.research-navigator { flex: 0 0 auto; gap: 8px; padding: 12px 16px; }
.research-heading, .research-thread-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.research-heading-copy { min-width: 0; }
.research-kicker { display: flex; align-items: center; gap: 5px; }
.research-help { position: relative; display: grid; place-items: center; flex: none; width: 22px; height: 22px; padding: 0; border: 0; border-radius: 3px; background: transparent; color: var(--ink-3); cursor: pointer; }
.research-help::before { content: ''; position: absolute; inset: -11px; }
.research-help svg { width: 15px; height: 15px; }
.research-help:is(:hover, :focus-visible) { color: var(--hot); background: var(--surface-2); outline: 0; }
.research-controls { display: grid; grid-template-columns: minmax(0, 1fr) minmax(116px, 38%); align-items: center; gap: 12px; }
.research-views { display: grid; grid-template-columns: 1fr 1fr; min-width: 0; gap: 6px; }
.research-filter { flex: auto; width: 100%; }
.research-filter .product-sort { min-height: 48px; background: var(--surface-audio); }
.research-sample-note, .research-thread-note, .research-empty, .research-list-summary { font: var(--type-micro); color: var(--ink-3); margin: 0; }
.research-guide { width: min(440px, calc(100vw - 24px)); max-height: min(650px, calc(100dvh - 24px)); padding: 20px; overflow-y: auto; border: 1px solid var(--line-strong); border-radius: var(--radius); corner-shape: superellipse(var(--corner-k)); background: var(--surface); color: var(--ink-2); box-shadow: 0 24px 90px #0009; }
.research-guide::backdrop { background: #0009; }
.research-guide-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.research-guide h3 { margin: 0; color: var(--ink-1); font: 500 19px/1.2 var(--font-sans); }
.research-guide p { font: var(--type-body); margin: 15px 0 0; }
.research-guide-close { display: grid; place-items: center; flex: none; width: 36px; height: 36px; padding: 0; border: 1px solid var(--line); border-radius: 6px; color: var(--ink-2); background: transparent; cursor: pointer; }
.research-guide-close svg { width: 18px; height: 18px; }
.research-guide-close:is(:hover, :focus-visible) { border-color: var(--hot); color: var(--hot); outline: 0; }
.research-guide-activity { margin-top: 20px; padding-top: 15px; border-top: 1px solid var(--line); }
.research-guide-activity p, .research-guide .research-guide-footnote { color: var(--ink-3); font: var(--type-micro); }
.research-thread summary::-webkit-details-marker { display: none; }
.research-body { --row-inset: 20px; gap: 12px; }
.research-body > .product-search { flex: 0 0 auto; height: 40px; }
.research-thread-list { margin-inline: calc(-1 * var(--row-inset)); border-bottom: 1px solid var(--line); }
.research-thread-list > .research-empty { padding: 14px var(--row-inset); }
.research-thread { border-top: 1px solid var(--line); }
.research-thread summary { list-style: none; display: flex; align-items: center; gap: 10px; min-width: 0; min-height: 52px; padding: 14px var(--row-inset, 20px); cursor: pointer; }
.research-thread summary:is(:hover, :focus-visible) { outline: 0; color: var(--ink-1); background: var(--surface-2); }
.research-thread summary:focus-visible { box-shadow: inset 2px 0 var(--hot); }
.research-thread-copy { display: flex; flex: 1; min-width: 0; flex-direction: column; gap: 5px; }
.research-thread-title { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; font: var(--type-body); overflow-wrap: anywhere; line-height: 1.3; }
.research-thread[open] .research-thread-title { display: block; overflow: visible; }
.research-thread summary > svg { flex-shrink: 0; width: 16px; height: 16px; color: var(--ink-3); }
.research-thread[open] > summary > svg { transform: rotate(180deg); }
.research-thread-detail { display: flex; flex-direction: column; gap: 12px; padding: 0 var(--row-inset, 20px) 16px; }
.research-facts { display: grid; grid-template-columns: 1.25fr 1fr .5fr; gap: 8px; margin: 0; }
.research-facts dt { color: var(--ink-3); font: var(--type-label); text-transform: uppercase; letter-spacing: .03em; }
.research-facts dd { margin: 4px 0 0; color: var(--ink-1); font: var(--type-micro); }
.research-related { display: flex; flex-direction: column; margin-inline: calc(-1 * var(--row-inset, 20px)); border-bottom: 1px solid var(--line); }
.research-related button { display: flex; align-items: center; justify-content: space-between; gap: 8px; border: 0; border-top: 1px solid var(--line); padding: 10px var(--row-inset, 20px); min-height: 44px; text-align: left; color: var(--ink-2); background: transparent; cursor: pointer; font: var(--type-micro); }
.research-related svg { width: 16px; height: 16px; flex-shrink: 0; }
.research-related button:is(:hover, :focus-visible), .research-locate:is(:hover, :focus-visible), .research-source:is(:hover, :focus-visible) { outline: 0; color: var(--hot); }
.research-related button:is(:hover, :focus-visible) { color: var(--ink-1); background: var(--surface-2); }
.research-related button:focus-visible { box-shadow: inset 2px 0 var(--hot); }
.research-source, .research-locate { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; font: var(--type-micro); color: var(--ink-2); }
.research-source span { display: inline-flex; gap: 4px; align-items: center; }
.research-source svg, .research-locate svg { width: 16px; height: 16px; }
.research-locate { border: 0; padding: 4px 0; background: none; cursor: pointer; }
.research-pattern-detail { --row-inset: 20px; margin: 22px 0; }
.research-pattern-detail > .research-thread { margin-inline: calc(-1 * var(--row-inset)); }
.research-pattern-detail .section-label { margin-bottom: 10px; }
.research-pattern-detail .research-sample-note { margin-top: 10px; }
.weekly-activity { --row-inset: 20px; border-top: 1px solid var(--line); padding-top: 17px; }
.weekly-activity .section-label { padding-bottom: 10px; }
.weekly-activity-row { margin-inline: calc(-1 * var(--row-inset)); border-top: 1px solid var(--line); }
.weekly-activity-row > summary, .weekly-activity-row:not(details) { display: grid; grid-template-columns: minmax(0, 1fr) auto 16px; align-items: center; gap: 12px; min-height: 44px; padding: 10px var(--row-inset); }
.weekly-activity-row > summary { list-style: none; cursor: pointer; }
.weekly-activity-row > summary::-webkit-details-marker { display: none; }
.weekly-activity-row:not(details)::after { content: ''; }
.weekly-activity-label { color: var(--ink-2); font: var(--type-micro); }
.weekly-activity-row strong { color: var(--ink-1); font: 400 21px/1 var(--font-display); }
.weekly-activity-row[data-kind='new'][data-count='some'] strong { color: var(--hot); }
.weekly-activity-row[data-count='zero'] strong { color: var(--ink-3); }
.weekly-activity-row svg { width: 16px; height: 16px; color: var(--ink-3); transition: transform var(--dur) var(--ease); }
.weekly-activity-row[open] svg { transform: rotate(180deg); }
.weekly-activity-row > summary:is(:hover, :focus-visible) { background: var(--surface-2); outline: 0; }
.weekly-activity-row > summary:focus-visible { box-shadow: inset 2px 0 var(--hot); }
.weekly-activity-examples { list-style: none; margin: 0 var(--row-inset) 8px; padding: 0 0 0 12px; border-left: 1px solid var(--line-strong); }
.weekly-activity-examples li { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 10px; min-height: 44px; padding: 6px 0; }
.weekly-activity-examples li + li { border-top: 1px solid var(--line); }
.weekly-activity-source { display: flex; align-items: center; min-width: 0; min-height: 44px; color: var(--ink-2); font: var(--type-micro); line-height: 1.3; overflow-wrap: anywhere; }
.weekly-activity-source:is(a:hover, a:focus-visible) { color: var(--hot); outline: 0; }
.weekly-activity-unlinked { align-items: flex-start; justify-content: center; flex-direction: column; gap: 4px; }
.weekly-activity-unlinked small { color: var(--ink-3); font: var(--type-label); }
.weekly-activity-examples time { color: var(--ink-3); font: var(--type-label); white-space: nowrap; }
.weekly-activity-note { margin: 10px 0 0; color: var(--ink-3); font: var(--type-micro); }
.weekly-activity-coverage { color: var(--hot); }
.research-thread-host[hidden], .product-scanner[hidden], .product-body[hidden] { display: none; }
@media (max-width: 760px) {
  .research-body, .research-pattern-detail, .weekly-activity { --row-inset: 16px; }
}
@media (max-width: 360px) {
  .research-navigator { padding: 14px 16px; }
  .research-controls { grid-template-columns: minmax(0, 1fr) 114px; gap: 5px; }
  .research-views button { font-size: 11px; }
  .research-facts { grid-template-columns: 1fr 1fr; }
  .research-thread-actions { flex-wrap: wrap; gap: 6px; }
  .weekly-activity-examples li { grid-template-columns: 1fr; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) { .weekly-activity-row svg { transition: none; } }