/* Symbrionic research: ink, pressed white sheets, and the existing print artwork. */
@font-face { font-family: 'DM Sans'; src: url('assets/fonts/dm-sans-variable.ttf') format('truetype'); font-weight: 100 1000; font-style: normal; font-display: swap; }
.systems-research {
  --paper-section-gap: clamp(44px, 5.5vw, 68px);
  --research-print-shadow: 0 2px 3px #43526b13;
  --research-small-edge: polygon(0 .7px, 22% 0, 51% .5px, 78% 0, 100% .7px, calc(100% - .5px) 48%, 100% calc(100% - .6px), 72% 100%, 45% calc(100% - .7px), 0 100%, .5px 50%);
  margin-top: clamp(36px, 4.5vw, 56px);
}
.systems-research > .back-link { margin-bottom: 28px; min-height: 32px; }
.research-folio { filter: drop-shadow(var(--research-print-shadow)); }
.research-folio::after { content: ''; position: absolute; z-index: -1; width: 55%; height: 32px; right: 2%; bottom: -12px; background: radial-gradient(ellipse, #43526b26, transparent 70%); filter: blur(10px); transform: rotate(.5deg); }
.research-folio-sheet { position: relative; isolation: isolate; display: grid; grid-template-columns: 1fr 1fr; gap: 0; padding: 12px; background: var(--panel); clip-path: var(--paper-edge); }
.systems-research .article-heading { position: relative; z-index: 3; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: 36px 36px 36px 28px; }
.systems-research .article-heading .article-title { margin: 0; font-size: clamp(40px, 4.6vw, 58px); font-weight: 450; line-height: 1.02; letter-spacing: -.06em; text-align: left; }
.systems-research .article-heading .article-deck { max-width: 28ch; margin: 24px 0 0; font-size: clamp(18px, 1.7vw, 22px); line-height: 1.45; letter-spacing: -.03em; color: var(--reading); }
.paper-pdf { display: inline-flex; justify-content: space-between; align-items: center; gap: 32px; min-height: 44px; margin-top: 28px; padding: 11px 18px; color: #fff; background: var(--brand-blue); font-size: 14px; line-height: 1.5; clip-path: var(--research-small-edge); transition: background .15s; }
.paper-pdf:hover { background: var(--ink); }
.paper-pdf:focus-visible { outline: 2px solid var(--brand-blue); outline-offset: 5px; clip-path: none; }
.folio-meta { margin: 28px 0 0; font-family: var(--mono); font-size: 11px; font-weight: 300; line-height: 1.7; color: var(--reading); }
.systems-research .article-cover { position: relative; z-index: 3; align-self: center; margin: 0; filter: none; }
.systems-research .article-cover img { display: block; width: 100%; height: auto; aspect-ratio: 1; box-shadow: none; }
.paper-layout { display: grid; grid-template-columns: 156px minmax(0, 1fr) 156px; gap: 40px; margin-top: clamp(56px, 6vw, 80px); }
.paper-contents { position: sticky; top: 32px; align-self: start; }
.contents-label { margin: 0 0 18px; font-family: var(--mono); font-size: 11px; font-weight: 300; line-height: 1.5; color: var(--reading); }
.contents-toggle { display: none; }
.paper-contents ol { list-style: none; margin: 0; padding: 0; }
.paper-contents li { margin: 0 0 4px; }
.paper-contents a { position: relative; isolation: isolate; display: block; padding: 10px 12px; font-size: 13px; line-height: 1.5; color: var(--reading); transition: color .15s; }
.paper-contents a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.paper-contents a[aria-current] { color: #fff; }
.paper-contents a[aria-current]::before { content: ''; position: absolute; inset: 0; z-index: -1; background: var(--brand-blue) url('assets/charcoal-grain.svg'); background-size: 640px 640px; clip-path: var(--research-small-edge); }
.paper-contents a:focus-visible { outline-color: var(--brand-blue); }
.systems-research .paper-body { max-width: none; min-width: 0; margin: 0; filter: drop-shadow(var(--research-print-shadow)); }
.research-reading-sheet { position: relative; isolation: isolate; padding: 32px 32px 40px; background: var(--panel); clip-path: var(--paper-edge); }
.research-reading-sheet > .paper-section { position: relative; z-index: 3; }
.paper-section { scroll-margin-top: 40px; }
.paper-section:focus { outline: none; }
.paper-section + .paper-section { margin-top: var(--paper-section-gap); }
.systems-research .paper-body h2 { margin: 0 0 24px; font-size: clamp(27px, 2.6vw, 32px); line-height: 1.15; letter-spacing: -.045em; font-weight: 450; }
.systems-research .paper-body h3 { margin: 30px 0 14px; font-size: 22px; line-height: 1.3; letter-spacing: -.035em; font-weight: 450; }
.systems-research .paper-body p, .systems-research .paper-body li { font-family: var(--sans); font-size: 18px; line-height: 1.75; letter-spacing: -.012em; color: var(--reading); }
.systems-research .paper-body p { margin: 0 0 20px; }
.systems-research .paper-body p:last-child { margin-bottom: 0; }
.systems-research .paper-summary h2 { font-size: 25px; color: var(--brand-blue); }
.systems-research .paper-summary p:first-of-type { font-size: 23px; line-height: 1.5; letter-spacing: -.035em; color: var(--ink); }
.systems-research .paper-summary p { font-size: 17px; line-height: 1.65; }
.systems-research .paper-questions { margin: 28px 0; padding-left: 25px; }
.systems-research .paper-questions li { padding-left: 9px; margin-bottom: 24px; font-size: 21px; line-height: 1.5; letter-spacing: -.025em; color: var(--ink); }
.paper-questions li::marker { color: var(--brand-blue); font-size: 14px; }
.paper-approach { margin-top: 8px; min-height: 44px; text-decoration: underline; }
.paper-details { position: sticky; top: 32px; align-self: start; color: var(--reading); font-size: 12px; line-height: 1.6; }
.paper-details dl { margin: 0; }
.paper-details dl > div { margin-bottom: 22px; }
.paper-details dt, .paper-related > p { margin: 0 0 10px; font-family: var(--mono); font-size: 11px; font-weight: 300; color: var(--reading); }
.paper-details dd { margin: 0; }
.paper-details time { font-family: var(--mono); font-size: 11px; font-weight: 300; }
.paper-details a:hover { color: var(--ink); }
.research-lab-signature { display: inline-flex; align-items: center; gap: 7px; font-size: 18px; line-height: 1.2; letter-spacing: -.055em; font-weight: 500; color: var(--ink); }
.research-lab-signature img { width: 19px; height: 19px; object-fit: contain; }
.paper-related { margin-top: 30px; }
.related-research-link { display: block; margin-top: 16px; filter: drop-shadow(var(--research-print-shadow)); transition: transform .15s; }
.related-research-link:hover { transform: translateY(-2px); }
.related-research-sheet { --paper-edge: var(--research-small-edge); position: relative; isolation: isolate; padding: 6px; background: var(--panel); clip-path: var(--paper-edge); }
.related-research-sheet > img { position: relative; z-index: 3; display: block; width: 100%; height: auto; aspect-ratio: 1732 / 908; }
.related-research-sheet > span { position: relative; z-index: 3; display: block; padding: 12px 5px 10px; font-size: 13px; line-height: 1.25; letter-spacing: -.025em; color: var(--ink); }
@media (max-width: 1100px) {
  .paper-layout { grid-template-columns: 148px minmax(0, 1fr); gap: 36px; }
  .paper-details { grid-column: 2; position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 36px; padding-top: 28px; border-top: 1px solid var(--editorial-rule); }
  .paper-related { margin: 0; }
  .related-research-link { max-width: 220px; }
}
@media (max-width: 800px) {
  .paper-layout { display: block; margin-top: 40px; }
  .paper-contents { top: 12px; z-index: 5; margin-bottom: 32px; padding-inline: 14px; background: var(--brand-blue) url('assets/charcoal-grain.svg'); background-size: 640px 640px; color: #fff; clip-path: none; box-shadow: 0 3px 8px #43526b12; }
  .contents-label { display: none; }
  .contents-toggle { display: flex; align-items: center; gap: 12px; width: 100%; min-height: 54px; padding: 12px 0; background: none; color: #fff; text-align: left; font-size: 13px; line-height: 1.5; }
  .contents-current { margin-left: auto; }
  .contents-toggle svg { flex-shrink: 0; transition: transform .15s; }
  .contents-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
  .paper-contents ol { padding-bottom: 12px; }
  .paper-contents a { color: #fff; padding: 12px; }
  .paper-contents a:hover { color: #fff; }
  .paper-contents a[aria-current] { background: #ffffff14; }
  .paper-contents a[aria-current]::before { content: none; }
  .paper-contents a:focus-visible, .contents-toggle:focus-visible { outline-color: #fff; }
  .paper-contents[data-collapsed="true"] ol { display: none; }
  .paper-section { scroll-margin-top: 100px; }
  .systems-research .paper-body { max-width: 680px; margin-inline: auto; }
  .paper-details { margin-top: 48px; }
}
@media (max-width: 640px) {
  .systems-research { margin-top: 32px; }
  .systems-research > .back-link { margin-bottom: 20px; }
  .research-folio-sheet { grid-template-columns: 1fr; padding: 9px; }
  .systems-research .article-heading { padding: 28px 20px 32px; }
  .systems-research .article-heading .article-title { font-size: clamp(40px, 10vw, 52px); }
  .systems-research .article-heading .article-deck { font-size: 20px; max-width: 28ch; }
  .folio-meta { margin-top: 24px; }
  .research-reading-sheet { padding: 28px 24px 36px; }
  .systems-research .paper-summary p:first-of-type { font-size: 22px; }
  .systems-research .paper-body h3 { font-size: 21px; }
  .systems-research .paper-questions li { font-size: 20px; }
  .paper-details { grid-template-columns: 1fr; gap: 20px; }
  .paper-details dl { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
  .paper-details dl > div { margin: 0; }
  .paper-related { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
  .paper-related > p { grid-column: 1 / -1; margin: 0; }
  .related-research-link { margin: 0; }
}
@media (prefers-reduced-motion: reduce) { .paper-pdf, .paper-contents a, .contents-toggle svg, .related-research-link { transition: none; } }