:root {
  color-scheme: light;
  --ink: #18201f;
  --muted: #5f6b68;
  --line: #d9dfdc;
  --paper: #f7f8f5;
  --panel: #ffffff;
  --accent: #0f766e;
  --accent-dark: #0b4f4b;
  --blue: #315b9a;
  --amber: #a15c14;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
}

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

.site-header,
.site-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand,
.nav,
.actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 0.78rem;
}

.nav {
  gap: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--ink);
}

main {
  overflow: hidden;
}

.hero {
  width: min(1120px, calc(100% - 40px));
  min-height: calc(100vh - 72px);
  margin: 0 auto;
  padding: 72px 0 48px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.88fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(2.2rem, 6vw, 4.7rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.08rem;
}

.lead {
  max-width: 680px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 1.12rem;
}

.actions {
  gap: 12px;
  flex-wrap: wrap;
}

.primary,
.secondary {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 800;
}

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

.secondary {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.product-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 24px 60px rgba(24, 32, 31, 0.12);
  overflow: hidden;
}

.panel-top {
  min-height: 52px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
}

.metric-row div {
  min-width: 0;
  padding: 18px;
  border-right: 1px solid var(--line);
}

.metric-row div:last-child {
  border-right: 0;
}

.metric-label {
  display: block;
  color: var(--muted);
  font-size: 0.74rem;
}

.metric-row strong {
  display: block;
  margin-top: 6px;
  font-size: 1.7rem;
  line-height: 1;
}

.work-list {
  padding: 12px;
}

.work-item {
  padding: 14px;
  display: grid;
  gap: 4px;
  border-bottom: 1px solid var(--line);
}

.work-item:last-child {
  border-bottom: 0;
}

.work-item > span:last-child {
  color: var(--muted);
  font-size: 0.88rem;
}

.status {
  width: fit-content;
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 0.74rem;
  font-weight: 800;
}

.ready {
  background: #def7ec;
  color: #0b4f4b;
}

.review {
  background: #e6eefc;
  color: var(--blue);
}

.draft {
  background: #f8ebd8;
  color: var(--amber);
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 80px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 28px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-grid article {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.feature-grid p,
.operations p,
.routing-list dd {
  color: var(--muted);
}

.operations {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1fr);
  gap: 56px;
  align-items: start;
}

.routing-list {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

.routing-list div {
  padding: 20px;
  border-bottom: 1px solid var(--line);
}

.routing-list div:last-child {
  border-bottom: 0;
}

.routing-list dt {
  margin-bottom: 4px;
  font-weight: 800;
}

.routing-list dd {
  margin: 0;
}

.site-footer {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 920px) {
  .hero,
  .operations {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 44px;
  }

  .product-panel {
    max-width: 640px;
  }

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

@media (max-width: 640px) {
  .site-header,
  .site-footer,
  .hero,
  .section {
    width: min(100% - 28px, 1120px);
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .metric-row {
    grid-template-columns: 1fr;
  }

  .metric-row div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metric-row div:last-child {
    border-bottom: 0;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
  }
}