:root {
  --color-ink: #111411;
  --color-muted: #676b66;
  --color-soft: #f5f1e8;
  --color-warm: #e8ded0;
  --color-line: #d9d3c8;
  --color-white: #ffffff;
  --color-green: #183c34;
  --color-navy: #172636;
  --font-sans: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --header-height: 78px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-soft);
  color: var(--color-ink);
  font-family: var(--font-sans);
  letter-spacing: 0;
}

body.menu-open {
  overflow: hidden;
}

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

p,
h1,
h2,
h3 {
  margin: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  width: 100%;
  min-height: var(--header-height);
  padding: 18px clamp(20px, 4vw, 64px);
  border-bottom: 1px solid rgba(17, 20, 17, 0.08);
  background: rgba(245, 241, 232, 0.86);
  backdrop-filter: blur(16px);
  transition: min-height 220ms ease, background 220ms ease;
}

.site-header.is-scrolled {
  min-height: 66px;
  background: rgba(245, 241, 232, 0.96);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  line-height: 1;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--color-ink);
  border-radius: 50%;
  font-size: 12px;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: clamp(14px, 2.2vw, 34px);
  color: var(--color-muted);
  font-size: 13px;
}

.site-nav a,
.site-footer a {
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-footer a:hover {
  color: var(--color-ink);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid var(--color-ink);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

.menu-toggle {
  display: none;
}

.section,
.section-large {
  padding-right: clamp(20px, 5vw, 88px);
  padding-left: clamp(20px, 5vw, 88px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(300px, 0.8fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: center;
  min-height: 100svh;
  padding-top: calc(var(--header-height) + 42px);
  padding-bottom: 28px;
  overflow: hidden;
}

.eyebrow {
  margin-bottom: 22px;
  color: var(--color-green);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2 {
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: 0;
}

h1 {
  max-width: 980px;
  font-size: clamp(64px, 7.8vw, 118px);
}

h2 {
  font-size: clamp(48px, 7vw, 112px);
}

.hero-lead {
  max-width: 620px;
  margin-top: 30px;
  color: var(--color-navy);
  font-size: clamp(22px, 3vw, 38px);
  line-height: 1.18;
}

.jp-copy {
  max-width: 680px;
  margin-top: 22px;
  color: var(--color-muted);
  font-family: var(--font-jp);
  font-size: clamp(14px, 1.5vw, 17px);
  line-height: 2;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

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

.button-dark {
  border: 1px solid var(--color-ink);
  background: var(--color-ink);
  color: var(--color-white);
}

.button-dark:hover {
  background: var(--color-green);
  border-color: var(--color-green);
}

.button-light {
  border: 1px solid var(--color-line);
  background: var(--color-white);
}

.button-outline {
  border: 1px solid var(--color-ink);
  background: transparent;
}

.hero-visual {
  position: relative;
  min-height: 470px;
}

.image-placeholder {
  position: absolute;
  inset: 0 0 34px 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 400px;
  padding: 34px;
  border: 1px solid rgba(17, 20, 17, 0.12);
  border-radius: 8px;
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.68), rgba(232, 222, 208, 0.42)),
    repeating-linear-gradient(135deg, rgba(17, 20, 17, 0.045) 0 1px, transparent 1px 18px);
  overflow: hidden;
}

.image-placeholder::before {
  content: "";
  position: absolute;
  top: 18%;
  right: -18%;
  width: 62%;
  aspect-ratio: 1;
  border: 1px solid rgba(24, 60, 52, 0.18);
  border-radius: 50%;
}

.placeholder-label {
  margin-bottom: auto;
  color: var(--color-muted);
  font-size: 11px;
  text-transform: uppercase;
}

.placeholder-title {
  max-width: 280px;
  font-size: clamp(38px, 4.8vw, 64px);
  font-weight: 800;
  line-height: 0.98;
}

.placeholder-note {
  max-width: 260px;
  margin-top: 16px;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
}

.visual-card {
  position: absolute;
  display: grid;
  gap: 8px;
  width: min(230px, 54vw);
  padding: 20px;
  border: 1px solid rgba(17, 20, 17, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 24px 70px rgba(17, 20, 17, 0.09);
  backdrop-filter: blur(14px);
}

.visual-card span {
  color: var(--color-muted);
  font-size: 12px;
}

.visual-card strong {
  font-size: 20px;
}

.visual-card-one {
  top: 18%;
  left: 0;
}

.visual-card-two {
  right: 0;
  bottom: 0;
}

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

.intro-strip p {
  padding: 22px clamp(18px, 4vw, 48px);
  background: var(--color-soft);
  color: var(--color-muted);
  font-size: 13px;
  text-transform: uppercase;
}

.section {
  padding-top: clamp(92px, 13vw, 178px);
  padding-bottom: clamp(92px, 13vw, 178px);
}

.split-section,
.why-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(38px, 8vw, 120px);
  border-bottom: 1px solid var(--color-line);
}

.section-body {
  max-width: 780px;
  padding-top: clamp(10px, 1vw, 20px);
}

.section-body p {
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.65;
}

.section-body p + p {
  margin-top: 22px;
}

.section-body .large-text {
  color: var(--color-ink);
  font-size: clamp(26px, 3.5vw, 48px);
  line-height: 1.18;
}

.wide-heading {
  max-width: 1050px;
}

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

.service-section .eyebrow,
.service-section .service-card span {
  color: #b9d1c1;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: clamp(46px, 7vw, 86px);
  background: rgba(255, 255, 255, 0.18);
}

.service-card {
  min-height: 290px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--color-ink);
}

.service-card span {
  display: block;
  margin-bottom: 54px;
  font-size: 12px;
}

.service-card h3 {
  max-width: 260px;
  font-size: clamp(24px, 2.5vw, 36px);
  line-height: 1.05;
}

.service-card p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.68);
  font-family: var(--font-jp);
  font-size: 14px;
  line-height: 1.75;
}

.why-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.why-list li {
  padding: 28px 0;
  border-bottom: 1px solid var(--color-line);
  font-size: clamp(22px, 3vw, 42px);
  font-weight: 700;
  line-height: 1.16;
}

.why-list li:first-child {
  border-top: 1px solid var(--color-line);
}

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

.instagram-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.65fr);
  gap: clamp(34px, 7vw, 110px);
  align-items: end;
  padding: clamp(34px, 6vw, 74px);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background:
    linear-gradient(120deg, rgba(245, 241, 232, 0.82), rgba(255, 255, 255, 0.9)),
    linear-gradient(90deg, transparent 0 64%, rgba(24, 60, 52, 0.08) 64% 100%);
}

.instagram-panel p:not(.eyebrow) {
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 24px);
  line-height: 1.55;
}

.faq-section {
  border-bottom: 1px solid var(--color-line);
}

.faq-list {
  max-width: 980px;
  margin-top: clamp(40px, 7vw, 86px);
  margin-left: auto;
}

details {
  border-top: 1px solid var(--color-line);
}

details:last-child {
  border-bottom: 1px solid var(--color-line);
}

summary {
  position: relative;
  min-height: 78px;
  padding: 26px 48px 26px 0;
  cursor: pointer;
  font-size: clamp(19px, 2vw, 28px);
  font-weight: 700;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
}

details[open] summary::after {
  content: "-";
}

details p {
  max-width: 760px;
  padding: 0 42px 28px 0;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.75;
}

.contact-section {
  background: var(--color-green);
  color: var(--color-white);
}

.contact-inner {
  max-width: 1080px;
}

.contact-section .eyebrow {
  color: #c7d9c8;
}

.contact-section p:not(.eyebrow) {
  max-width: 640px;
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.74);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.55;
}

.contact-section .button-dark {
  background: var(--color-white);
  color: var(--color-green);
  border-color: var(--color-white);
}

.contact-section .button-light,
.contact-section .button-outline {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 28px;
  align-items: center;
  padding: 34px clamp(20px, 5vw, 88px);
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}

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

.site-footer p {
  margin-top: 6px;
}

.site-footer nav {
  display: flex;
  gap: 22px;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

  .button,
  .reveal,
  .site-header {
    transition: none;
  }

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

@media (max-width: 1040px) {
  .site-header {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .menu-toggle {
    display: inline-grid;
    place-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--color-line);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.7);
  }

  .menu-toggle span:not(.sr-only) {
    display: block;
    width: 17px;
    height: 1px;
    background: var(--color-ink);
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    display: grid;
    width: 100%;
    padding: 24px 20px 34px;
    border-bottom: 1px solid var(--color-line);
    background: rgba(245, 241, 232, 0.98);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 12px 0;
    font-size: 22px;
    font-weight: 800;
  }

  .header-cta {
    display: none;
  }

  .hero,
  .split-section,
  .why-section,
  .instagram-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 36px);
  }

  .hero-visual {
    min-height: 540px;
  }

  .image-placeholder {
    inset: 0 0 46px 0;
  }

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

  .faq-list {
    margin-left: 0;
  }
}

@media (max-width: 680px) {
  :root {
    --header-height: 68px;
  }

  .site-header {
    padding: 12px 18px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .brand {
    font-size: 14px;
  }

  h1 {
    font-size: clamp(54px, 14.5vw, 68px);
  }

  h2 {
    font-size: clamp(42px, 13vw, 62px);
  }

  .hero {
    gap: 22px;
    padding-bottom: 26px;
  }

  .hero-lead {
    margin-top: 24px;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 270px;
  }

  .image-placeholder {
    min-height: 232px;
    padding: 22px;
  }

  .placeholder-title {
    font-size: 34px;
  }

  .visual-card {
    width: 168px;
    padding: 14px;
  }

  .visual-card strong {
    font-size: 16px;
  }

  .visual-card-one {
    top: 12%;
  }

  .intro-strip,
  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: 230px;
  }

  .service-card span {
    margin-bottom: 42px;
  }

  .instagram-panel {
    padding: 28px 20px;
  }

  summary {
    min-height: 70px;
    font-size: 19px;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .site-footer nav {
    flex-wrap: wrap;
  }
}

/* Bilingual navigation */
.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.language-switch {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--color-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
}

.language-switch a[aria-current="page"] { color: var(--color-ink); }

/* Hero lifestyle photograph */
.hero-photo {
  position: relative;
  min-height: min(72vh, 760px);
  margin: 0;
  overflow: hidden;
  border-radius: 200px 200px 24px 24px;
  background: var(--color-warm);
}

.hero-photo img {
  width: 100%;
  height: 100%;
  min-height: min(72vh, 760px);
  object-fit: cover;
  display: block;
  filter: saturate(.82) contrast(.94);
}

.hero-photo::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 42%;
  background: linear-gradient(transparent, rgba(10, 18, 15, .72));
  pointer-events: none;
}

.hero-photo figcaption {
  position: absolute;
  z-index: 1;
  left: 28px;
  right: 28px;
  bottom: 28px;
  color: var(--color-white);
}

.hero-photo figcaption span,
.hero-photo figcaption strong { display: block; }
.hero-photo figcaption span { margin-bottom: 5px; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.hero-photo figcaption strong { font-size: clamp(16px, 2vw, 22px); }

/* Company and team */
.company-section { background: var(--color-white); }
.company-intro {
  max-width: 680px;
  margin-top: 32px;
  color: var(--color-muted);
  font-family: var(--font-jp);
  font-size: 16px;
  line-height: 1.9;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
  margin-top: clamp(56px, 8vw, 112px);
}
.member-photo {
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 5;
  margin-bottom: 24px;
  overflow: hidden;
  background: linear-gradient(145deg, #e4ded3, #bdb5a8);
  color: rgba(17, 20, 17, .5);
  font-size: 11px;
  letter-spacing: .16em;
}
.member-photo img { width: 100%; height: 100%; object-fit: cover; }
.member-role { margin-bottom: 8px; color: var(--color-green); font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.member-card h3 { font-family: var(--font-jp); font-size: 20px; }
.member-card > p:last-child { margin-top: 13px; color: var(--color-muted); font-family: var(--font-jp); font-size: 13px; line-height: 1.8; }
.company-profile { margin: clamp(56px, 8vw, 112px) 0 0; border-top: 1px solid var(--color-line); }
.company-profile > div { display: grid; grid-template-columns: minmax(150px, 240px) 1fr; gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--color-line); }
.company-profile dt { color: var(--color-muted); font-size: 12px; }
.company-profile dd { margin: 0; font-family: var(--font-jp); font-size: 14px; line-height: 1.7; }

@media (max-width: 1040px) {
  .site-header { grid-template-columns: auto 1fr auto; }
  .header-actions { grid-column: 2; grid-row: 1; justify-self: end; margin-left: auto; }
  .menu-toggle { grid-column: 3; grid-row: 1; }
  .team-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 56px; }
}

@media (max-width: 680px) {
  .header-actions { gap: 12px; }
  .header-actions .header-cta { display: none; }
  .hero-photo,
  .hero-photo img { min-height: 520px; }
  .hero-photo { border-radius: 120px 120px 18px 18px; }
  .team-grid { gap: 40px 14px; }
  .member-photo { margin-bottom: 16px; }
  .member-card h3 { font-size: 17px; }
  .member-card > p:last-child { font-size: 12px; }
  .company-profile > div { grid-template-columns: 1fr; gap: 7px; }
}