:root {
  --ink: #17130f;
  --soil: #3a2b20;
  --clay: #9b704e;
  --moss: #59634b;
  --mist: #f6f1e9;
  --paper: #fffcf7;
  --line: rgba(58, 43, 32, .14);
  --white: #fff;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --max: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.85;
  font-weight: 300;
}
img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 clamp(20px, 4vw, 52px); }

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 76px;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(18px, 4vw, 48px);
  background: rgba(255, 252, 247, .84);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border: 1px solid var(--soil);
  font-family: var(--font-serif);
  font-size: 22px;
}
.brand-name { display: block; font-weight: 500; letter-spacing: .08em; font-size: 14px; }
.brand-sub {
  display: block;
  font-family: var(--font-serif);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--clay);
  line-height: 1;
}
.nav-links { display: flex; gap: 28px; }
.nav-links a, .header-tel {
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(23,19,15,.72);
}
.header-tel {
  padding: 10px 18px;
  border: 1px solid var(--soil);
  color: var(--soil);
}

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 46vw);
  padding-top: 76px;
  position: relative;
  background: var(--mist);
}
.hero-media { position: relative; min-height: 620px; order: 2; }
.hero-media::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(23,19,15,0), rgba(23,19,15,.24));
}
.hero-copy {
  padding: clamp(60px, 9vw, 130px) clamp(24px, 6vw, 88px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.eyebrow, .section-kicker {
  font-family: var(--font-serif);
  color: var(--clay);
  letter-spacing: .22em;
  text-transform: uppercase;
  font-size: 12px;
}
.hero h1 {
  margin-top: 24px;
  font-family: var(--font-serif);
  font-size: clamp(58px, 8vw, 120px);
  line-height: .92;
  font-weight: 400;
  letter-spacing: -.02em;
}
.hero h1 span {
  display: block;
  color: var(--clay);
  font-style: italic;
}
.hero-lead {
  max-width: 560px;
  margin-top: 34px;
  color: rgba(23,19,15,.68);
  font-size: 15px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 36px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 24px;
  border: 1px solid currentColor;
  font-size: 13px;
  letter-spacing: .1em;
  transition: .25s ease;
}
.btn-primary { background: var(--ink); color: var(--white); border-color: var(--ink); }
.btn-primary:hover { background: var(--clay); border-color: var(--clay); }
.btn-ghost { color: var(--soil); }
.btn-ghost:hover { background: var(--soil); color: var(--white); }
.btn-ghost.dark { color: var(--white); border-color: rgba(255,255,255,.42); }
.btn-ghost.dark:hover { background: var(--white); color: var(--ink); }

.hero-proof {
  position: absolute;
  left: clamp(24px, 6vw, 88px);
  right: calc(46vw + clamp(24px, 6vw, 88px));
  bottom: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  max-width: none;
  background: var(--line);
  border: 1px solid var(--line);
}
.hero-proof div { background: rgba(255,252,247,.9); padding: 18px; }
.hero-proof strong { display: block; color: var(--soil); font-size: 15px; }
.hero-proof span { display: block; color: rgba(23,19,15,.56); font-size: 11px; margin-top: 4px; }
.hero-proof span {
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.section { padding: clamp(86px, 12vw, 150px) 0; }
.audit { padding: 70px 0; background: var(--ink); color: var(--white); }
.audit-grid {
  display: grid;
  grid-template-columns: .82fr 1fr;
  gap: clamp(32px, 6vw, 90px);
  align-items: start;
}
.audit h2, .section-head h2, .feature-text h2, .strength h2, .company h2 {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 68px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -.02em;
  margin-top: 12px;
}
.audit-list p { color: rgba(255,255,255,.66); margin-bottom: 16px; }

.feature-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(36px, 7vw, 96px);
  align-items: center;
}
.feature-text p {
  margin-top: 24px;
  color: rgba(23,19,15,.68);
}
.feature-points {
  list-style: none;
  margin-top: 30px;
  display: grid;
  gap: 10px;
}
.feature-points li {
  padding: 14px 16px;
  border-left: 2px solid var(--clay);
  background: var(--mist);
  font-size: 14px;
}
.craft-card {
  position: relative;
  min-height: 560px;
  overflow: hidden;
}
.craft-caption {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  padding: 22px;
  background: rgba(255,252,247,.9);
  backdrop-filter: blur(10px);
}
.craft-caption span, .work-card span {
  font-family: var(--font-serif);
  color: var(--clay);
  letter-spacing: .18em;
  text-transform: uppercase;
  font-size: 12px;
}
.craft-caption strong { display: block; margin-top: 6px; font-weight: 500; }

.works { background: var(--mist); }
.section-head { margin-bottom: 46px; }
.section-head.centered { text-align: center; }
.works-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}
.work-card {
  position: relative;
  min-height: 360px;
  grid-column: span 4;
  overflow: hidden;
  background: var(--soil);
}
.work-card.large { grid-column: span 7; min-height: 520px; }
.work-card.wide { grid-column: span 5; min-height: 520px; }
.work-card::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(23,19,15,0) 35%, rgba(23,19,15,.82));
}
.work-card div {
  position: absolute;
  left: 22px; right: 22px; bottom: 22px;
  z-index: 1;
  color: var(--white);
}
.work-card h3 {
  margin-top: 8px;
  font-weight: 500;
  line-height: 1.6;
  font-size: 18px;
}

.strength {
  background: var(--ink);
  color: var(--white);
}
.strength-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: clamp(36px, 7vw, 90px);
}
.strength-cards { display: grid; gap: 14px; }
.strength-cards article {
  border: 1px solid rgba(255,255,255,.14);
  padding: 28px;
  background: rgba(255,255,255,.035);
}
.strength-cards span {
  font-family: var(--font-serif);
  color: var(--clay);
  font-size: 24px;
}
.strength-cards h3 { margin-top: 8px; font-size: 18px; }
.strength-cards p { margin-top: 10px; color: rgba(255,255,255,.62); font-size: 14px; }

.flow-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.flow-list li { background: var(--paper); padding: 26px 20px; min-height: 190px; }
.flow-list span { font-family: var(--font-serif); color: var(--clay); font-size: 24px; }
.flow-list strong { display: block; margin-top: 22px; font-size: 17px; }
.flow-list p { margin-top: 8px; color: rgba(23,19,15,.6); font-size: 13px; }

.company { background: var(--mist); }
.company-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 30px;
  align-items: stretch;
}
.company-list { margin-top: 26px; display: grid; gap: 0; }
.company-list div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.company-list dt { color: var(--clay); font-size: 12px; letter-spacing: .14em; }
.company-list dd { color: rgba(23,19,15,.72); font-size: 14px; }
.company-list a { border-bottom: 1px solid var(--clay); }
.map-wrap {
  min-height: 460px;
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--paper);
}
.map-wrap iframe { width: 100%; height: 100%; min-height: 460px; border: 0; display: block; }

.contact {
  background: var(--soil);
  color: var(--white);
  padding: clamp(86px, 12vw, 150px) 0;
}
.contact-inner { text-align: center; max-width: 900px; }
.contact h2 {
  font-family: var(--font-serif);
  font-size: clamp(44px, 7vw, 92px);
  font-weight: 400;
  line-height: 1;
  margin-top: 12px;
}
.contact p:not(.section-kicker) { color: rgba(255,255,255,.68); margin-top: 22px; }
.contact-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 34px;
}
.contact-tel {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5vw, 58px);
  color: var(--white);
  width: 100%;
}
.footer {
  background: #0f0c09;
  color: rgba(255,255,255,.5);
  padding: 26px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 12px;
  letter-spacing: .08em;
}

@media (max-width: 900px) {
  .site-header { height: 68px; }
  .nav-links { display: none; }
  .header-tel { display: none; }
  .hero {
    grid-template-columns: 1fr;
    padding-top: 68px;
  }
  .hero-media { order: 0; min-height: 42svh; }
  .hero-copy { padding: 42px 24px 170px; }
  .hero-proof { grid-template-columns: 1fr; bottom: 18px; left: 20px; right: 20px; }
  .audit-grid, .feature-grid, .strength-layout, .company-grid { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: 1fr; }
  .work-card, .work-card.large, .work-card.wide { grid-column: auto; min-height: 360px; }
  .flow-list { grid-template-columns: 1fr; }
  .company-list div { grid-template-columns: 1fr; gap: 4px; }
  .footer-inner { flex-direction: column; }
}

@media (max-width: 520px) {
  .brand-sub { display: none; }
  .brand-name { font-size: 13px; }
  .hero h1 { font-size: 54px; }
  .hero-copy { padding-left: 20px; padding-right: 20px; }
  .btn { width: 100%; }
  .craft-card { min-height: 420px; }
}