:root {
  --bg: #ecebf3;
  --surface: #f8f7fc;
  --ink: #211f38;
  --muted: #6a6683;
  --line: #d7d4e6;
  --dim: #d9d6e7;

  --stage-top: #f8f7fd;
  --stage-bot: #e5e2f1;
  --ground: #d5d0e7;
  --ground-edge: #bcb5d8;
  --pad: #c7c0df;

  --agent: #2e2a58;
  --agent-limb: #221f47;
  --face: #100e25;
  --eye: #ffd66b;
  --bulb: #ffc94d;

  --crate: #e8b87c;
  --crate-dark: #c08a52;
  --crate-lid: #f2c991;
  --crate-in: #5b4127;
  --frame: #4a4071;
  --leg: #8a7fb2;
  --hole: #36325c;

  --think: #8b5cf6;
  --look: #2f8fe8;
  --do: #f29a0b;
  --check: #1f9d68;
  --bad: #e5484d;
  --idle: #c4bfd8;

  --radius-lg: 22px;
  --radius-sm: 10px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #16152a;
    --surface: #1f1e37;
    --ink: #efedf9;
    --muted: #a29dbd;
    --line: #2f2d4c;
    --dim: #34324f;
    --stage-top: #24233f;
    --stage-bot: #1c1b33;
    --ground: #2d2b4b;
    --ground-edge: #3d3a63;
    --pad: #403d68;
    --agent: #e6e1ff;
    --agent-limb: #c9c2f2;
    --face: #1c1a38;
    --eye: #ffd66b;
    --crate: #b98953;
    --crate-dark: #8c6337;
    --crate-lid: #cc9c63;
    --crate-in: #2e2113;
    --frame: #8d7fc4;
    --leg: #5b5288;
    --hole: #12112a;
    --think: #a383ff;
    --look: #4aa3f5;
    --do: #f6ab32;
    --check: #34c07f;
    --bad: #f2605f;
    --idle: #4a4769;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #16152a; --surface: #1f1e37; --ink: #efedf9; --muted: #a29dbd; --line: #2f2d4c; --dim: #34324f;
  --stage-top: #24233f; --stage-bot: #1c1b33; --ground: #2d2b4b; --ground-edge: #3d3a63; --pad: #403d68;
  --agent: #e6e1ff; --agent-limb: #c9c2f2; --face: #1c1a38; --crate: #b98953; --crate-dark: #8c6337;
  --crate-lid: #cc9c63; --crate-in: #2e2113; --frame: #8d7fc4; --leg: #5b5288; --hole: #12112a;
  --think: #a383ff; --look: #4aa3f5; --do: #f6ab32; --check: #34c07f; --bad: #f2605f; --idle: #4a4769;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  font-optical-sizing: auto;
}
.defs { position: absolute; width: 0; height: 0; overflow: hidden; }

/* ---------- masthead ---------- */
.masthead {
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(40px, 8vw, 96px) 24px 8px;
}
.wordmark {
  margin: 0;
  font-size: clamp(84px, 19vw, 200px);
  line-height: .86;
  letter-spacing: -.045em;
  font-variation-settings: "opsz" 96;
}
/* each letter tries harder than the last */
.wordmark span:nth-child(1) { font-weight: 200; }
.wordmark span:nth-child(2) { font-weight: 320; }
.wordmark span:nth-child(3) { font-weight: 440; }
.wordmark span:nth-child(4) { font-weight: 560; }
.wordmark span:nth-child(5) { font-weight: 680; }
.wordmark span:nth-child(6) { font-weight: 800; }
.lede {
  margin: 20px 0 0;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: -.01em;
}
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  font-weight: 600;
  font-size: 16px;
}
.legend li { display: flex; align-items: center; gap: 8px; }
.legend i { width: 22px; height: 10px; border-radius: 5px; background: var(--c); }

/* ---------- sections ---------- */
main { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
section { padding: clamp(40px, 6vw, 72px) 0 0; }
h2, .lede, .blurb, .kicker { text-wrap: balance; }
h2 {
  margin: 0;
  font-size: clamp(26px, 3.4vw, 36px);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 700;
}
.bar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 24px;
  margin-bottom: 20px;
}
.job { margin: 6px 0 0; color: var(--muted); font-size: 18px; }

/* ---------- controls ---------- */
.seg {
  display: inline-flex;
  padding: 4px;
  gap: 2px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.seg button, .btn {
  font: inherit;
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
  border: 0;
  background: transparent;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
}
.seg button[aria-checked="true"] { background: var(--ink); color: var(--bg); }
.seg button:hover:not([aria-checked="true"]) { background: var(--dim); }
.seg-sm button { font-size: 14px; padding: 6px 12px; }
.btn { background: var(--surface); border: 1px solid var(--line); }
.btn:hover { background: var(--dim); }
button:focus-visible { outline: 3px solid var(--look); outline-offset: 2px; }

/* ---------- race ---------- */
.lanes { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.lane {
  display: grid;
  grid-template-columns: 104px 1fr 96px;
  align-items: center;
  gap: 16px;
  padding: 8px 16px 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.lane-label { display: grid; gap: 6px; }
.lvl { font-weight: 700; font-size: 20px; letter-spacing: -.01em; line-height: 1; }
.meter { display: flex; gap: 3px; align-items: flex-end; height: 14px; }
.meter b { width: 5px; border-radius: 2px; background: var(--dim); }
.meter b:nth-child(1) { height: 6px; } .meter b:nth-child(2) { height: 8px; } .meter b:nth-child(3) { height: 10px; }
.meter b:nth-child(4) { height: 12px; } .meter b:nth-child(5) { height: 14px; }
.meter b.on { background: var(--bulb); }
.lane-main { display: grid; gap: 6px; min-width: 0; }
.scene { display: block; width: 100%; height: auto; overflow: hidden; }
.lane .scene { border-radius: 12px; }
.lane-hud { display: grid; justify-items: end; gap: 6px; }
.stats { display: flex; gap: 10px; color: var(--muted); font-weight: 600; font-size: 14px; font-variant-numeric: tabular-nums; }
.stats em, .hud em { font-style: normal; }
.stats span { display: inline-flex; align-items: center; gap: 4px; }
.stats svg { width: 15px; height: 15px; }
.result {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--dim);
  transform: scale(.6);
  opacity: .5;
  transition: transform .35s cubic-bezier(.3, 1.6, .5, 1), opacity .2s, background .2s;
}
.result svg { width: 20px; height: 20px; opacity: 0; transition: opacity .2s; }
.result.ok { background: var(--check); transform: scale(1); opacity: 1; }
.result.bad { background: var(--bad); transform: scale(1); opacity: 1; }
.result.ok svg, .result.bad svg { opacity: 1; }
.controls { display: flex; gap: 12px; align-items: center; margin-top: 16px; }

/* ---------- phase strips ---------- */
.strip { position: relative; height: 8px; }
.strip-lg { height: 14px; margin-top: 16px; cursor: pointer; touch-action: none; }
.strip .track, .strip .lit { position: absolute; inset: 0; }
.strip .seg-p { position: absolute; top: 0; bottom: 0; }
.strip .track .seg-p { opacity: .2; }
.strip .seg-p:first-child { border-radius: 99px 0 0 99px; }
.strip .seg-p:last-child { border-radius: 0 99px 99px 0; }
.strip .seg-p:only-child { border-radius: 99px; }
.strip .head {
  position: absolute; top: -5px; bottom: -5px; width: 4px; margin-left: -2px;
  border-radius: 2px; background: var(--ink);
}
.strip:not(.strip-lg) .head { display: none; }

/* ---------- close-up ---------- */
.dial { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.dial button {
  font: inherit;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 12px 10px;
  display: grid; gap: 8px; justify-items: start;
  cursor: pointer;
  text-align: left;
}
.dial button:hover { border-color: var(--muted); }
.dial button[aria-checked="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.dial button[aria-checked="true"] .meter b:not(.on) { background: color-mix(in srgb, var(--bg) 25%, transparent); }
.dial .lvl { font-size: 19px; }
.blurb { margin: 18px 0 14px; font-size: clamp(19px, 2.4vw, 24px); font-weight: 500; min-height: 1.5em; letter-spacing: -.01em; }
.wide {
  width: min(1360px, calc(100vw - 32px));
  margin-left: 50%;
  transform: translateX(-50%);
}
.stage {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
}
.close-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; }
.close-btns { display: flex; gap: 8px; }
.hud { display: flex; gap: 18px; font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; }
.hud span { display: inline-flex; align-items: center; gap: 6px; }
.hud svg { width: 18px; height: 18px; }

/* ---------- lesson matrix ---------- */
.matrix {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 88px repeat(3, 1fr);
  gap: 8px 20px;
  align-items: center;
}
.matrix .colh { font-weight: 700; font-size: 18px; padding-bottom: 4px; }
.matrix .rowh { font-weight: 700; }
.cell { display: flex; align-items: center; gap: 10px; padding: 6px 8px; border-radius: 12px; border: 2px solid transparent; }
.cell .strip { flex: 1; }
.cell .mark { width: 22px; height: 22px; flex: none; border-radius: 50%; display: grid; place-items: center; }
.cell .mark svg { width: 12px; height: 12px; }
.cell .mark.ok { background: var(--check); }
.cell .mark.bad { background: var(--bad); }
.cell.best { border-color: var(--ink); background: var(--surface); }
.kicker {
  margin: clamp(48px, 7vw, 88px) 0 0;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -.03em;
}
.foot { max-width: 1120px; margin: 0 auto; padding: 56px 24px 40px; color: var(--muted); font-size: 15px; }

/* ---------- scene artwork (SVG classes) ---------- */
.s-ground { fill: var(--ground); }
.s-ground-edge { stroke: var(--ground-edge); stroke-width: 2; }
.s-pad { fill: var(--pad); }
.s-crate { fill: var(--crate); }
.s-crate-band { fill: var(--crate-dark); opacity: .55; }
.s-crate-lid { fill: var(--crate-lid); stroke: var(--crate-dark); stroke-width: 1.5; }
.s-crate-in { fill: var(--crate-in); }
.s-q { fill: var(--crate-dark); font: 700 19px "Bricolage Grotesque", sans-serif; text-anchor: middle; }
.s-frame { fill: var(--frame); }
.s-leg { stroke: var(--leg); stroke-width: 5; stroke-linecap: round; }
.s-hole { fill: var(--hole); stroke: rgba(255,255,255,.55); stroke-width: 1.2; stroke-dasharray: 3 3; }
.piece-edge { fill: none; stroke: rgba(16, 14, 40, .45); stroke-width: 1.2; }
.piece-edge.wrong { stroke: var(--bad); stroke-width: 3; }
.a-shadow { fill: rgba(20, 16, 50, .16); }
.a-body { fill: var(--agent); }
.a-limb { stroke: var(--agent-limb); stroke-width: 6.5; stroke-linecap: round; }
.a-leg { fill: var(--agent-limb); }
.a-face { fill: var(--face); }
.a-eye { fill: var(--eye); }
.a-eyeline { fill: none; stroke: var(--eye); stroke-width: 2.4; stroke-linecap: round; }
.a-antenna { stroke: var(--agent-limb); stroke-width: 2.5; stroke-linecap: round; }
.a-bulb { fill: var(--bulb); }
.a-halo { fill: var(--bulb); }
.a-glass { fill: rgba(255,255,255,.45); stroke: var(--agent-limb); stroke-width: 2.5; }
.a-handle { stroke: var(--agent-limb); stroke-width: 3.5; stroke-linecap: round; }
.a-sweat { fill: #7cc7ff; }
.s-mark { font: 800 24px "Bricolage Grotesque", sans-serif; text-anchor: middle; }
.b-cloud { fill: var(--surface); stroke: var(--think); stroke-width: 2; }
.b-dot { fill: var(--surface); stroke: var(--think); stroke-width: 2; }
.b-sketch { fill: none; stroke: var(--think); stroke-width: 2.4; stroke-linejoin: round; }
.b-bang { fill: var(--think); font: 800 26px "Bricolage Grotesque", sans-serif; text-anchor: middle; }
.scan-line { stroke: var(--check); stroke-width: 3; stroke-linecap: round; }
.scan-beam { fill: var(--check); opacity: .13; }
.flaw { fill: none; stroke: var(--bad); stroke-width: 3.5; }
.stamp-ok { fill: var(--check); }
.stamp-bad { fill: var(--bad); }
.stamp-glyph { fill: none; stroke: #fff; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.sparkle { fill: var(--bulb); }

@media (max-width: 760px) {
  .lane { grid-template-columns: 1fr auto; gap: 8px 12px; padding: 12px; }
  .lane-label { grid-column: 1; grid-row: 1; display: flex; align-items: center; gap: 10px; }
  .lane-hud { grid-column: 2; grid-row: 1; display: flex; align-items: center; gap: 10px; }
  .lane-main { grid-column: 1 / -1; grid-row: 2; }
  .result { width: 30px; height: 30px; }
  .result svg { width: 15px; height: 15px; }
  .dial { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 4px; }
  .dial button { padding: 10px 6px 8px; justify-items: center; }
  .dial .lvl { font-size: 15px; }
  .matrix { grid-template-columns: 58px repeat(3, minmax(0, 1fr)); gap: 6px 8px; }
  .matrix .colh { font-size: 15px; }
  .matrix .rowh { font-size: 14px; }
  .cell { padding: 4px; gap: 5px; }
  .cell .mark { width: 18px; height: 18px; }
  main, .masthead, .foot { padding-left: 16px; padding-right: 16px; }
}