:root {
  --panel: var(--bg-2);
  --panel-2: color-mix(in srgb, var(--bg-2) 78%, var(--bg));
  --panel-3: var(--line);
  --line-2: var(--field);
  --text: var(--fg);
  --faint: var(--subtle);
  --accent: var(--orange);
  --accent-bright: var(--orange-hover);
  --accent-dim: color-mix(in srgb, var(--orange) 16%, transparent);
  --ok: var(--green);
  --warn: var(--yellow);
  --err: var(--red);
  --info: var(--blue);
  --r: var(--radius-lg);
  --r-sm: var(--radius-sm);
  --t: var(--dur-normal) var(--ease);
  --mono: var(--font-mono);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--fg);
  scroll-behavior: smooth;
  scroll-padding-top: 48px;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.014) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(0deg, rgba(255, 255, 255, 0.01) 1px, transparent 1px) 0 0 / 48px 48px,
    var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--orange);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-xl);
  min-height: 48px;
  padding: 0 clamp(16px, 4vw, 38px);
  border-bottom: 1px solid var(--border-deep);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--ink);
  font-weight: 700;
}

.mark {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  display: block;
}

main {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100vw - 36px));
  margin: 0 auto;
}

.board-shell {
  position: relative;
  display: grid;
  grid-template-rows: auto auto minmax(44px, 1fr);
  align-content: start;
  gap: clamp(20px, 2.8vh, 30px);
  min-height: calc(100svh - 48px);
  padding: clamp(26px, 4.5vh, 48px) 0 26px;
}

.board-head {
  max-width: 760px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  letter-spacing: 0;
  line-height: 1.14;
}

h1 {
  max-width: 720px;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
}

.eyebrow {
  margin: 0 0 var(--space-md);
  color: var(--orange);
  font-size: var(--fs-caption);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.tracer-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.bg-trace {
  position: fixed;
  z-index: 0;
  opacity: 0.1;
  pointer-events: none;
}
.bg-trace path { stroke: var(--orange); }
.bg-trace circle { fill: var(--orange); }
.bg-trace-tl { top: 64px; left: 0; }
.bg-trace-br { right: 0; bottom: 0; transform: rotate(180deg); }

.leaderboard-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--bg-2) 46%, var(--bg));
  box-shadow: 0 20px 80px color-mix(in srgb, #000 22%, transparent);
}




table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 12px;
}

th,
td {
  padding: 8px 13px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

tbody td {
  padding-top: 6px;
  padding-bottom: 6px;
}

th {
  background: color-mix(in srgb, var(--bg-2) 82%, var(--bg));
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

th:first-child,
td:first-child {
  width: 54px;
  color: var(--muted);
  text-align: right;
}

tbody tr:hover {
  background: color-mix(in srgb, var(--line) 58%, transparent);
}

td strong {
  display: block;
  color: var(--ink);
  line-height: 1.16;
}

td span {
  color: var(--muted);
  font-size: 10px;
  line-height: 1.12;
}

.pending {
  color: var(--yellow);
}

.score {
  min-width: 124px;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
}

.score span {
  display: inline-block;
  min-width: 42px;
  color: var(--yellow);
  font-size: 13px;
}

.score i {
  display: inline-block;
  width: 64px;
  height: 5px;
  margin-left: 9px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, var(--yellow) var(--score), color-mix(in srgb, var(--field) 52%, transparent) var(--score));
  vertical-align: 2px;
}

.rank {
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 700;
}

.date {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.model-cell {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  line-height: 1.16;
  min-width: 230px;
}

.model-cell strong,
.model-cell span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.provider-icon {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  color: var(--ink);
}

.provider-icon img {
  display: block;
  width: 19px;
  height: 19px;
  object-fit: contain;
}

.provider-initials {
  border: 1px solid var(--border);
  border-radius: 4px;
  background: color-mix(in srgb, var(--field) 64%, transparent);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  line-height: 1;
}

.provider-anthropic img,
.provider-xai img,
.provider-openai img,
.provider-glm img {
  filter: brightness(0) invert(1);
}

.provider-google img {
  width: 18px;
  height: 18px;
}

.provider-anthropic img {
  width: 20px;
  height: 20px;
}

.provider-xai img {
  width: 20px;
  height: 20px;
}

.provider-qwen img,
.provider-deepseek img,
.provider-kimi img,
.provider-glm img {
  width: 20px;
  height: 20px;
}

.section {
  padding: clamp(68px, 9vh, 92px) 0;
  scroll-margin-top: 80px;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.section-head span {
  color: var(--orange);
  font-weight: 700;
}

.section-intro {
  max-width: 820px;
  margin-top: 28px;
  color: var(--fg-2);
  font-size: 16px;
}

h2 {
  font-size: 23px;
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 18px;
  border-top: 1px solid var(--border);
}

.scope-grid article {
  padding: var(--space-xl);
  border-left: 1px solid var(--border);
}

.scope-grid article:first-child {
  padding-left: 0;
  border-left: 0;
}

.scope-grid h3 {
  margin-bottom: var(--space-md);
  font-size: 17px;
}

.scope-grid p {
  color: var(--fg-2);
  font-size: var(--fs-sm);
}

.cols {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  margin-top: 18px;
}

.cols article {
  padding: var(--space-xl);
  border-left: 1px solid var(--border);
}

.cols article:first-child {
  padding-left: 0;
  border-left: 0;
}

.cols h3,
.task-grid h3,
.contact-panel h3 {
  margin-bottom: var(--space-md);
  font-size: 17px;
}

.cols p,
.task-grid p,
.contact-panel p {
  color: var(--fg-2);
  font-size: var(--fs-sm);
}

.task-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 38px;
  align-items: start;
  margin-top: 22px;
}

.task-source {
  margin-bottom: var(--space-md);
  color: var(--muted);
  font-size: var(--fs-caption);
}

.interface-list {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
  color: var(--fg-2);
  font-size: var(--fs-sm);
}

.interface-list span {
  padding-left: var(--space-md);
  border-left: 2px solid var(--border);
}

.interface-list strong {
  color: var(--ink);
}

.panel-label {
  display: block;
  margin-bottom: var(--space-sm);
  color: var(--orange);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

pre {
  margin: 0;
  padding: var(--space-xl);
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--editor-bg);
  color: var(--editor-fg);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  line-height: 1.65;
}

.task pre {
  margin-top: var(--space-xl);
}

.editor {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--border-deep);
  border-radius: var(--radius-lg);
  background: var(--editor-bg);
}

.editor .bar {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 35px;
  padding-left: 13px;
  border-bottom: 1px solid var(--border-deep);
  background: var(--editor-chrome);
}

.editor .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #3a3a3a;
}

.editor .dot.mid {
  background: #4a4a4a;
}

.editor .dot.light {
  background: #5a5a5a;
}

.editor .etab {
  align-self: stretch;
  display: flex;
  align-items: center;
  margin-left: 8px;
  padding: 0 14px;
  border-top: 2px solid var(--orange);
  border-right: 1px solid var(--border-deep);
  background: var(--editor-bg);
  color: var(--ink);
  font-size: 11.5px;
}

.editor pre {
  margin: 0;
  max-height: 420px;
  padding: 15px 18px;
  border: 0;
  border-radius: 0;
  background: var(--editor-bg);
  color: var(--editor-fg);
  font-size: 13px;
  line-height: 1.7;
}

.editor .ln {
  display: inline-block;
  width: 1.6em;
  margin-right: 14px;
  color: var(--subtle);
  text-align: right;
  user-select: none;
}

.tk-c {
  color: var(--syntax-comment);
  font-style: italic;
}

.tk-k {
  color: var(--syntax-keyword);
  font-weight: 700;
}

.tk-a {
  color: var(--syntax-ato);
  font-weight: 700;
}

.tk-s {
  color: var(--syntax-string);
}

.tk-n {
  color: var(--syntax-number);
}

.tk-t {
  color: var(--syntax-type);
}

.tk-m {
  color: var(--syntax-member);
}

.tk-o {
  color: var(--editor-fg);
}

.result-explorer {
  margin-top: var(--space-2xl);
  border-top: 1px solid var(--border);
}

.sample-inspector {
  padding: var(--space-xl) 0 0;
}

.sample-inspector-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 460px);
  gap: var(--space-xl);
  align-items: end;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.sample-inspector-header h4 {
  margin: 0 0 var(--space-sm);
  color: var(--ink);
  font-size: 18px;
}

.result-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
}

.result-metrics div {
  min-width: 0;
  padding: var(--space-md);
  border-left: 1px solid var(--border);
}

.result-metrics div:first-child {
  border-left: 0;
}

.result-metrics span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.result-metrics strong {
  display: block;
  margin-top: var(--space-sm);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  text-transform: uppercase;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 1px 7px;
  border-radius: var(--r-sm);
  background: var(--panel-3);
  color: var(--muted);
  font: 500 11px var(--mono);
  white-space: nowrap;
}

.chip.ok {
  color: var(--ok);
  background: color-mix(in srgb, var(--ok) 13%, var(--bg));
}

.chip.warn {
  color: var(--warn);
  background: color-mix(in srgb, var(--warn) 13%, var(--bg));
}

.chip.err {
  color: var(--err);
  background: color-mix(in srgb, var(--err) 13%, var(--bg));
}

.chip.info {
  color: var(--info);
  background: color-mix(in srgb, var(--info) 13%, var(--bg));
}

.chip.accent {
  color: var(--accent-bright);
  background: color-mix(in srgb, var(--accent) 15%, var(--bg));
}

.mono {
  font-family: var(--font-mono);
}

.small {
  font-size: 11px;
}

.faint {
  color: var(--subtle);
}

.flex {
  display: flex;
  align-items: center;
}

.rv-reqs {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.rv-req-row {
  display: grid;
  grid-template-columns: minmax(250px, 1.35fr) minmax(135px, 0.7fr) 170px 230px 56px;
  gap: 12px;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
}

.rv-req-row:last-child {
  border-bottom: none;
}

.rv-req-head {
  padding: 7px 12px;
  background: var(--panel-2);
  color: var(--muted);
  font: 600 9.5px var(--font-mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.rv-req-clickable {
  cursor: pointer;
  transition: background var(--t);
}

.rv-req-clickable:hover,
.rv-req-clickable.open {
  background: var(--panel-2);
}

.rv-req-main {
  min-width: 0;
}

.rv-req-id {
  color: var(--orange);
  font-size: 11px;
  font-weight: 700;
}

.rv-req-name {
  margin-top: 2px;
  color: var(--fg);
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.35;
}

.rv-req-tech {
  overflow: hidden;
  margin-top: 2px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rv-req-thumb .plot-svg {
  display: block;
  width: 220px;
  height: 54px;
}

.rv-req-expand {
  padding: 6px 12px 12px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  background: color-mix(in srgb, var(--panel-2) 64%, transparent);
}

.plot {
  position: relative;
}

.plot .plot-svg {
  display: block;
  width: 100%;
  height: auto;
}

.plot .plot-tip {
  position: absolute;
  top: 2px;
  left: 50px;
  padding: 2px 7px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  color: var(--text);
  font: 10px var(--mono);
  pointer-events: none;
  white-space: nowrap;
  transition: opacity var(--t);
}

.gauge .gauge-svg {
  display: block;
  width: 170px;
  height: 34px;
}

.sc-cell {
  display: inline-block;
  padding: 3px 7px;
  border-radius: var(--radius-sm);
  color: #0a0a0a;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.scalar-detail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.scalar-detail div {
  padding: var(--space-sm);
  border-left: 2px solid var(--border);
  background: var(--bg-2);
}

.scalar-detail span,
.scalar-detail strong {
  display: block;
}

.scalar-detail span {
  color: var(--muted);
  font-size: 11px;
}

.scalar-detail strong {
  color: var(--ink);
  font-size: var(--fs-caption);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(190px, 260px);
  gap: var(--space-xl);
  align-items: stretch;
  margin-top: 18px;
  border-top: 1px solid var(--border);
}

.contact-panel > * {
  padding: var(--space-xl) 0;
}

.cta {
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 74px;
  padding: var(--space-xl);
  color: #fff;
  background: var(--orange);
  font-weight: 700;
  text-align: center;
}

.cta:hover {
  color: #fff;
  background: var(--orange-hover);
  text-decoration: none;
}

footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  padding: var(--space-xl) clamp(18px, 4vw, 46px);
  border-top: 1px solid var(--border-deep);
  color: var(--subtle);
  font-size: var(--fs-caption);
}

.footer-atopile {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--subtle);
  white-space: nowrap;
}

.footer-atopile span {
  color: var(--muted);
}

.footer-atopile img {
  display: block;
  width: 92px;
  height: auto;
  opacity: 0.82;
}

.footer-atopile:hover img {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }


}

@media (min-width: 621px) and (max-height: 760px) {
  .board-shell {
    grid-template-rows: auto auto minmax(34px, 1fr);
    gap: 16px;
    padding-top: 24px;
    padding-bottom: 8px;
  }

  .eyebrow {
    margin-bottom: 8px;
  }

  .model-cell div > span {
    display: none;
  }

  tbody td {
    padding-top: 6px;
    padding-bottom: 6px;
  }


}

@media (max-width: 920px) {
  footer {
    padding-top: var(--space-lg);
    padding-bottom: var(--space-lg);
  }

  .cols,
  .scope-grid,
  .task-grid,
  .sample-inspector-header,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .cols article,
  .cols article:first-child {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--border);
  }

  .cols article:first-child {
    border-top: 0;
  }

  .scope-grid article,
  .scope-grid article:first-child {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--border);
  }

  .scope-grid article:first-child {
    border-top: 0;
  }

  .rv-reqs {
    overflow-x: auto;
  }

  .rv-req-row {
    min-width: 900px;
  }

  .scalar-detail {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  main {
    width: min(100vw - 28px, 1160px);
  }

  .board-shell {
    padding-top: 22px;
    padding-bottom: 18px;
  }

  .section {
    padding: 72px 0;
  }

  .leaderboard-wrap {
    overflow-x: visible;
  }

  table {
    min-width: 0;
    table-layout: fixed;
  }

  th,
  td {
    padding: 9px 6px;
  }

  /* narrow screens carry just model, violin, score */
  th:nth-child(1),
  td.rank,
  th:nth-child(5),
  td.cost,
  th:nth-child(6),
  td.tok {
    display: none;
  }

  th:nth-child(3),
  td.score {
    width: 38%;
  }

  th:nth-child(4),
  td.scorecell {
    width: 56px;
  }

  .model-cell {
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 7px;
    min-width: 0;
  }

  .provider-icon {
    width: 22px;
    height: 22px;
  }

  .provider-icon img,
  .provider-google img,
  .provider-anthropic img,
  .provider-xai img,
  .provider-qwen img,
  .provider-deepseek img,
  .provider-kimi img,
  .provider-glm img {
    width: 17px;
    height: 17px;
  }

  .model-cell div > span {
    display: none;
  }

  .score {
    min-width: 0;
    font-size: 12px;
  }

  .score span {
    min-width: 0;
    font-size: 12px;
  }

  .score i {
    display: none;
  }

  .date {
    font-size: 10px;
  }

  .result-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .result-metrics div:nth-child(odd) {
    border-left: 0;
  }

  .result-metrics div:nth-child(n + 3) {
    border-top: 1px solid var(--border);
  }
}

/* ---- generated leaderboard additions (table numerics + cost/score chart) ---- */
.board th.num, .board td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.board-updated {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.02em;
}
.board-chart {
  margin-top: 14px;
}
.chart-shell {
  /* same container recipe as .leaderboard-wrap so the two read as siblings */
  margin-top: 0;
  padding: 24px 20px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--bg-2) 46%, var(--bg));
  box-shadow: 0 20px 80px color-mix(in srgb, #000 22%, transparent);
}
.chart-shell svg { width: 100%; height: auto; display: block; }
.chart-shell .grid { stroke: var(--border); stroke-width: 1; opacity: 0.5; }
.chart-shell .tick { fill: var(--muted); font: 500 12px var(--font-mono); }
.chart-shell .axis { fill: var(--muted); font: 600 12.5px var(--font-mono); letter-spacing: 0.04em; }
.chart-shell .pt { stroke: var(--bg); stroke-width: 1.5; }
.chart-shell .pt-label { fill: var(--fg); font: 500 12px var(--font-mono); }
.chart-shell .leader { stroke: var(--border); stroke-width: 1; }
.chart-note {
  margin: 10px 4px 6px;
  color: var(--muted);
  font-size: 12.5px;
}

.brand .ver {
  margin-left: 2px;
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--muted);
  font: 600 10.5px var(--font-mono);
  letter-spacing: 0.08em;
  transform: translateY(-1px);
}

.tier-chip {
  vertical-align: 3px;
  margin-left: 8px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ---- chart metric toggle + animated nodes ---- */
.chart-toggle-row {
  display: flex;
  justify-content: center;
  margin: 8px 0 4px;
}
.chart-toggle {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg-2);
}
.chart-toggle button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 600 12px var(--font-mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: color 160ms ease, background 160ms ease;
}
.chart-toggle button:hover { color: var(--fg); }
.chart-toggle button.on {
  color: var(--ink);
  background: var(--orange);
}
.chart-shell .node {
  transition: transform 650ms cubic-bezier(0.22, 1, 0.36, 1), opacity 300ms ease;
}
.chart-shell .node .leader, .chart-shell .node .pt-label { transition: opacity 300ms ease; }
.chart-shell .node.off { opacity: 0; pointer-events: none; }
/* hover isolation: the hovered model stays lit, the field recedes */
.chart-shell svg.focused .node:not(.hot):not(.off) { opacity: 0.13; }
.chart-shell .node.hot .pt-label { fill: var(--ink); font-weight: 700; }
.chart-shell .node.hot .leader { opacity: 1; }
.chart-shell svg > g:not(.node) { transition: opacity 180ms ease; }
.chart-shell svg g[style] { will-change: transform; }

/* ---- per-row score violin ---- */
td.score-violin { width: 380px; min-width: 280px; padding-top: 8px; padding-bottom: 8px; }
.violin { width: 100%; height: 34px; display: block; }
.violin .v-track { stroke: var(--border); stroke-width: 1; }
/* ink-monochrome mass; orange stays rationed to the mean tick */
.violin .v-body { fill: color-mix(in srgb, var(--ink) 10%, transparent); stroke: none; }

/* rows land top-to-bottom on first paint (JS staggers the delay per row) */
@keyframes row-in {
  from { opacity: 0; transform: translateY(7px); }
  to { opacity: 1; transform: translateY(0); }
}
tbody tr.row-in {
  opacity: 0;
  animation: row-in 0.38s var(--ease) forwards;
}
@media (prefers-reduced-motion: reduce) {
  tbody tr.row-in { opacity: 1; animation: none; }
}
.violin .v-dot { fill: var(--muted); opacity: 0.65; }
.violin .v-mean { stroke: var(--orange); stroke-width: 2; }
td.scorecell strong { font-size: 15px; }
td.scorecell small { color: var(--muted); font-size: 11px; }
.board td { padding-top: 9px; padding-bottom: 9px; }

/* ---- approach: design-cycle loop diagram ---- */
.loop-diagram { margin: 8px 0 30px; overflow-x: auto; }
.loop-diagram svg { display: block; width: 100%; min-width: 640px; }
.loop-diagram .seg { fill: var(--bg-2); stroke: var(--border); stroke-width: 1; shape-rendering: crispEdges; }
.loop-diagram .hotline { stroke: var(--orange); stroke-width: 2; shape-rendering: crispEdges; }
.loop-diagram .pct { fill: var(--fg); font: 600 13px var(--font-mono); text-anchor: middle; }
.loop-diagram .pct.dim { fill: var(--muted); font-weight: 400; }
.loop-diagram .stage { fill: var(--muted); font: 400 10px var(--font-mono); letter-spacing: 0.08em; text-anchor: middle; }
.loop-diagram .stage.hot { fill: var(--ink); }
.loop-diagram .dim { fill: none; stroke: var(--muted); stroke-width: 1; }
.loop-diagram .trace { fill: none; stroke: var(--orange); stroke-width: 1.5; }
.loop-diagram .trace-arrow { fill: var(--orange); }
.loop-diagram .arc-label { fill: var(--orange); font: 700 12px var(--font-mono); text-anchor: middle; letter-spacing: 0.14em; }
.loop-diagram .cap { fill: var(--muted); font: 400 11.5px var(--font-mono); text-anchor: middle; }

/* ---- topbar nav (multi-page split) ---- */
.topbar nav { margin-left: auto; display: flex; gap: 20px; }
.topbar nav a { color: var(--muted); font-size: 12.5px; text-decoration: none; letter-spacing: 0.04em; }
.topbar nav a:hover { color: var(--ink); }
.topbar nav a.on { color: var(--ink); border-bottom: 2px solid var(--orange); padding-bottom: 2px; }

/* On phones the inline links collapse behind a hamburger; the menu drops
   down from the sticky topbar (absolute against it) as a full-width sheet. */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  margin-left: auto;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 17px;
  height: 2px;
  margin: 0 auto;
  border-radius: 1px;
  background: var(--ink);
  transition: transform var(--dur-normal) var(--ease), opacity var(--dur-normal) var(--ease);
}

.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 620px) {
  .nav-toggle { display: flex; }

  .topbar nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    flex-direction: column;
    gap: 0;
    padding: 4px 0 10px;
    background: var(--bg);
    border-bottom: 1px solid var(--border-deep);
  }

  .topbar.nav-open nav { display: flex; }

  .topbar nav a {
    padding: 11px clamp(16px, 4vw, 38px);
  }

  .topbar nav a.on {
    border-bottom: 0;
    border-left: 2px solid var(--orange);
    padding-bottom: 11px;
    padding-left: calc(clamp(16px, 4vw, 38px) - 2px);
  }
}
.note h1 { color: var(--ink); font-size: 26px; margin: 6px 0 18px; }