:root {
  color-scheme: light;
  --bg: #ffffff;
  --ink: #000000;
  --muted: #6b7280;
  --line: #e5e7eb;
  --line-strong: #000000;
  --blue: #2563eb;
  --blue-soft: #eff6ff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 20;
  background: var(--ink);
  color: var(--bg);
  padding: 10px 14px;
  text-decoration: none;
}

.skip-link:focus {
  top: 16px;
}

.site-header,
main,
.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 380px);
  gap: 28px;
  align-items: end;
  padding: 56px 0 28px;
  border-bottom: 1px solid var(--line);
}

.header-copy,
.source-card {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 5.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.025em;
}

.lede {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.55;
}

.source-card {
  display: grid;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.source-card span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.source-card a {
  color: var(--blue);
  font-weight: 500;
  overflow-wrap: anywhere;
}

.source-card small {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 20px 0;
}

.summary-tile {
  min-height: 92px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.summary-tile strong {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.summary-tile span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.85rem;
}

.controls {
  display: grid;
  gap: 12px;
  align-items: start;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 16px 0 18px;
}

.filter-group {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 10px 14px;
  align-items: start;
}

.filter-group:first-child {
  grid-row: 1;
}

.filter-heading {
  min-height: 26px;
  display: flex;
  align-items: center;
}

.filter-heading span {
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip-row-scroll {
  max-height: 78px;
  overflow: auto;
  padding-right: 4px;
}

.chip {
  min-height: 26px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink);
  padding: 3px 10px;
  font-size: 0.74rem;
  font-weight: 500;
}

.chip:hover {
  border-color: var(--ink);
}

.chip[aria-pressed="true"] {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.result-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.idea-list {
  display: grid;
  gap: 12px;
  padding-bottom: 32px;
}

.idea-card {
  display: grid;
  grid-template-columns: 64px minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 20px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.idea-number {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.idea-main {
  min-width: 0;
}

.idea-title-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.idea-title {
  margin: 0;
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.status-badge,
.confidence-badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--muted);
  padding: 4px 9px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.status-solved {
  background: var(--bg);
  color: var(--ink);
  border-color: var(--ink);
}

.status-promising {
  background: var(--blue-soft);
  color: var(--blue);
  border-color: var(--blue);
}

.status-partial,
.status-far,
.confidence-badge {
  background: var(--bg);
  color: var(--muted);
  border-color: var(--line);
}

.category-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
}

.category-pill {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  padding: 3px 9px;
  font-size: 0.72rem;
  font-weight: 500;
}

.evaluation-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 0;
}

.evaluation-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--muted);
  padding: 3px 9px;
  font-size: 0.66rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.scale-strong,
.progress-institutionalized,
.progress-deployed_program,
.impact-outcome_evidence,
.impact-strong_impact_evidence {
  background: var(--blue-soft);
  border-color: var(--blue);
  color: var(--blue);
}

.scale-partial,
.progress-active_work,
.impact-output_evidence {
  background: var(--bg);
  border-color: var(--ink);
  color: var(--ink);
}

.scale-limited,
.progress-adjacent_activity,
.progress-none_found,
.impact-activity_only,
.impact-none_found,
.audit-high,
.audit-normal {
  background: var(--bg);
  border-color: var(--line);
  color: var(--muted);
}

.assessment-block {
  display: grid;
  gap: 6px;
  margin: 16px 0 0;
  border-left: 3px solid var(--blue);
  background: var(--blue-soft);
  border-radius: 0 6px 6px 0;
  padding: 12px 14px;
}

.assessment-block span,
.assessment-block small {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.assessment-block p {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.55;
}

.assessment-block small {
  color: var(--muted);
  font-weight: 500;
}

.context-panel,
.more-panel {
  margin: 12px 0 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
}

.context-panel summary,
.more-panel summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  cursor: pointer;
  list-style: none;
  color: var(--blue);
  padding: 9px 11px;
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.context-panel summary::-webkit-details-marker,
.more-panel summary::-webkit-details-marker {
  display: none;
}

.context-panel summary::before,
.more-panel summary::before {
  content: "+";
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 0.75rem;
  line-height: 1;
}

.context-panel[open] > summary::before,
.more-panel[open] > summary::before {
  content: "-";
}

.context-panel[open] > summary {
  border-bottom: 1px solid var(--line);
}

.context-panel summary:focus,
.more-panel summary:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.detail-count {
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  padding: 2px 7px;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.basis-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 12px;
}

.basis-list div {
  display: grid;
  gap: 4px;
}

.basis-list dt {
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.basis-list dd {
  margin: 0;
  color: var(--ink);
  font-size: 0.9rem;
  line-height: 1.5;
}

.idea-summary {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.6;
}

.original-panel .idea-summary {
  padding: 12px;
}

.research-panel {
  display: grid;
  gap: 0;
  align-content: start;
  grid-auto-rows: max-content;
  border-left: 1px solid var(--line);
  padding-left: 20px;
}

.meta-block {
  display: grid;
  gap: 6px;
  border-bottom: 1px solid var(--line);
  padding: 0 0 14px;
  margin-bottom: 14px;
}

.meta-block:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.meta-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.meta-label {
  color: var(--ink);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.meta-count {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  padding: 2px 7px;
  font-size: 0.62rem;
  font-weight: 600;
  line-height: 1.2;
  text-transform: uppercase;
}

.empty-state {
  display: inline-flex;
  width: max-content;
  max-width: 100%;
  border: 1px dashed var(--line);
  border-radius: 999px;
  color: var(--muted);
  padding: 4px 10px;
  font-size: 0.72rem;
}

.solver-list,
.evidence-list,
.history-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hidden-list {
  padding: 0 11px 11px;
}

.more-panel {
  margin-top: 8px;
  background: var(--bg);
}

.more-panel summary {
  min-height: 30px;
  padding: 6px 8px;
  color: var(--muted);
  font-size: 0.66rem;
}

.more-panel[open] > summary {
  border-bottom: 0;
}

.solver-list a,
.evidence-list a,
.source-link {
  color: var(--blue);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.source-link {
  width: fit-content;
  font-size: 0.88rem;
}

.solver-list li,
.evidence-list li,
.history-list li {
  display: grid;
  gap: 2px;
}

.solver-list span,
.evidence-list span,
.evidence-note,
.history-list p {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.4;
}

.evidence-note,
.history-list p {
  margin: 2px 0 0;
}

.evidence-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.source-type-pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--muted);
  padding: 1px 7px;
  font-size: 0.62rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.source-type-official,
.source-type-academic,
.source-type-ea_forum,
.source-type-media,
.source-type-primary,
.source-type-organization_page {
  color: var(--muted);
}

.no-results {
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 32px;
  text-align: center;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 24px 0 40px;
  font-size: 0.88rem;
}

code {
  background: var(--blue-soft);
  border-radius: 4px;
  color: var(--blue);
  padding: 2px 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.86em;
}

@media (max-width: 980px) {
  .site-header,
  .idea-card {
    grid-template-columns: 1fr;
  }

  .summary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .controls {
    position: static;
  }

  .research-panel {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 16px 0 0;
  }
}

@media (max-width: 640px) {
  .site-header,
  main,
  .site-footer {
    width: min(calc(100% - 22px), 1180px);
  }

  .site-header {
    padding-top: 32px;
  }

  h1 {
    font-size: 2.25rem;
    line-height: 1.02;
    max-width: 14ch;
    overflow-wrap: break-word;
  }

  .lede {
    font-size: 1rem;
  }

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .result-line {
    flex-direction: column;
  }

  .idea-card {
    gap: 14px;
    padding: 16px;
  }
}

@media (max-width: 500px) {
  .site-header,
  main,
  .site-footer {
    margin-left: 11px;
    margin-right: auto;
    width: min(368px, calc(100% - 22px));
  }
}