/* PAC writing desk and scientific instrument treatment.
   Presentation only: no Gallery descendants or disclosure-state overrides. */

#studio > .studio-arrival,
#coach > .studio-arrival {
  position: relative;
  padding: 24px max(24px, calc((100vw - var(--max)) / 2 + 32px));
  gap: 20px 32px;
  color: var(--paper);
  background: linear-gradient(105deg, var(--maroon-950), var(--maroon-900) 65%, var(--maroon-800));
  border-top: 1px solid var(--paper-3);
  border-bottom: 4px double var(--paper-3);
  box-shadow: inset 0 6px 0 var(--maroon-950);
}

#studio > .studio-arrival h1,
#coach > .studio-arrival h1 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: clamp(2rem, 3.3vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -.025em;
}

#studio > .studio-arrival .eyebrow,
#coach > .studio-arrival .eyebrow {
  margin-bottom: 10px;
  color: var(--paper-2);
  font-size: .65rem;
  letter-spacing: .16em;
}

#studio > .studio-arrival .lede,
#coach > .studio-arrival .lede {
  max-width: 760px;
  font-size: 1.08rem;
  line-height: 1.5;
}

#studio > .studio-arrival .return-gallery,
#coach > .studio-arrival .return-gallery {
  color: var(--paper);
  border-bottom: 1px solid var(--paper-3);
  min-height: 44px;
  line-height: 1.5;
}

/* Indexed folios: the actual case numbers remain the only labels. */
#studio > .case-selector {
  gap: 6px;
  padding: 14px 32px 8px;
}

#studio > .case-selector button {
  flex: 0 1 auto;
  min-width: 100px;
  min-height: 44px;
  padding: 9px 17px;
  color: var(--ink-soft);
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  border-radius: 3px 3px 0 0;
  box-shadow: inset 0 3px 0 var(--paper);
  font-family: var(--serif);
  font-size: 1rem;
  text-align: left;
}

#studio > .case-selector button.is-selected {
  color: var(--paper);
  background: var(--maroon-800);
  border-color: var(--maroon-800);
  box-shadow: inset 0 3px 0 var(--paper-3);
}

#studio > .case-selector button span { color: inherit; opacity: 1; }
#studio > .case-selector button:hover { border-color: var(--maroon-800); }

#studio > .case-path {
  padding-bottom: 8px;
  border-bottom: 3px double var(--paper-3);
  gap: 8px 26px;
}

#studio > .case-path button {
  font-size: .78rem;
  min-height: 44px;
  letter-spacing: .01em;
}

#studio > .case-path button[aria-current="step"] {
  border-bottom-color: var(--maroon-800);
  color: var(--maroon-800);
}

#studio > .practice-recovery {
  padding: 12px 32px 0;
  color: var(--ink-soft);
  line-height: 1.55;
}

#studio > .practice-recovery .text-action { color: var(--maroon-800); }

#studio > .retry-plan {
  max-width: calc(var(--max) - 64px);
  padding: 16px 20px;
  margin: 18px auto 0;
  border-left: 3px solid var(--maroon-800);
  background: var(--paper-2);
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

/* One clinical folio beside one working clock. */
#studio > .studio-grid {
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .7fr);
  gap: 32px;
  padding: 28px 32px 52px;
}

#studio .studio-grid > * { min-width: 0; }

#studio .studio-grid .case-card {
  padding: clamp(24px, 3vw, 42px);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--paper-3);
  border-left: 5px solid var(--maroon-800);
  box-shadow: 4px 4px 0 var(--paper-2), 5px 5px 0 var(--paper-3), 0 15px 30px rgba(33, 6, 13, .12);
}

#studio .studio-grid .case-topline {
  flex-wrap: wrap;
  gap: 7px 16px;
  padding-bottom: 12px;
  color: var(--maroon-800);
  border-bottom: 3px double var(--paper-3);
  letter-spacing: .1em;
}

#studio .studio-grid .case-family {
  margin: 16px 0 8px;
  color: var(--ink-soft);
  line-height: 1.45;
}

#studio .studio-grid .case-card h2 {
  margin: 12px 0 20px;
  max-width: 25ch;
  font-size: clamp(1.65rem, 2.55vw, 2.8rem);
  line-height: 1.14;
}

#studio .studio-grid .case-warning {
  color: var(--ink-soft);
  border-left: 2px solid var(--wine);
  padding: 10px 14px;
  background: var(--paper-2);
  font-size: .8rem;
  line-height: 1.6;
}

#studio .studio-grid .case-data { margin: 24px 0; }
#studio .studio-grid .case-data div { grid-template-columns: minmax(105px, .3fr) minmax(0, 1fr); gap: 14px; padding: 15px 0; }
#studio .studio-grid .case-data dt { color: var(--maroon-800); line-height: 1.6; letter-spacing: .06em; }
#studio .studio-grid .case-data dd { font-size: 1.06rem; line-height: 1.6; }

#studio .studio-grid .setup-placeholder {
  padding: 20px;
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  box-shadow: inset 0 0 0 4px var(--paper), inset 0 0 0 5px var(--paper-3);
}

#studio .studio-grid .setup-placeholder span { color: var(--maroon-800); }
#studio .studio-grid .setup-placeholder strong { font-size: 1.3rem; line-height: 1.2; }
#studio .studio-grid .setup-placeholder p { line-height: 1.6; }

/* A restrained chronometer case, not a simulated historical measuring device. */
#studio .studio-grid .case-instrument {
  position: sticky;
  top: 90px;
  padding: 26px;
  color: var(--paper);
  background: linear-gradient(125deg, var(--maroon-800), var(--maroon-950) 75%);
  border: 1px solid var(--paper-3);
  border-radius: 6px;
  box-shadow: inset 0 0 0 5px var(--maroon-950), inset 0 0 0 6px var(--paper-3), 0 16px 30px rgba(33, 6, 13, .2);
}

#studio .studio-grid .instrument-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  border-bottom: 1px solid var(--paper-3);
  padding-bottom: 20px;
}

#studio .studio-grid .instrument-head > div { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 6px 12px; }
#studio .studio-grid .instrument-head .eyebrow { margin: 0; color: var(--paper-2); }
#studio .studio-grid .instrument-head h2 { font-size: 1.4rem; line-height: 1.25; }

#studio .studio-grid .clock {
  font-family: var(--serif);
  display: block;
  min-width: 0;
  padding: 18px 8px;
  color: var(--ink);
  background: var(--paper);
  border: 5px double var(--paper-3);
  border-radius: 3px;
  font-size: clamp(2.5rem, 4vw, 4.4rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.055em;
  text-align: center;
  line-height: 1.15;
}

#studio .studio-grid .physical-cue { min-height: 0; margin: 20px 0; font-size: 1.08rem; line-height: 1.55; }
#studio .studio-grid .case-control { min-height: 52px; color: var(--ink); background: var(--coral-bright); border: 1px solid var(--coral-bright); font-weight: 750; letter-spacing: .06em; }
#studio .studio-grid .case-control:hover { color: var(--ink); background: var(--paper); border-color: var(--paper); }
#studio .studio-grid .case-control.is-running { color: var(--ink); background: var(--paper); border-color: var(--paper); box-shadow: inset 0 -4px 0 var(--coral); }
#studio .studio-grid .case-control:disabled { color: var(--paper-2); background: var(--maroon-950); border-color: var(--paper-3); opacity: 1; }
#studio .studio-grid .instrument-boundary { color: var(--paper-2); font-size: .77rem; line-height: 1.6; }

/* The stopped-attempt folio and the doorway to the Gallery. */
#studio > .attempt-review {
  padding: clamp(24px, 4vw, 54px);
  background: var(--paper);
  border: 1px solid var(--paper-3);
  border-top: 5px double var(--maroon-800);
  box-shadow: 5px 5px 0 var(--paper-2), 6px 6px 0 var(--paper-3), 0 20px 42px rgba(33, 6, 13, .1);
}

#studio > .attempt-review .review-heading { gap: 26px; padding-bottom: 26px; border-bottom: 3px double var(--paper-3); }
#studio > .attempt-review .review-heading h2 { font-size: clamp(1.9rem, 3.5vw, 3.2rem); line-height: 1.1; }
#studio > .attempt-review .eyebrow { color: var(--maroon-800); }
#studio > .attempt-review .score-block { min-width: 145px; padding-left: 24px; border-color: var(--paper-3); }
#studio > .attempt-review .score-block output { font-size: 3.2rem; font-variant-numeric: tabular-nums; }
#studio > .attempt-review .score-block span { display: block; max-width: 150px; line-height: 1.5; }
#studio > .attempt-review .checklist-gate { border: 1px solid var(--paper-3); background: var(--paper-2); margin: 24px 0; }
#studio > .attempt-review .checklist-gate span { color: var(--maroon-800); }
#studio > .attempt-review .checklist-gate h3 { font-size: 1.45rem; line-height: 1.2; }
#studio > .attempt-review .action-list label { grid-template-columns: 24px minmax(0, 1fr); gap: 14px; padding: 17px 0; }
#studio > .attempt-review .action-list b { font-size: 1.13rem; line-height: 1.35; }
#studio > .attempt-review .action-list small { margin-top: 5px; line-height: 1.5; }
#studio > .attempt-review :is(textarea, input) { accent-color: var(--maroon-800); }
#studio > .attempt-review textarea { width: 100%; max-width: 100%; padding: 16px; color: var(--ink); background: var(--paper); border: 1px solid var(--ink-soft); border-left: 4px double var(--wine); border-radius: 0; font-family: var(--sans); line-height: 1.6; }
#studio > .attempt-review textarea::placeholder { color: var(--ink-soft); opacity: 1; }
#studio > .attempt-review .checkpoint-objectives { border-bottom: 1px solid var(--paper-3); }
#studio > .attempt-review .checkpoint-objectives li { line-height: 1.65; }

#studio > .attempt-review .debrief-threshold {
  margin-top: 36px;
  padding: clamp(24px, 3.5vw, 44px);
  gap: 26px;
  grid-template-columns: minmax(0, 1fr) 44px minmax(220px, .8fr);
  background: linear-gradient(105deg, var(--maroon-950), var(--maroon-800));
  border: 4px double var(--paper-3);
  box-shadow: inset 0 0 0 7px var(--maroon-950);
  overflow: visible;
}

#studio > .attempt-review .debrief-threshold::before { inset: 9px; border-color: var(--line-light); }
#studio > .attempt-review .debrief-threshold .eyebrow { color: var(--paper-2); }
#studio > .attempt-review .debrief-threshold h3 { font-size: clamp(1.8rem, 2.8vw, 2.6rem); line-height: 1.12; }
#studio > .attempt-review .debrief-threshold-copy > p:last-child { color: var(--paper); line-height: 1.55; }
#studio > .attempt-review .threshold-case { margin-top: 20px; color: var(--paper-2); }
#studio > .attempt-review .threshold-marker { color: var(--paper-2); }
#studio > .attempt-review .threshold-marker span:last-child { color: var(--paper); }
#studio > .attempt-review .threshold-marker i { background: var(--paper-3); min-height: 80px; }
#studio > .attempt-review .debrief-entry { min-height: 144px; padding: 22px; gap: 15px; color: var(--ink); background: var(--paper); border: 4px double var(--paper-3); box-shadow: 4px 4px 0 var(--maroon-950); }
#studio > .attempt-review .debrief-entry:hover { transform: none; background: var(--paper-2); }
#studio > .attempt-review .debrief-entry small { color: var(--maroon-800); }
#studio > .attempt-review .debrief-entry strong { font-size: clamp(1.35rem, 2vw, 1.9rem); line-height: 1.18; }

/* The educator's desk: reference index at left, observation folios at right. */
#coach > .coach-shell {
  padding: 42px 32px 72px;
  grid-template-columns: minmax(240px, .32fr) minmax(0, 1fr);
  gap: 40px;
}

#coach .coach-console {
  top: 90px;
  padding: 25px;
  color: var(--paper);
  background: var(--maroon-950);
  border: 5px double var(--paper-3);
  box-shadow: 0 14px 28px rgba(33, 6, 13, .18);
}

#coach .coach-console .eyebrow,
#coach .coach-status span,
#coach .coach-status small { color: var(--paper-2); }
#coach .coach-case-picker { gap: 8px; }
#coach .coach-case-picker button { min-height: 48px; padding: 12px; color: var(--paper); background: transparent; border: 1px solid var(--line-light); font-family: var(--serif); font-size: 1.05rem; line-height: 1.3; }
#coach .coach-case-picker button.is-selected { color: var(--ink); background: var(--paper); border-color: var(--paper-3); box-shadow: inset 3px 0 0 var(--wine); }
#coach .coach-status { border-color: var(--paper-3); }
#coach .coach-status strong { color: var(--paper); font-size: 1.45rem; line-height: 1.22; }
#coach .coach-clock { display: block; padding: 12px; margin-top: 20px; color: var(--ink); background: var(--paper); border: 4px double var(--paper-3); font-variant-numeric: tabular-nums; font-size: clamp(2.1rem, 3vw, 3rem); text-align: center; line-height: 1.2; }
#coach #coachRun { min-height: 48px; color: var(--ink); background: var(--coral-bright); border-color: var(--coral-bright); }
#coach .coach-step { grid-template-columns: 42px minmax(0, 1fr); gap: 24px; padding: 30px 28px; margin: 0 0 28px; color: var(--ink); background: var(--paper); border: 1px solid var(--paper-3); border-top: 3px double var(--maroon-800); box-shadow: 4px 4px 0 var(--paper-2), 5px 5px 0 var(--paper-3); }
#coach .step-number { color: var(--maroon-800); font-family: var(--serif); font-size: 2.15rem; }
#coach .coach-step h2 { font-size: clamp(1.55rem, 2.6vw, 2.6rem); line-height: 1.17; }
#coach .coach-step p { line-height: 1.6; }
#coach .coach-step .eyebrow { color: var(--maroon-800); }
#coach .observation-grid { gap: 0; border-top: 1px solid var(--paper-3); }
#coach .observation-grid label { background: transparent; border-bottom: 1px solid var(--paper-3); padding: 15px 12px; min-height: 48px; }
#coach .observation-grid input { accent-color: var(--maroon-800); }
#coach .cue-controls { flex-wrap: wrap; gap: 8px; }
#coach .cue-controls button,
#coach .reveal-control { min-height: 44px; max-width: 100%; padding: 11px 14px; color: var(--maroon-800); background: var(--paper-2); border: 1px solid var(--paper-3); line-height: 1.4; }
#coach .cue-controls button.is-selected { color: var(--paper); background: var(--maroon-800); }
#coach .cue-readout,
#coach .reveal-copy { color: var(--ink); background: var(--paper-2); border-left: 3px solid var(--wine); padding: 16px; }
#coach .review-gate { margin: 24px 0; background: var(--paper-2); border-color: var(--paper-3); }
#coach .review-gate span { color: var(--maroon-800); }

:is(#studio > .studio-arrival, #studio > .case-selector, #studio > .case-path, #studio > .practice-recovery, #studio > .studio-grid, #studio > .attempt-review, #coach) :focus-visible {
  outline: 3px solid var(--paper);
  outline-offset: 1px;
  box-shadow: 0 0 0 5px var(--maroon-800);
}

#studio > .case-path button:focus-visible { outline-color: var(--maroon-800); outline-offset: -3px; box-shadow: none; }

@media (max-width: 1000px) {
  #studio > .studio-grid { gap: 24px; grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr); }
  #studio > .attempt-review .debrief-threshold { grid-template-columns: minmax(0, 1fr) minmax(210px, .8fr); }
  #studio > .attempt-review .threshold-marker { display: none; }
  #studio > .attempt-review .debrief-entry { grid-column: auto; }
  #coach > .coach-shell { gap: 26px; grid-template-columns: minmax(215px, .36fr) minmax(0, 1fr); }
  #coach .coach-step { grid-template-columns: 28px minmax(0, 1fr); gap: 16px; padding: 26px 22px; }
}

@media (max-width: 760px) {
  #studio > .studio-arrival,
  #coach > .studio-arrival { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 22px 20px; }
  #studio > .studio-arrival .return-gallery,
  #coach > .studio-arrival .return-gallery { justify-self: start; }
  #studio > .case-selector { padding: 12px 20px 8px; }
  #studio > .case-selector button { flex: 1 1 84px; min-width: 0; text-align: center; padding: 9px 10px; }
  #studio > .case-path { padding-inline: 20px; gap: 20px; }
  #studio > .practice-recovery { padding-inline: 20px; }
  #studio > .retry-plan { margin-inline: 20px; }
  #studio > .studio-grid { grid-template-columns: minmax(0, 1fr); padding: 22px 20px 40px; gap: 26px; }
  #studio .studio-grid .case-instrument { position: static; }
  #studio .studio-grid .clock { font-size: 3.1rem; }
  #studio > .attempt-review { margin-inline: 20px; padding: 24px 20px; }
  #studio > .attempt-review .review-heading { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  #studio > .attempt-review .score-block { border: 0; border-top: 1px solid var(--paper-3); padding: 18px 0 0; min-width: 0; }
  #studio > .attempt-review .debrief-threshold { grid-template-columns: minmax(0, 1fr); padding: 24px 20px; gap: 22px; }
  #studio > .attempt-review .debrief-entry { min-height: 116px; padding: 18px; }
  #coach > .coach-shell { grid-template-columns: minmax(0, 1fr); gap: 28px; padding: 28px 20px 54px; }
  #coach .coach-console { position: static; }
  #coach .coach-step { padding: 24px 20px; }
  #coach .observation-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 390px) {
  #studio > .studio-arrival,
  #coach > .studio-arrival { padding-inline: 16px; }
  #studio > .studio-arrival .lede,
  #coach > .studio-arrival .lede { font-size: 1rem; }
  #studio > .case-selector,
  #studio > .case-path,
  #studio > .practice-recovery { padding-inline: 16px; }
  #studio > .studio-grid { padding-inline: 16px; }
  #studio .studio-grid .case-card { padding: 22px 17px; }
  #studio .studio-grid .case-data div { grid-template-columns: minmax(0, 1fr); gap: 5px; }
  #studio .studio-grid .case-instrument { padding: 24px 20px; }
  #studio > .attempt-review { margin-inline: 16px; padding: 22px 16px; }
  #studio > .attempt-review .debrief-threshold { padding: 22px 14px; }
  #studio > .attempt-review .debrief-entry { grid-template-columns: minmax(0, 1fr) auto; padding: 16px 12px; }
  #studio > .attempt-review .debrief-entry strong { font-size: 1.35rem; }
  #coach > .coach-shell { padding-inline: 16px; }
  #coach .coach-console { padding: 20px 17px; }
  #coach .coach-step { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 24px 18px; }
  #coach .step-number { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  #studio > .attempt-review .debrief-entry { transition: none; }
}