:root {
  --color-base: #F6F2E9;
  --color-base-alt: #EFE9DC;
  --color-text-primary: #2A2724;
  --color-text-secondary: #6B6459;
  --color-border: #DED6C4;
  --color-accent: #B87A33;
  --color-accent-deep: #8A5A22;
  --color-accent-tint: #F1E3CC;
  --color-error: #9C4F3B;
  --color-text-primary-hover: #272421;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --space-9: 128px;

  --font-heading: 'Zen Old Mincho', 'Noto Serif JP', serif;
  --font-body: 'Zen Kaku Gothic New', 'Noto Sans JP', sans-serif;

  --container-max: 1200px;

  --header-offset: 80px;
}

* { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; scroll-behavior: smooth; scroll-padding-top: var(--header-offset); }

body {
  margin: 0;
  background: var(--color-base);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.85;
}

img, svg { max-width: 100%; display: block; }

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
}

.col-asymmetric {
  grid-column: 2 / 10;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 500;
  margin: 0;
}

h1 { font-size: 2.25rem; line-height: 1.5; letter-spacing: 0.01em; }
h2 { font-size: 1.75rem; line-height: 1.6; letter-spacing: 0.01em; }
h3 { font-size: 1.25rem; line-height: 1.6; }

p { margin: 0; }

.lead {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.75rem;
  line-height: 1.8;
  letter-spacing: 0.01em;
  color: var(--color-text-secondary);
}

.body-large { font-size: 1.125rem; line-height: 1.9; font-weight: 400; }
.body-small { font-size: 0.875rem; line-height: 1.7; color: var(--color-text-secondary); }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent-deep);
  outline-offset: 2px;
}

header.site-header {
  background: var(--color-base);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  flex-wrap: wrap;
}
.wordmark {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}
.global-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.global-nav a {
  font-size: 0.875rem;
  transition: color 180ms ease-out;
}
.global-nav a:hover { color: var(--color-accent-deep); }
.global-nav a[aria-current="page"] {
  color: var(--color-text-primary);
  font-weight: 500;
  border-bottom: 1px solid var(--color-accent);
}
.header-cta-wrap { flex-shrink: 0; }

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.4;
  letter-spacing: 0.02em;
  padding: 14px 28px;
  border-radius: 2px;
  cursor: pointer;
  border: none;
  transition: background-color 180ms ease-out, border-color 180ms ease-out, opacity 180ms ease-out;
}
.btn-primary {
  background: var(--color-text-primary);
  color: var(--color-base);
}
.btn-primary:hover { background: var(--color-text-primary-hover); }

.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn-primary[disabled]:hover { background: var(--color-text-primary); }

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-text-primary);
  padding: 13px 27px;
}
.btn-secondary:hover { background: var(--color-base-alt); }

.btn-small {
  padding: 9px 20px;
  font-size: 0.875rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.02em;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: border-color 180ms ease-out, color 180ms ease-out;
}
.text-link:hover {
  color: var(--color-accent-deep);
  border-color: var(--color-accent-deep);
}

section {
  padding: var(--space-8) 0;
}
.bg-base { background: var(--color-base); }
.bg-base-alt { background: var(--color-base-alt); }

.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-2);
}

footer.site-footer {
  background: var(--color-text-primary);
  color: var(--color-base);
  padding: var(--space-7) 0 var(--space-6);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.footer-sitemap {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-5);
}
.footer-sitemap a {
  font-size: 0.875rem;
  color: var(--color-base);
  opacity: 0.85;
  transition: opacity 180ms ease-out;
}
.footer-sitemap a:hover { opacity: 1; color: var(--color-base); text-decoration: underline; }
.footer-sitemap a:focus-visible { outline-color: var(--color-accent); }
.footer-meta {
  font-size: 0.75rem;
  color: var(--color-base);
  opacity: 0.6;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: 0.001ms !important; }
}

@media (min-width: 721px) and (max-width: 899px) {
  .header-inner { padding: var(--space-3) var(--space-3); gap: var(--space-3); }
  .global-nav { gap: var(--space-3) var(--space-4); }
  .global-nav a { font-size: 0.8125rem; }
}

@media (max-width: 720px) {
  .header-inner { flex-direction: column; align-items: flex-start; gap: var(--space-3); }
  .global-nav { gap: var(--space-3) var(--space-4); }

  .col-asymmetric { grid-column: 1 / 13; }

  h1 { font-size: 1.875rem; }
  .lead { font-size: 1.375rem; }

  section { padding: var(--space-6) 0; }

  .footer-inner { flex-direction: column; gap: var(--space-4); }

  :root { --header-offset: 224px; }
}

@media (max-width: 720px) and (max-height: 500px) {
  .header-inner { padding: var(--space-2) var(--space-3); gap: var(--space-2); }
  .global-nav { gap: var(--space-2) var(--space-3); }
  .global-nav a { font-size: 0.75rem; }
  .btn-small { padding: 6px 14px; font-size: 0.8125rem; }
  .wordmark { font-size: 1.125rem; }

  :root { --header-offset: 136px; }
}