/* ============================================================
   SOMA.TONE · SM-01
   Materials: void, trace, plate, phosphor. Nothing else.
   ============================================================ */

:root {
  /* ground */
  --void:        #141218;
  --void-warm:   #18151d;
  --plate:       #1c1922;
  --rule:        #2b2733;
  --rule-soft:   #242028;
  /* ink */
  --ivory:       #e6e1d3;
  --ivory-dim:   #a39e91;
  --ash:         #6c675f;
  /* pigments */
  --copper:      #6fa08c;
  --dust-blue:   #7e94ad;
  --amber:       #c4a06a;
  --sage:        #98a683;
  --smoke:       #8d7d9d;
  --iron:        #a35f4d;

  --mono: "IBM Plex Mono", "Input Mono", "Berkeley Mono", monospace;
  --type-micro: 9px;
  --type-label: 10px;
  --type-control: 11px;
  --type-value: 14px;
  --type-title: 17px;
}

* { margin: 0; padding: 0; box-sizing: border-box; border-radius: 0; }

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--void);
  color: var(--ivory);
  font-family: var(--mono);
  font-weight: 300;
  font-size: 12px;
  -webkit-font-smoothing: antialiased;
}

body {
  display: flex;
  flex-direction: column;
}

/* ---------------- masthead ---------------- */

#masthead {
  height: 48px;
  flex: 0 0 48px;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 16px;
  border-bottom: 1px solid var(--rule);
  background: var(--void-warm);
}

.wordmark {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.35em;
  color: var(--ivory);
  white-space: nowrap;
}
.wordmark .dot { color: var(--amber); }

.mast-readouts {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.readout { display: flex; flex-direction: column; gap: 2px; min-width: 72px; }
.ro-label {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--ash);
}
.ro-value {
  font-size: 13px;
  font-weight: 300;
  color: var(--ivory-dim);
  font-variant-numeric: tabular-nums;
}

.doc-ref {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--ash);
  white-space: nowrap;
}

/* ---------------- rack ---------------- */

#rack {
  flex: 1;
  display: flex;
  min-height: 0;
  /* a flex item defaults to min-width:auto and refuses to shrink below its
     content — which pushed the rails off the bench on a narrow window. This
     one line is the parent of most of the desktop clipping. */
  min-width: 0;
}

/* ---- lens rail ---- */

#lens-rail {
  /* it may shrink under pressure, but never past readability */
  flex: 0 1 168px;
  min-width: 120px;
  border-right: 1px solid var(--rule);
  background: var(--void-warm);
  display: flex;
  flex-direction: column;
  padding: 16px 0;
}

#lens-grip {
  flex: 0 0 6px;
  cursor: ew-resize;
  background: linear-gradient(to right, transparent 2px, var(--rule) 2px, var(--rule) 3px, transparent 3px);
  touch-action: none;
  outline: none;
}
#lens-grip:hover, #lens-grip:focus-visible, #lens-grip.dragging {
  background: linear-gradient(to right, transparent 2px, var(--amber) 2px, var(--amber) 3px, transparent 3px);
}

.rail-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--ash);
  padding: 0 16px 12px;
}

/* thirteen lenses now — the list scrolls before it ever clips the rail foot */
#lens-list {
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}

.lens-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-left: 2px solid transparent;
  font-family: var(--mono);
  padding: 9px 16px 9px 14px;
  cursor: pointer;
  color: var(--ivory-dim);
}
.lens-item:hover { color: var(--ivory); }
.lens-item .li-id {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--ash);
  display: block;
}
.lens-item .li-name {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.22em;
  display: block;
  margin-top: 2px;
}
.lens-item.active {
  border-left-color: var(--amber);
  color: var(--ivory);
}
.lens-item.active .li-id { color: var(--amber); }

.rail-foot { margin-top: auto; padding: 16px; }
.annotation {
  font-size: 9px;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--ash);
}
.desktop-status {
  position: fixed;
  z-index: 120;
  top: 62px;
  right: 18px;
  max-width: min(440px, calc(100vw - 36px));
  padding: 9px 12px;
  border: 1px solid var(--rule);
  background: var(--plate);
  color: var(--ivory-dim);
  font-size: 9px;
  letter-spacing: 0.08em;
}
.desktop-status[data-kind='error'] { border-color: var(--iron); color: var(--ivory); }
.desktop-status[data-kind='ok'] { border-color: var(--amber); }
.ds-detail {
  display: block;
  margin-top: 4px;
  color: var(--ash);
  font-size: 9px;
  letter-spacing: 0.1em;
}
.ds-action {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  margin-left: 12px;
  padding: 3px 8px;
  background: none;
  border: 1px solid var(--amber);
  color: var(--amber);
  cursor: pointer;
}
.ds-action:hover { background: color-mix(in srgb, var(--amber) 14%, transparent); }
.recent-sessions { display: grid; gap: 4px; margin: 12px 0 6px; }
.recent-session { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.recent-session .plate-btn { flex: 1; text-align: left; }
.recent-session[data-missing='true'] { opacity: 0.55; }

/* ---- aperture ---- */

#aperture-frame {
  flex: 1;
  position: relative;
  min-width: 0;
  background: var(--void);
}

#aperture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}

.reg-mark {
  position: absolute;
  width: 12px;
  height: 12px;
  pointer-events: none;
}
.reg-mark::before, .reg-mark::after {
  content: "";
  position: absolute;
  background: var(--rule);
}
.reg-mark::before { width: 12px; height: 1px; }
.reg-mark::after  { width: 1px;  height: 12px; }
.rm-tl { top: 12px; left: 12px; }
.rm-tr { top: 12px; right: 12px; transform: scaleX(-1); }
.rm-bl { bottom: 12px; left: 12px; transform: scaleY(-1); }
.rm-br { bottom: 12px; right: 12px; transform: scale(-1); }

#lens-caption {
  position: absolute;
  left: 32px;
  right: calc(50% + 112px);
  bottom: 24px;
  /* The INSTRUMENT / OBSERVE pair sits centred on this same baseline, so an
     unbounded caption runs underneath it — on CHAIN the measure text was
     printing straight through the buttons. Stop short of the centre instead. */
  display: flex;
  gap: 8px 14px;
  align-items: baseline;
  flex-wrap: wrap;
  pointer-events: none;
}
#lens-caption-id {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--amber);
}
#lens-caption-name {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.25em;
  color: var(--ivory-dim);
}
#lens-caption-measure {
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--ash);
  white-space: normal;
  line-height: 1.35;
  /* the lens name is load-bearing; the gloss moves to a complete second line
     instead of being clipped into an accidental half-sentence */
  flex-basis: 100%;
  min-width: 0;
}
/* an observe-only lens says so, deadpan — a silently dead surface is a lie */
#lens-caption-observed {
  font-size: 8px;
  letter-spacing: 0.16em;
  color: var(--ash);
  border: 1px solid var(--rule-soft);
  padding: 2px 6px;
  white-space: nowrap;
}
#lens-caption-observed[hidden] { display: none; }
/* ---- desktop pressure, not a mobile layout ----
   Windows scaling shrinks the CSS viewport: a 1080p screen is 1536 px at 125%
   and 1280 px at 150%. These steps let the bench yield in that range instead
   of colliding. Nothing is rearranged — things give up room in a set order:
   the masthead's breathing space, then the doc-ref, then label widths. */
@media (max-width: 1400px) {
  .mast-readouts { gap: 18px; }
}
@media (max-width: 1200px) {
  .doc-ref { display: none; }              /* the plate line yields first */
  .mast-readouts { gap: 14px; }
  .readout { min-width: 60px; }
  .spine-block { padding: 8px 10px; }      /* buys the MIX value its room */
  .sb-v { font-size: 12px; }
}
@media (max-width: 1040px) {
  .mast-readouts { gap: 10px; }
  .readout { min-width: 52px; }
  .ro-value { font-size: 12px; }
  .spine-drawer-k, .spine-step-k { min-width: 64px; }
  .bench-pages { padding-left: 8px; padding-right: 8px; }
  .bench-page { letter-spacing: 0.06em; }   /* the five pages keep their names */
  /* At the 960 CSS-pixel Windows case the left half is too narrow to carry a
     complete caption beside the stance. Give it the full row above instead. */
  #lens-caption { right: 32px; bottom: 48px; }
}
@media (max-width: 900px) {
  #lens-caption-measure { display: none; }
}

/* ---- control rail ---- */

/* the grip: drag to give the rail more bench, Ableton-style */
#rail-grip {
  flex: 0 0 6px;
  cursor: ew-resize;
  background: linear-gradient(to right, transparent 2px, var(--rule) 2px, var(--rule) 3px, transparent 3px);
  touch-action: none;
}
#rail-grip:hover, #rail-grip.dragging {
  background: linear-gradient(to right, transparent 2px, var(--amber) 2px, var(--amber) 3px, transparent 3px);
}

#control-rail {
  flex: 0 1 248px;
  min-width: 200px;
  border-left: none;
  background: var(--void-warm);
  overflow-y: auto;
  /* CSS computes overflow-x:visible to auto when the other axis is not
     visible — which is where the rail's horizontal scrollbar came from.
     Say it explicitly; rows compress instead of scrolling sideways. */
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}

/* foldable sections: the label is the fold, like a device header */
.ctl-section-label { cursor: pointer; user-select: none; }
.ctl-section-label .fold-mark {
  color: var(--ash);
  font-size: 8px;
  margin-right: 6px;
}
.ctl-section.collapsed > :not(.ctl-section-label) { display: none; }
.ctl-section.collapsed .ctl-section-label { opacity: 0.75; }

#controls { padding: 16px; display: flex; flex-direction: column; gap: 24px; }
#instrument-controls { display: none; }
#controls, #instrument-controls { min-width: 0; width: 100%; }

/* ---- the paged bench: five surfaces, not one scroll ---- */
/* the bar rides the top of the rail; each page shows only its own family */
.bench-pages {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  gap: 0;
  margin: -16px -16px 0;
  padding: 10px 12px 0;
  background: var(--void-warm);
  border-bottom: 1px solid var(--rule);
}
.bench-page {
  flex: 1;
  min-width: 0;
  /* min-width:0 lets the BOX shrink, but the label's min-content width still
     forced the strip past the rail — which is what made the tabs collide.
     Let the text truncate and the five pages always fit. */
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.04em;   /* all five page names fit the rail without truncating */
  color: var(--ash);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 6px 1px 8px;
  cursor: pointer;
}
.bench-page:hover { color: var(--ivory-dim); }
.bench-page.active {
  color: var(--ivory);
  border-bottom-color: var(--amber);
}
.bench-page-note { margin: -14px 0 -12px; min-height: 12px; }

/* a section sits on exactly one page */
#controls[data-page="play"]   > .ctl-section:not([data-page="play"]),
#controls[data-page="voices"] > .ctl-section:not([data-page="voices"]),
#controls[data-page="chain"]  > .ctl-section:not([data-page="chain"]),
#controls[data-page="field"]  > .ctl-section:not([data-page="field"]),
#controls[data-page="bank"]   > .ctl-section:not([data-page="bank"]) { display: none; }

/* middle depth: one lens, three to five nearby controls, full truth caveats */
body.instrument #controls { display: none; }
body.instrument #instrument-controls {
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
body.instrument #control-rail { flex-basis: 272px !important; }
body.instrument #rail-grip { cursor: default; opacity: 0.45; pointer-events: none; }
.instrument-depth-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--rule);
}
.instrument-depth-title {
  color: var(--ivory);
  font-size: 11px;
  letter-spacing: .22em;
}
/* the selection readout (rule 1): one control — name, value, unit — and
   the caveat it can never be separated from */
.id-selected {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 12px 10px;
  background: var(--plate);
  border: 1px solid var(--rule-soft);
  margin-bottom: 4px;
}
.id-sel-name {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--ash);
}
.id-sel-valuerow { display: flex; align-items: baseline; gap: 8px; }
.id-sel-value {
  font-size: 28px;
  font-weight: 200;
  letter-spacing: 0;
  color: var(--ivory);
  font-variant-numeric: tabular-nums;
}
.id-sel-unit {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--ash);
}
.id-selected .tier-tag { align-self: flex-start; }

/* a control row: the drawn bar IS the handle (rule 5) — press-drag catches */
.id-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 2px 0;
  cursor: ew-resize;
  touch-action: none;
  outline: none;
}
.id-label {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--ash);
  width: 64px;
  flex: 0 0 64px;
}
.id-row.selected .id-label { color: var(--ivory-dim); }
.id-track {
  position: relative;
  flex: 1;
  height: 14px;
  border-bottom: 1px solid var(--rule);
}
.id-fill {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 1px;
  background: var(--ivory-dim);
  opacity: 0.55;
}
.id-row.selected .id-fill { background: var(--amber); opacity: 0.8; }
.id-mark {
  position: absolute;
  bottom: -7px;
  width: 3px;
  height: 13px;
  margin-left: -1px;
  background: var(--ivory-dim);
}
.id-row.selected .id-mark { background: var(--ivory); }
.id-row.caught .id-mark { background: var(--amber); }
.id-row:focus-visible .id-label { color: var(--ivory); }
.id-val {
  font-size: 9px;
  color: var(--ivory-dim);
  flex: 0 0 56px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.id-foot { padding-top: 8px; border-top: 1px solid var(--rule-soft); }

.ctl-section { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.ctl-section-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--ash);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-soft);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

/* provenance chip: the epistemic weight, engraved small */
.tier-tag {
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--ash);
  border: 1px solid var(--rule-soft);
  padding: 2px 5px;
  white-space: nowrap;
  cursor: help;
  flex: 0 0 auto;
}
.tier-tag:hover { color: var(--ivory-dim); border-color: var(--rule); }

/* experiences: the one-tap binaural door */
/* Three columns only while three columns fit. At 248 px of rail each cell is
   ~72 px, and SCHUMANN needs ~68 px before padding — so the longest names were
   being cut to SCHUMAN and CONCENT. auto-fit drops to two columns rather than
   clipping, and the rail is user-resizable, so a fixed count could never be
   right at every width. */
.beat-grid.experience-grid { grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); }
.experience-btn {
  display: flex;
  flex-direction: column;
  gap: 3px;
  align-items: flex-start;
  font-family: var(--mono);
  background: var(--plate);
  border: 1px solid var(--rule);
  color: var(--ivory-dim);
  padding: 8px;
  cursor: pointer;
}
.experience-btn:hover { color: var(--ivory); border-color: var(--amber); }
.experience-btn .xp-name {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  /* a name that still cannot fit wraps rather than losing its last letters —
     a truncated CONCENT reads as a different word, not as a narrow column */
  overflow-wrap: anywhere;
  min-width: 0;
}
.experience-btn .xp-band {
  font-size: 8px;
  letter-spacing: 0.06em;
  color: var(--ash);
  font-variant-numeric: tabular-nums;
}
.xp-catalogue-link {
  display: block;
  margin-top: 10px;
  text-align: center;
  text-decoration: none;
}

/* the preview bench under the experience grid */
.xp-preview {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-top: 8px;
  padding: 8px 10px;
  background: var(--void-warm);
  border: 1px solid var(--rule-soft);
  border-left: 1px solid var(--amber);
  min-height: 34px;
}
.xp-preview .xp-prev-head {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--ivory-dim);
  font-variant-numeric: tabular-nums;
}
.xp-preview .xp-prev-note {
  font-size: 9px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--ash);
}

/* TRANSPOSE — the master pitch readouts */
.xpose-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 8px 0 6px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
}
.xpose-kv {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px;
  padding: 6px 8px;
  background: var(--void-warm);
}
.xpose-kv .xpose-k {
  font-size: 8px;
  letter-spacing: 0.18em;
  color: var(--ash);
}
.xpose-kv .xpose-v {
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ivory-dim);
  font-variant-numeric: tabular-nums;
}

/* the input meter */
.input-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 9px;
  margin: 6px 0 4px;
  color: var(--ash);
  font-size: var(--type-label);
  letter-spacing: .08em;
}
.input-flow span { white-space: nowrap; }
.input-device {
  width: 100%;
  margin: 7px 0 5px;
  padding: 7px 8px;
  border: 1px solid var(--rule);
  background: var(--plate);
  color: var(--ivory-dim);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.07em;
}
.input-device:disabled { color: var(--ash); }
.input-active-source {
  margin-bottom: 7px;
  color: var(--ash);
  font-size: var(--type-label);
  letter-spacing: .1em;
}
.input-active-source[data-armed='true'] { color: var(--amber); }
.input-file-record {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin: 7px 0;
  padding-top: 7px;
  border-top: 1px solid var(--rule-soft);
}
.input-file-record-label {
  margin-right: auto;
  color: var(--ash);
  font-size: var(--type-label);
  letter-spacing: .12em;
}
/* HELD INPUT CAPTURE — a clear present/absent badge for the live capture */
.held-badge {
  margin: 8px 0 2px;
  padding: 4px 8px;
  font-size: var(--type-label);
  letter-spacing: .12em;
  border: 1px dashed var(--rule);
  color: var(--ash);
}
.held-badge[data-held='true'] {
  border-style: solid;
  border-color: var(--amber);
  color: var(--amber);
}
/* USE AS SPACE lives under an advanced, experimental disclosure */
.input-advanced { margin: 8px 0; }
.input-advanced > summary {
  cursor: pointer;
  color: var(--ash);
  font-size: var(--type-label);
  letter-spacing: .14em;
  padding: 3px 0;
}
.input-advanced > summary:hover { color: var(--ivory-dim); }
.input-advanced .annotation { margin-top: 4px; }
.input-place-guide { display: grid; gap: 5px; margin: 8px 0; }
.input-place-guide span { color: var(--ash); font-size: var(--type-label); line-height: 1.45; }
.input-place-guide b { color: var(--ivory-dim); font-weight: 500; letter-spacing: .12em; }
.in-meter {
  position: relative;
  height: 8px;
  margin: 8px 0 4px;
  background: var(--plate);
  border: 1px solid var(--rule);
}
.in-meter-fill {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0;
  background: var(--amber);
  opacity: 0.75;
  transition: width 0.06s linear;
}
.in-meter-db {
  position: absolute;
  right: 4px;
  top: -1px;
  font-size: 8px;
  letter-spacing: 0.06em;
  color: var(--ash);
  font-variant-numeric: tabular-nums;
}

/* voice block */
.voice { display: flex; flex-direction: column; gap: 7px; padding: 10px; border: 1px solid var(--rule-soft); background: var(--plate); }
.voice-head { display: flex; align-items: center; justify-content: space-between; }
.voice-id { font-size: 9px; letter-spacing: 0.18em; color: var(--ivory-dim); }

.toggle {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ash);
  padding: 3px 8px;
  cursor: pointer;
}
.toggle[data-on="true"] { color: var(--amber); border-color: var(--amber); }

.freq-row { display: flex; align-items: baseline; gap: 6px; }
.freq-value {
  font-size: 16px;
  font-weight: 300;
  color: var(--ivory);
  font-variant-numeric: tabular-nums;
  flex: 1;
}
.freq-unit { font-size: 9px; letter-spacing: 0.14em; color: var(--ash); }
.stepper {
  font-family: var(--mono);
  font-size: 11px;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ivory-dim);
  width: 22px; height: 22px;
  cursor: pointer;
  line-height: 1;
}
.stepper:hover { color: var(--ivory); border-color: var(--ash); }

.wave-row { display: flex; gap: 4px; }
.wave-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
}
.suite-waves { flex: 1; }

.fam-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.suite-list {
  max-height: 176px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}
.suite-list .preset-btn { gap: 8px; }
.suite-list .preset-btn span:first-child { white-space: nowrap; }
.suite-list .preset-btn .pf {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: right;
}

.tap-btn { flex: 0 0 auto; padding: 5px 10px; }
.tap-btn.beat { animation: beatflash 0.28s ease-out; }
.tap-btn.beat-accent { animation: beatflash-accent 0.34s ease-out; }
@keyframes beatflash {
  0% { color: #7e94ad; border-color: #7e94ad; }
  100% { color: #6c675f; border-color: #2b2733; }
}
@keyframes beatflash-accent {
  0% { color: #c4a06a; border-color: #c4a06a; }
  100% { color: #6c675f; border-color: #2b2733; }
}

.pitch-value { font-size: 13px; flex: 0 0 auto; min-width: 52px; text-align: center; }

.suite-readout {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  padding: 6px 2px 0;
  min-height: 14px;
}
.wave-btn {
  flex: 1;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ash);
  padding: 4px 0;
  cursor: pointer;
}
.wave-btn.active { color: var(--ivory); border-color: var(--ash); background: var(--void); }

.slider-row { display: flex; align-items: center; gap: 8px; }
.slider-label { font-size: 9px; letter-spacing: 0.14em; color: var(--ash); width: 34px; }
/* transpose labels size to content (SEMITONES is wider than a fixed 34px) */
.xpose-label { font-size: 9px; letter-spacing: 0.14em; color: var(--ash); flex: 1; white-space: nowrap; }
.slider-val { font-size: 9px; color: var(--ivory-dim); width: 34px; text-align: right; font-variant-numeric: tabular-nums; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  min-width: 0;
  width: 100%;
  height: 14px;
  background: transparent;
  cursor: ew-resize;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 1px;
  background: var(--rule);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 3px;
  height: 13px;
  margin-top: -6px;
  background: var(--ivory-dim);
}
input[type="range"]::-moz-range-track { height: 1px; background: var(--rule); }
input[type="range"]::-moz-range-thumb {
  width: 3px; height: 13px; border: none; border-radius: 0;
  background: var(--ivory-dim);
}

/* breath */
.ratio-row { display: flex; gap: 4px; }
.ratio-btn {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ash);
  padding: 5px 0;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
}
.ratio-btn.active { color: var(--dust-blue); border-color: var(--dust-blue); }
.seance-protocol-grid,
.pandora-bank-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.ctl-section .plate-actions .plate-btn {
  flex: 1;
  min-width: 0;
  padding-left: 6px;
  padding-right: 6px;
  letter-spacing: 0.12em;
}
.slider-row > .slider-label {
  flex: 0 0 68px;
  width: 68px;
}

.beat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px;
}
.beat-grid .ratio-btn { font-variant-numeric: tabular-nums; }
.beat-grid .ratio-btn.active { color: var(--copper); border-color: var(--copper); }

.breath-meter {
  height: 3px;
  background: var(--rule-soft);
  position: relative;
  overflow: hidden;
}
.breath-meter-fill {
  position: absolute;
  inset: 0;
  transform-origin: left;
  background: var(--dust-blue);
  opacity: 0.7;
}

/* presets */
.preset-list { display: flex; flex-direction: column; }
.preset-btn {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--mono);
  background: none;
  border: none;
  border-bottom: 1px solid var(--rule-soft);
  color: var(--ivory-dim);
  padding: 6px 2px;
  cursor: pointer;
  font-size: 10px;
  letter-spacing: 0.12em;
}
.preset-btn:hover { color: var(--ivory); }
.preset-btn.active { color: var(--amber); }
.preset-btn .pf {
  font-size: 9px;
  color: var(--ash);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

/* ---------------- transport ---------------- */

/* ---------------- the signal trace ---------------- */
#scope-strip {
  flex: 0 0 22px;
  padding: 0 16px 2px;
  background: var(--void-warm);
}
#scope {
  display: block;
  width: 100%;
  height: 20px;
  border: 1px solid var(--rule-soft);
  border-bottom: none;
  background: var(--void);
}

/* ---------------- THE SPINE ---------------- */
/* what is SET. Five always-visible blocks; a small drawer opens upward. */
#spine {
  flex: 0 0 58px;
  display: flex;
  align-items: stretch;
  gap: 1px;
  padding: 0 16px 8px;
  background: var(--void-warm);
  border-top: 1px solid var(--rule);
}

.spine-cell {
  position: relative;         /* anchors the drawer that opens upward */
  flex: 1;
  display: flex;
  align-items: stretch;
  min-width: 0;
}
.spine-cell-state { flex: 0 0 auto; gap: 6px; }

/* the readout block — label over value, the whole cell is the affordance */
.spine-block {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  background: var(--plate);
  border: 1px solid var(--rule);
  color: var(--ivory-dim);
  padding: 8px 14px;
  cursor: pointer;
  text-align: left;
  white-space: nowrap;
  transition: border-color 0.2s, color 0.2s;
}
.spine-block:hover { color: var(--ivory); border-color: var(--ash); }
.spine-block[aria-expanded="true"] {
  color: var(--ivory);
  border-color: var(--amber);
  background: color-mix(in srgb, var(--amber) 8%, var(--plate));
}
.sb-col { display: flex; flex-direction: column; gap: 2px; min-width: 0; overflow: hidden; }
.sb-k {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--ash);
}
.sb-v {
  font-size: 13px;
  font-weight: 300;
  color: var(--ivory-dim);
  font-variant-numeric: tabular-nums;
  overflow: hidden;
  text-overflow: ellipsis;
}
.spine-block[aria-expanded="true"] .sb-v { color: var(--ivory); }
/* CAPTURE pulses red while a take or a freeze is being recorded — unmistakable */
.spine-block.recording {
  border-color: var(--iron);
  animation: tapelamp 1.6s ease-in-out infinite;
}
.spine-block.recording .sb-v { color: var(--iron); }

/* STATE keeps the engage lamp + its engaged glow */
.engage-lamp {
  width: 6px; height: 6px;
  background: var(--ash);
  flex: 0 0 auto;
  transition: background 0.4s, box-shadow 0.4s;
}
#engage[data-state="engaged"] { color: var(--ivory); border-color: var(--amber); }
#engage[data-state="engaged"] .engage-lamp {
  background: var(--amber);
  box-shadow: 0 0 8px 1px rgba(196, 160, 106, 0.55);
}

/* ▸ PLAY — arming the keys, kept beside STATE (playing IS a stance) */
.spine-armkey {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.18em;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ivory-dim);
  padding: 0 10px;
  cursor: pointer;
  white-space: nowrap;
}
.spine-armkey:hover { color: var(--ivory); border-color: var(--ash); }
.spine-armkey.confirm { color: var(--copper); border-color: var(--copper); }

/* the drawer that opens upward from a block */
.spine-drawer {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  min-width: 100%;
  width: max-content;
  max-width: min(560px, 60vw);
  background: var(--plate);
  border: 1px solid var(--amber);
  box-shadow: 0 -6px 24px rgba(0, 0, 0, 0.4);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 12;
}
.spine-drawer[hidden] { display: none; }
.spine-drawer.wide { max-width: min(720px, 82vw); right: 0; left: auto; }
.spine-drawer-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.spine-drawer-k {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--ash);
  min-width: 84px;
}
.spine-drawer-hint {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

/* the collapsed cycle — a thin travelling bar on the CAPTURE block itself,
   so loop phase is legible without opening anything */
.sb-phase {
  flex: 0 0 34px;
  height: 2px;
  margin-left: auto;
  background: var(--rule);
  position: relative;
  overflow: hidden;
}
.sb-phase[hidden] { display: none; }
.sb-phase > i {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: var(--amber);
}
#freeze-rings { background: var(--void); border: 1px solid var(--rule-soft); }

/* CLEAR ALL is destructive mid-performance, so it must be HELD, not tapped.
   The fill is the confirmation — you can see the erase coming and let go. */
#loop-clear { position: relative; overflow: hidden; }
#loop-clear::after {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: color-mix(in srgb, var(--iron) 45%, transparent);
  pointer-events: none;
}
#loop-clear.holding { color: var(--iron); border-color: var(--iron); }
#loop-clear.holding::after { width: 100%; transition: width 900ms linear; }
#freeze-level, #freeze-tape-pitch {
  flex: 1;
  min-width: 120px;
  accent-color: var(--amber);
}
#freeze-tape-pitch:disabled { opacity: 0.35; }
.spine-nav-row {
  padding-top: 4px;
  border-top: 1px solid var(--rule-soft);
}
.spine-nav {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------------- the stance switch (near the world) ---------------- */
#stance {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1px;
  z-index: 6;
  opacity: 0.55;
  transition: opacity 0.3s;
}
#aperture-frame:hover #stance, #stance:focus-within { opacity: 1; }
.stance-opt {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  background: color-mix(in srgb, var(--void) 70%, transparent);
  border: 1px solid var(--rule);
  color: var(--ash);
  padding: 5px 12px;
  cursor: pointer;
  white-space: nowrap;
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}
.stance-opt:hover { color: var(--ivory-dim); border-color: var(--ash); }
.stance-opt.active { color: var(--ivory); border-color: var(--amber); }

/* ---------------- spine drawer contents ---------------- */
.spine-step, .spine-slider, .spine-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
}
.spine-step-k {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--ash);
  min-width: 84px;
}
.spine-step-btn {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ivory-dim);
  width: 22px; height: 22px;
  cursor: pointer;
}
.spine-step-btn:hover { color: var(--ivory); border-color: var(--ash); }
.spine-step-v {
  font-size: 12px;
  color: var(--ivory);
  font-variant-numeric: tabular-nums;
  min-width: 72px;
}
.spine-slider input[type="range"] { flex: 1; min-width: 140px; accent-color: var(--amber); }
.spine-opt {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ivory-dim);
  padding: 4px 10px;
  cursor: pointer;
}
.spine-opt:hover { color: var(--ivory); border-color: var(--ash); }
.spine-opt.active { color: var(--copper); border-color: var(--copper); }
/* offered but not yet meaningful — clicking says why, rather than doing nothing */
.spine-opt.unavailable { opacity: 0.45; }

/* ---- PLAYED — the instrument under your hands ---- */
.spine-cell-played { flex: 0 0 auto; gap: 6px; }
.played-grid { display: flex; flex-wrap: wrap; gap: 6px; }
/* Registered and measured, but not yet sealable into a moment. Struck through
   rather than hidden: a missing row reads as a missing feature, a struck one
   reads as a schedule. The title says which engine version it waits for. */
.played-opt.pending {
  opacity: 0.38;
  cursor: not-allowed;
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}
.played-opt.pending:hover { color: var(--ivory-dim); border-color: var(--rule); }

/* a drawer's opening sentence — quieter than a control, still comfortably read */
.spine-drawer-lede { align-items: flex-start; }
.spine-drawer-say {
  font-size: 10px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--ivory-dim);
  max-width: 52ch;
}
/* the spelled-out FREEZE state, where there is room for words */
.spine-drawer-state {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ivory);
  font-variant-numeric: tabular-nums;
}
.spine-drawer-state.live { color: var(--copper); }
.spine-readout-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px 16px;
  padding: 4px 0;
  border-top: 1px solid var(--rule-soft);
}
.spine-kv { display: flex; flex-direction: column; gap: 2px; }
.spine-kv-k { font-size: 9px; letter-spacing: 0.16em; color: var(--ash); }
.spine-kv-v { font-size: 12px; color: var(--ivory); font-variant-numeric: tabular-nums; }
.spine-drawer .annotation { max-width: 340px; }

/* ---------------- observation plates ---------------- */

.plate-controls { display: flex; gap: 6px; }

.plate-btn {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.18em;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ivory-dim);
  padding: 7px 10px;
  cursor: pointer;
  white-space: nowrap;
}
.plate-btn:hover { color: var(--ivory); border-color: var(--ash); }
.plate-btn.confirm { color: var(--copper); border-color: var(--copper); }
.plate-btn.active {
  color: var(--copper);
  border-color: var(--copper);
  background: color-mix(in srgb, var(--copper) 12%, transparent);
}
.plate-btn:disabled { opacity: 0.4; cursor: default; }
.plate-btn.taping {
  color: var(--iron);
  border-color: var(--iron);
  animation: tapelamp 2s ease-in-out infinite;
}
@keyframes tapelamp {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

#plate-drawer {
  position: fixed;
  inset: 0;
  background: rgba(20, 18, 24, 0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
#plate-drawer[hidden] { display: none; }

.plate-panel {
  width: 420px;
  max-width: 90vw;
  background: var(--plate);
  border: 1px solid var(--rule);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#plate-input {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  background: var(--void);
  border: 1px solid var(--rule);
  color: var(--ivory);
  padding: 8px;
  outline: none;
}
#plate-input:focus { border-color: var(--ash); }

.plate-actions { display: flex; gap: 6px; }

#scan-drawer {
  position: fixed;
  inset: 0;
  background: rgba(20, 18, 24, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 11;
}
#scan-drawer[hidden] { display: none; }
.scan-panel { width: 508px; }
#scan-canvas {
  width: 100%;
  border: 1px solid var(--rule);
  background: var(--void);
}

.seance-btn { width: 100%; }
.seance-btn[data-on="true"] {
  color: var(--iron);
  border-color: var(--iron);
}

/* ---- MODES · CATALOGUE FIELD ---- */
.mode-controls { display: flex; gap: 6px; align-items: center; }
.mode-btn {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--ivory-dim);
  text-decoration: none;
  border: 1px solid var(--rule);
  padding: 5px 8px;
  background: var(--plate);
  cursor: pointer;
}
.mode-btn:hover { color: var(--ivory); border-color: var(--amber); }

#session-badge {
  position: fixed;
  top: 56px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 8;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--amber);
  background: var(--void-warm);
  border: 1px solid var(--rule);
  border-top-color: var(--amber);
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 7px;
  max-width: calc(100vw - 32px);
  flex-wrap: wrap;
  justify-content: center;
}
#session-badge[hidden] { display: none; }

/* The ribbon names the loaded field, but it sits over the aperture. It can be
   put away without releasing the field: a small restore tab keeps it one click
   from returning, so nothing is lost by hiding it. */
.sb-hide {
  background: none;
  border: none;
  color: var(--ash);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1;
  padding: 0 2px 0 6px;
  cursor: pointer;
  transition: color 0.2s ease;
}
.sb-hide:hover { color: var(--amber); }
.sb-restore {
  position: fixed;
  top: 56px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 8;
  background: var(--void-warm);
  border: 1px solid var(--rule);
  border-top-color: var(--amber);
  color: var(--ash);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.22em;
  padding: 3px 10px;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.25s ease, color 0.25s ease;
}
.sb-restore:hover { opacity: 1; color: var(--amber); }
.sb-restore[hidden] { display: none; }
body.chamber .sb-restore { display: none; }
#session-badge .sb-dot {
  width: 6px; height: 6px;
  background: var(--amber);
  border-radius: 50%;
  animation: sb-pulse 3.2s ease-in-out infinite;
}
.sb-path { color: var(--ivory); }
#session-badge-meta { color: var(--ash); letter-spacing: 0.12em; }
#session-badge-state {
  color: var(--ivory-dim);
  border-left: 1px solid var(--rule);
  padding-left: 8px;
}
#session-badge-state[data-phase='live'] { color: var(--phosphor); }
.sb-action {
  appearance: none;
  border: 0;
  border-left: 1px solid var(--rule);
  background: none;
  color: var(--ash);
  font: inherit;
  letter-spacing: .16em;
  text-decoration: none;
  padding: 0 0 0 8px;
  cursor: pointer;
}
.sb-action:hover, .sb-action:focus-visible { color: var(--ivory); outline: none; }
@keyframes sb-pulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }

/* the STATE ENGINE strip — indices, shown only while the loop is on */
#state-strip {
  position: fixed;
  top: 56px;
  right: 16px;
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 7px 14px;
  background: var(--void-warm);
  border: 1px solid var(--rule);
  border-top-color: var(--sage);
  font-variant-numeric: tabular-nums;
}
#state-strip[hidden] { display: none; }
#state-strip.draggable { cursor: grab; touch-action: none; user-select: none; }
#state-strip.dragging { cursor: grabbing; border-top-color: var(--amber); }
.ss-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--sage);
}
.ss-dot {
  width: 6px; height: 6px;
  background: var(--sage);
  border-radius: 50%;
  animation: sb-pulse 2.4s ease-in-out infinite;
}
.ss-metric { display: flex; flex-direction: column; gap: 2px; line-height: 1; }
.ss-metric .ss-k { font-size: 7px; letter-spacing: 0.18em; color: var(--ash); }
.ss-metric .ss-v { font-size: 13px; font-weight: 300; color: var(--ivory-dim); }
/* STEER is the live hand on the field — amber marks it as the acting readout */
.ss-steer .ss-v { color: var(--amber); }

/* the ADAPTIVE control: amber when steering, sage when only observing */
#adaptive.confirm { color: var(--amber); border-color: var(--amber); }
#adaptive.watching { color: var(--sage); border-color: var(--sage); }

#session-drawer {
  position: fixed;
  inset: 0;
  background: rgba(20, 18, 24, 0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
#session-drawer[hidden] { display: none; }

/* The library drawer remains modal. Recovery is a deliberate, non-blocking
   offer below the masthead so Create can resume or continue fresh. */
#bank-drawer {
  position: fixed;
  inset: 0;
  background: rgba(20, 18, 24, 0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
#bank-drawer[hidden] { display: none; }
.recovery-offer {
  position: fixed;
  z-index: 9;
  top: 58px;
  left: 50%;
  width: min(760px, calc(100vw - 40px));
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 18px;
  border: 1px solid var(--amber);
  background: var(--plate);
  box-shadow: 0 12px 36px rgba(0, 0, 0, .34);
}
.beat-grid.seance-protocol-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.recovery-offer[hidden] { display: none; }
.recovery-offer .annotation { margin: 5px 0 0; }
.recovery-offer .plate-actions { flex: 0 0 auto; }

#session-name {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  background: var(--void);
  border: 1px solid var(--rule);
  color: var(--ivory);
  padding: 8px;
  outline: none;
}
#session-name:focus { border-color: var(--ash); }

/* ---- the LIBRARY — an antechamber, not a menu ---- */
.library-body { overflow-y: auto; background: var(--void); }
#library-page {
  max-width: 1160px;
  margin: 0 auto;
  padding: 72px 32px 140px;
  animation: lib-arrive 1.4s ease both;
}
@keyframes lib-arrive { from { opacity: 0; } to { opacity: 1; } }
.lib-intro {
  text-align: center;
  margin-bottom: 60px;
}
.lib-title {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.55em;
  color: var(--ivory);
  padding-left: 0.55em; /* optical centering under the wide tracking */
}
.lib-intro-line {
  margin-top: 14px;
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--ash);
}
.lib-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin: 24px auto 0;
  color: var(--ivory-dim);
  font-size: 8px;
  letter-spacing: .16em;
}
.lib-flow b { color: var(--amber); font-weight: 400; }
.lib-flow i { color: var(--ash); font-style: normal; }
.lib-positioning {
  max-width: 560px;
  margin: 12px auto 0;
  font-size: 9px;
  line-height: 1.9;
  letter-spacing: 0.08em;
  color: var(--ash);
}
.lib-ledger-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--ivory-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 3px;
}
.lib-ledger-link:hover { color: var(--amber); border-color: var(--amber); }
.lib-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lib-shelf { border-bottom: 1px solid var(--rule-soft); }
.lib-shelf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  align-items: start;
  padding: 8px 0 28px;
}

/* category headers — the epistemology, engraved */
.proto-cat {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  margin: 0;
  padding: 18px 0 14px;
  cursor: pointer;
  list-style: none;
}
.proto-cat::-webkit-details-marker { display: none; }
.proto-cat::before { content: '›'; color: var(--amber); font-size: 12px; transition: transform .2s ease; }
.lib-shelf[open] > .proto-cat::before { transform: rotate(90deg); }
.proto-cat:hover .proto-cat-name, .proto-cat:focus-visible .proto-cat-name { color: var(--amber); }
.proto-cat:focus-visible { outline: 1px solid var(--rule); outline-offset: 4px; }
.proto-cat-n {
  font-size: 8px;
  letter-spacing: 0.28em;
  color: var(--ash);
}
.proto-cat-name {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.4em;
  color: var(--ivory);
}
.proto-cat-sub { font-size: 9px; letter-spacing: 0.06em; color: var(--ash); }
.proto-cat-count { margin-left: auto; font-size: 8px; color: var(--ash); }

/* the protocol card — a small spec sheet */
.proto-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 20px 16px;
  background: var(--void-warm);
  border: 1px solid var(--rule-soft);
  border-left: 1px solid var(--rule);
  cursor: pointer;
  transition: border-color 0.35s ease, background 0.35s ease;
}
.proto-card:hover, .proto-card:focus {
  outline: none;
  background: var(--plate);
  border-color: var(--rule);
  border-left-color: var(--amber);
}
.proto-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.proto-code { font-size: 9px; letter-spacing: 0.24em; color: var(--amber); font-variant-numeric: tabular-nums; }
.proto-rev { font-size: 8px; letter-spacing: 0.1em; color: var(--ash); font-variant-numeric: tabular-nums; }
.proto-title { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.proto-name { font-size: 15px; font-weight: 500; letter-spacing: 0.24em; color: var(--ivory); }
.proto-meta { font-size: 9px; letter-spacing: 0.06em; color: var(--ash); font-variant-numeric: tabular-nums; white-space: nowrap; }
.proto-note {
  font-size: 9px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--ivory-dim);
}
.proto-spec {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-top: 2px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
}
.ps-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 5px 8px;
  background: var(--void);
}
.ps-k { font-size: 8px; letter-spacing: 0.16em; color: var(--ash); }
.ps-v { font-size: 9px; letter-spacing: 0.02em; color: var(--ivory-dim); font-variant-numeric: tabular-nums; text-align: right; }
.proto-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 8px;
  border-top: 1px solid var(--rule-soft);
}
.proto-tier { font-size: 8px; letter-spacing: 0.08em; color: var(--ash); flex: 1; min-width: 60%; }
.proto-src-btn, .lib-del {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  color: var(--ash);
  background: none;
  border: none;
  padding: 2px 0;
  cursor: pointer;
}
.proto-src-btn:hover { color: var(--amber); }
.lib-del:hover { color: var(--iron); }
.proto-src {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 0 2px;
  border-top: 1px solid var(--rule-soft);
}
.proto-src-line { font-size: 8px; line-height: 1.6; letter-spacing: 0.03em; color: var(--ivory-dim); }
.proto-enter { margin-left: auto; color: var(--ash); letter-spacing: .16em; }
.proto-card:hover .proto-enter, .proto-card:focus .proto-enter { color: var(--amber); }
.lib-hint { grid-column: 1 / -1; text-align: center; margin-top: 24px; }

/* the threshold: choosing a plate closes the room around its name */
#threshold, #arrival {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: var(--void);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
  pointer-events: none;
}
#threshold { opacity: 0; transition: opacity 1.1s ease; }
#threshold.on { opacity: 1; }
#arrival { opacity: 1; transition: opacity 2.6s ease 0.9s; }
#arrival.off { opacity: 0; }
.th-code {
  font-size: 9px;
  letter-spacing: 0.4em;
  color: var(--amber);
}
.th-name {
  font-size: 18px;
  font-weight: 300;
  letter-spacing: 0.6em;
  padding-left: 0.6em;
  color: var(--ivory);
}
.th-line {
  font-size: 9px;
  letter-spacing: 0.25em;
  color: var(--ash);
}

/* ---- the FIELD LIBRARY rack ---- */
.field-wrap { display: flex; flex-direction: column; gap: 8px; }
.field-group-label {
  font-size: 8px;
  letter-spacing: 0.25em;
  color: var(--ash);
  margin-top: 4px;
}
.field-btn { font-size: 8px; }
.field-faders {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px solid var(--rule-soft);
}

/* narrow screens: rails shrink, motto goes */
@media (max-width: 1100px) {
  .motto, .doc-ref { display: none; }
  #lens-rail { flex-basis: 128px; }
  #control-rail { flex-basis: 224px; }
}

/* ============ CHAMBER — the doorway ============ */
/* the field alone: the rack, rails and transport recede; the aperture fills */
body.chamber #lens-rail,
body.chamber #lens-grip,
body.chamber #rail-grip,
body.chamber #control-rail,
body.chamber #spine,
body.chamber #scope-strip,
body.chamber #stance,
body.chamber .mast-readouts,
body.chamber .doc-ref { display: none; }
body.chamber #masthead {
  position: absolute; top: 0; left: 0; right: 0; z-index: 55;
  border-bottom: none; background: transparent; pointer-events: none;
}
body.chamber #masthead .wordmark { opacity: 0.35; transition: opacity 1.2s ease; }
body.chamber #lens-caption { opacity: 0.25; transition: opacity 1.2s ease; }
/* the lock badge recedes in the room — present, never loud */
body.chamber #session-badge { opacity: 0.5; border-top-color: var(--rule); }
/* the room recedes further: registration marks and bench stubs go; the
   epistemic footer stays — provenance survives the room — but quietly */
body.chamber .reg-mark { display: none; }
body.chamber #polarity-stub { display: none; }
body.chamber .truth-footer { opacity: 0.55; transition: opacity 0.6s ease; }
body.chamber .truth-footer:hover { opacity: 1; }
body.chamber .truth-chip { background: transparent; }

/* the chamber bar: one quiet instrument strip — a plate, not glass */
#chamber-bar {
  position: fixed; left: 50%; bottom: calc(26px + env(safe-area-inset-bottom));
  transform: translateX(-50%); z-index: 60;
  display: flex; align-items: center; gap: 10px 0; flex-wrap: wrap; justify-content: center;
  width: max-content; max-width: 94vw; padding: 11px 10px;
  background: color-mix(in srgb, var(--void) 93%, transparent);
  border: 1px solid var(--rule);
  animation: ch-arrive 1.6s ease both;
}
@keyframes ch-arrive { from { opacity: 0; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { #chamber-bar { animation: none; } }
#chamber-bar[hidden] { display: none; }
.ch-head { display: flex; flex-direction: column; gap: 3px; font-family: var(--mono); padding: 0 18px 0 10px; }
#chamber-name { font-size: 11px; letter-spacing: .22em; color: var(--ivory); text-transform: uppercase; white-space: nowrap; }
#chamber-clock { font-size: 9px; color: var(--ash); letter-spacing: .14em; font-variant-numeric: tabular-nums; }
.ch-mark-count { font-size: 9px; color: var(--amber); letter-spacing: .14em; font-variant-numeric: tabular-nums; }
body[data-pathway='guide'] #chamber-clock {
  font-size: var(--type-value);
  color: var(--amber);
  letter-spacing: .16em;
}
body[data-pathway='guide'] .ch-engage { min-width: 132px; }
body[data-pathway='play'] #chamber-mark { color: var(--amber); border-color: var(--rule); }
.ch-group { display: flex; align-items: center; gap: 2px; padding: 0 10px;
  border-left: 1px solid var(--rule-soft); }
.ch-btn {
  font-family: var(--mono); font-size: 9px; font-weight: 500; letter-spacing: .2em; text-transform: uppercase;
  color: var(--ivory-dim); background: none; border: 1px solid transparent;
  padding: 10px 13px; cursor: pointer; white-space: nowrap;
  transition: color .35s, border-color .35s;
}
.ch-btn:hover { color: var(--ivory); border-color: var(--rule); }
.ch-engage { border-color: var(--rule); background: var(--plate); letter-spacing: .25em; min-width: 84px; }
.ch-engage.on { color: var(--copper); border-color: var(--copper); }
.ch-ghost { color: var(--ash); }
.ch-veil { display: flex; align-items: center; gap: 10px; font-family: var(--mono);
  font-size: 9px; letter-spacing: .2em; color: var(--ash); padding: 0 6px 0 14px; cursor: ew-resize; }
#chamber-veil { -webkit-appearance: none; appearance: none; width: 132px; height: 14px;
  background: transparent; outline: none; cursor: ew-resize; }
#chamber-veil::-webkit-slider-runnable-track { height: 1px; background: var(--rule); }
#chamber-veil::-webkit-slider-thumb { -webkit-appearance: none; width: 3px; height: 13px;
  margin-top: -6px; background: var(--ivory-dim); cursor: ew-resize; border-radius: 0; }
#chamber-veil:hover::-webkit-slider-thumb { background: var(--ivory); }
#chamber-veil::-moz-range-track { height: 1px; background: var(--rule); }
#chamber-veil::-moz-range-thumb { width: 3px; height: 13px; background: var(--ivory-dim);
  border: none; border-radius: 0; }
@media (max-width: 680px) {
  #chamber-bar { gap: 8px 0; padding: 10px 8px; }
  .ch-head { width: 100%; flex-direction: row; align-items: baseline; gap: 12px;
    justify-content: center; padding: 2px 0 6px; }
  .ch-group { border-left: none; padding: 0 4px; }
}

#chamber-refusal {
  position: fixed; inset: 0; z-index: 70; display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--void) 94%, transparent);
  padding: 24px;
}
#chamber-refusal[hidden] { display: none; }
.ch-refusal-panel { max-width: 460px; border: 1px solid var(--rule);
  background: var(--void-warm); padding: 28px; text-align: center; }
.ch-refusal-title { font-family: var(--mono); font-size: 12px; letter-spacing: .22em;
  color: var(--iron); margin-bottom: 14px; }
.ch-refusal-panel .plate-actions { justify-content: center; margin-top: 16px; }

/* ---- THE BANK — marked fields as tracks ---- */
.bank-list { max-height: 46vh; overflow-y: auto; margin: 10px 0; display: flex; flex-direction: column; gap: 6px; }
.bank-row { display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 8px 10px; border: 1px solid var(--rule-soft); }
.bank-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.bank-name { font-size: 11px; letter-spacing: .08em; color: var(--ivory);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bank-time { font-size: 9px; color: var(--ash); letter-spacing: .08em; }
.bank-row-acts { display: flex; gap: 5px; flex-shrink: 0; }
.bank-row-acts .plate-btn { padding: 6px 8px; font-size: 9px; }

/* ============================================================
   CONTRACT P0 — truth footer · entrance · POLARITY stub
   ============================================================ */

/* the truth-status footer (contract §1) — the epistemic signature on every
   lens, pinned to the aperture's lower edge */
.truth-footer {
  position: absolute;
  left: 14px;
  bottom: 12px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  max-width: calc(100% - 28px);
  gap: 5px;
  z-index: 6;
  pointer-events: auto;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
}
.truth-chip {
  padding: 2px 6px;
  border: 1px solid var(--rule);
  border-radius: 1px;
  background: rgba(20, 18, 24, 0.72);
  color: var(--ivory-dim);
  cursor: help;
}
.truth-plus { color: var(--ash); font-size: 9px; }
.truth-measured  { color: var(--copper);    border-color: var(--copper); }
.truth-modeled   { color: var(--dust-blue); border-color: var(--dust-blue); }
.truth-tradition { color: var(--smoke);     border-color: var(--smoke); }
.truth-composed  { color: var(--amber);     border-color: var(--amber); }
.truth-felt      { color: var(--sage);      border-color: var(--sage); }

/* POLARITY stub — the ORBITAL fold of the retired L·06, top-right of aperture */
#polarity-stub {
  position: absolute;
  top: 12px;
  right: 14px;
  z-index: 6;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  background: rgba(20, 18, 24, 0.82);
  border: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ivory-dim);
}
#polarity-stub .pol-label { color: var(--amber); letter-spacing: 0.2em; }
#polarity-stub .pol-sub { color: var(--ash); margin-left: 4px; }
#polarity-stub label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
#polarity-stub input[type="range"] { flex: 1; accent-color: var(--amber); }

/* the entrance — intention groups as the front door (contract §2) */
.entrance {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 34px;
  background: radial-gradient(120% 90% at 50% 30%, var(--void-warm), var(--void) 72%);
  font-family: var(--mono);
  padding: 40px;
}
.entrance[hidden] { display: none; }
.entrance-head { text-align: center; }
.entrance-mark { font-size: 22px; letter-spacing: 0.42em; color: var(--ivory); }
.entrance-sub { margin-top: 10px; font-size: 11px; letter-spacing: 0.18em; color: var(--ivory-dim); }
.entrance-grid {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 900px;
}
.entrance-group { display: flex; flex-direction: column; gap: 8px; min-width: 148px; }
.entrance-group-label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 6px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule-soft);
}
.eg-key { font-size: 10px; font-weight: 500; letter-spacing: 0.28em; color: var(--amber); }
.eg-hint { font-size: 9px; letter-spacing: 0.1em; color: var(--ash); }
.entrance-door {
  padding: 10px 14px;
  background: var(--void-warm);
  border: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
  color: var(--ivory-dim);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-align: left;
  cursor: pointer;
  transition: color 0.45s, border-color 0.45s, background 0.45s;
}
.entrance-door:hover, .entrance-door:focus-visible {
  color: var(--ivory);
  border-color: var(--ash);
  border-left-color: var(--amber);
  background: var(--plate);
  outline: none;
}
.entrance-bench {
  background: none;
  border: none;
  color: var(--ash);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  cursor: pointer;
}
.entrance-bench:hover { color: var(--ivory-dim); }
body.entrance-open #masthead .wordmark { cursor: default; }

/* an id/class rule with `display` overrides the UA `[hidden]{display:none}`;
   restore it so hidden actually hides (POLARITY off ORBITAL, empty footer) */
#polarity-stub[hidden] { display: none; }
.truth-footer[hidden] { display: none; }
/* lift the footer clear of the lens caption (which now also carries the
   OBSERVED · NOT SHAPED chip on observe-only lenses) */
.truth-footer { bottom: 52px; }

/* ============================================================
   RELEASE PATHWAYS · CATALOGUE DISCLOSURE · DESKTOP TYPE SCALE
   1440×900 · 1152×720 (125%) · 960×600 (150%) · 1100×660 floor
   ============================================================ */

.pathway-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  white-space: nowrap;
}
.pathway-current {
  color: var(--amber);
  font-size: var(--type-label);
  letter-spacing: .18em;
}
#choose-pathway { background: transparent; }
.pathway-change { opacity: .56; }
.pathway-change:hover, .pathway-change:focus-visible { opacity: 1; }

.pathway-threshold {
  position: fixed;
  inset: 0;
  z-index: 140;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 34px;
  padding: 48px;
  background: var(--void);
  color: var(--ivory);
}
.pathway-threshold[hidden] { display: none; }
.pathway-threshold-head { max-width: 720px; text-align: center; }
.pathway-eyebrow {
  color: var(--amber);
  font-size: var(--type-label);
  letter-spacing: .34em;
  margin-bottom: 14px;
}
.pathway-threshold h1 {
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 300;
  letter-spacing: .05em;
}
.pathway-threshold-head p {
  margin-top: 14px;
  color: var(--ivory-dim);
  font-size: var(--type-control);
  letter-spacing: .1em;
}
.pathway-choices {
  width: min(1040px, 100%);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.pathway-choice {
  min-height: 176px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  padding: 28px;
  background: var(--void-warm);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--rule);
  color: var(--ivory);
  text-align: left;
  font-family: var(--mono);
  cursor: pointer;
}
.pathway-choice:hover, .pathway-choice:focus-visible {
  border-color: var(--amber);
  background: var(--plate);
  outline: none;
}
.pathway-choice-title {
  font-size: var(--type-title);
  letter-spacing: .22em;
}
.pathway-choice-description {
  color: var(--ivory-dim);
  font-size: var(--type-control);
  line-height: 1.7;
  letter-spacing: .04em;
}
.pathway-principle {
  color: var(--ash);
  font-size: var(--type-micro);
  letter-spacing: .2em;
  text-align: center;
}

.field-ready {
  position: fixed;
  inset: 48px 0 0;
  z-index: 80;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 36px;
  text-align: center;
  background: var(--void);
}
.field-ready-path {
  color: var(--amber);
  font-size: var(--type-label);
  letter-spacing: .3em;
}
.field-ready-state {
  margin-top: 28px;
  color: var(--ivory-dim);
  font-size: var(--type-control);
  letter-spacing: .36em;
}
.field-ready-name {
  margin-top: 16px;
  color: var(--ivory);
  font-size: clamp(28px, 5vw, 64px);
  font-weight: 300;
  letter-spacing: .28em;
  text-indent: .28em;
}
.field-ready p {
  max-width: 58ch;
  margin: 24px auto 34px;
  color: var(--ivory-dim);
  font-size: var(--type-control);
  line-height: 1.8;
}
.field-ready button {
  min-width: 220px;
  padding: 14px 24px;
  font: 500 var(--type-control) var(--mono);
  letter-spacing: .26em;
  color: var(--ivory);
  background: var(--plate);
  border: 1px solid var(--amber);
  cursor: pointer;
}
.field-ready button + button {
  margin-top: 10px;
  color: var(--ivory-dim);
  border-color: var(--rule);
  background: transparent;
}
.field-ready button:hover, .field-ready button:focus-visible {
  color: var(--amber);
  outline: none;
}

.web-demo-offer {
  position: fixed;
  z-index: 18;
  top: 56px;
  right: 16px;
  max-width: min(520px, calc(100vw - 32px));
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 12px;
  border: 1px solid var(--rule);
  border-top-color: var(--amber);
  background: var(--void-warm);
  color: var(--ash);
  font-size: var(--type-micro);
  letter-spacing: .1em;
}
.web-demo-offer[hidden] { display: none; }
.web-demo-offer a { color: var(--amber); text-decoration: none; white-space: nowrap; }

.lib-kicker {
  margin-bottom: 14px;
  color: var(--amber);
  font-size: var(--type-label);
  letter-spacing: .32em;
}
.lib-browser {
  margin-bottom: 38px;
  padding: 18px;
  border: 1px solid var(--rule);
  background: var(--void-warm);
}
.lib-entry { margin: -22px 0 28px; }
.lib-sections {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--rule);
  background: var(--void-warm);
}
.lib-section {
  min-height: 48px;
  border: 0;
  border-right: 1px solid var(--rule);
  background: transparent;
  color: var(--ivory-dim);
  font: 500 var(--type-control) var(--mono);
  letter-spacing: .16em;
  cursor: pointer;
}
.lib-section:last-child { border-right: 0; }
.lib-section:hover, .lib-section:focus-visible,
.lib-section.active { color: var(--amber); background: var(--plate); outline: none; }
.lib-section:disabled { color: var(--ash); opacity: .42; cursor: default; background: transparent; }
.lib-section-note {
  margin: 12px 2px 0;
  color: var(--ash);
  font-size: var(--type-label);
  letter-spacing: .08em;
}
.continue-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 14px;
  padding: 18px 20px;
  border: 1px solid var(--amber);
  background: var(--plate);
}
.continue-field[hidden] { display: none; }
.continue-field > div { display: grid; gap: 5px; }
.continue-kicker { color: var(--amber); font-size: var(--type-label); letter-spacing: .18em; }
#continue-field-name { color: var(--ivory); font-size: var(--type-title); letter-spacing: .2em; }
#continue-field-meta { color: var(--ash); font-size: var(--type-label); letter-spacing: .08em; }
.lib-filter-panel { margin-top: 12px; border-top: 1px solid var(--rule-soft); padding-top: 10px; }
.lib-filter-panel > summary {
  color: var(--ash);
  font-size: var(--type-label);
  letter-spacing: .16em;
  cursor: pointer;
  list-style: none;
}
.lib-filter-panel > summary::before { content: '+ '; color: var(--amber); }
.lib-filter-panel[open] > summary::before { content: '- '; }
.lib-search-row {
  display: flex;
  align-items: end;
  gap: 16px;
}
.lib-search {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 7px;
  color: var(--ash);
  font-size: var(--type-label);
  letter-spacing: .18em;
}
.lib-search input {
  width: 100%;
  min-height: 38px;
  padding: 9px 12px;
  border: 1px solid var(--rule);
  background: var(--void);
  color: var(--ivory);
  font: var(--type-control) var(--mono);
  letter-spacing: .06em;
  outline: none;
}
.lib-search input:focus { border-color: var(--amber); }
.lib-view-controls { display: flex; gap: 5px; }
.lib-tool, .lib-clear {
  padding: 9px 11px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ivory-dim);
  font: var(--type-label) var(--mono);
  letter-spacing: .12em;
  cursor: pointer;
}
.lib-tool.active { color: var(--amber); border-color: var(--amber); }
.lib-filters {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}
.lib-filter { display: flex; flex-direction: column; gap: 5px; }
.lib-filter > span {
  color: var(--ash);
  font-size: var(--type-micro);
  letter-spacing: .18em;
}
.lib-filter select {
  min-width: 0;
  padding: 8px;
  border: 1px solid var(--rule);
  background: var(--plate);
  color: var(--ivory-dim);
  font: var(--type-label) var(--mono);
}
.lib-results-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 13px;
  color: var(--ash);
  font-size: var(--type-label);
  letter-spacing: .14em;
}
.lib-clear { border: 0; padding: 3px; color: var(--ash); }
.lib-clear:hover { color: var(--ivory); }
.lib-simple-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  align-items: start;
}
.proto-spec-details {
  border-top: 1px solid var(--rule-soft);
  padding-top: 8px;
}
.proto-spec-details > summary {
  color: var(--ash);
  font-size: var(--type-label);
  letter-spacing: .16em;
  cursor: pointer;
  list-style: none;
}
.proto-spec-details > summary::before { content: '＋ '; color: var(--amber); }
.proto-spec-details[open] > summary::before { content: '− '; }
.proto-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.proto-tags span {
  padding: 3px 6px;
  border: 1px solid var(--rule-soft);
  color: var(--ash);
  font-size: var(--type-micro);
  letter-spacing: .08em;
}
.proto-choose {
  margin-left: auto;
  padding: 8px 10px;
  border: 1px solid var(--amber);
  background: transparent;
  color: var(--amber);
  font: 500 var(--type-control) var(--mono);
  letter-spacing: .13em;
  cursor: pointer;
}
.proto-choose:hover, .proto-choose:focus-visible {
  color: var(--ivory);
  background: color-mix(in srgb, var(--amber) 10%, transparent);
  outline: none;
}
.lib-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 56px 20px;
  border: 1px solid var(--rule);
  color: var(--ash);
  font-size: var(--type-control);
  letter-spacing: .14em;
  text-align: center;
}
body[data-view='list'] .lib-simple-grid,
body[data-view='list'] .lib-shelf-grid { grid-template-columns: 1fr; }
body[data-view='list'] .proto-card {
  display: grid;
  grid-template-columns: 120px minmax(180px, .8fr) minmax(260px, 1.6fr);
  gap: 8px 18px;
}
body[data-view='list'] .proto-head { grid-row: 1 / span 2; }
body[data-view='list'] .proto-title,
body[data-view='list'] .proto-note { align-self: start; }
body[data-view='list'] .proto-tags,
body[data-view='list'] .proto-spec-details,
body[data-view='list'] .proto-foot,
body[data-view='list'] .proto-src { grid-column: 2 / -1; }

/* Operational typography: no primary control below 10px. Secondary evidence,
   provenance and legal annotations keep the 9px micro tier. */
.wordmark { font-size: 15px; }
.ro-label, .lens-item .li-id, .id-label, .id-val, .voice-id,
.freq-unit, .slider-label, .xpose-label, .slider-val, .sb-k,
.spine-drawer-k, .spine-drawer-hint, .spine-step-k, .spine-kv-k,
.mode-btn, .bench-page, .ss-label, .proto-code, .proto-meta, .proto-note,
.ps-v, .bank-time { font-size: var(--type-label); }
.lens-item .li-name, .toggle, .stepper, .input-device, .wave-btn,
.ratio-btn, .preset-btn, .spine-armkey, .stance-opt, .spine-opt,
.plate-btn, .spine-drawer-say, .spine-drawer-state, .ch-btn {
  font-size: var(--type-control);
}
.ro-value, .sb-v, .ss-metric .ss-v, .spine-step-v, .spine-kv-v {
  font-size: var(--type-value);
}
.lib-title { font-size: var(--type-title); }

@media (max-width: 1200px) {
  .pathway-current { display: none; }
  .pathway-nav .mode-btn { padding-left: 6px; padding-right: 6px; }
  .pathway-choices { gap: 8px; }
  .pathway-choice { padding: 22px; }
}
@media (max-width: 900px) {
  .pathway-threshold { padding: 28px; }
  .pathway-choices { grid-template-columns: 1fr; max-width: 620px; }
  .pathway-choice { min-height: 112px; gap: 16px; }
  .lib-search-row { align-items: stretch; flex-direction: column; }
  .lib-sections { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lib-section:nth-child(2) { border-right: 0; }
  .lib-section:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
  .lib-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  body[data-view='list'] .proto-card { display: flex; }
  .web-demo-offer { left: 16px; right: 16px; justify-content: center; }
  .recovery-offer { align-items: stretch; flex-direction: column; gap: 10px; }
}