@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&display=swap');

:root {
  --c-bg:      #EFF3F9;
  --c-fg:      #17202E;
  --c-muted:   #68788F;
  --c-accent:  #0052CC;
  --c-surface: #E0EAF6;
  --c-white:   #FFFFFF;
  --c-accent-dark: #003D99;
  --c-fg-inv:  #FFFFFF;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 5rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --font-display: 'Noto Sans JP', sans-serif;
  --font-body:    'Noto Sans JP', sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--c-bg);
  color: var(--c-fg);
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 1.4vw, 1rem);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }

h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
h2 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.8vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
}
h3 {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 700;
  line-height: 1.35;
}
p { line-height: 1.8; }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--c-fg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.site-header .container {
  display: flex;
  align-items: center;
  padding-block: var(--space-2);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}
.brand-logo {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-fg-inv);
  letter-spacing: -0.01em;
}

.page-hero {
  background-color: var(--c-fg);
  color: var(--c-fg-inv);
  padding-block: var(--space-5);
  border-bottom: 3px solid var(--c-accent);
}
.breadcrumb {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.breadcrumb a { color: rgba(255,255,255,0.5); }
.breadcrumb a:hover { color: var(--c-fg-inv); }
.breadcrumb span { color: rgba(255,255,255,0.3); }
.page-hero h1 { color: var(--c-fg-inv); margin-bottom: var(--space-1); }
.page-hero p  { color: rgba(255,255,255,0.6); font-size: 0.95rem; }

.aux-main {
  flex: 1;
  padding-block: var(--space-5);
}

.about-block {
  padding-block: var(--space-5);
}
.about-block + .about-block {
  border-top: 1px solid var(--c-surface);
}
.about-block.dark {
  background-color: var(--c-fg);
  color: var(--c-fg-inv);
  padding-inline: 0;
  margin-inline: 0;
}
.about-block.dark h2 { color: var(--c-fg-inv); }
.about-block.dark p  { color: rgba(255,255,255,0.7); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
}
.about-inner.reverse { direction: rtl; }
.about-inner.reverse > * { direction: ltr; }
.about-text h2 { margin-bottom: var(--space-3); }
.about-text p + p { margin-top: var(--space-2); }
.about-text p  { color: var(--c-muted); }
.about-text.on-dark p { color: rgba(255,255,255,0.65); }
.about-img-placeholder {
  min-height: 300px;
  border-radius: var(--radius-lg);
  background-color: var(--c-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-muted);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.about-img-placeholder.dark-bg {
  background-color: rgba(255,255,255,0.07);
  color: rgba(255,255,255,0.3);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-5);
}
.team-card {
  text-align: center;
}
.team-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background-color: var(--c-surface);
  margin: 0 auto var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-accent);
}
.team-card h4 { font-size: 0.95rem; margin-bottom: 4px; color: var(--c-fg); }
.team-card p  { font-size: 0.8rem; color: var(--c-muted); }

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.value-card {
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background-color: var(--c-white);
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
.value-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.value-card h3 { margin-bottom: var(--space-1); }
.value-card p  { font-size: 0.85rem; color: var(--c-muted); }

.policy-empty {
  padding: var(--space-6) 0;
  text-align: center;
  color: var(--c-muted);
  font-size: 0.9rem;
}
.policy-empty p { margin-top: var(--space-2); }

.site-footer {
  background-color: var(--c-fg);
  color: var(--c-fg-inv);
  padding-block: var(--space-5);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: var(--space-4);
}
.footer-brand p {
  margin-top: var(--space-2);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  max-width: 300px;
}
.footer-col h4 {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: var(--space-2);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.footer-col ul li a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
}
.footer-col ul li a:hover { color: var(--c-fg-inv); }
.footer-col p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}
.footer-bottom p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.38);
}

@media (min-width: 641px) and (max-width: 1024px) {
  .about-inner { grid-template-columns: 1fr; }
  .team-grid   { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 640px) {
  .container { padding-inline: var(--space-3); }
  .about-inner   { grid-template-columns: 1fr; }
  .about-inner.reverse { direction: ltr; }
  .team-grid     { grid-template-columns: repeat(2, 1fr); }
  .values-grid   { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr; }
}

.about-img-placeholder { color: #111111 !important; }
.about-img-placeholder.dark-bg { color: #111111 !important; }