:root {
  color-scheme: light;
  --color-page: #f7f5ef;
  --color-surface: #fffefa;
  --color-ink: #26352e;
  --color-muted: #52645b;
  --color-border: #d8e0d8;
  --color-accent: #315d49;
  --color-accent-hover: #244735;
  --color-accent-soft: #eaf0e9;
  --font-system: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, sans-serif;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --radius-small: 0.5rem;
  --radius-medium: 1rem;
  --radius-large: 1.5rem;
  --shadow-soft: 0 0.25rem 1.25rem rgb(38 53 46 / 0.055);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 20rem;
  background: var(--color-page);
}

body {
  min-width: 20rem;
  margin: 0;
  background: var(--color-page);
  color: var(--color-ink);
  font-family: var(--font-system);
  font-size: 1rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

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

a:hover {
  color: var(--color-accent-hover);
}

a:focus-visible,
summary:focus-visible {
  outline: 0.2rem solid var(--color-accent);
  outline-offset: 0.2rem;
  border-radius: var(--radius-small);
}

.skip-link {
  position: absolute;
  z-index: 2;
  top: var(--space-2);
  left: var(--space-2);
  padding: var(--space-2) var(--space-4);
  transform: translateY(-150%);
  border-radius: var(--radius-small);
  background: var(--color-surface);
  color: var(--color-ink);
  box-shadow: var(--shadow-soft);
}

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

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

.header-inner,
.footer-inner {
  display: flex;
  width: min(100% - 2rem, 74rem);
  margin-inline: auto;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.header-inner {
  min-height: 4.5rem;
  padding-block: var(--space-2);
}

.brand {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ink);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 1.8rem;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 700;
}

.site-nav,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
}

.site-nav a,
.footer-nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-muted);
  font-size: 0.9375rem;
  font-weight: 500;
}

.site-nav a[aria-current="page"],
.footer-nav a[aria-current="page"] {
  color: var(--color-ink);
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.35em;
}

.home-main {
  width: min(100% - 2rem, 74rem);
  min-height: 70vh;
  margin-inline: auto;
  padding-block: clamp(4rem, 10vw, 8rem) var(--space-16);
}

.home-hero {
  max-width: 52rem;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

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

h1 {
  max-width: 18ch;
  margin-bottom: var(--space-4);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

h2 {
  margin-bottom: var(--space-4);
  font-size: clamp(1.25rem, 2.5vw, 1.625rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

p,
li {
  max-width: 68ch;
}

.lead {
  max-width: 62ch;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: clamp(1.0625rem, 2vw, 1.1875rem);
  line-height: 1.75;
}

.action-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: background-color 150ms ease, color 150ms ease, transform 150ms ease;
}

.button:active {
  transform: translateY(1px);
}

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

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

.button-secondary {
  background: transparent;
  color: var(--color-accent);
}

.button-secondary:hover {
  background: var(--color-accent-soft);
}

.home-note {
  max-width: 44rem;
  margin-top: var(--space-12);
  padding-inline: var(--space-4);
}

.home-note p:last-child {
  margin-bottom: 0;
  color: var(--color-muted);
}

.page-main {
  padding: clamp(3rem, 7vw, 5rem) 1rem var(--space-16);
}

.page-shell {
  width: min(100%, 48rem);
  margin-inline: auto;
}

.page-heading {
  margin-bottom: var(--space-12);
}

.page-heading h1 {
  max-width: 24ch;
  font-size: clamp(2rem, 5vw, 3rem);
}

.content-section {
  margin-top: var(--space-12);
}

.content-section h2 {
  margin-bottom: var(--space-4);
}

.content-section p {
  margin-bottom: var(--space-4);
  color: var(--color-muted);
  line-height: 1.8;
}

.content-section p:last-child {
  margin-bottom: 0;
}

.plain-list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding-left: 1.25rem;
  color: var(--color-muted);
}

.faq-section details {
  border-top: 1px solid var(--color-border);
}

.faq-section details:last-child {
  border-bottom: 1px solid var(--color-border);
}

.faq-section summary {
  min-height: 3.5rem;
  padding-block: var(--space-4);
  color: var(--color-ink);
  cursor: pointer;
  font-weight: 600;
}

.answer {
  padding: 0 var(--space-4) var(--space-4);
}

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

.contact-panel {
  margin-top: var(--space-12);
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface);
}

.contact-panel h2 {
  margin-bottom: var(--space-2);
}

.contact-panel p:not(.eyebrow) {
  margin-bottom: var(--space-4);
  color: var(--color-muted);
}

.email-link {
  display: inline-flex;
  min-height: 2.75rem;
  max-width: 100%;
  align-items: center;
  font-weight: 600;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.policy .content-section:first-of-type {
  margin-top: 0;
}

.policy-contact {
  margin-top: var(--space-12);
}

.document-date {
  margin-top: var(--space-8);
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-page);
}

.footer-inner {
  min-height: 5rem;
  padding-block: var(--space-3);
}

.footer-brand {
  color: var(--color-ink);
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 38rem) {
  .header-inner,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--space-2);
    padding-block: var(--space-3);
  }

  .site-nav,
  .footer-nav {
    gap: var(--space-1) var(--space-4);
  }

  .home-main {
    padding-top: var(--space-8);
  }

  .home-hero {
    padding: var(--space-6) var(--space-4);
  }

  .action-links {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .home-note {
    margin-top: var(--space-8);
    padding-inline: var(--space-2);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}