/* ==========================================================================
   RECERQA AI Agent Tournament 2027 — LP
   世界観: 黒の空間・静かな緊張感・ゴールドの一筋（planning/03_lp_storyboard_v0.md）
   ========================================================================== */

:root {
  color-scheme: dark;
  --bg: #0a0908;
  --bg-deep: #131009;
  --band: #16130e;
  --paper: #f2efe7;
  --paper-ink: #1a1812;
  --white: #ffffff;
  --gold: #b89657;
  --gold-2: #d6ba85;
  --gold-dim: #806636;
  --line: rgba(255, 255, 255, 0.14);
  --line-soft: rgba(255, 255, 255, 0.08);
  --line-dark: rgba(26, 24, 18, 0.16);
  --muted: rgba(255, 255, 255, 0.6);
  --muted-2: rgba(255, 255, 255, 0.42);
  --muted-dark: rgba(26, 24, 18, 0.64);
  --danger: #ff9a9a;
  --success: #c7e5ae;
  --content: 1280px;
  --gutter: max(24px, calc((100vw - var(--content)) / 2));
  --ease: cubic-bezier(0.22, 0.61, 0.21, 1);
  --font-display: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-ui: "Manrope", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--white);
  background: var(--bg);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.9;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

::selection {
  color: var(--bg);
  background: var(--gold-2);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

button,
a,
input,
summary {
  -webkit-tap-highlight-color: transparent;
}

img {
  display: block;
  max-width: 100%;
}

figure,
blockquote,
dl,
dd,
h1,
h2,
h3,
p,
ol,
ul {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: 0.035em;
  text-wrap: balance;
}

p,
dd,
dt {
  text-wrap: pretty;
}

:focus-visible {
  outline: 2px solid var(--gold-2);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   共通パーツ
   -------------------------------------------------------------------------- */

.skip-link {
  position: fixed;
  z-index: 300;
  top: 16px;
  left: 16px;
  padding: 8px 12px;
  color: var(--bg);
  background: var(--white);
  transform: translateY(-180%);
  transition: transform 400ms var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

.kicker {
  color: var(--gold-2);
  font-size: 12px;
  font-weight: 700;
  line-height: 17px;
  letter-spacing: 0.16em;
}

.section-paper .kicker {
  color: var(--gold-dim);
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  line-height: 22px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 300ms ease, color 300ms ease, border-color 300ms ease, transform 400ms var(--ease);
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--bg);
  background: var(--white);
}

.button-primary:hover {
  background: var(--gold-2);
}

/* 途中のコンバージョンポイント（勝ち上がり方・参加者の声の末尾） */
.mid-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px 40px;
  margin-top: 88px;
  padding: 36px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.mid-cta-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.2vw, 30px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

.mid-cta-text {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.mid-cta .button {
  flex: none;
}

.text-link {
  position: relative;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  transition: color 300ms ease;
}

.text-link:hover {
  color: var(--white);
}

.text-link span {
  display: inline-block;
  margin-left: 8px;
  color: var(--gold-2);
  transition: transform 400ms var(--ease);
}

.text-link:hover span {
  transform: translateY(3px);
}

.pc-only {
  display: inline;
}

/* 見出しの文節単位改行: 折り返しは .nb の境界だけで起きる */
.nb {
  display: inline-block;
}

/* --------------------------------------------------------------------------
   ヘッダー
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 22px var(--gutter) 20px;
  border-bottom: 1px solid transparent;
  transition: background 500ms var(--ease), border-color 500ms var(--ease),
    transform 500ms var(--ease), padding 500ms var(--ease);
}

.site-header.is-scrolled {
  padding-top: 14px;
  padding-bottom: 13px;
  border-color: var(--line-soft);
  background: rgba(10, 9, 8, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.site-header.is-hidden {
  transform: translateY(-102%);
}

.brand {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
}

.brand img {
  width: 128px;
  height: auto;
}

.desktop-nav {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 26px;
}

.desktop-nav a {
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
  font-weight: 700;
  line-height: 16px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  transition: color 300ms ease;
}

.desktop-nav a:hover {
  color: var(--white);
}

.desktop-nav .nav-cta {
  flex-shrink: 0;
  padding: 11px 18px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  color: var(--white);
  transition: border-color 300ms ease, background 300ms ease, color 300ms ease;
}

.desktop-nav .nav-cta:hover {
  border-color: var(--white);
  color: var(--bg);
  background: var(--white);
}

.menu-button {
  position: relative;
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--white);
  background: rgba(10, 9, 8, 0.5);
  cursor: pointer;
}

.menu-button span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 1.5px;
  background: currentColor;
  transform: translate(-50%, -4.5px);
  transition: transform 450ms var(--ease);
}

.menu-button span:last-child {
  transform: translate(-50%, 3.5px);
}

.menu-button[aria-expanded="true"] span {
  transform: translate(-50%, -1px) rotate(45deg);
}

.menu-button[aria-expanded="true"] span:last-child {
  transform: translate(-50%, -1px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  z-index: 90;
  inset: 0;
  display: grid;
  visibility: hidden;
  place-items: center;
  background: rgba(10, 9, 8, 0.94);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  opacity: 0;
  transition: opacity 450ms var(--ease), visibility 450ms var(--ease);
}

.mobile-menu.is-open {
  visibility: visible;
  opacity: 1;
}

.mobile-menu nav {
  display: grid;
  gap: 22px;
  width: min(380px, calc(100% - 48px));
  text-align: center;
}

.mobile-menu nav > a:not(.button) {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 34px;
}

.mobile-menu nav > .button {
  margin-top: 14px;
}

.menu-sns {
  color: var(--muted-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

/* --------------------------------------------------------------------------
   Hero — スクロール連動動画
   .hero の高さがスクラブ区間。stage が 100svh でピン留めされる。
   JS が --a1 / --a2（各幕の表示量 0..1）と --hp（全体進行）を更新する。
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  /* 動画7秒をゆっくり進めるためのスクラブ距離。短くすると歩きが速くなる */
  height: 440vh;
  --hp: 0;
  --a1: 1;
  --a2: 0;
}

.hero-stage {
  position: sticky;
  top: 0;
  height: 100svh;
  overflow: clip;
}

.hero-media,
.hero-media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media video {
  object-fit: cover;
  object-position: 42% center;
  transform: scale(calc(1.06 - var(--hp) * 0.06));
  will-change: transform;
}

/* 可読性のための遮光。左＝コピー面、下＝フッター情報面 */
.hero-scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(8, 7, 6, 0.78) 0%, rgba(8, 7, 6, 0.36) 34%, rgba(8, 7, 6, 0) 62%),
    linear-gradient(180deg, rgba(8, 7, 6, 0.42) 0%, rgba(8, 7, 6, 0) 22%, rgba(8, 7, 6, 0) 62%, rgba(8, 7, 6, 0.66) 100%);
}

.hero-act {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-act-1 {
  max-width: calc(var(--gutter) + 970px);
  padding: 96px 48px 140px var(--gutter);
  opacity: var(--a1);
  transform: translateY(calc(var(--hp) * -72px));
}

.hero-act-1.is-past {
  visibility: hidden;
  pointer-events: none;
}

.hero h1 {
  margin-bottom: 36px;
  font-size: clamp(38px, 4.45vw, 64px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

.hero-h1-sub {
  display: block;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(20px, 2.3vw, 33px);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.hero-lede {
  max-width: 640px;
  margin-bottom: 40px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  line-height: 2.1;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: 44px;
}

.hero-eyebrow {
  margin-bottom: 22px;
  color: var(--gold-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.hero-eyebrow-sep {
  margin: 0 0.6em;
  color: var(--gold-dim);
}

.hero-proof {
  color: var(--muted-2);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.hero-proof b {
  color: var(--gold-2);
  font-weight: 700;
}

.hero-proof small {
  font-size: 11px;
}

.hero-act-2 {
  z-index: 1;
  align-items: center;
  padding: 0 var(--gutter);
  text-align: center;
  opacity: var(--a2);
  pointer-events: none;
}

.hero-act-2-main {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.8vw, 86px);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: 0.05em;
  transform: translateY(calc((1 - var(--a2)) * 48px));
}

.hero-act-2-sub {
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(15px, 1.5vw, 20px);
  font-weight: 600;
  letter-spacing: 0.16em;
  transform: translateY(calc((1 - var(--a2)) * 28px));
}

.hero-foot {
  position: absolute;
  z-index: 3;
  right: var(--gutter);
  bottom: 0;
  left: var(--gutter);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  padding: 0 0 34px;
}

.hero-foot-scroll {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted-2);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.3em;
}

.hero-foot-line {
  display: block;
  width: 180px;
  height: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.24);
}

.hero-foot-line b {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--gold-2);
  transform: scaleX(var(--hp));
  transform-origin: left center;
}

.hero-foot-meta {
  display: flex;
  gap: 44px;
}

.hero-foot-meta div {
  min-width: 0;
}

.hero-foot-meta dt {
  margin-bottom: 2px;
  color: var(--muted-2);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.hero-foot-meta dd {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   マーキー
   -------------------------------------------------------------------------- */

.marquee {
  overflow: clip;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 42s linear infinite;
}

.marquee-track span {
  flex-shrink: 0;
  color: var(--muted-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  white-space: nowrap;
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

/* --------------------------------------------------------------------------
   タグライン — 語単位のスクロールリビール
   -------------------------------------------------------------------------- */

.tagline {
  position: relative;
  height: 230vh;
  background: var(--bg);
}

.tagline-stage {
  position: sticky;
  top: 0;
  display: flex;
  height: 100svh;
  align-items: center;
  padding: 0 var(--gutter);
}

.tagline-text {
  max-width: 1080px;
  font-family: var(--font-display);
  font-size: clamp(30px, 4.4vw, 58px);
  font-weight: 600;
  line-height: 1.86;
  letter-spacing: 0.05em;
}

.tagline-line {
  display: block;
}

.tw {
  display: inline-block;
  opacity: 0.14;
  transition: opacity 400ms linear, color 400ms linear;
}

.tagline-line:last-child .tw:last-child.lit {
  color: var(--gold-2);
}

/* --------------------------------------------------------------------------
   20 → 10 → 1
   -------------------------------------------------------------------------- */

.ladder {
  position: relative;
  /* スクラブ距離。ヒーロー同様、短くすると映像の進みが速くなる */
  height: 340vh;
  background: var(--bg);
  --lp: 0;
}

.ladder-stage {
  position: sticky;
  top: 0;
  display: grid;
  height: 100svh;
  align-items: center;
  overflow: clip;
  padding: 0 var(--gutter);
}

.ladder-media,
.ladder-media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.ladder-media video {
  object-fit: cover;
  filter: brightness(0.6) saturate(0.82);
}

.ladder-scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(130% 100% at 50% 52%, rgba(8, 7, 6, 0.3) 0%, rgba(8, 7, 6, 0.62) 74%, rgba(8, 7, 6, 0.82) 100%),
    linear-gradient(180deg, rgba(8, 7, 6, 0.9) 0%, rgba(8, 7, 6, 0.22) 20%, rgba(8, 7, 6, 0.22) 78%, rgba(8, 7, 6, 0.9) 100%);
}

.ladder .section-inner {
  position: relative;
  z-index: 1;
}

.ladder-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-left: 1px solid var(--line-soft);
}

.ladder-list li {
  min-width: 0;
  padding: 10px 36px 6px;
  border-right: 1px solid var(--line-soft);
}

.ladder-label {
  display: block;
  margin-bottom: 34px;
  color: var(--gold-2);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.ladder-number {
  display: block;
  margin-bottom: 22px;
  font-family: var(--font-display);
  font-size: clamp(110px, 13vw, 190px);
  font-weight: 500;
  line-height: 0.94;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}

/* 桁の多い数字（応募者 100+）は列幅に収まるよう縮める。スマホは1列なので等倍のまま */
.ladder-number.is-long {
  display: flex;
  align-items: flex-end;
  height: calc(0.94 * clamp(110px, 13vw, 190px));
  font-size: clamp(72px, 8.2vw, 122px);
}

.ladder-list .is-gold .ladder-number {
  color: var(--gold-2);
}

.ladder-list p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}

/* --------------------------------------------------------------------------
   セクション共通スキャフォールド
   -------------------------------------------------------------------------- */

.section {
  scroll-margin-top: 72px;
  padding: clamp(100px, 12vw, 170px) var(--gutter);
}

.section-inner {
  width: 100%;
  max-width: var(--content);
  margin: 0 auto;
}

.section-paper {
  color: var(--paper-ink);
  background: var(--paper);
}

.section-dark {
  color: var(--white);
  background: var(--bg);
}

.section-deep {
  color: var(--white);
  background: var(--bg-deep);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: clamp(52px, 7vw, 88px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.section-paper .section-head {
  border-color: var(--line-dark);
}

.section-index {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.1em;
  opacity: 0.5;
}

.section-index::before {
  content: "／ ";
  color: var(--gold);
}

.section-lead {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 40px 88px;
  align-items: end;
  margin-bottom: clamp(56px, 8vw, 96px);
}

.section-lead h2 {
  font-size: clamp(34px, 4vw, 54px);
}

.section-lead > p {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 16px;
  line-height: 2;
}

.section-paper .section-lead > p {
  color: var(--muted-dark);
}

/* 開催概要の冒頭: 予定変更の可能性と登録への案内 */
.details-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 32px;
  padding: 18px 0 22px;
  border-top: 1px solid var(--line-dark);
  color: var(--paper-ink);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.8;
}

.details-notice .text-link {
  flex: none;
  color: var(--paper-ink);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.details-notice .text-link:hover {
  color: var(--gold-dim);
}

.details-notice .text-link span {
  color: var(--gold-dim);
}

/* --------------------------------------------------------------------------
   About — 取り組み4項目・写真
   -------------------------------------------------------------------------- */

.step-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: clamp(80px, 10vw, 130px);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.step-list li {
  min-width: 0;
  padding: 34px 28px 40px;
  border-right: 1px solid var(--line-dark);
}

.step-list li:first-child {
  padding-left: 0;
}

.step-list li:last-child {
  padding-right: 0;
  border-right: 0;
}

.step-index {
  display: block;
  margin-bottom: 44px;
  color: var(--gold-dim);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.step-list h3 {
  margin-bottom: 16px;
  font-size: 23px;
}

.step-list p {
  color: var(--muted-dark);
  font-size: 14px;
  line-height: 1.9;
}

.photo-explainer {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  gap: 40px 88px;
  align-items: center;
}

.photo-explainer figure {
  position: relative;
  height: clamp(380px, 42vw, 560px);
  overflow: clip;
}

.photo-explainer img {
  width: 100%;
  height: 114%;
  object-fit: cover;
  transform: translateY(var(--py, 0));
  will-change: transform;
}

.photo-explainer .kicker {
  display: block;
  margin-bottom: 22px;
}

.photo-explainer h3 {
  margin-bottom: 24px;
  font-size: clamp(26px, 2.6vw, 34px);
}

.photo-explainer div > p:last-child {
  color: var(--muted-dark);
  font-size: 16px;
}

figure figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  padding: 6px 10px;
  color: rgba(255, 255, 255, 0.76);
  background: rgba(8, 7, 6, 0.62);
  font-size: 10px;
  letter-spacing: 0.06em;
  line-height: 15px;
}

/* --------------------------------------------------------------------------
   Format — 4ステージ（ゴールドの縦ルートが進行に合わせて伸びる）
   -------------------------------------------------------------------------- */

.stage-list {
  position: relative;
  margin-bottom: clamp(72px, 9vw, 110px);
}

.stage-list::before,
.stage-list::after {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 31px;
  width: 1px;
}

.stage-list::before {
  background: var(--line-soft);
}

.stage-list::after {
  background: var(--gold);
  transform: scaleY(var(--route, 0));
  transform-origin: top center;
}

.stage-row {
  position: relative;
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr) auto;
  gap: 24px 40px;
  padding: 46px 0 44px;
  border-bottom: 1px solid var(--line-soft);
}

.stage-row:last-child {
  border-bottom: 0;
}

.stage-no {
  position: relative;
  padding-left: 64px;
}

.stage-no::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 27.5px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--bg);
  transition: background 400ms ease, box-shadow 400ms ease;
}

.stage-no strong {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.04em;
}

.stage-title {
  margin-bottom: 18px;
  font-size: clamp(24px, 2.4vw, 32px);
}

.stage-title small {
  display: block;
  margin-top: 10px;
  color: var(--gold-2);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.stage-body > p:not(.stage-result) {
  max-width: 560px;
  color: var(--muted);
  font-size: 14px;
  line-height: 2;
}

.stage-result {
  margin-top: 22px;
  color: var(--gold-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.stage-result::before {
  content: "→ ";
}

.stage-count {
  display: flex;
  align-items: baseline;
  align-self: center;
  gap: 6px;
}

.stage-count b {
  font-family: var(--font-display);
  font-size: clamp(48px, 5.4vw, 76px);
  font-weight: 500;
  line-height: 1;
  color: rgba(255, 255, 255, 0.3);
  font-variant-numeric: tabular-nums;
}

.stage-count span {
  color: var(--muted-2);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.stage-row.is-champion .stage-title {
  color: var(--gold-2);
}

.support-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.support-strip li {
  min-width: 0;
  padding: 34px 32px 38px;
  border-right: 1px solid var(--line-soft);
}

.support-strip li:first-child {
  padding-left: 0;
}

.support-strip li:last-child {
  padding-right: 0;
  border-right: 0;
}

.support-strip span {
  display: block;
  margin-bottom: 24px;
  color: var(--gold-2);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.support-strip strong {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.2vw, 30px);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.support-strip p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

/* --------------------------------------------------------------------------
   Program — 3日間
   -------------------------------------------------------------------------- */

.program-layout {
  display: grid;
  grid-template-columns: minmax(360px, 0.92fr) minmax(0, 1.08fr);
  gap: 48px 88px;
  align-items: start;
  margin-bottom: clamp(80px, 10vw, 120px);
}

.program-photo {
  position: sticky;
  top: 96px;
  height: clamp(460px, 52vw, 640px);
  overflow: clip;
}

.program-photo img {
  width: 100%;
  height: 114%;
  object-fit: cover;
  object-position: 60% center;
  transform: translateY(var(--py, 0));
  will-change: transform;
}

.day-item {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 32px;
  padding: 40px 0;
  border-top: 1px solid var(--line-dark);
}

.day-item:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.day-no span {
  display: block;
  margin-bottom: 4px;
  color: var(--gold-dim);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.22em;
}

.day-no strong {
  font-family: var(--font-display);
  font-size: 62px;
  font-weight: 500;
  line-height: 1;
}

.day-item h3 {
  margin-bottom: 14px;
  font-size: 24px;
}

.day-item section > p {
  margin-bottom: 20px;
  color: var(--muted-dark);
  font-size: 15px;
}

.day-item dl {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 12px;
  font-size: 12px;
  line-height: 1.7;
}

.day-item dt {
  color: var(--gold-dim);
  font-weight: 700;
}

.evaluation-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.65fr) minmax(0, 1.35fr);
  gap: 48px 88px;
  padding: clamp(40px, 5vw, 72px);
  color: var(--white);
  background: var(--band);
}

.evaluation-band .kicker {
  display: block;
  margin-bottom: 24px;
}

.evaluation-band h3 {
  font-size: clamp(22px, 2.1vw, 28px);
}

.evaluation-band ul {
  border-top: 1px solid var(--line-soft);
}

.evaluation-band li {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

.evaluation-band strong {
  color: var(--gold-2);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.evaluation-band span {
  color: var(--muted);
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   What you gain — 参加インセンティブ
   -------------------------------------------------------------------------- */

.gain-feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 44px 88px;
  align-items: center;
  padding: 48px 0 56px;
  border-top: 1px solid var(--line-soft);
}

.gain-index {
  display: block;
  margin-bottom: 20px;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--gold-2);
  letter-spacing: 0.1em;
}

.gain-feature h3 {
  margin-bottom: 20px;
  font-size: clamp(26px, 2.7vw, 36px);
}

.gain-feature p {
  max-width: 520px;
  color: var(--muted);
  font-size: 15px;
  line-height: 2;
}

.gain-cxo {
  display: flex;
  gap: 14px;
}

.gain-cxo li {
  width: clamp(116px, 12vw, 172px);
}

.gain-cxo img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center top;
  filter: saturate(0.88);
}

.gain-cxo span {
  display: block;
  margin-top: 10px;
  color: var(--gold-2);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.22em;
}

.gain-cxo strong {
  display: block;
  margin-top: 4px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.gain-list li {
  display: grid;
  grid-template-columns: 64px minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 20px 44px;
  align-items: baseline;
  padding: 32px 0;
  border-top: 1px solid var(--line-soft);
}

.gain-list li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.gain-list span {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--gold-dim);
  letter-spacing: 0.1em;
}

.gain-list h3 {
  font-size: clamp(20px, 1.9vw, 24px);
}

.gain-list p {
  color: var(--muted);
  font-size: 14px;
  line-height: 2;
}

/* --------------------------------------------------------------------------
   Results — 参加者の声（第1回・第2回アンケート）
   -------------------------------------------------------------------------- */

.results-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.94fr);
  gap: 48px 96px;
  align-items: center;
  margin-bottom: clamp(72px, 9vw, 110px);
}

.results-copy h2 {
  margin-bottom: 30px;
  font-size: clamp(30px, 3.3vw, 44px);
}

.results-copy > p {
  color: var(--muted);
  font-size: 16px;
}

.metric-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 48px;
  border-left: 1px solid var(--line-soft);
}

.metric-list div {
  min-width: 0;
  padding: 6px 24px;
  border-right: 1px solid var(--line-soft);
}

.metric-list dd b {
  font-family: var(--font-display);
  font-size: clamp(42px, 4.4vw, 64px);
  font-weight: 500;
  line-height: 1.1;
  color: var(--gold-2);
  font-variant-numeric: tabular-nums;
}

.metric-list dd small {
  color: var(--gold-dim);
  font-size: 13px;
}

.metric-list dt {
  margin-top: 14px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
  text-wrap: balance;
}

.metric-list dt span {
  display: block;
  margin-top: 3px;
  color: var(--muted-2);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.results-copy > .survey-note {
  margin-top: 20px;
  color: var(--muted-2);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.results-photo {
  position: relative;
  height: clamp(420px, 48vw, 620px);
  overflow: clip;
}

.results-photo img {
  width: 100%;
  height: 114%;
  object-fit: cover;
  transform: translateY(var(--py, 0));
  will-change: transform;
}

/* 参加前の印象と実際: 声の中から1つを大きく扱う */
.voice-feature {
  max-width: 980px;
  margin: 0 0 clamp(72px, 9vw, 110px);
  padding: clamp(36px, 4vw, 52px) 0;
  border-top: 1px solid var(--gold-dim);
  border-bottom: 1px solid var(--line-soft);
}

.voice-feature-label {
  margin-bottom: 22px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.voice-feature blockquote p {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.6vw, 34px);
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.03em;
  text-wrap: pretty;
}

.voice-feature figcaption {
  position: static;
  margin-top: 22px;
  padding: 0;
  background: none;
  color: var(--muted-2);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.voices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 64px 56px;
}

.voice-theme {
  display: block;
  margin-bottom: 14px;
  color: var(--gold);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.voices blockquote {
  position: relative;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.voices blockquote p {
  margin-bottom: 24px;
  font-family: var(--font-display);
  font-size: clamp(18px, 1.5vw, 21px);
  font-weight: 500;
  line-height: 1.95;
  letter-spacing: 0.04em;
}

.voices footer {
  color: var(--muted-2);
  font-size: 11px;
  letter-spacing: 0.08em;
}

/* --------------------------------------------------------------------------
   Details / FAQ
   -------------------------------------------------------------------------- */

.details-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.6fr);
  gap: 48px 88px;
  align-items: start;
  margin-bottom: clamp(90px, 11vw, 140px);
}

.details-list {
  border-top: 1px solid var(--line-dark);
}

.details-list div {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 24px;
  padding: 21px 0;
  border-bottom: 1px solid var(--line-dark);
}

.details-list dt {
  color: var(--muted-dark);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.details-list dd {
  font-size: 15px;
  font-weight: 600;
}

.details-note {
  position: sticky;
  top: 96px;
  padding: 40px 36px 44px;
  color: var(--white);
  background: var(--band);
}

.details-note .kicker {
  display: block;
  margin-bottom: 24px;
}

.details-note h3 {
  margin-bottom: 20px;
  font-size: 22px;
}

.details-note > p:last-child {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 2;
}

.faq {
  scroll-margin-top: 72px;
  display: grid;
  grid-template-columns: minmax(280px, 0.55fr) minmax(0, 1.45fr);
  gap: 48px 88px;
  align-items: start;
}

.faq-heading h2 {
  font-size: clamp(26px, 2.4vw, 34px);
  white-space: nowrap;
}

.faq-list details {
  border-top: 1px solid var(--line-dark);
}

.faq-list details:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.faq-list summary {
  position: relative;
  padding: 26px 52px 26px 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.7;
  cursor: pointer;
  list-style: none;
  transition: color 300ms ease;
}

.faq-list summary:hover {
  color: var(--gold-dim);
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::before,
.faq-list summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 6px;
  width: 16px;
  height: 1px;
  background: currentColor;
  transition: transform 350ms var(--ease);
}

.faq-list summary::after {
  transform: rotate(90deg);
}

.faq-list details[open] summary::after {
  transform: rotate(0);
}

.faq-list details p {
  max-width: 720px;
  margin-bottom: 26px;
  padding-right: 48px;
  color: var(--muted-dark);
  font-size: 15px;
}

/* --------------------------------------------------------------------------
   Notify — Final CTA（Heroの空間へ戻る）
   -------------------------------------------------------------------------- */

.notify-section {
  position: relative;
  display: grid;
  min-height: 96svh;
  place-items: center;
  overflow: clip;
  padding: 140px var(--gutter);
  scroll-margin-top: 0;
}

.notify-bg {
  position: absolute;
  inset: 0;
  background-image: url("assets/hero-tournament-poster.jpg");
  background-position: center 30%;
  background-size: cover;
  filter: brightness(0.34) saturate(0.82);
}

.notify-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(10, 9, 8, 0.42) 30%, rgba(10, 9, 8, 0.5) 70%, var(--bg) 100%);
}

.notify-inner {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
  text-align: center;
}

.notify-inner .kicker {
  display: block;
  margin-bottom: 30px;
}

.notify-inner h2 {
  margin-bottom: 30px;
  font-size: clamp(40px, 5.6vw, 82px);
  line-height: 1.34;
}

.notify-lede {
  margin-bottom: 52px;
  color: var(--muted);
  font-size: 15px;
}

.notify-lede strong {
  display: block;
  margin-bottom: 8px;
  color: var(--gold-2);
  font-size: 16px;
  font-weight: 700;
}

.notify-form {
  width: min(620px, 100%);
  margin: 0 auto;
  text-align: left;
}

.notify-form label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.notify-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 12px;
}

.notify-field.is-wide {
  grid-column: 1 / -1;
}

.notify-field input {
  width: 100%;
  min-height: 52px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--white);
  background: rgba(10, 9, 8, 0.6);
  outline: none;
  transition: border-color 300ms ease, background 300ms ease;
}

.notify-field input:focus {
  border-color: var(--gold-2);
  background: rgba(10, 9, 8, 0.85);
}

.notify-field input.is-invalid,
.notify-consent input.is-invalid {
  border-color: var(--danger);
  outline: 1px solid var(--danger);
}

.notify-form .notify-consent {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0 0;
  color: var(--white);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
}

.notify-consent input {
  width: 18px;
  height: 18px;
  flex: none;
  accent-color: var(--gold);
}

.notify-consent a {
  color: var(--gold-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.notify-submit {
  width: 100%;
  margin-top: 22px;
}

.notify-submit:disabled {
  opacity: 0.6;
  cursor: progress;
}

.form-help,
.form-status {
  margin-top: 10px;
  color: var(--muted-2);
  font-size: 11px;
}

.form-status {
  min-height: 20px;
}

.form-status.is-error {
  color: var(--danger);
}

.form-status.is-success {
  color: var(--success);
}

.notify-sns {
  margin-top: 30px;
  color: var(--muted-2);
  font-size: 12px;
  text-align: center;
}

.notify-sns a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--gold-dim);
  transition: color 300ms ease;
}

.notify-sns a:hover {
  color: var(--white);
}

/* --------------------------------------------------------------------------
   フッター・モバイルCTA・質感
   -------------------------------------------------------------------------- */

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 48px;
  align-items: end;
  padding: 52px var(--gutter) 46px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted-2);
  background: var(--bg);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.site-footer img {
  width: 116px;
  height: auto;
  margin-bottom: 14px;
  opacity: 0.9;
}

.site-footer nav {
  display: flex;
  gap: 20px;
}

.site-footer a:hover {
  color: var(--white);
}

.mobile-cta {
  position: fixed;
  z-index: 80;
  right: 0;
  bottom: 0;
  left: 0;
  display: none;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(10, 9, 8, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--line-soft);
  transform: translateY(105%);
  transition: transform 450ms var(--ease);
}

.mobile-cta.is-visible {
  transform: translateY(0);
}

.mobile-cta .button {
  width: 100%;
  min-height: 50px;
}

/* フィルムグレイン（静的）。720p動画の質感を底上げする */
.grain {
  position: fixed;
  z-index: 200;
  inset: 0;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 140px 140px;
}

/* --------------------------------------------------------------------------
   スクロールスクラブ（JSが --sp を 0..1 で毎フレーム更新。逆再生も追従）
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  html.js [data-scrub] {
    --sp: 0;
  }

  html.js .ladder-list li {
    opacity: calc(0.12 + var(--sp, 0) * 0.88);
  }

  html.js .ladder-list li > * {
    transform: translateY(calc((1 - var(--sp, 0)) * 56px));
  }

  html.js .section-lead[data-scrub] {
    transform: translateY(calc((0.5 - var(--sp, 0.5)) * 30px));
  }

  html.js .stage-count[data-scrub] b {
    display: inline-block;
    transform: translateY(calc((0.5 - var(--sp, 0.5)) * 48px));
  }

  html.js .day-no[data-scrub] strong {
    display: inline-block;
    transform: translateY(calc((0.5 - var(--sp, 0.5)) * 22px));
  }

  html.js .metric-list dd[data-scrub] {
    transform: translateY(calc((0.5 - var(--sp, 0.5)) * 20px));
  }

  html.js .notify-bg[data-scrub] {
    transform: scale(calc(1.12 - var(--sp, 0) * 0.12));
  }

  /* マーキーはJSがスクロール速度に合わせて駆動する */
  html.js .marquee-track {
    animation: none;
  }
}

/* ルートラインが通過したステージの点を金で灯す */
.stage-row.is-passed .stage-no::before {
  background: var(--gold);
  box-shadow: 0 0 12px rgba(184, 150, 87, 0.55);
}

/* --------------------------------------------------------------------------
   リビール（JSが .in を付与）
   -------------------------------------------------------------------------- */

html.js .reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 900ms var(--ease), transform 900ms var(--ease);
  transition-delay: var(--rd, 0ms);
}

html.js .reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   規約・404ページ（terms.html / 404.html が使用）
   -------------------------------------------------------------------------- */

.legal-page {
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding: 32px;
  background: var(--bg);
}

.legal-page main {
  width: min(720px, 100%);
  padding: 64px;
  border: 1px solid var(--line-soft);
  background: var(--bg-deep);
}

.legal-brand {
  display: inline-flex;
  margin-bottom: 72px;
}

.legal-brand img {
  width: 128px;
  height: auto;
}

.legal-page .eyebrow {
  margin-bottom: 18px;
  color: var(--gold-2);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.legal-page h1 {
  margin-bottom: 24px;
  font-size: clamp(34px, 5vw, 52px);
}

.legal-page main > p:not(.eyebrow) {
  margin-bottom: 36px;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   レスポンシブ
   -------------------------------------------------------------------------- */

@media (max-width: 1120px) {
  .desktop-nav {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .hero-foot-meta {
    gap: 28px;
  }

  .voices {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .section-lead,
  .photo-explainer,
  .program-layout,
  .evaluation-band,
  .results-layout,
  .details-layout,
  .faq {
    grid-template-columns: 1fr;
  }

  .hero {
    height: 380vh;
  }

  .hero-act-1 {
    max-width: none;
    padding: 96px 24px 150px;
  }

  .hero-foot-meta {
    display: none;
  }

  .step-list {
    grid-template-columns: 1fr 1fr;
  }

  .step-list li:nth-child(2n) {
    padding-right: 0;
    border-right: 0;
  }

  .step-list li:nth-child(n + 3) {
    border-top: 1px solid var(--line-dark);
  }

  .step-list li:nth-child(3) {
    padding-left: 0;
  }

  .step-list li:nth-child(2),
  .step-list li:nth-child(4) {
    padding-left: 28px;
  }

  .program-photo {
    position: relative;
    top: 0;
  }

  .details-note {
    position: relative;
    top: 0;
  }

  .voices {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .gain-feature {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .gain-cxo {
    width: 100%;
  }

  .gain-cxo li {
    width: 0;
    flex: 1 1 0;
  }

  .gain-list li {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .ladder-list {
    grid-template-columns: 1fr;
    border-left: 0;
    border-top: 1px solid var(--line-soft);
  }

  .ladder-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: end;
    column-gap: 28px;
    padding: 26px 0 30px;
    border-right: 0;
    border-bottom: 1px solid var(--line-soft);
  }

  .ladder-label {
    grid-column: 1 / -1;
    margin-bottom: 16px;
  }

  .ladder-number {
    margin-bottom: 0;
    font-size: clamp(84px, 21vw, 130px);
  }

  .ladder-number.is-long {
    display: block;
    height: auto;
    font-size: clamp(84px, 21vw, 130px);
  }

  .ladder-list p {
    margin-bottom: 8px;
  }

  .ladder-list p br {
    display: none;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }

  .pc-only {
    display: none;
  }

  .site-header {
    padding: 14px 20px;
  }

  .site-header.is-scrolled {
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .brand img {
    width: 108px;
  }

  .hero {
    height: 340vh;
  }

  .hero-act-1 {
    justify-content: flex-end;
    padding: 110px 20px 132px;
  }

  .hero h1 {
    margin-bottom: 22px;
    font-size: clamp(30px, 9.8vw, 38px);
  }

  .hero-h1-sub {
    margin-top: 12px;
    font-size: clamp(17px, 5.6vw, 22px);
  }

  .hero-lede {
    margin-bottom: 30px;
    font-size: 14.5px;
    line-height: 2;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
  }

  .hero-eyebrow .nb {
    display: block;
  }

  .hero-eyebrow-sep {
    display: none;
  }

  .hero-act-1 .button {
    width: 100%;
  }

  .hero-act-2-main {
    font-size: clamp(30px, 9.6vw, 38px);
  }

  .hero-act-2-sub {
    margin-top: 18px;
    font-size: 13px;
    letter-spacing: 0.12em;
  }

  .hero-foot {
    right: 20px;
    bottom: 0;
    left: 20px;
    padding-bottom: 24px;
  }

  .hero-media video {
    object-position: 46% center;
  }

  .marquee {
    padding: 14px 0;
  }

  .marquee-track span {
    font-size: 10px;
  }

  .tagline {
    height: 200vh;
  }

  .tagline-text {
    font-size: clamp(24px, 6.8vw, 30px);
    line-height: 2;
  }

  .ladder {
    height: 300vh;
  }

  .ladder-stage {
    padding: 0 20px;
  }

  .section {
    padding: 88px 20px;
  }

  .section-head {
    margin-bottom: 44px;
  }

  .section-lead {
    gap: 24px;
  }

  .section-lead h2 {
    font-size: clamp(30px, 8.6vw, 38px);
  }

  .step-list {
    grid-template-columns: 1fr;
    margin-bottom: 72px;
  }

  .step-list li,
  .step-list li:nth-child(2),
  .step-list li:nth-child(4) {
    padding: 26px 0 30px;
    border-right: 0;
  }

  .step-list li:nth-child(2) {
    border-top: 1px solid var(--line-dark);
  }

  .step-index {
    margin-bottom: 18px;
  }

  .photo-explainer figure {
    height: 320px;
  }

  .stage-list::before,
  .stage-list::after {
    left: 4px;
  }

  .stage-row {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 34px 0 34px 32px;
  }

  .stage-no {
    padding-left: 0;
  }

  .stage-no::before {
    top: 8px;
    left: -31.5px;
  }

  .stage-count {
    display: none;
  }

  .stage-title {
    margin-bottom: 12px;
  }

  .support-strip {
    grid-template-columns: 1fr;
  }

  .support-strip li,
  .support-strip li:first-child,
  .support-strip li:last-child {
    padding: 26px 0 30px;
    border-right: 0;
  }

  .support-strip li:not(:first-child) {
    border-top: 1px solid var(--line-soft);
  }

  .program-photo {
    height: 340px;
  }

  .day-item {
    grid-template-columns: 60px 1fr;
    gap: 20px;
    padding: 30px 0;
  }

  .day-no strong {
    font-size: 46px;
  }

  .day-item h3 {
    font-size: 20px;
  }

  .day-item dl {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .evaluation-band {
    padding: 36px 24px;
  }

  .evaluation-band li {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 16px 0;
  }

  .metric-list {
    grid-template-columns: 1fr;
    border-left: 0;
    border-top: 1px solid var(--line-soft);
  }

  .metric-list div {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    column-gap: 22px;
    padding: 16px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-soft);
  }

  .metric-list dt {
    margin-top: 0;
  }

  .metric-list dd b {
    font-size: 44px;
  }

  .results-photo {
    height: 340px;
  }

  .details-list div {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px 0;
  }

  .details-note {
    padding: 32px 24px 36px;
  }

  .faq-list summary {
    padding: 22px 44px 22px 0;
    font-size: 15px;
  }

  .faq-list details p {
    padding-right: 8px;
    font-size: 14px;
  }

  .notify-section {
    min-height: 88svh;
    padding: 110px 20px 130px;
  }

  .notify-lede {
    margin-bottom: 40px;
  }

  .notify-fields {
    grid-template-columns: 1fr;
  }

  .details-notice {
    flex-direction: column;
    align-items: flex-start;
  }

  .mid-cta {
    flex-direction: column;
    align-items: stretch;
    margin-top: 64px;
    padding: 28px 0;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 42px 20px 100px;
  }

  .site-footer nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .mobile-cta {
    display: block;
  }

  .legal-page main {
    padding: 40px 24px;
  }

  .legal-brand {
    margin-bottom: 52px;
  }
}

/* --------------------------------------------------------------------------
   モーション軽減・JS無効時: 演出を止め、内容と順序は同一に保つ
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.js .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce), (scripting: none) {
  .hero {
    height: auto;
  }

  .hero-stage {
    position: relative;
    height: 100svh;
  }

  .hero-act-1 {
    opacity: 1;
    transform: none;
  }

  .hero-act-2 {
    display: none;
  }

  .hero-media video {
    transform: none;
  }

  .hero-foot-line {
    display: none;
  }

  .tagline {
    height: auto;
  }

  .tagline-stage {
    position: static;
    height: auto;
    padding-top: 130px;
    padding-bottom: 130px;
  }

  .ladder {
    height: auto;
  }

  .ladder-stage {
    position: relative;
    height: auto;
    padding-top: 120px;
    padding-bottom: 120px;
  }

  .ladder-media video {
    filter: brightness(0.5) saturate(0.82);
  }

  .tw {
    opacity: 1 !important;
  }

  .marquee-track {
    animation: none;
  }

  .stage-list::after {
    transform: scaleY(1);
  }

  .stage-no::before {
    background: var(--gold);
  }

  .photo-explainer img,
  .program-photo img,
  .results-photo img {
    height: 100%;
    transform: none;
  }
}