/* ================================================================
   51 INSIGHTS PUBLISHING LAYER
   Homepage feed, archive, shared research module
   ================================================================ */

.publication-home,
.insights-archive-main,
.research-live-ideas {
  --insights-paper: #ffffff;
  --insights-ink: #101114;
  --insights-muted: #61646b;
  --insights-rule: rgba(16, 17, 20, 0.11);
  --insights-wash: #f5f6f8;
}

[data-theme='dark'] .publication-home,
[data-theme='dark'] .insights-archive-main,
[data-theme='dark'] .research-live-ideas {
  --insights-paper: #0e0f12;
  --insights-ink: #f3f4f6;
  --insights-muted: #9da1aa;
  --insights-rule: rgba(255, 255, 255, 0.11);
  --insights-wash: #08090b;
}

.publication-home {
  position: relative;
  overflow: hidden;
  padding: 104px 0 112px;
  background:
    radial-gradient(circle at 6% 0%, rgba(88, 199, 247, 0.11), transparent 31%),
    var(--insights-wash);
  border-top: 1px solid var(--insights-rule);
  border-bottom: 1px solid var(--insights-rule);
}

.publication-home::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(16, 17, 20, 0.025) 1px, transparent 1px);
  background-size: 100% 96px;
  mask-image: linear-gradient(to bottom, black, transparent 76%);
}

[data-theme='dark'] .publication-home::before {
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px);
}

.publication-home .container {
  position: relative;
  z-index: 1;
}

.publication-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 430px);
  align-items: end;
  gap: 56px;
  margin-bottom: 34px;
}

.publication-eyebrow,
.insights-archive-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 17px;
  font:
    600 11px/1 'IBM Plex Mono',
    monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #0a06e5;
}

[data-theme='dark'] .publication-eyebrow,
[data-theme='dark'] .insights-archive-eyebrow {
  color: #98ea65;
}

.publication-eyebrow::before,
.insights-archive-eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: currentColor;
}

.publication-heading h2 {
  max-width: 760px;
  font-size: clamp(34px, 4.5vw, 58px);
  line-height: 0.98;
  letter-spacing: -0.055em;
  color: var(--insights-ink);
}

.publication-heading-copy {
  padding-bottom: 4px;
  color: var(--insights-muted);
  font-size: 16px;
  line-height: 1.65;
}

.publication-heading-copy a {
  display: inline-flex;
  align-items: center;
  margin-top: 17px;
  color: var(--insights-ink);
  font-weight: 600;
}

.publication-heading-copy a:hover {
  color: #0a06e5;
}

.insights-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  padding-bottom: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

.insights-filter-bar::-webkit-scrollbar {
  display: none;
}

.insights-filter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 15px;
  flex: 0 0 auto;
  border: 1px solid var(--insights-rule);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.48);
  color: var(--insights-muted);
  font:
    500 13px/1 'DM Sans',
    sans-serif;
  cursor: pointer;
  transition: 180ms ease;
}

[data-theme='dark'] .insights-filter {
  background: rgba(255, 255, 255, 0.035);
}

.insights-filter:hover {
  color: var(--insights-ink);
  border-color: rgba(10, 6, 229, 0.35);
}

.insights-filter.is-active,
.insights-filter[aria-pressed='true'] {
  color: #ffffff;
  background: #0a06e5;
  border-color: #0a06e5;
}

.insights-filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 999px;
  background: rgba(16, 17, 20, 0.07);
  font:
    600 10px/1 'IBM Plex Mono',
    monospace;
}

.insights-filter.is-active .insights-filter-count,
.insights-filter[aria-pressed='true'] .insights-filter-count {
  background: rgba(255, 255, 255, 0.18);
}

.publication-lead-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(340px, 0.82fr);
  gap: 18px;
  align-items: stretch;
}

[data-insights-feature] {
  min-width: 0;
}

.insights-feature-card,
.insights-stream-card,
.insights-archive-card > a {
  background: var(--insights-paper);
  border: 1px solid var(--insights-rule);
  color: var(--insights-ink);
  transition:
    transform 220ms var(--ease-out),
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.insights-feature-card:hover,
.insights-stream-card:hover,
.insights-archive-card > a:hover {
  transform: translateY(-3px);
  border-color: rgba(10, 6, 229, 0.33);
  box-shadow: 0 18px 48px rgba(10, 6, 229, 0.09);
}

.insights-feature-card {
  display: grid;
  min-height: 100%;
  grid-template-rows: minmax(320px, 1fr) auto;
  overflow: hidden;
  border-radius: 22px;
}

.insights-card-image {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: #dfe4eb;
}

.insights-card-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms var(--ease-out);
}

.insights-feature-card:hover .insights-card-image img,
.insights-stream-card:hover .insights-card-image img,
.insights-archive-card > a:hover .insights-card-image img {
  transform: scale(1.025);
}

.insights-image-scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.insights-image-fallback {
  display: grid;
  width: 100%;
  height: 100%;
  min-height: 220px;
  place-items: center;
  background:
    radial-gradient(circle at 25% 20%, rgba(88, 199, 247, 0.75), transparent 28%),
    linear-gradient(145deg, #0a06e5, #111116 72%);
}

.insights-image-fallback span {
  color: #ffffff;
  font:
    700 72px/1 'Sora',
    sans-serif;
  letter-spacing: -0.08em;
}

.insights-feature-copy {
  padding: 31px 32px 34px;
}

.insights-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--insights-muted);
  font:
    500 10px/1.3 'IBM Plex Mono',
    monospace;
  letter-spacing: 0.015em;
}

.insights-category,
.insights-access {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  font-weight: 600;
}

.insights-category {
  color: #0a06e5;
  background: rgba(10, 6, 229, 0.08);
}
.insights-category--signals {
  color: #075f86;
  background: rgba(88, 199, 247, 0.18);
}
.insights-category--ceo-notes {
  color: #6b4500;
  background: rgba(245, 186, 73, 0.17);
}
.insights-category--briefing {
  color: #31660f;
  background: rgba(152, 234, 101, 0.2);
}
.insights-category--reports {
  color: #5a36b6;
  background: rgba(132, 92, 246, 0.14);
}
.insights-category--podcast {
  color: #9b2448;
  background: rgba(244, 114, 182, 0.14);
}

[data-theme='dark'] .insights-category--signals {
  color: #75d2f8;
}
[data-theme='dark'] .insights-category--ceo-notes {
  color: #f5c469;
}
[data-theme='dark'] .insights-category--briefing {
  color: #a8ef78;
}
[data-theme='dark'] .insights-category--reports {
  color: #aa8af4;
}
[data-theme='dark'] .insights-category--podcast {
  color: #f68caf;
}

.insights-access {
  color: var(--insights-muted);
  background: transparent;
  box-shadow: inset 0 0 0 1px var(--insights-rule);
}

.insights-feature-copy h3 {
  max-width: 850px;
  margin-bottom: 14px;
  color: var(--insights-ink);
  font-size: clamp(28px, 3.2vw, 46px);
  line-height: 1.03;
}

.insights-feature-copy p {
  max-width: 770px;
  color: var(--insights-muted);
  font-size: 16px;
  line-height: 1.58;
}

.insights-read-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 22px;
  color: var(--insights-ink);
  font-size: 13px;
  font-weight: 650;
}

.insights-read-link span {
  transition: transform 180ms ease;
}
a:hover .insights-read-link span {
  transform: translateX(3px);
}

.publication-latest-stream {
  display: grid;
  gap: 9px;
  min-width: 0;
}

.insights-stream-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 128px;
  gap: 16px;
  min-height: 0;
  padding: 15px;
  overflow: hidden;
  border-radius: 16px;
}

.insights-stream-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 3px 0 3px 3px;
}

.insights-stream-card .insights-card-meta {
  margin-bottom: 9px;
}
.insights-stream-card
  .insights-card-meta
  > span:not(.insights-category):not(.insights-access):not([aria-hidden]) {
  display: none;
}

.insights-stream-card h3 {
  color: var(--insights-ink);
  font-size: clamp(16px, 1.65vw, 21px);
  line-height: 1.16;
  letter-spacing: -0.035em;
}

.insights-stream-card p {
  display: -webkit-box;
  margin-top: 8px;
  overflow: hidden;
  color: var(--insights-muted);
  font-size: 12px;
  line-height: 1.4;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.insights-stream-card .insights-card-image {
  min-height: 122px;
  border-radius: 10px;
}

.insights-subscribe-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 36px;
  margin: 22px 0;
  padding: 30px 34px;
  overflow: hidden;
  border-radius: 18px;
  color: #ffffff;
  background:
    radial-gradient(circle at 78% -60%, rgba(88, 199, 247, 0.5), transparent 44%),
    linear-gradient(115deg, #0a06e5, #090a13 72%);
  box-shadow: 0 22px 48px rgba(10, 6, 229, 0.16);
}

.insights-subscribe-kicker {
  display: block;
  margin-bottom: 8px;
  color: #98ea65;
  font:
    600 10px/1 'IBM Plex Mono',
    monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.insights-subscribe-card h3 {
  margin-bottom: 7px;
  color: #ffffff;
  font-size: clamp(22px, 2.7vw, 32px);
}

.insights-subscribe-card p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.insights-subscribe-card .btn {
  min-width: 168px;
  background: #ffffff;
  color: #0a06e5;
  box-shadow: none;
}

.insights-subscribe-card .btn:hover {
  background: #98ea65;
  color: #101114;
}

.publication-more-grid,
.insights-archive-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.insights-archive-card {
  min-width: 0;
}

.insights-archive-card > a {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  overflow: hidden;
  border-radius: 18px;
}

.insights-archive-card .insights-card-image {
  aspect-ratio: 16 / 10;
}

.insights-archive-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 23px 23px 25px;
}

.insights-archive-copy h2 {
  margin-bottom: 10px;
  color: var(--insights-ink);
  font-size: 21px;
  line-height: 1.13;
}

.insights-archive-copy p {
  display: -webkit-box;
  overflow: hidden;
  color: var(--insights-muted);
  font-size: 14px;
  line-height: 1.52;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.insights-archive-copy .insights-read-link {
  margin-top: auto;
  padding-top: 20px;
}

.insights-context-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  overflow: hidden;
  border-radius: 18px;
  color: #ffffff;
}

.insights-context-card--terminal {
  background:
    radial-gradient(circle at 88% 8%, rgba(88, 199, 247, 0.42), transparent 35%),
    linear-gradient(145deg, #09056d, #05060c 68%);
}

.insights-context-card--index {
  background:
    radial-gradient(circle at 88% 8%, rgba(152, 234, 101, 0.3), transparent 35%),
    linear-gradient(145deg, #10271c, #05060c 70%);
}

.insights-context-kicker {
  margin-bottom: auto;
  padding-bottom: 56px;
  color: #98ea65;
  font:
    600 10px/1 'IBM Plex Mono',
    monospace;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.insights-context-card strong {
  max-width: 300px;
  margin-bottom: 11px;
  font:
    600 24px/1.08 'Sora',
    sans-serif;
  letter-spacing: -0.04em;
}

.insights-context-card p {
  max-width: 310px;
  color: rgba(255, 255, 255, 0.67);
  font-size: 13px;
  line-height: 1.5;
}

.insights-context-card a {
  display: inline-flex;
  margin-top: 20px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 650;
}

.insights-empty {
  padding: 70px 24px;
  text-align: center;
  border: 1px dashed var(--insights-rule);
  border-radius: 18px;
  color: var(--insights-muted);
}

.insights-empty strong {
  display: block;
  margin-bottom: 8px;
  color: var(--insights-ink);
  font:
    600 20px/1.2 'Sora',
    sans-serif;
}

/* Archive */
.insights-archive-main {
  min-height: 100vh;
  background: var(--insights-wash);
}

.insights-archive-hero {
  padding: 154px 0 62px;
  background:
    radial-gradient(circle at 84% 10%, rgba(88, 199, 247, 0.14), transparent 28%),
    var(--insights-paper);
  border-bottom: 1px solid var(--insights-rule);
}

.insights-archive-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 440px);
  align-items: end;
  gap: 72px;
}

.insights-archive-hero h1 {
  max-width: 780px;
  color: var(--insights-ink);
  font-size: clamp(46px, 6vw, 76px);
  line-height: 0.96;
}

.insights-archive-hero p {
  color: var(--insights-muted);
  font-size: 17px;
  line-height: 1.65;
}

.insights-archive-controls {
  padding: 30px 0 12px;
}

.insights-archive-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-bottom: 18px;
}

.insights-search-wrap {
  position: relative;
  max-width: 500px;
}

.insights-search-wrap svg {
  position: absolute;
  top: 50%;
  left: 16px;
  width: 17px;
  height: 17px;
  color: var(--insights-muted);
  transform: translateY(-50%);
}

.insights-search {
  width: 100%;
  height: 46px;
  padding: 0 18px 0 45px;
  border: 1px solid var(--insights-rule);
  border-radius: 999px;
  outline: none;
  background: var(--insights-paper);
  color: var(--insights-ink);
  font:
    14px/1 'DM Sans',
    sans-serif;
}

.insights-search:focus {
  border-color: #0a06e5;
  box-shadow: 0 0 0 3px rgba(10, 6, 229, 0.1);
}

.insights-results-count {
  color: var(--insights-muted);
  font:
    500 11px/1 'IBM Plex Mono',
    monospace;
}

.insights-archive-section {
  padding: 18px 0 110px;
}
.insights-archive-section .insights-archive-grid {
  scroll-margin-top: 96px;
}

.insights-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 44px;
}

.insights-pagination button {
  min-width: 40px;
  height: 40px;
  padding: 0 13px;
  border: 1px solid var(--insights-rule);
  border-radius: 999px;
  background: var(--insights-paper);
  color: var(--insights-muted);
  font:
    600 12px/1 'DM Sans',
    sans-serif;
  cursor: pointer;
}

.insights-pagination button:hover:not(:disabled),
.insights-pagination button[aria-current='page'] {
  border-color: #0a06e5;
  background: #0a06e5;
  color: #ffffff;
}

.insights-pagination button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.insights-pagination-gap {
  display: inline-flex;
  width: 24px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--insights-faint);
  font:
    600 13px/1 'DM Sans',
    sans-serif;
}

/* Shared research module */
.research-live-ideas {
  padding: 90px 0;
  background: var(--surface);
}

.research-live-ideas .research-ideas-header {
  margin-bottom: 28px;
}
.research-live-ideas .research-ideas-header a {
  color: var(--text-primary);
}

.research-live-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(330px, 0.78fr);
  gap: 18px;
}

.research-live-grid .insights-feature-card,
.research-live-grid .insights-stream-card,
.research-live-grid .insights-feature-copy h3,
.research-live-grid .insights-stream-card h3 {
  color: var(--insights-ink, var(--text-primary));
}

.research-live-grid .insights-feature-card {
  grid-template-rows: minmax(300px, 1fr) auto;
}
.research-live-list {
  display: grid;
  gap: 12px;
}

@media (max-width: 980px) {
  .publication-heading,
  .insights-archive-hero-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .publication-lead-grid,
  .research-live-grid {
    grid-template-columns: 1fr;
  }
  .publication-latest-stream {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .insights-stream-card {
    grid-template-columns: 1fr;
  }
  .insights-stream-card .insights-card-image {
    grid-row: 1;
    aspect-ratio: 16 / 9;
    min-height: 0;
  }
  .publication-more-grid,
  .insights-archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .publication-home {
    padding: 72px 0 78px;
  }
  .publication-heading {
    margin-bottom: 26px;
  }
  .publication-heading h2 {
    font-size: 38px;
  }
  .publication-heading-copy {
    font-size: 15px;
  }
  .publication-latest-stream {
    grid-template-columns: 1fr;
  }
  .insights-feature-card {
    grid-template-rows: auto auto;
  }
  .insights-feature-card .insights-card-image {
    aspect-ratio: 4 / 3;
  }
  .insights-feature-copy {
    padding: 24px 22px 26px;
  }
  .insights-feature-copy h3 {
    font-size: 30px;
  }
  .insights-stream-card {
    grid-template-columns: minmax(0, 1fr) 112px;
  }
  .insights-stream-card .insights-card-image {
    grid-row: auto;
    aspect-ratio: auto;
    min-height: 112px;
  }
  .insights-subscribe-card {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 27px 24px;
  }
  .insights-subscribe-card .btn {
    width: 100%;
  }
  .publication-more-grid,
  .insights-archive-grid {
    grid-template-columns: 1fr;
  }
  .insights-context-card {
    min-height: 370px;
  }
  .insights-archive-hero {
    padding: 124px 0 50px;
  }
  .insights-archive-hero h1 {
    font-size: 48px;
  }
  .insights-archive-tools {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .insights-search-wrap {
    max-width: none;
  }
  .insights-archive-section {
    padding-bottom: 74px;
  }
  .research-live-ideas {
    padding: 70px 0;
  }
}

@media (max-width: 480px) {
  .insights-filter-bar {
    margin-right: calc(var(--page-gutter) * -1);
    padding-right: var(--page-gutter);
  }
  .insights-stream-card {
    grid-template-columns: 1fr;
  }
  .insights-stream-card .insights-card-image {
    grid-row: 1;
    aspect-ratio: 16 / 9;
  }
  .insights-card-meta {
    gap: 6px;
  }
  .insights-category,
  .insights-access {
    min-height: 22px;
    padding: 0 8px;
  }
  .insights-pagination {
    flex-wrap: wrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .insights-feature-card,
  .insights-stream-card,
  .insights-archive-card > a,
  .insights-card-image img {
    transition: none;
  }
}