:root {
  --ink: #17231d;
  --muted: #5f6c65;
  --paper: #f4f2eb;
  --white: #fffefa;
  --green: #174d3c;
  --mint: #b9e4cb;
  --line: rgba(23, 35, 29, .16);
  --serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  --sans: Inter, "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  padding: 0 clamp(24px, 5vw, 80px);
  background: rgba(244, 242, 235, .9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--ink);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .18em;
  text-decoration: none;
}
.brand-mark { color: var(--green); font-size: 22px; }
nav { display: flex; align-items: center; gap: clamp(18px, 3vw, 42px); }
nav a { font-size: 13px; font-weight: 700; text-decoration: none; }
.nav-contact { padding: 8px 18px; color: var(--white); background: var(--green); border-radius: 999px; }

.hero {
  min-height: min(760px, calc(100vh - 76px));
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(340px, .88fr);
  align-items: center;
  gap: 40px;
  padding: clamp(72px, 11vw, 150px) clamp(24px, 8vw, 128px);
  overflow: hidden;
}
.hero-copy { max-width: 760px; }
.eyebrow { margin: 0 0 22px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .2em; }
h1, h2, h3 { margin-top: 0; }
h1 {
  margin-bottom: 28px;
  font-family: var(--serif);
  font-size: clamp(48px, 5.7vw, 82px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -.035em;
}
.headline-line { display: block; }
.hero-lead { max-width: 660px; margin: 0 0 12px; font-size: clamp(17px, 1.7vw, 22px); }
.hero-en { max-width: 620px; margin: 0 0 38px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.primary-link, .email-link {
  display: inline-flex;
  gap: 28px;
  align-items: center;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--ink);
  font-weight: 750;
  text-decoration: none;
}
.hero-art { position: relative; aspect-ratio: 1; max-width: 590px; width: 100%; justify-self: center; }
.orbit { position: absolute; border: 1px solid rgba(23, 77, 60, .35); border-radius: 50%; }
.orbit-one { inset: 11%; transform: rotate(18deg) scaleY(.63); }
.orbit-two { inset: 22% 4%; transform: rotate(-37deg) scaleY(.7); }
.star { position: absolute; color: var(--green); line-height: 1; }
.star-large { top: 26%; left: 29%; font-size: clamp(130px, 18vw, 260px); filter: drop-shadow(25px 30px 0 var(--mint)); }
.star-small { right: 10%; bottom: 12%; font-size: 38px; }
.dot { position: absolute; width: 10px; height: 10px; background: var(--green); border-radius: 50%; }
.dot-one { top: 18%; right: 18%; }
.dot-two { bottom: 23%; left: 8%; width: 6px; height: 6px; }

.section { padding: clamp(82px, 11vw, 150px) clamp(24px, 8vw, 128px); border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: minmax(160px, .4fr) 1fr; align-items: end; margin-bottom: 62px; }
.section-heading .eyebrow { margin: 0; }
h2 { font-family: var(--serif); font-size: clamp(36px, 5vw, 68px); font-weight: 600; line-height: 1.2; letter-spacing: -.025em; }
.business-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.business-card { min-height: 390px; display: flex; flex-direction: column; padding: clamp(30px, 4vw, 56px); background: var(--white); }
.business-card h3 { margin-bottom: 22px; font-family: var(--serif); font-size: clamp(27px, 3vw, 40px); font-weight: 600; }
.business-card p { max-width: 540px; }
.business-card a { margin-top: auto; width: fit-content; font-size: 14px; font-weight: 750; text-decoration-thickness: 1px; text-underline-offset: 6px; }
.card-number { margin: 0 0 58px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.accent-card { color: var(--white); background: var(--green); }
.accent-card .card-number, .accent-card .card-en { color: var(--mint); }
.card-en { margin-top: 20px; font-size: 13px; line-height: 1.7; opacity: .85; }

.company-section { background: var(--white); }
.company-list { margin: 0 0 0 min(30vw, 400px); border-top: 1px solid var(--line); }
.company-list > div { display: grid; grid-template-columns: minmax(120px, .3fr) 1fr; gap: 20px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.company-list dt { color: var(--muted); font-size: 13px; font-weight: 700; }
.company-list dd { margin: 0; font-size: 15px; }
.company-list dd span { color: var(--muted); font-size: 13px; line-height: 1.65; }
.company-list small { color: var(--muted); }

.contact-section { padding: clamp(90px, 12vw, 160px) 24px; color: var(--white); text-align: center; background: var(--green); }
.contact-section .eyebrow { color: var(--mint); }
.contact-section h2 { margin-bottom: 18px; }
.contact-section p:not(.eyebrow) { margin: 0 0 34px; color: rgba(255,255,255,.8); }
.email-link { color: var(--white); border-color: rgba(255,255,255,.65); font-size: clamp(18px, 2.5vw, 28px); }
footer { display: flex; justify-content: space-between; align-items: center; padding: 32px clamp(24px, 5vw, 80px); background: #10241d; color: rgba(255,255,255,.62); }
.footer-brand { color: var(--white); }
footer p { margin: 0; font-size: 12px; }

@media (max-width: 800px) {
  .site-header { height: 66px; }
  nav a:not(.nav-contact) { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 82px; }
  .hero-art { max-width: 360px; margin-top: -24px; }
  .business-grid { grid-template-columns: 1fr; }
  .business-card { min-height: 330px; }
  .company-list { margin-left: 0; }
  .section-heading { grid-template-columns: 1fr; gap: 10px; }
  footer { gap: 24px; align-items: flex-start; flex-direction: column; }
}

@media (min-width: 801px) {
  .headline-line { white-space: nowrap; }
}

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