/* ============================================================
   NEXUS — corporate site
   ============================================================ */

:root {
  --bg: #F6F5F1;                           /* warm off-white */
  --bg-2: #EFEDE6;                         /* slightly deeper tone for alt sections */
  --bg-card: #FFFFFF;
  --ink: #0E1116;                          /* near-black ink */
  --ink-2: #474C56;                        /* secondary text */
  --ink-3: #6B7280;                        /* tertiary / meta text — WCAG AA 4.54:1 on white */
  --line: rgba(14,17,22,0.10);
  --line-2: rgba(14,17,22,0.22);
  --accent: oklch(0.55 0.17 235);          /* deep blue */
  --accent-2: oklch(0.62 0.14 195);        /* teal secondary */
  --warn: oklch(0.70 0.16 45);             /* amber (rarely used) */
  --max: 1440px;
  --pad-x: clamp(20px, 4vw, 72px);

  --h-xxl: clamp(52px, 8vw, 128px);
  --h-xl:  clamp(40px, 5.4vw, 84px);
  --h-l:   clamp(28px, 3.2vw, 48px);
  --h-m:   clamp(22px, 2.2vw, 30px);

  --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-jp-serif: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  --font-latin: "Space Grotesk", "Inter", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin:0; padding:0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-jp);
  font-feature-settings: "palt" 1;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  cursor: none;
}
img, svg { display:block; max-width:100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; background: none; border: none; color: inherit; cursor: none; }
input, textarea { font-family: inherit; color: inherit; }
ul, ol { list-style: none; margin:0; padding:0; }

/* Selection */
::selection { background: var(--accent); color: var(--bg); }

/* ============================================================
   Cursor
   ============================================================ */
.cursor, .cursor-dot {
  position: fixed; top:0; left:0;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  mix-blend-mode: multiply;
}
.cursor {
  width: 36px; height: 36px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  transition: width .3s ease, height .3s ease, opacity .2s ease, border-color .2s ease;
}
.cursor-dot {
  width: 4px; height: 4px;
  background: var(--ink);
  border-radius: 50%;
}
.cursor.is-link { width: 58px; height: 58px; }
.cursor.is-cta  { width: 72px; height: 72px; background: rgba(14,17,22,0.08); border-color: transparent; }
.cursor.is-card { width: 110px; height: 110px; }
.cursor.is-card::after {
  content: "VIEW";
  position:absolute; inset:0;
  display:grid; place-items:center;
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .15em;
  color: var(--ink);
}
@media (hover:none) {
  body { cursor: auto; }
  .cursor, .cursor-dot { display: none; }
  a, button, [data-cursor] { cursor: pointer !important; }
}

/* ============================================================
   Loader
   ============================================================ */
.loader {
  position: fixed; inset: 0;
  background: var(--bg);
  z-index: 9999;
  display: grid; place-items: center;
  transition: opacity .6s ease, visibility .6s ease;
}
.loader.is-done { opacity: 0; visibility: hidden; }
.loader-inner { width: min(560px, 80vw); }
.loader-counter {
  display:flex; align-items: baseline; gap: 4px;
  font-family: var(--font-latin);
  font-size: clamp(72px, 12vw, 168px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 0.9;
}
.loader-counter em { font-family: var(--font-mono); font-size: 16px; font-style: normal; color: var(--ink-3); }
.loader-bar {
  margin-top: 24px;
  height: 1px;
  background: var(--line);
  position: relative; overflow: hidden;
}
.loader-bar-fill {
  position:absolute; inset: 0 100% 0 0;
  background: var(--accent);
  transition: right .1s linear;
}
.loader-label {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--ink-3);
}

/* ============================================================
   Top bar
   ============================================================ */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 18px var(--pad-x);
  transition: background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  border-bottom: 1px solid transparent;
}
.topbar.is-scrolled {
  background: rgba(246,245,241,0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-color: var(--line);
}
.brand {
  display: flex; align-items: center; gap: 12px;
  color: var(--ink);
}
.brand svg { color: var(--accent); }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-mark {
  font-family: var(--font-latin);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.04em;
}
.brand-sub {
  font-size: 9px;
  color: var(--ink-3);
  margin-top: 4px;
  letter-spacing: 0.18em;
}

.topnav {
  display: flex; gap: 28px;
  justify-self: center;
}
.nav-item {
  display: inline-flex; align-items: baseline; gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  position: relative;
  padding: 4px 0;
  transition: color .2s;
}
.nav-item em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 9px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
}
.nav-item::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -4px;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s ease;
}
.nav-item:hover { color: var(--ink); }
.nav-item:hover::after { transform: scaleX(1); }

.topbar-right { display: flex; align-items: center; gap: 18px; }
.lang { display: flex; gap: 6px; font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); }
.lang-btn { font-family: inherit; font-size: inherit; color: inherit; padding: 0; }
.lang-btn.active { color: var(--ink); }
.cta-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--line-2);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  transition: background .2s, border-color .2s, color .2s;
}
.cta-pill:hover { background: var(--ink); border-color: var(--ink); color: var(--bg); }

.burger {
  width: 40px; height: 40px;
  display: none;
  flex-direction: column; align-items: flex-end; justify-content: center;
  gap: 5px;
  padding: 0;
}
.burger span {
  display:block; width: 22px; height: 1px; background: var(--ink);
  transition: transform .3s, opacity .2s, width .3s;
}
.burger span:nth-child(2) { width: 14px; }
.burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); width: 22px; }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); width: 22px; }

/* ============================================================
   Mega menu
   ============================================================ */
.mega {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg-2);
  z-index: 800;
  padding: 120px var(--pad-x) 40px;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .7s cubic-bezier(.76,0,.24,1);
  overflow: auto;
}
.mega.is-open {
  clip-path: inset(0 0 0 0);
}
.mega-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 80px;
  height: 100%;
}
.mega-idx-label, .mega-sub-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--ink-3);
  margin-bottom: 28px;
}
.mega-list li { border-top: 1px solid var(--line); }
.mega-list li:last-child { border-bottom: 1px solid var(--line); }
.mega-list a {
  display: grid;
  grid-template-columns: 60px 1fr 1fr;
  align-items: baseline;
  gap: 24px;
  padding: 22px 0;
  transition: padding .3s ease, color .3s;
}
.mega-list a:hover { padding-left: 20px; color: var(--accent); }
.mega-list em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 12px;
  color: var(--ink-3);
}
.mega-list span {
  font-family: var(--font-latin);
  font-size: clamp(32px, 4vw, 56px);
  font-weight: 400;
  letter-spacing: -0.02em;
}
.mega-list i {
  font-family: var(--font-jp);
  font-style: normal;
  font-size: 13px;
  color: var(--ink-2);
  text-align: right;
}
.mega-sub-list li + li { margin-top: 18px; }
.mega-sub-list a {
  display: flex; flex-direction: column;
  padding: 14px 16px;
  border: 1px solid var(--line);
  transition: border-color .2s, background .2s;
}
.mega-sub-list a:hover { border-color: var(--accent); background: rgba(14,17,22,0.03); }
.mega-sub-list b {
  font-family: var(--font-latin);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 0.02em;
}
.mega-sub-list span {
  font-size: 11px;
  color: var(--ink-3);
  margin-top: 6px;
}

.mega-meta {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.mega-meta-k {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: .15em;
}
.mega-meta-v {
  font-size: 12px;
  color: var(--ink-2);
  margin-top: 6px;
  line-height: 1.5;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px var(--pad-x) 120px;
  overflow: hidden;
}
#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: 0.9;
}
.hero-grid {
  position: absolute; inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(to right, rgba(14,17,22,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14,17,22,0.06) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: radial-gradient(ellipse at 50% 60%, #000 40%, transparent 85%);
}
.hero-vert {
  position: absolute;
  right: var(--pad-x);
  top: 160px;
  writing-mode: vertical-rl;
  font-family: var(--font-jp-serif);
  font-size: 13px;
  letter-spacing: 0.35em;
  color: var(--ink-2);
  z-index: 3;
}
.hero-meta {
  position: absolute;
  left: var(--pad-x);
  bottom: 140px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
}
.hero-meta-row { display: flex; gap: 12px; }
.hero-meta em { color: var(--ink-2); font-style: normal; width: 40px; }

.hero-copy {
  position: relative;
  z-index: 3;
  max-width: min(900px, 72vw);
  padding-top: 80px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-2);
  margin-bottom: 32px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 100px;
  backdrop-filter: blur(10px);
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-h1 {
  font-family: var(--font-latin);
  font-size: var(--h-xxl);
  line-height: 0.95;
  font-weight: 400;
  letter-spacing: -0.035em;
  margin: 0 0 36px;
}
.hero-h1 .line { display:block; overflow: hidden; }
.hero-h1 .fill {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1s cubic-bezier(.19,1,.22,1);
}
.hero-h1 i { font-style: italic; font-family: var(--font-jp-serif); font-weight: 400; }

/* Japanese hero — switch to JP stack, heavier weight, tighter rhythm */
.hero-h1--jp {
  font-family: var(--font-jp);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.0;
  font-feature-settings: "palt" 1;
  margin: 0 0 40px;
}
.hero-h1--jp .line { overflow: hidden; }
.hero-h1--jp .line--sm {
  font-size: clamp(22px, 2.6vw, 38px);
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: 0.02em;
  margin-bottom: 14px;
}
.hero-h1--jp .line--lg {
  font-size: clamp(72px, 11vw, 180px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.95;
}
.hero-h1--jp .fill {
  padding: 0.08em 0 0.04em;
}
/* Right-to-left slide-in for the small line */
.hero-h1--jp .fill--slide {
  transform: translateX(60vw);
  opacity: 0;
  transition:
    transform 1.1s cubic-bezier(.19,1,.22,1) .15s,
    opacity .6s ease .15s;
}
.is-ready .hero-h1--jp .fill--slide {
  transform: translateX(0);
  opacity: 1;
}
.hero-h1--jp i {
  font-style: normal;
  font-family: inherit;
  font-weight: inherit;
  color: var(--ink);
  letter-spacing: inherit;
  padding: 0 0.02em;
  background-image: linear-gradient(to top, var(--accent) 0.14em, transparent 0.14em);
  background-repeat: no-repeat;
  background-position: 0 92%;
}
.is-ready .hero-h1 .fill { transform: translateY(0); }
.is-ready .hero-h1 .line:nth-child(2) .fill { transition-delay: .08s; }
.is-ready .hero-h1 .line:nth-child(3) .fill { transition-delay: .16s; }
.is-ready .hero-h1 .line:nth-child(4) .fill { transition-delay: .24s; }

.hero-sub {
  font-size: 15px;
  line-height: 2;
  color: var(--ink-2);
  margin: 0 0 40px;
  max-width: 460px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .8s ease .5s, transform .8s ease .5s;
}
.is-ready .hero-sub { opacity: 1; transform: none; }
.hero-actions {
  display: flex; gap: 14px; flex-wrap: wrap;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .8s ease .7s, transform .8s ease .7s;
}
.is-ready .hero-actions { opacity: 1; transform: none; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid transparent;
  border-radius: 100px;
  transition: transform .2s, background .2s, color .2s, border-color .2s;
}
.btn svg { transition: transform .2s; }
.btn:hover svg { transform: translateX(4px); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); }
.btn-ghost { border-color: var(--line-2); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); background: rgba(14,17,22,0.05); }
.btn-lg { padding: 18px 28px; font-size: 14px; }

.hero-scroll {
  position: absolute;
  right: var(--pad-x);
  bottom: 120px;
  z-index: 3;
  display: flex; flex-direction: column; align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--ink-3);
}
.hero-scroll-line {
  width: 1px; height: 64px;
  background: var(--line);
  position: relative; overflow: hidden;
}
.hero-scroll-line i {
  position: absolute; left: 0; right: 0;
  height: 30px;
  background: var(--accent);
  animation: scroll-indicator 2s ease-in-out infinite;
}
@keyframes scroll-indicator {
  0% { top: -30px; }
  100% { top: 100%; }
}

.hero-ticker {
  position: absolute;
  left: 0; right: 0;
  bottom: 30px;
  z-index: 3;
  overflow: hidden;
  pointer-events: none;
}
.ticker-track {
  display: flex; gap: 40px;
  font-family: var(--font-latin);
  font-weight: 400;
  font-size: clamp(22px, 2.6vw, 36px);
  white-space: nowrap;
  animation: ticker 30s linear infinite;
  color: var(--ink-3);
}
.ticker-track i {
  font-style: normal;
  color: var(--accent);
  opacity: 0.7;
}
@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================================
   Section primitives
   ============================================================ */
.section-head {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 0 60px;
}
.section-head--row {
  display: flex; justify-content: space-between; gap: 48px; align-items: flex-end;
  flex-wrap: wrap;
}
.section-no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 20px;
}
.section-no--light { color: var(--ink-3); }
.section-h2 {
  font-family: var(--font-jp);
  font-size: var(--h-l);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.4;
  margin: 0;
}
.section-body {
  font-size: 14px; line-height: 2; color: var(--ink-2);
  max-width: 480px;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  padding: 160px var(--pad-x);
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
}
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-lede {
  font-family: var(--font-jp-serif);
  font-size: 18px;
  line-height: 2.2;
  color: var(--ink);
  margin: 0;
  max-width: 540px;
}
.about-lede em {
  font-style: italic;
  color: var(--accent);
  padding: 0 4px;
}
.kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.kpi {
  background: var(--bg);
  padding: 36px 28px;
  display: flex; flex-direction: column; gap: 14px;
  transition: background .2s;
}
.kpi:hover { background: var(--bg-card); }
.kpi-k {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.15em;
}
.kpi-v {
  font-family: var(--font-latin);
  font-size: clamp(48px, 5vw, 80px);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 0.9;
  display: flex; align-items: baseline; gap: 4px;
}
.kpi-v em {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  font-style: normal;
}
.kpi-l { font-size: 12px; color: var(--ink-2); }

/* ============================================================
   BUSINESS
   ============================================================ */
.business {
  padding: 160px 0;
  position: relative;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.business .section-head {
  padding-left: var(--pad-x); padding-right: var(--pad-x);
}
.biz-rail-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.biz-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(380px, 1fr);
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 24px;
  scrollbar-width: none;
}
.biz-rail::-webkit-scrollbar { display: none; }
.biz-card {
  scroll-snap-align: start;
  padding: 28px;
  border: 1px solid var(--line);
  background: var(--bg);
  display: flex; flex-direction: column;
  min-height: 580px;
  position: relative;
  overflow: hidden;
  transition: border-color .3s, transform .3s;
}
.biz-card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 100% 0%, rgba(30,80,180,0.07), transparent 55%);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.biz-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.biz-card:hover::before { opacity: 1; }
.biz-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--accent);
}
.biz-label {
  font-family: var(--font-latin);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  margin-top: 4px;
}
.biz-art {
  margin: 30px -8px 24px;
  height: 180px;
  color: var(--accent);
  opacity: 0.8;
}
.biz-title {
  font-size: 28px;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.3;
  margin: 0 0 16px;
}
.biz-desc {
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-2);
  margin: 0 0 20px;
  flex: 1;
}
.biz-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 20px;
}
.biz-tags li {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 100px;
  color: var(--ink-2);
}
.biz-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px;
  color: var(--accent);
  align-self: flex-start;
}
.biz-link i { font-style: normal; transition: transform .2s; }
.biz-link:hover i { transform: translateX(4px); }

.biz-rail-ctrl {
  margin-top: 28px;
  display: flex; align-items: center; gap: 20px;
  justify-content: space-between;
}
.biz-rail-progress {
  flex: 1;
  height: 1px; background: var(--line);
  position: relative;
}
.biz-rail-progress i {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 25%;
  background: var(--accent);
  transition: width .2s, left .2s;
}
.biz-rail-buttons { display: flex; gap: 10px; }
.rail-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  display: grid; place-items: center;
  transition: background .2s, color .2s, border-color .2s;
}
.rail-btn:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }

/* ============================================================
   MESSAGE
   ============================================================ */
.message {
  padding: 160px var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: center;
}
.msg-parallax {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
  border: 1px solid var(--line);
}
.msg-placeholder {
  position: absolute; inset: 0;
}
/* Task 3 で <picture> 化により不要化。実画像運用が安定したら削除 */
/*
.ph-stripes {
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(45deg,
      rgba(14,17,22,0.04) 0 12px,
      transparent 12px 24px),
    linear-gradient(135deg, rgba(60,120,200,0.10), rgba(60,180,180,0.05));
}
.ph-label {
  position: absolute; left: 16px; bottom: 16px;
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.1em;
  color: var(--ink-3);
}
*/
.msg-h2 {
  font-family: var(--font-jp);
  font-size: var(--h-l);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.4;
  margin: 0 0 28px;
}
.msg-body {
  font-family: var(--font-jp-serif);
  font-size: 16px;
  line-height: 2.2;
  color: var(--ink-2);
  margin: 0 0 32px;
}
.msg-sign { display: flex; flex-direction: column; gap: 4px; margin-bottom: 28px; }
.msg-sign-title {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.18em; color: var(--ink-3);
}
.msg-sign-name {
  font-size: 18px;
  font-weight: 500;
}
.msg-more {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--accent);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--accent);
}
.msg-more i { font-style: normal; transition: transform .2s; }
.msg-more:hover i { transform: translateX(4px); }

/* ============================================================
   WORKS
   ============================================================ */
.works {
  padding: 160px var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
}
.works-filter, .news-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 100px;
  transition: background .2s, color .2s, border-color .2s;
}
.chip:hover { border-color: var(--ink-2); color: var(--ink); }
.chip.active { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.works-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 40px;
}
.work {
  grid-column: span 6;
  display: block;
  transition: opacity .3s;
}
.work:nth-child(even) { margin-top: 80px; }
.work.is-hidden { display: none; }
.work-media {
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform .6s ease;
}
.work-media--a { --h1: 190; --h2: 220; }
.work-media--b { --h1: 30;  --h2: 60; }
.work-media--c { --h1: 270; --h2: 300; }
.work-media--d { --h1: 340; --h2: 20; }
/* Task 3 で <picture> 化により不要化。実画像運用が安定したら削除 */
/*
.work-media .ph-stripes {
  background:
    repeating-linear-gradient(45deg,
      rgba(14,17,22,0.04) 0 14px,
      transparent 14px 28px),
    linear-gradient(135deg,
      oklch(0.3 0.1 var(--h1)) 0%,
      oklch(0.18 0.06 var(--h2)) 100%);
}
*/
.work:hover .work-media { transform: scale(1.02); }
.work-meta { padding: 24px 4px 0; }
.work-meta-row {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin-bottom: 16px;
}
.work-cat { color: var(--accent); }
.work-title {
  font-size: 24px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.01em;
  margin: 0 0 12px;
  transition: color .2s;
}
.work:hover .work-title { color: var(--accent); }
.work-desc {
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-2);
  margin: 0;
}
.works-more {
  display: inline-flex; align-items: center; gap: 10px;
  margin-top: 80px;
  font-family: var(--font-latin);
  font-size: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ink);
  transition: color .2s, border-color .2s;
}
.works-more i { font-style: normal; transition: transform .2s; }
.works-more:hover { color: var(--accent); border-color: var(--accent); }
.works-more:hover i { transform: translateX(6px); }

/* ============================================================
   NEWS
   ============================================================ */
.news {
  padding: 160px var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
}
.news-list { border-top: 1px solid var(--line); }
.news-item {
  display: grid;
  grid-template-columns: 150px 120px 1fr 40px;
  align-items: center;
  gap: 24px;
  padding: 24px 4px;
  border-bottom: 1px solid var(--line);
  transition: padding .3s, background .3s;
}
.news-item:hover { padding-left: 20px; background: rgba(14,17,22,0.025); }
.news-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.05em;
}
.news-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--accent);
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  justify-self: start;
}
.news-title {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.6;
}
.news-arrow {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink-3);
  text-align: right;
  transition: transform .2s, color .2s;
}
.news-item:hover .news-arrow { color: var(--accent); transform: translateX(4px); }

/* ============================================================
   CAREERS
   ============================================================ */
.careers {
  position: relative;
  padding: 200px var(--pad-x) 160px;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.careers-bigword {
  position: absolute;
  left: -2vw; right: -2vw; top: 40px;
  font-family: var(--font-latin);
  font-weight: 400;
  font-size: clamp(160px, 30vw, 520px);
  color: rgba(14,17,22,0.04);
  letter-spacing: -0.04em;
  line-height: 0.85;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  will-change: transform;
}
.careers-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  margin: 0 auto;
}
.careers-h2 {
  font-family: var(--font-jp);
  font-size: var(--h-xl);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.25;
  margin: 0 0 80px;
}
.careers-h2 .line { display: block; overflow: hidden; }
.careers-h2 .fill {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1s cubic-bezier(.19,1,.22,1);
}
.in-view .careers-h2 .fill { transform: translateY(0); }
.in-view .careers-h2 .line:nth-child(2) .fill { transition-delay: .08s; }
.in-view .careers-h2 .line:nth-child(3) .fill { transition-delay: .16s; }

.jobs {
  border-top: 1px solid var(--line);
  margin-bottom: 60px;
}
.job {
  display: grid;
  grid-template-columns: 60px 180px 1fr 220px 40px;
  align-items: center;
  gap: 24px;
  padding: 28px 4px;
  border-bottom: 1px solid var(--line);
  transition: padding .3s, background .3s;
}
.job:hover { padding-left: 24px; background: rgba(14,17,22,0.03); }
.job-no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
}
.job-dept {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.job-title {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.job-type {
  font-size: 12px;
  color: var(--ink-2);
}
.job-arrow {
  font-size: 20px;
  color: var(--ink-3);
  text-align: right;
  transition: color .2s, transform .2s;
}
.job:hover .job-arrow { color: var(--accent); transform: translate(4px, -4px); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  padding: 160px var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
}
.contact-h2 {
  font-family: var(--font-jp);
  font-size: var(--h-l);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.4;
  margin: 20px 0 24px;
}
.contact-body {
  font-size: 14px;
  line-height: 2;
  color: var(--ink-2);
  margin: 0 0 40px;
}
.contact-channels { display: flex; flex-direction: column; gap: 20px; }
.contact-channels li {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.contact-channels em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  padding-top: 3px;
}
.contact-channels span { font-size: 14px; }

.contact-form {
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(14,17,22,0.03), 0 20px 40px -20px rgba(14,17,22,0.08);
  position: relative;
  overflow: hidden;
}
.contact-form.sent .form-sent {
  transform: none;
  opacity: 1;
}
.form-sent {
  position: absolute;
  inset: 0;
  background: var(--bg-card);
  display: grid; place-items: center;
  font-size: 16px;
  color: var(--accent);
  opacity: 0;
  transform: translateY(100%);
  transition: transform .5s ease, opacity .5s ease;
}
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.field-row .field { margin-bottom: 20px; }
.field label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
}
.field input, .field textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line-2);
  padding: 10px 2px;
  font-size: 14px;
  resize: none;
  transition: border-color .2s;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-3); }
.chips-select {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px;
}
.chips-select label {
  position: relative;
  padding: 8px 14px;
  border: 1px solid var(--line-2);
  border-radius: 100px;
  font-size: 12px;
  color: var(--ink-2);
  transition: background .2s, color .2s, border-color .2s;
}
.chips-select input {
  position: absolute;
  opacity: 0;
  inset: 0;
}
.chips-select label:has(input:checked) {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

/* ============================================================
   FOOTER
   ============================================================ */
.foot {
  padding: 80px var(--pad-x) 30px;
  border-top: 1px solid var(--line);
  background: var(--bg-2);
}
.foot-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--line);
}
.foot-mark {
  font-family: var(--font-latin);
  font-size: clamp(56px, 6vw, 96px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
}
.foot-brand p {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 20px;
  line-height: 1.7;
}
.foot-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.foot-cols h3 {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--ink-3);
  margin: 0 0 20px;
  font-weight: 500;
}
.foot-cols a {
  display: block;
  font-size: 13px;
  color: var(--ink-2);
  padding: 6px 0;
  transition: color .2s, padding .2s;
}
.foot-cols a:hover { color: var(--accent); padding-left: 8px; }
.foot-bot {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 30px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.12em;
  flex-wrap: wrap; gap: 20px;
}
.foot-legal { display: flex; gap: 20px; }
.foot-legal a:hover { color: var(--accent); }

/* ============================================================
   Reveal on scroll
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .9s cubic-bezier(.19,1,.22,1), transform .9s cubic-bezier(.19,1,.22,1);
  will-change: transform, opacity;
}
[data-reveal].in-view {
  opacity: 1; transform: none;
}

/* Section heading: per-character fade */
.split-chars { display: inline-block; }
.split-chars .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.4em);
  transition: opacity .7s cubic-bezier(.19,1,.22,1), transform .7s cubic-bezier(.19,1,.22,1);
  will-change: transform, opacity;
}
.split-chars.in-view .char {
  opacity: 1;
  transform: translateY(0);
}

/* Directional variants using class on element */
.kpi[data-reveal] { transform: translateY(60px) scale(0.96); }
.kpi[data-reveal].in-view { transform: none; }

.work[data-reveal], .wlist-item[data-reveal] { transform: translateY(50px); }
.work[data-reveal].in-view, .wlist-item[data-reveal].in-view { transform: none; }

.news-item[data-reveal] { transform: translateX(-32px); }
.news-item[data-reveal].in-view { transform: none; }

.biz-card[data-reveal] { transform: translateY(40px) rotateX(4deg); transform-origin: center top; }
.biz-card[data-reveal].in-view { transform: none; }

.vision-card[data-reveal] { transform: translateY(40px); }
.vision-card[data-reveal].in-view { transform: none; }

.timeline li[data-reveal] { transform: translateX(-24px); }
.timeline li[data-reveal].in-view { transform: none; }

.job[data-reveal] { transform: translateY(28px); }
.job[data-reveal].in-view { transform: none; }

.biz-block[data-reveal] { transform: translateY(50px); }
.biz-block[data-reveal].in-view { transform: none; }

/* Section head gets a thin line-draw accent */
.section-head[data-reveal]::before,
.section-no[data-reveal]::before { content: none; }

/* A subtle page-level "reveal band" -- adds a horizontal wipe on dividers */
.about, .business, .message, .works, .news, .careers, .contact,
.profile, .vision, .history, .access, .biz-blocks, .works-list, .ceo, .ceo-profile {
  position: relative;
}
.about::before, .business::before, .message::before, .works::before,
.news::before, .careers::before, .contact::before,
.profile::before, .vision::before, .history::before, .access::before,
.biz-blocks::before, .works-list::before, .ceo::before, .ceo-profile::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  height: 1px;
  background: var(--accent);
  width: 0;
  transition: width 1.2s cubic-bezier(.76,0,.24,1);
  z-index: 2;
}
.about.in-view::before, .business.in-view::before, .message.in-view::before,
.works.in-view::before, .news.in-view::before, .careers.in-view::before,
.contact.in-view::before, .profile.in-view::before, .vision.in-view::before,
.history.in-view::before, .access.in-view::before, .biz-blocks.in-view::before,
.works-list.in-view::before, .ceo.in-view::before, .ceo-profile.in-view::before {
  width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal], .split-chars .char, .hero-h1 .fill,
  .sub-h1 .fill, .careers-h2 .fill, .vision-h2 .fill {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
  .topnav { display: none; }
  .burger { display: flex; }
  .about-grid, .message, .contact-grid, .foot-top { grid-template-columns: 1fr; gap: 40px; }
  .work { grid-column: span 12; }
  .work:nth-child(even) { margin-top: 0; }
  .job { grid-template-columns: 40px 1fr 40px; }
  .job-dept, .job-type { display: none; }
  .mega-inner { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero { padding: 130px 20px 100px; min-height: auto; }
  .hero-vert, .hero-scroll, .hero-meta { display: none; }
  .news-item { grid-template-columns: 100px 1fr; gap: 10px; }
  .news-item .news-tag, .news-item .news-arrow { display: none; }
  .kpi-grid { grid-template-columns: 1fr; }
  .foot-cols { grid-template-columns: 1fr 1fr; }
  .topbar { padding: 14px 20px; gap: 12px; }
  .cta-pill { padding: 8px 12px; font-size: 11px; }
  .cta-pill svg { display: none; }
}

/* Task 3: picture/img fit inside media slots */
.work-media picture,
.work-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* CEO portrait fit */
.msg-placeholder picture,
.msg-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ============================================================
   Accessibility — Task 8
   ============================================================ */

/* Focus ring for keyboard users */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Reduced motion — heroの重い演出を止める */
@media (prefers-reduced-motion: reduce) {
  .hero-h1--jp .fill--slide {
    transform: none !important;
    opacity: 1 !important;
    transition: none !important;
  }
  #heroCanvas { display: none; }
  .loader { display: none; }
  body, a, button { cursor: auto; }
  .cursor, .cursor-dot { display: none; }
}

/* ============================================================
   Thanks / 404 pages — Task 9
   ============================================================ */
.thanks, .notfound {
  padding: clamp(120px, 18vw, 240px) var(--pad-x);
  text-align: center;
}
.thanks .btn, .notfound .btn { margin-top: 2rem; }