/* AI支援型監視・障害対応 研修資料 styles */
:root {
  --bg: #0b1220;
  --panel: #121a2b;
  --panel-2: #182338;
  --text: #e8eef9;
  --muted: #9aa8c7;
  --line: #2a3a55;
  --cyan: #22d3ee;
  --teal: #2dd4bf;
  --orange: #fb923c;
  --danger: #f87171;
  --ok: #4ade80;
  --monitor: #38bdf8;
  --ai: #2dd4bf;
  --human: #fb923c;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  --max: 980px;
  --font: "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  --mono: Consolas, "Cascadia Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: linear-gradient(180deg, #0b1220 0%, #101a2e 40%, #0d1524 100%);
  color: var(--text);
  line-height: 1.75;
  font-size: 16.5px;
}

a { color: var(--cyan); }
a:hover { color: #a5f3fc; }

.wrap { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.nav {
  position: sticky; top: 0; align-self: start;
  height: 100vh; overflow: auto;
  background: rgba(10, 16, 28, 0.95);
  border-right: 1px solid var(--line);
  padding: 1.2rem 1rem 2rem;
}
.nav h1 {
  font-size: 0.95rem; margin: 0 0 0.4rem;
  color: var(--cyan); letter-spacing: 0.02em;
}
.nav .sub { color: var(--muted); font-size: 0.78rem; margin-bottom: 1rem; }
.nav a {
  display: block; text-decoration: none; color: var(--muted);
  padding: 0.28rem 0.5rem; border-radius: 8px; font-size: 0.82rem;
}
.nav a:hover, .nav a:focus { background: var(--panel-2); color: var(--text); }
.nav .group { margin-top: 0.8rem; font-size: 0.72rem; color: var(--teal); text-transform: none; }

.main { padding: 1.5rem 1.5rem 4rem; }
.content { max-width: var(--max); margin: 0 auto; }

.hero {
  background: radial-gradient(circle at top right, rgba(34, 211, 238, 0.18), transparent 45%),
              linear-gradient(135deg, #152238, #0f1a2d);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.6rem 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}
.hero h2 { margin: 0 0 0.6rem; font-size: 1.7rem; line-height: 1.35; }
.hero p { margin: 0.4rem 0; color: #d5deed; }
.audience {
  display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.9rem;
}
.chip {
  border: 1px solid var(--line); background: rgba(255,255,255,0.04);
  border-radius: 999px; padding: 0.2rem 0.7rem; font-size: 0.78rem; color: var(--muted);
}

.principles {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.8rem; margin: 1rem 0 0;
}
.principle {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 0.9rem;
}
.principle strong { display: block; margin-bottom: 0.3rem; }
.principle.monitor strong { color: var(--monitor); }
.principle.ai strong { color: var(--ai); }
.principle.human strong { color: var(--human); }

section.chapter {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.3rem 1.2rem 1.5rem;
  margin: 1.2rem 0;
  box-shadow: var(--shadow);
}
section.chapter h2 {
  margin-top: 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
  font-size: 1.35rem;
}
h3 { color: #dbeafe; margin-top: 1.4rem; }
h4 { color: #bfdbfe; margin-top: 1.1rem; }

.callout, .warn, .tip, .role {
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin: 1rem 0;
  border: 1px solid var(--line);
}
.callout { background: rgba(34, 211, 238, 0.08); border-color: rgba(34, 211, 238, 0.35); }
.warn { background: rgba(248, 113, 113, 0.1); border-color: rgba(248, 113, 113, 0.4); }
.tip { background: rgba(45, 212, 191, 0.08); border-color: rgba(45, 212, 191, 0.35); }
.role.monitor { border-left: 4px solid var(--monitor); }
.role.ai { border-left: 4px solid var(--ai); }
.role.human { border-left: 4px solid var(--human); }

.badge {
  display: inline-block; font-size: 0.72rem; padding: 0.1rem 0.45rem;
  border-radius: 6px; margin-right: 0.3rem; vertical-align: middle;
}
.badge.monitor { background: rgba(56,189,248,0.2); color: #7dd3fc; }
.badge.ai { background: rgba(45,212,191,0.2); color: #5eead4; }
.badge.human { background: rgba(251,146,60,0.2); color: #fdba74; }

.table-wrap { overflow-x: auto; margin: 0.8rem 0 1rem; }
table {
  width: 100%; border-collapse: collapse; min-width: 560px;
  font-size: 0.92rem;
}
th, td {
  border: 1px solid var(--line); padding: 0.55rem 0.6rem; text-align: left; vertical-align: top;
}
th { background: var(--panel-2); color: #c7d7f5; }
tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

pre, code { font-family: var(--mono); }
pre {
  background: #0a1020; border: 1px solid var(--line); border-radius: 10px;
  padding: 0.9rem 1rem; overflow-x: auto; font-size: 0.82rem; line-height: 1.55;
}
code {
  background: rgba(255,255,255,0.06); padding: 0.05rem 0.35rem; border-radius: 5px; font-size: 0.88em;
}
pre code { background: transparent; padding: 0; }

.mermaid-box {
  background: #0a1020; border: 1px dashed #3b526f; border-radius: 12px;
  padding: 0.8rem; margin: 1rem 0;
}
.mermaid-box .caption { color: var(--muted); font-size: 0.8rem; margin-bottom: 0.5rem; }
.mermaid { background: transparent; }

.figure {
  border: 1px solid var(--line); border-radius: 12px; padding: 0.9rem;
  background: var(--panel-2); margin: 1rem 0;
}
.figure .title { font-weight: 700; color: var(--teal); margin-bottom: 0.5rem; }
.ascii {
  white-space: pre; overflow-x: auto; font-family: var(--mono);
  font-size: 0.78rem; line-height: 1.35; color: #cde7ff; margin: 0;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }
.card {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; padding: 0.8rem 0.9rem;
}
.card h4 { margin-top: 0; }

.cite { color: var(--muted); font-size: 0.85em; }
.footnote-list li { margin-bottom: 0.45rem; }

.exercise {
  border: 1px solid rgba(251, 146, 60, 0.45);
  background: rgba(251, 146, 60, 0.08);
  border-radius: 12px; padding: 0.9rem 1rem; margin: 1rem 0;
}
.answer {
  border: 1px solid rgba(74, 222, 128, 0.35);
  background: rgba(74, 222, 128, 0.07);
  border-radius: 12px; padding: 0.9rem 1rem; margin: 0.6rem 0 1rem;
}
details summary { cursor: pointer; color: var(--cyan); font-weight: 600; }

.legend {
  display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0.6rem 0 1rem; font-size: 0.85rem;
}
.legend span::before {
  content: ""; display: inline-block; width: 0.7rem; height: 0.7rem;
  border-radius: 2px; margin-right: 0.35rem; vertical-align: -0.05rem;
}
.legend .m::before { background: var(--monitor); }
.legend .a::before { background: var(--ai); }
.legend .h::before { background: var(--human); }

.toc-mobile { display: none; }

footer.site {
  max-width: var(--max); margin: 2rem auto 0; color: var(--muted); font-size: 0.85rem;
  border-top: 1px solid var(--line); padding-top: 1rem;
}

/* --- 章分割用 --- */
.nav a.active {
  background: rgba(34, 211, 238, 0.15);
  color: #e0f7ff;
  border: 1px solid rgba(34, 211, 238, 0.35);
}
.goals {
  background: rgba(45, 212, 191, 0.07);
  border: 1px solid rgba(45, 212, 191, 0.3);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  margin: 0 0 1.2rem;
}
.goals h3 { margin: 0 0 0.4rem; color: var(--teal); font-size: 1rem; }
.goals ul { margin: 0.3rem 0 0; padding-left: 1.2rem; }
.analogy {
  background: linear-gradient(90deg, rgba(251,146,60,0.12), rgba(34,211,238,0.06));
  border: 1px solid rgba(251,146,60,0.35);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  margin: 1rem 0;
}
.analogy .label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 0.35rem;
}
.gloss {
  border-bottom: 1px dotted var(--cyan);
  cursor: help;
}
.gloss-box {
  background: var(--panel-2);
  border-left: 3px solid var(--cyan);
  padding: 0.55rem 0.8rem;
  margin: 0.6rem 0 1rem;
  font-size: 0.9rem;
  color: #c5d4ef;
}
.readers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
  margin: 1rem 0;
}
.role-matrix {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0 0;
}
.role-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.8rem 0.9rem;
  background: var(--panel-2);
}
.role-card h3 {
  margin: 0 0 0.45rem;
  color: #93c5fd;
  font-size: 1rem;
}
.role-card p {
  margin: 0.35rem 0;
  font-size: 0.9rem;
}
.reader {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  background: rgba(255,255,255,0.02);
  font-size: 0.9rem;
}
.reader strong { display: block; color: #93c5fd; margin-bottom: 0.25rem; font-size: 0.82rem; }
.pager {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin: 1.5rem 0 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.pager a {
  display: inline-block;
  padding: 0.55rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  text-decoration: none;
  background: var(--panel-2);
  color: var(--text);
  max-width: 48%;
}
.pager a:hover { border-color: var(--cyan); }
.pager .next { margin-left: auto; text-align: right; }
.checklist {
  list-style: none;
  padding-left: 0;
}
.checklist li {
  padding: 0.35rem 0 0.35rem 1.6rem;
  position: relative;
}
.checklist li::before {
  content: "□";
  position: absolute;
  left: 0;
  color: var(--teal);
}
.step-list {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}
.step-list li {
  counter-increment: step;
  margin: 0.7rem 0;
  padding: 0.7rem 0.8rem 0.7rem 2.6rem;
  background: var(--panel-2);
  border-radius: 10px;
  border: 1px solid var(--line);
  position: relative;
}
.step-list li::before {
  content: counter(step);
  position: absolute;
  left: 0.7rem;
  top: 0.7rem;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  background: rgba(34,211,238,0.2);
  color: var(--cyan);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.4rem;
  text-align: center;
}
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.7rem;
  margin: 1rem 0;
}
.hub-card {
  display: block;
  text-decoration: none;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem 1rem;
  box-shadow: var(--shadow);
}
.hub-card:hover { border-color: var(--cyan); }
.hub-card .num { color: var(--cyan); font-size: 0.78rem; font-weight: 700; }
.hub-card h3 { margin: 0.25rem 0 0.35rem; font-size: 1.05rem; color: #e8eef9; }
.hub-card p { margin: 0; font-size: 0.85rem; color: var(--muted); }

/* 出典 [Sxx] リンク＋ホバーヒント */
.cite-ref {
  position: relative;
  display: inline-block;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dotted rgba(34, 211, 238, 0.7);
  font-weight: 600;
  font-size: 0.92em;
  cursor: help;
  white-space: nowrap;
  padding: 0 0.05em;
}
.cite-ref:hover,
.cite-ref:focus {
  color: #a5f3fc;
  border-bottom-color: #a5f3fc;
  outline: none;
}
.cite-ref::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%) translateY(4px);
  width: max-content;
  max-width: min(320px, 70vw);
  padding: 0.45rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #0a1220;
  color: #e8eef9;
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.4;
  white-space: normal;
  text-align: left;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s ease, transform 0.12s ease;
  z-index: 40;
}
.cite-ref:hover::after,
.cite-ref:focus::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.footnote-list li:target {
  background: rgba(34, 211, 238, 0.12);
  outline: 1px solid rgba(34, 211, 238, 0.4);
  border-radius: 8px;
  padding: 0.35rem 0.5rem;
}

@media print {
  .cite-ref::after { display: none !important; }
}

@media (max-width: 960px) {
  .readers { grid-template-columns: 1fr; }
  .pager a { max-width: 100%; }
}

@media (max-width: 960px) {
  .wrap { grid-template-columns: 1fr; }
  .nav { position: relative; height: auto; border-right: none; border-bottom: 1px solid var(--line); }
  .principles, .grid-2 { grid-template-columns: 1fr; }
}

@media print {
  body { background: #fff; color: #111; font-size: 11pt; }
  .nav { display: none; }
  .wrap { display: block; }
  .main { padding: 0; }
  section.chapter, .hero, .card, .callout, .warn, .tip, .role, .exercise, .answer {
    background: #fff !important; color: #111; border-color: #999; box-shadow: none;
  }
  a { color: #000; text-decoration: underline; }
  .badge, .chip { border: 1px solid #666; color: #000; background: #fff; }
  pre, .ascii, .mermaid-box { background: #f7f7f7 !important; color: #000; }
  h2, h3, h4 { color: #000; page-break-after: avoid; }
  table { break-inside: avoid; }
}