:root {
  --bg: #f4f3ee;
  --surface: #ffffff;
  --surface-soft: #ecefe8;
  --surface-strong: #e0e7dc;
  --line: #d3dacd;
  --line-strong: #a9b4a3;
  --text: #1d2420;
  --muted: #667068;
  --faint: #8a938b;
  --green: #0f766e;
  --green-dark: #0b5f58;
  --blue: #2f5f9f;
  --red: #bd4a3a;
  --amber: #b77a05;
  --ink: #26355a;
  --shadow: 0 12px 32px rgba(29, 36, 32, 0.08);
  --radius: 8px;
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
.file-action {
  min-height: 36px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--surface);
  color: var(--text);
  padding: 0 12px;
  cursor: pointer;
}

button:hover,
.file-action:hover {
  border-color: var(--green);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.file-action:focus-within {
  outline: 3px solid rgba(15, 118, 110, 0.22);
  outline-offset: 2px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  color: var(--text);
  padding: 9px 10px;
}

textarea {
  resize: vertical;
  line-height: 1.45;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 760;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 1.04rem;
  letter-spacing: 0;
}

h2 {
  font-size: 0.96rem;
  letter-spacing: 0;
}

h3 {
  font-size: 0.8rem;
  letter-spacing: 0;
}

a {
  color: var(--green-dark);
  font-weight: 740;
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 243, 238, 0.94);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 11px;
}

.brand-mark {
  display: grid;
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 8px;
  background: var(--text);
  color: var(--surface);
  font-weight: 840;
}

.brand p,
.section-heading p,
.source-focus p,
.queue-content,
.detail-content,
.idea-meta,
.source-meta {
  color: var(--muted);
}

.top-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.file-action {
  display: inline-grid;
  position: relative;
  place-items: center;
}

.file-action input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 330px) minmax(520px, 1fr) minmax(320px, 390px);
  min-height: calc(100vh - 68px);
}

.left-pane,
.center-pane,
.right-pane {
  min-width: 0;
}

.left-pane,
.right-pane {
  background: var(--surface-soft);
}

.left-pane {
  border-right: 1px solid var(--line);
  padding: 14px;
  overflow: auto;
}

.center-pane {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 14px;
}

.right-pane {
  display: grid;
  align-content: start;
  gap: 14px;
  border-left: 1px solid var(--line);
  padding: 14px;
  overflow: auto;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.segmented button {
  min-height: 34px;
  border: 0;
  background: transparent;
}

.segmented button.is-active {
  background: var(--green);
  color: var(--surface);
}

.tool-panel,
.triage-panel,
.graph-panel,
.idea-list-section,
.detail-panel,
.queue-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.tool-panel {
  display: grid;
  gap: 14px;
  margin-top: 12px;
  padding: 14px;
}

.is-hidden {
  display: none;
}

.stacked-form {
  display: grid;
  gap: 12px;
}

.field-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
}

.source-block {
  display: grid;
  gap: 10px;
  padding-top: 4px;
}

.subhead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.primary-action {
  border-color: var(--green-dark);
  background: var(--green);
  color: var(--surface);
  font-weight: 760;
}

.filter-bar {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) 140px 135px 120px auto;
  align-items: end;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.section-heading > div {
  min-width: 0;
}

.section-heading p {
  margin-top: 3px;
  font-size: 0.83rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.source-focus {
  display: grid;
  gap: 12px;
  padding: 12px 14px 14px;
}

.source-focus > p {
  display: -webkit-box;
  max-height: 75px;
  overflow: hidden;
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.source-list,
.draft-list,
.relation-list,
.similar-list,
.queue-content,
.idea-list {
  display: grid;
  gap: 9px;
}

.source-item,
.draft-item,
.relation-item,
.similar-item,
.queue-item,
.idea-card,
.evidence-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.source-item button,
.idea-card button {
  display: grid;
  width: 100%;
  min-height: 88px;
  align-content: start;
  gap: 8px;
  border: 0;
  background: transparent;
  padding: 11px;
  text-align: left;
}

.source-item.is-selected,
.idea-card.is-selected {
  border-color: var(--green);
  box-shadow: inset 0 0 0 2px rgba(15, 118, 110, 0.16);
}

.source-title,
.idea-title,
.detail-title,
.queue-title {
  color: var(--text);
  font-weight: 820;
  line-height: 1.28;
  overflow-wrap: anywhere;
}

.source-meta,
.idea-meta,
.draft-meta {
  font-size: 0.8rem;
  line-height: 1.35;
}

.triage-panel {
  min-height: 170px;
}

.draft-item,
.relation-item,
.similar-item,
.queue-item,
.evidence-item {
  display: grid;
  gap: 8px;
  padding: 10px;
}

.draft-item p,
.relation-item p,
.similar-item p,
.queue-item p,
.evidence-item p {
  color: var(--muted);
  line-height: 1.42;
  overflow-wrap: anywhere;
}

.item-actions,
.detail-actions,
.panel-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.panel-footer {
  padding: 0 14px 14px;
}

.graph-panel {
  min-height: 350px;
  overflow: hidden;
}

.graph-key {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
}

.graph-key span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.key-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.key-dot.explore {
  background: var(--red);
}

.key-dot.learning {
  background: var(--amber);
}

.key-dot.understood {
  background: var(--green);
}

#ideaGraph {
  display: block;
  width: 100%;
  min-height: 292px;
  background:
    linear-gradient(rgba(211, 218, 205, 0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(211, 218, 205, 0.55) 1px, transparent 1px);
  background-size: 44px 44px;
}

.graph-link {
  stroke: rgba(38, 53, 90, 0.28);
  stroke-width: 2;
}

.graph-link.similar {
  stroke: rgba(15, 118, 110, 0.24);
  stroke-dasharray: 7 6;
}

.graph-node {
  cursor: pointer;
  stroke: var(--surface);
  stroke-width: 4;
}

.graph-node.is-selected {
  stroke: var(--text);
  stroke-width: 5;
}

.graph-label {
  fill: var(--text);
  font-size: 12px;
  font-weight: 760;
  pointer-events: none;
}

.idea-list-section {
  min-height: 260px;
}

.idea-list {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  padding: 12px;
}

.idea-card button {
  min-height: 126px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.tag,
.pill,
.status-pill,
.source-type {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 23px;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.71rem;
  font-weight: 800;
}

.tag {
  background: var(--surface-strong);
  color: var(--ink);
}

.pill,
.source-type {
  background: rgba(38, 53, 90, 0.1);
  color: var(--ink);
}

.status-pill {
  background: rgba(189, 74, 58, 0.13);
  color: #8f372b;
}

.status-pill[data-status="learning"] {
  background: rgba(183, 122, 5, 0.15);
  color: #805604;
}

.status-pill[data-status="understood"] {
  background: rgba(15, 118, 110, 0.12);
  color: var(--green-dark);
}

.status-pill[data-status="archived"] {
  background: rgba(102, 112, 104, 0.14);
  color: var(--muted);
}

.detail-panel,
.queue-panel {
  overflow: hidden;
}

.detail-content,
.similar-list,
.queue-content {
  padding: 14px;
}

.detail-content {
  display: grid;
  gap: 14px;
  font-size: 0.92rem;
}

.detail-title {
  font-size: 1.07rem;
}

.detail-copy {
  color: var(--muted);
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.metric {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
  padding: 9px;
}

.metric span {
  display: block;
  color: var(--faint);
  font-size: 0.68rem;
  font-weight: 820;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  margin-top: 4px;
  color: var(--text);
  font-size: 0.98rem;
}

.evidence-list {
  display: grid;
  gap: 9px;
}

.edit-form {
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.compact-field {
  width: 88px;
}

.empty-state {
  color: var(--muted);
  line-height: 1.45;
}

@media (max-width: 1200px) {
  .workspace {
    grid-template-columns: minmax(280px, 330px) minmax(480px, 1fr);
  }

  .right-pane {
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 880px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-actions {
    width: 100%;
    justify-content: stretch;
  }

  .top-actions > * {
    flex: 1;
  }

  .workspace,
  .right-pane {
    display: grid;
    grid-template-columns: 1fr;
  }

  .left-pane,
  .right-pane {
    border-right: 0;
    border-left: 0;
  }

  .filter-bar {
    grid-template-columns: 1fr;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .detail-actions,
  .graph-key {
    justify-content: flex-start;
  }

  .field-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }
}