:root {
  --bg: #f4ead8;
  --paper: rgba(255, 249, 239, 0.78);
  --paper-strong: rgba(255, 248, 236, 0.9);
  --ink: #143330;
  --ink-soft: #33524d;
  --muted: #6d665c;
  --line: rgba(20, 51, 48, 0.14);
  --gold: #c7902d;
  --teal: #15756a;
  --rust: #b55b3a;
  --sage: #5f7d46;
  --ember: #a44535;
  --slate: #516875;
  --shadow: 0 18px 55px rgba(33, 32, 28, 0.14);
  --ui-font: "Trebuchet MS", "Gill Sans MT", sans-serif;
  --display-font: "Palatino Linotype", "Book Antiqua", Palatino, serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at 8% 8%, rgba(199, 144, 45, 0.18), transparent 22%),
    radial-gradient(circle at 92% 12%, rgba(21, 117, 106, 0.16), transparent 22%),
    linear-gradient(180deg, #f7efe0 0%, #f2e6d2 100%);
  color: var(--ink);
  font-family: var(--ui-font);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(20, 51, 48, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 51, 48, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at center, black, transparent 88%);
}

.shell {
  width: min(1480px, calc(100vw - 24px));
  margin: 12px auto;
  padding: 18px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.75fr);
  gap: 18px;
  padding: 24px;
  border: 1px solid rgba(20, 51, 48, 0.12);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(13, 54, 50, 0.96), rgba(27, 73, 66, 0.9)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}


.eyebrow {
  margin: 0 0 8px;
  color: rgba(255, 245, 225, 0.78);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.hero h1 {
  margin: 0;
  color: #fff4dc;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 0.98;
  font-family: var(--display-font);
  font-weight: 700;
}

.hero-byline {
  margin: 10px 0 0;
  color: rgba(255, 244, 220, 0.84);
  font-size: 0.95rem;
  line-height: 1.4;
}

.hero-summary {
  margin: 14px 0 0;
  max-width: 60ch;
  color: rgba(255, 249, 236, 0.86);
  font-size: 1rem;
  line-height: 1.6;
}

.hero-actions {
  display: grid;
  align-content: space-between;
  gap: 18px;
}

.hero-link-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.ghost-link {
  width: fit-content;
  padding: 11px 16px;
  border: 1px solid rgba(255, 244, 217, 0.24);
  border-radius: 999px;
  color: #fff4dc;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
}

.ghost-link:hover {
  background: rgba(255, 255, 255, 0.12);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 12px;
}

.stat-card {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 248, 236, 0.1);
  border: 1px solid rgba(255, 244, 217, 0.18);
  backdrop-filter: blur(10px);
}

.stat-value {
  display: block;
  color: #fff4dc;
  font-family: var(--display-font);
  font-size: 1.7rem;
  line-height: 1;
}

.stat-label {
  display: block;
  margin-top: 6px;
  color: rgba(255, 245, 225, 0.74);
  font-size: 0.86rem;
}

.workspace {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.72fr);
  gap: 18px;
  align-items: start;
}

.map-card,
.inspector {
  border: 1px solid rgba(20, 51, 48, 0.12);
  border-radius: 28px;
  background: var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.map-card {
  overflow: hidden;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  padding: 18px 20px 16px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 249, 239, 0.92), rgba(253, 244, 230, 0.74)),
    linear-gradient(90deg, rgba(199, 144, 45, 0.06), rgba(21, 117, 106, 0.05));
}

.search-field {
  display: grid;
  gap: 8px;
  font-size: 0.92rem;
}

.search-field span {
  color: var(--ink-soft);
  font-weight: 600;
}

.search-field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(20, 51, 48, 0.16);
  background: rgba(255, 255, 255, 0.72);
  font: inherit;
  color: var(--ink);
}

.search-field input:focus {
  outline: 2px solid rgba(21, 117, 106, 0.25);
  border-color: rgba(21, 117, 106, 0.42);
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.toolbar button,
.inspector .action-button,
.inspector .chip-button {
  appearance: none;
  border: 1px solid rgba(20, 51, 48, 0.16);
  background: rgba(255, 252, 246, 0.88);
  color: var(--ink);
  border-radius: 999px;
  padding: 11px 15px;
  font: inherit;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.toolbar button:hover,
.inspector .action-button:hover,
.inspector .chip-button:hover {
  transform: translateY(-1px);
  background: #fffdf8;
  border-color: rgba(20, 51, 48, 0.28);
}

.toolbar button[aria-pressed="true"] {
  background: rgba(21, 117, 106, 0.12);
  border-color: rgba(21, 117, 106, 0.34);
}

.toolbar-note {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.canvas-wrap {
  position: relative;
  min-height: 74vh;
}

#mindmap {
  display: block;
  width: 100%;
  height: 74vh;
  cursor: grab;
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.35), transparent 58%),
    linear-gradient(180deg, rgba(255, 249, 239, 0.4), rgba(250, 239, 223, 0.68));
}

#mindmap.dragging {
  cursor: grabbing;
}

.legend {
  position: absolute;
  left: 18px;
  bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid rgba(20, 51, 48, 0.12);
  border-radius: 18px;
  background: rgba(255, 250, 241, 0.84);
  backdrop-filter: blur(12px);
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.legend-dot,
.legend-line {
  display: inline-block;
  flex: 0 0 auto;
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
}

.legend-dot.cluster {
  background: var(--gold);
}

.legend-dot.chapter {
  background: var(--teal);
}

.legend-dot.topic {
  background: var(--rust);
}

.legend-line {
  width: 18px;
  height: 0;
  border-top: 2px dashed rgba(20, 51, 48, 0.44);
}

.inspector {
  padding: 22px;
  position: sticky;
  top: 12px;
}

.inspector-header {
  display: grid;
  gap: 10px;
}

.kicker {
  margin: 0;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
}

.inspector h2 {
  margin: 0;
  font-family: var(--display-font);
  font-size: 2rem;
  line-height: 1.04;
}

.meta-row,
.tag-row,
.action-row,
.chip-row,
.breadcrumb-row,
.related-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.meta-pill,
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 11px;
  border-radius: 999px;
  background: rgba(255, 252, 246, 0.86);
  border: 1px solid rgba(20, 51, 48, 0.1);
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.summary-block,
.quote-block,
.prompt-block,
.children-block,
.related-block {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.section-title {
  margin: 0 0 12px;
  color: var(--ink-soft);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.summary-block p,
.prompt-list,
.quote-block blockquote {
  margin: 0;
}

.summary-block p,
.quote-block blockquote,
.prompt-list li,
.related-copy {
  color: var(--ink);
  line-height: 1.62;
}

.quote-block blockquote {
  padding: 0 0 0 16px;
  border-left: 3px solid rgba(199, 144, 45, 0.4);
  color: var(--ink-soft);
  font-style: italic;
}

.prompt-list {
  padding-left: 20px;
}

.prompt-list li + li {
  margin-top: 8px;
}

.children-block .chip-button,
.related-block .chip-button,
.breadcrumb-row .chip-button {
  background: rgba(255, 250, 241, 0.76);
}

.children-block .chip-button.active,
.related-block .chip-button.active,
.breadcrumb-row .chip-button.active {
  border-color: rgba(21, 117, 106, 0.3);
  background: rgba(21, 117, 106, 0.08);
}

.inspector a {
  color: var(--teal);
}

.noscript-note {
  padding: 12px 18px;
}

.edge {
  fill: none;
  stroke: rgba(20, 51, 48, 0.19);
  stroke-width: 1.6;
}

.edge.is-active {
  stroke: rgba(199, 144, 45, 0.34);
  stroke-width: 2.1;
}

.theme-link {
  fill: none;
  stroke: rgba(20, 51, 48, 0.28);
  stroke-width: 1.5;
  stroke-dasharray: 7 7;
  opacity: 0.65;
}

.theme-link.is-active {
  stroke: rgba(181, 91, 58, 0.66);
  opacity: 1;
}

.node {
  cursor: pointer;
}

.node-core,
.node-halo,
.node-cap {
  transition: transform 180ms ease, stroke 180ms ease, opacity 180ms ease, fill 180ms ease;
}

.node-halo {
  fill: transparent;
  stroke: rgba(255, 255, 255, 0);
}

.node-core {
  fill: var(--node-color);
  stroke: rgba(255, 255, 255, 0.86);
  stroke-width: 2;
  filter: drop-shadow(0 8px 12px rgba(20, 51, 48, 0.15));
}

.node-label {
  fill: var(--ink);
  font-size: 13px;
  paint-order: stroke;
  stroke: rgba(250, 243, 230, 0.92);
  stroke-width: 4px;
  stroke-linejoin: round;
}

.node-label.depth-0 {
  font-family: var(--display-font);
  font-size: 18px;
  font-weight: 700;
}

.node-label.depth-1 {
  font-family: var(--display-font);
  font-size: 15px;
  font-weight: 700;
}

.node-label.depth-2 {
  font-size: 13px;
  font-weight: 700;
}

.node.is-selected .node-core {
  transform: scale(1.08);
}

.node.is-selected .node-halo {
  stroke: rgba(199, 144, 45, 0.36);
  stroke-width: 16;
  animation: pulse-ring 2.4s ease-in-out infinite;
}

.node.is-hit .node-core {
  stroke: rgba(199, 144, 45, 0.96);
  stroke-width: 2.5;
}

.node.is-path .node-core {
  stroke: rgba(21, 117, 106, 0.44);
}

.node:hover .node-core {
  transform: scale(1.04);
}

.branch-marker {
  fill: rgba(255, 251, 244, 0.96);
  stroke: rgba(20, 51, 48, 0.18);
  stroke-width: 1;
}

.branch-marker-text {
  font-size: 10px;
  font-weight: 700;
  fill: var(--ink-soft);
  text-anchor: middle;
  dominant-baseline: middle;
}

@keyframes pulse-ring {
  0%,
  100% {
    stroke-opacity: 0.18;
  }

  50% {
    stroke-opacity: 0.44;
  }
}

@media (max-width: 1160px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .inspector {
    position: static;
  }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .toolbar {
    grid-template-columns: 1fr;
  }

  .toolbar-actions {
    justify-content: flex-start;
  }

  .canvas-wrap,
  #mindmap {
    min-height: 58vh;
    height: 58vh;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100vw, calc(100vw - 8px));
    margin: 4px auto;
    padding: 10px;
  }

  .hero,
  .map-card,
  .inspector {
    border-radius: 22px;
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
  }

  .legend {
    right: 14px;
    left: 14px;
    bottom: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}

.tracker-section {
  margin-top: 18px;
}

.tracker-card {
  border: 1px solid rgba(20, 51, 48, 0.12);
  border-radius: 28px;
  background: var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  padding: 24px;
}

.tracker-header {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 18px;
}

.tracker-eyebrow {
  color: var(--ink-soft);
}

.tracker-title {
  margin: 0;
  font-family: var(--display-font);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.02;
}

.tracker-summary {
  margin: 14px 0 0;
  max-width: 62ch;
  color: var(--ink);
  line-height: 1.68;
}

.tracker-guide-wrap {
  display: grid;
  gap: 14px;
  align-content: start;
}

.tracker-guide-card,
.tracker-list-panel,
.tracker-detail-panel {
  border: 1px solid rgba(20, 51, 48, 0.12);
  border-radius: 22px;
  background: rgba(255, 251, 244, 0.7);
  padding: 18px;
}

.tracker-guide-grid {
  display: grid;
  gap: 12px;
}

.tracker-guide-item {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.tracker-guide-item strong {
  display: block;
  color: var(--ink);
}

.tracker-guide-item p,
.tracker-list-note,
.tracker-storage-note,
.tracker-small {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.tracker-swatch,
.tracker-verdict-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
}

.tracker-swatch {
  width: 12px;
  height: 12px;
  margin-top: 6px;
}

.verdict-met {
  background: rgba(73, 139, 76, 0.92);
}

.verdict-disproved {
  background: rgba(173, 74, 56, 0.92);
}

.verdict-open {
  background: rgba(199, 144, 45, 0.92);
}

.verdict-undecided {
  background: rgba(81, 104, 117, 0.88);
}

.tracker-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(110px, 1fr));
  gap: 10px;
}

.tracker-stat-card {
  padding: 14px 15px;
  border-radius: 18px;
  background: rgba(255, 252, 246, 0.86);
  border: 1px solid rgba(20, 51, 48, 0.1);
}

.tracker-stat-value {
  display: block;
  font-family: var(--display-font);
  font-size: 1.5rem;
  color: var(--ink);
}

.tracker-stat-label {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.84rem;
}

.tracker-controls {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) repeat(2, minmax(170px, 220px));
  gap: 14px;
}

.tracker-select-field {
  display: grid;
  gap: 8px;
}

.tracker-select-field span {
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.92rem;
}

.tracker-select-field select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(20, 51, 48, 0.16);
  background: rgba(255, 255, 255, 0.72);
  font: inherit;
  color: var(--ink);
}

.tracker-status-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.tracker-filter-button,
.tracker-verdict-button,
.tracker-item-button,
.tracker-detail-panel .tracker-action-button {
  appearance: none;
  border: 1px solid rgba(20, 51, 48, 0.14);
  background: rgba(255, 252, 246, 0.9);
  color: var(--ink);
  border-radius: 16px;
  font: inherit;
}

.tracker-filter-button,
.tracker-verdict-button,
.tracker-detail-panel .tracker-action-button {
  padding: 10px 14px;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.tracker-filter-button:hover,
.tracker-verdict-button:hover,
.tracker-item-button:hover,
.tracker-detail-panel .tracker-action-button:hover {
  transform: translateY(-1px);
  border-color: rgba(20, 51, 48, 0.28);
  background: #fffdf8;
}

.tracker-filter-button.is-active {
  background: rgba(21, 117, 106, 0.1);
  border-color: rgba(21, 117, 106, 0.32);
}

.tracker-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(330px, 0.88fr) minmax(0, 1.12fr);
  gap: 18px;
  align-items: start;
}

.tracker-list {
  display: grid;
  gap: 10px;
  max-height: 880px;
  overflow: auto;
  padding-right: 6px;
}

.tracker-item-button {
  width: 100%;
  padding: 16px;
  text-align: left;
  cursor: pointer;
}

.tracker-item-button.is-active {
  border-color: rgba(21, 117, 106, 0.34);
  background: rgba(21, 117, 106, 0.08);
}

.tracker-item-top,
.tracker-item-meta,
.tracker-meta-row,
.tracker-verdict-row,
.tracker-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tracker-item-top {
  align-items: center;
  justify-content: space-between;
}

.tracker-kind-pill,
.tracker-meta-pill,
.tracker-verdict-pill {
  padding: 6px 10px;
  font-size: 0.78rem;
  border: 1px solid rgba(20, 51, 48, 0.1);
}

.tracker-kind-pill,
.tracker-meta-pill {
  background: rgba(255, 252, 246, 0.88);
  color: var(--ink-soft);
}

.tracker-verdict-pill {
  color: #fffdf8;
  font-weight: 700;
}

.tracker-item-title,
.tracker-detail-title {
  margin: 12px 0 8px;
  font-family: var(--display-font);
  color: var(--ink);
}

.tracker-item-title {
  font-size: 1.1rem;
}

.tracker-item-copy,
.tracker-detail-copy,
.tracker-detail-panel li,
.tracker-empty-state p {
  margin: 0;
  color: var(--ink);
  line-height: 1.62;
}

.tracker-item-meta {
  margin-top: 12px;
}

.tracker-empty-state {
  padding: 22px;
  border-radius: 18px;
  background: rgba(255, 252, 246, 0.84);
  border: 1px dashed rgba(20, 51, 48, 0.18);
}

.tracker-detail-header {
  display: grid;
  gap: 10px;
}

.tracker-detail-panel .section-title {
  margin-bottom: 10px;
}

.tracker-detail-block + .tracker-detail-block {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.tracker-verdict-row {
  margin-top: 12px;
}

.tracker-verdict-button.is-active {
  border-color: rgba(21, 117, 106, 0.32);
  background: rgba(21, 117, 106, 0.1);
}

.tracker-notes-label {
  display: grid;
  gap: 10px;
  color: var(--ink-soft);
  font-weight: 600;
}

.tracker-notes-label textarea {
  min-height: 140px;
  width: 100%;
  resize: vertical;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(20, 51, 48, 0.14);
  background: rgba(255, 255, 255, 0.78);
  font: inherit;
  color: var(--ink);
}

.tracker-notes-label textarea:focus,
.tracker-select-field select:focus {
  outline: 2px solid rgba(21, 117, 106, 0.25);
  border-color: rgba(21, 117, 106, 0.42);
}

@media (max-width: 1160px) {
  .tracker-grid,
  .tracker-header {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .tracker-controls {
    grid-template-columns: 1fr;
  }

  .tracker-stats {
    grid-template-columns: repeat(2, minmax(110px, 1fr));
  }
}

@media (max-width: 640px) {
  .tracker-card {
    padding: 18px;
    border-radius: 22px;
  }

  .tracker-stats {
    grid-template-columns: 1fr 1fr;
  }
}

.tracker-detail-panel .tracker-action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}