:root {
  --ink: #15202b;
  --ink-soft: #2c3a48;
  --muted: #5f6d7a;
  --line: rgba(21, 32, 43, 0.12);
  --paper: #f3f6f8;
  --paper-deep: #e4ebf0;
  --surface: rgba(255, 255, 255, 0.82);
  --accent: #c43b3b;
  --accent-deep: #9e2f2f;
  --ok: #1f7a4c;
  --ok-bg: rgba(31, 122, 76, 0.12);
  --ng: #b42318;
  --ng-bg: rgba(180, 35, 24, 0.1);
  --hint: #8a5a12;
  --shadow: 0 18px 40px rgba(21, 32, 43, 0.1);
  --radius: 18px;
  --font-display: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-ui: "Zen Kaku Gothic New", "Hiragino Sans", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-ui);
  background: var(--paper);
  line-height: 1.7;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(196, 59, 59, 0.14), transparent 55%),
    radial-gradient(ellipse 70% 45% at 90% 0%, rgba(44, 58, 72, 0.12), transparent 50%),
    linear-gradient(165deg, #eef3f6 0%, #e2e9ef 45%, #d7e0e8 100%);
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(21, 32, 43, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 32, 43, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 85%);
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.25rem;
  align-items: end;
  padding: 2rem clamp(1.25rem, 4vw, 3rem) 1.25rem;
  animation: rise 0.7s ease both;
}

.brand-mark {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.brand h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.55rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.25;
}

.brand-sub {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.pack-nav {
  margin: 0.65rem 0 0;
  font-size: 0.88rem;
}

.pack-nav a {
  color: var(--accent-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(158, 47, 47, 0.35);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.pack-nav a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.header-stats {
  display: flex;
  gap: 0.75rem;
}

.stat {
  min-width: 6.5rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--line);
  background: var(--surface);
  backdrop-filter: blur(8px);
  border-radius: 14px;
}

.stat-label {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}

.layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 1.25rem;
  padding: 0 clamp(1.25rem, 4vw, 3rem) 3rem;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  animation: rise 0.8s ease 0.08s both;
}

.sidebar-tools {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.article-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-height: min(68vh, 640px);
  overflow: auto;
  padding-right: 0.25rem;
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.nav-item:hover {
  background: rgba(21, 32, 43, 0.04);
}

.nav-item.active {
  background: rgba(196, 59, 59, 0.08);
  border-color: rgba(196, 59, 59, 0.28);
  color: var(--ink);
  font-weight: 700;
}

.nav-item.done .nav-dot {
  background: var(--ok);
}

.nav-item.partial .nav-dot {
  background: #d4a017;
}

.nav-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: #c5ced6;
  flex-shrink: 0;
}

.main {
  animation: rise 0.85s ease 0.12s both;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.toolbar-left,
.toolbar-right {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.65rem 1.15rem;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-deep);
}

.btn-secondary {
  background: var(--ink);
  color: #fff;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.65);
  border-color: var(--line);
  color: var(--ink-soft);
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 1.35rem 1.5rem 1rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(228, 235, 240, 0.65), transparent);
}

.chapter {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}

.card-header h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  letter-spacing: 0.08em;
}

.card-body {
  padding: 1.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  line-height: 2.05;
}

.passage {
  margin: 0 0 1.25rem;
}

.passage:last-child {
  margin-bottom: 0;
}

.clause-label {
  display: inline-block;
  margin-right: 0.4rem;
  padding: 0.05rem 0.45rem;
  border-radius: 6px;
  background: var(--paper-deep);
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  vertical-align: middle;
}

.blank {
  display: inline-flex;
  align-items: center;
  margin: 0 0.15rem;
  vertical-align: baseline;
}

.blank input {
  width: var(--blank-width, 7.5rem);
  min-width: 4.5rem;
  max-width: 100%;
  padding: 0.15rem 0.45rem;
  border: none;
  border-bottom: 2px solid rgba(21, 32, 43, 0.28);
  border-radius: 0;
  background: rgba(196, 59, 59, 0.05);
  color: var(--ink);
  font: inherit;
  font-size: 1em;
  text-align: center;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.blank input:focus {
  outline: none;
  border-bottom-color: var(--accent);
  background: rgba(196, 59, 59, 0.08);
  box-shadow: 0 6px 16px rgba(196, 59, 59, 0.08);
}

.blank.correct input {
  border-bottom-color: var(--ok);
  background: var(--ok-bg);
  color: var(--ok);
}

.blank.incorrect input {
  border-bottom-color: var(--ng);
  background: var(--ng-bg);
  color: var(--ng);
}

.blank.hinted input {
  border-bottom-color: #d4a017;
  background: rgba(212, 160, 23, 0.12);
}

.blank.revealed input {
  border-bottom-color: var(--ink-soft);
  background: rgba(21, 32, 43, 0.05);
  color: var(--ink);
}

.card-footer {
  min-height: 3.2rem;
  padding: 0.85rem 1.5rem 1.2rem;
  border-top: 1px solid var(--line);
}

.feedback {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.feedback.ok {
  color: var(--ok);
  font-weight: 700;
}

.feedback.ng {
  color: var(--ng);
  font-weight: 700;
}

.howto {
  margin: 1rem 0.25rem 0;
  color: var(--muted);
  font-size: 0.88rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .article-nav {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(7.5rem, 1fr));
    max-height: none;
  }

  .nav-item {
    font-size: 0.82rem;
  }
}

@media (max-width: 520px) {
  .site-header {
    padding-top: 1.4rem;
  }

  .header-stats {
    width: 100%;
  }

  .stat {
    flex: 1;
  }

  .card-body {
    padding: 1.15rem;
  }

  .btn {
    padding: 0.6rem 0.95rem;
  }
}

/* —— 憲法条文 小テスト —— */
.test-page .test-header {
  align-items: stretch;
}

.pack-sep {
  margin: 0 0.35rem;
  color: var(--muted);
}

.score-box {
  min-width: 8.5rem;
  padding: 0.85rem 1.1rem 1rem;
  border: 2px solid rgba(196, 59, 59, 0.45);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  text-align: center;
  align-self: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.score-box.pulse {
  transform: scale(1.04);
  box-shadow: 0 10px 28px rgba(196, 59, 59, 0.22);
}

.score-label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  font-weight: 700;
}

.score-line {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.2rem;
  margin-top: 0.2rem;
  font-family: var(--font-display);
}

.score-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--muted);
  min-width: 1.6em;
}

.score-value.scored {
  color: var(--accent);
}

.score-slash,
.score-max {
  font-size: 1.25rem;
  color: var(--ink-soft);
}

.test-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
  align-items: center;
  padding: 0 clamp(1.25rem, 4vw, 3rem) 1rem;
  animation: rise 0.75s ease 0.05s both;
}

.meta-field {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.meta-input {
  border: none;
  border-bottom: 1.5px solid rgba(21, 32, 43, 0.28);
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
  font: inherit;
  font-family: var(--font-display);
  text-align: center;
  padding: 0.15rem 0.35rem;
}

.meta-input:focus {
  outline: none;
  border-bottom-color: var(--accent);
  background: rgba(196, 59, 59, 0.06);
}

.meta-class,
.meta-number {
  width: 2.8rem;
}

.meta-name {
  width: min(14rem, 42vw);
  text-align: left;
}

.meta-name-field {
  gap: 0.45rem;
}

.test-toolbar {
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  margin-bottom: 1rem;
  animation: rise 0.8s ease 0.08s both;
}

.test-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 300px);
  gap: 1.25rem;
  padding: 0 clamp(1.25rem, 4vw, 3rem) 3rem;
  align-items: start;
  animation: rise 0.85s ease 0.12s both;
}

.test-exam .card-body {
  padding: 1.35rem 1.5rem 0.5rem;
}

.exam-article {
  margin-bottom: 1.35rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px dashed var(--line);
}

.exam-article:last-child {
  border-bottom: none;
  margin-bottom: 0.5rem;
}

.exam-article-title {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--accent-deep);
}

.test-blank {
  position: relative;
  flex-wrap: wrap;
  gap: 0.15rem 0.25rem;
  margin: 0 0.1rem;
}

.test-blank .blank-mark {
  font-family: "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Sans", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-right: 0.1rem;
}

.test-blank.blank-echo {
  display: inline-flex;
  align-items: center;
  min-width: 2.2em;
  padding: 0 0.2rem;
  border-bottom: 2px dotted rgba(21, 32, 43, 0.22);
  vertical-align: baseline;
}

.test-blank .blank-correction {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ng);
  margin-left: 0.15rem;
}

.test-sheet {
  position: sticky;
  top: 1rem;
  overflow: hidden;
}

.sheet-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1rem 1.1rem 0.75rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(228, 235, 240, 0.65), transparent);
}

.sheet-header h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.08em;
}

.sheet-header p {
  margin: 0;
  color: var(--muted);
  font-family: "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Sans", sans-serif;
  font-size: 0.82rem;
}

.sheet-grid {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.85rem 1rem 1.1rem;
  max-height: min(72vh, 760px);
  overflow: auto;
}

.sheet-row {
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 1fr) 1.1rem;
  grid-template-rows: auto auto;
  column-gap: 0.35rem;
  row-gap: 0.1rem;
  align-items: center;
  padding: 0.3rem 0.35rem;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.sheet-row.correct {
  background: var(--ok-bg);
}

.sheet-row.incorrect {
  background: var(--ng-bg);
}

.sheet-row.revealed {
  background: rgba(21, 32, 43, 0.05);
}

.sheet-num {
  font-family: "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Sans", sans-serif;
  font-weight: 700;
  color: var(--accent);
  font-size: 0.9rem;
}

.sheet-row input {
  width: 100%;
  border: none;
  border-bottom: 1.5px solid rgba(21, 32, 43, 0.22);
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-family: var(--font-display);
  font-size: 0.92rem;
  padding: 0.15rem 0.2rem;
}

.sheet-row input:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.sheet-row.correct input {
  color: var(--ok);
  border-bottom-color: var(--ok);
}

.sheet-row.incorrect input {
  color: var(--ng);
  border-bottom-color: var(--ng);
}

.sheet-mark {
  text-align: center;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
}

.sheet-row.correct .sheet-mark,
.sheet-row.revealed .sheet-mark {
  color: var(--ok);
}

.sheet-row.incorrect .sheet-mark {
  color: var(--ng);
}

.sheet-correction {
  grid-column: 2 / -1;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ng);
  min-height: 0.9em;
}

@media (max-width: 960px) {
  .test-layout {
    grid-template-columns: 1fr;
  }

  .test-sheet {
    position: static;
  }

  .sheet-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr));
    max-height: none;
  }
}

@media (max-width: 520px) {
  .test-meta {
    gap: 0.65rem 0.85rem;
  }

  .meta-name {
    width: min(12rem, 55vw);
  }

  .score-box {
    width: 100%;
  }
}

.map-page {
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.map-page .site-header {
  flex-shrink: 0;
  padding-top: 1.05rem;
  padding-bottom: 0.65rem;
}

.map-page .brand h1 {
  font-size: clamp(1.45rem, 3vw, 2rem);
}

.map-page .howto {
  flex-shrink: 0;
  margin: 0.45rem 0 0;
}

.map-shell {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 0 clamp(1.25rem, 4vw, 3rem) 0.85rem;
}

.map-toolbar {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  flex-shrink: 0;
  margin-bottom: 0.7rem;
}

.map-toolbar-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.map-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  min-height: 2.4rem;
}

.crumb {
  appearance: none;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink-soft);
  font: inherit;
  font-size: 0.86rem;
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  cursor: pointer;
}

.crumb:hover {
  border-color: var(--line);
}

.crumb.is-current {
  background: var(--ink);
  color: #fff;
  font-weight: 700;
}

.crumb-sep {
  color: var(--muted);
  font-size: 0.9rem;
}

.map-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.map-tools .btn {
  padding: 0.45rem 0.85rem;
}

.map-search {
  position: relative;
  max-width: 36rem;
}

.map-search input {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
}

.map-search input:focus {
  outline: 2px solid rgba(196, 59, 59, 0.35);
  border-color: transparent;
}

.map-hits {
  position: absolute;
  z-index: 5;
  top: calc(100% + 0.35rem);
  left: 0;
  right: 0;
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow);
}

.map-hits button {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.map-hits button span {
  color: var(--muted);
  font-size: 0.82rem;
  white-space: nowrap;
}

.map-hits button:hover {
  background: rgba(196, 59, 59, 0.08);
}

.map-hit-empty {
  padding: 0.55rem 0.7rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.map-stage {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: 1rem;
  align-items: stretch;
}

.map-viewport {
  position: relative;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.28)),
    repeating-linear-gradient(0deg, transparent, transparent 27px, rgba(21, 32, 43, 0.035) 28px),
    repeating-linear-gradient(90deg, transparent, transparent 27px, rgba(21, 32, 43, 0.035) 28px);
  cursor: grab;
  touch-action: none;
  box-shadow: var(--shadow);
}

.map-viewport.is-dragging {
  cursor: grabbing;
}

.map-hint {
  position: absolute;
  z-index: 2;
  left: 0.9rem;
  bottom: 0.75rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.75rem;
  pointer-events: none;
}

.map-world {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 0 0;
}

.map-edges {
  position: absolute;
  inset: 0;
  overflow: visible;
  pointer-events: none;
}

.map-edge {
  fill: none;
  stroke: rgba(21, 32, 43, 0.28);
  stroke-width: 1.6;
  stroke-linecap: round;
}

.map-edge.is-active {
  stroke: var(--accent);
  stroke-width: 2.25;
}

.map-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.1rem;
  margin: 0;
  padding: 0.45rem 2.15rem 0.45rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(21, 32, 43, 0.06);
}

.map-node:hover {
  border-color: rgba(196, 59, 59, 0.45);
}

.map-node-label {
  font-weight: 700;
  font-size: 0.92rem;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.map-node-hint {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.map-node.kind-chapter .map-node-label,
.map-node.is-root .map-node-label {
  font-family: var(--font-display);
  letter-spacing: 0.04em;
}

.map-node.kind-chapter,
.map-node.kind-preamble,
.map-node.kind-principle {
  border-left: 4px solid var(--ink);
}

.map-node.kind-preamble,
.map-node.kind-principle {
  border-left-color: var(--accent);
}

.map-node.is-on-path {
  border-color: rgba(196, 59, 59, 0.45);
}

.map-node.is-selected {
  background: #fff8f7;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(196, 59, 59, 0.14);
}

.map-node.tone-base { border-left: 4px solid #5f6d7a; }
.map-node.tone-eq { border-left: 4px solid #243140; }
.map-node.tone-lib { border-left: 4px solid var(--accent); }
.map-node.tone-soc { border-left: 4px solid var(--ok); }
.map-node.tone-pol { border-left: 4px solid #2f5278; }
.map-node.tone-claim { border-left: 4px solid var(--hint); }
.map-node.tone-duty { border-left: 4px solid #6d5a45; }

.map-node.is-root {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  border-left-color: var(--ink);
}

.map-node.is-root .map-node-label {
  font-size: 1.05rem;
}

.map-node.is-root .map-node-hint {
  color: rgba(255, 255, 255, 0.72);
}

.map-node.is-root.is-selected {
  background: var(--ink);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(196, 59, 59, 0.35);
}

.map-node-count {
  position: absolute;
  right: 0.45rem;
  bottom: 0.4rem;
  min-width: 1.35rem;
  padding: 0.05rem 0.3rem;
  border-radius: 999px;
  background: var(--paper-deep);
  color: var(--ink-soft);
  font-size: 0.68rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.4;
}

.map-node.is-root .map-node-count {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.map-node-study {
  position: absolute;
  top: 0.35rem;
  right: 0.45rem;
  color: var(--accent);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.map-node.is-root .map-node-study {
  color: #fff;
}

.map-detail {
  height: 100%;
  min-height: 0;
  overflow: auto;
  padding: 1.2rem 1.2rem 1rem;
}

.map-detail h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: 0.06em;
  line-height: 1.35;
}

.map-scene {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.08rem;
  line-height: 1.65;
  color: var(--ink);
}

.map-body {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
}

.map-quote {
  margin: 0.9rem 0 0;
  padding: 0.75rem 0.85rem;
  border-left: 3px solid var(--accent);
  background: rgba(196, 59, 59, 0.06);
  color: var(--ink-soft);
  font-family: var(--font-display);
  font-size: 0.98rem;
  line-height: 1.8;
}

.map-see {
  margin-top: 0.9rem;
}

.map-child-label {
  margin: 1rem 0 0.4rem;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.map-child-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.map-child {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  width: 100%;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink);
  font: inherit;
  font-size: 0.88rem;
  text-align: left;
  cursor: pointer;
}

.map-child small {
  color: var(--muted);
  font-size: 0.75rem;
  white-space: nowrap;
}

.map-child:hover {
  border-color: rgba(196, 59, 59, 0.4);
}

.map-detail-foot {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.map-detail-foot a {
  color: var(--accent-deep);
}

@media (max-width: 960px) {
  .map-page {
    height: auto;
    overflow: auto;
  }

  .map-stage {
    display: grid;
    grid-template-columns: 1fr;
    flex: none;
  }

  .map-viewport {
    height: 70vh;
    min-height: 420px;
  }

  .map-detail {
    height: auto;
    max-height: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .map-node,
  .map-world {
    transition: none;
  }
}