:root {
  --black: #050505;
  --ink: #111111;
  --steel: #4d6b72;
  --steel-dark: #25383d;
  --paper: #f6f7f5;
  --line: rgba(17, 17, 17, 0.16);
  --white-line: rgba(255, 255, 255, 0.16);
  --muted: #686868;
  --silver: #d7dadd;
  --accent: #8fa5ab;
  --font-body: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif;
  --font-sans: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --font-brush: "Yuji Syuku", "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body.menu-open {
  overflow: hidden;
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  padding: 0 clamp(20px, 4vw, 56px);
  color: #fff;
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
  background: rgba(246, 247, 245, 0.94);
  box-shadow: 0 1px 0 var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  position: relative;
  width: clamp(174px, 20vw, 278px);
  z-index: 22;
}

.brand img {
  filter: invert(1);
  transition: filter 180ms ease;
}

.site-header.is-scrolled .brand img,
.site-header.is-open .brand img {
  filter: none;
}

.site-nav {
  display: flex;
  gap: clamp(22px, 3vw, 42px);
  align-items: center;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding-block: 8px;
}

.site-nav a::after {
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 100%;
  height: 1px;
  content: "";
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
  position: relative;
  z-index: 22;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.menu-button span {
  position: absolute;
  left: 9px;
  width: 26px;
  height: 2px;
  background: currentColor;
  transition: transform 180ms ease, top 180ms ease;
}

.menu-button span:first-child {
  top: 16px;
}

.menu-button span:last-child {
  top: 27px;
}

.site-header.is-open .menu-button span:first-child {
  top: 22px;
  transform: rotate(35deg);
}

.site-header.is-open .menu-button span:last-child {
  top: 22px;
  transform: rotate(-35deg);
}

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 18;
  display: grid;
  align-content: center;
  gap: 24px;
  padding: 96px 28px 40px;
  color: var(--ink);
  background: var(--paper);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
  transition: opacity 180ms ease, transform 180ms ease;
}

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

.mobile-nav a {
  border-bottom: 1px solid var(--line);
  padding-bottom: 20px;
  font-family: var(--font-brush);
  font-size: 52px;
  font-weight: 400;
  line-height: 1;
}

.section-dark {
  color: #fff;
  background: var(--black);
}

.section-light {
  background: #fff;
}

.hero {
  position: relative;
  min-height: 96svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 150px clamp(22px, 5vw, 72px) 82px;
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(5, 5, 5, 0.96) 0%, rgba(5, 5, 5, 0.82) 44%, rgba(5, 5, 5, 0.46) 100%),
    radial-gradient(circle at 78% 18%, rgba(143, 165, 171, 0.34), transparent 34%),
    linear-gradient(135deg, transparent 0 42%, rgba(255, 255, 255, 0.12) 42.2% 42.6%, transparent 42.8% 100%);
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 3;
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 800;
}

.hero h1,
.statement h2,
.split h2,
.section-heading h2,
.field-note h2,
.recruit h2,
.contact h2 {
  margin: 0;
  font-family: var(--font-brush);
  font-weight: 400;
  line-height: 1.16;
  text-wrap: balance;
}

.hero h1 {
  max-width: 800px;
  font-size: 118px;
  text-shadow: 0 18px 34px rgba(0, 0, 0, 0.42);
}

.statement h2,
.section-heading h2,
.field-note h2,
.recruit h2,
.contact h2 {
  text-shadow: 0 10px 28px rgba(17, 17, 17, 0.1);
}

.section-dark .section-heading h2,
.contact.section-dark h2 {
  text-shadow: 0 14px 34px rgba(0, 0, 0, 0.45);
}

.hero-copy {
  max-width: 620px;
  margin: 30px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  font-weight: 600;
  line-height: 2;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 174px;
  min-height: 52px;
  padding: 14px 22px;
  border: 1px solid currentColor;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

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

.button-light {
  color: var(--black);
  background: #fff;
  border-color: #fff;
}

.button-outline {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.46);
}

.button-dark {
  color: #fff;
  background: var(--black);
  border-color: var(--black);
}

.hero-mark {
  position: absolute;
  right: min(8vw, 80px);
  top: 12%;
  z-index: 2;
  width: clamp(360px, 48vw, 680px);
  opacity: 0.42;
  transform: rotate(-10deg);
}

.hero-logo {
  position: absolute;
  right: -6vw;
  bottom: 5vh;
  z-index: 2;
  width: min(78vw, 960px);
  opacity: 0.26;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.proof-strip div {
  min-height: 190px;
  padding: 34px clamp(22px, 4vw, 56px);
  border-right: 1px solid var(--line);
}

.proof-strip div:last-child {
  border-right: 0;
}

.proof-strip span {
  display: block;
  margin-bottom: 28px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
}

.proof-strip strong {
  display: block;
  font-family: var(--font-brush);
  font-size: 30px;
  font-weight: 400;
  line-height: 1.2;
}

.proof-strip p {
  max-width: 360px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.8;
}

.statement,
.split,
.values,
.business,
.field-note,
.recruit,
.company,
.contact {
  padding: clamp(82px, 11vw, 150px) clamp(22px, 5vw, 72px);
}

.statement,
.company {
  display: grid;
  grid-template-columns: minmax(180px, 0.34fr) minmax(0, 1fr);
  gap: clamp(36px, 7vw, 100px);
  max-width: calc(var(--max) + 144px);
  margin-inline: auto;
}

.section-label {
  color: var(--muted);
}

.section-label span {
  display: block;
  margin-bottom: 12px;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 900;
}

.section-label small {
  font-size: 13px;
  font-weight: 700;
}

.statement-body {
  max-width: 850px;
}

.statement h2 {
  font-size: 82px;
}

.statement p,
.split p,
.recruit p,
.contact p {
  color: var(--muted);
  font-size: 16px;
  font-weight: 600;
  line-height: 2;
}

.statement p {
  max-width: 700px;
  margin: 32px 0 0;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding-inline: max(22px, calc((100vw - var(--max)) / 2));
  background: var(--line);
}

.split article {
  min-height: 430px;
  padding: clamp(36px, 5vw, 68px);
  background: #fff;
}

.split h2 {
  font-size: 54px;
}

.split p {
  max-width: 540px;
  margin: 30px 0 0;
}

.section-heading {
  max-width: var(--max);
  margin: 0 auto clamp(38px, 6vw, 72px);
}

.section-heading h2 {
  font-size: 68px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  max-width: var(--max);
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.value-grid article {
  min-height: 280px;
  padding: 28px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.value-grid span,
.business-list span {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
}

.value-grid h3,
.business-list h3 {
  margin: 0;
  font-family: var(--font-brush);
  font-size: 22px;
  font-weight: 400;
  line-height: 1.45;
}

.value-grid p,
.business-list p {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.85;
}

.business {
  position: relative;
  overflow: hidden;
}

.business::before {
  position: absolute;
  inset: auto -12vw -20vw auto;
  width: 55vw;
  height: 55vw;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.18);
  transform: rotate(18deg);
}

.business .section-heading,
.business-list {
  position: relative;
  z-index: 1;
}

.business-list {
  max-width: var(--max);
  margin: 0 auto;
  border-top: 1px solid var(--white-line);
}

.business-list article {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 24px;
  padding: clamp(26px, 4vw, 46px) 0;
  border-bottom: 1px solid var(--white-line);
}

.business-list h3 {
  font-size: 40px;
}

.business-list p {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 16px;
}

.field-note {
  background:
    linear-gradient(90deg, rgba(246, 247, 245, 0.98), rgba(246, 247, 245, 0.86)),
    linear-gradient(135deg, transparent 0 52%, rgba(77, 107, 114, 0.16) 52.2% 52.7%, transparent 52.9% 100%);
}

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

.field-note h2 {
  max-width: 820px;
  font-size: 68px;
}

.field-note p:not(.eyebrow) {
  max-width: 780px;
  margin: 32px 0 0;
  color: var(--muted);
  font-size: 17px;
  font-weight: 700;
  line-height: 2;
}

.recruit {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  max-width: calc(var(--max) + 144px);
  margin: 0 auto;
}

.recruit h2 {
  font-size: 72px;
}

.recruit p {
  max-width: 640px;
  margin: 28px 0 0;
}

.company {
  max-width: none;
  margin-inline: 0;
  padding-inline: max(22px, calc((100vw - var(--max)) / 2));
}

.company-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.company-list div {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 28px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.company-list dt {
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 800;
}

.company-list dd {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  line-height: 1.6;
}

.contact {
  position: relative;
  min-height: 560px;
  display: grid;
  align-items: center;
  overflow: hidden;
}

.contact-logo {
  position: absolute;
  right: -12vw;
  top: 50%;
  width: min(90vw, 860px);
  opacity: 0.22;
  transform: translateY(-50%);
}

.contact-body {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}

.contact h2 {
  max-width: 850px;
  font-size: 68px;
}

.contact .button {
  margin-top: 38px;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(180px, 280px) 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 38px clamp(22px, 5vw, 72px);
  background: var(--paper);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px 32px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

@media (max-width: 980px) {
  .site-nav {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .split,
  .value-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .recruit {
    display: grid;
  }

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

  .site-footer nav {
    justify-content: start;
  }

  .proof-strip {
    grid-template-columns: 1fr;
  }

  .proof-strip div {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-strip div:last-child {
    border-bottom: 0;
  }

  .hero h1 {
    font-size: 84px;
  }

  .statement h2 {
    font-size: 64px;
  }

  .split h2,
  .business-list h3 {
    font-size: 42px;
  }

  .section-heading h2,
  .field-note h2,
  .recruit h2,
  .contact h2 {
    font-size: 56px;
  }
}

@media (max-width: 720px) {
  .site-header {
    height: 68px;
    padding-inline: 18px;
  }

  .brand {
    width: 178px;
  }

  .mobile-nav a {
    font-size: 40px;
  }

  .hero {
    min-height: 92svh;
    padding: 118px 22px 54px;
  }

  .hero::before {
    background:
      linear-gradient(90deg, rgba(5, 5, 5, 0.96), rgba(5, 5, 5, 0.72)),
      radial-gradient(circle at 85% 15%, rgba(143, 165, 171, 0.26), transparent 38%);
  }

  .hero-mark {
    right: -120px;
    top: 10%;
    width: 420px;
  }

  .hero-logo {
    right: -170px;
    bottom: 10vh;
    width: 650px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero h1 {
    font-size: 58px;
  }

  .statement h2,
  .section-heading h2,
  .field-note h2,
  .recruit h2,
  .contact h2 {
    font-size: 42px;
  }

  .split h2,
  .business-list h3 {
    font-size: 32px;
  }

  .company-list dd {
    font-size: 20px;
  }

  .statement,
  .company,
  .split,
  .value-grid,
  .business-list article,
  .company-list div {
    grid-template-columns: 1fr;
  }

  .split {
    padding-inline: 0;
  }

  .split article {
    min-height: auto;
  }

  .value-grid {
    border-left: 0;
  }

  .value-grid article {
    min-height: 220px;
    border-left: 0;
    border-right: 0;
  }

  .business-list article {
    gap: 0;
  }

  .company-list div {
    gap: 8px;
  }

  .contact {
    min-height: 520px;
  }

  .contact-logo {
    right: -210px;
    width: 650px;
  }
}

@media (max-width: 420px) {
  .brand {
    width: 154px;
  }

  .hero h1 {
    font-size: 48px;
  }

  .hero-copy,
  .statement p,
  .split p,
  .recruit p,
  .business-list p {
    font-size: 15px;
  }

  .value-grid {
    grid-template-columns: 1fr;
  }
}