/* Human Control's monochrome identity, adapted to the interaction lab.
 * Fonts are self-hosted; no decorative animation runs during measurement. */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("/vendor/fonts/inter-latin.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url("/vendor/fonts/jetbrains-mono-latin.woff2") format("woff2");
}
:root {
  --bg: #0b0b0d;
  --bg-2: #111114;
  --bg-3: #17171b;
  --line: #24242a;
  --line-2: #3a3a42;
  --fg: #f3f3f1;
  --fg-2: #bdbdc2;
  --fg-3: #8c8c94;
  --accent: var(--fg);
  --invert-fg: #0b0b0d;
  --warning: #d9b47a;
  --warning-bg: #221c14;
  --danger: #e5a697;
  --danger-bg: #241916;
  --positive: #bccdbc;
  --positive-bg: #171e19;
  --primary-hover: #d9d9d8;
  --active-ring: #f3f3f11a;
  --calibration-bg: rgba(11, 11, 13, .98);
  --calibration-ring: #f3f3f140;
  --gaze-ring: #755d3c;
  --positive-border: #516152;
  --danger-border: #765044;
  --warning-border: #75603d;
  --font-sans: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --radius: 6px;
  --wrap: 1180px;
  color-scheme: dark;
  color: var(--fg);
  background: var(--bg);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
:root[data-theme="light"] {
  --bg: #f7f7f5;
  --bg-2: #ffffff;
  --bg-3: #efefec;
  --line: #dedee3;
  --line-2: #bcbcc6;
  --fg: #161619;
  --fg-2: #4c4c55;
  --fg-3: #62626d;
  --invert-fg: #ffffff;
  --warning: #795312;
  --warning-bg: #fff4df;
  --danger: #9b3b2c;
  --danger-bg: #fff0eb;
  --positive: #315b3a;
  --positive-bg: #eaf4ec;
  --primary-hover: #303036;
  --active-ring: #1616191f;
  --calibration-bg: rgba(247, 247, 245, .98);
  --calibration-ring: #16161933;
  --gaze-ring: #9b782f;
  --positive-border: #9fbea5;
  --danger-border: #d9aaa0;
  --warning-border: #d4bb8b;
  color-scheme: light;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); }
::selection { background: var(--fg); color: var(--invert-fg); }
a { color: var(--fg); text-underline-offset: 4px; }
:focus-visible { outline: 2px solid var(--fg); outline-offset: 3px; }
img, svg, video { max-width: 100%; }

/* Wordmark and the shared page grid. */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  min-height: 68px;
  padding: 16px max(24px, calc((100vw - var(--wrap)) / 2));
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.brand.wordmark {
  display: inline-flex;
  align-items: baseline;
  font-size: 20px;
  line-height: 1;
  font-weight: 500;
  letter-spacing: -.03em;
  white-space: nowrap;
  color: var(--fg);
  text-decoration: none;
}
.brand-word { display: inline; }
.brand-gap { width: .27em; flex: none; }
.brand-mark {
  width: .71em;
  height: .78em;
  flex: none;
  align-self: baseline;
  margin-right: .015em;
  transform: translateY(.07em);
  overflow: visible;
}
.brand-mark path { fill: none; stroke: currentColor; stroke-linecap: round; }
.brand-mark circle { fill: currentColor; stroke: none; }
.local, .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .02em;
  color: var(--fg-3);
}
.local { border: 1px solid var(--line-2); border-radius: var(--radius); padding: 7px 10px; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle { display: inline-flex; justify-content: center; align-items: center; gap: 8px; min-width: 124px; padding: 9px 12px; white-space: nowrap; }
.theme-toggle svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.theme-moon, :root[data-theme="light"] .theme-sun { display: none; }
:root[data-theme="light"] .theme-moon { display: block; }
.eyebrow::before { content: ">"; margin-right: .6em; color: var(--fg-3); }
main { max-width: calc(var(--wrap) + 48px); margin: auto; padding: 48px 24px 64px; }
.intro { max-width: 950px; margin: 12px 0 48px; }
h1, h2, h3 { color: var(--fg); font-weight: 500; text-wrap: balance; }
h1 { font-size: clamp(40px, 6vw, 72px); letter-spacing: -.05em; line-height: 1; margin: 24px 0 28px; }
h2 { font-size: clamp(24px, 3vw, 32px); letter-spacing: -.035em; line-height: 1.1; margin: 8px 0 20px; }
h3 { font-size: 20px; letter-spacing: -.025em; line-height: 1.2; }
p { color: var(--fg-2); }
.intro > p:last-child { font-size: 18px; line-height: 1.65; max-width: 660px; }
.privacy { font-size: 13px; line-height: 1.65; margin: 14px 0 26px; color: var(--fg-3); }
#deployment-note {
  margin: 0 0 32px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-2);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.65;
  color: var(--fg-2);
}

/* Controls have stable geometry: hover changes colour, never position. */
.controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 24px;
}
.controls > div:first-child { display: flex; align-items: center; gap: 12px; min-width: 0; }
#status { font-size: 14px; font-weight: 500; }
#elapsed { font: 12px var(--font-mono); color: var(--fg-3); font-variant-numeric: tabular-nums; white-space: nowrap; }
.dot { width: 8px; height: 8px; flex: none; background: var(--fg-3); border-radius: 50%; }
.dot.active { background: var(--fg); box-shadow: 0 0 0 4px var(--active-ring); }
.buttons { display: flex; flex-wrap: wrap; gap: 10px; }
button {
  font: 600 13px/1.35 var(--font-sans);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 12px 18px;
  background: transparent;
  color: var(--fg);
  cursor: pointer;
}
button:not(:disabled):hover { border-color: var(--fg-2); background: var(--bg-3); }
button.primary { background: var(--fg); color: var(--invert-fg); border-color: var(--fg); }
button.primary:not(:disabled):hover { background: var(--primary-hover); border-color: var(--primary-hover); }
button:disabled { opacity: .45; cursor: default; }
input, select, textarea { font: inherit; color: var(--fg); }
input[type="checkbox"], input[type="radio"] { accent-color: var(--fg); width: 16px; height: 16px; flex: none; }
input::placeholder, textarea::placeholder { color: var(--fg-3); opacity: 1; }
label { display: block; font-size: 13px; color: var(--fg-2); margin: 12px 0 8px; }
textarea {
  font-size: 14px;
  width: 100%;
  resize: vertical;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  line-height: 1.6;
}
select { color-scheme: inherit; }
select option { background: var(--bg-2); color: var(--fg); }
.classifier-control { display: flex; align-items: center; gap: 10px 16px; flex-wrap: wrap; margin-top: 18px; font-size: 13px; color: var(--fg-3); }
.classifier-control label { display: flex; align-items: center; gap: 8px; margin: 0; font-weight: 500; color: var(--fg-2); }
#classifier-status { flex-basis: 100%; font-size: 12px; }
.capture-progress { font: 12px/1.65 var(--font-mono); color: var(--fg-3); }

/* Task stimulus dimensions and offsets remain fixed. */
.task { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 36px; padding: 30px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); }
.task > * { min-width: 0; }
.task-copy > p { font-size: 13px; }
.targets { display: flex; justify-content: space-between; align-items: center; min-height: 105px; gap: 10px; }
.target { width: 85px; height: 75px; flex: 0 1 85px; padding: 10px; border-radius: var(--radius); border-color: var(--line-2); background: var(--bg); color: var(--fg); font-family: var(--font-mono); font-size: 24px; font-weight: 500; }
.target:nth-child(2) { margin-top: 36px; }
.target:nth-child(3) { margin-top: -10px; }
.target span { display: block; font-family: var(--font-sans); font-size: 10px; font-weight: 400; margin-top: 4px; }
.target.selected, .target.selected:not(:disabled):hover { background: var(--fg); border-color: var(--fg); color: var(--invert-fg); }
.scroller { height: 330px; overflow: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); scrollbar-color: var(--line-2) var(--bg); }
.scroll-content { min-width: 510px; padding: 24px; }
.scroll-content article { min-height: 175px; max-width: 375px; border-bottom: 1px solid var(--line); padding: 10px 0 25px; }
.scroll-content span { font: 11px var(--font-mono); letter-spacing: .02em; color: var(--fg-3); }
.scroll-content p { font-size: 14px; }

/* Measurement summaries and numeric output. */
.results { margin-top: 48px; padding-top: 40px; border-top: 1px solid var(--line); }
.results-heading { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.results-heading h2 { margin-bottom: 0; }
.results > p { font-size: 14px; }
.cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin: 24px 0; }
.card { min-width: 0; background: var(--bg-2); border: 1px solid var(--line); padding: 22px; border-radius: var(--radius); }
.card small { display: block; color: var(--fg-3); font: 11px/1.6 var(--font-mono); letter-spacing: .02em; }
.card strong { display: block; font: 500 26px/1.25 var(--font-mono); margin: 12px 0; color: var(--fg); overflow-wrap: anywhere; }
.card p { font-size: 12px; margin: 0; color: var(--fg-3); }
.metric-table { width: 100%; border-collapse: collapse; margin: 15px 0 26px; background: transparent; font-size: 13px; }
.metric-table td, .metric-table th { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
.metric-table th { background: var(--bg-2); font: 400 11px/1.6 var(--font-mono); text-transform: uppercase; color: var(--fg-3); letter-spacing: .04em; }
.metric-table td { color: var(--fg-2); }
.metric-table td:first-child { color: var(--fg); }
.metric-table td:last-child { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
#details, #gaze-action-rows { overflow-x: auto; }
details { border-top: 1px solid var(--line); padding: 18px 0; }
summary { font: 12px/1.6 var(--font-mono); color: var(--fg-2); cursor: pointer; }
summary:hover { color: var(--fg); }
pre { font: 12px/1.7 var(--font-mono); max-height: 400px; overflow: auto; background: var(--bg); color: var(--fg-2); padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); }
.classification { padding: 22px; border: 1px solid var(--line); border-left: 3px solid var(--fg-2); border-radius: var(--radius); background: var(--bg-2); margin: 20px 0; }
.classification h3 { font-size: 26px; margin: 8px 0; }
.classification p { font-size: 13px; }
.classification[data-prediction="automation"] { border-left-color: var(--warning); }
.classification[data-prediction="unavailable"] { border-left-color: var(--fg-3); }
.probabilities { display: flex; flex-wrap: wrap; gap: 12px; font: 12px var(--font-mono); }
.probabilities span { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 6px 10px; }
.classification-caveat { margin-bottom: 0; color: var(--fg-3); }
.ai-results { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; margin: 20px 0; align-items: start; }
.ai-results > .classification { margin: 0; }
.raw-response { min-width: 0; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
.raw-response p { font-size: 13px; }
.raw-response pre { white-space: pre-wrap; overflow-wrap: anywhere; margin-bottom: 0; }
.evidence-support { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); margin: 20px 0; }
.evidence-support p { font-size: 13px; }
#support-warning { color: var(--warning); }

/* Sliding windows use the same hairlines and quiet surfaces as the reference. */
.rolling-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 24px; margin: 18px 0; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
.rolling-controls label { display: flex; align-items: center; gap: 10px; }
.rolling-controls .rolling-toggle { font-weight: 500; color: var(--fg); }
.rolling-controls select { border: 1px solid var(--line-2); border-radius: var(--radius); padding: 8px 12px; color: var(--fg); background: var(--bg); font: 12px var(--font-mono); }
.rolling-controls p { flex-basis: 100%; margin: 0; }
#rolling-status { font-size: 13px; font-weight: 500; }
.rolling-history-panel { margin: 24px 0; }
.rolling-table-wrap { overflow-x: auto; }
.rolling-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.rolling-table th, .rolling-table td { padding: 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.rolling-table th { color: var(--fg-3); font: 400 11px/1.6 var(--font-mono); white-space: nowrap; letter-spacing: .03em; text-transform: uppercase; }
.rolling-table td { font-family: var(--font-mono); font-size: 12px; color: var(--fg-2); font-variant-numeric: tabular-nums; }
.rolling-table tbody tr:first-child { background: var(--bg-2); }
.rolling-table td:first-child { white-space: nowrap; }

/* Camera controls stay outside the measured task. */
.gaze-controls, .gaze-results, .evaluation-controls { margin: 24px 0; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
.gaze-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.gaze-heading h2 { margin: 4px 0 12px; font-size: 24px; }
.gaze-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 20px 0; }
.gaze-buttons label { display: flex; align-items: center; gap: 8px; font-size: 14px; }
#gaze-preview { width: 160px; height: 120px; object-fit: cover; transform: scaleX(-1); border: 1px solid var(--line-2); border-radius: var(--radius); background: var(--bg); }
#gaze-calibration-overlay { position: fixed; inset: 0; z-index: 1000; background: var(--calibration-bg); }
.gaze-calibration-instructions { position: absolute; top: 18px; left: 50%; transform: translateX(-50%); display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 12px; width: min(90%, 850px); text-align: center; max-height: calc(50vh - 42px); overflow: auto; }
.gaze-calibration-instructions span { font-size: .85rem; color: var(--fg-2); }
#gaze-calibration-progress { font-family: var(--font-mono); font-size: 13px; font-weight: 500; }
#gaze-calibration-target { position: absolute; width: 24px; height: 24px; border: 4px solid var(--fg); border-radius: 50%; background: var(--fg); box-shadow: 0 0 0 5px var(--calibration-ring); transform: translate(-50%, -50%); pointer-events: none; }
#gaze-estimate-point { position: fixed; z-index: 900; width: 20px; height: 20px; border: 3px solid var(--fg); border-radius: 50%; background: var(--warning); box-shadow: 0 0 0 2px var(--gaze-ring); transform: translate(-50%, -50%); pointer-events: none; }
.gaze-outcome { padding: 14px 16px; margin: 14px 0; border: 1px solid var(--line-2); border-radius: var(--radius); background: var(--bg); }
.gaze-outcome[data-state="passed"] { border-color: var(--positive-border); background: var(--positive-bg); }
.gaze-outcome[data-state="failed"] { border-color: var(--danger-border); background: var(--danger-bg); }
.gaze-outcome[data-state="review"] { border-color: var(--warning-border); background: var(--warning-bg); }
.gaze-outcome p { font-size: 13px; margin: 8px 0 0; }
#gaze-calibration-feedback { flex-basis: 100%; font-weight: 500; }
#gaze-calibration-overlay[data-instructions="bottom"] .gaze-calibration-instructions { top: auto; bottom: 18px; }
.gaze-debug-controls { border-top: 1px solid var(--line); padding-top: 16px; margin: 20px 0; }
.gaze-debug-controls label { display: flex; gap: 8px; align-items: center; font-weight: 500; }
#gaze-debug-status { overflow-wrap: anywhere; }
#gaze-debug-status[data-state="recording"], #gaze-recording-indicator { color: var(--warning); font-weight: 500; }
#gaze-debug-downloads { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; }
.gaze-heading.alignment { flex-direction: column; align-items: flex-start; }
#gaze-preview.alignment-preview { width: min(480px, 100%); height: auto; max-height: 360px; object-fit: contain; }
#gaze-alignment { margin: 12px 0; padding: 16px; border: 1px solid var(--line-2); border-radius: var(--radius); background: var(--bg); }
.evaluation-controls label { display: block; margin: 8px 0; font-weight: 500; color: var(--fg-2); }
.evaluation-controls select, .evaluation-controls input { width: 100%; max-width: 480px; padding: 11px 12px; border: 1px solid var(--line-2); border-radius: var(--radius); background: var(--bg); color: var(--fg); font-size: 14px; }

footer { max-width: calc(var(--wrap) + 48px); margin: auto; padding: 28px 24px 40px; font: 11px/1.7 var(--font-mono); color: var(--fg-3); border-top: 1px solid var(--line); }

@media (max-width: 750px) {
  header { gap: 16px; }
  .local { display: none; }
  main { padding-top: 32px; }
  .intro { margin-top: 4px; margin-bottom: 32px; }
  h1 { margin-top: 20px; font-size: clamp(36px, 7.5vw, 54px); }
  .intro > p:last-child { font-size: 16px; }
  .controls { align-items: flex-start; flex-direction: column; padding: 20px; }
  .task { grid-template-columns: minmax(0, 1fr); padding: 22px; gap: 12px; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .results-heading { align-items: flex-start; flex-direction: column; gap: 16px; }
  .scroll-content { min-width: 440px; }
  .ai-results { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
  .gaze-heading { flex-wrap: wrap; align-items: flex-start; }
  .rolling-controls { padding: 18px; }
  .rolling-controls label { flex-basis: 100%; justify-content: space-between; }
  .rolling-controls .rolling-toggle { justify-content: flex-start; }
  .gaze-controls, .gaze-results, .evaluation-controls { padding: 20px; }
  .metric-table td, .metric-table th { padding: 12px 8px; }
}
@media (max-width: 520px) {
  header { padding-inline: 16px; }
  main { padding-inline: 16px; }
  footer { padding-inline: 16px; }
  .eyebrow { font-size: 10px; line-height: 1.8; }
  .controls > div:first-child { gap: 8px; }
  #status { font-size: 13px; }
  .task { padding: 18px; }
}
@media (max-width: 440px) { .cards { grid-template-columns: minmax(0, 1fr); } }
@media (prefers-reduced-motion: no-preference) {
  button { transition: background .15s, border-color .15s, color .15s; }
}