/* "Be Bilby" (explore/be-bilby.html) */

.bb-body { padding-bottom: clamp(32px, 5vw, 64px); }
.bb-nojs { margin: 0; padding: 18px 22px; border: 1px solid var(--line); border-radius: 16px; color: var(--text-2); }
.bb-toy { border-radius: 24px; padding: clamp(16px, 2.4vw, 26px); }

.bb-label, .bb-seg legend, .bb-counters dt {
  margin: 0; font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-3);
}
.msun sub { font-size: .72em; vertical-align: -0.2em; margin-left: .04em; }

/* ---------- data ---------- */
.bb-data-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; margin-bottom: 8px; }
.bb-data canvas {
  display: block; width: 100%; height: clamp(150px, 17vw, 196px);
  border: 1px solid var(--line); border-radius: 16px 16px 0 0; background: rgb(var(--bg-rgb) / .45);
}
.bb-data canvas.bb-resid { height: clamp(104px, 11vw, 128px); border-top: 0; border-radius: 0 0 16px 16px; }
.bb-data-note { display: flex; gap: 10px; align-items: baseline; margin: 10px 2px 0; font-size: .88rem; color: var(--text-3); max-width: 90ch; }
.bb-outline-key { flex: none; width: 18px; height: 0; border-top: 2px solid var(--amber); transform: translateY(-3px); }
.bb-switch { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: .9rem; color: var(--text-2); }
.bb-switch input { width: 16px; height: 16px; accent-color: var(--cyan); }

/* ---------- main: you + map ---------- */
.bb-main { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(20px, 3.2vw, 40px); margin-top: clamp(18px, 2.4vw, 26px); }

.bb-round { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin-bottom: 18px; }
.bb-seg { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 0; padding: 0; border: 0; }
.bb-seg legend { float: left; margin-right: 8px; padding: 0; }
.bb-seg label { position: relative; }
.bb-seg input { position: absolute; opacity: 0; pointer-events: none; }
.bb-seg span {
  display: inline-block; padding: 6px 11px; border-radius: 999px; border: 1px solid var(--line-2);
  font-family: var(--font-mono); font-size: 12px; color: var(--text-2); cursor: pointer;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease;
}
.bb-seg input:checked + span { border-color: var(--violet); background: rgb(var(--violet-rgb) / .14); color: var(--text); }
.bb-seg input:focus-visible + span { outline: 2px solid var(--cyan); outline-offset: 2px; }
.bb-new, .bb-small { min-height: 36px; padding: 0 16px; font-size: 14px; cursor: pointer; }

.bb-slider + .bb-slider { margin-top: 12px; }
.bb-slider-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 4px; }
.bb-slider-head label { font-family: var(--font-display); font-weight: 600; font-size: 1rem; }
.bb-slider-head output { font-family: var(--font-mono); font-size: 14px; color: var(--amber); }
.bb-scale { display: flex; justify-content: space-between; margin: 2px 0 0; font-family: var(--font-mono); font-size: 10.5px; color: var(--text-3); }
.bb-slider input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 26px; margin: 0; background: transparent; cursor: pointer; }
.bb-slider input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 999px; background: linear-gradient(90deg, rgb(var(--violet-rgb) / .55), rgb(var(--cyan-rgb) / .55)); }
.bb-slider input[type="range"]::-moz-range-track { height: 4px; border-radius: 999px; background: linear-gradient(90deg, rgb(var(--violet-rgb) / .55), rgb(var(--cyan-rgb) / .55)); }
.bb-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 20px; height: 20px; margin-top: -8px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--amber); box-shadow: 0 0 12px rgb(var(--amber-rgb) / .55);
}
.bb-slider input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 2px solid var(--amber); }
.bb-slider input[type="range"]:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; border-radius: 6px; }

.bb-meter { margin-top: 20px; padding: 16px 16px 14px; border: 1px solid var(--line); border-radius: 16px; background: rgb(var(--bg-rgb) / .5); }
.bb-meter-top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.bb-meter-top strong { font-family: var(--font-display); font-weight: 600; font-size: 1.6rem; letter-spacing: -.03em; }
.bb-bar { height: 8px; margin-top: 10px; border-radius: 999px; background: rgb(var(--surface-rgb) / .6); border: 1px solid var(--line); overflow: hidden; }
.bb-bar i { display: block; height: 100%; width: 2%; border-radius: 999px; transition: width .25s var(--ease), background-color .25s ease; }
.bb-status { margin: 12px 0 0; font-size: .95rem; color: var(--text-2); min-height: 2.9em; }
.bb-status.is-found { color: var(--text); font-weight: 600; }
.bb-sub { margin: 4px 0 0; font-family: var(--font-mono); font-size: 11.5px; color: var(--text-3); }
.bb-run { margin-top: 18px; border: 0; cursor: pointer; }
.bb-star { margin-left: 1px; }
.bb-footnote { margin: clamp(18px, 2.4vw, 26px) 2px 0; padding-top: 14px; border-top: 1px solid var(--line); font-size: .86rem; color: var(--text-3); max-width: 92ch; }
.bb-run:focus-visible, .bb-new:focus-visible, .bb-small:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

.bb-mapcol .bb-label { margin-bottom: 8px; }
.bb-map { border: 1px solid var(--line); border-radius: 16px; background: rgb(var(--bg-rgb) / .45); overflow: hidden; }
.bb-map canvas { display: block; width: 100%; aspect-ratio: 1 / 1; max-height: 560px; }
.bb-legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 10px 0 0; padding: 0; list-style: none; font-size: .82rem; color: var(--text-3); }
.bb-legend li { display: inline-flex; align-items: center; gap: 6px; }
.bb-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; }
.bb-legend .lg-you { border: 1.6px solid var(--amber); background: transparent; }
.bb-legend .lg-live { background: var(--cyan); }
.bb-legend .lg-worst { border: 2px solid #ff5a6a; }
.bb-legend .lg-post { background: rgb(var(--cyan-rgb) / .45); }
.bb-legend .lg-truth { background: var(--amber); clip-path: polygon(50% 0, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%); border-radius: 0; width: 12px; height: 12px; }
.bb-legend .lg-mc { width: 16px; height: 1px; border-radius: 0; background: var(--text-3); }
.bb-legend .bb-when-run, .bb-legend .bb-when-done, .bb-legend .bb-when-truth { display: none; }
.bb-zoom { margin-top: 12px; }
.bb-toy.is-done .bb-sampler-controls { display: none; }
.bb-zoom[hidden] { display: none; }
.bb-toy.is-running .bb-when-run, .bb-toy.is-done .bb-when-done, .bb-toy.is-revealed .bb-when-truth { display: inline-flex; }

/* ---------- sampler ---------- */
.bb-sampler { margin-top: clamp(22px, 3vw, 32px); padding-top: clamp(18px, 2.4vw, 26px); border-top: 1px solid var(--line); }
.bb-sampler-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 14px 24px; align-items: start; }
.bb-narration {
  margin: 0; padding: 12px 16px; border-left: 2px solid var(--cyan); border-radius: 0 12px 12px 0;
  background: rgb(var(--cyan-rgb) / .06); color: var(--text); font-size: 1rem; min-height: 3.2em;
}
.bb-sampler-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; justify-content: flex-end; }

.bb-counters { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; margin: 18px 0 0; border-radius: 14px; overflow: hidden; background: var(--line); border: 1px solid var(--line); }
.bb-counters > div { padding: 10px 14px; background: rgb(var(--bg-rgb) / .72); }
.bb-counters dd { margin: 4px 0 0; font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }

.bb-dash { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; margin-top: 18px; }
.bb-dash figure, .bb-hists figure { margin: 0; }
.bb-dash canvas { display: block; width: 100%; height: 190px; border: 1px solid var(--line); border-radius: 14px; background: rgb(var(--bg-rgb) / .45); }
.bb-dash figcaption { margin-top: 8px; font-size: .86rem; color: var(--text-3); }

.bb-results { margin-top: 26px; }
.bb-hists { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 10px; }
.bb-hists canvas { display: block; width: 100%; height: 110px; border: 1px solid var(--line); border-radius: 12px; background: rgb(var(--bg-rgb) / .45); }
.bb-hists figcaption { margin-top: 6px; font-size: .9rem; color: var(--text); }
.bb-hists figcaption span { color: var(--text-3); font-size: .86rem; }
.bb-takeaway { margin: 16px 0 0; font-size: 1rem; color: var(--text-2); max-width: 80ch; }
.bb-brute { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 12px 18px; margin-top: 18px; padding: 16px; border: 1px dashed var(--line-2); border-radius: 16px; }
.bb-brute button { cursor: pointer; flex: none; }
.bb-brute button:disabled { opacity: .5; cursor: default; }
.bb-brute p { flex: 1 1 320px; margin: 0; color: var(--text-2); font-size: .95rem; }

/* ---------- explainer ---------- */
.bb-explain { padding-top: clamp(48px, 6vw, 88px); }
.bb-explain .section-head { margin-bottom: 26px; }
.bb-cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.bb-card { padding: 20px 20px 22px; border: 1px solid var(--line); border-radius: 18px; background: rgb(var(--surface-rgb) / .3); }
.bb-card h3 { margin: 0 0 10px; font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; letter-spacing: -.02em; }
.bb-card p { margin: 0; color: var(--text-2); font-size: .94rem; }
.bb-model { margin-top: 22px; border: 1px solid var(--line); border-radius: 16px; }
.bb-model summary { cursor: pointer; padding: 15px 20px; list-style: none; font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .03em; color: var(--cyan); }
.bb-model summary::-webkit-details-marker { display: none; }
.bb-model summary::before { content: "+ "; }
.bb-model[open] summary::before { content: "− "; }
.bb-model summary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; border-radius: 16px; }
.bb-model-body { padding: 0 20px 18px; }
.bb-model-body p { margin: 0 0 10px; color: var(--text-2); font-size: .94rem; max-width: 80ch; }
.bb-model-body a { color: var(--text); text-underline-offset: 3px; }
.bb-links { display: flex; flex-wrap: wrap; gap: 14px 28px; margin-top: 28px; }
.bb-links .link-arrow { white-space: normal; }

/* ---------- smaller screens ---------- */
@media (max-width: 1100px) {
  .bb-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bb-counters { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .bb-main, .bb-dash, .bb-sampler-head { grid-template-columns: minmax(0, 1fr); }
  .bb-sampler-controls { justify-content: flex-start; }
}
@media (max-width: 620px) {
  .bb-cards, .bb-hists { grid-template-columns: minmax(0, 1fr); }
  .bb-counters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bb-seg legend { float: none; width: 100%; margin-bottom: 6px; }
}