:root {
  --bg: #f7f7f5;
  --card: #ffffff;
  --ink: #0a0a0a;
  --ink-soft: #3f3f46;
  --ink-mute: #71717a;
  --line: #e4e4e7;
  --line-soft: #f4f4f5;
  --accent: #1d4ed8;
  --accent-soft: #eef2ff;
  --warm: #ea580c;
  --warm-soft: #fff7ed;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  letter-spacing: 0.03em;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt" 1;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 48px 32px 80px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* TOP BAR (各詳細ページ) */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.topbar .home { color: var(--ink-mute); }
.topbar .home:hover { color: var(--accent); }
.topbar .pager { display: flex; gap: 16px; color: var(--ink-mute); }
.topbar .pager a { color: var(--ink-soft); font-weight: 600; }

/* HERO */
.eyebrow {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 4px;
  margin: 0 0 20px;
  font-weight: 600;
}
h1 {
  font-size: 40px;
  line-height: 1.35;
  margin: 0 0 20px;
  font-weight: 800;
  letter-spacing: 0.01em;
}
.lede {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 760px;
  margin: 0 0 32px;
  line-height: 1.95;
}

/* HERO STATS */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 56px;
}
.hero-stats > div { background: var(--card); padding: 20px 24px; }
.hero-stats b {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  margin-bottom: 4px;
}
.hero-stats b .unit { font-size: 16px; color: var(--ink-mute); font-weight: 600; margin-left: 2px; }
.hero-stats span { font-size: 12px; color: var(--ink-mute); letter-spacing: 0.08em; }

/* TEAM INDEX (index.htmlの10チーム一覧) */
.team-index { display: grid; gap: 12px; }
.team-card {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 22px 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: border-color 0.15s, transform 0.15s;
  text-decoration: none;
  color: inherit;
}
.team-card:hover {
  border-color: var(--accent);
  transform: translateX(2px);
  text-decoration: none;
}
.team-card .num {
  font-size: 24px;
  font-weight: 800;
  color: var(--ink-mute);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}
.team-card:hover .num { color: var(--accent); }
.team-card .title {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 4px;
  letter-spacing: 0.02em;
}
.team-card .subtitle {
  font-size: 13px;
  color: var(--ink-mute);
  margin: 0;
}
.team-card .badge {
  background: var(--ink);
  color: #fff;
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 3px;
  letter-spacing: 0.14em;
  font-weight: 600;
}
.team-card .badge.nontech { background: var(--warm); }
.team-card .arrow {
  font-size: 18px;
  color: var(--ink-mute);
  margin-left: 8px;
}
.team-card:hover .arrow { color: var(--accent); }

/* PANEL HEAD (詳細ページの見出し) */
.panel-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  padding: 8px 0 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}
.panel-head h2 {
  font-size: 32px;
  margin: 0 0 6px;
  font-weight: 800;
  letter-spacing: 0.01em;
}
.panel-head .num-label {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.18em;
  margin: 0 0 8px;
  font-weight: 700;
}
.panel-head .subtitle {
  color: var(--ink-mute);
  font-size: 13px;
  letter-spacing: 0.08em;
  margin: 0;
}
.panel-head .badge {
  background: var(--ink);
  color: #fff;
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 4px;
  letter-spacing: 0.14em;
  font-weight: 600;
}
.panel-head .badge.nontech { background: var(--warm); }

/* HEADLINE QUOTE */
.headline {
  background: linear-gradient(180deg, var(--accent-soft) 0%, var(--card) 100%);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  padding: 24px 28px;
  margin: 0 0 32px;
  border-radius: 6px;
}
.headline .quote {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.6;
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}
.headline .quote-sub { color: var(--ink-soft); font-size: 14px; margin: 0; }

/* IMPACT NUMS */
.impact-nums {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-bottom: 32px;
  overflow: hidden;
}
.impact-nums > div { background: var(--card); padding: 18px 20px; }
.impact-nums b {
  display: block;
  font-size: 26px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
  margin-bottom: 4px;
}
.impact-nums b .unit { font-size: 14px; color: var(--ink-soft); font-weight: 600; margin-left: 2px; }
.impact-nums span { font-size: 12px; color: var(--ink-mute); letter-spacing: 0.06em; line-height: 1.5; }

/* SECTION TITLE */
.sec-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--ink-mute);
  margin: 32px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  text-transform: uppercase;
}

/* USE CASES */
.cases { list-style: none; padding: 0; margin: 0; }
.cases > li { padding: 18px 0; border-bottom: 1px solid var(--line); }
.cases > li:last-child { border-bottom: none; }
.cases .name {
  display: block;
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  margin-bottom: 4px;
  letter-spacing: 0.02em;
}
.cases .name::before {
  content: "▸";
  color: var(--accent);
  margin-right: 8px;
  font-size: 12px;
}
.cases .desc { color: var(--ink-soft); font-size: 14px; margin: 0; line-height: 1.85; }

/* TIPS */
.tips { list-style: none; padding: 0; margin: 0; }
.tips > li {
  background: var(--warm-soft);
  border-left: 3px solid var(--warm);
  padding: 14px 18px;
  margin-bottom: 8px;
  border-radius: 0 4px 4px 0;
  font-size: 14px;
}
.tips .name { display: block; font-weight: 700; color: var(--ink); margin-bottom: 4px; font-size: 14px; }
.tips .desc { color: var(--ink-soft); font-size: 13px; line-height: 1.8; }

/* ROLE CALLOUT */
.role-callout {
  background: var(--line-soft);
  padding: 16px 20px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 28px;
  line-height: 1.85;
}
.role-callout strong {
  color: var(--ink);
  display: block;
  font-size: 11px;
  letter-spacing: 0.2em;
  margin-bottom: 6px;
  font-weight: 700;
}

/* CROSS PATTERN (index.html) */
.cross {
  margin-top: 72px;
  padding: 40px;
  background: var(--ink);
  color: #fafafa;
  border-radius: 10px;
}
.cross h2 { font-size: 22px; margin: 0 0 8px; font-weight: 800; letter-spacing: 0.02em; }
.cross .cross-sub { color: #a1a1aa; font-size: 14px; margin: 0 0 28px; }
.cross-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.cross-item { border-top: 2px solid #404040; padding-top: 16px; }
.cross-item b { display: block; color: #93c5fd; font-size: 12px; letter-spacing: 0.14em; margin-bottom: 8px; font-weight: 700; }
.cross-item p { margin: 0; color: #d4d4d8; font-size: 13px; line-height: 1.8; }

/* SCORE CARD (index.html) */
.score {
  margin-top: 56px;
  padding: 32px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.score h2 { margin: 0 0 8px; font-size: 22px; font-weight: 800; }
.score .score-sub { color: var(--ink-mute); font-size: 13px; margin: 0 0 24px; }
.score ol { margin: 0; padding: 0 0 0 24px; counter-reset: s; list-style: none; }
.score li {
  counter-increment: s;
  padding: 10px 0 10px 32px;
  position: relative;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}
.score li::before {
  content: counter(s, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 11px;
  color: var(--ink-mute);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  font-weight: 700;
}
.score li:last-child { border-bottom: none; }

/* PAGE NAV (詳細ページ最下部) */
.page-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 64px;
}
.page-nav a {
  padding: 20px 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: border-color 0.15s;
  color: inherit;
  text-decoration: none;
}
.page-nav a:hover { border-color: var(--accent); text-decoration: none; }
.page-nav .dir {
  display: block;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-mute);
  margin-bottom: 6px;
  font-weight: 700;
}
.page-nav .label { font-weight: 700; font-size: 15px; }
.page-nav a:hover .dir { color: var(--accent); }
.page-nav .next { text-align: right; }

footer {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-mute);
}

@media (max-width: 760px) {
  h1 { font-size: 28px; }
  .panel-head { grid-template-columns: 1fr; }
  .panel-head h2 { font-size: 24px; }
  .headline .quote { font-size: 18px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .cross { padding: 28px 24px; }
  .wrap { padding: 32px 20px 60px; }
  .team-card { grid-template-columns: 40px 1fr auto; gap: 12px; padding: 16px 18px; }
  .team-card .num { font-size: 18px; }
  .page-nav { grid-template-columns: 1fr; }
  .page-nav .next { text-align: left; }
}