/* Optimizer Race: the Atlas layout (index left; title, controls, track and stage right), scoped
   under .bbob-race so the page can be embedded in another site. Method colours come from the
   host's --m-* tokens when it has them (the AMM site), else from the Okabe-Ito fallbacks here. */
.bbob-race {
  --bg: #edf1f3; --stage: #f8fafb; --ink: #13212b; --muted: #566874; --line: #c3cfd6;
  --chip: #f8fafb; --hover: #d8e1e6; --accent: #d55e00; --tip-bg: #13212b; --tip-fg: #edf1f3;
  --pin: #13212b;
  --c-mod: #0072b2; --c-sep: #009e73; --c-loc: #e69f00; --c-cond: #56b4e9; --c-glob: #cc79a7;
  --r-amm: var(--m-amm, #111111); --r-hcma: #009e73; --r-slsqp: var(--m-slsqp, #d55e00);
  --r-cma_bipop: var(--m-bipop, #56b4e9); --r-ngopt: var(--m-ngopt, #e69f00); --r-nelder_mead: var(--m-nm, #f0e442);
  --muted-map: #f5f7f8, #e3e8eb, #ccd4d9, #b2bdc4, #9eabb3;
  --r-scheme: light;
  --font-math: "STIX Two Text", "Cambria Math", "Times New Roman", serif;
  --font-ui: "Archivo", "Segoe UI", system-ui, sans-serif;
  --font-data: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  color: var(--ink); background: var(--bg);
  font: 400 14px/1.45 var(--font-ui);
  -webkit-font-smoothing: antialiased;
  position: relative;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .bbob-race {
    --bg: #0c1318; --stage: #111b22; --ink: #e2e9ed; --muted: #8b9daa; --line: #24343e;
    --chip: #15212a; --hover: #1a2932; --accent: #ff8a3d; --tip-bg: #e2e9ed; --tip-fg: #0c1318; --pin: #e2e9ed;
    --c-mod: #4ea6e0; --c-sep: #2fc39a; --c-loc: #f0b43c; --c-cond: #86cdf2; --c-glob: #e3a1c6;
    --r-amm: var(--m-amm, #f2f2f2); --r-hcma: #2fc39a;
    --muted-map: #0d151a, #17222a, #22303a, #30404b, #3d4f5b;
    --r-scheme: dark;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] .bbob-race {
  --bg: #0c1318; --stage: #111b22; --ink: #e2e9ed; --muted: #8b9daa; --line: #24343e;
  --chip: #15212a; --hover: #1a2932; --accent: #ff8a3d; --tip-bg: #e2e9ed; --tip-fg: #0c1318; --pin: #e2e9ed;
  --c-mod: #4ea6e0; --c-sep: #2fc39a; --c-loc: #f0b43c; --c-cond: #86cdf2; --c-glob: #e3a1c6;
  --r-amm: var(--m-amm, #f2f2f2); --r-hcma: #2fc39a;
  --muted-map: #0d151a, #17222a, #22303a, #30404b, #3d4f5b;
  --r-scheme: dark;
  color-scheme: dark;
}

.bbob-race *, .bbob-race *::before, .bbob-race *::after { box-sizing: border-box; }
.bbob-race [hidden] { display: none !important; }
.bbob-race sup { font-size: .7em; line-height: 0; vertical-align: .45em; }
.bbob-race button { font: inherit; color: inherit; margin: 0; }
.bbob-race :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.bbob-race ul { margin: 0; padding: 0; list-style: none; }

.br-app {
  height: 100%;
  display: grid; grid-template-columns: 196px minmax(0, 1fr) auto; gap: 14px;
  padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px));
}

/* ---- index (as in the Atlas) ---- */
.br-index {
  min-height: 0; overflow-y: auto; padding-block: 14px 12px; padding-right: 10px;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 12px; scrollbar-width: thin;
}
.br-brand { display: flex; flex-direction: column; gap: 2px; padding-left: 6px; }
.br-brand b { font: 650 13px/1.2 var(--font-ui); font-stretch: 112%; letter-spacing: .14em; text-transform: uppercase; }
.br-brand span { font: 400 11.5px/1.3 var(--font-data); color: var(--muted); }
.br-group { display: flex; flex-direction: column; gap: 1px; }
.br-group h3 {
  margin: 0 0 4px; padding-left: 6px; display: flex; gap: 6px;
  font: 600 10.5px/1.3 var(--font-ui); letter-spacing: .09em; text-transform: uppercase; color: var(--muted);
}
.br-group h3 .gnum { font-family: var(--font-data); font-weight: 500; letter-spacing: 0; }
.br-fbtn {
  display: grid; grid-template-columns: 22px 30px minmax(0, 1fr); align-items: center; gap: 8px;
  width: 100%; padding: 4px 6px; border: 0; border-radius: 5px; background: transparent;
  text-align: left; cursor: pointer;
}
.br-fbtn:hover { background: var(--hover); }
.br-fbtn[aria-current="true"] { background: var(--ink); color: var(--bg); }
.br-fbtn canvas { width: 22px; height: 22px; border-radius: 3px; display: block; }
.br-fbtn .num { font: 500 12px/1 var(--font-data); font-variant-numeric: tabular-nums; }
.br-fbtn .nm { font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---- main column ---- */
.br-main {
  min-width: 0; min-height: 0;
  display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 10px; padding-block: 14px 10px;
}
.br-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 16px; min-width: 0; }
.br-titles { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.br-eyebrow { font: 600 11px/1.3 var(--font-ui); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.br-title { margin: 0; display: flex; align-items: baseline; flex-wrap: wrap; gap: 2px 12px; }
.br-title .fsym { font: italic 500 36px/1 var(--font-math); letter-spacing: -.01em; }
.br-title .fsym sub { font-size: .52em; font-style: normal; vertical-align: -0.18em; margin-left: .04em; }
.br-title .fname { font: 650 24px/1.1 var(--font-ui); font-stretch: 92%; letter-spacing: -.01em; }
.br-pills { display: flex; flex-wrap: wrap; gap: 5px; }
.br-pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px 2px 7px; border-radius: 999px;
  background: var(--chip); border: 1px solid var(--line); font-size: 12px; line-height: 1.3; white-space: nowrap;
}
.br-pill i { width: 8px; height: 8px; border-radius: 50%; background: var(--c); flex: none; }

/* ---- the goal ---- */
.br-goal { margin: 0; font-size: 13px; color: var(--muted); }
.br-goal b { color: var(--ink); font-weight: 650; }
.br-goal-star { color: var(--pin); }

/* ---- the panel on the right: controls and the race track ---- */
.br-side {
  min-width: 0; min-height: 0; display: flex; flex-direction: column; gap: 10px;
  padding-block: 14px 10px; padding-left: 10px; border-left: 1px solid var(--line);
  width: 46px; overflow: hidden;
}
.br-side[data-open="true"] { width: 276px; overflow-y: auto; scrollbar-width: thin; }
.br-side-body { display: flex; flex-direction: column; gap: 10px; width: 254px; }
.br-side[data-open="false"] .br-side-body { display: none; }
.br-side-toggle {
  align-self: flex-start; display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  padding: 6px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--chip);
  font: 600 12px/1 var(--font-ui); color: var(--ink);
}
.br-side-toggle:hover { background: var(--hover); }
.br-side-toggle svg { width: 14px; height: 14px; fill: currentColor; flex: none; }
.br-side[data-open="false"] .br-side-toggle { flex-direction: column; padding: 9px 6px; }
.br-side[data-open="false"] .br-side-label { writing-mode: vertical-rl; transform: rotate(180deg); letter-spacing: .04em; }
.br-sec { display: flex; flex-direction: column; gap: 5px; }
.br-sec.br-inline { flex-direction: row; flex-wrap: wrap; align-items: center; gap: 6px; }
.br-opts { display: flex; flex-wrap: wrap; gap: 5px; }
.br-lab { font: 600 10.5px/1 var(--font-ui); letter-spacing: .09em; text-transform: uppercase; color: var(--muted); }
.br-seg { display: inline-flex; padding: 2px; border-radius: 7px; background: var(--stage); border: 1px solid var(--line); }
.br-seg button {
  border: 0; background: transparent; padding: 4px 9px; border-radius: 5px; cursor: pointer;
  font-size: 12.5px; font-weight: 550; color: var(--muted); font-variant-numeric: tabular-nums;
}
.br-seg button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.br-seg button:disabled { opacity: .45; cursor: not-allowed; }
.br-opt {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  padding: 4px 11px 4px 8px; border-radius: 999px; border: 1.5px solid var(--line); background: var(--chip);
  font-size: 12.5px; font-weight: 550; white-space: nowrap; color: var(--muted);
}
.br-opt i { width: 11px; height: 11px; border-radius: 50%; border: 2px solid var(--oc); background: transparent; flex: none; }
.br-opt[aria-pressed="true"] { color: var(--ink); border-color: var(--oc); }
.br-opt[aria-pressed="true"] i { background: var(--oc); box-shadow: 0 0 0 1px var(--stage); }
.br-opt:hover { background: var(--hover); }
.br-opt[data-o="amm"] { font-size: 13.5px; font-weight: 750; padding: 5px 13px 5px 9px; }
.br-opt[data-o="amm"] i { width: 13px; height: 13px; }
.br-tbtn {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 7px;
  border: 1px solid var(--line); background: var(--chip); cursor: pointer; font-size: 12.5px; font-weight: 550;
}
.br-tbtn:hover { background: var(--hover); }
.br-tbtn svg { width: 12px; height: 12px; fill: currentColor; }
.br-tbtn[aria-pressed="false"] { color: var(--muted); }

/* ---- the race track: one vertical lane per optimizer, from the start at the top to the finish
   line (10^-8 from the global minimum) at the bottom, on a log scale of f - f_opt ---- */
.br-vtrack {
  min-height: 0; display: flex; flex-direction: column; gap: 6px;
  padding: 8px 10px 8px; border-radius: 10px; border: 1px solid var(--line); background: var(--stage);
}
.br-vt-title { font: 650 12px/1.25 var(--font-ui); color: var(--ink); }
.br-vt-title span { font-weight: 400; color: var(--muted); }
.br-vt-body { flex: 1 1 auto; min-height: 0; display: flex; gap: 4px; }
.br-vscale { width: 38px; flex: none; display: flex; flex-direction: column; }
.br-vscale .sp-top { height: 36px; flex: none; }
.br-vscale .sp-bot { height: 22px; flex: none; }
.br-vscale .ticks { flex: 1; position: relative; font: 400 10px/1 var(--font-data); color: var(--muted); }
.br-vscale .ticks span { position: absolute; right: 4px; transform: translateY(-50%); white-space: nowrap; }
.br-col { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; align-items: center; }
.br-col-name {
  height: 20px; flex: none; display: flex; align-items: flex-end;
  font: 650 10.5px/1 var(--font-ui); color: var(--oc); white-space: nowrap;
  text-shadow: 0 0 2px var(--stage), 0 0 2px var(--stage);
}
.br-col[data-row="amm"] { flex-grow: 2.1; }
.br-col[data-row="amm"] .br-col-name { font-size: 12.5px; font-weight: 800; color: var(--ink); }
.br-col-val {
  height: 16px; flex: none; font: 400 9.5px/16px var(--font-data); color: var(--muted);
  white-space: nowrap; font-variant-numeric: tabular-nums;
}
.br-col[data-row="amm"] .br-col-val { color: var(--ink); font-weight: 500; }
.br-col-rail {
  flex: 1; position: relative; width: 10px; border-radius: 5px;
  background: repeating-linear-gradient(180deg, var(--line) 0 5px, transparent 5px 9px);
}
.br-col[data-row="amm"] .br-col-rail { width: 16px; border-radius: 8px; }
.br-run {
  position: absolute; left: 0; right: 0; top: 0; border-radius: inherit;
  background: var(--oc); box-shadow: 0 0 0 1px color-mix(in srgb, var(--ink) 25%, transparent);
  height: calc(var(--p, 0) * 100%);
}
.br-run::after {   /* the runner: a bar across the lane at the best value so far */
  content: ""; position: absolute; left: -5px; right: -5px; bottom: -2px; height: 4px; border-radius: 2px;
  background: var(--oc); box-shadow: 0 0 0 1.5px var(--stage), 0 0 0 2.5px color-mix(in srgb, var(--ink) 35%, transparent);
}
.br-col-rail::after {   /* the finish line at 10^-8: a chequered band across every lane */
  content: ""; position: absolute; left: -9px; right: -9px; bottom: -5px; height: 8px; border-radius: 1px;
  background: repeating-conic-gradient(var(--ink) 0 25%, var(--stage) 0 50%) 0 0 / 8px 8px;
  box-shadow: 0 0 0 1px var(--ink);
}
.br-col-end {
  height: 22px; flex: none; display: flex; align-items: flex-end; gap: 3px;
  font: 400 9.5px/1 var(--font-data); color: var(--muted);
}
.br-col-end .place {
  font: 700 9.5px/1 var(--font-data); padding: 2px 4px; border-radius: 4px; background: var(--ink); color: var(--bg);
}
.br-vt-finish {
  display: flex; align-items: center; gap: 6px; font: 400 11.5px/1.3 var(--font-ui); color: var(--muted);
}
.br-vt-finish b { color: var(--ink); text-transform: uppercase; letter-spacing: .06em; }
.br-vt-finish svg { width: 22px; height: 18px; flex: none; color: var(--ink); }

/* ---- the landscape with the race track right beside it ---- */
.bbob-race { --trackw: calc(100px + var(--lanes, 3) * 46px); }
.br-stagewrap { min-height: 0; display: flex; justify-content: center; align-items: stretch; gap: 10px; }
.br-stagewrap .br-view { height: 100%; aspect-ratio: 1.06 / 1; max-width: calc(100% - var(--trackw) - 10px); flex: 0 1 auto; }
.br-stagewrap .br-vtrack { width: var(--trackw); flex: none; }

/* ---- stage ---- */
.br-view {
  position: relative; min-height: 0; overflow: hidden;
  background: var(--stage); border-radius: 10px; border: 1px solid var(--line);
}
.br-view canvas.gl { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: pan-y; cursor: grab; }
.br-view canvas.gl.dragging { cursor: grabbing; }
.br-view canvas.overlay { position: absolute; inset: 0; width: 100%; height: 100%; display: block; pointer-events: none; }
.br-axes { position: absolute; inset: 0; pointer-events: none; }
.br-axes span {
  position: absolute; transform: translate(-50%, -50%);
  font: 400 11px/1 var(--font-data); color: var(--muted); white-space: nowrap;
}
.br-axes span.name { font: italic 500 14px/1 var(--font-math); color: var(--ink); }
.br-tip {
  position: absolute; pointer-events: none; z-index: 3; padding: 6px 9px; border-radius: 6px;
  background: var(--tip-bg); color: var(--tip-fg); font: 400 11.5px/1.45 var(--font-data); white-space: nowrap;
  transform: translate(18px, -50%);
}
.br-notice { position: absolute; left: 12px; bottom: 10px; right: 12px; font-size: 12px; color: var(--muted); pointer-events: none; }
.br-clock {
  position: absolute; left: 12px; top: 10px; z-index: 2; pointer-events: none;
  font: 500 12px/1.3 var(--font-data); color: var(--muted); font-variant-numeric: tabular-nums;
}
.br-clock b { color: var(--ink); font-weight: 600; }

/* ---- the winner ---- */
.br-win {
  position: absolute; inset: 0; z-index: 4; pointer-events: none;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center;
}
.br-win-row { display: flex; align-items: center; gap: 12px; animation: br-pop .8s cubic-bezier(.2, 1.7, .45, 1) both; }
.br-win-name {
  font: 800 clamp(30px, 5.4vw, 68px)/1 var(--font-ui); font-stretch: 105%; letter-spacing: -.01em;
  color: var(--wc);
  text-shadow: 0 0 2px var(--wo), 0 0 2px var(--wo), 0 0 4px var(--wo), 0 3px 0 var(--wo), 0 8px 18px rgba(0, 0, 0, .25);
  white-space: nowrap;
}
.br-win-name span { display: inline-block; animation: br-hop .55s ease-in-out both; animation-delay: calc(.75s + var(--i) * 45ms); }
.br-win-flag { width: clamp(34px, 4.5vw, 56px); height: auto; transform-origin: 8% 100%; animation: br-wave .5s ease-in-out .7s 5 alternate both; }
.br-win-sub {
  font: 600 clamp(13px, 1.5vw, 17px)/1.3 var(--font-ui); color: var(--ink);
  background: color-mix(in srgb, var(--stage) 86%, transparent); padding: 4px 12px; border-radius: 999px;
  border: 1px solid var(--line); animation: br-fade .4s ease-out .5s both;
}
.br-win.out { animation: br-out .5s ease-in both; }
.br-win.small .br-win-name { font-size: clamp(22px, 3.4vw, 40px); }
@keyframes br-pop {
  0% { transform: scale(.1) rotate(-14deg); opacity: 0; }
  60% { transform: scale(1.18) rotate(5deg); opacity: 1; }
  80% { transform: scale(.94) rotate(-2deg); }
  100% { transform: scale(1) rotate(0); }
}
@keyframes br-hop { 0%, 100% { transform: translateY(0); } 40% { transform: translateY(-.32em) rotate(-6deg); } 70% { transform: translateY(.04em); } }
@keyframes br-wave { from { transform: rotate(-10deg) skewY(-6deg); } to { transform: rotate(12deg) skewY(8deg); } }
@keyframes br-fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes br-out { to { opacity: 0; transform: scale(.92); } }

/* ---- footer ---- */
.br-foot {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 3px 16px;
  font: 400 11.5px/1.5 var(--font-data); color: var(--muted); font-variant-numeric: tabular-nums;
}
.br-foot { position: relative; }
.br-foot b { font-weight: 500; color: var(--ink); }
.br-how summary { list-style: none; cursor: pointer; display: inline-flex; align-items: center; }
.br-how summary::-webkit-details-marker { display: none; }
.br-info {
  display: inline-grid; place-items: center; width: 14px; height: 14px; border-radius: 50%;
  border: 1px solid var(--muted); color: var(--muted);
  font: italic 600 9.5px/1 var(--font-math);
}
.br-how summary:hover .br-info, .br-how[open] .br-info { border-color: var(--ink); color: var(--ink); }
.bbob-race .br-vh {
  position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}
.br-how-body {
  position: absolute; z-index: 6; left: 0; bottom: calc(100% + 8px); width: min(46ch, 100%);
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--chip);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .16);
  font: 400 12.5px/1.45 var(--font-ui); color: var(--ink); white-space: normal;
}
.br-how-body p { margin: 0; }
.br-how-body p + p { margin-top: 6px; }
.br-how-body a { color: var(--ink); }
.br-foot a { color: var(--ink); text-decoration-color: var(--line); text-underline-offset: 2px; }
.br-foot a:hover { text-decoration-color: var(--accent); }
.bbob-race kbd {
  font: 500 10.5px/1 var(--font-data); padding: 1px 4px; border-radius: 3px;
  border: 1px solid var(--line); background: var(--chip); color: var(--ink);
}

@media (max-width: 1100px) { .br-keys { display: none; } .br-app { grid-template-columns: 160px minmax(0, 1fr) auto; } }
@media (max-width: 760px) {
  .bbob-race, .br-app { height: auto !important; }
  .br-app { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .br-index {
    flex-direction: row; overflow-x: auto; overflow-y: hidden; gap: 4px;
    border-right: 0; border-bottom: 1px solid var(--line); padding: 10px 0 8px;
  }
  .br-brand, .br-group h3, .br-fbtn .nm { display: none; }
  .br-group { flex-direction: row; gap: 2px; }
  .br-group + .br-group { border-left: 1px solid var(--line); padding-left: 4px; }
  .br-fbtn { grid-template-columns: 20px auto; gap: 5px; width: auto; padding: 4px 6px; }
  .br-fbtn canvas { width: 20px; height: 20px; }
  .br-main { padding-block: 12px 14px; }
  .br-title .fsym { font-size: 30px; }
  .br-title .fname { font-size: 20px; }
  .br-pills { display: none; }
  .br-side, .br-side[data-open="true"] { width: auto; padding-left: 0; border-left: 0; border-top: 1px solid var(--line); padding-top: 12px; overflow: visible; }
  .br-side[data-open="false"] .br-side-toggle { flex-direction: row; padding: 6px 10px; }
  .br-side[data-open="false"] .br-side-label { writing-mode: horizontal-tb; transform: none; }
  .br-side-body { width: auto; }
  .br-stagewrap { flex-direction: column; }
  .br-stagewrap .br-view { width: 100%; height: auto; aspect-ratio: 1 / 1; max-width: none; }
  .br-stagewrap .br-vtrack { width: 100%; height: 300px; }
}
@media (prefers-reduced-motion: reduce) {
  .bbob-race * { animation: none !important; transition: none !important; }
}