/* The star page (app.js learningFrame), after journey.css: a compact header so the situation starts
   high on a phone, levers beside what they change, a turn that lands as a moment, one way on. */

/* Header: field › subject and the title; the rest one tap away under "About this star". */
html:lang(en) .learn > .view-bar { margin-bottom: 12px; }
html:lang(en) .learning-experience > .star-head { padding-top: 22px; }
html:lang(en) .learning-experience .star-title { margin: 10px 0 6px; }
html:lang(en) .learning-experience .star-context { margin: 0 0 4px; }
html:lang(en) .star-about { font: 400 12px/1.6 var(--sans); color: var(--ink-3); }
html:lang(en) .star-about summary { cursor: pointer; width: max-content; list-style: none; text-decoration: underline; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: 3px; }
html:lang(en) .star-about summary::-webkit-details-marker { display: none; }
html:lang(en) .star-about[open] { padding-bottom: 6px; }
html:lang(en) .star-about p { margin: 6px 0 0; color: var(--ink-2); }
html:lang(en) .star-about .eyebrow { margin-right: 8px; }
html:lang(en) .learning-experience > .steps { margin-top: 16px; }
html:lang(en) .learning-experience .step { min-height: 42px; padding: 8px 0 11px; }

/* Skipping ahead is offered, never pushed: quieter than going on. */
html:lang(en) .step-bar .step-skip { background: none; border: 1px solid var(--line-2); color: var(--ink-2); box-shadow: none; }
html:lang(en) .step-bar .step-skip:hover { border-color: var(--ink); color: var(--ink); }

/* The turn: one panel, the moment the idea lands. */
html:lang(en) .learning-experience .reveal {
  margin-top: 28px;
  padding: 24px clamp(18px, 3vw, 30px);
  border: 0;
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 9%, var(--surface));
  scroll-margin-top: 90px;
}
html:lang(en) .learning-experience .reveal .reveal-mark { display: block; color: var(--accent); margin-bottom: 14px; }
html:lang(en) .learning-experience .reveal .reveal-bet { margin: 0 0 6px; font-size: 14px; color: var(--ink-2); }
html:lang(en) .learning-experience .reveal .reveal-then { margin: 0 0 18px; font-size: 15px; line-height: 1.6; color: var(--ink); }
html:lang(en) .learning-experience .reveal .reveal-insight { margin: 0 0 16px; font: 400 clamp(21px, 2.3vw, 26px)/1.4 var(--serif); letter-spacing: -.01em; color: var(--ink); }
html:lang(en) .learning-experience .reveal .reveal-pattern { margin: 0; font: 400 14px/1.55 var(--sans); color: var(--ink-2); }
html:lang(en) .learning-experience .reveal .reveal-pattern strong { font: 600 14px/1.55 var(--sans); color: var(--ink); }
html:lang(en) .learning-experience .reveal .reveal-pattern .eyebrow { display: block; margin-bottom: 2px; }
html:lang(en) .learning-experience .reveal .turn-exit { margin: 20px 0 0; padding: 14px 0 0; border: 0; border-top: 1px solid color-mix(in srgb, var(--accent) 25%, transparent); background: none; }

/* Plot labs: levers and their effect in view together. */
.plot-body { display: flex; flex-direction: column; gap: 14px; }
@media (min-width: 900px) {
  .plot-body { display: grid; grid-template-columns: minmax(220px, 290px) 1fr; gap: 28px; align-items: start; }
  .plot-controls { position: sticky; top: 92px; }
  .plot-body .chart-tick { font-size: 14px; }
}
@media (max-width: 899px) {
  /* On a phone the chart comes first, the levers right under it, then what the chart means. */
  .plot-view { display: contents; }
  .plot-view .plot-chart { order: 1; }
  .plot-controls { order: 2; }
  .plot-view .plot-readouts { order: 3; }
  .plot-view .zone-card, .plot-view .case-result { order: 4; }
}
@media (max-width: 720px) { .chart-tick { font-size: 24px; } }

/* The ending: one clear next star; every other way on under "More ways on". */
html:lang(en) .lit-panel .lit-next { width: 100%; margin-top: 22px; border-left-width: 3px; }
html:lang(en) .lit-panel .lit-next .twin-title { font-size: 20px; }
html:lang(en) .lit-panel .lit-next .twin-hint { color: var(--accent); }
html:lang(en) .lit-more { margin-top: 18px; font-size: 14px; }
html:lang(en) .lit-more > summary { cursor: pointer; color: var(--ink-2); width: max-content; }
html:lang(en) .lit-more[open] > summary { margin-bottom: 12px; }
html:lang(en) .lit-more > * + * { margin-top: 10px; }
html:lang(en) .lit-more-link { display: block; padding: 0; border: 0; background: none; color: var(--ink); font: 400 14px/1.6 var(--sans); text-align: left; cursor: pointer; text-decoration: underline; text-decoration-color: color-mix(in srgb, currentColor 30%, transparent); text-underline-offset: 4px; }

/* Phones: only the current chapter keeps its name; the others are numbers. */
@media (max-width: 700px) {
  html:lang(en) .learn > .view-bar { margin-bottom: 6px; }
  html:lang(en) .learning-experience > .star-head { padding-top: 16px; }
  html:lang(en) .learning-experience .star-title { font-size: 30px; margin-top: 8px; }
  html:lang(en) .learning-experience > .steps { gap: 18px; margin-top: 12px; }
  html:lang(en) .learning-experience .step:not(.is-active) .step-label { display: none; }
  html:lang(en) .learning-experience > .beat-body { padding-block: 18px; }
  html:lang(en) .learning-experience .scene { font-size: 19px; line-height: 1.5; }
}
html:lang(en) .learning-experience > .steps { scrollbar-width: none; }
html:lang(en) .learning-experience > .steps::-webkit-scrollbar { display: none; }

/* The situation's picture: the same art as its feed card (or its motion), so feed and star feel continuous. */
html:lang(en) .learning-experience .situation-art { height: clamp(140px, 22vw, 220px); margin: 0 0 22px; border-radius: 4px; overflow: hidden; background: color-mix(in srgb, var(--c, #bfc9c2) 22%, var(--surface)); }
html:lang(en) .learning-experience .situation-art > svg { display: block; width: 100%; height: 100%; }
html:lang(en) .learning-experience .situation-art.has-motion { height: clamp(180px, 26vw, 260px); }

/* The way on, right where the learner acted. */
html:lang(en) .learning-experience .beat-next { display: inline-flex; margin-top: 16px; }
html:lang(en) .learning-experience .turn-exit .beat-next { margin: 4px 0 12px; }
html:lang(en) .learning-experience .turn-exit .link-quiet { display: block; width: max-content; }
html:lang(en) .learning-experience .light-differs + .beat-next { margin: 0 0 22px; }

/* A nudge after a second miss: the star's own relation. */
html:lang(en) .learning-experience .ignite-nudge { margin: 16px 0 0; padding: 12px 16px; border-left: 3px solid var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--surface)); font: 400 15px/1.55 var(--sans); color: var(--ink); }
html:lang(en) .learning-experience .ignite-nudge .eyebrow { display: block; margin-bottom: 2px; color: var(--accent); }

/* The ending leads with the lit star; the subject's drawing is a small mark, not a block of space. */
html:lang(en) .learning-experience .lit-panel > .bloom { width: 72px; margin: 0 0 10px; }

/* Phones: the bottom bar stays in view above the dock, so the way on is always one tap away. */
@media (max-width: 700px) {
  html:lang(en) .learning-experience > .step-bar { position: sticky; bottom: calc(var(--phone-dock-height, 64px) + env(safe-area-inset-bottom, 0px)); z-index: 5; background: var(--surface); padding: 8px 16px; display: flex; flex-wrap: nowrap; align-items: center; gap: 10px; }
  html:lang(en) .learning-experience > .step-bar .step-where { display: none; }
  /* The sticky bar carries the way on here, so the in-place buttons would only repeat it. */
  html:lang(en) .learning-experience .beat-next { display: none; }
  html:lang(en) .learning-experience > .step-bar .step-back.is-empty { display: none; }
  html:lang(en) .learning-experience > .step-bar .btn { flex: 1; width: auto; min-height: 44px; margin: 0; }
  html:lang(en) .learning-experience .situation-art { height: 150px; margin-bottom: 16px; }
}

/* A constellation's case (app.js caseView): the situation and bet, then one lens per star, then the turn. */
.pip.is-case { display: inline-block; border-style: dashed; border-color: var(--accent); }
html:lang(en) .constellation-case .case-then { margin: 16px 0 0; padding: 14px 16px; border-left: 3px solid var(--line-2); background: color-mix(in srgb, var(--ink) 3%, var(--surface)); font: 400 15px/1.6 var(--sans); color: var(--ink); }
html:lang(en) .constellation-case .case-lenses { margin-top: 30px; }
html:lang(en) .constellation-case .case-lenses-intro { margin: 4px 0 14px; font: 400 15px/1.5 var(--sans); color: var(--ink-2); }
html:lang(en) .constellation-case .case-lens { border: 1px solid var(--line-2); border-radius: 4px; margin-bottom: 10px; background: var(--surface); }
html:lang(en) .constellation-case .case-lens.is-open { border-color: color-mix(in srgb, var(--accent) 45%, var(--line-2)); }
html:lang(en) .constellation-case .case-lens-ask { display: flex; justify-content: space-between; gap: 12px; width: 100%; padding: 14px 16px; border: 0; background: none; text-align: left; font: 500 15px/1.4 var(--sans); color: var(--ink); cursor: pointer; }
html:lang(en) .constellation-case .case-lens-ask::after { content: '+'; color: var(--ink-3); }
html:lang(en) .constellation-case .case-lens.is-open .case-lens-ask::after { content: ''; }
html:lang(en) .constellation-case .case-lens-reveals { margin: 0; padding: 0 16px 6px; font: 400 15px/1.6 var(--sans); color: var(--ink-2); }
html:lang(en) .constellation-case .case-lens-star { display: inline-block; margin: 2px 16px 12px; font-size: 13px; }
html:lang(en) .constellation-case .case-turn { margin-top: 26px; }
html:lang(en) .constellation-case .case-turn .beat-next { display: inline-flex; }
html:lang(en) .constellation-case .use-card { margin-top: 22px; }
html:lang(en) .constellation-case .case-lab { margin-top: 30px; }
html:lang(en) .constellation-case .case-lab > .eyebrow { display: block; margin-bottom: 10px; }
html:lang(en) .constellation-case .case-turn .case-relation { margin: 0 0 14px; font: 400 clamp(22px, 2.4vw, 28px)/1.35 var(--serif); letter-spacing: -.01em; color: var(--ink); }
html:lang(en) .constellation-case .case-turn .reveal-then { font: 400 15px/1.6 var(--sans); color: var(--ink-2); margin: 0 0 6px; }
html:lang(en) .constellation-case .case-elsewhere { margin-top: 24px; padding: 20px 22px; border: 1px solid var(--line-2); border-radius: 4px; }
html:lang(en) .constellation-case .case-elsewhere p { margin: 8px 0 0; font: 400 15px/1.6 var(--sans); color: var(--ink-2); }
html:lang(en) .constellation-case .case-elsewhere .case-elsewhere-scene { font: 400 18px/1.5 var(--serif); color: var(--ink); }
html:lang(en) .constellation-case .case-elsewhere .beat-next { display: inline-flex; margin-top: 16px; }

/* Two-setting levers are switches (labs.js leverControl). */
.lever-switch { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; padding: 10px 0; cursor: pointer; border-bottom: 1px solid var(--line-2); }
.lever-switch-input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.lever-switch-track { position: relative; width: 40px; height: 24px; border-radius: 12px; background: var(--line-2); transition: background .15s; }
.lever-switch-track::after { content: ''; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: var(--surface); box-shadow: 0 1px 2px rgba(0,0,0,.25); transition: transform .15s; }
.lever-switch-input:checked + .lever-switch-track { background: var(--accent); }
.lever-switch-input:checked + .lever-switch-track::after { transform: translateX(16px); }
.lever-switch-input:focus-visible + .lever-switch-track { outline: 2px solid var(--accent); outline-offset: 2px; }
.lever-switch-label { font: 400 15px/1.4 var(--sans); color: var(--ink); }
.lever-switch-state { font: 500 13px/1 var(--sans); color: var(--ink-3); min-width: 2em; text-align: right; }
.lever-switch-input:checked ~ .lever-switch-state { color: var(--accent); }
@media (prefers-reduced-motion: reduce) { .lever-switch-track, .lever-switch-track::after { transition: none; } }

/* Testable bets (labs.js plotLab): each explanation is a button that sets up the experiment; the learner's own comes first. */
.plot-tests { display: flex; flex-direction: column; gap: 8px; margin: 0 0 16px; }
.plot-tests > .eyebrow { margin-bottom: 2px; }
.test-btn { display: flex; flex-direction: column; align-items: flex-start; gap: 3px; width: 100%; padding: 11px 14px; border: 1px solid var(--line-2); border-radius: 4px; background: var(--surface); color: var(--ink); font: 400 15px/1.4 var(--sans); text-align: left; cursor: pointer; }
.test-btn:hover { border-color: var(--ink-3); }
.test-btn[aria-pressed="true"] { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, var(--surface)); }
.test-btn[aria-pressed="true"] .test-label::before { content: '▶ '; color: var(--accent); }
.test-mine { font: 600 11px/1 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.reveal-tests { margin: 0 0 18px; }
.reveal-tests ul { list-style: none; margin: 6px 0 0; padding: 0; }
.reveal-tests li { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); font: 400 14px/1.45 var(--sans); color: var(--ink-2); }
.reveal-tests li.is-mine { color: var(--ink); }
.reveal-tests li strong { font-weight: 600; color: var(--ink); white-space: nowrap; }