/* Bitmomo Research Hub — institutional research workspace, not a magazine archive. */
.bm-research-hub {
  padding: clamp(36px, 5vw, 64px) 0 clamp(64px, 7vw, 96px);
  background: var(--bm-bg);
}

.bm-research-hub .bm-container { max-width: var(--bm-shell-width); }

.bm-research-kicker,
.bm-research-meta,
.bm-research-section-label {
  font-family: var(--bm-font-mono);
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.bm-research-kicker {
  margin: 0 0 10px;
  color: var(--bm-accent);
  font-size: var(--bm-type-micro, 12px);
  line-height: 1.35;
}

/* Compact institutional header. Explicit geometry defeats frozen legacy flex ownership. */
.bm-research-head {
  display: block;
  width: 100%;
  margin: 0;
  padding-bottom: 24px;
  align-items: initial;
  justify-content: initial;
  flex-wrap: nowrap;
  gap: 0;
  border-bottom: 1px solid var(--bm-border);
}

.bm-research-head__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(240px, .55fr);
  gap: clamp(28px, 6vw, 74px);
  align-items: end;
}

.bm-research-head h1 {
  max-width: 820px;
  margin: 0;
  color: var(--bm-text);
  font-size: clamp(38px, 5.2vw, 58px);
  line-height: 1.02;
  letter-spacing: -.045em;
  text-wrap: balance;
}

.bm-research-head__lead {
  max-width: 820px;
  margin: 18px 0 0;
  color: var(--bm-text-muted);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.68;
  text-wrap: pretty;
}

.bm-research-head__utility {
  padding-left: 20px;
  border-left: 1px solid var(--bm-border);
}

.bm-research-head__utility p {
  margin: 0;
  padding: 11px 0;
  border-bottom: 1px solid var(--bm-border);
}

.bm-research-head__utility strong,
.bm-research-head__utility span { display: block; }

.bm-research-head__utility strong {
  color: var(--bm-text-muted);
  font-size: var(--bm-type-micro, 12px);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.bm-research-head__utility span {
  margin-top: 4px;
  color: var(--bm-text);
  font-size: var(--bm-type-meta);
  line-height: 1.45;
}

.bm-research-head__utility a {
  display: inline-block;
  margin-top: 14px;
  color: var(--bm-accent);
  font-size: var(--bm-type-meta);
  font-weight: 800;
  text-decoration: none;
  text-underline-offset: 3px;
}

.bm-research-head__utility a:hover,
.bm-research-head__utility a:focus-visible {
  text-decoration: underline;
}

.bm-research-standard-line {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
  border-top: 1px solid var(--bm-border);
  border-bottom: 1px solid var(--bm-border);
}

.bm-research-standard-line span {
  padding: 10px 12px;
  border-right: 1px solid var(--bm-border);
  color: var(--bm-text-muted);
  font: 800 var(--bm-type-micro, 12px)/1.35 var(--bm-font-mono);
  letter-spacing: .09em;
  text-align: center;
}

.bm-research-standard-line span:last-child { border-right: 0; }

/* Corpus-backed discovery. Desk selection is the primary row; topics are scoped
 * to the selected desk. Search remains a stable utility rail on desktop. */
.bm-research-discovery {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  gap: 12px 28px;
  align-items: end;
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--bm-border);
}

.bm-research-discovery > .bm-research-filter {
  grid-column: 1;
  min-width: 0;
}

.bm-research-filter--topics {
  grid-row: 2;
  padding-top: 3px;
  border-top: 1px solid var(--bm-border);
}

.bm-research-search {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: end;
  min-width: 0;
}

.bm-research-discovery > .bm-research-search:only-child {
  grid-column: 1 / -1;
  grid-row: auto;
  width: min(100%, 340px);
  justify-self: end;
}

.bm-research-filter {
  display: flex;
  max-width: 100%;
  gap: 20px;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
}

.bm-research-filter a {
  flex: 0 0 auto;
  padding: 9px 0 8px;
  border-bottom: 1px solid transparent;
  color: var(--bm-text-secondary);
  font-size: var(--bm-type-meta);
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
  text-underline-offset: 3px;
}

.bm-research-filter a:hover,
.bm-research-filter a:focus-visible { color: var(--bm-text); }

.bm-research-filter a[aria-current="page"] {
  border-color: var(--bm-accent);
  color: var(--bm-text);
}

.bm-research-search label {
  display: block;
  margin-bottom: 6px;
  color: var(--bm-text-muted);
  font-size: var(--bm-type-micro, 12px);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.bm-research-search > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.bm-research-search input,
.bm-research-search button {
  min-height: var(--bm-touch-target-mobile);
  border: 1px solid var(--bm-border);
  border-radius: 0;
  font: inherit;
}

.bm-research-search input {
  min-width: 0;
  padding: 9px 11px;
  border-right: 0;
  background: rgba(var(--bm-white-rgb), .018);
  color: var(--bm-text);
}

.bm-research-search input::placeholder { color: var(--bm-text-subtle); }

.bm-research-search button {
  padding: 9px 14px;
  background: var(--bm-bg-elevated);
  color: var(--bm-text);
  font-size: var(--bm-type-meta);
  font-weight: 800;
  cursor: pointer;
}

.bm-research-search button:hover,
.bm-research-search button:focus-visible { color: var(--bm-accent); }

/* Lead research: thesis first, figure second. */
.bm-research-lead { margin-top: clamp(32px, 4vw, 48px); }

.bm-research-section-label {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 10px;
  color: var(--bm-text-muted);
  font-size: var(--bm-type-micro, 12px);
  line-height: 1.35;
  border-bottom: 1px solid var(--bm-border);
}

.bm-research-lead__paper {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr);
  gap: clamp(28px, 5vw, 56px);
  padding: clamp(26px, 4vw, 42px) 0;
  border-bottom: 1px solid var(--bm-border);
}

.bm-research-lead__paper--text { grid-template-columns: minmax(0, 860px); }
.bm-research-lead__body { align-self: center; min-width: 0; }

.bm-research-meta {
  margin: 0;
  color: var(--bm-accent);
  font-size: var(--bm-type-micro, 12px);
  line-height: 1.55;
}

.bm-research-lead__body h2 {
  max-width: 760px;
  margin: 13px 0 0;
  font-size: clamp(30px, 4.1vw, 48px);
  line-height: 1.06;
  letter-spacing: -.038em;
  text-wrap: balance;
}

.bm-research-lead__body h2 a {
  color: var(--bm-text);
  text-decoration: none;
}

.bm-research-lead__body h2 a:hover,
.bm-research-lead__body h2 a:focus-visible { color: var(--bm-accent); }

.bm-research-lead__finding {
  max-width: 760px;
  margin-top: 24px;
  padding: 2px 0 2px 16px;
  border-left: 2px solid var(--bm-accent);
}

.bm-research-lead__finding span {
  color: var(--bm-text-muted);
  font-size: var(--bm-type-micro, 12px);
  font-weight: 800;
  letter-spacing: .1em;
}

.bm-research-lead__finding p {
  margin: 7px 0 0;
  color: var(--bm-text-muted);
  font-size: 15px;
  line-height: 1.67;
}

.bm-research-text-link {
  display: inline-block;
  margin-top: 22px;
  color: var(--bm-text);
  font-size: var(--bm-type-meta);
  font-weight: 800;
  text-decoration: none;
  text-underline-offset: 3px;
}

.bm-research-text-link:hover,
.bm-research-text-link:focus-visible {
  color: var(--bm-accent);
  text-decoration: underline;
}

.bm-research-lead__figure {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-self: stretch;
  padding-top: 8px;
  color: var(--bm-text-muted);
  font: 800 var(--bm-type-micro, 12px)/1.35 var(--bm-font-mono);
  letter-spacing: .09em;
  text-decoration: none;
}

.bm-research-lead__figure > span { margin-bottom: 8px; }

.bm-research-lead__figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--bm-border);
  border-radius: 2px;
  background: var(--bm-bg-elevated);
}

.bm-research-lead__figure:focus-visible img { border-color: var(--bm-accent); }

/* Dense institutional research library. */
.bm-research-library,
.bm-research-methodology { margin-top: clamp(46px, 6vw, 72px); }

.bm-research-library__head {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: end;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--bm-border);
}

.bm-research-library__head h2 {
  margin: 0;
  color: var(--bm-text);
  font-size: clamp(27px, 3.2vw, 38px);
  line-height: 1.08;
  letter-spacing: -.032em;
}

.bm-research-library__head > p {
  max-width: 520px;
  margin: 0;
  color: var(--bm-text-muted);
  font-size: var(--bm-type-body-sm);
  line-height: 1.58;
}

.bm-research-library__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.bm-research-library__list > li {
  display: grid;
  grid-template-columns: minmax(126px, .23fr) minmax(0, 1fr) 32px;
  gap: clamp(18px, 3vw, 36px);
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--bm-border);
}

.bm-research-library__meta span,
.bm-research-library__meta strong,
.bm-research-library__meta time,
.bm-research-library__meta small { display: block; }

.bm-research-library__meta span {
  color: var(--bm-accent);
  font: 800 var(--bm-type-micro, 12px)/1.4 var(--bm-font-mono);
  letter-spacing: .08em;
}

.bm-research-library__meta strong {
  margin-top: 6px;
  color: var(--bm-text);
  font-size: var(--bm-type-micro);
}

.bm-research-library__meta time,
.bm-research-library__meta small {
  margin-top: 4px;
  color: var(--bm-text-subtle);
  font-size: var(--bm-type-micro, 12px);
}

.bm-research-library__copy h3 {
  margin: 0;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.22;
  letter-spacing: -.018em;
  text-wrap: balance;
}

.bm-research-library__copy h3 a {
  color: var(--bm-text);
  text-decoration: none;
}

.bm-research-library__copy h3 a:hover,
.bm-research-library__copy h3 a:focus-visible { color: var(--bm-accent); }

.bm-research-library__copy p {
  max-width: 760px;
  margin: 8px 0 0;
  color: var(--bm-text-muted);
  font-size: var(--bm-type-body-sm);
  line-height: 1.6;
}

.bm-research-library__open {
  color: var(--bm-text-subtle);
  font-size: var(--bm-type-body-lg);
  text-decoration: none;
  text-align: right;
}

.bm-research-library__open:hover,
.bm-research-library__open:focus-visible { color: var(--bm-accent); }

.bm-research-library__single,
.bm-research-empty {
  margin: 0;
  padding: 24px 0;
  border-bottom: 1px solid var(--bm-border);
  color: var(--bm-text-muted);
}

.bm-research-empty strong { display: block; color: var(--bm-text); }
.bm-research-empty p { max-width: 680px; margin: 7px 0 0; }

.bm-research-empty a {
  display: inline-block;
  margin-top: 12px;
  font-weight: 800;
  text-decoration: none;
  text-underline-offset: 3px;
}

.bm-research-empty a:hover,
.bm-research-empty a:focus-visible {
  color: var(--bm-accent);
  text-decoration: underline;
}

.bm-research-pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-top: 24px;
}

.bm-research-pagination .page-numbers {
  display: inline-flex;
  min-width: 38px;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
  border: 1px solid var(--bm-border);
  color: var(--bm-text-secondary);
  font-size: var(--bm-type-micro);
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
}

.bm-research-pagination .page-numbers.current {
  border-color: var(--bm-accent);
  color: var(--bm-text);
}

.bm-research-pagination a.page-numbers:hover,
.bm-research-pagination a.page-numbers:focus-visible {
  border-color: var(--bm-text-muted);
  color: var(--bm-accent);
}

/* Methodology is important, but intentionally follows the research inventory. */
.bm-research-methodology {
  display: grid;
  grid-template-columns: minmax(250px, .72fr) minmax(0, 1.28fr);
  gap: clamp(30px, 6vw, 72px);
  padding: clamp(28px, 4vw, 42px) 0;
  border-top: 2px solid var(--bm-accent);
  border-bottom: 1px solid var(--bm-border);
}

.bm-research-methodology__intro h2 {
  margin: 0;
  color: var(--bm-text);
  font-size: clamp(30px, 3.7vw, 44px);
  line-height: 1.08;
  letter-spacing: -.035em;
  text-wrap: balance;
}

.bm-research-methodology__intro > p:last-child {
  max-width: 440px;
  margin: 14px 0 0;
  color: var(--bm-text-muted);
  font-size: var(--bm-type-body-sm);
  line-height: 1.62;
}

.bm-research-methodology__rules {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.bm-research-methodology__rules > div { padding: 0 20px 22px 0; }

.bm-research-methodology__rules > div:nth-child(even) {
  padding-left: 20px;
  border-left: 1px solid var(--bm-border);
}

.bm-research-methodology__rules > div:nth-child(n+3) {
  padding-top: 22px;
  border-top: 1px solid var(--bm-border);
}

.bm-research-methodology__rules span {
  color: var(--bm-accent);
  font: 800 var(--bm-type-micro, 12px)/1.4 var(--bm-font-mono);
}

.bm-research-methodology__rules strong {
  display: block;
  margin-top: 7px;
  color: var(--bm-text);
  font-size: var(--bm-type-body-sm);
}

.bm-research-methodology__rules p {
  margin: 6px 0 0;
  color: var(--bm-text-muted);
  font-size: var(--bm-type-meta);
  line-height: 1.58;
}

.bm-research-boundary {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--bm-border);
}

.bm-research-boundary strong {
  display: block;
  color: var(--bm-text-muted);
  font-size: var(--bm-type-micro, 12px);
  letter-spacing: .07em;
  text-transform: uppercase;
}

.bm-research-boundary p {
  max-width: 800px;
  margin: 6px 0 0;
  color: var(--bm-text-subtle);
  font-size: var(--bm-type-micro);
  line-height: 1.58;
}

@media (max-width: 900px) {
  .bm-research-head__grid,
  .bm-research-discovery,
  .bm-research-lead__paper,
  .bm-research-methodology { grid-template-columns: 1fr; }

  .bm-research-discovery > .bm-research-filter,
  .bm-research-search,
  .bm-research-discovery > .bm-research-search:only-child {
    grid-column: 1;
    grid-row: auto;
    width: 100%;
    justify-self: stretch;
  }

  .bm-research-head__utility {
    padding: 0;
    border-left: 0;
  }

  .bm-research-head__utility p {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 14px;
  }

  .bm-research-lead__figure { max-width: 620px; }

  .bm-research-library__list > li {
    grid-template-columns: 112px minmax(0, 1fr) 28px;
  }
}

@media (max-width: 768px) {
  .bm-research-hub { padding-top: 30px; }
  .bm-research-head h1 { font-size: clamp(36px, 10.5vw, 49px); }

  .bm-research-standard-line { grid-template-columns: 1fr; }

  .bm-research-standard-line span {
    border-right: 0;
    border-bottom: 1px solid var(--bm-border);
  }

  .bm-research-standard-line span:last-child { border-bottom: 0; }

  .bm-research-filter {
    margin-right: -4px;
    padding-right: 4px;
  }

  .bm-research-library__head {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }

  .bm-research-library__list > li {
    grid-template-columns: 1fr 24px;
    gap: 10px 14px;
  }

  .bm-research-library__meta {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 12px;
    align-items: baseline;
  }

  .bm-research-library__meta span,
  .bm-research-library__meta strong,
  .bm-research-library__meta time,
  .bm-research-library__meta small {
    display: inline;
    margin: 0;
  }

  .bm-research-pagination .page-numbers {
    min-width: var(--bm-touch-target-mobile);
    min-height: var(--bm-touch-target-mobile);
  }

  .bm-research-methodology__rules { grid-template-columns: 1fr; }

  .bm-research-methodology__rules > div,
  .bm-research-methodology__rules > div:nth-child(even),
  .bm-research-methodology__rules > div:nth-child(n+3) {
    padding: 16px 0;
    border-left: 0;
    border-top: 1px solid var(--bm-border);
  }
}

@media (max-width: 480px) {
  .bm-research-search > div { grid-template-columns: 1fr; }

  .bm-research-search input {
    border-right: 1px solid var(--bm-border);
    border-bottom: 0;
  }

  .bm-research-section-label {
    flex-direction: column;
    gap: 5px;
  }

  .bm-research-lead__body h2 { font-size: 30px; }

  .bm-research-pagination .prev,
  .bm-research-pagination .next { width: 100%; }
}