:root {
  color-scheme: light;
  --ink: #14221f;
  --muted: #5d6965;
  --line: #dce4df;
  --paper: #f8faf7;
  --surface: #ffffff;
  --accent: #14746f;
  --accent-strong: #0b4f4a;
  --gold: #c59a42;
  --moss: #758f4f;
  --shadow: 0 24px 80px rgba(20, 34, 31, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", YuGothic,
    "Noto Sans JP", sans-serif;
  line-height: 1.75;
  background:
    linear-gradient(90deg, rgba(20, 116, 111, 0.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(117, 143, 79, 0.055) 1px, transparent 1px),
    var(--paper);
  background-size: 38px 38px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 16px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(220, 228, 223, 0.78);
  background: rgba(248, 250, 247, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  grid-template-columns: repeat(2, 12px);
  grid-template-rows: repeat(2, 12px);
  gap: 3px;
  inline-size: 31px;
  block-size: 31px;
  padding: 3px;
  border: 1px solid rgba(20, 116, 111, 0.24);
  background: var(--surface);
}

.brand-mark span {
  display: block;
  background: var(--accent);
}

.brand-mark span:nth-child(2),
.brand-mark span:nth-child(3) {
  background: var(--gold);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 32px);
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 600;
}

.nav a {
  transition: color 160ms ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--accent-strong);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
  align-items: center;
  gap: clamp(36px, 7vw, 88px);
  min-height: calc(100svh - 72px);
  padding: clamp(58px, 9vw, 112px) clamp(20px, 5vw, 72px) 72px;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow,
.section-label {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(2.5rem, 7vw, 5.8rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.25;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.35rem;
  line-height: 1.35;
  letter-spacing: 0;
}

.lead {
  max-width: 620px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.5vw, 1.2rem);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  font-weight: 700;
  line-height: 1.3;
  transition:
    background 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button.primary {
  color: #ffffff;
  background: var(--accent);
}

.button.secondary {
  color: var(--accent-strong);
  background: rgba(255, 255, 255, 0.64);
}

.hero-visual {
  min-height: 430px;
  display: grid;
  place-items: center;
}

.woven-panel {
  position: relative;
  inline-size: min(100%, 520px);
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid rgba(20, 34, 31, 0.1);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(20, 116, 111, 0.14) 48%, transparent 48% 52%, rgba(197, 154, 66, 0.22) 52%),
    linear-gradient(0deg, rgba(117, 143, 79, 0.18) 48%, transparent 48% 52%, rgba(20, 116, 111, 0.12) 52%),
    #ffffff;
  background-size: 84px 84px;
  box-shadow: var(--shadow);
}

.woven-panel::before,
.woven-panel::after {
  content: "";
  position: absolute;
  inset: 11%;
  border: 1px solid rgba(20, 34, 31, 0.12);
}

.woven-panel::after {
  inset: auto 12% 12% auto;
  inline-size: 34%;
  aspect-ratio: 1;
  border-color: rgba(20, 116, 111, 0.28);
  background: rgba(255, 255, 255, 0.64);
}

.tile {
  position: absolute;
  display: block;
  border-radius: 6px;
  background: rgba(20, 116, 111, 0.88);
}

.tile-a {
  inset: 16% auto auto 16%;
  inline-size: 34%;
  block-size: 16%;
}

.tile-b {
  inset: 16% 18% auto auto;
  inline-size: 16%;
  block-size: 44%;
  background: rgba(197, 154, 66, 0.88);
}

.tile-c {
  inset: auto auto 18% 20%;
  inline-size: 44%;
  block-size: 16%;
  background: rgba(117, 143, 79, 0.9);
}

.tile-d {
  inset: auto 22% 24% auto;
  inline-size: 18%;
  block-size: 18%;
  background: rgba(20, 34, 31, 0.82);
}

.section {
  padding: clamp(54px, 8vw, 96px) clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(180px, 0.42fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 88px);
  align-items: start;
  background: rgba(255, 255, 255, 0.7);
}

.business-list {
  max-width: 760px;
  display: grid;
  gap: 18px;
}

.business-panel {
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 18px 48px rgba(20, 34, 31, 0.08);
}

.business-panel p {
  margin-bottom: 0;
  color: var(--muted);
}

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

.company-list div {
  display: grid;
  grid-template-columns: minmax(112px, 0.28fr) minmax(0, 1fr);
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.company-list dt {
  color: var(--muted);
  font-weight: 700;
}

.company-list dd {
  margin: 0;
  font-weight: 700;
}

.company-list a {
  color: var(--accent-strong);
  overflow-wrap: anywhere;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--accent-strong);
  overflow-wrap: anywhere;
}

@media (max-width: 860px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    font-size: 0.88rem;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 48px;
  }

  .hero-visual {
    min-height: 0;
  }

  .woven-panel {
    max-inline-size: 420px;
  }

  .two-column {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .brand {
    white-space: normal;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  h1 {
    font-size: 2.38rem;
  }

  .button {
    width: 100%;
  }

  .company-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .site-footer {
    flex-direction: column;
  }
}