.research-hero, .research-card, .research-article-header { --research-accent: #356a55; --research-muted: #758179; --research-line: #7e948233; }
.research-eyebrow { display: flex; align-items: center; justify-content: space-between; gap: 12px; font: 600 11px/1.5 ui-monospace, monospace; letter-spacing: .14em; color: var(--research-muted, #758179); }
.research-eyebrow time { font-weight: 400; letter-spacing: .02em; }
.research-hero { position: relative; display: grid; grid-template-columns: 1.5fr 1fr; gap: 28px; align-items: center; padding: 32px 0 38px; margin-bottom: 32px; border-bottom: 1px solid var(--research-line); }
.markdown .research-hero h1 { font-size: clamp(32px, 3.6vw, 50px); font-weight: 700; letter-spacing: -.04em; line-height: 1.25; margin: 19px 0; }
.research-hero p { color: var(--research-muted); font-size: 15px; line-height: 1.95; max-width: 32em; margin-bottom: 26px; }
.research-hero-stats { display: flex; gap: 32px; }
.research-hero-stats > div { display: flex; align-items: baseline; gap: 10px; }
.research-hero-stats strong { font: 500 30px/1.3 ui-serif, Georgia, serif; font-variant-numeric: tabular-nums; color: var(--research-accent); }
.research-hero-stats span { color: var(--research-muted); font-size: 12px; }
.research-hero-art { min-width: 0; padding: 20px 0; color: var(--research-accent); background-image: radial-gradient(#6b8d732b .8px, transparent .8px); background-size: 18px 18px; border-radius: 50%; text-align: center; }
.research-network { display: block; width: 100%; max-width: 340px; height: auto; margin: auto; }
.research-hero-art > span { display: block; font-size: 11px; letter-spacing: .13em; color: var(--research-muted); margin: 8px -12px 0; }
.research-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.markdown .research-section-heading h2 { padding: 0; margin: 6px 0 0; font-size: 23px; font-weight: 650; }
.research-section-heading > span { font-size: 12px; opacity: .55; }
.research-filter { display: flex; gap: 12px; }
.research-filter label { flex: 1; min-width: 0; }
.research-filter input, .research-filter select { width: 100%; box-sizing: border-box; border: 1px solid #7e948242; border-radius: 8px; background: transparent; color: inherit; padding: 11px 13px; font: inherit; font-size: 13px; }
.research-filter select { width: auto; max-width: 42%; }
.research-filter option { color: #28332e; background: #faf9f6; }
.research-filter input:focus, .research-filter select:focus { outline: 2px solid #639c7b80; outline-offset: 2px; }
.research-result-count { font: 12px/1.6 ui-monospace, monospace; opacity: .55; margin: 12px 0 20px; }
.research-collection { display: grid; gap: 24px; }
.research-card { display: grid; grid-template-columns: 1.25fr 1fr; border: 1px solid var(--research-line); border-radius: 16px; overflow: hidden; background: #ffffff40; transition: box-shadow .2s, border-color .2s; }
.research-card:hover { border-color: #5d826c88; box-shadow: 0 8px 32px #233d2c07; }
.research-card[hidden], .research-empty[hidden] { display: none !important; }
.research-card-copy { display: flex; flex-direction: column; min-width: 0; padding: 27px; }
.markdown .research-card h2 { padding: 0; font-size: clamp(20px, 1.9vw, 25px); line-height: 1.5; font-weight: 650; letter-spacing: -.025em; margin: 16px 0 10px; }
.research-card h2 a { color: inherit; text-decoration: none; }
.research-card h2 a:hover { color: var(--research-accent); }
.research-card-copy > p { font-size: 13px; line-height: 1.9; color: var(--research-muted); margin: 0 0 18px; }
.research-tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 10px 0 20px; }
.research-tags > span { font: 11px/1.5 ui-monospace, monospace; border: 1px solid #7e94822b; background: #6e8c7110; padding: 3px 8px; border-radius: 5px; overflow-wrap: anywhere; }
.research-card-bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 13px; margin-top: auto; padding-top: 17px; border-top: 1px solid var(--research-line); }
.research-card-bottom > span { font-size: 11px; color: var(--research-muted); }
.research-read { white-space: nowrap; font-size: 13px; font-weight: 600; }
.research-read span { padding-left: 7px; }
.research-card-visual { display: flex; align-items: center; justify-content: center; min-width: 0; padding: 20px; background: #e5ece35c; border-left: 1px solid var(--research-line); }
.markdown .research-card-visual img { width: 100%; height: auto; max-height: 310px; object-fit: contain; margin: 0; border-radius: 5px; box-shadow: 0 4px 24px #233d2c09; }
.research-card-visual .research-network { color: var(--research-accent); }
.research-empty { padding: 50px 20px; text-align: center; opacity: .65; border: 1px dashed #7e948242; border-radius: 12px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.research-breadcrumb { display: flex; gap: 10px; font-size: 12px; color: var(--research-muted); margin-bottom: 28px; }
.research-article-header { padding: 7px 0 28px; margin-bottom: 24px; border-bottom: 1px solid var(--research-line); }
.markdown .research-article-header h1 { font-size: clamp(27px, 2.7vw, 39px); line-height: 1.45; letter-spacing: -.035em; font-weight: 700; margin: 16px 0; }
.research-deck { font-size: 15px; line-height: 1.95; color: var(--research-muted); }
.research-article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 9px 22px; font-size: 12px; color: var(--research-muted); }
.research-article-meta strong { font-size: 16px; font-weight: 650; color: var(--research-accent); }
.research-article-meta a { margin-left: auto; }
.research-versions { margin-bottom: 28px; font-size: 12px; color: var(--research-muted); }
.research-versions summary { cursor: pointer; }
.research-versions > div { display: flex; flex-wrap: wrap; gap: 10px; padding: 12px 0; }
.research-versions a { border: 1px solid #7e948233; border-radius: 5px; padding: 3px 9px; }
.research-version-note { border-left: 3px solid #8bab77; background: #8bab7710; font-size: 13px; padding: 13px 17px; margin-bottom: 20px; }
.research-article-body { min-width: 0; font-size: 16px; }
.research-article-body > p:first-child { font-size: 12px; opacity: .65; }
.research-article-body > p:nth-child(2) { border-left: 3px solid #5e866b; background: #6e8c710b; padding: 17px 20px; border-radius: 0 8px 8px 0; }
.research-article-body h2 { margin-top: 34px; padding-bottom: 10px; border-bottom: 1px solid #7e948226; }
.research-article-body table { display: block; max-width: 100%; overflow-x: auto; font-size: 13px; line-height: 1.85; }
.research-article-body th, .research-article-body td { min-width: 130px; vertical-align: top; }
.research-article-body td { padding: 13px 15px; }
.research-article-body img { background: white; border: 1px solid #7e948222; }
.research-article-body :not(pre) > code { overflow-wrap: anywhere; }
.research-evidence { margin: 40px 0 24px; border: 1px solid #7e94823d; border-radius: 10px; padding: 18px 20px; }
.research-evidence > summary { cursor: pointer; font-size: 14px; font-weight: 600; }
.research-evidence > summary:focus-visible { outline: 2px solid var(--color-link); outline-offset: 5px; }
.research-evidence[open] > summary { margin-bottom: 20px; }
.research-backlinks { border: 1px solid #7e948236; border-left: 3px solid #5e866b; border-radius: 0 8px 8px 0; padding: 15px 18px; margin: 22px 0; background: #6e8c710b; }
.research-backlinks > a { display: block; font-size: 13px; line-height: 1.8; margin-top: 7px; }
.research-backlinks > a span { white-space: nowrap; }
.research-withdrawn { padding: 60px 0; }
@media (max-width: 1000px) {
  .research-hero { grid-template-columns: 1.6fr 1fr; gap: 12px; }
  .research-hero-art > span { letter-spacing: .04em; }
  .research-card-copy { padding: 22px; }
}
@media (max-width: 650px) {
  .research-hero { grid-template-columns: 1fr; padding: 12px 0 28px; }
  .research-hero-art { display: none; }
  .markdown .research-hero h1 { font-size: 36px; }
  .research-hero-stats { gap: 27px; }
  .research-card { grid-template-columns: 1fr; }
  .research-card-visual { order: -1; border-left: none; border-bottom: 1px solid var(--research-line); padding: 17px; }
  .markdown .research-card-visual img { max-height: 210px; }
  .markdown .research-card h2 { font-size: 22px; }
  .research-card-copy { padding: 21px; }
  .research-section-heading > span { font-size: 11px; }
  .research-filter { gap: 8px; }
  .research-filter input, .research-filter select { padding: 10px; font-size: 12px; }
  .research-article-meta { gap: 8px 16px; }
  .research-article-meta a { margin-left: 0; }
  .research-article-body { font-size: 15px; }
  .research-evidence { padding: 16px 12px; }
}
@media (prefers-color-scheme: dark) {
  .research-hero, .research-card, .research-article-header { --research-accent: #a0c5aa; --research-muted: #a4b3aa; --research-line: #91aa9533; }
  .research-card { background: #ffffff03; }
  .research-card-visual { background: #c0d4c008; }
  .research-card-visual img { opacity: .9; }
  .research-eyebrow { color: #a4b3aa; }
  .research-filter option { background: #1d2521; color: #d8e1db; }
  .research-versions { color: #a4b3aa; }
  .research-article-body img { opacity: .92; }
}
@media (prefers-reduced-motion: reduce) { .research-card { transition: none; } }