/* Audiology & Speech-Language Pathology — Anatomy Studio
   Shell design system — "Cadaver Lab": warm slate, copper selection, sage layer state.
   Spectral display / Archivo interface. 3D engine untouched; every JS hook preserved. */

:root {
  --ink: #100d09;
  --shell: #1d1a13;
  --panel: #1a1811;
  --panel-2: #221f16;
  --panel-3: #2a2419;
  --line: #332d22;
  --line-soft: #29241b;
  --text: #f0e7d8;
  --text-2: #cfc4b2;
  --muted: #9b917f;
  --accent: #7e9e86;
  --accent-dim: #2c3d31;
  --accent-ink: #2b1508;
  --amber: #c9743e;
  --amber-dim: #3d2611;
  --warn: #e2b15a;
  --danger: #d36b6b;
  --ok: #6fbf8a;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  --shadow-sm: 0 6px 18px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --radius-sm: 9px;
  --rail-w: 300px;
  --side-w: 366px;
  --sans: "Archivo", ui-sans-serif, system-ui, sans-serif;
  --serif: "Spectral", "Libre Baskerville", Georgia, serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: #9dbfa8; text-decoration: underline; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2f2a1f; border-radius: 99px; border: 3px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: #46402f; background-clip: content-box; }

.app { min-height: 100%; height: 100%; display: flex; flex-direction: column; }
.sheet-tools { display: none; }
.drawer-mask {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8, 6, 4, 0.55);
  z-index: 12;
  border: 0;
}
.mobile-dock {
  display: none;
  flex-shrink: 0;
  z-index: 16;
  background: var(--shell);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.mobile-dock .btn {
  flex: 1;
  min-height: 44px;
  justify-content: center;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-2);
}
.mobile-dock .btn[aria-expanded="true"] {
  background: var(--amber-dim);
  color: #f2c9a4;
}

/* ── Top bar ─────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 20px;
  background: var(--shell);
  border-bottom: 1px solid var(--line);
  flex-wrap: nowrap;
  min-width: 0;
}
.brand { display: flex; align-items: center; gap: 14px; min-width: 0; }
.logo {
  width: 40px; height: 40px; border-radius: 11px;
  background: linear-gradient(160deg, #e0a065, #a8551f 70%);
  display: grid; place-items: center;
  font-weight: 600; font-size: 15px; letter-spacing: 0.04em;
  color: var(--accent-ink);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.35);
  flex: none;
}
.brand h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.005em;
  line-height: 1.2;
}
.brand h1 .short { color: var(--muted); font-family: var(--sans); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; margin-left: 10px; }
.brand p { margin: 3px 0 0; color: var(--muted); font-size: 12.5px; }
.brand .credit { margin-top: 2px; color: var(--accent); font-size: 11.5px; letter-spacing: 0.02em; }

.top-actions { display: flex; align-items: center; gap: 8px; flex-wrap: nowrap; min-width: 0; overflow-x: auto; }

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  border-radius: var(--radius-sm);
  padding: 8px 13px;
  font-size: 13px;
  line-height: 1.2;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}
.btn:hover { background: var(--panel-3); border-color: #4a3d27; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn.primary { background: #8a4a1d; border-color: #a8551f; color: #ffeada; }
.btn.primary:hover { background: #a05623; }
.btn.ghost { background: transparent; }
.btn.ghost:hover { background: var(--panel-2); }
.btn.toggle-on { background: var(--amber-dim); border-color: #6d4a24; color: #f2c9a4; }
.btn input[type="checkbox"] { accent-color: var(--accent); margin: 0; }

/* ── Layout ──────────────────────────────────────────── */
.layout {
  flex: 1;
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr) var(--side-w);
  min-height: 0;
  transition: grid-template-columns 200ms ease;
}
body.rail-off .layout { grid-template-columns: 0 minmax(0, 1fr) var(--side-w); }
body.side-off .layout { grid-template-columns: var(--rail-w) minmax(0, 1fr) 0; }
body.rail-off.side-off .layout { grid-template-columns: 0 minmax(0, 1fr) 0; }

.rail, .side {
  background: var(--panel);
  overflow: auto;
  padding: 16px 14px 24px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.rail { border-right: 1px solid var(--line); }
.side { border-left: 1px solid var(--line); }
body.rail-off .rail, body.side-off .side { padding: 0; border: 0; overflow: hidden; }

.panel-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
  margin: 0 0 10px;
}
.panel-head + .panel-head { margin-top: 18px; }
.rail h2, .side h2, .stage-caption h2 {
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
}
.panel-head .count { font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; }

.search {
  width: 100%;
  padding: 9px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: #120f0a;
  margin-bottom: 12px;
  font-size: 13px;
}
.search::placeholder { color: #7d7565; }
.search:focus { outline: none; border-color: var(--accent); background: #16130d; }

/* Module rail */
#moduleList { display: flex; flex-direction: column; gap: 2px; }
.mod {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 9px 11px 9px 12px;
  font-size: 13px;
  line-height: 1.35;
  position: relative;
  transition: background 120ms ease;
}
.mod:hover { background: var(--panel-2); }
.mod b {
  display: inline-block;
  min-width: 34px;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.mod small { display: block; color: var(--muted); font-size: 11px; margin-top: 3px; padding-left: 34px; }
.mod.active { background: var(--panel-3); border-color: #4a3d27; }
.mod.active b { color: var(--amber); }
.mod.active::before {
  content: ""; position: absolute; left: 0; top: 8px; bottom: 8px;
  width: 2px; border-radius: 2px; background: var(--amber);
}

/* ── Stage ───────────────────────────────────────────── */
.stage { position: relative; background: #16110d; overflow: hidden; container-type: size; container-name: stage; }
#view { width: 100%; height: 100%; display: block; touch-action: none; }

.toolbar {
  position: absolute;
  top: 14px; left: 14px;
  display: flex; gap: 6px; flex-wrap: wrap;
  z-index: 2;
  padding: 5px;
  border-radius: 12px;
  background: rgba(22, 17, 13, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
}
.toolbar .btn { background: transparent; border-color: transparent; padding: 7px 12px; }
.toolbar .btn:hover { background: rgba(255,255,255,0.07); border-color: transparent; }
.toolbar .btn.primary { background: #8a4a1d; border-color: #a8551f; color: #ffeada; }

.stage-tools {
  position: absolute;
  top: 14px; right: 14px;
  display: flex; gap: 6px;
  z-index: 3;
}
.icon-btn {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(22, 17, 13, 0.76);
  backdrop-filter: blur(14px);
  color: var(--text-2);
  font-size: 13px;
}
.icon-btn:hover { color: var(--text); background: rgba(42, 36, 25, 0.92); }
.rail-toggle { position: absolute; z-index: 4; }

.stage-caption {
  position: absolute;
  left: 14px; right: 14px; bottom: 14px;
  pointer-events: none;
  z-index: 1;
}
.stage-caption .card {
  pointer-events: none;
  max-width: 560px;
  background: rgba(22, 17, 13, 0.84);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius);
  padding: 13px 16px 14px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}
.stage-caption h3 {
  margin: 7px 0 5px;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.2;
}
.stage-caption p { margin: 0; color: var(--text-2); font-size: 13.5px; line-height: 1.5; }
.tags { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 10px; }
.tag {
  font-size: 10.5px;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text-2);
}

/* ── Layer toggles ───────────────────────────────────── */
.layers { display: flex; flex-direction: column; gap: 2px; margin: 0 0 4px; }
.layer {
  display: flex; align-items: center; gap: 9px;
  width: 100%;
  text-align: left;
  font-size: 12.5px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  padding: 7px 10px;
  color: var(--muted);
  transition: background 120ms ease, color 120ms ease;
}
.layer::before {
  content: "";
  width: 9px; height: 9px; border-radius: 3px;
  border: 1px solid #4a3d27;
  background: transparent;
  flex: none;
  transition: background 120ms ease, border-color 120ms ease;
}
.layer:hover { background: var(--panel-2); color: var(--text-2); }
.layer.on { color: var(--text); background: var(--panel-2); border-color: var(--line); }
.layer.on::before { background: var(--accent); border-color: var(--accent); }
.layer[data-layer="clinic"].on::before { background: var(--amber); border-color: var(--amber); }
.layer[data-layer="clinic"].on { color: #f2c9a4; }

/* ── Parts list ──────────────────────────────────────── */
.parts {
  max-height: 208px;
  overflow: auto;
  margin: 0 0 18px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding-right: 2px;
}
.parts .muted { color: var(--muted); font-size: 12.5px; line-height: 1.5; margin: 0 0 8px; }
.part {
  text-align: left;
  font-size: 12px;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 7px;
  padding: 6px 9px;
  color: var(--text-2);
}
.part:hover { background: var(--panel-2); color: var(--text); }
.part.on { background: var(--amber-dim); border-color: #7a4a20; color: #f2c9a4; }

/* ── Tabs + panel blocks ─────────────────────────────── */
.tabs {
  display: flex;
  gap: 2px;
  margin: 2px 0 14px;
  padding: 3px;
  background: var(--panel-2);
  border: 1px solid var(--line-soft);
  border-radius: 11px;
}
.tabs .btn {
  flex: 1;
  justify-content: center;
  padding: 7px 4px;
  font-size: 12.5px;
  background: transparent;
  border-color: transparent;
  color: var(--muted);
  border-radius: 8px;
}
.tabs .btn:hover { background: rgba(255,255,255,0.04); color: var(--text-2); }
.tabs .btn.active { background: var(--panel-3); border-color: #4a3d27; color: var(--text); }

#sideContent { display: flex; flex-direction: column; gap: 10px; }
.panel-block {
  background: var(--panel-2);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 14px 15px;
}
.panel-block h3 {
  margin: 0 0 9px;
  font-family: var(--serif);
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: 0.005em;
}
.panel-block p, .panel-block li { color: var(--text-2); font-size: 13px; line-height: 1.6; }
.panel-block p { margin: 0 0 8px; }
.panel-block p:last-child { margin-bottom: 0; }
.panel-block p b { color: var(--text); font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; }
.panel-block ol, .panel-block ul { margin: 6px 0 10px; padding-left: 17px; }
.panel-block ol:last-child, .panel-block ul:last-child { margin-bottom: 0; }
.panel-block li { margin-bottom: 5px; padding-left: 2px; }
.panel-block li::marker { color: var(--amber); }
.panel-block .btn { margin: 2px 0 12px; font-size: 12px; padding: 6px 11px; }
.credit-line { margin-top: 10px; color: var(--accent); font-size: 11.5px; }

.qa { width: 100%; margin-top: 12px; }
.qa label {
  display: block;
  margin: 10px 0 5px;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.qa input, .qa textarea {
  width: 100%;
  background: #120f0a;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 9px 10px;
  font-size: 13px;
  resize: vertical;
}
.qa input:focus, .qa textarea:focus { outline: none; border-color: var(--accent); }
.qa input::placeholder, .qa textarea::placeholder { color: #7d7565; }

/* ── Home / curriculum overlay ───────────────────────── */
.home {
  position: absolute;
  inset: 0;
  overflow: auto;
  padding: 44px 40px 56px;
  z-index: 3;
  background:
    radial-gradient(120% 80% at 82% -14%, rgba(201, 116, 62, 0.16), transparent 60%),
    linear-gradient(180deg, #1d1a13, var(--ink) 70%);
}
.hero { max-width: 1080px; margin: 0 auto; }
.hero .eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 14px;
}
.hero h2 {
  font-family: var(--serif);
  font-size: clamp(30px, 3.6vw, 46px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  max-width: 22ch;
  text-wrap: balance;
}
.hero p { font-size: 15.5px; color: var(--text-2); max-width: 68ch; line-height: 1.62; margin: 0 0 12px; }
.hero .byline { font-size: 13.5px; color: var(--amber); margin: 0 0 18px; }
.hero .fine { font-size: 12.5px; color: var(--muted); max-width: 72ch; }
.hero .cta { display: flex; gap: 10px; flex-wrap: wrap; margin: 22px 0 6px; }
.hero .cta .btn { padding: 11px 18px; font-size: 13.5px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 232px), 1fr));
  gap: 10px;
  margin-top: 26px;
}
.tile {
  text-align: left;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 15px 16px 16px;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--serif);
  font-size: 15px;
  line-height: 1.3;
  transition: border-color 130ms ease, background 130ms ease, transform 130ms ease;
}
.tile:hover { border-color: #4a3d27; background: var(--panel-2); }
.tile b {
  display: block;
  font-family: var(--sans);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--amber);
}
.tile span { margin-top: auto; color: var(--muted); font-size: 11.5px; font-family: var(--sans); }

/* ── Loader, toast, on-model labels ──────────────────── */
.loader {
  position: absolute; inset: 0;
  display: none; align-items: center; justify-content: center;
  background: rgba(16, 13, 9, 0.62);
  backdrop-filter: blur(3px);
  z-index: 5;
  pointer-events: none;
}
.loader > div {
  width: min(400px, 82%);
  background: rgba(29, 26, 19, 0.96);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
}
.loader p { margin: 0 0 11px; font-size: 12.5px; color: var(--text-2); }
.bar { height: 4px; background: #120f0a; border-radius: 99px; overflow: hidden; }
.bar span { display: block; height: 100%; width: 8%; background: linear-gradient(90deg, #8a4a1d, var(--amber)); transition: width 220ms ease; }

.toast {
  position: fixed;
  right: 18px; bottom: 18px;
  background: rgba(29, 26, 19, 0.96);
  border: 1px solid var(--line);
  border-left: 2px solid var(--amber);
  color: var(--text);
  padding: 11px 14px;
  border-radius: 10px;
  display: none;
  font-size: 13px;
  box-shadow: var(--shadow);
  z-index: 20;
  max-width: 340px;
}

.pick-label,
.explain {
  display: none;
  position: absolute;
  top: 58px;
  left: 12px;
  width: min(360px, calc(100% - 24px));
  max-height: min(52%, 440px);
  overflow: auto;
  background: rgba(18, 14, 10, 0.94);
  border: 1px solid rgba(201, 116, 62, 0.5);
  border-left: 3px solid var(--amber);
  color: var(--text);
  padding: 12px 14px 14px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.45;
  backdrop-filter: blur(12px);
  z-index: 5;
  box-shadow: var(--shadow-sm);
}
.explain.open { display: block; }
.explain h3 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  margin: 2px 0 8px;
  padding-right: 28px;
  color: #f2c9a4;
  line-height: 1.2;
}
.explain-kicker {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.explain-meta { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 8px; }
.ex-chip {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
}
.explain-fn, .explain-clinic, .explain-mod, .explain-aka {
  margin: 0 0 8px;
  color: var(--text-2);
}
.explain-clinic b, .explain-mod b { color: var(--warn); font-weight: 600; }
.explain-aka { font-size: 11.5px; color: var(--muted); margin-bottom: 0; }
.explain-close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
}
.explain-close:hover { color: var(--text); background: var(--amber-dim); }
.part-explain {
  display: none;
  margin: 0 14px 12px;
  padding: 12px 14px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.45;
  position: relative;
}
.part-explain.open { display: block; }
.part-explain h3 {
  font-family: var(--serif);
  font-size: 18px;
  margin: 2px 0 8px;
  padding-right: 28px;
  color: #f2c9a4;
}
.part-explain .explain-kicker,
.part-explain .explain-fn,
.part-explain .explain-clinic,
.part-explain .explain-mod,
.part-explain .explain-aka { margin: 0 0 8px; }
.part-explain .explain-meta { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 8px; }

.world-labels { position: absolute; inset: 0; pointer-events: none; z-index: 4; overflow: hidden; }

/* Leader lines: anchor dot on the structure, elbow, then the label in a gutter. */
.label-lines {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  overflow: visible;
}
.label-lines .ll {
  fill: none;
  stroke: rgba(240, 231, 216, 0.34);
  stroke-width: 1;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.label-lines .ll.on { stroke: var(--amber); stroke-width: 1.6; }
.label-lines .ld {
  fill: rgba(240, 231, 216, 0.9);
  stroke: rgba(22, 17, 13, 0.85);
  stroke-width: 1;
}
.label-lines .ld.on { fill: var(--amber); stroke: rgba(22, 17, 13, 0.95); stroke-width: 1.4; }

.wlab {
  position: absolute;
  transform: translateY(-50%);
  pointer-events: auto;
  font-size: 11px;
  padding: 5px 10px;
  min-height: 22px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(22, 17, 13, 0.82);
  color: var(--text-2);
  white-space: nowrap;
  max-width: 190px;
  overflow: hidden;
  text-overflow: ellipsis;
  backdrop-filter: blur(6px);
  cursor: pointer;
  touch-action: manipulation;
  z-index: 4;
}
.wlab:hover { color: var(--text); border-color: rgba(255,255,255,0.34); }
.wlab.on { background: rgba(61, 38, 17, 0.94); border-color: var(--amber); color: #f2c9a4; }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 1400px) {
  .brand p { display: none; }
}
@media (max-width: 1320px) {
  .brand h1 .full-title { display: none; }
  .brand h1 .short {
    display: inline;
    margin-left: 0;
    font-size: 15px;
    letter-spacing: 0.12em;
    color: var(--text);
  }
}
@media (max-width: 1240px) {
  :root { --rail-w: 258px; --side-w: 320px; }
}
@media (max-width: 1040px) {
  html, body {
    height: 100%;
    height: 100dvh;
    overflow: hidden;
  }
  .app {
    min-height: 100dvh;
    height: 100dvh;
    overflow: hidden;
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  .topbar {
    flex-wrap: nowrap;
    padding: 8px 12px;
    padding-top: calc(8px + env(safe-area-inset-top));
    gap: 10px;
  }
  .brand p { display: none; }
  .brand h1 .full-title { display: none; }
  .brand h1 .short {
    display: inline;
    margin-left: 0;
    font-size: 15px;
    letter-spacing: 0.12em;
    color: var(--text);
  }
  .top-actions > :not(.mode-switch) { display: none; }
  .mode-switch .btn { padding: 6px 10px; }
  .layout, body.rail-off .layout, body.side-off .layout {
    display: block;
    flex: 1;
    min-height: 0;
    position: relative;
    grid-template-columns: none;
  }
  .stage { height: 100%; min-height: 0; }
  .rail, .side {
    position: fixed;
    top: 0;
    bottom: calc(56px + env(safe-area-inset-bottom));
    width: min(360px, 92vw);
    max-height: none;
    z-index: 14;
    padding-top: calc(16px + env(safe-area-inset-top));
    border: 0;
    box-shadow: var(--shadow);
    visibility: hidden;
    pointer-events: none;
    transition: transform 400ms cubic-bezier(0.22, 1, 0.36, 1), visibility 150ms;
  }
  .rail {
    left: 0;
    transform: translateX(-110%);
    border-right: 1px solid var(--line);
  }
  .side {
    right: 0;
    left: auto;
    transform: translateX(110%);
    border-left: 1px solid var(--line);
  }
  body.drawer-rail .rail,
  body.drawer-side .side {
    transform: none;
    visibility: visible;
    pointer-events: auto;
  }
  body.drawer-rail .drawer-mask,
  body.drawer-side .drawer-mask { display: block; }
  body.rail-off .rail, body.side-off .side { display: flex; }
  .mobile-dock { display: flex; }
  .sheet-tools {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
  }
  .stage-tools { display: none; }
  .home { padding: 22px 16px 28px; }
  .toolbar { left: 8px; right: 8px; top: 8px; }
  .btn-rest { display: none; }
  .stage-caption { left: 8px; right: 8px; bottom: 8px; }
  .stage-caption h3 { font-size: 17px; }
  /* Compact caption so the mesh has more usable vertical framing. */
  .stage-caption p, .stage-caption .tags { display: none; }
  .stage-caption .card { padding: 10px 12px 12px; max-width: none; }
  .wlab {
    font-size: 9.5px;
    padding: 2px 6px;
    max-width: min(150px, 46vw);
  }
  .explain {
    top: auto;
    bottom: 8px;
    left: 8px;
    right: 8px;
    width: auto;
    max-height: 40%;
  }
  .stage:has(.explain.open) .stage-caption { display: none; }
  .tweaks { bottom: calc(68px + env(safe-area-inset-bottom)); right: 12px; width: min(292px, calc(100vw - 24px)); }
  .toast { left: 12px; right: 12px; bottom: calc(68px + env(safe-area-inset-bottom)); max-width: none; }
}

/* Phones: tighten caption further; stage already fills layout between topbar + dock. */
@media (max-width: 600px) {
  .stage-caption h2 { display: none; }
  .stage-caption h3 { font-size: 15px; }
  .stage-caption .card { padding: 8px 11px; }
}

/* Tablet: wider sheets, keep the 3D stage */
@media (min-width: 700px) and (max-width: 1040px) {
  .rail, .side { width: min(420px, 48vw); }
}

/* Landscape phone: reclaim vertical space for the mesh */
@media (max-height: 500px) {
  .topbar { padding: 4px 10px; padding-top: max(4px, env(safe-area-inset-top)); }
  .logo { width: 28px; height: 28px; border-radius: 8px; font-size: 12px; }
  .brand h1 .short { font-size: 13px; }
  .mode-switch .btn { padding: 4px 8px; }
  .mobile-dock .btn { min-height: 40px; font-size: 12px; }
  .stage-caption p, .stage-caption .tags, .stage-caption h2 { display: none; }
  .toolbar { top: 6px; left: 6px; padding: 3px; }
}

@container stage (max-height: 420px) {
  .stage-caption p, .stage-caption .tags { display: none; }
}
@container stage (max-width: 560px) {
  .btn-rest { display: none; }
  .toolbar .btn { padding: 6px 9px; font-size: 12px; }
}

@media (hover: hover) and (pointer: fine) {
  .tile:hover { transform: translateY(-1px); }
}

@media (pointer: coarse) {
  .btn, .layer, .mod, .part, .tile, .search, .icon-btn {
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rail, .side { transition: none; }
}


/* ── Mode switch ─────────────────────────────────────── */
.mode-switch {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: var(--panel-2);
  border: 1px solid var(--line-soft);
  border-radius: 11px;
}
.mode-switch .btn { background: transparent; border-color: transparent; color: var(--muted); padding: 6px 14px; }
.mode-switch .btn:hover { background: rgba(255,255,255,0.04); color: var(--text-2); }
.mode-switch .btn.active { background: var(--panel-3); border-color: #4a3d27; color: var(--text); }

/* ── Credentials footer ──────────────────────────────── */
.credentials {
  flex-shrink: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 28px;
  padding: 8px 20px 10px;
  background: var(--shell);
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
  z-index: 8;
}
.credentials .cred-left { min-width: 0; }
.credentials .cred-by {
  margin: 0;
  color: var(--text-2);
  font-size: 12px;
  letter-spacing: 0.02em;
}
.credentials .cred-fine {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 11px;
}
.credentials .cred-contrib {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 11px;
}
.credentials .cred-dedicate {
  margin: 0;
  text-align: right;
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  flex: none;
}
.credentials .cred-dedicate i {
  font-family: var(--serif);
  font-style: italic;
  color: var(--text-2);
}
.credentials a { color: var(--text-2); text-decoration: none; border-bottom: 1px solid transparent; }
.credentials a:hover { color: var(--text); border-bottom-color: var(--muted); }

/* ── Faculty workspace ───────────────────────────────── */
.faculty {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 30;
  overflow: auto;
  background:
    radial-gradient(120% 70% at 84% -12%, rgba(201, 116, 62, 0.14), transparent 58%),
    linear-gradient(180deg, #1d1a13, var(--ink) 62%);
}
.fac-wrap { max-width: 1320px; margin: 0 auto; padding: 34px 30px 60px; }
.fac-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: 22px; }
.fac-top .eyebrow { margin: 0 0 8px; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--amber); }
.fac-top h2 { margin: 0 0 8px; font-family: var(--serif); font-size: clamp(24px, 2.6vw, 34px); font-weight: 600; line-height: 1.15; max-width: 26ch; }
.fac-meta { margin: 0; font-size: 12.5px; color: var(--muted); }
.fac-top-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.fac-select { display: flex; align-items: center; gap: 8px; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.fac-select select {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  max-width: 300px;
}
.fac-tabs { max-width: 480px; }
.fac-body { display: flex; flex-direction: column; gap: 12px; }
.fac-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 12px; align-items: start; }
.fac-filters { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 14px; }
.fac-filters .btn { padding: 6px 11px; font-size: 12px; }
.fac-scroll { overflow: auto; max-height: 62vh; border: 1px solid var(--line-soft); border-radius: 12px; }

.fac-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.fac-table th, .fac-table td {
  text-align: left;
  vertical-align: top;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-2);
  line-height: 1.5;
}
.fac-table thead th {
  position: sticky;
  top: 0;
  background: var(--panel-3);
  color: var(--text);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  z-index: 1;
}
.fac-table td.code { font-weight: 600; color: var(--amber); white-space: nowrap; }
.fac-table .sub { color: var(--muted); font-size: 11px; margin-top: 3px; }
.fac-table ul.tight { margin: 0; padding-left: 15px; }
.fac-table ul.tight li { margin-bottom: 3px; }
.fac-table.plan td:first-child { white-space: nowrap; color: var(--muted); font-variant-numeric: tabular-nums; }

.fac-fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.fac-fields.inline { grid-template-columns: repeat(auto-fit, minmax(200px, 260px)); align-items: end; }
.fac-fields label { display: flex; flex-direction: column; gap: 5px; font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.fac-fields label.check { flex-direction: row; align-items: center; gap: 8px; text-transform: none; letter-spacing: 0; font-size: 12.5px; color: var(--text-2); }
.fac-fields input {
  background: #120f0a;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 9px 10px;
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text);
}
.fac-fields input:focus { outline: none; border-color: var(--amber); }
.fac-fields input[type="checkbox"] { width: auto; accent-color: var(--amber); }

.fac-sheets { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 12px; }
.fac-card {
  background: var(--panel-2);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 15px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.fac-card b { font-family: var(--serif); font-size: 16px; font-weight: 600; }
.fac-card p { margin: 0 0 4px; font-size: 12.5px; line-height: 1.55; color: var(--text-2); }
.fac-card .btn { align-self: flex-start; margin-top: auto; }

/* ── Print sheets ────────────────────────────────────── */
.print-host { display: none; }
.blank { display: flex; align-items: baseline; gap: 8px; margin: 6px 0; font-size: 12px; }
.blank span { color: #6b6355; min-width: 20px; }
.blank i { flex: 1; border-bottom: 1px solid #b9b2a4; height: 15px; font-style: normal; }
.blank.wide { flex: 2; }

@media print {
  @page { size: A4; margin: 14mm 12mm; }
  html, body { height: auto; background: #fff; color: #14110f; }
  body.printing .app, body.printing .faculty, body.printing .toast { display: none !important; }
  body.printing .print-host { display: block; }
  .print-sheet { font-family: "Archivo", system-ui, sans-serif; color: #14110f; font-size: 11pt; }
  .print-sheet a { color: #14110f; text-decoration: none; }
  .ps-head { display: flex; justify-content: space-between; gap: 16px; border-bottom: 2px solid #14110f; padding-bottom: 8px; margin-bottom: 10px; }
  .ps-kicker { font-size: 8pt; letter-spacing: 0.14em; text-transform: uppercase; color: #6b6355; }
  .ps-head h1 { font-family: "Spectral", Georgia, serif; font-size: 18pt; margin: 3px 0 3px; font-weight: 600; }
  .ps-sub { font-size: 10pt; color: #4a4238; }
  .ps-meta { text-align: right; font-size: 8.5pt; color: #4a4238; line-height: 1.5; }
  .ps-fields { display: flex; gap: 18px; margin-bottom: 12px; }
  .ps-fields .blank { flex: 1; }
  .ps-instr { font-size: 9.5pt; color: #4a4238; margin: 0 0 10px; }
  .print-sheet h2 { font-family: "Spectral", Georgia, serif; font-size: 12pt; margin: 14px 0 6px; border-bottom: 1px solid #ccc4b4; padding-bottom: 3px; }
  .ps-label-wrap { display: flex; gap: 16px; align-items: flex-start; }
  .ps-figure { position: relative; flex: 1 1 62%; border: 1px solid #ccc4b4; }
  .ps-figure img { width: 100%; display: block; }
  .ps-noimg { padding: 24px; font-size: 9.5pt; color: #6b6355; }
  .ps-pin {
    position: absolute;
    transform: translate(-50%, -50%);
    min-width: 16px; height: 16px;
    border-radius: 50%;
    border: 1.2px solid #14110f;
    background: #fff;
    color: #14110f;
    font-size: 8pt;
    font-weight: 600;
    display: grid;
    place-items: center;
  }
  .ps-answers { flex: 1 1 38%; margin: 0; padding-left: 20px; }
  .ps-answers li { margin-bottom: 11px; font-size: 10pt; }
  .ps-answers li i { display: block; border-bottom: 1px solid #b9b2a4; height: 14px; }
  .ps-tasks { margin: 0 0 8px; padding-left: 20px; }
  .ps-tasks li { font-size: 10.5pt; margin-bottom: 9px; line-height: 1.45; }
  .ps-tasks li i { display: block; border-bottom: 1px solid #b9b2a4; height: 15px; margin-top: 5px; }
  .ps-tasks.tight li { margin-bottom: 4px; }
  .ps-ans { font-size: 9.5pt; color: #6b3a12; margin-top: 3px; }
  .ps-cols { columns: 2; column-gap: 24px; }
  .fac-table.print, .print-sheet .fac-table { width: 100%; border-collapse: collapse; font-size: 9.5pt; }
  .print-sheet .fac-table th, .print-sheet .fac-table td { border: 1px solid #ccc4b4; padding: 5px 7px; color: #14110f; }
  .print-sheet .fac-table thead th { background: #f0ece2; text-transform: uppercase; font-size: 8pt; letter-spacing: 0.08em; }
  .print-sheet .fac-grid { display: block; }
  .print-sheet .panel-block { background: none; border: 0; padding: 0; margin-bottom: 14px; }
  .print-sheet .panel-block h3 { font-family: "Spectral", Georgia, serif; font-size: 12pt; margin: 0 0 6px; }
  .print-sheet .panel-block p, .print-sheet .panel-block li { color: #14110f; font-size: 10pt; }
  .print-sheet .tag { border: 1px solid #ccc4b4; color: #4a4238; background: none; }
  .print-sheet .fac-filters, .print-sheet .fac-scroll { display: block; max-height: none; border: 0; overflow: visible; }
  .print-sheet .fac-filters { display: none; }
  .ps-foot { margin-top: 18px; padding-top: 8px; border-top: 1px solid #ccc4b4; font-size: 8pt; color: #4a4238; line-height: 1.5; }
  .ps-foot b { color: #14110f; }
}

@media (max-width: 1040px) {
  .fac-wrap { padding: 24px 18px 44px; }
  .credentials { padding: 8px 14px 10px; flex-wrap: wrap; }
  .credentials .cred-dedicate { white-space: normal; font-size: 10.5px; }
  .fac-grid { grid-template-columns: 1fr; }
  .fac-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .fac-table { min-width: 640px; }
}


/* ── Tweaks panel ────────────────────────────────────── */
.tweaks {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 292px;
  z-index: 40;
  display: none;
  flex-direction: column;
  gap: 14px;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.tweaks.open { display: flex; }
.tw-head { display: flex; align-items: center; justify-content: space-between; }
.tw-head h2 { margin: 0; font-size: 11px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.tw-close { background: none; border: 0; color: var(--muted); font-size: 13px; padding: 2px 4px; }
.tw-close:hover { color: var(--text); }
.tw-group { display: flex; flex-direction: column; gap: 6px; }
.tw-label { font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.tw-seg { display: flex; gap: 2px; padding: 3px; background: var(--panel-2); border: 1px solid var(--line-soft); border-radius: 10px; }
.tw-opt {
  flex: 1;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 7px;
  padding: 7px 4px;
  font-size: 11.5px;
  color: var(--muted);
}
.tw-opt:hover { background: rgba(255,255,255,0.05); color: var(--text-2); }
.tw-opt.on { background: var(--panel-3); border-color: #4a3d27; color: var(--text); }
.tw-note { margin: 0; font-size: 11.5px; line-height: 1.45; color: var(--text-2); }
.tw-reset { background: none; border: 0; color: var(--muted); font-size: 11.5px; text-align: left; padding: 0; }
.tw-reset:hover { color: var(--amber); }

/* Theme: bone & ink (light instrument panel, dark specimen) */
body[data-theme="ink"] {
  --ink: #ece8df; --shell: #fbf9f4; --panel: #f4f1ea; --panel-2: #ffffff; --panel-3: #e9e4d8;
  --line: #ddd7cb; --line-soft: #e7e2d6;
  --text: #1a1a17; --text-2: #4a4a44; --muted: #7a766c;
  --accent: #0f6e66; --accent-dim: #dcebe8; --accent-ink: #06231f;
  --amber: #a8551f; --amber-dim: #f6e7d8;
  --shadow: 0 20px 46px rgba(40, 32, 20, 0.16);
  --shadow-sm: 0 4px 14px rgba(40, 32, 20, 0.1);
}
body[data-theme="ink"] .search,
body[data-theme="ink"] .qa input,
body[data-theme="ink"] .qa textarea,
body[data-theme="ink"] .fac-fields input { background: #fff; }
body[data-theme="ink"] .btn.primary { background: #0f6e66; border-color: #0f6e66; color: #f4f1ea; }
body[data-theme="ink"] .btn.primary:hover { background: #14867c; }
body[data-theme="ink"] .logo { background: linear-gradient(160deg, #2f9c92, #0f6e66 70%); color: #f2fbf9; }
body[data-theme="ink"] .home {
  background: radial-gradient(120% 80% at 82% -14%, rgba(15, 110, 102, 0.1), transparent 60%), linear-gradient(180deg, #fbf9f4, #ece8df 70%);
}
body[data-theme="ink"] .part.on,
body[data-theme="ink"] .layer[data-layer="clinic"].on { color: #7c3a06; }
body[data-theme="ink"] .toast { background: #fff; color: #1a1a17; }
body[data-theme="ink"] .loader > div { background: #fbf9f4; }
body[data-theme="ink"] ::-webkit-scrollbar-thumb { background: #cfc7b8; background-clip: content-box; }
body[data-theme="ink"] .faculty {
  background: radial-gradient(120% 70% at 84% -12%, rgba(168, 85, 31, 0.08), transparent 58%), linear-gradient(180deg, #fbf9f4, #ece8df 62%);
}

/* Theme: radiology (cool steel) */
body[data-theme="steel"] {
  --ink: #080b0f; --shell: #0e1319; --panel: #0e1319; --panel-2: #161d25; --panel-3: #1e2731;
  --line: #1e2731; --line-soft: #18202a;
  --text: #e9f1f5; --text-2: #aebbc6; --muted: #7d8b98;
  --accent: #55c7e8; --accent-dim: #17505f; --accent-ink: #03222b;
  --amber: #e0679b; --amber-dim: #3d2a35;
}
body[data-theme="steel"] .logo { background: linear-gradient(160deg, #7fe0f5, #1c6d85 70%); color: #03222b; }
body[data-theme="steel"] .search,
body[data-theme="steel"] .qa input,
body[data-theme="steel"] .qa textarea,
body[data-theme="steel"] .fac-fields input { background: #080b0f; }
body[data-theme="steel"] .btn.primary,
body[data-theme="steel"] .toolbar .btn.primary { background: #17505f; border-color: #2b7a8f; color: #d6f4fd; }
body[data-theme="steel"] .mod b,
body[data-theme="steel"] .fac-table td.code { font-family: "IBM Plex Mono", ui-monospace, monospace; }
body[data-theme="steel"] .home {
  background: radial-gradient(120% 80% at 82% -14%, rgba(85, 199, 232, 0.12), transparent 60%), linear-gradient(180deg, #0e1319, var(--ink) 70%);
}
body[data-theme="steel"] .stage { background: #0a1015; }
body[data-theme="steel"] .faculty {
  background: radial-gradient(120% 70% at 84% -12%, rgba(224, 103, 155, 0.12), transparent 58%), linear-gradient(180deg, #0e1319, var(--ink) 62%);
}

/* Teaching mode: lecture (projector) */
body[data-mode="lecture"] { --rail-w: 336px; --side-w: 408px; }
body[data-mode="lecture"] .btn { font-size: 14.5px; padding: 11px 16px; }
body[data-mode="lecture"] .mod { font-size: 15px; padding: 12px 13px; }
body[data-mode="lecture"] .mod small { font-size: 12.5px; }
body[data-mode="lecture"] .layer { font-size: 14.5px; padding: 11px 12px; }
body[data-mode="lecture"] .part { font-size: 14px; padding: 9px 11px; }
body[data-mode="lecture"] .parts { max-height: 260px; }
body[data-mode="lecture"] .panel-block p,
body[data-mode="lecture"] .panel-block li { font-size: 15px; }
body[data-mode="lecture"] .panel-block h3 { font-size: 18px; }
body[data-mode="lecture"] .stage-caption .card { max-width: 720px; padding: 16px 20px 18px; }
body[data-mode="lecture"] .stage-caption h3 { font-size: 27px; }
body[data-mode="lecture"] .stage-caption p { font-size: 16px; }
body[data-mode="lecture"] .tag { font-size: 12px; padding: 4px 10px; }
body[data-mode="lecture"] .wlab { font-size: 12.5px; padding: 3px 9px; }
body[data-mode="lecture"] .explain { font-size: 16px; padding: 14px 18px 16px; width: min(440px, calc(100% - 24px)); }
body[data-mode="lecture"] .explain h3 { font-size: 24px; }
body[data-mode="lecture"] .credentials { display: none; }

/* Teaching mode: focus */
body[data-mode="focus"] .toolbar,
body[data-mode="focus"] .stage-tools { opacity: 0.16; transition: opacity 220ms ease; }
body[data-mode="focus"] .stage:hover .toolbar,
body[data-mode="focus"] .stage:hover .stage-tools { opacity: 1; }
body[data-mode="focus"] .credentials,
body[data-mode="focus"] .stage-caption .tags,
body[data-mode="focus"] .stage-caption h2 { display: none; }
body[data-mode="focus"] .stage-caption .card { background: none; border: 0; box-shadow: none; backdrop-filter: none; max-width: 620px; padding: 0 4px; }
body[data-mode="focus"] .stage-caption h3 { font-size: 24px; }
body[data-mode="focus"] .topbar { padding: 8px 20px; }
body[data-mode="focus"] .brand p { display: none; }

/* Chrome: instrument (opaque, squared) */
body[data-chrome="solid"] { --radius: 6px; --radius-sm: 5px; }
body[data-chrome="solid"] .toolbar,
body[data-chrome="solid"] .icon-btn,
body[data-chrome="solid"] .stage-caption .card,
body[data-chrome="solid"] .pick-label,
body[data-chrome="solid"] .explain,
body[data-chrome="solid"] .wlab { backdrop-filter: none; border-radius: 4px; }
body[data-chrome="solid"] .toolbar { background: var(--shell); border-color: var(--line); }
body[data-chrome="solid"] .icon-btn { background: var(--shell); }
body[data-chrome="solid"] .stage-caption .card { background: var(--shell); border-color: var(--line); }
body[data-chrome="solid"] .pick-label,
body[data-chrome="solid"] .explain { background: var(--panel-3); }
body[data-chrome="solid"] .wlab { background: var(--shell); border-color: var(--line); }
body[data-chrome="solid"] .panel-block,
body[data-chrome="solid"] .fac-card,
body[data-chrome="solid"] .tile { border-radius: 4px; border-color: var(--line); }
body[data-chrome="solid"] .tabs,
body[data-chrome="solid"] .mode-switch,
body[data-chrome="solid"] .tw-seg { border-radius: 5px; }
body[data-chrome="solid"] .logo { border-radius: 4px; }

/* Chrome: bare (borderless) */
body[data-chrome="bare"] .panel-block,
body[data-chrome="bare"] .fac-card,
body[data-chrome="bare"] .tile,
body[data-chrome="bare"] .tabs,
body[data-chrome="bare"] .mode-switch {
  background: none;
  border: 0;
  padding-left: 0;
  padding-right: 0;
}
body[data-chrome="bare"] .panel-block { border-bottom: 1px solid var(--line-soft); border-radius: 0; padding-bottom: 14px; }
body[data-chrome="bare"] .fac-card { border-bottom: 1px solid var(--line-soft); border-radius: 0; }
body[data-chrome="bare"] .tile { border-bottom: 1px solid var(--line-soft); border-radius: 0; padding-left: 0; }
body[data-chrome="bare"] .tile:hover { background: none; border-color: var(--amber); }
body[data-chrome="bare"] .tabs { padding: 0 0 6px; border-bottom: 1px solid var(--line-soft); border-radius: 0; gap: 10px; }
body[data-chrome="bare"] .tabs .btn { background: none; border: 0; border-bottom: 2px solid transparent; border-radius: 0; padding: 6px 2px; }
body[data-chrome="bare"] .tabs .btn.active { background: none; border-bottom-color: var(--amber); color: var(--text); }
body[data-chrome="bare"] .mode-switch { padding: 0; gap: 6px; }
body[data-chrome="bare"] .mode-switch .btn { border-bottom: 2px solid transparent; border-radius: 0; padding: 6px 4px; }
body[data-chrome="bare"] .mode-switch .btn.active { background: none; border-bottom-color: var(--amber); }
body[data-chrome="bare"] .toolbar { background: none; border: 0; box-shadow: none; backdrop-filter: none; padding: 0; }
body[data-chrome="bare"] .toolbar .btn { background: rgba(0,0,0,0.45); backdrop-filter: blur(10px); }
body[data-chrome="bare"] .stage-caption .card { background: none; border: 0; box-shadow: none; padding: 0 2px; }
body[data-chrome="bare"] .rail, body[data-chrome="bare"] .side { background: var(--ink); }