:root {
  --ink: #101216;
  --ink-2: #211d19;
  --paper: #f3f1ec;
  --paper-2: #ebe6de;
  --amber: #c97932;
  --gold: #e6c28b;
  --ember: #b85a28;
  --orange: #b85e2e;
  --blue: #2f6f89;
  --holo: #62b8e8;
  --holo-deep: #2f6f89;
  --nav-ink: #f3f1ec;
  --nav-ink-muted: rgba(243, 241, 236, 0.62);
  --nav-gold: #f2c66d;
  --nav-gold-soft: #f7dfa8;
  --nav-gold-border: rgba(242, 198, 109, 0.65);
  --nav-gold-bg: rgba(242, 198, 109, 0.08);
  --nav-blue: #62b8e8;
  --nav-blue-border: rgba(98, 184, 232, 0.7);
  --nav-blue-bg: rgba(98, 184, 232, 0.14);
  --mist: rgba(243, 241, 236, 0.72);
  --text-dark: #1c1612;
  --text-dark-muted: rgba(28, 22, 18, 0.72);
  --font-display: "Shippori Mincho", "Noto Serif JP", serif;
  --font-body: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  --font-en: "Sora", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 72rem;
  --narrow: 38rem;
  --header-h: 3.5rem;
  --sticky-offset: 5.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--paper);
  background: var(--ink);
  font-family: var(--font-body);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 0.75rem 1rem;
  background: var(--ember);
  color: #fff;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.candidate-banner {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.5rem 1rem;
  text-align: center;
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  background: #2a160e;
  color: #f0d2b8;
  border-bottom: 1px solid rgba(201, 121, 50, 0.4);
}

.site-header {
  position: sticky;
  top: 2rem;
  z-index: 90;
  background: linear-gradient(180deg, rgba(16, 18, 22, 0.96), rgba(16, 18, 22, 0.88));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.15rem;
  padding: 0.4rem clamp(1rem, 4vw, 2.5rem);
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
  color: #ffffff;
  text-decoration: none;
  line-height: 1;
}

.brand-mark {
  display: block;
  flex: 0 0 auto;
  width: auto;
  height: 1.28rem;
  object-fit: contain;
  object-position: center;
}

.brand-wordmark {
  display: block;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(1.08rem, 1.4vw, 1.32rem);
  letter-spacing: 0.2em;
  color: #ffffff;
  padding-right: 0.12em; /* optical balance for trailing tracking */
  white-space: nowrap;
}

.brand:hover .brand-wordmark,
.brand:focus-visible .brand-wordmark {
  color: #ffffff;
}

@media (max-width: 959px) {
  .brand {
    gap: 0.55rem;
  }

  .brand-mark {
    height: 1.12rem;
  }

  .brand-wordmark {
    font-size: 1.06rem;
    letter-spacing: 0.18em;
  }
}

@media (max-width: 419px) {
  .brand {
    gap: 0.45rem;
  }

  .brand-mark {
    height: 1.02rem;
  }

  .brand-wordmark {
    font-size: 0.98rem;
    letter-spacing: 0.16em;
  }
}

.nav {
  display: none;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(0.85rem, 1.6vw, 1.75rem);
  row-gap: 0.35rem;
  min-width: 0;
  padding: 0 clamp(0.5rem, 1.2vw, 1.25rem);
  font-size: clamp(0.72rem, 0.95vw, 0.84rem);
  letter-spacing: 0.02em;
  line-height: 1.35;
}

.nav-link {
  flex: 0 1 auto;
  color: var(--nav-ink);
  -webkit-text-fill-color: var(--nav-ink);
  padding: 0.28rem 0.1rem;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition:
    color 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease,
    transform 160ms ease;
}

.nav-link:hover,
.nav-link:active,
.nav-link[data-hover="true"] {
  color: var(--nav-gold);
  -webkit-text-fill-color: var(--nav-gold);
  border-bottom-color: var(--nav-gold-border);
  text-shadow: 0 0 10px rgba(242, 198, 109, 0.2);
}

.nav-link:focus-visible {
  color: var(--nav-gold);
  -webkit-text-fill-color: var(--nav-gold);
  outline: 2px solid var(--nav-gold);
  outline-offset: 2px;
  border-bottom-color: var(--nav-gold-border);
  text-shadow: 0 0 10px rgba(242, 198, 109, 0.2);
}

.nav-link.is-active {
  color: var(--nav-blue);
  -webkit-text-fill-color: var(--nav-blue);
  font-weight: 700;
  border-bottom-color: var(--nav-blue);
  text-shadow: none;
}

.nav-link.is-active::before {
  content: "";
  display: inline-block;
  width: 0.35rem;
  height: 0.35rem;
  margin-right: 0.35rem;
  border-radius: 50%;
  background: var(--nav-blue);
  vertical-align: 0.05em;
}

/* Active + Hover: current location stays Blue marker; cursor intent shows Gold text */
.nav-link.is-active:hover,
.nav-link.is-active:focus-visible,
.nav-link.is-active:active,
.nav-link.is-active[data-hover="true"] {
  color: var(--nav-gold);
  -webkit-text-fill-color: var(--nav-gold);
  border-bottom-color: var(--nav-blue);
}

.header-cta {
  flex: 0 0 auto;
  font-size: 0.84rem;
  padding: 0.5rem 1rem;
  border-radius: 2px;
  background: var(--orange);
  color: #fff;
  transition: background-color 160ms ease;
}

.header-cta:hover,
.header-cta:focus-visible {
  background: #9a4d24;
  color: #fff;
  /* Keep CTA on Orange system — never Warm Gold nav hover */
}

@media (min-width: 960px) {
  .nav {
    display: flex;
  }
}

@media (min-width: 960px) and (max-width: 1180px) {
  .nav {
    justify-content: flex-start;
    gap: 0.7rem 1rem;
  }

  .nav-link {
    white-space: normal;
    max-width: 7.5rem;
    text-align: center;
  }
}

/* scroll-margin so anchors clear sticky header */
#hero,
#why-now,
#philosophy,
#succession,
#master,
#continuity,
#services,
#operating,
#future,
#contact,
#hero-detail {
  scroll-margin-top: var(--sticky-offset);
}

/* HERO */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  overflow: hidden;
  background: var(--ink);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img,
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 78% center;
  animation: heroSettle 4.5s var(--ease) both;
}

@keyframes heroSettle {
  from {
    transform: scale(1.03);
  }
  to {
    transform: scale(1);
  }
}

.hero-media-veil {
  position: absolute;
  inset: 0;
  /* D2 readability: deepen left/bottom veil so hero body text stays legible on full-bleed image */
  background:
    linear-gradient(
      90deg,
      rgba(8, 10, 14, 0.90) 0%,
      rgba(8, 10, 14, 0.78) 26%,
      rgba(8, 10, 14, 0.42) 48%,
      rgba(8, 10, 14, 0.12) 70%,
      rgba(8, 10, 14, 0.02) 100%
    ),
    linear-gradient(
      180deg,
      rgba(8, 10, 14, 0.18) 0%,
      rgba(8, 10, 14, 0.05) 35%,
      rgba(8, 10, 14, 0.55) 100%
    );
}

.hero-grid {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  min-height: calc(100svh - var(--header-h));
  display: flex;
  align-items: center;
  padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 4vw, 2.5rem);
}

.hero-copy {
  width: min(100%, 38rem);
  max-width: 42%;
}

.eyebrow {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--gold);
  margin: 0 0 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 4.5vw, 3.2rem);
  line-height: 1.28;
  letter-spacing: 0.04em;
  margin: 0 0 1.25rem;
}

.hero-line {
  display: inline-block;
  white-space: nowrap;
}

.hero-mobile-sub {
  display: none;
  margin: 0 0 1.5rem;
  color: var(--mist);
  font-size: 1rem;
}

.hero-body {
  font-size: 0.96rem;
  color: var(--mist);
}

.hero-body p {
  margin: 0 0 1rem;
}

.hero-hook {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  line-height: 1.7;
  color: var(--paper);
  margin: 0 0 1.15rem;
}

.hero-assets {
  list-style: none;
  padding: 0;
  margin: 0 0 1.15rem;
}

.hero-assets li {
  border-left: 2px solid rgba(98, 184, 232, 0.45);
  padding: 0.2rem 0 0.2rem 0.85rem;
  margin-bottom: 0.3rem;
}

.hero-punch {
  font-family: var(--font-display);
  color: var(--paper);
  font-size: 1.05rem;
}

.hero-signoff {
  margin: 1.5rem 0;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(230, 194, 139, 0.28);
}

.sign-brand {
  font-family: var(--font-en);
  letter-spacing: 0.28em;
  color: var(--holo);
  font-size: 0.85rem;
  margin: 0 0 0.35rem;
}

.sign-line {
  font-family: var(--font-display);
  margin: 0;
  letter-spacing: 0.04em;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1.2rem;
  border-radius: 2px;
  font-size: 0.92rem;
  transition: transform 150ms var(--ease), background 150ms var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--orange);
  color: #fff;
}

.btn-ghost {
  border: 1px solid rgba(243, 241, 236, 0.35);
  background: rgba(8, 10, 14, 0.25);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #9a4d24;
}

@media (max-width: 420px) {
  .hero h1 {
    font-size: 1.65rem;
    letter-spacing: 0.03em;
  }
}

@media (max-width: 899px) {
  .hero-media {
    position: relative;
    height: min(44vh, 22rem);
  }

  .hero-media img {
    object-position: 70% 30%;
    animation: none;
  }

  .hero-media-veil {
    background: linear-gradient(
      180deg,
      rgba(8, 10, 14, 0.15) 0%,
      rgba(8, 10, 14, 0.45) 50%,
      rgba(8, 10, 14, 0.98) 100%
    );
  }

  .hero-grid {
    min-height: auto;
    margin-top: -2rem;
    align-items: flex-start;
    padding-top: 0;
  }

  .hero-copy {
    max-width: none;
    width: 100%;
  }

  .hero-body-desktop {
    display: none;
  }

  .hero-mobile-sub {
    display: block;
  }

  .hero-continue {
    display: block;
  }
}

@media (min-width: 900px) {
  .hero-continue {
    display: none;
  }

  .hero-copy {
    max-width: 42%;
  }
}

/* SECTIONS */
.section {
  position: relative;
  padding: clamp(3.5rem, 9vw, 6.5rem) clamp(1rem, 4vw, 2.5rem);
}

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

.section-inner.narrow {
  max-width: var(--narrow);
}

.label {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--holo);
  margin: 0 0 1rem;
}

.section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.6vw, 2.35rem);
  line-height: 1.4;
  letter-spacing: 0.03em;
  margin: 0 0 1.4rem;
}

.body {
  margin: 0 0 1.1rem;
  color: inherit;
  opacity: 0.88;
}

.emphasis {
  opacity: 1;
  font-weight: 500;
}

.narrow-p {
  max-width: 36rem;
}

.pull {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  line-height: 1.7;
  margin: 1.75rem 0;
}

.pull.light {
  color: var(--gold);
}

.pull.light em {
  font-style: normal;
  color: var(--holo);
}

.section-ink {
  background: radial-gradient(ellipse at 80% 10%, rgba(98, 184, 232, 0.1), transparent 45%),
    linear-gradient(160deg, #17120f, #12151a 55%, #0e1014);
}

.section-paper {
  color: var(--text-dark);
  background: var(--paper-2);
}

.section-paper .label {
  color: var(--holo-deep);
}

.section-paper .body {
  color: var(--text-dark-muted);
  opacity: 1;
}

.section-dusk {
  background: radial-gradient(ellipse at 70% 30%, rgba(98, 184, 232, 0.12), transparent 45%),
    radial-gradient(ellipse at 10% 80%, rgba(184, 90, 40, 0.16), transparent 40%), #1a1410;
}

.section-split {
  color: var(--text-dark);
  background: linear-gradient(180deg, #f3ebe1, var(--paper));
}

.section-split .label {
  color: var(--holo-deep);
}

.section-split .body {
  color: var(--text-dark-muted);
  opacity: 1;
}

.section-services {
  color: var(--paper);
  background: radial-gradient(ellipse at 20% 0%, rgba(201, 121, 50, 0.12), transparent 50%),
    linear-gradient(160deg, #1a1612, #12151a);
}

.section-cta {
  background: radial-gradient(ellipse at 50% 0%, rgba(184, 90, 40, 0.2), transparent 50%), #120e0b;
}

.split-layout {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 960px) {
  .split-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
  }
}

.split-visual img,
.inline-visual img,
.future-visual img {
  width: 100%;
  border-radius: 2px;
}

.split-visual figcaption,
.inline-visual figcaption {
  margin-top: 0.55rem;
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--holo-deep);
  opacity: 0.85;
}

.section-ink .inline-visual figcaption,
.section-dusk .inline-visual figcaption {
  color: var(--mist);
}

.soft-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.4rem;
}

.soft-list li {
  padding: 0.4rem 0 0.4rem 1rem;
  border-left: 2px solid rgba(184, 90, 40, 0.45);
  margin-bottom: 0.3rem;
  color: var(--text-dark-muted);
}

.soft-list.on-dark li {
  border-left-color: rgba(98, 184, 232, 0.5);
  color: var(--mist);
}

.quote-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.quote-list li {
  font-family: var(--font-display);
  color: var(--holo-deep);
  margin-bottom: 0.3rem;
}

.chip-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 1rem 0 1.2rem;
}

.chip-list li {
  font-size: 0.8rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(58, 127, 150, 0.35);
  color: var(--holo-deep);
  background: rgba(98, 184, 232, 0.08);
  border-radius: 2px;
}

.chip-list.warm li {
  border-color: rgba(184, 90, 40, 0.35);
  color: var(--ember);
  background: rgba(184, 90, 40, 0.06);
}

.flow-meta {
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--holo-deep);
  margin: 0 0 2rem;
}

.flow-meta span {
  color: var(--amber);
  margin: 0 0.35rem;
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
}

.timeline > li {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: 1rem;
  padding: 1.75rem 0;
  border-top: 1px solid rgba(28, 22, 18, 0.12);
}

.timeline > li:last-child {
  border-bottom: 1px solid rgba(28, 22, 18, 0.12);
}

.step-num {
  font-family: var(--font-en);
  color: var(--ember);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  padding-top: 0.2rem;
}

.timeline h3 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.timeline p {
  margin: 0 0 0.75rem;
  color: var(--text-dark-muted);
}

.principle {
  margin-top: 0.75rem;
  padding: 0.9rem 1rem;
  border-left: 2px solid var(--holo-deep);
  background: rgba(98, 184, 232, 0.08);
}

.principle strong {
  font-family: var(--font-en);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.inline-visual {
  margin: 1.25rem 0 0;
}

.continuity-flow {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  padding: 0;
  margin: 2rem 0 0;
}

@media (min-width: 800px) {
  .continuity-flow {
    grid-template-columns: repeat(5, 1fr);
  }
}

.continuity-flow li {
  padding: 1rem 0.85rem;
  border-top: 2px solid rgba(201, 121, 50, 0.65);
  background: rgba(255, 255, 255, 0.03);
}

.continuity-flow span {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
}

.continuity-flow small {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 2rem;
}

@media (min-width: 720px) {
  .service-grid {
    grid-template-columns: 1fr 1fr;
    column-gap: 2rem;
  }
}

.service-grid article {
  padding: 1.5rem 0;
  border-top: 1px solid rgba(243, 241, 236, 0.12);
}

.service-grid article:hover {
  border-left: 2px solid var(--amber);
  padding-left: 0.85rem;
  margin-left: -0.85rem;
}

.svc-num {
  font-family: var(--font-en);
  font-size: 0.75rem;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.service-grid h3 {
  margin: 0.4rem 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.08rem;
}

.service-grid p {
  margin: 0;
  color: var(--mist);
  font-size: 0.95rem;
}

.ops-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
  align-items: start;
}

@media (min-width: 800px) {
  .ops-grid {
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
  }
}

.ops-col h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.ops-arrow {
  font-family: var(--font-en);
  font-size: 1.5rem;
  color: var(--amber);
  text-align: center;
}

.principle-note {
  margin-top: 1.5rem;
  color: var(--text-dark-muted);
  opacity: 1;
}

.section-future {
  overflow: hidden;
  min-height: 70vh;
  display: grid;
  align-items: center;
  background: #0f1216;
}

.future-visual {
  position: absolute;
  inset: 0;
}

.future-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.future-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(8, 10, 14, 0.88) 0%,
    rgba(8, 10, 14, 0.55) 45%,
    rgba(8, 10, 14, 0.35) 100%
  );
}

.future-copy {
  position: relative;
  z-index: 1;
}

.cta-close {
  margin: 2rem 0 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(230, 194, 139, 0.25);
}

.micro {
  margin-top: 1.75rem;
  font-size: 0.76rem;
  color: rgba(243, 241, 236, 0.55);
}

.site-footer {
  padding: 2.75rem clamp(1rem, 4vw, 2.5rem) 3.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
}

.logo-mark {
  font-family: var(--font-en);
  letter-spacing: 0.28em;
  font-weight: 600;
  margin-bottom: 0.65rem;
}

.site-footer p {
  margin: 0.25rem 0;
  color: rgba(243, 241, 236, 0.55);
}

/* ========== Floating Navigation Hub ========== */
.nav-hub {
  position: fixed;
  z-index: 95;
  right: max(0.85rem, env(safe-area-inset-right));
  bottom: max(1.1rem, env(safe-area-inset-bottom));
}

.nav-hub-toggle {
  display: none;
}

.nav-hub-panel {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.2rem;
  background: rgba(26, 22, 18, 0.88);
  border: 1px solid rgba(243, 241, 236, 0.14);
  border-radius: 999px;
  padding: 0.35rem 0.28rem;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(10px);
  transition:
    padding 160ms ease,
    border-radius 160ms ease,
    background-color 160ms ease,
    box-shadow 160ms ease;
}

.nav-hub-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.nav-hub-expand {
  display: none;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 1.55rem;
  margin-top: 0.1rem;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--nav-ink-muted);
  -webkit-text-fill-color: var(--nav-ink-muted);
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.nav-hub-expand:hover,
.nav-hub-expand:focus-visible {
  color: var(--nav-gold);
  -webkit-text-fill-color: var(--nav-gold);
  border-color: var(--nav-gold-border);
  background-color: var(--nav-gold-bg);
  outline: none;
}

.nav-hub-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 1.85rem;
  min-width: 1.85rem;
  padding: 0.22rem 0.28rem;
  border-radius: 999px;
  color: var(--nav-ink);
  -webkit-text-fill-color: var(--nav-ink);
  border: 1px solid transparent;
  background-color: transparent;
  box-shadow: inset 0 0 0 0 transparent;
  opacity: 0.48;
  transition:
    color 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    opacity 160ms ease,
    transform 160ms ease,
    padding 160ms ease,
    min-width 160ms ease;
}

.nav-hub-symbol {
  flex: 0 0 1.1rem;
  width: 1.1rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--nav-ink);
  -webkit-text-fill-color: var(--nav-ink);
  transition: color 160ms ease;
}

.nav-hub-text {
  display: none;
  flex-direction: column;
  line-height: 1.2;
  white-space: nowrap;
}

.nav-hub-ja {
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--nav-ink);
  -webkit-text-fill-color: var(--nav-ink);
  transition: color 160ms ease;
}

.nav-hub-en {
  font-family: var(--font-en);
  font-size: 0.6rem;
  letter-spacing: 0.04em;
  color: var(--nav-ink-muted);
  -webkit-text-fill-color: var(--nav-ink-muted);
  opacity: 1;
  transition: color 160ms ease;
}

/* Compact: current section stays readable */
.nav-hub-list a.nav-hub-link.is-active {
  opacity: 1;
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
  font-weight: 700;
  background-color: var(--nav-blue-bg);
  border-color: var(--nav-blue-border);
  box-shadow: inset 0 0 0 999px var(--nav-blue-bg);
  text-shadow: none;
  transform: none;
}

.nav-hub-list a.nav-hub-link.is-active .nav-hub-symbol {
  color: var(--nav-blue);
  -webkit-text-fill-color: var(--nav-blue);
}

.nav-hub-list a.nav-hub-link.is-active .nav-hub-ja {
  color: #ffffff;
  -webkit-text-fill-color: #ffffff;
}

.nav-hub-list a.nav-hub-link.is-active .nav-hub-en {
  color: rgba(98, 184, 232, 0.85);
  -webkit-text-fill-color: rgba(98, 184, 232, 0.85);
}

.nav-hub-list a.nav-hub-link.is-active::before {
  content: "";
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 50%;
  background-color: var(--nav-blue);
  margin-right: -0.1rem;
  flex: 0 0 auto;
}

/* Desktop: compact rail → expand on hover / focus / pin */
@media (min-width: 900px) {
  .nav-hub {
    top: 50%;
    bottom: auto;
    transform: translateY(-50%);
    right: max(0.85rem, env(safe-area-inset-right));
  }

  .nav-hub-expand {
    display: inline-flex;
  }

  .nav-hub:hover .nav-hub-panel,
  .nav-hub:focus-within .nav-hub-panel,
  .nav-hub.is-expanded .nav-hub-panel {
    border-radius: 14px;
    padding: 0.5rem 0.45rem;
    background: rgba(26, 22, 18, 0.94);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  }

  .nav-hub:hover .nav-hub-text,
  .nav-hub:focus-within .nav-hub-text,
  .nav-hub.is-expanded .nav-hub-text {
    display: flex;
  }

  .nav-hub:hover .nav-hub-link,
  .nav-hub:focus-within .nav-hub-link,
  .nav-hub.is-expanded .nav-hub-link {
    justify-content: flex-start;
    padding: 0.35rem 0.75rem 0.35rem 0.45rem;
    min-width: 12.75rem;
    opacity: 1;
  }

  .nav-hub:hover .nav-hub-expand,
  .nav-hub:focus-within .nav-hub-expand,
  .nav-hub.is-expanded .nav-hub-expand {
    color: var(--nav-ink);
    -webkit-text-fill-color: var(--nav-ink);
  }
}

/* Gold = cursor intent (pointer devices) */
@media (hover: hover) and (pointer: fine) {
  .nav-hub-link:hover,
  .nav-hub-link[data-hover="true"] {
    color: var(--nav-gold);
    -webkit-text-fill-color: var(--nav-gold);
    background-color: var(--nav-gold-bg);
    border-color: var(--nav-gold-border);
    box-shadow: inset 0 0 0 999px var(--nav-gold-bg);
    opacity: 1;
    transform: translateX(2px);
    text-shadow: 0 0 10px rgba(242, 198, 109, 0.2);
  }

  .nav-hub-link:hover .nav-hub-symbol,
  .nav-hub-link[data-hover="true"] .nav-hub-symbol,
  .nav-hub-link:hover .nav-hub-ja,
  .nav-hub-link[data-hover="true"] .nav-hub-ja {
    color: var(--nav-gold);
    -webkit-text-fill-color: var(--nav-gold);
  }

  .nav-hub-link:hover .nav-hub-en,
  .nav-hub-link[data-hover="true"] .nav-hub-en {
    color: var(--nav-gold-soft);
    -webkit-text-fill-color: var(--nav-gold-soft);
  }
}

/* Gold = tap feedback (touch) */
@media (hover: none), (pointer: coarse) {
  .nav-hub-link:active,
  .nav-hub-link[data-hover="true"] {
    color: var(--nav-gold);
    -webkit-text-fill-color: var(--nav-gold);
    background-color: var(--nav-gold-bg);
    border-color: var(--nav-gold-border);
    box-shadow: inset 0 0 0 999px var(--nav-gold-bg);
    opacity: 1;
    transform: translateX(2px);
    text-shadow: 0 0 10px rgba(242, 198, 109, 0.2);
  }

  .nav-hub-link:active .nav-hub-symbol,
  .nav-hub-link[data-hover="true"] .nav-hub-symbol,
  .nav-hub-link:active .nav-hub-ja,
  .nav-hub-link[data-hover="true"] .nav-hub-ja {
    color: var(--nav-gold);
    -webkit-text-fill-color: var(--nav-gold);
  }

  .nav-hub-link:active .nav-hub-en,
  .nav-hub-link[data-hover="true"] .nav-hub-en {
    color: var(--nav-gold-soft);
    -webkit-text-fill-color: var(--nav-gold-soft);
  }
}

.nav-hub-link:focus-visible {
  color: var(--nav-gold);
  -webkit-text-fill-color: var(--nav-gold);
  background-color: var(--nav-gold-bg);
  border-color: var(--nav-gold-border);
  box-shadow: inset 0 0 0 999px var(--nav-gold-bg);
  outline: 2px solid var(--nav-gold);
  outline-offset: 2px;
  opacity: 1;
  transform: translateX(2px);
  text-shadow: 0 0 10px rgba(242, 198, 109, 0.2);
}

.nav-hub-link:focus-visible .nav-hub-symbol,
.nav-hub-link:focus-visible .nav-hub-ja {
  color: var(--nav-gold);
  -webkit-text-fill-color: var(--nav-gold);
}

.nav-hub-link:focus-visible .nav-hub-en {
  color: var(--nav-gold-soft);
  -webkit-text-fill-color: var(--nav-gold-soft);
}

/* Active + Gold intent */
.nav-hub-list a.nav-hub-link.is-active:hover,
.nav-hub-list a.nav-hub-link.is-active:focus-visible,
.nav-hub-list a.nav-hub-link.is-active[data-hover="true"] {
  color: var(--nav-gold);
  -webkit-text-fill-color: var(--nav-gold);
  background-color: var(--nav-gold-bg);
  border-color: var(--nav-blue-border);
  box-shadow: inset 0 0 0 999px var(--nav-gold-bg);
  opacity: 1;
  transform: translateX(2px);
}

.nav-hub-list a.nav-hub-link.is-active:hover .nav-hub-symbol,
.nav-hub-list a.nav-hub-link.is-active:focus-visible .nav-hub-symbol,
.nav-hub-list a.nav-hub-link.is-active[data-hover="true"] .nav-hub-symbol,
.nav-hub-list a.nav-hub-link.is-active:hover .nav-hub-ja,
.nav-hub-list a.nav-hub-link.is-active:focus-visible .nav-hub-ja,
.nav-hub-list a.nav-hub-link.is-active[data-hover="true"] .nav-hub-ja {
  color: var(--nav-gold);
  -webkit-text-fill-color: var(--nav-gold);
}

.nav-hub-list a.nav-hub-link.is-active:hover .nav-hub-en,
.nav-hub-list a.nav-hub-link.is-active:focus-visible .nav-hub-en,
.nav-hub-list a.nav-hub-link.is-active[data-hover="true"] .nav-hub-en {
  color: var(--nav-gold-soft);
  -webkit-text-fill-color: var(--nav-gold-soft);
}

.nav-hub-list a.nav-hub-link.is-active:hover::before,
.nav-hub-list a.nav-hub-link.is-active:focus-visible::before,
.nav-hub-list a.nav-hub-link.is-active[data-hover="true"]::before {
  background-color: var(--nav-blue);
}

/* Mobile: FAB + expandable sheet */
@media (max-width: 899px) {
  .nav-hub {
    top: auto;
    bottom: max(1rem, env(safe-area-inset-bottom));
    right: max(0.85rem, env(safe-area-inset-right));
    display: flex;
    flex-direction: column-reverse;
    align-items: flex-end;
    gap: 0.55rem;
  }

  .nav-hub-expand {
    display: none !important;
  }

  .nav-hub-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    width: 2.85rem;
    height: 2.85rem;
    border: 1px solid rgba(243, 241, 236, 0.2);
    border-radius: 999px;
    background: rgba(26, 22, 18, 0.94);
    color: var(--paper);
    -webkit-text-fill-color: var(--paper);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35);
    cursor: pointer;
  }

  .nav-hub-toggle-text {
    display: none;
  }

  .nav-hub-toggle:hover,
  .nav-hub-toggle:focus-visible,
  .nav-hub-toggle:active {
    border-color: var(--nav-gold-border);
    color: var(--nav-gold);
    -webkit-text-fill-color: var(--nav-gold);
  }

  .nav-hub-panel {
    display: none;
    min-width: 0;
    max-width: min(16rem, calc(100vw - 2.5rem));
    border-radius: 12px;
    padding: 0.4rem;
  }

  .nav-hub.is-open .nav-hub-panel {
    display: flex;
  }

  .nav-hub.is-open .nav-hub-text {
    display: flex;
  }

  .nav-hub.is-open .nav-hub-link {
    justify-content: flex-start;
    min-width: 10.25rem;
    opacity: 1;
    padding: 0.35rem 0.7rem 0.35rem 0.45rem;
  }

  .nav-hub.is-open .nav-hub-toggle {
    /* Knowledge Blue — not CTA Orange */
    background: rgba(47, 111, 137, 0.95);
    border-color: var(--nav-blue);
    color: #fff;
    -webkit-text-fill-color: #fff;
  }
}


.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

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

  .hero-media img,
  .reveal,
  .nav-hub-link,
  .nav-link {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }

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

  .btn:hover,
  .nav-hub {
    transform: none;
  }

  @media (min-width: 900px) {
    .nav-hub {
      transform: translateY(-50%);
    }
  }
}


/* independent_verify_20261021: contrast fixes (WCAG AA 4.5 for small text) */
.btn-primary,
.header-cta {
  background: #a65428;
}

.btn-primary:hover,
.btn-primary:focus-visible,
.header-cta:hover,
.header-cta:focus-visible {
  background: #8c4620;
}

.section-split .label {
  color: var(--holo-deep);
}

.step-num,
.chip-list.warm li {
  color: #8f4118;
}