/* ==========================================================================
   Page widgets: D&A-Bench explorer (#bench-widget) and CaP feedback explorer
   (#feedback-widget). Everything comes from the tokens in index.css; the only
   literals are data colors (model lines) and overlays that sit on top of video.
   ========================================================================== */

#bench-widget,
#feedback-widget {
  --dna: var(--c-dna);
  font-family: var(--font-text);
  /* index.css clips cards with overflow:hidden for the old stripe; sticky controls need it off */
  overflow: visible;
}

#bench-widget [hidden],
#feedback-widget [hidden] {
  display: none !important;
}

/* ---- intro, picker, hint ------------------------------------------------ */
.widget-intro {
  max-width: var(--measure);
  margin: 0 auto var(--space-4);
  font-size: var(--fs-2);
  line-height: var(--lh-body);
  color: var(--text);
  text-align: center;
  text-wrap: balance;
}

.widget-outro {
  margin: var(--space-4) auto 0;
}

.picker-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.picker-row .picker-label {
  flex: none;
  font-family: var(--font-display);
  font-size: var(--fs-1);
  font-weight: 600;
  line-height: var(--lh-ui);
  color: var(--text-muted);
}

.picker-row .select {
  flex: 0 1 28rem;
  min-width: 0;
}

.picker-row .select select {
  width: 100%;
  font-family: var(--font-display);
  font-size: var(--fs-2);
}

.dice-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 var(--space-2);
  font-size: 1.35rem;
  line-height: 1;
  color: var(--ink);
  background: var(--surface-sunken);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out);
}

.dice-btn:active:not(:disabled) {
  transform: scale(0.92);
}

.dice-btn:disabled {
  cursor: default;
  opacity: 0.5;
}

.widget-hint {
  margin: var(--space-2) auto 0;
  max-width: var(--measure);
  text-align: center;
}

/* ---- panels ------------------------------------------------------------- */
#bench-widget .panel-card,
#feedback-widget .panel-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-width: 0;
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: none;
}

.panel-label {
  margin-bottom: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--fs-1);
  font-weight: 600;
  line-height: var(--lh-ui);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.video-frame-wrap {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--media-bg);
}

.video-frame-wrap video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* "Loading video..." while the clip has no frame yet */
.video-frame-wrap.is-loading::after {
  content: "Loading video\2026";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--fs-1);
  color: #fff;
  pointer-events: none;
}

.tag.is-model,
#bench-widget .tag,
#feedback-widget .tag {
  font-family: var(--font-display);
}

/* ======================================================================
   D&A-Bench explorer
   ====================================================================== */
#bench-widget .instruction-line {
  margin-top: var(--space-4);
  font-size: var(--fs-2);
  line-height: var(--lh-body);
  color: var(--text);
  text-align: center;
}

#bench-widget .instruction-line b {
  color: var(--ink);
}

#bench-widget .badges {
  display: inline-flex;
  align-items: center;
  margin-left: var(--space-2);
  vertical-align: middle;
}

#bench-widget .instruction-line:empty,
#bench-widget .badges:empty {
  display: none;
}

.bench-stage {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

#bench-widget .video-frame-wrap {
  aspect-ratio: 640 / 368;
  cursor: pointer;
}

#bench-widget .step-badge {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  padding: 2px var(--space-2);
  border-radius: var(--radius-pill);
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-family: var(--font-display);
  font-size: var(--fs-1);
  line-height: var(--lh-ui);
  pointer-events: none;
}

/* play glyph while paused: says "click to play" */
#bench-widget .play-overlay {
  position: absolute;
  right: var(--space-3);
  bottom: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-pill);
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  pointer-events: none;
  transition: opacity var(--motion-fast) var(--ease-out);
}

#bench-widget .video-frame-wrap.is-playing .play-overlay {
  opacity: 0;
}

#bench-widget .chart-svg {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 13 / 6;
  touch-action: none;
  cursor: grab;
  user-select: none;
}

#bench-widget .chart-svg:active {
  cursor: grabbing;
}

#bench-widget .grid-line {
  stroke: var(--chart-grid);
  stroke-width: 1;
}

#bench-widget .axis-text {
  font-family: var(--font-display);
  font-size: 12px;
  fill: var(--chart-tick);
}

#bench-widget .axis-title {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  fill: var(--chart-tick);
}

#bench-widget .model-line {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.9;
}

#bench-widget .dna-line {
  fill: none;
  stroke: var(--dna);
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

#bench-widget .dna-dot {
  fill: var(--dna);
  opacity: 0.7;
}

#bench-widget .playhead-line {
  stroke: var(--playhead);
  stroke-width: 1.25;
  stroke-dasharray: 3 3;
  opacity: 0.7;
}

#bench-widget .playhead-dot {
  fill: var(--dna);
  stroke: var(--marker-halo);
  stroke-width: 2;
}

#bench-widget .slider-row {
  margin-top: var(--space-2);
}

#bench-widget input[type="range"],
#feedback-widget input[type="range"] {
  display: block;
  width: 100%;
  margin: 0;
  accent-color: var(--dna);
}

#bench-widget .legend {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

#bench-widget .legend-chips {
  gap: var(--space-2);
}

#bench-widget .legend-chip.is-model {
  min-height: 2rem;
  padding: var(--space-1) var(--space-3);
  border: 0;
  border-radius: var(--radius-sm);
  background-color: var(--c, var(--surface-sunken));
  color: var(--on-c, #fff);
  font-size: var(--fs-1);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  transition: opacity var(--motion-fast) var(--ease-out), filter var(--motion-fast) var(--ease-out);
}

#bench-widget .legend-chip.is-model.is-off {
  filter: grayscale(0.7);
  opacity: 0.55;
  text-decoration: none;
}

/* the always-on D&A entry is a label, not a control */
#bench-widget .legend-chip.is-static {
  cursor: default;
  filter: none;
}

/* controls: one row under the video and chart */
.bench-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  margin-top: var(--space-4);
}

#bench-widget .transport,
#bench-widget .speed-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

#bench-widget .transport .button {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-pill);
}

#bench-widget .speed-btn {
  min-width: 2.75rem;
  min-height: 2rem;
  padding: 0 var(--space-3);
  font-family: var(--font-display);
  font-size: var(--fs-1);
  font-weight: 600;
  color: var(--text);
  background: var(--surface-sunken);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--ease-out), color var(--motion-fast) var(--ease-out),
    border-color var(--motion-fast) var(--ease-out);
}

/* the active speed is a selection: the UI accent, not the D&A pink */
#bench-widget .speed-btn.is-active,
#bench-widget .speed-btn[aria-pressed="true"] {
  background: var(--link);
  border-color: var(--link);
  color: var(--bg);
}

#bench-widget .description-panel {
  margin-top: var(--space-4);
}

#bench-widget .description-text {
  max-width: var(--measure);
  min-height: 6.5rem;
  font-size: var(--fs-2);
  line-height: var(--lh-body);
  color: var(--ink);
}

#bench-widget .outcome-box {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

#bench-widget .outcome-grid {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: var(--space-2) var(--space-3);
  align-items: baseline;
}

#bench-widget .outcome-row {
  display: contents;
  font-size: var(--fs-2);
  line-height: var(--lh-body);
}

#bench-widget .outcome-row > span:last-child {
  max-width: var(--measure);
}

/* ======================================================================
   CaP feedback explorer
   ====================================================================== */
#feedback-widget .stat-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3) var(--space-5);
  margin: var(--space-4) 0 var(--space-2);
}

#feedback-widget .stat-tile {
  text-align: center;
}

#feedback-widget .stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text-muted);
}

#feedback-widget .stat-value.is-dna {
  color: var(--success-fg);
}

#feedback-widget .stat-label {
  margin-top: var(--space-1);
  font-family: var(--font-display);
  font-size: var(--fs-1);
  line-height: var(--lh-ui);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

#feedback-widget .stat-label.is-dna {
  color: var(--success-fg);
}

#feedback-widget .stat-arrow {
  color: var(--text-muted);
  font-size: 1.1rem;
}

#feedback-widget .case-caption {
  max-width: var(--measure);
  margin: var(--space-3) auto 0;
  min-height: 3.2rem;
  font-size: var(--fs-2);
  line-height: var(--lh-body);
  color: var(--text);
  text-align: center;
}

#feedback-widget .case-caption b {
  color: var(--ink);
}

#fb-compare-root {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

#feedback-widget .arm-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-2);
  font-family: var(--font-display);
  font-size: var(--fs-2);
  font-weight: 700;
  line-height: var(--lh-ui);
  color: var(--ink);
}

#feedback-widget .arm-dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

#feedback-widget .arm-dot.is-base {
  background: var(--c-gvl);
}

#feedback-widget .arm-dot.is-dna {
  background: var(--c-dna);
}

#feedback-widget .video-frame-wrap {
  aspect-ratio: 448 / 224;
}

#feedback-widget .outcome-tag-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  min-height: 1.5rem;
}

/* one cell per attempt: where the successes are, at a glance (click a cell to jump) */
#feedback-widget .outcome-strip {
  display: flex;
  gap: 2px;
  margin-top: var(--space-3);
}

#feedback-widget .outcome-strip .cell {
  flex: 1 1 0;
  min-width: 0;
  height: 14px;
  box-sizing: border-box;
  border-radius: 2px;
  border: 1px solid var(--danger-fg);
  background: var(--danger-bg);
  cursor: pointer;
}

#feedback-widget .outcome-strip .cell.is-success {
  border-color: var(--success-fg);
  background: var(--success-fg);
}

#feedback-widget .outcome-strip .cell.is-current {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
}

#feedback-widget .strip-caption {
  margin-top: var(--space-1);
  font-size: var(--fs-1);
  line-height: var(--lh-ui);
  color: var(--text-muted);
}

#feedback-widget .dna-text-box,
#feedback-widget .base-empty-note {
  flex: 1;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

#feedback-widget .dna-text-row {
  margin-bottom: var(--space-2);
  font-size: var(--fs-2);
  line-height: var(--lh-body);
  color: var(--text);
}

#feedback-widget .dna-text-row .tag {
  margin-right: var(--space-2);
}

#feedback-widget #fb-dna-carried-row {
  color: var(--text-muted);
  font-style: italic;
}

#feedback-widget .base-empty-note {
  color: var(--text-muted);
  font-size: var(--fs-2);
  line-height: var(--lh-body);
  font-style: italic;
}

/* transport: sits under the two videos; on narrow screens it stays pinned to the bottom of the viewport */
#feedback-widget .shared-transport {
  margin-top: var(--space-4);
  padding: var(--space-3) 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

#feedback-widget .transport-main {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  max-width: 34rem;
  margin: 0 auto;
}

#feedback-widget .transport-main .button {
  flex: none;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-pill);
}

#feedback-widget #fb-attempt-slider {
  flex: 1 1 8rem;
  min-width: 0;
  width: auto;
}

#feedback-widget .transport-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

#feedback-widget .attempt-readout {
  min-width: 7.5rem;
  font-family: var(--font-display);
  font-size: var(--fs-1);
  font-variant-numeric: tabular-nums;
  line-height: var(--lh-ui);
  color: var(--text);
  text-align: center;
}

#feedback-widget #fb-btn-play {
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--fs-1);
  font-weight: 600;
}

/* ---- hover only where a pointer can hover ------------------------------ */
@media (hover: hover) {
  .dice-btn:hover:not(:disabled) {
    background: var(--surface-hover);
  }

  #bench-widget .speed-btn:hover:not(.is-active) {
    background: var(--surface-hover);
  }

  #bench-widget .legend-chip.is-model:hover:not(.is-static) {
    filter: brightness(1.12);
  }

  #bench-widget .legend-chip.is-model.is-off:hover {
    filter: grayscale(0.4);
    opacity: 0.8;
  }

  #feedback-widget .outcome-strip .cell:hover {
    outline: 2px solid var(--text-muted);
    outline-offset: 1px;
  }
}

/* ---- touch: 44px targets, 8px gaps ------------------------------------- */
@media (pointer: coarse) {
  .dice-btn,
  #bench-widget .transport .button,
  #feedback-widget .transport-main .button {
    min-width: 44px;
    width: 44px;
    height: 44px;
  }

  .dice-btn {
    width: auto;
  }

  #feedback-widget #fb-btn-play {
    min-height: 44px;
    width: auto;
    padding-inline: var(--space-4);
  }

  #bench-widget .speed-btn {
    min-width: 44px;
    min-height: 44px;
  }

  #bench-widget .legend-chip.is-model {
    min-height: 40px;
  }

  #bench-widget input[type="range"],
  #feedback-widget input[type="range"] {
    height: 44px;
  }

  #feedback-widget .outcome-strip .cell {
    height: 20px;
  }

  .picker-row .select select {
    min-height: 44px;
  }
}

/* ---- narrow screens: less nesting, controls stay near what they change -- */
@media (max-width: 600px) {
  #bench-widget.section-card,
  #feedback-widget.section-card {
    padding: var(--space-3);
  }

  #bench-widget .panel-card,
  #feedback-widget .panel-card {
    padding: var(--space-3);
  }

  .bench-stage .panel-card {
    padding: 0;
    border: 0;
  }

  .picker-row {
    flex-wrap: wrap;
  }

  .picker-row .picker-label {
    flex-basis: 100%;
  }

  #feedback-widget .stat-value {
    font-size: 1.5rem;
  }

  #feedback-widget .stat-bar {
    gap: var(--space-3);
  }

  #bench-widget .outcome-grid {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }

  #bench-widget .outcome-row > .tag {
    justify-self: start;
    margin-top: var(--space-2);
  }
}

@media (max-width: 768px) {
  #feedback-widget .shared-transport {
    position: sticky;
    bottom: 0;
    z-index: 5;
    box-shadow: 0 -6px 12px -8px rgba(0, 0, 0, 0.25);
  }
}

@media (prefers-reduced-motion: reduce) {
  #bench-widget .play-overlay {
    transition: none;
  }
}

/* captions: one size and one color for the whole site */
:root {
  --caption-size: 0.9375rem;      /* 15px */
  --caption-color: var(--text);
}

/* ---- one style for every small subtext: captions, intros, hints and footnotes ----
   15px, dark gray, centered, as wide as their box; emphasis (strong/b) is the only thing that gets the ink color. */
.figure-caption,
.widget-intro,
.widget-hint,
.section-hint,
.ladder-note,
.hero-grid-note,
.hero-code-link,
#feedback-widget .case-caption {
  max-width: none;            /* captions use the full width of their box: one or two lines on a wide monitor */
  margin: var(--space-4) auto 0;
  font-family: var(--font-text);
  font-size: var(--caption-size);
  font-weight: 400;
  line-height: 1.55;
  color: var(--caption-color);
  text-align: center;
  text-wrap: pretty;
}

.figure-caption strong, .figure-caption b,
.widget-intro strong, .widget-intro b,
.widget-hint strong, .widget-hint b,
.section-hint strong, .section-hint b,
.ladder-note strong, .ladder-note b,
#feedback-widget .case-caption strong,
#feedback-widget .case-caption b {
  font-weight: 600;
  color: var(--ink);
}

/* a caption that introduces what follows keeps its space below instead of above */
.widget-intro:not(.widget-outro),
#feedback-widget .case-caption {
  margin: 0 auto var(--space-4);
}

/* tighter pairings */
.ladder-links { margin-top: var(--space-1); }
.hero-code-link { margin-top: var(--space-3); }
.widget-hint { margin-top: var(--space-2); }
.picker-row + .widget-hint { margin-top: var(--space-2); }

/* footnotes inside a panel follow the same type, just left aligned */
.frontier-panel-note {
  margin: var(--space-2) 0 0;
  font-size: var(--caption-size);
  font-weight: 400;
  line-height: 1.55;
  color: var(--caption-color);
}

/* the same caption type for the remaining small texts: per-video captions, task prompt lines, empty-state notes */
.gen-video-caption,
.embodiment-instruction,
#feedback-widget .base-empty-note {
  font-family: var(--font-text);
  font-size: var(--caption-size);
  font-style: normal;
  font-weight: 400;
  line-height: 1.55;
  color: var(--caption-color);
  text-align: center;
  text-wrap: pretty;
}

.gen-video-caption { margin-top: var(--space-3); }
.embodiment-instruction { margin: var(--space-2) 0 0; }