/* Robotics Research Landscape (/research/). Uses the site's colour tokens so it follows light/dark mode. */
.rs { --rs-radius: 12px; }
.rs-kicker { margin: 0 0 6px; font: 700 12.5px var(--font); letter-spacing: .14em; text-transform: uppercase; color: var(--cobalt); }
.rs .sub { max-width: 72ch; }
.rs-h2 { margin: 36px 0 8px !important; font-size: 26px !important; }
.rs-h3 { margin: 22px 0 6px; font: 700 17px var(--font); color: var(--ink); }
.rs-note { margin: 0 0 12px; font-size: 13.5px; color: var(--ink-3); max-width: 80ch; line-height: 1.5; }
.rs-lead { font-size: 18px; line-height: 1.5; color: var(--ink); max-width: 75ch; }
.rs-loading, .rs-empty { color: var(--ink-3); font-size: 14px; margin: 8px 0; }
.rs-error { padding: 14px 16px; border: 1px solid var(--orange); background: var(--orange-2); border-radius: 10px; color: var(--ink); }
.rs-input { font: 15px var(--font); color: var(--ink); background: var(--panel); border: 1px solid var(--rule); border-radius: 8px; padding: 10px 12px; min-height: 44px; min-width: 0; width: 100%; }
.rs-input:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 1px; }
.rs-search { margin: 18px 0 8px; max-width: 760px; }
.rs-search .rs-input { font-size: 17px; min-height: 52px; padding-left: 16px; border-radius: 12px; }

/* search results */
.rs-results { margin: 12px 0 24px; padding: 16px 18px; background: var(--panel); border: 1px solid var(--rule); border-radius: var(--rs-radius); }
.rs-count { margin: 0 0 8px; font-size: 14px; color: var(--ink-2); }
.rs-group { margin: 14px 0 0; } .rs-group h3 { margin: 0 0 6px; font: 700 12px var(--font); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }
.rs-group ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.rs-group li a { display: block; padding: 8px 10px; border-radius: 8px; text-decoration: none; color: var(--ink); font-weight: 600; } .rs-group li a:hover { background: var(--cobalt-2); }
.rs-res-sub { display: block; font-weight: 400; font-size: 13px; color: var(--ink-3); overflow-wrap: anywhere; }
.rs-more { margin: 4px 10px 0; font-size: 12.5px; color: var(--ink-3); }

/* landscape: area cards */
.rs-areas { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.rs-area { display: flex; flex-direction: column; gap: 10px; padding: 18px; background: var(--panel); border: 1px solid var(--rule); border-radius: var(--rs-radius); text-decoration: none; color: var(--ink); transition: border-color .15s, transform .15s, box-shadow .15s; min-width: 0; }
.rs-area:hover { border-color: var(--cobalt); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(19, 32, 58, .10); }
.rs-area-head { display: flex; align-items: center; gap: 10px; } .rs-area-head h3 { margin: 0; font: 800 19px/1.2 var(--font); font-stretch: 90%; }
.rs-ico { width: 28px; height: 28px; flex: none; fill: none; stroke: var(--cobalt); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; padding: 4px; background: var(--cobalt-2); border-radius: 8px; box-sizing: content-box; width: 20px; height: 20px; }
.rs-area-tag { margin: 0; color: var(--ink-2); font-size: 14.5px; line-height: 1.45; }
.rs-arc { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 0; font-size: 11.5px; }
.rs-arc li { color: var(--ink-2); background: var(--paper); border: 1px solid var(--rule); border-radius: 999px; padding: 3px 9px; margin-right: 14px; position: relative; }
.rs-arc li:not(:last-child)::after { content: '→'; position: absolute; right: -13px; top: 50%; transform: translateY(-52%); color: var(--cobalt); font-size: 12px; }
.rs-arc-big { font-size: 13px; margin: 16px 0; gap: 8px 0; } .rs-arc-big li { padding: 6px 12px; margin-right: 20px; } .rs-arc-big li:not(:last-child)::after { right: -19px; }
.rs-area-meta { margin: auto 0 0; font-size: 12.5px; color: var(--ink-3); }
.rs-area-cta { font-weight: 700; font-size: 14px; color: var(--cobalt); }
.rs-radar-over { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.rs-radar-col { background: var(--panel); border: 1px solid var(--rule); border-radius: var(--rs-radius); padding: 14px 16px; } .rs-radar-col h3 { margin: 0 0 8px; font-size: 16px; }
.rs-radar-col ul { margin: 0; padding-left: 18px; display: grid; gap: 6px; font-size: 14.5px; } .rs-radar-col a { color: var(--ink); font-weight: 600; } .rs-radar-field { color: var(--ink-3); font-size: 13px; }

/* shared card bits */
.rs-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; } .rs-cards-sm { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.rs-mini, .rs-paper, .rs-person, .rs-lab, .rs-proj, .rs-ds { display: flex; flex-direction: column; gap: 8px; padding: 14px 16px; background: var(--panel); border: 1px solid var(--rule); border-radius: var(--rs-radius); min-width: 0; }
.rs-mini h4, .rs-paper-title, .rs-person h4, .rs-lab h4, .rs-proj h4, .rs-ds h4 { margin: 0; font: 700 16px/1.3 var(--font); color: var(--ink); overflow-wrap: anywhere; }
.rs-paper:target { border-color: var(--cobalt); box-shadow: 0 0 0 3px var(--cobalt-2); }
.rs-paper-top { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; } .rs-year { margin-left: auto; font: 12px var(--mono); color: var(--ink-3); }
.rs-badge { font: 700 10.5px/1 var(--font); letter-spacing: .04em; text-transform: uppercase; padding: 4px 7px; border-radius: 6px; }
.rs-type { background: var(--cobalt-2); color: var(--cobalt); } .rs-curated { background: var(--green-2); color: var(--green); } .rs-approved { background: var(--green-2); color: var(--green); }
.rs-auto { background: var(--orange-2); color: var(--orange); } .rs-verified { border: 1px solid var(--green); color: var(--green); background: transparent; }
.rs-authors { margin: 0; font-size: 13px; color: var(--ink-3); overflow-wrap: anywhere; }
.rs-sum { margin: 0; font-size: 14.5px; line-height: 1.5; color: var(--ink-2); }
.rs-why { margin: 0; font-size: 13.5px; color: var(--ink-2); padding: 8px 10px; border-left: 3px solid var(--cobalt); background: var(--cobalt-2); border-radius: 0 8px 8px 0; } .rs-why b { color: var(--ink); }
.rs-trend, .rs-meta { margin: 0; font-size: 12.5px; color: var(--ink-3); } .rs-label { margin: 4px 0 0; font: 700 11.5px var(--font); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }
.rs-tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; } .rs-tag { font: 500 11.5px var(--mono); border: 1px solid var(--rule); color: var(--ink-2); border-radius: 999px; padding: 4px 8px; }
.rs-links { display: flex; flex-wrap: wrap; gap: 4px 14px; margin-top: auto; }
.rs-link { display: inline-flex; align-items: center; min-height: 36px; font-weight: 700; font-size: 13.5px; color: var(--cobalt); text-decoration: none; } .rs-link:hover { text-decoration: underline; } .rs-code { color: var(--green); }
.rs-nolink { font-size: 12.5px; color: var(--ink-3); font-style: italic; }
.rs-chain { margin: 0; font-size: 12.5px; color: var(--ink-3); } .rs-chain a { color: var(--ink-2); }
.rs-rel { margin: 0; display: grid; gap: 2px; font-size: 12.5px; } .rs-rel-link { color: var(--ink-2); overflow-wrap: anywhere; }
.rs-matter { border: 1px solid var(--rule); border-radius: 8px; padding: 6px 10px; background: var(--paper); } .rs-matter summary { cursor: pointer; font-weight: 700; font-size: 13.5px; min-height: 36px; display: flex; align-items: center; }
.rs-matter dl, .rs-tl-dl { margin: 6px 0 4px; display: grid; gap: 6px; } .rs-matter dt, .rs-tl-dl dt { font: 700 11.5px var(--font); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); } .rs-matter dd, .rs-tl-dl dd { margin: 0; font-size: 14px; color: var(--ink-2); line-height: 1.5; }
.rs-bul { margin: 0; padding-left: 18px; font-size: 13.5px; color: var(--ink-2); display: grid; gap: 3px; } .rs-bul a { color: var(--ink-2); }
.rs-subs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; } .rs-subs li { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; background: var(--panel); border: 1px solid var(--rule); border-radius: 10px; font-size: 14px; } .rs-subs li span { font-size: 12px; color: var(--ink-3); } .rs-subs li:target { border-color: var(--cobalt); }

/* topic page */
.rs-jump { position: sticky; top: 0; z-index: 5; display: flex; gap: 4px 6px; flex-wrap: wrap; padding: 8px 0; margin: 14px 0 6px; background: var(--paper); border-bottom: 1px solid var(--rule); }
.rs-jump a { font-size: 13.5px; font-weight: 600; text-decoration: none; color: var(--ink-2); padding: 7px 11px; border-radius: 999px; min-height: 36px; display: inline-flex; align-items: center; } .rs-jump a:hover { background: var(--cobalt-2); color: var(--cobalt); }
.rs-sec { scroll-margin-top: 64px; } .rs-static p { max-width: 75ch; }
.rs-filters { display: grid; grid-template-columns: minmax(0, 2fr) repeat(4, minmax(0, 1fr)); gap: 10px; align-items: end; margin: 10px 0 14px; } .rs-fl { display: grid; gap: 4px; font-size: 12px; color: var(--ink-3); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.rs-pg { margin: 20px 0 8px; } .rs-more-btn { margin-top: 12px; min-height: 44px; }

/* timeline */
.rs-tl-wrap { overflow-x: auto; padding: 8px 2px 14px; margin: 12px 0; border: 1px solid var(--rule); border-radius: var(--rs-radius); background: var(--panel); }
.rs-tl { list-style: none; margin: 0; padding: 14px 16px; display: flex; gap: 0; min-width: min-content; }
.rs-era { flex: none; padding: 0 18px 0 0; margin-right: 18px; border-right: 2px dashed var(--rule); min-width: 190px; } .rs-era:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.rs-era-head { font: 800 15px var(--font); color: var(--cobalt); } .rs-era-range { font: 12px var(--mono); color: var(--ink-3); } .rs-era-blurb { margin: 4px 0 12px; font-size: 12.5px; color: var(--ink-3); max-width: 28ch; line-height: 1.4; }
.rs-ms { list-style: none; margin: 0; padding: 0 0 0 16px; border-left: 3px solid var(--cobalt-2); display: grid; gap: 6px; }
.rs-node { position: relative; display: grid; grid-template-columns: auto 1fr; column-gap: 8px; align-items: baseline; text-align: left; width: 100%; padding: 8px 10px; background: transparent; border: 1px solid transparent; border-radius: 8px; cursor: pointer; font: inherit; color: var(--ink); text-decoration: none; min-height: 44px; }
.rs-node:hover { background: var(--cobalt-2); } .rs-node[aria-pressed="true"] { background: var(--cobalt-2); border-color: var(--cobalt); }
.rs-node-dot { position: absolute; left: -23px; top: 50%; width: 11px; height: 11px; margin-top: -5px; border-radius: 50%; background: var(--panel); border: 3px solid var(--cobalt); box-sizing: content-box; width: 8px; height: 8px; }
.rs-node[aria-pressed="true"] .rs-node-dot { background: var(--cobalt); }
.rs-node-year { font: 700 12px var(--mono); color: var(--cobalt); } .rs-node-label { font-size: 14px; font-weight: 600; line-height: 1.3; }
.rs-era-now .rs-node-dot { border-color: var(--orange); } .rs-era-now .rs-node-year { color: var(--orange); } .rs-era-now .rs-ms { border-left-color: var(--orange-2); }
.rs-tl-detail { margin-top: 10px; } .rs-tl-card { padding: 18px 20px; background: var(--panel); border: 1px solid var(--cobalt); border-radius: var(--rs-radius); display: grid; gap: 8px; }
.rs-tl-card h3 { margin: 0; font: 800 22px/1.2 var(--font); } .rs-tl-year { margin: 0; font: 700 12.5px var(--mono); color: var(--cobalt); } .rs-tl-paper { margin: 0; font-weight: 700; font-size: 15.5px; }
.rs-tl-dl { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 20px; } .rs-tl-rel { margin: 4px 0 0; font-size: 14px; }
.rs-linkbtn { font: 700 13.5px var(--font); color: var(--cobalt); background: none; border: 0; padding: 8px 10px 8px 0; cursor: pointer; min-height: 36px; text-decoration: underline; }

/* reading path */
.rs-path { list-style: none; margin: 14px 0; padding: 0; display: grid; gap: 10px; counter-reset: st; }
.rs-step { display: grid; grid-template-columns: 38px minmax(0, 1fr); column-gap: 12px; padding: 12px 14px; background: var(--panel); border: 1px solid var(--rule); border-radius: 10px; }
.rs-step > * { grid-column: 2; } .rs-step-n { grid-column: 1; grid-row: 1 / span 5; width: 30px; height: 30px; border-radius: 50%; background: var(--cobalt); color: #fff; display: grid; place-items: center; font: 800 14px var(--font); }
.rs-step-level { font: 700 11px var(--font); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); } .rs-step-title { font-weight: 700; color: var(--ink); } .rs-step-meta { font-size: 12.5px; color: var(--ink-3); } .rs-step-note { font-size: 14px; color: var(--ink-2); } .rs-step-req { font-size: 12.5px; color: var(--orange); }

/* radar */
.rs-radar { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.rs-radar-col[data-status] { padding: 12px; } .rs-radar-col[data-status="trending"] { border-top: 4px solid var(--orange); } .rs-radar-col[data-status="emerging"] { border-top: 4px solid var(--cobalt); } .rs-radar-col[data-status="established"] { border-top: 4px solid var(--green); } .rs-radar-col[data-status="frontier"] { border-top: 4px solid #8A63D2; } .rs-radar-col[data-status="open"] { border-top: 4px solid var(--ink-3); }
.rs-radar-item { padding: 8px 0; border-top: 1px solid var(--rule); } .rs-radar-item:first-of-type { border-top: 0; } .rs-radar-item h4 { margin: 0 0 3px; font: 700 14px/1.3 var(--font); } .rs-radar-item p { margin: 0 0 4px; font-size: 13px; color: var(--ink-2); line-height: 1.45; }
.rs-activity { width: 100%; border-collapse: collapse; margin-top: 14px; font-size: 14px; } .rs-activity caption { text-align: left; font-size: 12.5px; color: var(--ink-3); padding-bottom: 8px; } .rs-activity th, .rs-activity td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--rule); } .rs-activity th { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); }

@media (max-width: 1100px) { .rs-areas, .rs-cards, .rs-cards-sm, .rs-subs { grid-template-columns: repeat(2, minmax(0, 1fr)); } .rs-radar { grid-template-columns: repeat(2, minmax(0, 1fr)); } .rs-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); } .rs-filters > :first-child { grid-column: 1 / -1; } }
@media (max-width: 720px) {
  .rs-areas, .rs-cards, .rs-cards-sm, .rs-subs, .rs-radar, .rs-radar-over, .rs-tl-dl { grid-template-columns: minmax(0, 1fr); }
  .rs-h2 { font-size: 22px !important; } .rs-jump { overflow-x: auto; flex-wrap: nowrap; } .rs-jump a { flex: none; }
  .rs-tl-wrap { overflow: visible; border: 0; background: transparent; padding: 0; } .rs-tl { flex-direction: column; padding: 8px 0; gap: 18px; } .rs-era { min-width: 0; border-right: 0; margin-right: 0; padding-right: 0; border-bottom: 1px dashed var(--rule); padding-bottom: 14px; } .rs-era:last-child { border-bottom: 0; } .rs-era-blurb { max-width: none; }
  .rs-filters { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) { .rs-area { transition: none; } .rs-area:hover { transform: none; } }
@media (max-width: 720px) { .rs-ms { margin-left: 10px; } }

/* top-20 survey */
.rs-emoji { font-size: 22px; line-height: 1; }
.rs-survey-link { font-weight: 700; color: var(--cobalt); }
.rs-table-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--rs-radius); background: var(--panel); }
.rs-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 720px; }
.rs-table th, .rs-table td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--rule); vertical-align: top; }
.rs-table th { font: 700 12px/1.2 var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--ink-3); background: var(--paper); }
.rs-table td a { color: var(--ink); font-weight: 700; text-decoration: none; } .rs-table td a:hover { color: var(--cobalt); text-decoration: underline; }
.rs-mat { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 700; border: 1px solid var(--rule); background: var(--paper); color: var(--ink-2); white-space: nowrap; }
.rs-mat-fastmoving { border-color: var(--orange); color: var(--orange-2); } .rs-mat-steady { border-color: var(--cobalt); color: var(--cobalt-2); }
.rs-survey-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.rs-survey-card { display: flex; flex-direction: column; gap: 9px; padding: 18px; background: var(--panel); border: 1px solid var(--rule); border-radius: var(--rs-radius); scroll-margin-top: 80px; }
.rs-survey-card h3 { margin: 0; font: 800 18px/1.25 var(--font); flex: 1; } .rs-survey-card p { margin: 0; font-size: 14.5px; line-height: 1.5; color: var(--ink-2); }
.rs-survey-row { font-size: 13.5px; }
@media (max-width: 860px) { .rs-survey-list { grid-template-columns: minmax(0, 1fr); } }