:root {
  --ink: #17201d;
  --muted: #5d6762;
  --line: #d9ded8;
  --paper: #f7f7f3;
  --white: #ffffff;
  --green: #17483e;
  --teal: #2d746f;
  --brass: #9a7a38;
  --clay: #a65b45;
  --shadow: 0 18px 48px rgba(19, 26, 22, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    "Yu Gothic",
    "Hiragino Kaku Gothic ProN",
    Meiryo,
    system-ui,
    sans-serif;
  background: var(--paper);
  line-height: 1.75;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  display: flex;
  width: 100%;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(20px, 5vw, 72px);
  color: var(--white);
  background: linear-gradient(180deg, rgba(10, 15, 13, 0.64), rgba(10, 15, 13, 0));
}

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

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  font-size: 13px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  border-bottom: 1px solid transparent;
  padding-block: 4px;
}

.site-nav a:hover {
  border-color: currentColor;
}

.hero {
  position: relative;
  display: grid;
  min-height: 86vh;
  align-items: center;
  overflow: hidden;
  color: var(--white);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("./assets/hero-workspace.png");
  background-position: center;
  background-size: cover;
  transform: scale(1.01);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(16, 21, 18, 0.82) 0%, rgba(16, 21, 18, 0.58) 32%, rgba(16, 21, 18, 0.18) 68%),
    linear-gradient(180deg, rgba(16, 21, 18, 0.2), rgba(16, 21, 18, 0.62));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(880px, calc(100% - 40px));
  margin-inline: clamp(20px, 7vw, 96px);
  padding-top: 58px;
}

.status,
.eyebrow {
  margin: 0 0 12px;
  color: #d4e4dd;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 860px;
  font-size: clamp(42px, 6.4vw, 78px);
  line-height: 1.08;
  letter-spacing: 0;
}

.lead {
  max-width: 620px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(17px, 2.1vw, 24px);
  line-height: 1.8;
}

.section-band {
  padding: clamp(54px, 8vw, 96px) clamp(20px, 5vw, 72px);
}

.section-inner {
  width: min(1120px, 100%);
  margin-inline: auto;
}

.intro {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.intro-copy {
  max-width: 1120px;
}

.intro-copy p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 1.8vw, 20px);
  line-height: 2;
}

.business {
  background: var(--paper);
}

.section-heading {
  margin-bottom: 30px;
}

h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.25;
  letter-spacing: 0;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.business-item {
  min-height: 284px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.item-index {
  display: block;
  margin-bottom: 28px;
  color: var(--teal);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
}

h3 {
  margin: 0 0 14px;
  font-size: 19px;
  line-height: 1.45;
  letter-spacing: 0;
}

.business-item p,
.contact p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.company {
  background: #eef3ef;
  border-block: 1px solid var(--line);
}

.company-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(28px, 7vw, 96px);
  align-items: start;
}

.company-list {
  margin: 0;
  border-top: 1px solid #cbd5cf;
}

.company-list div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  border-bottom: 1px solid #cbd5cf;
  padding: 20px 0;
}

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

.company-list dd {
  margin: 0;
  color: var(--ink);
}

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

.contact-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(28px, 7vw, 96px);
  align-items: start;
}

.contact p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
}

@media (max-width: 920px) {
  .site-header {
    position: absolute;
  }

  .site-nav {
    display: none;
  }

  .hero {
    min-height: 78vh;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(16, 21, 18, 0.84), rgba(16, 21, 18, 0.38)),
      linear-gradient(180deg, rgba(16, 21, 18, 0.22), rgba(16, 21, 18, 0.72));
  }

  .company-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 620px) {
  .site-header {
    min-height: 58px;
    padding-inline: 18px;
  }

  .brand {
    gap: 10px;
    font-size: 14px;
  }

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

  .hero {
    min-height: 76vh;
  }

  .hero-media {
    background-position: 60% center;
  }

  .hero-content {
    width: calc(100% - 36px);
    margin-inline: 18px;
  }

  h1 {
    font-size: 40px;
  }

  .lead {
    font-size: 17px;
  }

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

  .business-item {
    min-height: 0;
  }

  .company-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}