result-copy {
  font-size: 13.5px;
  line-height: 2.1;
  color: var(--dark-2);
  margin-bottom: 28px;
}
.diag-card-fig {
  max-width: 280px;
  margin: 0 auto 26px;
  border: 1px solid var(--sub-2);
}
.diag-card-fig img { width: 100%; }
.diag-card-fig figcaption {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--dark-3);
  padding: 8px 0;
}
.diag-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 18px;
}
.btn-line {
  background: transparent;
  border: 1px solid var(--logo-dark);
  color: var(--logo-dark);
  cursor: pointer;
}
.btn-line:hover { opacity: 0.7; }
.btn-accent { border: 1px solid var(--logo-dark); cursor: pointer; }
.diag-note {
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--dark-3);
  margin-bottom: 24px;
}
.diag-retry {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--dark-3);
  background: none;
  border: none;
  border-bottom: 1px solid var(--sub-2);
  padding: 2px 1px;
  cursor: pointer;
  transition: color .25s ease;
}
.diag-retry:hover { color: var(--accent-rui); }
@media (prefers-reduced-motion: reduce) {
  .diag-view { animation: none; }
  .diag-progress-bar i, .diag-gauge .gauge-bar i { transition: none; }
}
/* ===== World ===== */
.world {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--base-alt);
  max-width: none;
}

.world::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("assets/images/world-city.webp") center right / cover no-repeat;
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;

  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    rgba(0, 0, 0, 0.12) 24%,
    rgba(0, 0, 0, 0.55) 52%,
    rgba(0, 0, 0, 0.9) 76%,
    rgba(0, 0, 0, 1) 100%
  );
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    rgba(0, 0, 0, 0.12) 24%,
    rgba(0, 0, 0, 0.55) 52%,
    rgba(0, 0, 0, 0.9) 76%,
    rgba(0, 0, 0, 1) 100%
  );
}

/* 左側テキストの可読性を保つための薄いベール */
.world::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    var(--base-alt) 0%,
    color-mix(in srgb, var(--base-alt) 78%, transparent) 38%,
    color-mix(in srgb, var(--base-alt) 34%, transparent) 68%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 0;
}

.world > * {
  position: relative;
  z-index: 1;
}

.world .section-head,
.world-body {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.world .section-head { margin-bottom: 36px; }
.world-body p { font-size: 14px; color: var(--dark-2); }
.world-words {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.world-words li {
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--dark-3);
  border: 1px solid var(--sub-2);
  padding: 7px 16px;
}

/* ===== Organizations ===== */
.orgs { max-width: 860px; }
.org-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
@media (min-width: 640px) {
  .org-grid { grid-template-columns: 1fr 1fr; }
  .org-light { margin-top: 36px; } /* ここも段差 */
}
.org-card figure {
  overflow: hidden;
  margin-bottom: 16px;
  border-radius: 20px;
}

.org-card img {
  aspect-ratio: 3/2;
  object-fit: cover;
  width: 100%;
  display: block;
  border-radius: 20px;
}
.org-card h3 {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.18em;
  margin-bottom: 8px;
}
.org-card p { font-size: 13px; color: var(--dark-2); line-height: 2; }
.org-dark h3 { color: var(--logo-dark); }
.org-dark figure { border: 1px solid color-mix(in srgb, var(--logo-dark) 25%, transparent); }
.org-light figure { border: 1px solid color-mix(in srgb, var(--sub-1) 70%, transparent); }

/* ===== TikTok ===== */
.tiktok { text-align: center; }

.tiktok-body {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.tiktok-thumb {
  position: relative;
  display: block;
  width: min(100%, 440px);
  aspect-ratio: 16 / 9;
  margin: 0 auto 32px;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--sub-1) 60%, transparent);
  box-shadow: 0 18px 40px -22px rgba(52, 46, 110, .45);
}
.tiktok-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.tiktok-thumb:hover img { transform: scale(1.04); }
.play-badge {
  position: absolute;
  left: 50%; top: 50%;
  width: 58px; height: 58px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: color-mix(in srgb, var(--base) 82%, transparent);
  backdrop-filter: blur(4px);
  border: 1px solid color-mix(in srgb, var(--sub-2) 80%, transparent);
  box-shadow: 0 10px 24px -10px rgba(52, 46, 110, .5);
}
.play-badge::after {
  content: "";
  position: absolute;
  left: 54%; top: 50%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 10px 0 10px 16px;
  border-color: transparent transparent transparent var(--logo-dark);
}
.thumb-handle {
  position: absolute;
  right: 12px; bottom: 10px;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--logo-dark);
  background: color-mix(in srgb, var(--base) 78%, transparent);
  backdrop-filter: blur(4px);
  border: 1px solid color-mix(in srgb, var(--sub-2) 80%, transparent);
  padding: 4px 10px;
}
@media (prefers-reduced-motion: reduce) {
  .tiktok-thumb img { transition: none; }
  .tiktok-thumb:hover img { transform: none; }
}

.tiktok-embed {
  width: min(100%, 360px) !important;
  max-width: 360px !important;
  min-width: 325px !important;
  margin: 0 auto 32px !important;
  background: transparent !important;
}

.tiktok-embed iframe {
  width: 100% !important;
  max-width: 360px !important;
}
.tiktok-embed-slot {
  margin: 0 auto 32px;
  max-width: 340px;
  aspect-ratio: 9/16;
  max-height: 420px;
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--sub-1) 50%, var(--base-alt)), var(--base-alt));
  border: 1px solid var(--sub-2);
  display: flex;
  align-items: center;
  justify-content: center;
}
.slot-label {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--accent-soft);
}
.btn {
  display: inline-block;
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 13px;
  letter-spacing: 0.14em;
  padding: 14px 34px;
  transition: opacity .25s ease;
}
.btn-accent {
  background: var(--logo-dark);
  color: var(--base);
}
.btn-accent:hover { opacity: 0.86; }

/* ===== Music: Resonant Jukebox ===== */
.jukebox-wrap {
  display: flex;
  justify-content: center;
  padding: 8px 0;
}
.jukebox-wrap iframe {
  max-width: 100%;
  border-radius: 14px;
  box-shadow: 0 18px 40px -22px rgba(52, 46, 110, .45);
}
.jukebox-note {
  margin-top: 16px;
  font-family: var(--font-ui);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--dark-3);
  text-align: center;
}

/* ===== Music ===== */
.music-body {
  display: flex;
  gap: 24px;
  align-items: center;
}
.music-jacket {
  flex: 0 0 128px;
  border: 1px solid var(--sub-2);
}
.music-meta p { font-size: 13.5px; color: var(--dark-2); }
.music-soon {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--accent-soft);
}
@media (max-width: 420px) {
  .music-body { flex-direction: column; align-items: flex-start; }
  .music-jacket { flex-basis: auto; width: 160px; }
}

/* ===== Project ===== */
.project-list { list-style: none; }
.project-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 18px 2px;
  border-bottom: 1px solid color-mix(in srgb, var(--sub-1) 55%, transparent);
}
.pj-name { font-size: 14px; letter-spacing: 0.1em; }
.pj-status {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--accent-rui);
  white-space: nowrap;
}
.project-note {
  margin-top: 40px;
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 12px;
  line-height: 2.1;
  letter-spacing: 0.08em;
  color: var(--dark-3);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-1);
  color: var(--base);
  text-align: center;
  padding: 72px 24px 48px;
}
.footer-concept {
  font-size: 16px;
  letter-spacing: 0.2em;
  margin-bottom: 12px;
}
.footer-en {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--sub-2);
  margin-bottom: 40px;
}
.footer-sns {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 36px;
}
.footer-sns a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  color: var(--sub-1);
  border: 1px solid color-mix(in srgb, var(--sub-2) 45%, transparent);
  border-radius: 50%;
  transition: opacity .2s ease, border-color .2s ease;
}
.footer-sns a:hover {
  opacity: .75;
  border-color: var(--sub-2);
}
.footer-credit {
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--sub-1);
}

/* ===== BGM Control ===== */
.bgm-toggle {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 110;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid color-mix(in srgb, var(--sub-2) 72%, transparent);
  background: color-mix(in srgb, var(--base) 84%, transparent);
  color: var(--logo-dark);
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.18em;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 10px 30px color-mix(in srgb, var(--dark-1) 10%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform .25s ease, background .25s ease, color .25s ease;
}
.bgm-toggle:hover { transform: translateY(-1px); }
.bgm-mark {
  width: 9px;
  height: 9px;
  border: 1px solid var(--accent-rui);
  transform: rotate(45deg);
  background: transparent;
}
.bgm-toggle.is-on {
  background: color-mix(in srgb, var(--logo-dark) 88%, transparent);
  color: var(--base);
}
.bgm-toggle.is-on .bgm-mark { background: var(--accent-rui); }
@media (max-width: 480px) {
  .bgm-toggle {
    right: 14px;
    bottom: 14px;
    padding: 10px 12px;
    font-size: 11px;
  }
}

@media (max-width: 560px) {
  .section-lead,
  .char-note,
  .about-body > p:not(.about-en),
  .world-body p,
  .org-card p,
  .project-note,
  .diag-copy,
  .diag-qtext,
  .diag-result-copy,
  .diag-note {
    text-align: left;
    letter-spacing: 0.04em;
  }

  .tiktok .section-head,
  .diagnosis .section-head {
    text-align: left;
  }

  .diag-copy br {
    display: none;
  }

  .diag-choice {
    text-align: left;
    letter-spacing: 0.04em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bgm-toggle { transition: none; }
  .bgm-toggle:hover { transform: none; }
}