/* ============================================================
   AMBITION ACADEMY — site.css
   design.md / motion.md 準拠。ここに無い色・書体・装飾は使わない。
   ============================================================ */

:root {
  --ink: #050506;
  --ink-raised: #101013;
  --line: #26262B;
  --paper: #F4F3F1;
  --paper-dim: #8B8B90;
  --signal: #E11B22;
  --signal-deep: #5C0C10;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-head: 'Zen Kaku Gothic New', sans-serif;
  --font-disp: 'Archivo', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --pad-left: clamp(100px, 10.5vw, 150px);
  --pad-right: clamp(40px, 3.9vw, 56px);
  --sec-gap: clamp(120px, 14vw, 220px);
}

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

html {
  scroll-behavior: auto;
  overflow-x: hidden;
  overflow-x: clip;
}

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-weight: 400;
  overflow-x: clip;
}

a { color: var(--paper); text-decoration: none; transition: color .25s; }
a:hover { color: var(--signal); }

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

::selection { background: var(--signal); color: var(--paper); }

.wrap { max-width: 1440px; margin: 0 auto; }

/* ---------- タイポグラフィ ---------- */
.display {
  font-family: var(--font-disp);
  font-weight: 800;
  font-stretch: 64%;
  letter-spacing: -0.03em;
  line-height: 0.92;
  font-size: min(9.75vw, 140px);
}
.mono {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.15em;
}

/* ---------- 共通アニメーション ---------- */
@keyframes aaFloat { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-14px) rotate(1deg); } }
@keyframes aaMarquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes aaBob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(10px); } }
@keyframes aaGlow { 0%,100% { opacity: .45; } 50% { opacity: .85; } }

/* ---------- ヘッダー ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: transparent;
  transition: background .3s, backdrop-filter .3s;
}
.site-header.is-scrolled {
  background: rgba(5, 5, 6, 0.82);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.site-header .wrap {
  padding: 20px var(--pad-right) 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand:hover { color: var(--paper); }
.brand .brand-mark { width: 26px; height: 23px; flex: 0 0 auto; }
.brand .brand-name {
  font-family: var(--font-disp);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.08em;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 13px;
}
.site-nav .nav-cta {
  border: 1px solid var(--paper);
  padding: 10px 24px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  transition: background .25s, color .25s;
}
.site-nav .nav-cta:hover { background: var(--paper); color: var(--ink); }
.header-rule {
  margin-top: 18px;
  height: 1px;
  background: var(--line);
  position: relative;
}
.nav-indicator {
  position: absolute;
  left: 0; top: 0;
  width: 110px; height: 1px;
  background: var(--signal);
  transition: left .35s cubic-bezier(.4,0,.2,1), width .35s cubic-bezier(.4,0,.2,1);
}
.menu-btn {
  display: none;
  align-items: center;
  min-height: 48px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--paper);
  background: none;
  border: none;
  cursor: pointer;
}

/* モバイルメニュー */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--ink);
  padding: 110px 19px 40px;
  flex-direction: column;
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a {
  display: flex;
  align-items: center;
  min-height: 56px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  border-top: 1px solid var(--line);
}
.mobile-menu a:last-of-type { border-bottom: 1px solid var(--line); }
.mobile-menu .menu-cta {
  margin-top: 32px;
  justify-content: center;
  background: var(--signal);
  border: none;
  font-size: 15px;
  min-height: 52px;
}
.mobile-menu .menu-cta:hover { color: var(--paper); background: var(--signal-deep); }

/* ---------- 進行インジケーター（シグネチャー） ---------- */
.progress-rail {
  position: fixed;
  left: 26px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
}
.progress-rail .rail-track {
  position: absolute;
  top: 4px; bottom: 4px;
  width: 1px;
  background: var(--line);
}
.progress-rail .rail-fill {
  position: absolute;
  top: 4px;
  width: 1px;
  height: 0;
  background: var(--signal);
}
.progress-rail .rail-node {
  position: relative;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--line);
  margin: 14px 0;
  transition: background .3s, box-shadow .3s;
}
.progress-rail .rail-node.is-lit {
  background: var(--signal);
  box-shadow: 0 0 6px rgba(225, 27, 34, 0.6);
}

/* ---------- セクション共通 ---------- */
.section {
  padding: var(--sec-gap) var(--pad-right) 0 var(--pad-left);
  position: relative;
}
.section[id] { scroll-margin-top: 90px; }
.sec-head {
  display: grid;
  grid-template-columns: 6fr 6fr;
  gap: 40px;
  align-items: start;
}
.sec-label {
  display: flex;
  align-items: baseline;
  gap: 22px;
}
.sec-label .mono { font-size: 13px; color: var(--signal); }
.sec-label .sec-label-jp {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--signal);
}
.sec-title { margin-top: 22px; }
.sec-body { padding-top: 56px; }
.sec-body h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 38px;
  line-height: 1.5;
}
.sec-body .lead {
  max-width: 36em;
  font-size: 15px;
  line-height: 2.0;
  margin-top: 32px;
}

/* ---------- ヒーロー ---------- */
.hero {
  position: relative;
  min-height: min(960px, 100svh);
  overflow: hidden;
  padding-top: 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 55% at 62% 40%, #0C0C10 0%, #050506 70%);
  animation: aaGlow 22s ease-in-out infinite;
}
.hero-word {
  position: absolute;
  right: -70px;
  bottom: -150px;
  font-family: var(--font-disp);
  font-weight: 800;
  font-stretch: 64%;
  letter-spacing: -0.03em;
  font-size: clamp(140px, 18vw, 260px);
  line-height: 1;
  color: rgba(244, 243, 241, 0.05);
  white-space: nowrap;
  pointer-events: none;
}
.hero-vertical {
  position: absolute;
  left: 58px;
  top: 180px;
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--paper-dim);
}
.hero-symbol {
  position: absolute;
  right: -30px;
  top: 10px;
  width: min(700px, 48vw);
  aspect-ratio: 215 / 240;
}
.hero-symbol .float { width: 100%; height: 100%; animation: aaFloat 8s ease-in-out infinite; }
.hero-copy {
  position: relative;
  display: flex;
  align-items: center;
  min-height: min(880px, calc(100svh - 80px));
  padding: 0 0 50px var(--pad-left);
}
.hero-copy-inner { max-width: 560px; }
.hero-eyebrow {
  font-size: 13px;
  color: var(--paper-dim);
  text-transform: uppercase;
  margin-bottom: 30px;
}
.hero-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(44px, 4.6vw, 66px);
  line-height: 1.34;
}
.hero-title .hero-line { display: block; }
.hero-title .hero-line-3 { display: flex; align-items: baseline; gap: 10px; }
.hero-title .hero-3 {
  font-family: var(--font-disp);
  font-weight: 800;
  font-stretch: 64%;
  letter-spacing: -0.03em;
  font-size: clamp(110px, 12.2vw, 175px);
  line-height: 0.8;
  transform: translateY(12px);
}
.hero-sub {
  max-width: 30em;
  font-size: 15px;
  line-height: 2.0;
  margin-top: 36px;
}
.hero-ctas { margin-top: 40px; display: flex; gap: 20px; }
.btn {
  display: inline-block;
  padding: 18px 40px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  border-radius: 0;
  transition: background .25s, color .25s, transform .25s;
}
.btn-primary { background: var(--signal); color: var(--paper); }
.btn-primary:hover { background: var(--signal-deep); color: var(--paper); transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--paper); color: var(--paper); }
.btn-ghost:hover { background: var(--paper); color: var(--ink); transform: translateY(-2px); }
.hero-scroll {
  position: absolute;
  left: var(--pad-left);
  bottom: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.hero-scroll .mono { font-size: 11px; letter-spacing: 0.25em; color: var(--paper-dim); }
.hero-scroll .scroll-line {
  width: 1px;
  height: 48px;
  background: var(--paper-dim);
  animation: aaBob 2s ease-in-out infinite;
}
/* 低い画面ではCTAと重なるため流し込みに切り替える */
@media (max-height: 840px) and (min-width: 769px) {
  .hero-scroll {
    position: static;
    margin-top: 56px;
    align-items: flex-start;
    padding-left: 8px;
  }
  .hero-scroll .scroll-line { height: 36px; }
}

/* ---------- ノード格子の帯 ---------- */
.node-band {
  height: 230px;
  background-image: radial-gradient(circle, var(--line) 1.5px, transparent 1.6px);
  background-size: 30px 30px;
  position: relative;
}
.node-band::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(5, 5, 6, 0.55) 0%, var(--ink) 96%);
}

/* ---------- マーキー（サイトで1本だけ） ---------- */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: var(--sec-gap);
  padding: 22px 0;
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: aaMarquee 50s linear infinite;
  white-space: nowrap;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  font-family: var(--font-disp);
  font-weight: 800;
  font-stretch: 64%;
  letter-spacing: -0.01em;
  font-size: 28px;
  color: var(--paper-dim);
  padding-right: 28px;
}
.marquee-track span::after {
  content: '▶';
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal);
  vertical-align: middle;
  padding-left: 28px;
}

/* ---------- 01 Services ---------- */
#services { padding-top: clamp(80px, 8vw, 120px); }
.services-counter {
  font-size: 12px;
  color: var(--paper);
  text-align: right;
  padding-bottom: 10px;
  align-self: end;
}
.services-counter .dim { color: var(--paper-dim); }
.service-list { margin-top: 90px; border-top: 1px solid var(--line); }
.service-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid var(--line);
  transition: background .3s;
}
.service-row:hover { background: var(--ink-raised); }
.service-row.is-first { padding: 44px 0; }
.service-num {
  display: flex;
  gap: 14px;
  align-items: baseline;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 14px;
}
.service-num .tri { color: var(--signal); transition: transform .3s; }
.service-row:hover .tri { transform: translateX(4px); }
.service-num .n { color: var(--paper-dim); letter-spacing: 0.15em; }
.service-main { min-width: 0; }
.service-head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  width: 100%;
  padding: 0;
  background: none;
  border: 0;
  color: inherit;
  text-align: left;
  cursor: pointer;
  font: inherit;
}
.service-head:focus-visible { outline: 2px solid var(--signal); outline-offset: 6px; }
.service-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 26px;
}
.service-row.is-first .service-name { font-size: 40px; }
.service-tag { font-size: 12px; color: var(--paper-dim); flex: 0 0 auto; }
.service-dots {
  flex: 1;
  border-bottom: 1px dotted var(--line);
  transform: translateY(-6px);
}
.service-more {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--paper-dim);
  flex: 0 0 auto;
  transition: color .3s;
}
.service-row:hover .service-more,
.service-head[aria-expanded="true"] .service-more { color: var(--signal); }

/* アコーディオン開閉 */
.service-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .45s cubic-bezier(.22,.61,.36,1);
}
.service-panel > .service-desc { overflow: hidden; }
.service-row.is-open .service-panel { grid-template-rows: 1fr; }

.service-desc {
  max-width: 620px;
  font-size: 14px;
  line-height: 1.9;
  margin-top: 0;
  padding-top: 16px;
}

@media (prefers-reduced-motion: reduce) {
  .service-panel { transition: none; }
}

/* ---------- 02 Philosophy ---------- */
.pillars {
  margin-top: 90px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}
.pillar {
  background: var(--ink-raised);
  border: 1px solid var(--line);
  padding: 36px 34px 44px;
  transition: border-color .3s;
}
.pillar:hover { border-color: var(--paper-dim); }
.pillar .mono { font-size: 13px; color: var(--paper-dim); }
.pillar h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.6;
  margin-top: 44px;
}
.pillar p { font-size: 14px; line-height: 1.9; margin-top: 20px; }

/* ---------- 03 Scope ---------- */
.scope-cols {
  margin-top: 90px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.scope-col-label { font-size: 12px; padding-bottom: 22px; }
.scope-col-label.take { color: var(--signal); }
.scope-col-label.leave { color: var(--paper-dim); }
.scope-item {
  border-top: 1px solid var(--line);
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 26px 0;
}
.scope-item:last-child { border-bottom: 1px solid var(--line); }
.scope-item .tri { font-family: var(--font-mono); font-size: 12px; }
.scope-item span:last-child { font-size: 15px; line-height: 1.9; }
.scope-take .tri { color: var(--signal); }
.scope-take span:last-child { color: var(--paper); }
.scope-leave .tri { color: var(--signal-deep); }
.scope-leave span:last-child { color: var(--paper-dim); }
.scope-close { margin-top: 70px; font-size: 15px; line-height: 2.0; color: var(--paper); }

/* ---------- 04 Message ---------- */
#message .sec-head { grid-template-columns: 5fr 7fr; gap: 60px; }
#message { overflow: hidden; }
.message-symbol {
  width: 340px;
  max-width: 100%;
  aspect-ratio: 215 / 240;
  margin-top: 110px;
  opacity: 0.35;
}
.message-body { max-width: 620px; }
.message-body h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 38px;
  line-height: 1.6;
}
.message-body p { font-size: 15px; line-height: 2.2; margin-top: 32px; }
.message-body p:first-of-type { margin-top: 56px; }
.msg-accent { color: inherit; font-weight: 700; transition: color .4s; }
.msg-accent.is-lit { color: var(--signal); }
.message-sign {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 22px;
  margin-top: 64px;
  text-align: right;
}

/* ---------- 05 Process ---------- */
.process-counter {
  padding-top: 56px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.15em;
  justify-content: flex-end;
}
.process-counter .cur { color: var(--paper); }
.process-counter .dim { color: var(--paper-dim); }
.process-grid {
  margin-top: 90px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
}
.process-step { position: relative; padding-right: 34px; }
.process-step:last-child { padding-right: 0; }
.step-track {
  display: flex;
  align-items: center;
  height: 11px;
}
.step-track .dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--paper);
  flex: 0 0 auto;
}
.step-track .dot.red { width: 11px; height: 11px; background: var(--signal); }
.step-track .edge { flex: 1; height: 1px; background: var(--line); transform-origin: left center; }
.process-step .mono { font-size: 13px; color: var(--paper-dim); margin-top: 30px; display: block; }
.process-step h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.6;
  margin-top: 14px;
}
.process-step p { font-size: 14px; line-height: 1.9; margin-top: 18px; }

/* ---------- 06 About ---------- */
.about-points { margin-top: 48px; display: flex; flex-direction: column; }
.about-point {
  border-top: 1px solid var(--line);
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 20px 0;
}
.about-point:last-child { border-bottom: 1px solid var(--line); }
.about-point .tri { font-family: var(--font-mono); font-size: 12px; color: var(--signal); }
.about-point span:last-child { font-size: 15px; line-height: 1.9; }
.about-cta { margin-top: 48px; }
.company-table-wrap {
  margin-top: 120px;
  display: grid;
  grid-template-columns: 6fr 6fr;
  gap: 40px;
}
.company-table { min-width: 0; }
.company-row {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 160px 1fr;
  padding: 22px 0;
  font-size: 14px;
}
.company-row:last-child { border-bottom: 1px solid var(--line); }
.company-row dt { color: var(--paper-dim); }
.company-row dd { color: var(--paper); }

/* ---------- 07 Contact ---------- */
.contact-form {
  padding-top: 56px;
  display: flex;
  flex-direction: column;
  gap: 44px;
  position: relative;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px 32px;
}
.field { display: flex; flex-direction: column; gap: 12px; }
.field > span { font-size: 13px; color: var(--paper-dim); }
.field .req { color: var(--signal); }
.field input,
.field textarea,
.field select {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 10px 2px;
  min-height: 48px;
  border-radius: 0;
  outline: none;
  transition: border-color .25s;
  width: 100%;
}
.field select {
  background: var(--ink-raised);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}
.field textarea { line-height: 1.9; resize: vertical; min-height: 140px; }
.field input:focus,
.field textarea:focus,
.field select:focus { border-bottom-color: var(--signal); }
.field input:focus-visible,
.field textarea:focus-visible,
.field select:focus-visible { outline: none; border-bottom-color: var(--signal); }
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  opacity: 0;
}
.submit-btn {
  background: var(--signal);
  color: var(--paper);
  border: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  padding: 18px 56px;
  min-height: 52px;
  cursor: pointer;
  border-radius: 0;
  transition: background .3s, transform .25s;
}
.submit-btn:hover { background: var(--signal-deep); transform: translateY(-2px); }
.submit-btn:disabled { opacity: 0.55; cursor: default; transform: none; }
.form-note {
  font-size: 12px;
  line-height: 1.9;
  color: var(--paper-dim);
  margin-top: 24px;
}
.form-result {
  font-size: 14px;
  line-height: 1.9;
  margin-top: 20px;
  opacity: 0;
  transition: opacity .3s;
}
.form-result.is-visible { opacity: 1; }
.form-result.ok { color: var(--paper); }
.form-result.ng { color: var(--signal); }

/* ---------- フッター ---------- */
.site-footer {
  margin-top: var(--sec-gap);
  border-top: 1px solid var(--line);
}
.site-footer .wrap { padding: 90px var(--pad-right) 0 var(--pad-left); }
.footer-cols {
  display: grid;
  grid-template-columns: 6fr 3fr 3fr;
  gap: 40px;
  align-items: start;
}
.footer-catch {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 26px;
  line-height: 1.6;
}
.footer-desc { font-size: 14px; line-height: 1.9; color: var(--paper-dim); margin-top: 20px; }
.footer-nav { display: flex; flex-direction: column; gap: 16px; font-size: 14px; }
.footer-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--paper-dim);
}
.footer-bottom {
  margin-top: 110px;
  border-top: 1px solid var(--line);
  padding: 26px 0;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-copy {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--paper-dim);
}
.footer-legal { display: flex; gap: 32px; }
.footer-legal a { font-size: 12px; color: var(--paper-dim); }
.footer-legal a:hover { color: var(--paper); }

/* ---------- 下層（privacy / terms） ---------- */
.legal-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 220px 40px 0;
}
.legal-eyebrow { font-size: 13px; color: var(--signal); }
.legal-main h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 40px;
  line-height: 1.5;
  margin-top: 26px;
}
.legal-en {
  font-family: var(--font-disp);
  font-weight: 800;
  font-stretch: 64%;
  letter-spacing: 0.02em;
  font-size: 15px;
  color: var(--paper-dim);
  margin-top: 14px;
}
.legal-updated {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--paper-dim);
  margin-top: 20px;
}
.legal-intro {
  margin-top: 64px;
  background: var(--ink-raised);
  border: 1px solid var(--line);
  padding: 22px 26px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--paper-dim);
}
.legal-secs { margin-top: 56px; }
.legal-sec { border-top: 1px solid var(--line); padding: 34px 0; }
.legal-sec:last-child { border-bottom: 1px solid var(--line); }
.legal-sec-head {
  display: flex;
  gap: 20px;
  align-items: baseline;
}
.legal-sec-head .num {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--paper-dim);
}
.legal-sec-head h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.6;
}
.legal-sec p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--paper);
  margin: 16px 0 0 44px;
}
.legal-sec ul { margin: 16px 0 0 44px; list-style: none; }
.legal-sec li {
  position: relative;
  font-size: 14px;
  line-height: 1.9;
  padding-left: 18px;
  margin-top: 8px;
}
.legal-sec li::before {
  content: '';
  position: absolute;
  left: 0; top: 12px;
  width: 5px; height: 5px;
  background: var(--signal);
}
.legal-contact {
  margin-top: 56px;
  background: var(--ink-raised);
  border: 1px solid var(--line);
  padding: 22px 26px;
}
.legal-contact h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
}
.legal-contact p { font-size: 14px; line-height: 1.9; color: var(--paper-dim); margin-top: 12px; }
.legal-dates {
  margin-top: 56px;
  padding-bottom: 140px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--paper-dim);
  text-align: right;
}
.legal-footer { border-top: 1px solid var(--line); }
.legal-footer .wrap {
  padding: 40px var(--pad-right);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
}

/* ---------- ページ遷移レイヤー（JSが生成） ---------- */
.page-veil {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--ink);
  transform: translateY(100%);
  pointer-events: none;
}

/* ============================================================
   レスポンシブ（768px以下）— 縮小ではなく組み替え
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --pad-left: 34px;
    --pad-right: 19px;
    --sec-gap: 120px;
  }

  .display { font-size: 13vw; }

  /* ヘッダー：ロゴとMENUのみ */
  .site-header .wrap { padding: 14px var(--pad-right) 0; }
  .site-nav { display: none; }
  .menu-btn { display: flex; }
  .brand .brand-mark { width: 24px; height: 21px; }
  .brand .brand-name { font-size: 13px; }
  .header-rule { margin-top: 12px; }
  .nav-indicator { width: 64px !important; left: 0 !important; }

  /* 進行インジケーター：スマホでも残す */
  .progress-rail { left: 8px; }

  /* ヒーロー */
  .hero { min-height: 0; padding-top: 96px; }
  .hero-copy {
    display: block;
    min-height: 0;
    padding: 24px var(--pad-right) 56px var(--pad-left);
  }
  .hero-copy-inner { max-width: none; }
  .hero-word, .hero-vertical { display: none; }
  .hero-symbol {
    position: static;
    width: min(230px, 62vw);
    margin: 40px auto 0;
  }
  .hero-title { font-size: clamp(28px, 8vw, 48px); line-height: 1.4; }
  .hero-title .hero-3 { font-size: clamp(64px, 22.4vw, 84px); transform: translateY(6px); }
  .hero-sub { margin-top: 40px; }
  .hero-ctas { margin-top: 32px; flex-direction: column; gap: 14px; }
  .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 20px;
  }
  .hero-scroll { position: static; margin-top: 48px; }
  .hero-scroll .mono { display: none; }
  .hero-scroll .scroll-line { height: 44px; }

  /* ノード帯：画面端から溢れさせる */
  .node-band {
    height: 170px;
    margin: 0 -20px;
    background-size: 26px 26px;
  }

  .marquee { padding: 16px 0; }
  .marquee-track span { font-size: 20px; }

  /* セクション：非対称グリッド解除 */
  .sec-head, #message .sec-head { grid-template-columns: 1fr; gap: 0; }
  .sec-label { gap: 16px; }
  .sec-label .mono { font-size: 12px; }
  .sec-label .sec-label-jp { font-size: 14px; }
  .sec-title { margin-top: 18px; }
  .sec-body { padding-top: 44px; }
  .sec-body h2 { font-size: 24px; line-height: 1.6; }
  .sec-body .lead { font-size: 15px; line-height: 2.0; margin-top: 24px; }

  /* Services */
  .services-counter { text-align: left; margin-top: 26px; }
  .service-list { margin-top: 44px; }
  .service-row { grid-template-columns: 1fr; gap: 0; padding: 22px 0; }
  .service-row.is-first { padding: 22px 0; }
  .service-num { display: none; }
  .service-head { gap: 12px; }
  .service-head::before {
    content: '▶';
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--signal);
  }
  .service-name, .service-row.is-first .service-name { font-size: 18px; flex: 1; }
  .service-tag, .service-dots { display: none; }
  .service-more { font-size: 10px; }
  .service-desc { margin: 0 0 0 24px; padding-top: 14px; font-size: 14px; line-height: 2.0; }
  .service-head { min-height: 48px; align-items: center; }

  /* Philosophy */
  .pillars { margin-top: 48px; grid-template-columns: 1fr; gap: 16px; }
  .pillar { padding: 28px 24px 34px; }
  .pillar h3 { font-size: 19px; margin-top: 26px; }
  .pillar p { line-height: 2.0; margin-top: 16px; }

  /* Scope */
  .scope-cols { margin-top: 48px; grid-template-columns: 1fr; gap: 56px; }
  .scope-item { padding: 20px 0; gap: 12px; }
  .scope-item span:last-child { font-size: 14px; line-height: 2.0; }
  .scope-close { margin-top: 44px; }

  /* Message：右寄せカラムを維持（例外） */
  .message-align {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
  }
  .message-body { max-width: 300px; width: 100%; }
  .message-body h2 { font-size: 26px; }
  .message-body p { font-size: 14px; margin-top: 24px; }
  .message-body p:first-of-type { margin-top: 36px; }
  .message-sign { font-size: 19px; margin-top: 44px; text-align: right; }
  .message-symbol { width: 180px; margin-top: 56px; }

  /* Process：縦組み */
  .process-counter { justify-content: flex-start; padding-top: 26px; }
  .process-grid { margin-top: 48px; grid-template-columns: 1fr; }
  .process-step {
    display: grid;
    grid-template-columns: 24px 1fr;
    gap: 0 20px;
    padding-right: 0;
    padding-bottom: 48px;
  }
  .process-step:last-child { padding-bottom: 0; }
  .step-track {
    grid-row: 1 / 5;
    flex-direction: column;
    height: auto;
    align-items: center;
  }
  .step-track .dot { margin-top: 4px; }
  .step-track .edge {
    width: 1px;
    height: auto;
    flex: 1;
    transform-origin: center top;
  }
  .process-step:last-child .edge { display: none; }
  .process-step .mono { grid-column: 2; margin-top: 0; font-size: 12px; }
  .process-step h3 { grid-column: 2; font-size: 19px; margin-top: 10px; }
  .process-step p { grid-column: 2; line-height: 2.0; margin-top: 14px; }

  /* About */
  .about-points { margin-top: 40px; }
  .about-point { padding: 18px 0; gap: 12px; min-height: 48px; }
  .about-point span:last-child { font-size: 14px; line-height: 2.0; }
  .about-cta { margin-top: 40px; width: 100%; }
  .company-table-wrap { margin-top: 80px; grid-template-columns: 1fr; gap: 0; }
  .company-row { grid-template-columns: 1fr; padding: 18px 0; gap: 6px; }
  .company-row dt { font-size: 12px; }

  /* Contact */
  .contact-form { padding-top: 48px; gap: 36px; }
  .form-grid { grid-template-columns: 1fr; gap: 36px; }
  .submit-btn { width: 100%; }
  .form-note { margin-top: 20px; }

  /* フッター */
  .site-footer .wrap { padding: 64px var(--pad-right) 0 var(--pad-left); }
  .footer-cols { grid-template-columns: 1fr; gap: 0; }
  .footer-catch { font-size: 20px; }
  .footer-desc { margin-top: 16px; }
  .footer-nav { margin-top: 44px; gap: 0; }
  .footer-nav a {
    display: flex;
    align-items: center;
    min-height: 48px;
    border-top: 1px solid var(--line);
  }
  .footer-nav a:last-child { border-bottom: 1px solid var(--line); }
  .footer-info { margin-top: 40px; gap: 10px; font-size: 13px; line-height: 2.0; }
  .footer-bottom {
    margin-top: 56px;
    padding: 22px 0 32px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .footer-legal { gap: 24px; }
  .footer-legal a { display: flex; align-items: center; min-height: 44px; }
  .footer-copy { font-size: 10px; letter-spacing: 0.05em; }

  /* 下層 */
  .legal-main { padding: 160px 19px 0; }
  .legal-main h1 { font-size: 28px; margin-top: 20px; }
  .legal-en { font-size: 13px; margin-top: 12px; }
  .legal-intro { margin-top: 44px; padding: 18px 20px; font-size: 13px; }
  .legal-secs { margin-top: 40px; }
  .legal-sec { padding: 26px 0; }
  .legal-sec-head { gap: 14px; }
  .legal-sec-head .num { font-size: 11px; }
  .legal-sec-head h2 { font-size: 16px; }
  .legal-sec p, .legal-sec ul { margin-left: 30px; }
  .legal-sec p, .legal-sec li { font-size: 13px; }
  .legal-dates { margin-top: 40px; padding-bottom: 80px; font-size: 12px; }
  .legal-footer .wrap {
    padding: 26px 19px 32px;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
}

/* 375px での破綻防止 */
@media (max-width: 400px) {
  .hero-title .hero-3 { font-size: 72px; }
}

/* ============================================================
   prefers-reduced-motion — 全アニメーション無効
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .marquee-track { animation: none; }
  .hero-symbol .float, .hero-bg, .hero-scroll .scroll-line { animation: none; }
}