/* One stylesheet for every page.
   Orange marks scores (the thing being explained). Blue marks the comparison. Everything else is warm ink on white. Light only.
   Soft corners, no gradients, no decorative shadows. */
:root {
  color-scheme: light;
  --bg: #ffffff;
  --card: #fffaf3;
  --ink: #2b2118;
  --ink-2: #6b5a4a;
  --line: #eadfcf;
  --sq: #e0d0b6;
  --orange: #f0833a;
  --blue: #5b9bd0;
  --focus: #2a6db0;
  /* Type scale: 13 label, 15 interface, 17 reading, 22 section, 36 title. Mono is for numbers and code only. */
  --t-label: .8125rem;
  --t-ui: .9375rem;
  --t-read: 1.0625rem;
  --t-section: 1.375rem;
  --t-title: 2.25rem;
  --t-num: 1.25rem;
  --r: 14px;
  --r-s: 8px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { font-family: var(--font); background: var(--bg); color: var(--ink); line-height: 1.6; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-size: var(--t-read); }
main, .site-head, .site-foot { max-width: 72rem; margin: 0 auto; padding-left: 1.25rem; padding-right: 1.25rem; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { text-decoration-color: var(--orange); text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
[hidden] { display: none !important; }
.show-s { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--ink-2); }
code, .mono { font-family: var(--mono); font-size: .9em; }

/* Page chrome */
.site-head { display: flex; justify-content: space-between; gap: 1rem; padding-top: 1rem; padding-bottom: .5rem; font-size: .9375rem; }
.site-head a { color: var(--ink-2); }
.site-foot { margin-top: 5rem; padding-top: 1.25rem; padding-bottom: 2.5rem; border-top: 1px solid var(--line); color: var(--ink-2); font-size: .9375rem; }

/* Type */
h1 { font-size: var(--t-title); line-height: 1.1; letter-spacing: -.02em; margin: 1.25rem 0 .75rem; }
h2 { font-size: var(--t-section); line-height: 1.25; letter-spacing: -.01em; font-weight: 650; margin: 3rem 0 .6rem; }
h3 { font-size: 1.0625rem; margin: 1.5rem 0 .25rem; }
h4 { margin: 1rem 0 0; font-size: var(--t-ui); }
section > p, ol.steps li, .refs li, .qa > p, .shorter { line-height: 1.65; }
.lede { font-size: 1.25rem; color: var(--ink-2); margin-top: 0; max-width: 40rem; }
.shorter, section > p, section > ul, section > ol, .qa, .reveal, .refs, .concept-list, .formula { max-width: 70ch; }
ol.steps { padding-left: 1.25rem; }
ol.steps li { margin: .75rem 0; }
.formula { font-family: var(--mono); font-size: .875rem; background: var(--card); border: 1px solid var(--line); padding: .6rem .8rem; overflow-x: auto; white-space: pre-wrap; }
.refs { padding-left: 1.25rem; }
.refs li { margin: .5rem 0; }

/* Top of the page: idea on the left, the working picture on the right */
.hero { display: grid; gap: 1.5rem 3rem; grid-template-columns: minmax(0, 1fr); margin-top: .5rem; }
.hero-text h1 { margin-top: .5rem; }
.what { margin: 0 0 1rem; font-size: 1rem; color: var(--ink-2); }
.lede-list { margin: 0; padding-left: 1.1rem; font-size: 1rem; line-height: 1.5; }
.lede-list li { margin: .4rem 0; }
.try-this { margin: 1.5rem 0 0; padding: .6rem .9rem; background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--orange); border-radius: var(--r-s); font-size: var(--t-ui); }
.eyebrow { font-size: var(--t-label); text-transform: uppercase; letter-spacing: .07em; color: var(--ink-2); margin: 0 0 .6rem; font-weight: 600; }
@media (min-width: 64rem) {
  .hero { grid-template-columns: 20rem minmax(0, 1fr); align-items: start; }
}

/* Widget controls */
.widget { margin: 0; }
.widget > * + * { margin-top: .7rem; }
.controls { display: grid; gap: .5rem 1.5rem; grid-template-columns: 1fr 1fr; align-items: end; }
.controls .field { grid-column: 1 / -1; }
.field { display: grid; gap: .25rem; border: 0; padding: 0; margin: 0; }
.field label, .slider label, legend { font-size: var(--t-label); color: var(--ink-2); }
select { font: inherit; font-size: var(--t-ui); color: var(--ink); background: var(--card); border: 1px solid var(--ink-2); border-radius: var(--r-s); padding: .4rem .6rem; max-width: 100%; }
input[type=text], input[type=number], textarea { font: inherit; font-size: var(--t-ui); color: var(--ink); background: var(--card); border: 1px solid var(--ink-2); border-radius: var(--r-s); padding: .45rem .6rem; width: 100%; min-width: 0; }
textarea { resize: vertical; min-height: 3.5rem; field-sizing: content; }
button { font: inherit; font-size: .9375rem; color: var(--ink); background: transparent; border: 1px solid var(--ink); border-radius: 999px; padding: .4rem 1rem; cursor: pointer; }
button:hover:not(:disabled) { background: var(--orange); border-color: var(--orange); color: #2b2118; }
button:disabled { opacity: .4; cursor: default; }
.slider { display: grid; grid-template-columns: 1fr auto; gap: .1rem .75rem; align-items: center; }
.slider label { grid-column: 1 / -1; }
.slider output { font-family: var(--mono); font-size: var(--t-ui); min-width: 3.5ch; text-align: right; }
.slider input[type=range] { -webkit-appearance: none; appearance: none; background: transparent; height: 1.5rem; margin: 0; width: 100%; }
.slider input[type=range]::-webkit-slider-runnable-track { height: 2px; background: var(--ink-2); }
.slider input[type=range]::-moz-range-track { height: 2px; background: var(--ink-2); }
.slider input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 1.25rem; height: 1.25rem; margin-top: calc(-.625rem + 1px); background: var(--ink); border: 2px solid var(--bg); border-radius: 50%; }
.slider input[type=range]::-moz-range-thumb { width: 1.25rem; height: 1.25rem; background: var(--ink); border: 2px solid var(--bg); border-radius: 50%; }
.toggles { display: flex; flex-wrap: wrap; gap: .25rem 1.5rem; }
.check { display: flex; gap: .5rem; align-items: center; font-size: .9375rem; }
.check input { accent-color: var(--ink); width: 1.1rem; height: 1.1rem; }
fieldset.field legend { float: left; margin-right: .75rem; padding: 0; }
fieldset.field { display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; align-items: center; }

/* Cards: one per document */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
@media (min-width: 40rem) { .cards:has(> :nth-child(3):last-child) { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.card { background: var(--card); border: 1px solid var(--line); padding: .7rem .85rem .8rem; display: flex; flex-direction: column; gap: .4rem; min-width: 0; }
.card-head { display: flex; align-items: baseline; gap: .6rem; }
.card-head strong { font-size: 1rem; font-weight: 650; }
.meta { color: var(--ink-2); font-size: var(--t-label); }
.tag { margin-left: auto; font-size: .75rem; border: 1px solid var(--ink-2); padding: 0 .4rem; color: var(--ink-2); }
.strip { display: flex; flex-wrap: wrap; gap: 2px; align-items: center; min-height: 16px; }
.sq { width: 10px; height: 16px; background: var(--sq); border-radius: 3px; }
.tile { font-size: var(--t-label); line-height: 16px; padding: 0 6px; }
.tile.match { background: var(--orange); color: #2b2118; border-radius: 6px; font-weight: 700; }
.words { margin: 0; font-size: .8125rem; line-height: 1.35; color: var(--ink-2); overflow-wrap: anywhere; }
.words .tile { font-size: inherit; line-height: inherit; padding: 0 .25rem; margin: 0 .05rem; color: #2b2118; }
.rank { font-family: var(--mono); font-size: .875rem; font-weight: 700; border-bottom: 2px solid var(--ink); }
.words + .strip { display: none; }
.score-line { display: flex; align-items: center; gap: .6rem; }
.num { font-family: var(--mono); font-size: var(--t-num); font-weight: 600; min-width: 3.6ch; text-align: right; }
.stacked { flex: 1; min-width: 0; max-width: none; }
.stacked .outline { fill: none; stroke: var(--ink-2); stroke-width: 1; }
.stacked .split { stroke: var(--card); stroke-width: 2; }
.card .bar-text { margin: 0; }
.bar-text { font-size: var(--t-label); color: var(--ink-2); font-variant-numeric: tabular-nums; }
.story { margin: 0; font-size: var(--t-ui); line-height: 1.5; }
.legend { font-size: var(--t-label); color: var(--ink-2); margin: .75rem 0 0; }
.key { display: inline-block; width: .7rem; height: .7rem; margin-right: .3rem; }
.key.orange { background: var(--orange); }
.key.blue { background: var(--blue); }
.key.grey { background: var(--ink-2); }
.index-box { border-left: 3px solid var(--ink); padding-left: .85rem; }
.lookup { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; margin: .4rem 0; }
.chip { font-family: var(--mono); font-size: var(--t-label); padding: 1px 8px; border: 1px solid var(--ink-2); }
.chip.word { background: var(--orange); border-color: var(--orange); color: #2b2118; font-weight: 700; }
details { margin-top: .6rem; }
summary { cursor: pointer; font-size: .9375rem; }
summary:hover { text-decoration: underline; text-decoration-color: var(--orange); }

/* Charts */
.chart { width: 100%; max-width: 30rem; height: auto; display: block; }
.chart text { font-family: var(--font); font-size: 13px; fill: var(--ink); }
.chart .axis { stroke: var(--ink-2); stroke-width: 1; }
.chart .bar-orange { fill: var(--orange); }
.chart .bar-blue { fill: var(--blue); }
.chart .bar-grey { fill: var(--ink-2); }
.chart .curve-orange { stroke: var(--orange); }
.chart .curve-grey { stroke: var(--ink-2); }
.chart .muted { fill: var(--ink-2); }

/* Lessons: one small picture per rule */
.lessons { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 2rem; margin: 1.25rem 0 1.5rem; }
.lesson { border-top: 3px solid var(--orange); padding-top: .6rem; min-width: 0; }
.lesson h3 { margin: 0 0 .75rem; font-size: 1.0625rem; }
.caption { font-size: var(--t-ui); margin: .6rem 0 0; }
.mini { display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: .5rem; align-items: center; margin-bottom: .6rem; }
.mini-label { grid-column: 1 / -1; font-size: var(--t-label); color: var(--ink-2); }
.mini .num { font-size: 1.0625rem; }
.compact { margin-top: 1rem; }

/* Tables */
.table-wrap { overflow-x: auto; margin-top: .5rem; }
table { border-collapse: collapse; width: 100%; font-size: var(--t-label); font-variant-numeric: tabular-nums; }
th, td { text-align: right; padding: .25rem .6rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { font-weight: 600; color: var(--ink-2); }
tfoot td { font-weight: 600; border-bottom: 0; }
tr.hit td:first-child { border-left: 3px solid var(--orange); }
tr.miss td { color: var(--ink-2); }

/* Questions and reveal boxes */
.reveal { margin: .6rem 0; }
.reveal .answer { border-left: 3px solid var(--ink); padding: .1rem 0 .1rem .9rem; margin-top: .6rem; }
.reveal .answer > :first-child { margin-top: 0; }
.qa { margin: 1.5rem 0; }
.qa > p { margin: 0 0 .25rem; }

/* Editable document list */
.doc { border-top: 1px solid var(--line); padding-top: .75rem; margin-top: .5rem; }
.doc-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: .25rem; }
.doc-head label { font-weight: 600; font-size: 1rem; color: var(--ink); }
.row-actions { display: flex; gap: .5rem; margin-top: .5rem; }

/* Home page: titles only, areas side by side on wide screens, a series reads as a numbered list */
.home h1 { font-size: 2rem; margin: 1.5rem 0 .5rem; }
.home .lede { font-size: 1.125rem; margin-bottom: 2rem; }
.home .site-foot { margin-top: 1.5rem; }
.groups { columns: 2 22rem; column-gap: 5rem; }
.group { break-inside: avoid; margin: 0 0 2.5rem; }
.group h2 { margin: 0 0 .75rem; font-size: .8125rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-2); }
.concept-list { list-style: none; padding: 0; margin: 0; }
.concept-list li { padding: .2rem 0; font-size: 1.0625rem; line-height: 1.45; }
.concept-list.numbered { list-style: decimal; padding-left: 1.75rem; margin-top: .25rem; }
.concept-list.numbered li::marker { color: var(--ink-2); font-size: .875rem; }
.group a { text-decoration-color: var(--line); text-decoration-thickness: 1px; }
.group a:hover { text-decoration-color: var(--orange); text-decoration-thickness: 2px; }
.start { margin: 0 0 .5rem; font-size: 1.0625rem; font-weight: 600; display: flex; align-items: baseline; gap: .6rem; flex-wrap: wrap; }
.start .tag { margin-left: 0; font-weight: 400; background: var(--orange); border-color: var(--orange); color: #2b2118; }

@media (max-width: 40rem) {
  body { font-size: 1rem; }
  main, .site-head, .site-foot { padding-left: 1rem; padding-right: 1rem; }
  h1 { font-size: 1.75rem; margin: .5rem 0 .5rem; }
  h2 { font-size: 1.25rem; margin-top: 2.5rem; }
  .hero { gap: .75rem; }
  .lede-list { font-size: .9375rem; line-height: 1.35; }
  .lede-list li { margin: .1rem 0; }
  .try-this { margin-top: .5rem; font-size: .9375rem; }
  .eyebrow { display: none; }
  .widget > * + * { margin-top: .4rem; }
  .controls { gap: .3rem .75rem; }
  .controls .field label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .controls .field input { padding: .3rem .45rem; }
  .slider { gap: 0 .5rem; align-items: start; }
  .slider label { grid-column: 1; grid-row: 1; font-size: .75rem; line-height: 1.2; min-height: 2.4em; }
  .slider output { grid-column: 2; grid-row: 1; font-size: .875rem; }
  .slider input[type=range] { grid-column: 1 / -1; grid-row: 2; }
  .slider input[type=range] { height: 1.25rem; }
  .toggles { gap: 0 1rem; }
  .check { font-size: .875rem; }
  .cards { gap: .4rem; }
  .card { padding: .4rem .45rem; gap: .25rem; }
  .card-head { flex-wrap: wrap; row-gap: 0; }
  .card-head strong { font-size: 1rem; }
  .tag { margin-left: 0; white-space: nowrap; }
  .hide-s { display: none; }
  .show-s { display: block; }
  .sr-s { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; float: none !important; }
  .hero { gap: .75rem; }
  .hero-text h1 { margin-top: .25rem; margin-bottom: .5rem; }
  .what { font-size: .875rem; line-height: 1.45; margin-bottom: .6rem; }
  .lede-list { font-size: .9375rem; padding-left: 1rem; }
  .lede-list li { margin: .25rem 0; }
  .try-this { margin-top: .6rem; padding: .35rem .7rem; }
  .words { display: none; }
  .words + .strip { display: flex; }
  .sq { width: 6px; height: 11px; }
  .strip { gap: 1px; min-height: 11px; }
  .tile { font-size: .6875rem; line-height: 11px; padding: 0 3px; }
  .num { font-size: 1rem; min-width: 3.2ch; }
  .story { font-size: .8125rem; line-height: 1.35; }
  .bar-text { font-size: .6875rem; }
  .lessons { gap: 1.5rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* Line the bars up across cards: every strip reserves two rows, and the sentence sits at the bottom */
.strip { min-height: 34px; align-content: flex-start; }
.story { margin-top: auto; }
@media (max-width: 40rem) { .strip { min-height: 23px; } }

.breaks-box { max-width: 36rem; }
.chart.stacked { max-width: none; }

/* Ranked list (nDCG) */
.controls.one { grid-template-columns: minmax(0, 22rem); }
.stats { display: flex; flex-wrap: wrap; gap: .25rem 2rem; align-items: baseline; }
.stat { display: flex; align-items: baseline; gap: .5rem; }
.stat-label { font-size: var(--t-label); color: var(--ink-2); }
.stat-num { font-family: var(--mono); font-size: var(--t-num); font-weight: 600; }
.stat-num.big { font-size: 2rem; }
.meter { position: relative; height: 18px; border: 1px solid var(--ink-2); background: transparent; }
.meter .fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--orange); }
.meter .ghost { position: absolute; left: 0; bottom: -1px; height: 5px; background: var(--blue); }
.rank-head, .rank-row { display: grid; grid-template-columns: 2.5rem minmax(8rem, 1fr) 7.5rem 3.2rem minmax(5rem, 9rem) 2.8rem; gap: .25rem .6rem; align-items: center; }
.rank-head { font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-2); margin-top: .4rem; padding: 0 .4rem; }
.rank-row { background: var(--card); border: 1px solid var(--line); padding: .25rem .4rem; margin-top: 3px; }
.rank-row.dim { opacity: .55; }
.rank-row.dragging { border-color: var(--ink); background: var(--bg); }
.handle { font-family: var(--mono); font-size: .9375rem; font-weight: 600; width: 2.2rem; padding: .2rem 0; cursor: grab; touch-action: none; user-select: none; }
.handle:active { cursor: grabbing; }
.rtitle { font-size: .9375rem; line-height: 1.25; display: flex; flex-wrap: wrap; gap: .1rem .5rem; align-items: baseline; }
.rtitle .tag { margin-left: 0; }
.disc { font-family: var(--mono); font-size: .8125rem; color: var(--ink-2); }
.pts { font-family: var(--mono); font-size: .9375rem; font-weight: 600; text-align: right; }
.pbar .meter { height: 14px; }
.pbar .meter .ghost { height: 4px; }
.segmented { display: flex; border: 0; padding: 0; margin: 0; }
.seg-input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.segmented label { font-family: var(--mono); font-size: .875rem; border: 1px solid var(--ink-2); margin-left: -1px; width: 1.9rem; text-align: center; padding: .1rem 0; cursor: pointer; background: var(--card); }
.seg-input:checked + label { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.seg-input:focus-visible + label { outline: 2px solid var(--blue); outline-offset: 1px; position: relative; }
.systems { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.sys { background: var(--card); border: 1px solid var(--line); padding: .7rem .85rem; display: flex; flex-direction: column; gap: .4rem; min-width: 0; }
.sys-head { display: flex; align-items: baseline; gap: .6rem; }
.sys-head .tag { margin-left: auto; }
.gtiles { display: flex; gap: 3px; }
.gtile { width: 2rem; height: 2rem; display: grid; place-items: center; border: 1px solid var(--ink-2); font-family: var(--mono); font-weight: 600; }
.gtile.unknown { border-style: dashed; color: var(--ink-2); }
@media (max-width: 52rem) {
  .rank-head { display: none; }
  .rank-row { grid-template-columns: 3rem minmax(0, 1fr) auto; }
  .rank-row .disc, .rank-row .pbar, .rank-row .pts { grid-row: 2; }
  .rank-row .disc { grid-column: 1; text-align: left; }
  .rank-row .pbar { grid-column: 2; }
  .rank-row .pts { grid-column: 3; }
}
@media (max-width: 40rem) {
  .systems { grid-template-columns: 1fr; }
  .stat-num.big { font-size: 1.5rem; }
}

.rank-row { padding: .15rem .4rem; margin-top: 2px; }
.rank-row.cut { border-top: 2px dashed var(--ink-2); margin-top: 6px; }
.handle { padding: .1rem 0; }
.rtitle { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.rtitle[title] { cursor: default; }
@media (max-width: 52rem) { .rtitle { white-space: normal; } }

.meter .fill.blue { background: var(--blue); }
.meter .fill.grey { background: var(--ink-2); }

/* Bi-encoder vs cross-encoder diagram */
.buttons { display: flex; flex-wrap: wrap; gap: .5rem .75rem; align-items: center; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.compare .counts { grid-column: 1 / -1; margin-top: 0; }
.side { background: var(--card); border: 1px solid var(--line); padding: .6rem .75rem .75rem; min-width: 0; }
.side h3 { margin: 0 0 .4rem; font-size: 1.0625rem; display: flex; align-items: center; }
.stage { padding: .35rem 0; border-top: 1px solid var(--line); }
.stage.flash { outline: 2px solid var(--ink); outline-offset: -2px; background: var(--bg); }
.stage-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-2); display: flex; gap: .5rem; align-items: center; margin-bottom: .25rem; }
.stage-label .tag { margin-left: 0; text-transform: none; letter-spacing: 0; }
.flow { display: flex; flex-wrap: wrap; gap: .3rem .4rem; align-items: center; font-size: .875rem; }
.arrow { color: var(--ink-2); }
.pchip { border: 1px solid var(--ink-2); padding: 0 .4rem; font-size: .8125rem; white-space: nowrap; }
.pchip.plain { border-style: dashed; }
.pbox { padding: .1rem .5rem; font-weight: 600; font-size: .8125rem; color: #2b2118; white-space: nowrap; }
.pbox.bi { background: var(--orange); }
.pbox.cross { background: var(--blue); color: #2b2118; }
.vecs { display: inline-flex; gap: 2px; }
.vec { width: 5px; height: 16px; background: var(--orange); }
.counts th, .counts td { font-size: .875rem; }
.counts td { font-family: var(--mono); font-weight: 600; }
.logchart { display: grid; gap: .35rem; margin-top: .4rem; }
.log-row, .axis-row { display: grid; grid-template-columns: 7.5rem minmax(0, 1fr) 5rem; gap: .6rem; align-items: center; }
.log-label { font-size: .875rem; color: var(--ink-2); line-height: 1.2; }
.log-row .meter { height: 16px; }
.num.sm { font-size: 1rem; }
.ticks { position: relative; height: 1.4rem; border-top: 1px solid var(--ink-2); }
.tick { position: absolute; top: 2px; transform: translateX(-50%); font-size: .75rem; color: var(--ink-2); white-space: nowrap; }
.tick:first-child { transform: none; }
.tick:last-child { transform: translateX(-100%); }
.twin { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.twin figure { margin: 0; }
.twin figcaption { font-size: .8125rem; font-family: var(--mono); margin-top: .25rem; }
.grid { max-width: 12rem; }
.who { display: grid; gap: .8rem; }
.who-row { display: grid; gap: .3rem; }
.sqrow { display: inline-flex; gap: 2px; }
.sq.q { background: var(--ink); }
.sq.d { background: var(--sq); }
@media (max-width: 52rem) {
  .log-row, .axis-row { grid-template-columns: 5.5rem minmax(0, 1fr) 4rem; gap: .4rem; }
}
@media (max-width: 40rem) {
  .compare { grid-template-columns: 1fr; }
  .twin { grid-template-columns: 1fr 1fr; }
}

.controls.split { grid-template-columns: minmax(0, 22rem) 1fr; align-items: end; }
.controls.split .field { grid-column: auto; }
.controls.split .toggles { flex-direction: column; gap: .1rem; }
@media (max-width: 52rem) { .controls.split .field { grid-column: 1 / -1; } .controls.split .toggles { flex-direction: row; } }
@media (max-width: 52rem) { .controls.split { grid-template-columns: 1fr; } }
.stage { padding: .25rem 0; }
.logchart { gap: .25rem; }

.log-row, .axis-row { grid-template-columns: minmax(7.5rem, 11rem) minmax(0, 1fr) 6.5rem; }
.log-row .num { white-space: nowrap; }
#breaks-widget { max-width: 46rem; }
@media (max-width: 52rem) { .log-row, .axis-row { grid-template-columns: 6rem minmax(0, 1fr) 5.5rem; } }

/* Soft shapes */
.card, .sys, .side, .rank-row, .formula, .answer-box { border-radius: var(--r); }
.rank-row { border-radius: var(--r-s); }
.tag, .chip, .pchip, .pbox, .gtile { border-radius: 6px; }
.meter { border-radius: 999px; overflow: hidden; }
.segmented label:first-of-type { border-radius: var(--r-s) 0 0 var(--r-s); }
.segmented label:last-of-type { border-radius: 0 var(--r-s) var(--r-s) 0; }
.site-head a:first-child { font-weight: 600; }

/* Ranked list with a yes/no relevance box (retrieval metrics page) */
.rank-row.simple { grid-template-columns: 2.5rem minmax(0, 1fr) 11rem; }
.rank-row.simple .check { font-size: .9375rem; gap: .4rem; }
.mark { font-size: .8125rem; color: var(--ink-2); white-space: nowrap; }
@media (max-width: 40rem) { .rank-row.simple { grid-template-columns: 2.4rem minmax(0, 1fr) auto; } .rank-row.simple .mark { display: none; } }

/* Tile grids: one tile per case, with a mark inside so colour is never the only signal */
.dots { display: flex; flex-wrap: wrap; gap: 3px; align-content: flex-start; }
.dot { width: 1.15rem; height: 1.15rem; display: grid; place-items: center; font: 600 .6875rem/1 var(--mono); background: var(--sq); color: var(--ink); border-radius: 4px; }
.dot.first { background: var(--orange); }
.dot.second { background: var(--blue); }
.dot.err { background: var(--card); border: 1px solid var(--ink); }
.dot.drop { background: transparent; border: 1px dashed var(--ink-2); color: var(--ink-2); opacity: .6; }
@media (max-width: 40rem) { .dots { gap: 2px; } .dot { width: .8rem; height: .8rem; font-size: .5rem; border-radius: 3px; } }
.score-line .meter { flex: 1; min-width: 0; }

/* Two-by-two table of counts (human agreement page) */
.agree-top { display: grid; grid-template-columns: auto 1fr; gap: .5rem 2rem; align-items: start; }
.agree-grid { display: grid; grid-template-columns: auto 5.5rem 5.5rem; gap: .35rem .5rem; align-items: center; }
.agree-grid input { padding: .3rem .4rem; text-align: right; font-family: var(--mono); }
.agree-top .field { gap: .1rem; }
@media (max-width: 40rem) { .agree-top { grid-template-columns: 1fr; gap: .5rem; } .agree-grid { grid-template-columns: auto 1fr 1fr; } .agree-top .field .check { font-size: .8125rem; } }

/* RAG evals page */
.passage { align-items: flex-start; }
.claims { list-style: none; margin: 0; padding: 0; font-size: var(--t-ui); }
.claims li { margin: .1rem 0; }
.answer-line { margin: 0; font-size: .8125rem; color: var(--ink-2); }
@media (max-width: 40rem) { .stats { gap: 0 1rem; } .stats .stat-num { font-size: 1rem; } .stats .stat-label { font-size: .8125rem; } }

/* Task tiles (agent evals page): number of passing runs per task */
.dot.task-tile { width: 2rem; height: 1.6rem; font-size: .8125rem; }
.dot.always { background: var(--orange); }
.dot.never { background: var(--card); border: 1px solid var(--ink); }
@media (max-width: 40rem) { .dot.task-tile { width: 1.7rem; height: 1.3rem; font-size: .75rem; } }

/* Map of the eval pages */
.map-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .45rem; font-size: .9375rem; }
.map-list li { line-height: 1.35; }
.map-list li.off { opacity: .4; }
.map-list a { font-weight: 600; }
@media (min-width: 52rem) { .cards.three { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 40rem) {
  .cards.three .card:nth-child(3) { grid-column: 1 / -1; }
  .cards.three .card:nth-child(3) .map-list { display: flex; flex-wrap: wrap; gap: .1rem 1rem; }
  .map-list { font-size: .875rem; gap: .35rem; }
}