:root {
  color-scheme: light;
  --ink: #263b3a;
  --muted: #60716f;
  --brand: #28766f;
  --brand-dark: #1e5f59;
  --brand-pale: #edf7f5;
  --line: #d8e5e2;
  --surface: #ffffff;
  --page: #f7faf9;
  --focus: #0b65d8;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  overflow-wrap: anywhere;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--page);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
  font-size: 1rem;
  line-height: 1.9;
}

a {
  color: var(--brand-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 0.13em;
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
  border-radius: 0.2rem;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  padding: 0.65rem 1rem;
  color: #fff;
  background: var(--ink);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.header-inner,
.policy,
.footer-inner {
  width: min(100% - 2rem, 47rem);
  margin-inline: auto;
}

.header-inner {
  padding-block: 1.1rem;
}

.brand {
  margin: 0;
  color: var(--brand-dark);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.policy {
  padding-block: 2.5rem 4rem;
}

.page-heading {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

h1,
h2 {
  color: #1e3432;
  line-height: 1.45;
}

h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.75rem, 7vw, 2.45rem);
  letter-spacing: 0.04em;
}

.lead {
  margin: 0;
  color: #405452;
  font-size: 1.05rem;
}

.policy-introduction {
  margin-block: 2.25rem 3.5rem;
}

.policy-section {
  margin-top: 3.5rem;
  scroll-margin-top: 1rem;
}

h2 {
  margin: 0 0 1.25rem;
  padding-left: 0.85rem;
  border-left: 4px solid var(--brand);
  font-size: clamp(1.25rem, 5vw, 1.55rem);
}

p {
  margin: 0 0 1.15rem;
}

.policy-list {
  margin: 1.25rem 0;
  padding: 1.35rem 1.25rem 1.35rem 2.75rem;
  background: var(--brand-pale);
  border-radius: 0.65rem;
}

.policy-list li {
  padding-left: 0.15rem;
}

.policy-list li + li {
  margin-top: 0.35rem;
}

.action-button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  color: #fff;
  background: var(--brand);
  border: 2px solid var(--brand);
  border-radius: 0.45rem;
  font-weight: 700;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
}

.action-button:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
}

.action-button[aria-disabled="true"] {
  opacity: 0.6;
  cursor: default;
}

.site-footer {
  padding-block: 2.25rem;
  color: var(--muted);
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.official-site-link {
  color: var(--brand-dark);
  background: var(--surface);
}

@media (max-width: 37.5rem) {
  .header-inner,
  .policy,
  .footer-inner {
    width: min(100% - 2.5rem, 47rem);
  }

  .policy {
    padding-block: 2rem 3.5rem;
  }

  .policy-section {
    margin-top: 3rem;
  }

  .action-button {
    width: 100%;
  }

}

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

@media print {
  body {
    background: #fff;
  }

  .skip-link,
  .official-site-link {
    display: none;
  }

  .policy {
    width: 100%;
    padding-block: 1rem;
  }
}