/* StatsOtter / Research workspace
   A single visual layer over the legacy component stylesheet. Brand blue and
   the otter stay; layout, type, surfaces and responsive behavior are renewed. */
body.research-ui {
  --bg: #f6f8fc; --panel: #fff; --panel-2: #f0f4fb;
  --ink: #14213d; --ink-2: #40516e; --muted: #687893;
  --line: #dfe6f1; --line-2: #c8d4e6; --brand: #0c4578;
  --brand-2: #2563eb; --brand-h: #0b3760; --brand-soft: #edf3ff;
  --brand-glow: rgba(37,99,235,.1); --cta: #0c4578; --cta-h: #12385e;
  --radius: 12px; --wide: 1392px; --shadow: 0 3px 14px rgba(20,33,61,.035);
  --shadow-lg: 0 12px 36px rgba(20,33,61,.08);
  background: var(--bg); color: var(--ink); padding: 0;
  font-family: var(--sans); -webkit-font-smoothing: antialiased;
  background-image: none; animation: none; font-size: 15px;
}
body.research-ui *, body.research-ui *::before, body.research-ui *::after { box-sizing: border-box; }
body.research-ui [hidden] { display: none !important; }
body.research-ui .bg-aurora { display: none; }
body.research-ui a { transition: color .16s ease, background .16s ease; }
body.research-ui a:hover { text-decoration: none; }
body.research-ui a:focus-visible, body.research-ui button:focus-visible,
body.research-ui input:focus-visible, body.research-ui textarea:focus-visible,
body.research-ui select:focus-visible, body.research-ui summary:focus-visible {
  outline: 2px solid #2563eb; outline-offset: 4px; box-shadow: none;
}
body.research-ui .container { max-width: var(--wide); padding: 0 40px; }
body.research-ui .page { min-height: calc(100vh - 220px); z-index: auto; }
body.research-ui .main { min-width: 0; }
body.research-ui .research-skip { position: fixed; top: -80px; left: 20px; z-index: 9999; background: var(--ink); color: white; padding: 12px 20px; border-radius: 8px; }
body.research-ui .research-skip:focus { top: 12px; }
body.research-ui .topbar { height: 88px; position: sticky; top: 0; background: rgba(246,248,252,.95); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); box-shadow: none; z-index: 90; }
body.research-ui .topbar-inner { height: 88px; gap: 40px; max-width: var(--wide); }
body.research-ui .brand { gap: 10px; flex: 0 0 auto; }
body.research-ui .brand-mark, body.research-ui .brand-mark:has(.brand-logo-img) { width: 48px; height: 52px; background: none; border: 0; box-shadow: none; border-radius: 0; }
body.research-ui .brand-logo-img { width: 100%; height: 100%; filter: none; }
body.research-ui .brand-name { font: 750 25px/1.1 var(--sans); letter-spacing: -1px; color: var(--ink); }
body.research-ui .brand-name-acc { color: #0c4578; }
body.research-ui .brand-tag { display: block; font: 10px/1.7 var(--mono); letter-spacing: -.2px; text-transform: none; color: var(--muted); }
body.research-ui .research-nav { display: flex; align-items: center; gap: 28px; margin-left: 22px; font-size: 13px; font-weight: 550; height: 100%; }
body.research-ui .research-nav a { display: flex; gap: 6px; align-items: center; height: 100%; color: var(--muted); border-bottom: 2px solid transparent; padding-top: 2px; }
body.research-ui .research-nav a:hover, body.research-ui .research-nav a[aria-current] { color: var(--brand); border-bottom-color: var(--brand); }
body.research-ui .nav-right { margin-left: auto; gap: 24px; font-size: 13px; flex-wrap: nowrap; padding: 0; }
body.research-ui .nav-right > a:not(.btn) { font-weight: 550; white-space: nowrap; }
body.research-ui .btn { background: var(--cta); border: 1px solid var(--cta); color: #fff; border-radius: 7px; min-height: 42px; padding: 10px 17px; font: 550 13px/1.3 var(--sans); letter-spacing: 0; box-shadow: none; transform: none; animation: none; }
body.research-ui .btn:hover { background: var(--cta-h); border-color: var(--cta-h); transform: none; box-shadow: 0 4px 10px #14213d0d; }
body.research-ui .btn-sm { min-height: 38px; padding: 8px 14px; font-size: 12px; }
body.research-ui .btn-secondary, body.research-ui .btn-outline { background: #fff; color: var(--brand); border-color: var(--line-2); }
body.research-ui .btn-secondary:hover, body.research-ui .btn-outline:hover { background: var(--panel-2); border-color: #99afce; }
body.research-ui .btn-danger { color: #b91c1c; background: #fff; border-color: #f0c9c9; }
body.research-ui .join-arrow { margin-left: 10px; }
body.research-ui .nav-menu-panel { border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-lg); background: #fff; padding: 8px; }
body.research-ui .nav-menu-panel a, body.research-ui .nav-menu-panel .linklike { border-radius: 6px; font-size: 13px; }
body.research-ui .nav-menu-panel a:hover { background: var(--panel-2); }
body.research-ui h1, body.research-ui h2, body.research-ui h3 { color: var(--ink); letter-spacing: -.035em; }
body.research-ui input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]), body.research-ui textarea, body.research-ui select { color: var(--ink); background-color: #fff; border-color: var(--line-2); border-radius: 7px; box-shadow: none; }
body.research-ui .footer { margin-top: 70px; padding: 28px 0; background: transparent; border-top: 1px solid var(--line); color: var(--muted); }
body.research-ui .footer .container { display: flex; align-items: center; gap: 24px; }
body.research-ui .research-footer-brand { display: inline-flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 700; color: var(--brand); }
body.research-ui .footer-logo { width: 28px; height: 28px; margin: 0; }
body.research-ui .footer p { margin: 0; font-size: 12px; flex: 1; }
body.research-ui .footer .container > a:last-child { font-size: 12px; }
/* Homepage composition: wide editorial opening, then a precise library. */
body.research-ui.body-feed .page { display: block; max-width: var(--wide); padding: 0 40px; margin: 0 auto; }
body.research-ui.body-feed .main { padding-top: 0; }
body.research-ui.body-feed .main > .container { padding: 0; }
body.research-ui .research-hero { display: grid; grid-template-columns: 1.17fr 1fr; gap: 64px; padding: 58px 0 56px; align-items: center; }
body.research-ui .research-eyebrow { margin: 0 0 23px; font: 500 10px/1.5 var(--mono); letter-spacing: 1.6px; color: var(--brand); display: flex; align-items: center; gap: 9px; }
body.research-ui .research-status-dot { width: 6px; height: 6px; background: #6378d8; box-shadow: 0 0 0 4px #e6ebfb; border-radius: 50%; }
body.research-ui .research-hero h1 { font: 550 clamp(42px,4.2vw,65px)/1.075 var(--sans); letter-spacing: -3.2px; margin: 0; }
body.research-ui .research-hero h1 em { font-family: var(--serif); font-weight: 450; color: var(--brand); letter-spacing: -2.2px; }
body.research-ui .research-intro { max-width: 490px; margin: 24px 0 26px; color: var(--muted); font-size: 15px; line-height: 1.85; }
body.research-ui .research-intro strong { font-weight: 600; color: var(--ink); }
body.research-ui .feed-search { display: flex; width: 100%; gap: 12px; padding: 6px 6px 6px 16px; border-radius: 10px; border: 1px solid #c8d5e8; background: #fff; box-shadow: 0 5px 18px #23395d06; }
body.research-ui .feed-search:focus-within { border-color: #7d9ece; box-shadow: 0 0 0 3px #2563eb0d; }
body.research-ui .research-search-icon { width: 19px; height: 19px; stroke: var(--brand); fill: none; stroke-width: 1.5; flex: none; }
body.research-ui .feed-search input[type=search] { min-width: 0; flex: 1; border: 0; padding: 10px 0; font: 13px/1.4 var(--sans); outline: 0; box-shadow: none; }
body.research-ui .feed-search button { border-radius: 6px; width: auto; height: 42px; padding: 0 18px; display: flex; justify-content: center; gap: 18px; font: 550 12px var(--sans); background: var(--brand); color: #fff; box-shadow: none; }
body.research-ui .feed-search button:hover { background: var(--brand-h); }
body.research-ui .research-suggestions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 14px; font-size: 10px; }
body.research-ui .research-suggestions > span { font: 9px var(--mono); letter-spacing: .6px; color: var(--muted); }
body.research-ui .research-suggestions a { color: var(--ink-2); border-bottom: 1px solid #cfd9e8; padding-bottom: 2px; }
body.research-ui .research-suggestions a:hover { color: var(--brand-2); }
body.research-ui .research-model { min-width: 0; background: #142744; color: #e9f0ff; border-radius: 14px; position: relative; overflow: hidden; box-shadow: 0 14px 34px -20px #0c457852; }
body.research-ui .research-model-head { display: flex; justify-content: space-between; align-items: center; padding: 22px 24px 0; gap: 12px; font: 8px var(--mono); letter-spacing: 1px; color: #b0c4e4; }
body.research-ui .research-model-head > span:first-child { display: flex; align-items: center; gap: 8px; }
body.research-ui .research-model-head i { width: 5px; height: 5px; background: #8bafff; border-radius: 50%; }
body.research-ui .research-plot { display: block; width: 100%; height: auto; padding: 8px 14px 0; }
body.research-ui .plot-label { fill: #cddcff; font: italic 20px var(--serif); }
body.research-ui .plot-effect { fill: #e5ecff; font: italic 25px var(--serif); }
body.research-ui .plot-tick { fill: #a8bada; font: 8px var(--mono); letter-spacing: 1px; }
body.research-ui .research-equation { display: flex; align-items: center; justify-content: space-between; padding: 0 27px 20px; gap: 12px; }
body.research-ui .research-equation > span:first-child { font: italic 21px var(--serif); letter-spacing: .5px; color: #d9e5ff; }
body.research-ui .research-equation > span:last-child { color: #95abcd; font: 7px var(--mono); letter-spacing: 1px; }
body.research-ui .research-model-foot { display: flex; align-items: center; gap: 17px; padding: 17px 25px; border-top: 1px solid #ffffff14; background: #102139; }
body.research-ui .research-dag { display: flex; align-items: center; gap: 7px; }
body.research-ui .research-dag span { display: grid; place-items: center; width: 27px; height: 27px; border-radius: 50%; border: 1px solid #7993c25e; color: #ccd9f8; font: italic 15px var(--serif); }
body.research-ui .research-dag b { font-size: 13px; color: #7293c3; font-weight: 400; }
body.research-ui .research-model-foot > span { font-size: 9px; line-height: 1.6; color: #a7bad9; }
body.research-ui .research-model-foot small { margin-left: auto; font: 6px var(--mono); letter-spacing: 1px; color: #94a9c9; }
body.research-ui .research-library-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line-2); padding: 30px 0 25px; }
body.research-ui .research-library-heading .research-eyebrow { font-size: 9px; margin-bottom: 8px; color: var(--muted); }
body.research-ui .research-library-heading h2 { font: 550 27px/1.2 var(--sans); letter-spacing: -1px; margin: 0; }
body.research-ui .research-title-dot { color: #6378d8; }
body.research-ui .research-library-heading > p { margin: 0 0 3px; color: var(--muted); font: 10px var(--mono); }
body.research-ui .research-library-heading > p > span:not(.research-stat-divider) { color: var(--brand); font-weight: 600; }
body.research-ui .research-stat-divider { margin: 0 13px; color: #b6c4d8; }
body.research-ui .research-library { display: grid; grid-template-columns: 212px minmax(0,1fr); gap: 30px; align-items: start; }
body.research-ui .research-results { min-width: 0; }
/* Method index */
body.research-ui .feed-rail { width: auto; position: sticky; top: 112px; margin: 0; padding: 0 17px 20px 0; max-height: calc(100dvh - 142px); background: none; border: none; border-right: 1px solid var(--line); border-radius: 0; box-shadow: none; backdrop-filter: none; transition: none; }
body.research-ui .feed-rail-head { display: flex; gap: 10px; margin: 0; padding: 14px 0 22px; font: 10px/1.5 var(--mono); letter-spacing: .6px; color: var(--muted); border: 0; background: none; }
body.research-ui .feed-rail-hint { display: none; }
body.research-ui .feed-rail-cats { display: flex; flex-direction: column; gap: 4px; margin: 0; padding: 0; overflow: auto; border-radius: 0; }
body.research-ui .feed-rail-row { display: flex; }
body.research-ui .feed-rail-cat { display: flex; gap: 9px; align-items: center; padding: 11px 9px; min-height: 40px; font: 450 12px/1.4 var(--sans); color: var(--ink-2); border: 0; border-radius: 6px; width: 100%; background: none; letter-spacing: 0; }
body.research-ui .feed-rail-cat-name { white-space: normal; }
body.research-ui .feed-rail-cat-count { display: block; font-size: 9px; color: #8190a7; }
body.research-ui .feed-rail-cat:hover { background: #ebf0f8; }
body.research-ui .feed-rail-cat.active { background: #e6edf9; color: var(--brand); font-weight: 600; animation: none; }
body.research-ui .feed-rail-cat.active::before { display: none; }
body.research-ui .feed-rail-cat.is-all.active { background: #e6edf9; }
body.research-ui .feed-rail-dot { width: 4px; height: 4px; border-radius: 1px; box-shadow: none; background: #a3b0c4; }
body.research-ui .feed-rail-cat.active .feed-rail-dot { background: var(--brand-2); }
body.research-ui .feed-rail-toggle { width: 28px; min-height: 40px; margin: 0; font-size: 11px; background: transparent; }
body.research-ui .feed-rail-subs { display: flex; flex-direction: column; gap: 2px; margin: 4px 0 8px 12px; padding: 0 0 0 8px; border-left: 1px solid #cbd7eb; }
body.research-ui .feed-rail-sub { display: flex; align-items: center; min-height: 36px; padding: 6px; font: 11px/1.5 var(--sans); text-align: left; gap: 7px; border-radius: 4px; }
body.research-ui .feed-rail-sub-name { white-space: normal; }
body.research-ui .feed-rail-sub-tick { width: 4px; height: 4px; border: 0; background: #c0cce0; border-radius: 50%; }
body.research-ui .feed-rail-sub.active { background: #e9effb; color: var(--brand); }
body.research-ui .feed-rail-group.is-empty { opacity: .65; }
body.research-ui .feed-filterbar { min-height: 48px; padding: 0 0 14px; margin: 0; border-bottom: 1px solid var(--line); gap: 16px; background: transparent; position: static; }
body.research-ui .research-filter-left { display: flex; align-items: center; gap: 10px; min-width: 0; }
body.research-ui .research-field-toggle { display: none; }
body.research-ui .feed-selected { min-width: 0; margin: 0; }
body.research-ui .feed-sel-all { background: none; border: none; border-radius: 4px; color: var(--ink-2); font: 500 12px var(--sans); padding: 7px 0; cursor: pointer; }
body.research-ui .feed-sel-chip { font: 500 11px var(--sans); border: 1px solid #c9d8ef; border-radius: 5px; padding: 7px 8px; background: #edf3fd; max-width: 100%; }
body.research-ui .feed-sort { display: flex; gap: 2px; padding: 3px; border-radius: 6px; background: #eaf0f8; border: 1px solid #e1e8f3; }
body.research-ui .feed-sort a { font: 500 11px var(--sans); letter-spacing: 0; text-transform: none; border: none; padding: 6px 13px; background: transparent; color: var(--muted); border-radius: 4px; }
body.research-ui .feed-sort a.active { color: var(--brand); background: #fff; box-shadow: 0 1px 3px #14213d0a; }
/* Cards use one DOM order on every screen: reading, sorting and focus agree. */
body.research-ui .feed-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; margin: 22px 0 0; align-items: stretch; }
body.research-ui .feed-grid .feed-card { position: relative; width: auto; max-width: none; min-width: 0; border-radius: 10px; background: #fff; border: 1px solid var(--line); box-shadow: 0 2px 3px #14213d02; animation: none; opacity: 1; transform: none; transition: border-color .2s, box-shadow .2s; overflow: hidden; }
body.research-ui .feed-grid .feed-card:hover { border-color: #9cb4d8; box-shadow: 0 10px 25px -16px #0c45783b; transform: none; }
body.research-ui .feed-grid .feed-card:focus-within { border-color: #7296ce; }
body.research-ui .feed-card.is-out { display: none !important; }
body.research-ui .feed-topbar { display: flex; gap: 8px; padding: 12px 14px; mask-image: none; -webkit-mask-image: none; min-height: 40px; }
body.research-ui .research-card-index { font: 9px var(--mono); color: #9caac0; padding-right: 8px; border-right: 1px solid var(--line); }
body.research-ui .feed-src { font: 500 10px var(--mono); color: var(--brand); border: none; margin: 0; padding: 0; max-width: 45%; overflow: hidden; text-overflow: ellipsis; }
body.research-ui .feed-tag-chip { font: 9px var(--mono); background: #f1f4fa; color: #71809a; border: none; box-shadow: none; padding: 3px 6px; border-radius: 3px; margin-left: auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
body.research-ui .feed-cover { margin: 0 10px; width: calc(100% - 20px); border: 1px solid #e9eef6; border-radius: 5px; background: #fbfcff; box-shadow: none; padding-bottom: 23px; }
body.research-ui .feed-slide { aspect-ratio: auto; height: 160px; background: #fff; }
body.research-ui .feed-slide img { padding: 9px; object-fit: contain; height: 100%; width: 100%; transform: none; }
body.research-ui .feed-card:hover .feed-slide img { transform: none; }
body.research-ui .research-figure-label { position: absolute; bottom: 6px; left: 9px; pointer-events: none; font: 7px var(--mono); letter-spacing: .8px; color: #7e8da6; }
body.research-ui .feed-car-dots { bottom: 10px; left: auto; right: 10px; gap: 4px; }
body.research-ui .feed-car-dot { width: 3px; height: 3px; background: #c8d4e7; box-shadow: none; }
body.research-ui .feed-car-dot.is-active { background: #537cc5; }
body.research-ui .feed-car-arrow { width: 25px; height: 25px; border-radius: 5px; color: var(--brand); background: #ffffffed; border: 1px solid #cfdaeb; top: calc(50% - 10px); backdrop-filter: none; }
body.research-ui .feed-car-arrow:focus-visible, body.research-ui .feed-cover:focus-within .feed-car-arrow { opacity: 1; }
body.research-ui .feed-car-arrow:hover { background: #eaf1fd; }
body.research-ui .feed-cover-snap { height: 160px; min-height: 0; background: linear-gradient(135deg,#f1f5fe,#f8f9ff); padding: 16px; gap: 12px; }
body.research-ui .feed-snap-kicker { color: #738bb7; font-size: 8px; }
body.research-ui .feed-snap-summary { font: 13px/1.55 var(--serif); display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
body.research-ui .feed-card-body { padding: 18px 17px 16px; }
body.research-ui .feed-card-title { display: -webkit-box; -webkit-line-clamp: 3; font: 580 17px/1.4 var(--sans); letter-spacing: -.5px; margin: 0 0 10px; color: var(--ink); min-height: 47px; }
body.research-ui .feed-card-title a { color: inherit; }
body.research-ui .feed-card-summary { display: -webkit-box; -webkit-line-clamp: 2; font: 12px/1.75 var(--sans); color: var(--muted); margin: 0; }
body.research-ui .feed-card-foot { padding: 12px 14px; gap: 6px; border-top: 1px solid #edf1f7; margin: 0 3px; font-size: 10px; }
body.research-ui .feed-author { min-width: 0; gap: 5px; font: 9px var(--mono); color: #63748f; overflow: hidden; }
body.research-ui .feed-author > span:not(.feed-badges) { max-width: 90px; overflow: hidden; text-overflow: ellipsis; }
body.research-ui .feed-author .avatar { width: 19px; height: 19px; font-size: 8px; flex: none; }
body.research-ui .feed-badges { gap: 2px; }
body.research-ui .feed-badge { width: 11px; height: 11px; font-size: 6px; }
body.research-ui .feed-stats { font: 9px var(--mono); gap: 7px; color: #73809b; }
body.research-ui .feed-stats-star { color: #7991be; }
body.research-ui .research-load-more { display: flex; align-items: center; flex-direction: column; gap: 16px; padding: 34px 0 10px; color: var(--muted); font: 10px var(--mono); }
body.research-ui .research-load-more .btn { min-width: 240px; gap: 25px; font-size: 12px; }
body.research-ui .research-empty, body.research-ui .feed-empty { grid-column: 1/-1; padding: 50px 20px; border: 1px dashed var(--line-2); border-radius: 10px; background: #fff; text-align: center; margin-top: 20px; color: var(--muted); }
body.research-ui .research-empty > span { display: block; color: #7791bd; font: 48px var(--serif); }
body.research-ui .research-empty h3 { font: 500 20px var(--sans); }
body.research-ui .research-empty p { font-size: 13px; }
body.research-ui .research-empty > a { display: block; margin-top: 16px; font-size: 12px; }
/* The assistant is an intentional tool, with no pulsing advertisement. */
body.research-ui .sc-fab { background: #142744; color: #fff; border: 1px solid #456287; box-shadow: 0 8px 22px #14213d26; border-radius: 14px; animation: none; }
body.research-ui .sc-fab::before, body.research-ui .sc-fab::after { display: none; }
body.research-ui .sc-fab-icon { width: 37px; height: 37px; }
body.research-ui .sc-w { color: inherit; }
body.research-ui .sc-panel { background: #fff; border: 1px solid var(--line-2); border-radius: 14px; box-shadow: var(--shadow-lg); }
body.research-ui .sc-panel-head { background: #f0f4fc; border-bottom: 1px solid var(--line); }
body.research-ui .sc-send { background: var(--brand); border-radius: 7px; }
body.research-ui .sc-msg { border-radius: 9px; box-shadow: none; }
body.research-ui .sc-msg-user { background: #edf3ff; color: var(--ink); }
@media (max-width: 1200px) {
  body.research-ui .research-hero { gap: 34px; }
  body.research-ui .research-hero h1 { font-size: 49px; letter-spacing: -2.4px; }
  body.research-ui .research-library { grid-template-columns: 190px minmax(0,1fr); gap: 24px; }
  body.research-ui .feed-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  body.research-ui .research-nav { margin-left: 0; gap: 20px; }
  body.research-ui .research-suggestions { gap: 10px; }
  body.research-ui .research-model-foot small { display: none; }
}
@media (max-width: 1020px) {
  body.research-ui .container, body.research-ui.body-feed .page { padding-left: 28px; padding-right: 28px; }
  body.research-ui .topbar-inner { gap: 24px; }
  body.research-ui .brand-tag { display: none; }
  body.research-ui .research-hero { gap: 25px; padding: 42px 0; }
  body.research-ui .research-hero h1 { font-size: 43px; }
  body.research-ui .research-eyebrow { font-size: 8px; letter-spacing: 1px; }
  body.research-ui .research-intro { font-size: 13px; margin: 19px 0; }
  body.research-ui .research-equation > span:last-child { display: none; }
  body.research-ui .research-model-head { padding: 20px 18px 0; font-size: 6px; }
  body.research-ui .research-library { display: block; }
  body.research-ui .research-field-toggle { display: inline-flex; align-items: center; justify-content: center; gap: 7px; border: 1px solid var(--line-2); background: #fff; color: var(--brand); border-radius: 6px; padding: 9px 12px; font: 500 11px var(--sans); min-height: 38px; }
  body.research-ui .research-field-toggle svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.4; }
  body.research-ui .feed-rail { display: none; position: fixed; z-index: 160; top: 14px; bottom: 14px; left: 14px; width: min(340px,calc(100vw - 28px)); max-height: none; margin: 0; padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: #f6f8fc; box-shadow: 0 20px 80px #0b244e40; }
  html.is-rail-open body.research-ui .feed-rail { display: flex; }
  html.is-rail-open { overflow: hidden; }
  body.research-ui .feed-rail-head { display: flex; padding: 0 0 16px; margin-bottom: 8px; border-bottom: 1px solid var(--line); font-size: 11px; }
  body.research-ui .feed-rail-close { display: grid !important; place-items: center; width: 36px; height: 36px; flex: none; border: 1px solid var(--line-2); border-radius: 7px; background: #fff; color: var(--brand); font-size: 23px; cursor: pointer; }
  body.research-ui .feed-rail-cats { margin: 0; padding: 0; overflow-x: hidden; overflow-y: auto; }
  body.research-ui .feed-rail-cat { min-height: 46px; font-size: 14px; padding: 12px; }
  body.research-ui .feed-rail-cat-count { font-size: 11px; }
  body.research-ui .feed-rail-toggle { width: 40px; min-height: 46px; }
  body.research-ui .feed-rail-sub { min-height: 42px; font-size: 12px; }
  body.research-ui .feed-rail-scrim { display: block; position: fixed; inset: 0; z-index: 150; background: #0c244963; backdrop-filter: blur(3px); }
  body.research-ui .feed-grid { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
  body.research-ui .feed-filterbar { position: sticky; top: 88px; z-index: 20; background: var(--bg); padding-top: 12px; }
  body.research-ui .feed-slide, body.research-ui .feed-cover-snap { height: 145px; }
}
@media (max-width: 820px) {
  body.research-ui .research-nav { display: none; }
  body.research-ui .research-hero { grid-template-columns: 1fr; padding: 34px 0 32px; }
  body.research-ui .research-hero-copy { max-width: none; }
  body.research-ui .research-hero h1 { font-size: 58px; }
  body.research-ui .research-intro { max-width: 490px; font-size: 14px; }
  body.research-ui .research-model { display: none; }
  body.research-ui .research-eyebrow { font-size: 9px; }
  body.research-ui .feed-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  body.research-ui .feed-slide, body.research-ui .feed-cover-snap { height: 180px; }
  body.research-ui .footer .container { flex-wrap: wrap; gap: 12px; }
  body.research-ui .footer p { flex-basis: 70%; }
}
@media (max-width: 560px) {
  body.research-ui { font-size: 14px; }
  body.research-ui .container, body.research-ui.body-feed .page { padding-left: 20px; padding-right: 20px; }
  body.research-ui .topbar, body.research-ui .topbar-inner { height: 68px; }
  body.research-ui .topbar-inner { gap: 12px; }
  body.research-ui .brand { gap: 6px; }
  body.research-ui .brand-mark, body.research-ui .brand-mark:has(.brand-logo-img) { width: 32px; height: 38px; }
  body.research-ui .brand-name { font-size: 20px; letter-spacing: -.8px; }
  body.research-ui .nav-right { gap: 14px; font-size: 11px; }
  body.research-ui .nav-right .btn { min-height: 34px; padding: 7px 12px; font-size: 0; }
  body.research-ui .nav-right .btn::before { content: 'Join'; font: 550 11px var(--sans); }
  body.research-ui .nav-right .btn-post { font-size: 11px; }
  body.research-ui .nav-right .btn-post::before { content: none; }
  body.research-ui .join-arrow { display: none; }
  body.research-ui .nav-menu-name, body.research-ui .nav-menu-caret { display: none; }
  body.research-ui .research-hero { padding: 32px 0 30px; gap: 0; }
  body.research-ui .research-eyebrow { font-size: 8px; letter-spacing: .8px; margin-bottom: 22px; }
  body.research-ui .research-hero h1 { font-size: clamp(36px,10.4vw,49px); letter-spacing: -1.9px; line-height: 1.12; }
  body.research-ui .research-hero h1 em { letter-spacing: -1.4px; }
  body.research-ui .research-intro { font-size: 12px; line-height: 1.85; max-width: 335px; margin: 18px 0 22px; }
  body.research-ui .feed-search { gap: 9px; padding: 5px 5px 5px 13px; border-radius: 8px; }
  body.research-ui .feed-search input[type=search] { font-size: 16px; letter-spacing: -.3px; padding: 10px 0; }
  body.research-ui .feed-search input::placeholder { font-size: 11px; letter-spacing: 0; }
  body.research-ui .feed-search button { width: 42px; height: 42px; padding: 0; font-size: 19px; border-radius: 5px; }
  body.research-ui .feed-search-label { display: none; }
  body.research-ui .research-suggestions { gap: 10px; font-size: 9px; margin-top: 13px; }
  body.research-ui .research-suggestions > span { display: none; }
  body.research-ui .research-library-heading { padding: 24px 0 12px; align-items: flex-start; flex-direction: column; gap: 10px; }
  body.research-ui .research-library-heading .research-eyebrow { font-size: 7px; margin-bottom: 6px; letter-spacing: 1.2px; }
  body.research-ui .research-library-heading h2 { font-size: 23px; letter-spacing: -.8px; }
  body.research-ui .research-library-heading > p { font-size: 9px; margin: 0; }
  body.research-ui .feed-filterbar { top: 68px; padding: 12px 0; gap: 8px; }
  body.research-ui .research-filter-left { gap: 6px; }
  body.research-ui .research-field-toggle { min-height: 36px; padding: 8px 10px; font-size: 11px; }
  body.research-ui .feed-sel-all { font-size: 10px; }
  body.research-ui .feed-sel-chip { max-width: 123px; font-size: 10px; padding: 7px 5px; line-height: 1.3; }
  body.research-ui .feed-sort a { padding: 7px 9px; font-size: 10px; }
  body.research-ui .feed-grid { grid-template-columns: minmax(0,1fr); gap: 18px; margin-top: 18px; }
  body.research-ui .feed-grid .feed-card { border-radius: 10px; }
  body.research-ui .feed-topbar { padding: 14px 17px; }
  body.research-ui .feed-src { font-size: 11px; }
  body.research-ui .feed-tag-chip { font-size: 9px; }
  body.research-ui .feed-cover { margin: 0 12px; width: calc(100% - 24px); }
  body.research-ui .feed-slide, body.research-ui .feed-cover-snap { height: 182px; }
  body.research-ui .feed-car-arrow { display: grid; opacity: 1; width: 28px; height: 32px; }
  body.research-ui .feed-slide img { padding: 12px; }
  body.research-ui .research-figure-label { font-size: 8px; }
  body.research-ui .feed-card-body { padding: 20px 20px 18px; }
  body.research-ui .feed-card-title { min-height: 0; font-size: 20px; line-height: 1.35; letter-spacing: -.65px; -webkit-line-clamp: 4; }
  body.research-ui .feed-card-summary { font-size: 12px; -webkit-line-clamp: 3; }
  body.research-ui .feed-card-foot { padding: 13px 18px; }
  body.research-ui .feed-author, body.research-ui .feed-stats { font-size: 10px; }
  body.research-ui .feed-author > span:not(.feed-badges) { max-width: 120px; }
  body.research-ui .feed-badge { width: 12px; height: 12px; font-size: 7px; }
  body.research-ui .footer { margin-top: 40px; padding: 25px 0; }
  body.research-ui .footer .container { flex-direction: column; align-items: flex-start; gap: 13px; }
  body.research-ui .footer p { font-size: 10px; }
  body.research-ui .footer .container > a:last-child { font-size: 11px; }
  body.research-ui .sc-fab { bottom: 18px; right: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  body.research-ui *, body.research-ui *::before, body.research-ui *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
/* Gallery pagination has actual keyboard/touch targets, not decorative dots. */
body.research-ui .feed-car-dots { pointer-events: auto; gap: 0; bottom: 1px; right: 5px; }
body.research-ui .feed-car-dot { display: grid; place-items: center; width: 20px; height: 22px; padding: 0; border: 0; background: transparent; box-shadow: none; cursor: pointer; border-radius: 3px; transform: none; }
body.research-ui .feed-car-dot::after { content: ''; width: 4px; height: 4px; border-radius: 50%; background: #b6c7e1; }
body.research-ui .feed-car-dot.is-active { background: transparent; transform: none; }
body.research-ui .feed-car-dot.is-active::after { background: #4272bf; }
body.research-ui .feed-car-arrow:disabled { opacity: .3; cursor: default; }
body.research-ui .join-short { display: none; }
@media (max-width: 1020px) {
  body.research-ui .feed-rail-scrim { top: 0 !important; }
  body.research-ui .feed-rail { height: calc(100dvh - 28px); }
}
@media (max-width: 560px) {
  body.research-ui .nav-right .btn::before { content: none; }
  body.research-ui .join-full { display: none; }
  body.research-ui .join-short { display: inline; font-size: 11px; }
}
/* The account menu is a native disclosure, including on touch screens. */
body.research-ui .nav-menu-trigger { list-style: none; cursor: pointer; border-radius: 7px; min-height: 40px; }
body.research-ui .nav-menu-trigger::-webkit-details-marker { display: none; }
body.research-ui .nav-menu:not([open]) .nav-menu-panel { display: none; }
body.research-ui .nav-menu[open] .nav-menu-panel { display: block; }
body.research-ui .nav-menu[open] .nav-menu-trigger { background: #eaf0f8; }
body.research-ui .nav-menu-name { max-width: 190px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
body.research-ui button:disabled { cursor: not-allowed; opacity: .5; }
@media (max-width: 560px) {
  body.research-ui .feed-car-arrow { width: 36px; height: 40px; }
  body.research-ui .feed-car-dot { width: 24px; height: 24px; }
}
/* A compact mathematical signature replaces the wide model on small screens. */
body.research-ui .research-pocket-model { display: none; }
@media (max-width: 820px) {
  body.research-ui .research-pocket-model { display: flex; align-items: center; gap: 14px; margin: 20px 0 0; padding: 9px 0; border-top: 1px solid #e0e7f3; border-bottom: 1px solid #e0e7f3; max-width: 490px; color: #6b7fac; }
  body.research-ui .research-pocket-model svg { width: 63px; height: 24px; fill: none; stroke: #6c82c8; stroke-width: 1; flex: none; }
  body.research-ui .research-pocket-model .pocket-axis { stroke: #bcc8e2; stroke-dasharray: 2 3; }
  body.research-ui .research-pocket-model > span { font: italic 17px var(--serif); color: var(--brand); white-space: nowrap; }
  body.research-ui .research-pocket-model small { font: 6px/1.6 var(--mono); letter-spacing: .8px; margin-left: auto; }
}