:root {
  --bg-0: #0d1117;
  --bg-1: #141b25;
  --bg-2: #1b2431;
  --bg-3: #223044;
  --line: #2b3a50;
  --text-0: #f3f6fb;
  --text-1: #c6d2e2;
  --text-2: #8fa1b8;
  --text-muted: #64748b;
  --accent: #4ad7c4;
  --accent-2: #6ea8fe;
  --warn: #ffb15c;
  --danger: #ff7a7a;
  --kyosai: #4ad7c4;
  --shokibo: #6ee7a8;
  --tosan: #6ea8fe;
  --radius: 16px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 600px at 80% -10%, #17243a 0%, var(--bg-0) 55%);
  color: var(--text-1);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ===== Topbar ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(13, 17, 23, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: 0;
  color: var(--text-0);
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
  letter-spacing: 0.02em;
}
.brand-mark { font-size: 22px; }
.brand-2 {
  color: var(--accent);
  margin-left: 2px;
  font-size: 20px;
}
.topbar-actions { display: flex; gap: 8px; }
.iconbtn {
  background: var(--bg-2);
  color: var(--text-1);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
  transition: 0.15s;
}
.iconbtn:hover { background: var(--bg-3); color: var(--text-0); }

/* ===== Layout ===== */
.app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 26px 32px 60px;
}
.sitefoot {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 32px 46px;
  color: var(--text-muted);
  font-size: 12px;
  border-top: 1px solid var(--line);
}
.sitefoot code { color: var(--text-2); }

/* ===== Hero ===== */
.hero { text-align: center; margin-bottom: 26px; }
.hero .eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(74, 215, 196, 0.1);
  border: 1px solid rgba(74, 215, 196, 0.25);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 16px;
}
.hero h1 {
  font-size: 26px;
  color: var(--text-0);
  margin: 0 0 10px;
  line-height: 1.4;
}
.hero p {
  color: var(--text-2);
  font-size: 15px;
  margin: 0 auto;
  max-width: 640px;
}
.back-link {
  display: inline-block;
  background: none;
  border: 0;
  color: var(--text-2);
  cursor: pointer;
  font-size: 13px;
  margin-bottom: 14px;
  padding: 4px 0;
}
.back-link:hover { color: var(--accent); }

/* ===== Program cards ===== */
.program-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 620px) { .program-grid { grid-template-columns: 1fr; } }
.program-card {
  --tint: var(--accent);
  position: relative;
  text-align: left;
  background: linear-gradient(160deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px;
  cursor: pointer;
  transition: 0.18s;
  overflow: hidden;
}
.program-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--tint);
  opacity: 0.9;
}
.program-card:hover {
  transform: translateY(-3px);
  border-color: var(--tint);
  box-shadow: var(--shadow);
}
.program-emblem { font-size: 40px; display: block; margin-bottom: 12px; }
.program-card h2 { font-size: 20px; color: var(--text-0); margin: 0 0 6px; }
.program-card .tagline { color: var(--tint); font-size: 13px; font-weight: 700; margin-bottom: 12px; }
.program-card .blurb { color: var(--text-2); font-size: 13.5px; margin: 0 0 16px; }
.program-card .cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-0);
}
.program-card .char-count {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
}

/* ===== Character cards ===== */
.char-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 980px) { .char-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .char-grid { grid-template-columns: 1fr; } }
.char-card {
  text-align: left;
  display: flex;
  flex-direction: column;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: 0.15s;
}
.char-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.char-card.is-self { border-color: rgba(110, 168, 254, 0.5); background: linear-gradient(160deg, rgba(110,168,254,0.08), var(--bg-1)); }
.char-open {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  text-align: left;
  background: none;
  border: 0;
  color: inherit;
  padding: 16px 16px 12px;
  cursor: pointer;
  width: 100%;
}
.char-open:hover { background: var(--bg-2); }
.char-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px dashed var(--line);
  gap: 8px;
}
.route-badge {
  font-size: 11.5px;
  font-weight: 800;
  color: var(--accent);
  background: rgba(74, 215, 196, 0.1);
  border: 1px solid rgba(74, 215, 196, 0.3);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}
.char-card.is-self .route-badge { color: var(--accent-2); background: rgba(110,168,254,0.12); border-color: rgba(110,168,254,0.35); }
.char-map-btn {
  background: none;
  border: 0;
  color: var(--text-2);
  font-size: 12px;
  cursor: pointer;
  padding: 4px 2px;
}
.char-map-btn:hover { color: var(--text-0); }
.char-avatar {
  font-size: 34px;
  line-height: 1;
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: var(--bg-3);
  border-radius: 12px;
}
.char-main { min-width: 0; }
.char-name { font-size: 16px; font-weight: 800; color: var(--text-0); }
.char-role { font-size: 12px; color: var(--accent); margin: 2px 0 6px; }
.char-summary { font-size: 12.5px; color: var(--text-2); }
.char-tags { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 5px; }
.char-tag {
  font-size: 10.5px;
  color: var(--text-2);
  background: var(--bg-3);
  border-radius: 6px;
  padding: 2px 7px;
}

/* ===== Scene layout (main + side map) ===== */
.scene-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 28px;
  align-items: start;
}
.scene-side {
  position: sticky;
  top: 74px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.side-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  cursor: pointer;
  padding: 11px 14px;
  font-size: 13px;
  font-weight: 800;
  color: var(--text-0);
  list-style: none;
  border-bottom: 1px solid var(--line);
}
.side-summary::-webkit-details-marker { display: none; }
.side-step { font-size: 11px; font-weight: 700; color: var(--accent); }
.side-map-scroll {
  max-height: calc(100vh - 190px);
  overflow: auto;
  padding: 10px;
  -webkit-overflow-scrolling: touch;
}
.side-hint { padding: 8px 14px 11px; font-size: 11px; color: var(--text-muted); border-top: 1px solid var(--line); }

@media (max-width: 880px) {
  .scene-layout { grid-template-columns: 1fr; }
  .scene-side { order: -1; position: static; }
  .side-map-scroll { max-height: 320px; }
}

/* ===== Scene ===== */
.scene { animation: fade 0.25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.scene-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.map-btn {
  margin-left: auto;
  flex-shrink: 0;
  background: var(--bg-2);
  color: var(--text-1);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 13px;
  font-size: 12.5px;
  cursor: pointer;
  transition: 0.15s;
}
.map-btn:hover { background: var(--bg-3); color: var(--text-0); border-color: var(--accent); }
.scene-avatar {
  font-size: 26px;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--bg-3);
  border-radius: 11px;
  flex-shrink: 0;
}
.scene-who { font-size: 13px; color: var(--text-2); }
.scene-who strong { color: var(--text-0); font-size: 15px; }

.progress {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 20px;
}
.progress .step {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
}
.progress .step.current { color: var(--text-0); border-color: var(--accent); }

.scene h2 { font-size: 21px; color: var(--text-0); margin: 4px 0 14px; line-height: 1.45; }
.scene-body { color: var(--text-1); font-size: 15px; }
.scene-body p { margin: 0 0 12px; }
.scene-body strong { color: var(--text-0); }
.scene-body a { color: var(--accent-2); }

/* Choices */
.choices { display: flex; flex-direction: column; gap: 12px; margin-top: 22px; }
.choice {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 15px 16px;
  cursor: pointer;
  transition: 0.15s;
  width: 100%;
  color: var(--text-1);
}
.choice:hover { border-color: var(--accent); background: var(--bg-2); }
.choice.highlight {
  border-color: var(--accent);
  background: linear-gradient(120deg, rgba(74, 215, 196, 0.12), var(--bg-1));
  box-shadow: 0 0 0 1px rgba(74, 215, 196, 0.25);
}
.choice.highlight.self {
  border-color: var(--accent-2);
  background: linear-gradient(120deg, rgba(110, 168, 254, 0.14), var(--bg-1));
  box-shadow: 0 0 0 1px rgba(110, 168, 254, 0.28);
}
.choice-num {
  flex-shrink: 0;
  width: 26px; height: 26px;
  display: grid; place-items: center;
  background: var(--bg-3);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-1);
}
.choice-body { flex: 1; min-width: 0; }
.choice-label { display: block; font-size: 14.5px; font-weight: 700; color: var(--text-0); }
.choice-sub { display: block; font-size: 12px; color: var(--text-2); margin-top: 3px; }
.choice-arrow { color: var(--text-muted); font-size: 16px; }
.choice-badge {
  position: absolute;
  top: -9px;
  left: 14px;
  font-size: 10.5px;
  font-weight: 800;
  color: var(--bg-0);
  background: var(--accent);
  border-radius: 999px;
  padding: 2px 10px;
}
.choice.self .choice-badge { background: var(--accent-2); }

/* Callouts */
.callout {
  border-radius: 12px;
  padding: 14px 16px;
  margin: 16px 0;
  font-size: 13.5px;
  border: 1px solid var(--line);
  background: var(--bg-1);
}
.callout .callout-title { font-weight: 800; color: var(--text-0); margin-bottom: 6px; font-size: 13.5px; }
.callout.info { border-color: rgba(110, 168, 254, 0.4); background: rgba(110, 168, 254, 0.07); }
.callout.tip { border-color: rgba(110, 231, 168, 0.4); background: rgba(110, 231, 168, 0.07); }
.callout.warn { border-color: rgba(255, 177, 92, 0.4); background: rgba(255, 177, 92, 0.08); }
.callout.danger { border-color: rgba(255, 122, 122, 0.4); background: rgba(255, 122, 122, 0.08); }
.callout p { margin: 0 0 6px; }
.callout p:last-child { margin: 0; }

.bullets { margin: 8px 0 12px; padding-left: 20px; }
.bullets li { margin-bottom: 5px; font-size: 13.5px; }

.kyosai-table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 13px; }
.kyosai-table th, .kyosai-table td { border: 1px solid var(--line); padding: 8px 10px; text-align: center; }
.kyosai-table th { background: var(--bg-3); color: var(--text-0); }
.kyosai-table .col-key { text-align: left; color: var(--text-1); background: var(--bg-1); }

/* End */
.scene.is-end { text-align: center; }
.end-emoji { font-size: 54px; display: block; margin: 10px 0 6px; }
.end-summary {
  text-align: left;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 18px 18px;
  margin: 16px 0 22px;
  font-size: 14px;
}
.end-summary strong { color: var(--text-0); }
.end-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.btn {
  background: var(--bg-2);
  color: var(--text-1);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 11px 20px;
  font-size: 14px;
  cursor: pointer;
  transition: 0.15s;
}
.btn:hover { background: var(--bg-3); }
.btn-primary { background: var(--accent); color: #06231f; border-color: var(--accent); font-weight: 800; }
.btn-primary:hover { filter: brightness(1.06); }

.legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 20px;
  font-size: 12px;
  color: var(--text-2);
}
.legend .swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -1px; margin-right: 5px; }

/* ===== Route map ===== */
.map-legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 12px;
  color: var(--text-2);
}
.map-legend .lg { display: inline-block; width: 14px; height: 10px; border-radius: 3px; vertical-align: -1px; margin-right: 5px; border: 1px solid var(--line); }
.map-legend .lg-start { background: rgba(74, 215, 196, 0.25); border-color: var(--accent); }
.map-legend .lg-mid { background: var(--bg-2); }
.map-legend .lg-end { background: rgba(110, 231, 168, 0.18); border-color: var(--shokibo); }
.map-legend .lg-main { background: var(--accent-2); border-color: var(--accent-2); }

.map-note {
  max-width: 640px;
  margin: 0 auto 14px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 13px;
}
.map-note > summary {
  cursor: pointer;
  padding: 11px 15px;
  font-weight: 700;
  color: var(--text-1);
  list-style: none;
}
.map-note > summary::-webkit-details-marker { display: none; }
.map-note > summary::before { content: "？ "; color: var(--accent); font-weight: 800; }
.map-note[open] > summary { border-bottom: 1px solid var(--line); color: var(--text-0); }
.map-note:hover > summary { color: var(--text-0); }
.map-note-body { padding: 12px 15px 4px; color: var(--text-1); }
.map-note-body p { margin: 0 0 10px; }
.map-note-body strong { color: var(--text-0); }
.map-note-caveat { color: var(--text-2); font-size: 12.5px; }

.map-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    linear-gradient(var(--bg-1), var(--bg-1)) padding-box,
    repeating-linear-gradient(0deg, transparent, transparent 51px, rgba(255,255,255,0.02) 52px);
  padding: 8px;
  -webkit-overflow-scrolling: touch;
}
.map-canvas { position: relative; margin: 0 auto; }
.map-svg { position: absolute; inset: 0; pointer-events: none; }
.edge { fill: none; stroke: var(--line); stroke-width: 2; }
.edge-hi { stroke: var(--text-2); }
.edge-main { stroke: var(--accent-2); stroke-width: 3; }
.arw { fill: var(--line); }
.arw-main { fill: var(--accent-2); }

.map-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 3px;
  text-align: left;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px 10px;
  cursor: pointer;
  transition: 0.13s;
  overflow: hidden;
}
.map-node:hover { border-color: var(--accent); background: var(--bg-3); transform: translateY(-1px); z-index: 3; }
.map-node .map-node-kind { font-size: 9.5px; font-weight: 800; letter-spacing: 0.04em; color: var(--text-muted); }
.map-node .map-node-label {
  font-size: 13px; font-weight: 700; color: var(--text-0);
  line-height: 1.25; width: 100%;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.map-node.start { border-color: var(--accent); background: linear-gradient(160deg, rgba(74,215,196,0.16), var(--bg-2)); }
.map-node.start .map-node-kind { color: var(--accent); }
.map-node.end { border-color: rgba(110, 231, 168, 0.5); background: linear-gradient(160deg, rgba(110,231,168,0.12), var(--bg-2)); }
.map-node.on-main { box-shadow: 0 0 0 2px var(--accent-2); border-color: var(--accent-2); }
.map-node.visited { border-color: var(--text-2); opacity: 0.92; }
.map-node.current {
  border-color: var(--warn);
  background: linear-gradient(160deg, rgba(255,177,92,0.22), var(--bg-3));
  box-shadow: 0 0 0 3px rgba(255,177,92,0.55);
  z-index: 4;
  animation: pulse 1.6s ease-in-out infinite;
}
.map-node.current .map-node-kind { color: var(--warn); }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(255,177,92,0.55); }
  50% { box-shadow: 0 0 0 6px rgba(255,177,92,0.18); }
}

/* mini scale (side panel) */
.map-canvas.mini .map-node { padding: 4px 8px; border-radius: 8px; }
.map-canvas.mini .map-node-kind { font-size: 8.5px; }
.map-canvas.mini .map-node-label { font-size: 11px; -webkit-line-clamp: 2; }

.map-actions { display: flex; justify-content: center; margin-top: 20px; }