:root {
  --primary: #111318;
  --accent: #e43d30;
  --secondary: #1769e0;
  --bg: #f3f4ef;
  --text: #191b20;
  --paper: #fffdf7;
  --paper-alt: #e9efe5;
  --ink-soft: rgba(23, 33, 40, 0.68);
  --line: rgba(23, 37, 47, 0.14);
  --line-strong: rgba(23, 37, 47, 0.28);
  --gold: #d8a548;
  --blue: #315c7c;
  --shadow: 0 14px 34px rgba(23, 37, 47, 0.09);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(90deg, rgba(23, 37, 47, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, #fffaf0 0%, var(--bg) 44%, #ebe6dc 100%);
  background-size: 74px 74px, auto;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

a { color: inherit; }
p { margin: 0; }

.bt-header,
.bt-footer,
main {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding-right: 18px;
  padding-left: 18px;
}

.bt-header {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line-strong);
}

.bt-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--primary);
  text-decoration: none;
}

.bt-brand-mark {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffdf7;
  box-shadow: 0 6px 18px rgba(23, 37, 47, 0.08);
}

.bt-brand-mark svg {
  width: 100%;
  height: 100%;
}

.bt-brand strong {
  display: block;
  font-size: 23px;
  line-height: 1.05;
}

.bt-brand small {
  display: block;
  max-width: 360px;
  margin-top: 3px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.2;
}

.bt-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
}

.bt-nav a {
  color: var(--primary);
  font-size: 13px;
  font-weight: 850;
  line-height: 1.1;
  text-decoration: none;
}

.bt-home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  gap: clamp(28px, 4vw, 58px);
  align-items: center;
  padding: 52px 0 48px;
  border-bottom: 1px solid var(--line-strong);
}

.bt-kicker {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--primary);
  font-weight: 950;
  line-height: 1.02;
}

h1 {
  max-width: 780px;
  font-size: 70px;
}

.bt-hero-copy > p:not(.bt-kicker) {
  max-width: 690px;
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 20px;
}

.bt-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.bt-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 1px solid var(--primary);
  border-radius: 8px;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 900;
  text-decoration: none;
}

.bt-button.primary {
  background: var(--primary);
  color: #fffdf7;
}

.bt-button.secondary {
  background: rgba(255, 253, 247, 0.84);
  color: var(--primary);
}

.bt-hero-board {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--primary);
  box-shadow: var(--shadow);
}

.bt-hero-image {
  height: 244px;
}

.bt-hero-image img,
.bt-card-image img,
.bt-small-image img,
.bt-topic-image img,
.bt-feed-image img,
.bt-side-image img,
.page-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bt-board-copy {
  padding: 22px;
  color: #fffdf7;
}

.bt-board-copy span,
.bt-feed-meta,
.bt-card-copy span,
.bt-small-article span,
.bt-topic-grid span,
.bt-category-hero aside span,
.bt-article-head aside span,
.bt-article-box.first h2 {
  color: var(--gold);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.bt-board-copy h2 {
  margin-top: 10px;
  color: #fffdf7;
  font-size: 30px;
}

.bt-board-copy p {
  margin-top: 12px;
  color: rgba(255, 253, 247, 0.76);
}

.bt-board-copy a {
  display: inline-flex;
  margin-top: 16px;
  color: #fffdf7;
  font-weight: 900;
  text-decoration: none;
}

.bt-section {
  padding: 46px 0;
  border-bottom: 1px solid var(--line-strong);
}

.bt-section-head {
  max-width: 850px;
  margin-bottom: 24px;
}

.bt-section-head.split {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(260px, 0.28fr);
  gap: 24px;
  align-items: end;
}

.bt-section-head h2 {
  font-size: 42px;
}

.bt-section-head p:not(.bt-kicker) {
  color: var(--ink-soft);
  font-size: 17px;
}

.bt-feed-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(300px, 0.32fr);
  gap: 22px;
  align-items: start;
}

.bt-feed-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.bt-small-list {
  display: grid;
  gap: 12px;
}

.bt-feed-item a {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  min-height: 144px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.92);
  text-decoration: none;
}

.bt-feed-image {
  height: 100%;
  min-height: 144px;
  background: var(--paper-alt);
}

.bt-feed-rank {
  position: absolute;
  top: 10px;
  left: 10px;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.94);
  color: var(--secondary);
  font-weight: 950;
  box-shadow: 0 6px 16px rgba(23, 37, 47, 0.08);
}

.bt-feed-copy {
  min-width: 0;
  padding: 16px 18px;
}

.bt-feed-item h3 {
  font-size: 21px;
}

.bt-feed-item p:last-child,
.bt-small-article p,
.bt-card-copy p,
.bt-topic-grid p {
  margin-top: 6px;
  color: var(--ink-soft);
}

.bt-side-note {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fffdf7;
  box-shadow: var(--shadow);
}

.bt-side-image {
  height: 190px;
}

.bt-side-note div:last-child {
  padding: 20px;
}

.bt-side-note span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.bt-side-note strong {
  display: block;
  margin-top: 8px;
  color: var(--primary);
  font-size: 24px;
  line-height: 1.08;
}

.bt-side-note p {
  margin-top: 12px;
  color: var(--ink-soft);
}

.bt-case-grid,
.bt-topic-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.bt-card a,
.bt-topic-grid a {
  overflow: hidden;
  display: block;
  height: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.95);
  color: inherit;
  text-decoration: none;
}

.bt-card-image,
.bt-topic-image {
  height: 150px;
  background: var(--paper-alt);
}

.bt-card-copy,
.bt-topic-grid a {
  padding: 18px;
}

.bt-card-copy h3,
.bt-topic-grid strong {
  display: block;
  margin-top: 8px;
  color: var(--primary);
  font-size: 22px;
  font-weight: 950;
  line-height: 1.08;
}

.bt-topic-grid a {
  padding: 0;
}

.bt-topic-grid .bt-topic-image + span,
.bt-topic-grid .bt-topic-image + span + strong,
.bt-topic-grid .bt-topic-image + span + strong + p {
  margin-right: 18px;
  margin-left: 18px;
}

.bt-topic-grid span {
  display: block;
  margin-top: 18px;
  color: var(--accent);
}

.bt-topic-grid p {
  padding-bottom: 18px;
}

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

.bt-topic-grid.compact a {
  padding: 18px;
}

.bt-topic-grid.compact span,
.bt-topic-grid.compact strong,
.bt-topic-grid.compact p {
  margin-left: 0;
  margin-right: 0;
}

.bt-small-article a {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.92);
  padding: 16px;
  text-decoration: none;
}

.bt-small-image {
  width: 118px;
  height: 86px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--paper-alt);
}

.bt-small-article strong {
  display: block;
  color: var(--primary);
  font-size: 22px;
  line-height: 1.12;
}

.bt-source-section {
  display: grid;
  grid-template-columns: minmax(0, 0.38fr) minmax(0, 0.62fr);
  gap: 24px;
  align-items: start;
}

.bt-source-copy {
  border-left: 4px solid var(--accent);
  padding-left: 18px;
}

.bt-source-copy h2 {
  font-size: 36px;
}

.bt-source-copy p:not(.bt-kicker) {
  margin-top: 14px;
  color: var(--ink-soft);
}

.bt-resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.bt-resource-grid a {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.92);
  padding: 18px;
  text-decoration: none;
}

.bt-resource-grid span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.bt-resource-grid strong {
  display: block;
  margin-top: 8px;
  color: var(--primary);
  font-size: 19px;
  line-height: 1.15;
}

.bt-resource-grid p {
  margin-top: 8px;
  color: var(--ink-soft);
}

.bt-category-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(280px, 0.32fr);
  gap: 28px;
  align-items: center;
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--line-strong);
}

.bt-category-hero h1,
.bt-article-head h1 {
  font-size: 58px;
}

.bt-category-hero > div > p:not(.bt-kicker),
.bt-article-head > div > p:not(.bt-kicker) {
  max-width: 760px;
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 20px;
}

.bt-topic-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.bt-topic-row span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 253, 247, 0.92);
  padding: 8px 12px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 850;
}

.bt-category-hero aside,
.bt-article-head aside {
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.92);
  padding: 20px;
}

.bt-category-hero aside strong,
.bt-article-head aside strong {
  display: block;
  margin-top: 8px;
  color: var(--primary);
  font-size: 23px;
  line-height: 1.15;
}

.bt-category-feature .bt-card.feature a {
  display: grid;
  grid-template-columns: minmax(260px, 0.42fr) minmax(0, 0.58fr);
  align-items: stretch;
}

.bt-category-feature .bt-card.feature .bt-card-image {
  height: auto;
  min-height: 280px;
}

.bt-category-feature .bt-card.feature .bt-card-copy {
  align-content: center;
  padding: 28px;
}

.bt-category-feature .bt-card.feature h3 {
  font-size: 34px;
}

.bt-article-head {
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(280px, 0.32fr);
  gap: 28px;
  align-items: end;
  padding: 48px 0 30px;
}

.bt-article-head .back-link {
  display: block;
  margin-bottom: 10px;
  color: var(--primary);
  font-weight: 900;
  text-decoration: none;
}

.bt-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 720px) minmax(280px, 0.34fr);
  gap: 24px;
  align-items: start;
}

.bt-article-main {
  min-width: 0;
}

.bt-article-cover {
  overflow: hidden;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-alt);
}

.bt-article-cover .page-image {
  margin: 0;
}

.bt-article-cover img {
  height: 340px;
}

.bt-copy {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  padding: 38px;
}

.bt-copy section + section {
  margin-top: 34px;
}

.bt-copy h2 {
  margin-bottom: 12px;
  font-size: 32px;
}

.bt-copy p,
.bt-copy li {
  color: var(--ink-soft);
  font-size: 17px;
}

.bt-copy p + p {
  margin-top: 14px;
}

.bt-copy ul,
.bt-copy ol {
  margin: 14px 0 0;
  padding-left: 22px;
}

.bt-copy li + li {
  margin-top: 9px;
}

.bt-intro p:first-child {
  color: var(--text);
  font-size: 20px;
}

.bt-frame-block {
  border-left: 4px solid var(--accent);
  padding-left: 18px;
}

.bt-frame-block span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.bt-frame-block.right {
  border-left-color: var(--secondary);
}

.bt-frame-block.right span {
  color: var(--secondary);
}

.bt-warning {
  border: 1px solid rgba(242, 107, 58, 0.28);
  border-radius: 8px;
  background: #fff1e9;
  padding: 20px;
}

.bt-table-wrap {
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  margin-top: 16px;
}

.bt-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  border: 1px solid var(--line);
  background: #fffaf0;
}

.bt-table th,
.bt-table td {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 13px;
  text-align: left;
  vertical-align: top;
}

.bt-table th {
  color: var(--primary);
  font-size: 12px;
  text-transform: uppercase;
}

.bt-table td {
  color: var(--ink-soft);
}

.bt-related-list a {
  color: var(--primary);
  font-weight: 850;
}

.bt-article-aside {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 14px;
}

.bt-article-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.96);
  padding: 18px;
}

.bt-article-box.first {
  background: var(--primary);
  color: #fffdf7;
}

.bt-article-box.first p {
  color: rgba(255, 253, 247, 0.82);
}

.bt-article-box.warn {
  background: #fff1e9;
}

.bt-article-box h2 {
  margin-bottom: 10px;
  color: var(--primary);
  font-size: 18px;
}

.bt-article-box.first h2 {
  color: var(--gold);
}

.bt-article-box ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-soft);
}

.bt-article-box li + li {
  margin-top: 8px;
}

.policy-page.bt-policy {
  max-width: 860px;
  margin: 42px auto 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  padding: 42px;
}

.policy-page.bt-policy h1 {
  margin-bottom: 16px;
}

.policy-page.bt-policy h2 {
  margin-top: 28px;
  font-size: 26px;
}

.policy-page.bt-policy p,
.policy-page.bt-policy li {
  color: var(--ink-soft);
  font-size: 17px;
}

.policy-page.bt-policy p + p {
  margin-top: 14px;
}

.bt-footer {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.95fr) minmax(220px, 0.55fr);
  gap: 32px;
  margin-top: 48px;
  padding-top: 34px;
  padding-bottom: 48px;
  border-top: 1px solid var(--line-strong);
}

.bt-footer strong {
  display: block;
  color: var(--primary);
  font-size: 23px;
}

.bt-footer p {
  margin-top: 10px;
  color: var(--ink-soft);
}

.fine-print {
  font-size: 13px;
}

.bt-footer-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bt-footer-group h2 {
  margin: 0;
  color: var(--accent);
  font-size: 13px;
  text-transform: uppercase;
}

.bt-footer-group a {
  color: var(--text);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
}

@media (max-width: 1080px) {
  .bt-home-hero,
  .bt-feed-layout,
  .bt-source-section,
  .bt-category-hero,
  .bt-article-head,
  .bt-article-layout,
  .bt-footer {
    grid-template-columns: 1fr;
  }

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

  .bt-article-aside {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .bt-header,
  .bt-footer,
  main {
    width: 100%;
    padding-right: 14px;
    padding-left: 14px;
  }

  .bt-header {
    align-items: flex-start;
    flex-direction: column;
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .bt-brand {
    align-items: flex-start;
  }

  .bt-brand small {
    max-width: 260px;
  }

  .bt-nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-content: stretch;
    gap: 8px;
  }

  .bt-nav a {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 253, 247, 0.9);
    padding: 8px 10px;
    overflow-wrap: break-word;
  }

  h1 {
    font-size: 46px;
  }

  .bt-category-hero h1,
  .bt-article-head h1 {
    font-size: 42px;
  }

  .bt-section-head h2,
  .bt-source-copy h2 {
    font-size: 32px;
  }

  .bt-home-hero {
    padding-top: 34px;
  }

  .bt-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .bt-home-hero,
  .bt-section,
  .bt-feed-layout,
  .bt-source-section,
  .bt-category-hero,
  .bt-article-head,
  .bt-article-layout,
  .bt-article-main,
  .bt-hero-board,
  .bt-side-note,
  .bt-card,
  .bt-small-article a,
  .bt-topic-grid a {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }

  .bt-case-grid,
  .bt-feed-list,
  .bt-topic-grid,
  .bt-topic-grid.compact,
  .bt-resource-grid,
  .bt-section-head.split,
  .bt-article-aside,
  .bt-category-feature .bt-card.feature a {
    grid-template-columns: 1fr;
  }

  .bt-feed-item a {
    grid-template-columns: 104px minmax(0, 1fr);
    min-height: 124px;
  }

  .bt-feed-image {
    min-height: 124px;
  }

  .bt-feed-copy {
    padding: 14px;
  }

  .bt-feed-item h3 {
    font-size: 20px;
  }

  .bt-hero-image {
    height: 210px;
  }

  .bt-card-image,
  .bt-topic-image {
    height: 176px;
  }

  .bt-category-feature .bt-card.feature .bt-card-image {
    min-height: 0;
    height: 190px;
  }

  .bt-small-article a {
    grid-template-columns: 98px minmax(0, 1fr);
    gap: 12px;
  }

  .bt-small-image {
    width: 98px;
    height: 76px;
  }

  .bt-small-article strong {
    font-size: 18px;
  }

  .bt-small-article p {
    display: none;
  }

  .bt-article-cover img {
    height: 220px;
  }

  .bt-copy,
  .policy-page.bt-policy {
    padding: 24px;
  }

  .bt-copy h2 {
    font-size: 28px;
  }

  .bt-hero-copy,
  .bt-hero-copy p,
  .bt-section-head,
  .bt-section-head p,
  .bt-card-copy,
  .bt-card-copy p,
  .bt-topic-grid strong,
  .bt-topic-grid p,
  .bt-small-article strong,
  .bt-feed-item h3,
  .bt-copy,
  .bt-copy p,
  .bt-copy li,
  .bt-resource-grid strong {
    min-width: 0;
    max-width: 100%;
    overflow-wrap: anywhere;
  }
}

/* 2026 BS Target formal rebuild: sharp decision-board system. */
body {
  background: #f3f4ef;
  color: #191b20;
}

.bt-header,
.bt-footer,
main {
  max-width: 1240px;
}

.bt-header {
  min-height: 72px;
  border-top: 6px solid var(--accent);
  border-bottom: 2px solid var(--primary);
}

.bt-brand-mark {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.bt-brand strong {
  font-size: 22px;
  letter-spacing: 0;
  text-transform: uppercase;
}

.bt-brand small {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.bt-nav { gap: 7px; }
.bt-nav a {
  border-left: 1px solid var(--line-strong);
  padding: 5px 9px;
  font-size: 12px;
  text-transform: uppercase;
}

.bt-target-hero {
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: stretch;
  padding: 44px 0 34px;
}

.bt-target-hero .bt-hero-copy {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(280px, .32fr);
  column-gap: 40px;
  align-items: end;
}

.bt-target-hero .bt-kicker { grid-column: 1 / -1; }
.bt-target-hero h1 {
  max-width: 900px;
  font-size: clamp(50px, 7vw, 92px);
  line-height: .94;
}
.bt-target-hero .bt-hero-copy > p:not(.bt-kicker) {
  margin: 0;
  font-size: 18px;
}
.bt-target-hero .bt-actions { grid-column: 1 / -1; }

.bt-spotlight {
  display: grid;
  grid-template-columns: minmax(330px, .46fr) minmax(0, .54fr);
  border: 2px solid var(--primary);
  border-radius: 0;
  box-shadow: none;
}
.bt-spotlight .bt-hero-image { height: 100%; min-height: 280px; }
.bt-spotlight .bt-board-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 34px;
}
.bt-spotlight .bt-board-copy h2 { font-size: 38px; }

.bt-section { padding: 38px 0; border-bottom: 2px solid var(--primary); }
.bt-section-head { margin-bottom: 20px; }
.bt-section-head h2 { font-size: 38px; }
.bt-board-heading { max-width: 720px; }

.bt-target-rows {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 2px solid var(--primary);
  border-left: 2px solid var(--primary);
}
.bt-target-rows a {
  min-width: 0;
  min-height: 168px;
  border-right: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  background: #ffffff;
  padding: 18px;
  text-decoration: none;
}
.bt-target-rows span { color: var(--accent); font-size: 13px; font-weight: 950; }
.bt-target-rows strong {
  display: block;
  margin-top: 18px;
  font-size: 25px;
  line-height: 1;
  text-transform: uppercase;
}
.bt-target-rows p { margin-top: 9px; color: var(--ink-soft); font-size: 14px; }

.bt-pulse-grid {
  display: grid;
  grid-template-columns: minmax(0, .62fr) minmax(320px, .38fr);
  gap: 28px;
  align-items: start;
}
.bt-feed-list { grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--line-strong); }
.bt-feed-item a {
  grid-template-columns: 112px minmax(0, 1fr);
  min-height: 122px;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
}
.bt-feed-image { min-height: 122px; }
.bt-feed-rank {
  top: 8px;
  left: 8px;
  width: 30px;
  height: 30px;
  border-radius: 0;
}
.bt-feed-item h3 { font-size: 20px; }

.bt-case-panel {
  border: 2px solid var(--primary);
  background: #ffffff;
  padding: 20px;
}
.bt-case-panel .bt-section-head h2 { font-size: 30px; }
.bt-case-panel .bt-case-grid { grid-template-columns: 1fr; gap: 0; }
.bt-case-panel .bt-card a {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  border: 0;
  border-top: 1px solid var(--line-strong);
  border-radius: 0;
}
.bt-case-panel .bt-card-image { height: 100%; min-height: 108px; }
.bt-case-panel .bt-card-copy { padding: 13px; }
.bt-case-panel .bt-card-copy h3 { font-size: 18px; }
.bt-case-panel .bt-card-copy p { display: none; }

.bt-idea-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.bt-card a { border-radius: 0; box-shadow: none; }
.bt-card-image { height: 164px; }
.bt-card-copy h3 { font-size: 20px; }

.bt-model-board { background: #e7ecf5; padding-right: 22px; padding-left: 22px; }
.bt-small-list { gap: 0; border-top: 1px solid var(--line-strong); }
.bt-small-article a {
  grid-template-columns: 100px minmax(0, 1fr);
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  padding: 12px 0;
}
.bt-small-image { width: 100px; height: 72px; border-radius: 0; }
.bt-small-article strong { font-size: 20px; }

.bt-source-section {
  grid-template-columns: minmax(0, .34fr) minmax(0, .66fr);
  gap: 28px;
}
.bt-resource-grid a { border-radius: 0; }

.bt-category-hero {
  grid-template-columns: minmax(0, .72fr) minmax(290px, .28fr);
  padding: 42px 0 30px;
  border-bottom: 2px solid var(--primary);
}
.bt-category-hero h1 { font-size: clamp(48px, 6vw, 76px); line-height: .94; }
.bt-category-question { border-radius: 0 !important; border: 2px solid var(--primary) !important; border-left: 9px solid var(--accent) !important; }
.bt-topic-row span { border-radius: 0; background: #ffffff; }

.bt-index-lead .bt-card.feature a {
  grid-template-columns: minmax(300px, .45fr) minmax(0, .55fr);
  border: 2px solid var(--primary);
}
.bt-index-lead .bt-card.feature .bt-card-copy { display: flex; flex-direction: column; justify-content: center; }
.bt-index-lead .bt-card.feature h3 { font-size: 36px; }
.bt-index-list { border-top: 2px solid var(--primary); }
.bt-index-row {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  align-items: stretch;
  border-bottom: 1px solid var(--line-strong);
}
.bt-index-row > span {
  display: grid;
  place-items: center;
  border-right: 1px solid var(--line-strong);
  color: var(--accent);
  font-size: 15px;
  font-weight: 950;
}
.bt-index-row .bt-small-article a { padding-left: 14px; }
.bt-topic-grid.compact { grid-template-columns: repeat(5, minmax(0, 1fr)); }

.bt-memo-head {
  display: block;
  max-width: 980px;
  padding: 38px 0 26px;
}
.bt-memo-head h1 {
  max-width: 960px;
  font-size: clamp(45px, 6vw, 74px);
  line-height: .96;
}
.bt-memo-cover { margin-bottom: 0; border: 2px solid var(--primary); border-radius: 0; }
.bt-memo-cover img { height: clamp(320px, 42vw, 520px); }

.bt-decision-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-right: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  border-left: 2px solid var(--primary);
  background: #ffffff;
}
.bt-decision-strip > div { min-width: 0; padding: 18px; border-right: 1px solid var(--line-strong); }
.bt-decision-strip > div:last-child { border-right: 0; }
.bt-decision-strip span { color: var(--accent); font-size: 11px; font-weight: 950; text-transform: uppercase; }
.bt-decision-strip strong { display: block; margin-top: 8px; font-size: 17px; line-height: 1.25; }
.bt-decision-strip ul { margin: 8px 0 0; padding-left: 18px; }

.bt-memo-copy {
  max-width: 900px;
  margin: 32px auto 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
}
.bt-memo-copy > section {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 28px;
  border-top: 1px solid var(--line-strong);
  padding: 28px 0;
}
.bt-memo-copy > section > h2 { grid-column: 1; font-size: 20px; }
.bt-memo-copy > section > p,
.bt-memo-copy > section > ul,
.bt-memo-copy > section > ol,
.bt-memo-copy > section > .bt-table-wrap { grid-column: 2; margin-top: 0; }
.bt-memo-copy .bt-intro { display: block; border-top: 0; padding-top: 0; }
.bt-memo-copy .bt-frame-block { border-left: 0; padding-left: 0; }
.bt-memo-copy .bt-frame-block > span { grid-column: 1; }
.bt-memo-copy .bt-frame-block > h2 { grid-column: 1; }
.bt-memo-copy .bt-frame-block > p { grid-column: 2; grid-row: 1 / span 2; }
.bt-field-note .bt-section-number {
  grid-column: 1 !important;
  color: var(--secondary) !important;
  font-size: 11px !important;
  font-weight: 950;
  text-transform: uppercase;
}
.bt-field-note > div { grid-column: 2; }
.bt-field-note h2 { font-size: 25px; }
.bt-field-note p { margin-top: 10px; }
.bt-warning { border-radius: 0; }

.bt-article-end {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  max-width: 900px;
  margin: 30px auto 0;
}
.bt-article-end .bt-article-box { border-radius: 0; }
.bt-article-aside { position: static; }

@media (max-width: 960px) {
  .bt-target-hero .bt-hero-copy,
  .bt-spotlight,
  .bt-pulse-grid,
  .bt-category-hero,
  .bt-source-section { grid-template-columns: 1fr; }
  .bt-target-rows { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bt-idea-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bt-topic-grid.compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bt-topic-grid.compact a:last-child:nth-child(odd) { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .bt-header { border-top-width: 5px; }
  .bt-nav a { border: 1px solid var(--line-strong); border-radius: 0; background: #ffffff; }
  .bt-target-hero h1 { font-size: 48px; }
  .bt-target-hero .bt-hero-copy > p:not(.bt-kicker) { margin-top: 16px; }
  .bt-spotlight { grid-template-columns: 1fr; }
  .bt-spotlight .bt-hero-image { min-height: 0; height: 210px; }
  .bt-spotlight .bt-board-copy { padding: 22px; }
  .bt-spotlight .bt-board-copy h2 { font-size: 29px; }
  .bt-target-rows { grid-template-columns: 1fr; }
  .bt-target-rows a { min-height: 0; }
  .bt-idea-grid { grid-template-columns: 1fr; }
  .bt-topic-grid.compact { grid-template-columns: 1fr; }
  .bt-topic-grid.compact a:last-child:nth-child(odd) { grid-column: auto; }
  .bt-index-lead .bt-card.feature a { grid-template-columns: 1fr; }
  .bt-index-lead .bt-card.feature h3 { font-size: 28px; }
  .bt-memo-head h1 { font-size: 42px; overflow-wrap: break-word; }
  .bt-memo-cover img { height: 250px; }
  .bt-decision-strip,
  .bt-article-end { grid-template-columns: 1fr; }
  .bt-decision-strip > div { border-right: 0; border-bottom: 1px solid var(--line-strong); }
  .bt-decision-strip > div:last-child { border-bottom: 0; }
  .bt-memo-copy > section { display: block; padding: 24px 0; }
  .bt-memo-copy > section > h2 { margin-bottom: 12px; }
  .bt-memo-copy .bt-frame-block > p { margin-top: 12px; }
  .bt-field-note > div { margin-top: 9px; }
  .bt-field-note h2 { font-size: 24px; }
  .bt-index-row { grid-template-columns: 42px minmax(0, 1fr); }
  .bt-index-row .bt-small-article a { grid-template-columns: 84px minmax(0, 1fr); }
  .bt-index-row .bt-small-image { width: 84px; height: 68px; }
}