/* Japanese pages: isolated presentation layer. Loaded only by /ja/ pages. */
.lang-ja {
  --ja-navy: #16324a;
  --ja-navy-dark: #0e2538;
  --ja-teal: #008f87;
  --ja-teal-dark: #00736d;
  --ja-gold: #f2b84b;
  --ja-text: #314458;
  --ja-muted: #66788a;
  --ja-border: #dce6ed;
  --ja-soft: #f2f7fa;
  --ja-white: #fff;
  margin: 0;
  background: var(--ja-white);
  color: var(--ja-text);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

.lang-ja a {
  color: var(--ja-teal-dark);
}

.lang-ja a:hover {
  color: var(--ja-navy);
  text-decoration: none;
}

.lang-ja h1,
.lang-ja h2,
.lang-ja h3,
.lang-ja p {
  overflow-wrap: anywhere;
}

.lang-ja h1,
.lang-ja h2,
.lang-ja h3 {
  color: var(--ja-navy);
  font-family: inherit;
  letter-spacing: .01em;
}

.lang-ja .ja-shell {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}

.lang-ja .ja-site-header {
  position: relative;
  z-index: 20;
  padding: 0;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--ja-border);
  box-shadow: 0 3px 18px rgba(22, 50, 74, .06);
}

.lang-ja .ja-header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.lang-ja .ja-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--ja-navy);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: .025em;
  text-decoration: none;
}

.lang-ja .ja-brand img {
  width: 32px;
  height: 32px;
}

.lang-ja .ja-main-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  margin-left: auto;
}

.lang-ja .ja-main-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--ja-text);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.lang-ja .ja-main-nav a:hover,
.lang-ja .ja-main-nav a[aria-current="page"] {
  background: var(--ja-soft);
  color: var(--ja-teal-dark);
}

.lang-ja .ja-main-nav .ja-language {
  color: var(--ja-muted);
  font-weight: 600;
}

.lang-ja .ja-main-nav .ja-nav-cta {
  margin-left: 8px;
  padding-inline: 18px;
  background: var(--ja-teal);
  color: var(--ja-white);
  box-shadow: 0 7px 18px rgba(0, 143, 135, .18);
}

.lang-ja .ja-main-nav .ja-nav-cta:hover {
  background: var(--ja-teal-dark);
  color: var(--ja-white);
}

.lang-ja .ja-hero {
  padding: clamp(54px, 7vw, 92px) 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 15%, rgba(0, 143, 135, .12), transparent 32%),
    linear-gradient(135deg, #f7fbfd 0%, #eef6f8 100%);
}

.lang-ja .ja-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, .88fr);
  align-items: center;
  gap: clamp(40px, 6vw, 80px);
}

.lang-ja .ja-eyebrow {
  margin: 0 0 14px;
  color: var(--ja-teal-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.lang-ja .ja-hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(36px, 4.25vw, 58px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.035em;
}

.lang-ja .ja-hero-lead {
  max-width: 660px;
  margin: 24px 0 0;
  color: var(--ja-text);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.9;
}

.lang-ja .ja-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.lang-ja .ja-button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border: 2px solid var(--ja-teal);
  border-radius: 9px;
  background: var(--ja-teal);
  color: var(--ja-white);
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
  transition: transform .2s ease, background-color .2s ease, box-shadow .2s ease;
}

.lang-ja .ja-button:hover {
  transform: translateY(-1px);
  background: var(--ja-teal-dark);
  border-color: var(--ja-teal-dark);
  color: var(--ja-white);
  box-shadow: 0 9px 24px rgba(0, 115, 109, .18);
}

.lang-ja .ja-button-secondary {
  background: transparent;
  border-color: #91a6b5;
  color: var(--ja-navy);
}

.lang-ja .ja-button-secondary:hover {
  background: var(--ja-white);
  border-color: var(--ja-navy);
  color: var(--ja-navy);
}

.lang-ja .ja-hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}

.lang-ja .ja-hero-visual::before {
  position: absolute;
  width: min(390px, 90%);
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(255, 255, 255, .72);
  content: "";
}

.lang-ja .ja-hero-visual img {
  position: relative;
  z-index: 1;
  width: min(330px, 82%);
  max-height: 430px;
  object-fit: contain;
  filter: drop-shadow(0 20px 28px rgba(22, 50, 74, .16));
}

.lang-ja .ja-section {
  padding: clamp(60px, 7vw, 88px) 0;
}

.lang-ja .ja-section-soft {
  background: var(--ja-soft);
}

.lang-ja .ja-section-heading {
  max-width: 720px;
  margin: 0 auto 36px;
  text-align: center;
}

.lang-ja .ja-section-heading h2,
.lang-ja .ja-content h2 {
  margin: 0 0 14px;
  font-size: clamp(27px, 3vw, 38px);
  font-weight: 800;
  line-height: 1.35;
}

.lang-ja .ja-section-heading p {
  margin: 0;
  color: var(--ja-muted);
  font-size: 16px;
}

.lang-ja .ja-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.lang-ja .ja-card {
  min-width: 0;
  padding: 28px;
  background: var(--ja-white);
  border: 1px solid var(--ja-border);
  border-radius: 14px;
  box-shadow: 0 13px 32px rgba(22, 50, 74, .06);
}

.lang-ja .ja-card h3 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.45;
}

.lang-ja .ja-card p {
  margin: 0;
  color: var(--ja-muted);
}

.lang-ja .ja-card-link {
  display: inline-flex;
  margin-top: 18px;
  font-weight: 800;
  text-decoration: none;
}

.lang-ja .ja-number {
  display: inline-grid;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 10px;
  background: rgba(0, 143, 135, .11);
  color: var(--ja-teal-dark);
  font-weight: 800;
}

.lang-ja .ja-link-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.lang-ja .ja-link-panel .ja-card {
  display: flex;
  flex-direction: column;
}

.lang-ja .ja-link-panel .ja-card-link {
  margin-top: auto;
  padding-top: 18px;
}

.lang-ja .ja-cta-section {
  padding: clamp(54px, 6vw, 76px) 0;
  background: var(--ja-navy);
  color: var(--ja-white);
}

.lang-ja .ja-cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.lang-ja .ja-cta-box h2 {
  margin: 0 0 10px;
  color: var(--ja-white);
  font-size: clamp(27px, 3vw, 38px);
  font-weight: 800;
}

.lang-ja .ja-cta-box p {
  max-width: 700px;
  margin: 0;
  color: #d8e5ee;
}

.lang-ja .ja-site-footer {
  padding: 28px 0;
  background: var(--ja-navy-dark);
  color: #cbd9e3;
  font-size: 14px;
}

.lang-ja .ja-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.lang-ja .ja-site-footer p,
.lang-ja .ja-site-footer address {
  margin: 0;
  color: inherit;
  font-style: normal;
}

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

/* Service page */
.lang-ja .ja-page-hero {
  padding: clamp(48px, 6vw, 76px) 0;
  background: linear-gradient(135deg, #eef6f8, #f8fbfc);
}

.lang-ja .ja-page-hero h1 {
  max-width: 800px;
  margin: 0;
  font-size: clamp(34px, 4vw, 50px);
  font-weight: 800;
  line-height: 1.3;
}

.lang-ja .ja-page-hero p:not(.ja-eyebrow) {
  max-width: 760px;
  margin: 20px 0 0;
  font-size: 18px;
}

.lang-ja .ja-content {
  max-width: 900px;
}

.lang-ja .ja-content-block + .ja-content-block {
  margin-top: 52px;
}

.lang-ja .ja-service-list,
.lang-ja .ja-step-list {
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.lang-ja .ja-service-list li,
.lang-ja .ja-step-list li {
  padding: 19px 22px;
  background: var(--ja-white);
  border: 1px solid var(--ja-border);
  border-radius: 10px;
}

.lang-ja .ja-step-list {
  counter-reset: ja-step;
}

.lang-ja .ja-step-list li {
  position: relative;
  padding-left: 66px;
  counter-increment: ja-step;
}

.lang-ja .ja-step-list li::before {
  position: absolute;
  top: 16px;
  left: 18px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--ja-teal);
  color: var(--ja-white);
  content: counter(ja-step);
  font-size: 14px;
  font-weight: 800;
}

/* Existing portfolio page integration */
.lang-ja .ja-case-main .breadcrumbs {
  padding: 30px 0;
  background: var(--ja-soft);
}

.lang-ja .ja-case-main .breadcrumbs h1 {
  margin: 0;
  color: var(--ja-navy);
  font-size: clamp(27px, 3vw, 36px);
  font-weight: 800;
}

.lang-ja .ja-case-main .breadcrumbs ol {
  margin: 0;
}

.lang-ja .ja-case-main .portfolio {
  padding: 62px 0 76px;
}

.lang-ja .ja-case-main .section-title h2 {
  text-transform: none;
}

.lang-ja .ja-case-main .portfolio-wrap {
  background: var(--ja-white);
  box-shadow: 0 10px 30px rgba(22, 50, 74, .1);
}

.lang-ja .ja-case-main .portfolio-wrap img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

@media (max-width: 991px) {
  .lang-ja .ja-shell {
    width: min(900px, calc(100% - 36px));
  }

  .lang-ja .ja-header-inner {
    min-height: 70px;
    gap: 18px;
  }

  .lang-ja .ja-main-nav a {
    padding-inline: 9px;
  }

  .lang-ja .ja-hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(250px, .85fr);
    gap: 34px;
  }

  .lang-ja .ja-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lang-ja .ja-card-grid .ja-card:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  .lang-ja .ja-shell {
    width: min(680px, calc(100% - 28px));
  }

  .lang-ja .ja-header-inner {
    padding: 12px 0;
    flex-wrap: wrap;
  }

  .lang-ja .ja-brand {
    min-height: 40px;
  }

  .lang-ja .ja-main-nav {
    width: 100%;
    justify-content: flex-start;
    gap: 4px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .lang-ja .ja-main-nav::-webkit-scrollbar {
    display: none;
  }

  .lang-ja .ja-main-nav a {
    flex: 0 0 auto;
    min-height: 42px;
    font-size: 13px;
  }

  .lang-ja .ja-main-nav .ja-nav-cta {
    margin-left: 2px;
  }

  .lang-ja .ja-hero {
    padding: 46px 0 54px;
  }

  .lang-ja .ja-hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .lang-ja .ja-hero h1 {
    font-size: clamp(32px, 9vw, 42px);
  }

  .lang-ja .ja-hero-visual img {
    width: min(250px, 72%);
    max-height: 300px;
  }

  .lang-ja .ja-card-grid,
  .lang-ja .ja-link-panel {
    grid-template-columns: 1fr;
  }

  .lang-ja .ja-card-grid .ja-card:last-child {
    grid-column: auto;
  }

  .lang-ja .ja-cta-box,
  .lang-ja .ja-footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .lang-ja .ja-cta-box .ja-button {
    width: 100%;
  }

  .lang-ja .ja-case-main .breadcrumbs .d-flex {
    align-items: flex-start !important;
    flex-direction: column;
    gap: 10px;
  }
}

@media (max-width: 430px) {
  .lang-ja .ja-main-nav {
    justify-content: space-between;
    gap: 0;
    overflow: visible;
  }

  .lang-ja .ja-main-nav a {
    padding-inline: 6px;
  }

  .lang-ja .ja-main-nav .ja-nav-cta {
    margin-left: 0;
    padding-inline: 12px;
  }

  .lang-ja .ja-main-nav .ja-language {
    display: none;
  }

  .lang-ja .ja-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .lang-ja .ja-button {
    width: 100%;
  }

  .lang-ja .ja-card {
    padding: 23px 20px;
  }

  .lang-ja .ja-step-list li {
    padding: 62px 18px 18px;
  }
}