/* ============================================================
   TEXT MAKER PAGE: MODIFIERS chapter (js/tm-modifiers.js), Hairline style
   An open tab band (light numerals, big names, tracked "driven by" labels,
   vertical hairline dividers, one light bar on the active modifier), a flat
   black stage and plain text options with a light underline when selected.
   Scoped to .tm-page, prefixed tmm-. Nothing JS moves carries a
   pseudo-element, a filter or a backdrop-filter.
   Hooks: [data-tmm] [data-tmm-tab] [data-tmm-demo] [data-tmm-ctl]
   [data-tmm-master] [data-tmm-clip] [data-tmm-view]
   ============================================================ */

.tm-page .tmm { position: relative; }

/* ---------- shared pieces ---------- */
.tm-page .tmm-label {
  font: 600 12.5px/1.4 "Inter", sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tm-eyebrow);
}
.tm-page .tmm-opts { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 20px; }
.tm-page .tmm-opt {
  position: relative;
  margin: 0;
  padding: 8px 0 9px;
  border: 0;
  background: none;
  font: 600 14px/1.2 "Inter", sans-serif;
  color: var(--tm-soft);
  cursor: pointer;
  transition: color 0.18s ease;
}
/* the pressed bar: the same solid 1px bar as .tm-chip / .tm-hl-opt (tm-core.css),
   so a band with several pressed options still shows a single light */
.tm-page .tmm-opt::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 1px;
  background: rgba(205, 216, 255, 0.6);
  opacity: 0;
  transition: opacity 0.15s ease;
  pointer-events: none;
}
.tm-page .tmm-opt:hover { color: #e9edff; }
.tm-page .tmm-opt[aria-pressed="true"] { color: #ffffff; }
.tm-page .tmm-opt[aria-pressed="true"]::after { opacity: 1; }
.tm-page .tmm-opt:focus-visible,
.tm-page .tmm-textbtn:focus-visible,
.tm-page .tmm-tab:focus-visible { outline: 1px solid var(--tm-ice); outline-offset: 3px; }
/* secondary actions: the .tm-hl-link underline (14px here, the bar is dense) */
.tm-page .tmm-textbtn {
  margin: 0;
  padding: 6px 0;
  border: 0;
  background: none;
  font: 600 14px/1.2 "Inter", sans-serif;
  color: var(--tm-bright);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 6px;
  text-decoration-color: rgba(205, 216, 255, 0.4);
  white-space: nowrap;
  cursor: pointer;
  transition: text-decoration-color 0.15s ease, color 0.15s ease;
}
.tm-page .tmm-textbtn:hover { color: #fff; text-decoration-color: var(--tm-ice); }
.tm-page .tmm-textbtn[aria-pressed="true"] { text-decoration-color: rgba(205, 216, 255, 0.7); }

/* ---------- the tab band ---------- */
.tm-page .tmm-tabs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.tm-page .tmm-item { position: relative; min-width: 0; padding: 30px 26px 28px; cursor: pointer; }
.tm-page .tmm-item:first-child { padding-left: 0; }
.tm-page .tmm-item + .tmm-item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  bottom: 28px;
  width: 1px;
  background: var(--line);
}
/* the one light: a 1px bar on the top rule of the active modifier */
.tm-page .tmm-item::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(205, 216, 255, 0.75) 22%, rgba(205, 216, 255, 0.2) 60%, transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}
.tm-page .tmm-item.is-active::before { opacity: 1; }
.tm-page .tmm-tab {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
  color: rgba(214, 224, 255, 0.46);
  cursor: pointer;
  transition: color 0.2s ease;
}
.tm-page .tmm-item:hover .tmm-tab { color: rgba(236, 241, 255, 0.78); }
.tm-page .tmm-item.is-active .tmm-tab { color: #ffffff; }
.tm-page .tmm-num {
  display: block;
  font: 600 30px/1 "Space Grotesk", sans-serif;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, #ffffff 0%, #dfe6ff 55%, #9fb2ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.45;
  transition: opacity 0.2s ease;
}
.tm-page .tmm-item.is-active .tmm-num { opacity: 1; }
.tm-page .tmm-tab-name {
  display: block;
  margin-top: 18px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(28px, 1.2rem + 1.4vw, 40px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.tm-page .tmm-about { transition: opacity 0.2s ease; }
.tm-page .tmm-item:not(.is-active) .tmm-about { opacity: 0.55; }
.tm-page .tmm-item:not(.is-active):hover .tmm-about { opacity: 0.8; }
.tm-page .tmm-drv { display: block; margin-top: 14px; font: 600 12.5px/1.4 "Inter", sans-serif; letter-spacing: 0.16em; text-transform: uppercase; color: var(--tm-eyebrow); }
.tm-page .tmm-what { margin: 8px 0 0; max-width: 34ch; font-size: 14px; line-height: 1.5; color: var(--tm-soft); }

/* ---------- the stage ---------- */
.tm-page .tmm-stage { margin-top: 40px; min-width: 0; }
.tm-page .tmm-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 22px; padding-bottom: 12px; }
.tm-page .tmm-offnote { margin: 0; font-size: 14px; line-height: 1.5; color: var(--tm-soft); }
.tm-page .tmm-bar-end { display: flex; align-items: center; gap: 22px; margin-left: auto; }
/* only the active modifier's clip button can show (a gated one stays [hidden]) */
.tm-page .tmm[data-active="physics"] .tmm-clipbtn:not([data-tmm-clip="physics"]),
.tm-page .tmm[data-active="seqcam"] .tmm-clipbtn:not([data-tmm-clip="seqcam"]),
.tm-page .tmm[data-active="proximity"] .tmm-clipbtn:not([data-tmm-clip="proximity"]) { display: none; }
.tm-page .tmm.is-clip [data-tmm-replay] { display: none; }
.tm-page .tmm.is-rec [data-tmm-replay] { display: inline-block; }
.tm-page .tmm:not(.is-ready) .tmm-bar,
.tm-page .tmm:not(.is-ready) .tmm-ctls,
.tm-page .tmm:not(.is-ready) .tmm-badge { display: none; }

.tm-page .tmm-view {
  position: relative;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  container-type: inline-size;
  background: var(--tm-stage);
  border: 1px solid var(--line);
  border-radius: 18px;
  -webkit-user-select: none;
  user-select: none;
}
.tm-page .tmm-demo { position: absolute; inset: 0; }
.tm-page .tmm-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; background: #000; z-index: 4; }
.tm-page .tmm-badge {
  position: absolute;
  left: 20px;
  top: 16px;
  z-index: 5;
  font: 600 11px/1.4 "Inter", sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(159, 182, 255, 0.8);
  pointer-events: none;
}
.tm-page .tmm-static {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  text-align: center;
  font: 700 8cqi/1.08 "Space Grotesk", sans-serif;
  letter-spacing: -0.02em;
  color: #f4f7ff;
}

/* ---------- the option band under the stage ---------- */
.tm-page .tmm-ctls { margin-top: 24px; }
.tm-page .tmm-ctl,
.tm-page .tmm-clipcap {
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.tm-page .tmm-ctl { display: grid; grid-template-columns: auto auto minmax(0, 1fr); }
.tm-page .tmm-col { position: relative; min-width: 0; margin: 0; padding: 22px 26px 18px; }
.tm-page .tmm-col:first-child { padding-left: 0; }
.tm-page .tmm-col + .tmm-col::after {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 1px;
  background: var(--line);
}
.tm-page .tmm-col > .tmm-label { display: block; margin-bottom: 4px; }
.tm-page .tmm-val { display: block; padding: 8px 0 9px; font: 600 14px/1.2 "Inter", sans-serif; color: #ffffff; }
.tm-page .tmm-cap { align-self: center; max-width: 44ch; font-size: 14px; line-height: 1.5; color: var(--tm-soft); }
.tm-page .tmm-clipcap { margin: 0; padding: 22px 0 20px; font-size: 14px; line-height: 1.5; color: var(--tm-soft); }
.tm-page .tmm-clipcap .tmm-label { margin-right: 12px; }
.tm-page .tmm.is-off .tmm-ctl .tmm-col:not(.tmm-cap) { opacity: 0.45; }
.tm-page .tmm.is-clip .tmm-ctl { display: none; }
.tm-page .tmm-foot { margin: 26px 0 0; max-width: 52ch; font-size: 15px; line-height: 1.5; color: var(--tm-soft); }

/* ---------- Physics ---------- */
.tm-page .tmm-ph-text {
  position: absolute;
  inset: 0;
  display: grid;
  justify-items: center;
  align-items: start;
  padding-top: 22cqi;
}
.tm-page .tmm-ph-layer {
  grid-area: 1 / 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 13cqi;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #f4f7ff;
  pointer-events: none;
}
.tm-page .tmm-ph-main { position: relative; z-index: 2; }
.tm-page .tmm-ph-trail { color: #7f9bff; }
.tm-page .tmm-ph-line { display: flex; white-space: pre; }
.tm-page .tmm-ph-u { display: inline-block; transform-origin: 50% 80%; will-change: transform, opacity; }
.tm-page .tmm-ph-shades { z-index: 1; }
.tm-page .tmm-ph-g { position: relative; display: inline-block; color: transparent; }
.tm-page .tmm-ph-shadow {
  position: absolute;
  left: 50%;
  top: 0.8em;
  width: 0.8em;
  height: 0.14em;
  margin: -0.06em 0 0 -0.4em;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(150, 175, 255, 0.34), rgba(150, 175, 255, 0.1) 60%, rgba(150, 175, 255, 0));
  will-change: transform, opacity;
}
.tm-page .tmm-ph-floor {
  position: absolute;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 20%, var(--line) 80%, transparent);
}

/* ---------- Sequence Cam ---------- */
.tm-page .tmm-sc-2d { position: absolute; inset: 0; overflow: hidden; }
.tm-page .tmm-sc-world {
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  transform-origin: 0 0;
  will-change: transform;
}
.tm-page .tmm-sc-w {
  position: absolute;
  left: 0;
  top: 0;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  white-space: nowrap;
  color: #f4f7ff;
}
.tm-page .tmm-sc-wi { display: block; will-change: transform, opacity; }
.tm-page .tmm-sc-3d { position: absolute; inset: 0; overflow: hidden; perspective-origin: 50% 50%; }
.tm-page .tmm-sc-3d .tmm-sc-world { left: 50%; top: 50%; transform-style: preserve-3d; }
.tm-page .tmm-sc-card {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  white-space: nowrap;
  color: #f4f7ff;
  will-change: transform, opacity;
}
.tm-page .tmm-sc-dust {
  position: absolute;
  left: 0;
  top: 0;
  width: 5px;
  height: 5px;
  margin: -2.5px 0 0 -2.5px;
  border-radius: 50%;
  background: rgba(190, 206, 255, 0.9);
}
.tm-page .tmm-sc-base {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font: 700 9cqi/1.12 "Space Grotesk", sans-serif;
  letter-spacing: -0.02em;
  color: #f4f7ff;
}
.tm-page .tmm-sc-base span { display: inline-block; white-space: pre; will-change: transform, opacity; }
/* the viewfinder: four hairline corners and a centre mark, still */
.tm-page .tmm-vf { position: absolute; inset: 16% 4.5% 19%; pointer-events: none; z-index: 3; }
.tm-page .tmm-vf i {
  position: absolute;
  width: 20px;
  height: 20px;
  border: 0 solid rgba(205, 216, 255, 0.42);
}
.tm-page .tmm-vf i:nth-child(1) { left: 0; top: 0; border-left-width: 1px; border-top-width: 1px; }
.tm-page .tmm-vf i:nth-child(2) { right: 0; top: 0; border-right-width: 1px; border-top-width: 1px; }
.tm-page .tmm-vf i:nth-child(3) { left: 0; bottom: 0; border-left-width: 1px; border-bottom-width: 1px; }
.tm-page .tmm-vf i:nth-child(4) { right: 0; bottom: 0; border-right-width: 1px; border-bottom-width: 1px; }
.tm-page .tmm-vf b {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 13px;
  height: 13px;
  margin: -6.5px 0 0 -6.5px;
  background:
    linear-gradient(rgba(205, 216, 255, 0.3), rgba(205, 216, 255, 0.3)) 50% 0 / 1px 100% no-repeat,
    linear-gradient(rgba(205, 216, 255, 0.3), rgba(205, 216, 255, 0.3)) 0 50% / 100% 1px no-repeat;
}
/* the shot list: the camera's beats, lit as it reaches them */
.tm-page .tmm-tl { position: absolute; left: 4.5%; right: 4.5%; bottom: 5%; z-index: 3; pointer-events: none; }
.tm-page .tmm-tl-track { position: relative; height: 1px; background: var(--line); overflow: hidden; }
.tm-page .tmm-tl-fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(205, 216, 255, 0.2), rgba(205, 216, 255, 0.9));
  transform-origin: 0 50%;
  transform: scaleX(0);
  will-change: transform;
}
.tm-page .tmm-tl-labels { position: relative; height: 16px; margin-bottom: 9px; }
.tm-page .tmm-tl-labels span {
  position: absolute;
  bottom: 0;
  transform: translateX(-50%);
  font: 600 10.5px/1.4 "Inter", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  color: #ffffff;
  opacity: 0.4;
  will-change: opacity;
}
.tm-page .tmm-tl-labels span:first-child { transform: none; }
.tm-page .tmm-tl-labels span:last-child { transform: translateX(-100%); }

/* ---------- Proximity ---------- */
.tm-page .tmm-px { touch-action: pan-y; cursor: crosshair; }
.tm-page .tmm-px-field {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(143, 208, 255, 0.12) 1px, transparent 1.3px);
  background-size: 22px 22px;
  background-position: 50% 50%;
  pointer-events: none;
}
.tm-page .tmm-px-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 10cqi;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: #f4f7ff;
  pointer-events: none;
}
.tm-page .tmm-px-line { display: flex; white-space: pre; }
.tm-page .tmm-px-u { display: inline-block; will-change: transform; }
.tm-page .tmm-px-sp { display: inline-block; width: 0.26em; }
.tm-page .tmm-px-guide {
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  z-index: 3;
  pointer-events: none;
  will-change: transform;
  transition: opacity 0.3s ease;
}
.tm-page .tmm-px-ring { position: absolute; left: 0; top: 0; border-radius: 50%; pointer-events: none; }
.tm-page .tmm-px-core {
  width: var(--core, 80px);
  height: var(--core, 80px);
  margin: calc(var(--core, 80px) / -2) 0 0 calc(var(--core, 80px) / -2);
  border: 1px solid rgba(223, 230, 255, 0.8);
}
.tm-page .tmm-px-band {
  width: var(--band, 240px);
  height: var(--band, 240px);
  margin: calc(var(--band, 240px) / -2) 0 0 calc(var(--band, 240px) / -2);
  border: 1px dashed rgba(205, 216, 255, 0.3);
}
.tm-page .tmm-px-handle {
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  pointer-events: auto;
  touch-action: none;
  cursor: grab;
}
.tm-page .tmm-px-handle i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 7px;
  height: 7px;
  margin: -3.5px 0 0 -3.5px;
  border-radius: 50%;
  background: #ffffff;
}
.tm-page .tmm-px-handle:focus-visible { outline: 1px solid var(--tm-ice); outline-offset: -8px; }
.tm-page .tmm-px-guide.is-off { opacity: 0; }
.tm-page .tmm-px-guide.is-off .tmm-px-handle { pointer-events: none; }

/* ---------- widths ---------- */
@media (max-width: 820px) {
  .tm-page .tmm-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .tm-page .tmm-item { display: contents; }
  .tm-page .tmm-item::before, .tm-page .tmm-item + .tmm-item::after { content: none; }
  .tm-page .tmm-tab {
    grid-row: 1;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 20px 12px 16px;
  }
  .tm-page .tmm-item:first-child .tmm-tab { padding-left: 0; }
  .tm-page .tmm-item + .tmm-item .tmm-tab::after {
    content: "";
    position: absolute;
    left: 0;
    top: 20px;
    bottom: 16px;
    width: 1px;
    background: var(--line);
  }
  .tm-page .tmm-tab::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -1px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(205, 216, 255, 0.75) 22%, rgba(205, 216, 255, 0.2) 60%, transparent);
    opacity: 0;
  }
  .tm-page .tmm-item.is-active .tmm-tab::before { opacity: 1; }
  .tm-page .tmm-num { font-size: 20px; }
  .tm-page .tmm-tab-name { margin-top: 10px; font-size: 18px; line-height: 1.15; letter-spacing: -0.02em; }
  .tm-page .tmm-about { grid-row: 2; grid-column: 1 / -1; padding: 14px 0 18px; border-top: 1px solid var(--tm-rule); }
  .tm-page .tmm-item:not(.is-active) .tmm-about { display: none; }
  .tm-page .tmm-drv { margin-top: 0; }
  .tm-page .tmm:not(.is-ready) .tmm-about { display: block; grid-row: auto; }
  .tm-page .tmm-stage { margin-top: 28px; }
  .tm-page .tmm-view { aspect-ratio: 16 / 9; border-radius: 16px; }
  .tm-page .tmm-ph-layer { font-size: 17cqi; }
  .tm-page .tmm-ph-text { padding-top: 28cqi; }
  .tm-page .tmm-px-text { font-size: 11cqi; }
  .tm-page .tmm-bar { gap: 4px 18px; }
  .tm-page .tmm-bar-end { gap: 18px; }
  .tm-page .tmm-offnote { order: 5; flex-basis: 100%; }
  .tm-page .tmm-ctl { grid-template-columns: minmax(0, 1fr); }
  .tm-page .tmm-col { padding: 16px 0 12px; }
  .tm-page .tmm-col + .tmm-col { border-top: 1px solid var(--tm-rule); }
  .tm-page .tmm-col + .tmm-col::after { content: none; }
  .tm-page .tmm-cap { padding: 14px 0 16px; }
  .tm-page .tmm-badge { left: 14px; top: 12px; }
}
@media (max-width: 520px) {
  .tm-page .tmm-view { aspect-ratio: 4 / 3; }
  /* recordings are 16:9: show all of them (the live demos keep 4:3) */
  .tm-page .tmm.is-clip .tmm-view { aspect-ratio: 16 / 9; }
  .tm-page .tmm-bar { gap: 4px 14px; }
  .tm-page .tmm-ph-layer { font-size: 19cqi; }
  .tm-page .tmm-ph-text { padding-top: 36cqi; }
  .tm-page .tmm-opts { gap: 2px 16px; }
  .tm-page .tmm-tab-name { font-size: 16.5px; }
  .tm-page .tmm-tl-labels span { font-size: 9px; letter-spacing: 0.1em; }
}

/* ---------- stiller ---------- */
@media (prefers-reduced-motion: reduce) {
  .tm-page .tmm-opt::after, .tm-page .tmm-item::before, .tm-page .tmm-px-guide { transition: none; }
}

/* ---------- A/B comparison: A (On) over B (Off), split by a line you drag (2026-09-16) ---------- */
.tm-page .tmm-compare { display: block; }
.tm-page .tmm-ab {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
  border: 1px solid var(--line);
  border-radius: 16px;
  touch-action: pan-y pinch-zoom;
  cursor: ew-resize;
  -webkit-user-select: none;
  user-select: none;
}
.tm-page .tmm-ab-vid { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; background: #000; }
.tm-page .tmm-ab-a { z-index: 2; clip-path: inset(0 50% 0 0); }
.tm-page .tmm-ab-tag,
.tm-page .tmm-ab-hint {
  position: absolute;
  z-index: 5;
  font: 600 11px/1.4 "Inter", sans-serif;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(159, 182, 255, 0.85);
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
/* each tag is a full-size layer clipped like its own footage, so it travels with it */
.tm-page .tmm-ab-tag { inset: 0; padding: 16px 20px; clip-path: inset(0 50% 0 0); }
.tm-page .tmm-ab-tag-b { text-align: right; clip-path: inset(0 0 0 50%); }
.tm-page .tmm-ab-hint { left: 20px; bottom: 14px; color: rgba(159, 182, 255, 0.7); }
.tm-page .tmm.is-ab-used .tmm-ab-hint { opacity: 0; }
/* the line is a full-size layer moved by its own width, so no measuring is needed */
.tm-page .tmm-ab-line {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  transform: translate3d(50%, 0, 0);
  will-change: transform;
}
.tm-page .tmm-ab-line::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(205, 216, 255, 0.9);
  box-shadow: 1px 0 0 rgba(0, 0, 0, 0.35), -1px 0 0 rgba(0, 0, 0, 0.35);
}
.tm-page .tmm-ab-knob {
  position: absolute;
  /* the split position, kept 22px inside either edge so the knob and its ring stay whole */
  left: calc(clamp(22px, var(--ab, 0.5) * 100%, 100% - 22px) - var(--ab, 0.5) * 100%);
  top: 80%;
  width: 34px;
  height: 34px;
  margin: -17px 0 0 -17px;
  border-radius: 50%;
  border: 1px solid rgba(205, 216, 255, 0.9);
  background: rgba(3, 5, 15, 0.62);
  color: #e9edff;
  display: grid;
  place-items: center;
  pointer-events: auto;
  cursor: ew-resize;
}
.tm-page .tmm-ab-knob svg { width: 14px; height: 10px; display: block; }
.tm-page .tmm-ab-knob:focus-visible { outline: 2px solid var(--tm-ice); outline-offset: 3px; box-shadow: 0 0 0 3px rgba(3, 5, 15, 0.85); }
.tm-page .tmm-ab-caps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 40px;
  padding: 16px 2px 0;
}
.tm-page .tmm-ab-cap { min-width: 0; }
.tm-page .tmm-ab-cap .tmm-label { display: block; }
.tm-page .tmm-ab-cap:last-child { text-align: right; }
.tm-page .tmm-ab-cap:last-child .tmm-cmp-note { margin-left: auto; }
.tm-page .tmm-cmp-note { display: block; margin-top: 6px; font-size: 14px; line-height: 1.5; color: var(--tm-soft); max-width: 36ch; }
@media (max-width: 820px) {
  .tm-page .tmm-ab { border-radius: 14px; }
  .tm-page .tmm-ab-tag { padding: 12px 14px; }
  .tm-page .tmm-ab-hint { left: 14px; bottom: 10px; }
  .tm-page .tmm-ab-knob { top: 76%; }
  .tm-page .tmm-ab-caps { gap: 0 22px; }
}
@media (max-width: 520px) {
  .tm-page .tmm-ab-caps { grid-template-columns: minmax(0, 1fr); gap: 0; padding-top: 4px; }
  .tm-page .tmm-ab-cap { padding: 14px 0; }
  .tm-page .tmm-ab-cap + .tmm-ab-cap { border-top: 1px solid var(--tm-rule); }
  .tm-page .tmm-ab-cap:last-child { text-align: left; }
  .tm-page .tmm-ab-cap:last-child .tmm-cmp-note { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .tm-page .tmm-ab-tag, .tm-page .tmm-ab-hint { transition: none; }
}
html[data-motion="off"] .tm-page .tmm-ab-tag, html[data-motion="off"] .tm-page .tmm-ab-hint { transition: none; }

/* phone audit (2026-09-16): the recording caption stacks label over note */
@media (max-width: 820px) {
  .tm-page .tmm-clipcap .tmm-label { display: block; margin: 0 0 6px; }
}