:root {
  color-scheme: light;
  --ink: #17251f;
  --muted: #637069;
  --line: #dce3de;
  --paper: #fffdf8;
  --wash: #f3f6f2;
  --brand: #1f6655;
  --brand-soft: #e4f0eb;
  --accent: #d98652;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--wash);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.8;
}

body {
  margin: 0;
}

a {
  color: var(--brand);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 0.14em;
}

a:focus-visible {
  border-radius: 0.2rem;
  outline: 3px solid #f3b489;
  outline-offset: 3px;
}

.site-header,
.site-footer {
  background: #163f34;
  color: #fff;
}

.header-inner,
.footer-inner,
main {
  width: min(100% - 2rem, 72rem);
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.75rem;
  gap: 1.5rem;
}

.brand {
  display: grid;
  color: #fff;
  font-family: Georgia, "Yu Mincho", serif;
  font-size: 1.28rem;
  font-weight: 700;
  line-height: 1.25;
  text-decoration: none;
}

.brand small {
  color: #c3d6cf;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.header-nav,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.1rem;
}

.header-nav a,
.footer-nav a {
  color: #eef7f3;
  font-size: 0.9rem;
}

main {
  padding-block: 3rem 4rem;
}

.hero,
.document,
.card {
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: var(--paper);
  box-shadow: 0 1.25rem 3rem rgba(28, 54, 44, 0.07);
}

.hero,
.document {
  padding: clamp(1.5rem, 5vw, 3.5rem);
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--brand);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

h1,
h2,
h3 {
  font-family: Georgia, "Yu Mincho", serif;
  line-height: 1.35;
}

h1 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2rem, 7vw, 4.25rem);
  letter-spacing: -0.03em;
}

h2 {
  margin: 2.5rem 0 0.75rem;
  font-size: clamp(1.35rem, 4vw, 1.8rem);
}

h3 {
  margin: 0;
  font-size: 1.2rem;
}

.lead {
  max-width: 50rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 2.4vw, 1.16rem);
}

.notice {
  margin: 1.5rem 0 0;
  padding: 1rem 1.15rem;
  border-left: 0.3rem solid var(--accent);
  background: #fff3e9;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.2rem;
}

.card {
  padding: 1.4rem;
}

.card p {
  color: var(--muted);
}

.link-list {
  display: grid;
  gap: 0.65rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.link-list a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  font-weight: 700;
}

.document {
  max-width: 58rem;
  margin-inline: auto;
}

.document h1 {
  font-size: clamp(2rem, 6vw, 3.25rem);
}

.document section + section {
  border-top: 1px solid var(--line);
}

.legal-table {
  margin: 1.5rem 0;
}

.legal-table > div {
  display: grid;
  grid-template-columns: minmax(9rem, 0.34fr) 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.legal-table dt {
  font-weight: 800;
}

.legal-table dd {
  margin: 0;
}

.product-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.product-links article {
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: var(--wash);
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer {
  padding-block: 2rem;
}

.footer-inner {
  display: grid;
  gap: 1rem;
}

.footer-inner p {
  margin: 0;
  color: #c3d6cf;
  font-size: 0.85rem;
}

@media (max-width: 48rem) {
  .header-inner {
    display: grid;
    padding-block: 1rem;
  }

  .grid,
  .product-links {
    grid-template-columns: 1fr;
  }

  .legal-table > div {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  main {
    padding-block: 1.5rem 3rem;
  }
}