/* EconBERT research page; isolated from the home-page inference UI. */
.econbert-main .story-heading {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  gap: clamp(2rem, 5vw, 5rem);
}

.econbert-main .story-heading h1 {
  font-size: clamp(2.75rem, 5.4vw, 4.8rem);
  line-height: 1.04;
  letter-spacing: -0.055em;
}

.econbert-main em {
  color: var(--aqua);
  font-weight: inherit;
}

.econbert-main .story-intro > p {
  font-size: 0.95rem;
  line-height: 1.8;
}

.research-lenses {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2.6rem;
}

.research-lenses > span:not(.lenses-label) {
  border: 1px solid var(--dark-line);
  padding: 0.3rem 0.75rem;
  border-radius: 2rem;
  color: #c2cbdc;
  font-size: 0.72rem;
}

.lenses-label {
  margin-right: 0.6rem;
  color: #a7b1c5;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.econbert-main .method-grid {
  margin-top: 2.8rem;
}

.econbert-main .method-grid h2 {
  font-size: 1rem;
  line-height: 1.45;
}

.econbert-main .method-grid p {
  font-size: 0.84rem;
  line-height: 1.8;
}

.corpus-section,
.topic-section {
  margin-top: clamp(4.5rem, 8vw, 7rem);
}

.econbert-section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.75fr);
  align-items: end;
  gap: clamp(2rem, 6vw, 5rem);
}

.econbert-section-heading h2,
.econbert-main .investment-purpose h2 {
  margin: 0.8rem 0 0;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 3.8vw, 3.5rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.econbert-section-heading > p {
  margin: 0;
  color: #b5bed0;
  font-size: 0.88rem;
  line-height: 1.8;
}

.corpus-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.2rem;
}

.corpus-grid article {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.6rem;
  background: #172238;
  border: 1px solid var(--dark-line);
  border-radius: 0.45rem;
}

.corpus-grid .corpus-status {
  margin: 0;
  color: var(--aqua);
  font-size: 0.61rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.corpus-grid .corpus-status.extension {
  color: var(--violet);
}

.corpus-grid h3 {
  margin: 1rem 0 0;
  font-size: 1rem;
  line-height: 1.4;
}

.corpus-grid p:not(.corpus-status) {
  margin: 0.7rem 0 0;
  color: #b5bed0;
  font-size: 0.83rem;
}

.corpus-note,
.cloud-source {
  margin: 1rem 0 0;
  color: #a7b1c5;
  font-size: 0.75rem;
  line-height: 1.7;
}

.topic-selector {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.6rem;
  margin: 2.4rem 0 1.2rem;
}

.topic-selector a {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--dark-line);
  border-radius: 0.3rem;
  color: #c2cbdc;
  font-size: 0.78rem;
  font-weight: 650;
  line-height: 1.4;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.topic-selector a span {
  color: var(--aqua);
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
}

.topic-selector a:hover {
  border-color: var(--aqua);
  background: #1c2d3e;
}

.topic-selector a[aria-selected="true"] {
  border-color: var(--aqua);
  background: var(--aqua);
  color: var(--ink);
}

.topic-selector a[aria-selected="true"] span {
  color: var(--ink);
}

.topic-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(1.4rem, 3vw, 2.3rem);
  padding: clamp(1.2rem, 2.5vw, 2rem);
  margin-bottom: 1rem;
  border: 1px solid var(--dark-line);
  border-radius: 0.45rem;
  background: #172238;
}

.topic-panel[hidden] {
  display: none;
}

.topic-panel figure {
  min-width: 0;
  margin: 0;
}

.topic-panel figure a {
  display: block;
  overflow: hidden;
  background: white;
  border-radius: 0.2rem;
}

.topic-panel img {
  display: block;
  width: 100%;
  height: auto;
}

.topic-panel figcaption {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.7rem;
  color: #a7b1c5;
  font-size: 0.65rem;
}

.topic-panel figcaption span {
  color: var(--aqua);
}

.topic-context .topic-kicker {
  margin: 0;
  color: var(--aqua);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.topic-context h3 {
  margin: 0.8rem 0;
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.4vw, 2rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.topic-context > p {
  color: #b5bed0;
  font-size: 0.82rem;
  line-height: 1.7;
}

.topic-context .question-label {
  margin: 1.3rem 0 0.45rem;
  color: var(--coral);
  font-size: 0.61rem;
  font-weight: 750;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.topic-context .topic-question {
  margin: 0;
  color: var(--white);
  font-size: 0.9rem;
}

.topic-context .topic-markets {
  margin: 1.2rem 0 0;
  padding-top: 0.8rem;
  border-top: 1px solid var(--dark-line);
  color: #a7b1c5;
  font-size: 0.67rem;
}

.cloud-reading-guide {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--dark-line);
}

.cloud-reading-guide strong {
  font-size: 0.8rem;
}

.cloud-reading-guide p {
  max-width: 630px;
  margin: 0.3rem 0 0;
  color: #b5bed0;
  font-size: 0.75rem;
}

.tone-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  flex-shrink: 0;
  font-size: 0.68rem;
  color: #c2cbdc;
}

.tone-legend span {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.tone-legend i {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
}

.tone-negative { background: #d6604d; }
.tone-neutral { background: #a2a2a2; }
.tone-positive { background: #399456; }

.econbert-main .investment-purpose {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding-top: clamp(3rem, 6vw, 5rem);
  border-top: 1px solid var(--dark-line);
}

.econbert-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.econbert-actions .light-link { margin-top: 0; }

@media (max-width: 1050px) {
  .econbert-main .story-heading,
  .econbert-section-heading {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .econbert-main .story-intro,
  .econbert-section-heading > p { max-width: 720px; }

  .corpus-grid article { padding: 1.2rem; }

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

  .topic-panel { grid-template-columns: 1fr; }

  .topic-context { max-width: 700px; }

  .cloud-reading-guide { align-items: flex-start; flex-direction: column; gap: 1rem; }
}

@media (max-width: 700px) {
  .corpus-grid,
  .econbert-main .investment-purpose { grid-template-columns: 1fr; }

  .corpus-grid { gap: 0.8rem; }

  .corpus-grid article { padding: 1.5rem; }

  .research-lenses { margin-top: 1.8rem; }

  .lenses-label { flex-basis: 100%; margin-bottom: 0.3rem; }

  .topic-selector { gap: 0.45rem; }

  .topic-selector a { padding: 0.75rem 0.6rem; gap: 0.45rem; font-size: 0.7rem; }

  .topic-panel { padding: 1rem; }

  .econbert-main .story-heading h1 { font-size: clamp(2.4rem, 8vw, 3.6rem); }

  .econbert-section-heading h2,
  .econbert-main .investment-purpose h2 { font-size: clamp(2rem, 7vw, 3rem); }
}

@media (prefers-reduced-motion: reduce) {
  .topic-selector a { transition: none; }
}