*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { min-height: 100vh; }
img, svg { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font: inherit; }

:root {
  --c-bg:        #FAF7F2;
  --c-fg:        #2A1F14;
  --c-muted:     #8A7060;
  --c-accent:    #C9763A;
  --c-surface:   #F0E9DE;
  --c-surface-alt: #2A1F14;
  --c-surface-alt-fg: #FAF7F2;
  --c-border:    #DDD3C5;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 7rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --font-display: 'Noto Serif JP', 'Yu Mincho', serif;
  --font-body:    'Noto Sans JP', 'Hiragino Sans', sans-serif;
  --z-base:    0;
  --z-raised:  10;
  --z-overlay: 100;
  --z-modal:   1000;
}

body {
  background-color: var(--c-bg);
  color: var(--c-fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.55;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-fg);
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
p { font-size: clamp(0.9rem, 1.4vw, 1rem); color: var(--c-muted); line-height: 1.75; }

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-overlay);
  background-color: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
  padding-block: var(--space-2);
}
.site-header .container { display: flex; align-items: center; gap: var(--space-2); }
.header-logo { display: flex; align-items: center; gap: var(--space-2); }
.header-logo img { width: 38px; height: 38px; }
.header-logo .brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  color: var(--c-fg);
  letter-spacing: 0.02em;
}

.aux-hero {
  background-color: var(--c-surface-alt);
  padding-block: var(--space-5);
}
.aux-hero-inner { max-width: 700px; }
.aux-hero-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--space-2);
}
.aux-hero h1 { color: var(--c-bg); margin-bottom: var(--space-2); }
.aux-hero .aux-updated { font-size: 0.8rem; color: var(--c-muted); margin-top: var(--space-1); }

.aux-content {
  padding-block: var(--space-5);
}
.aux-content-inner {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-5);
  align-items: start;
}
.aux-sidebar {
  position: sticky;
  top: 90px;
}
.aux-sidebar nav { display: flex; flex-direction: column; gap: var(--space-1); }
.aux-sidebar nav a {
  font-size: 0.875rem;
  color: var(--c-muted);
  padding: var(--space-1) var(--space-2);
  border-left: 2px solid var(--c-border);
}
.aux-sidebar nav a:hover,
.aux-sidebar nav a.active {
  color: var(--c-accent);
  border-color: var(--c-accent);
}
.aux-sidebar-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: var(--space-2);
}

.aux-body { display: flex; flex-direction: column; gap: var(--space-4); }

.aux-section { display: flex; flex-direction: column; gap: var(--space-2); }
.aux-section h2 {
  padding-bottom: var(--space-1);
  border-bottom: 2px solid var(--c-accent);
  display: inline-block;
}
.aux-section h3 { margin-top: var(--space-1); color: var(--c-fg); }
.aux-section p { margin-top: 2px; }
.aux-section ul, .aux-section ol {
  padding-left: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-1);
}
.aux-section ul li { list-style: disc; font-size: 0.9rem; color: var(--c-muted); }
.aux-section ol li { list-style: decimal; font-size: 0.9rem; color: var(--c-muted); }
.aux-section a { color: var(--c-accent); text-decoration: underline; }

.about-blocks {
  padding-block: var(--space-5);
}
.about-blocks-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
  margin-top: var(--space-4);
}
.about-blocks-grid.reverse { direction: rtl; }
.about-blocks-grid.reverse > * { direction: ltr; }
.about-img-placeholder {
  background-color: var(--c-surface);
  border-radius: var(--radius-lg);
  width: 100%;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-border);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.about-text { display: flex; flex-direction: column; gap: var(--space-2); }
.about-text .section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
}
.about-values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.value-card {
  background-color: var(--c-surface);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  border: 1px solid var(--c-border);
}
.value-card-icon {
  width: 40px; height: 40px;
  background-color: var(--c-accent);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-1);
}
.value-card-icon svg { width: 20px; height: 20px; }
.value-card h4 { font-family: var(--font-display); font-size: 1rem; font-weight: 700; }
.value-card p { font-size: 0.85rem; }

.about-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.timeline-item {
  background-color: var(--c-surface);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.timeline-year {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-accent);
}
.timeline-content h4 { font-size: 0.95rem; margin-bottom: var(--space-1); }
.timeline-content p { font-size: 0.85rem; }

.about-team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-4);
}
.team-member {
  background-color: var(--c-surface);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  text-align: center;
}
.team-photo {
  width: 100%;
  aspect-ratio: 1;
  background-color: var(--c-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.team-info { display: flex; flex-direction: column; gap: var(--space-1); }
.team-info h4 { font-size: 1rem; }
.team-role {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-accent);
}
.team-bio { font-size: 0.85rem; color: var(--c-muted); text-align: left; }

.about-vision {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
  margin-top: var(--space-4);
}
.about-vision-text { display: flex; flex-direction: column; gap: var(--space-2); }
.about-vision-text .section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
}
.about-vision-icon {
  width: 100%;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-vision-icon svg { width: 150px; height: 150px; opacity: 0.3; }

.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--space-2);
}

.site-footer {
  background-color: var(--c-fg);
  color: var(--c-border);
  padding-block: var(--space-4);
}
.footer-simple {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.footer-logo-wrap { display: flex; align-items: center; gap: var(--space-2); }
.footer-logo-wrap img { width: 32px; height: 32px; filter: brightness(2); }
.footer-logo-wrap span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-bg);
}
.footer-copy { font-size: 0.8rem; color: var(--c-muted); }
.footer-links { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.footer-links a { font-size: 0.8rem; color: var(--c-muted); }
.footer-links a:hover { color: var(--c-accent); }

@media (min-width: 641px) and (max-width: 1024px) {
  .aux-content-inner { grid-template-columns: 1fr; }
  .aux-sidebar { position: static; }
  .about-blocks-grid { grid-template-columns: 1fr; }
  .about-values-grid { grid-template-columns: 1fr 1fr; }
  .about-timeline { grid-template-columns: 1fr 1fr; }
  .about-team-grid { grid-template-columns: 1fr 1fr; }
  .about-vision { grid-template-columns: 1fr; }
  .container { padding-inline: var(--space-3); }
}

@media (max-width: 640px) {
  :root { --space-5: 2.5rem; }
  .aux-content-inner { grid-template-columns: 1fr; }
  .aux-sidebar { position: static; }
  .about-blocks-grid { grid-template-columns: 1fr; }
  .about-blocks-grid.reverse { direction: ltr; }
  .about-values-grid { grid-template-columns: 1fr; }
  .about-timeline { grid-template-columns: 1fr; }
  .about-team-grid { grid-template-columns: 1fr; }
  .about-vision { grid-template-columns: 1fr; }
  .about-vision-icon { min-height: 200px; }
  .footer-simple { flex-direction: column; align-items: flex-start; }
  .container { padding-inline: var(--space-2); }
}

.aux-hero { color: #ffffff !important; }
.about-img-placeholder { color: #111111 !important; }