/* fusion.css — Hero Phase 4: Multi-Modal Fusion */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #000;
  --surface:  #0c0c0e;
  --surface2: #141416;
  --surface3: #1c1c1e;
  --border:   rgba(255,255,255,0.07);
  --border2:  rgba(255,255,255,0.12);
  --cyan:     #00c8ff;
  --purple:   #7b50ff;
  --green:    #30d158;
  --red:      #ff453a;
  --orange:   #ff9f0a;
  --gray:     #86868b;
  --gray2:    #48484a;
  --font:     'Inter', -apple-system, sans-serif;
  --display:  'Syne', -apple-system, sans-serif;
  --ease:     cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: #fff;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

/* ── Nav ── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 48px;
  background: rgba(0,0,0,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  z-index: 20;
  position: relative;
}

.nav-back {
  font-size: 13px;
  color: var(--purple);
  text-decoration: none;
  transition: opacity 0.2s;
  min-width: 80px;
}
.nav-back:hover { opacity: 0.7; }

.nav-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-title {
  font-size: 13px;
  color: var(--gray);
  font-weight: 500;
}

.nav-phase-badge {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--purple);
  background: rgba(123,80,255,0.12);
  border: 1px solid rgba(123,80,255,0.3);
  border-radius: 4px;
  padding: 2px 6px;
}

/* ── Main layout ── */
.main {
  flex: 1;
  display: flex;
  min-height: 0;
  overflow: hidden;
}

/* ── Channel panels (left + right) ── */
.channel {
  display: flex;
  flex-direction: column;
  width: 360px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  overflow: hidden;
}

.channel--voice {
  border-right: none;
  border-left: 1px solid var(--border);
}

.ch-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--surface);
}

.ch-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
}

.ch-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.ch-dot--gesture  { background: var(--cyan);   box-shadow: 0 0 6px var(--cyan); }
.ch-dot--voice    { background: var(--purple); box-shadow: 0 0 6px var(--purple); }
.ch-dot--behavior { background: var(--green);  box-shadow: 0 0 6px var(--green); }

/* ── Status label ── */
.ch-status {
  font-size: 11px;
  color: var(--gray);
  font-weight: 500;
}
.ch-status.ready     { color: var(--green); }
.ch-status.listening { color: var(--purple); }
.ch-status.error     { color: var(--red); }

/* ── Gesture viewport ── */
.viewport-wrap {
  padding: 12px;
  flex-shrink: 0;
}

.viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--surface2);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border2);
}

.viewport video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
  opacity: 1;
}

.viewport canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: scaleX(-1);
}

.no-camera {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--surface2);
  font-size: 12px;
  color: var(--gray);
}
.no-camera.visible { display: flex; }

/* ── Channel body (signal data) ── */
.ch-body {
  padding: 8px 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}

.ch-signal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 22px;
}

.ch-signal-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray2);
  flex-shrink: 0;
  min-width: 72px;
}

.ch-signal-value {
  font-size: 13px;
  font-weight: 500;
  color: #fff;
  text-align: right;
}

.ch-intent-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.ch-intent-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray2);
  flex-shrink: 0;
  min-width: 72px;
}

.ch-intent {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.2);
  text-align: right;
  transition: color 0.3s;
  font-family: var(--display);
}

/* ── Confidence bar ── */
.conf-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.conf-track {
  flex: 1;
  height: 3px;
  background: var(--surface3);
  border-radius: 2px;
  overflow: hidden;
}

.conf-fill {
  height: 100%;
  width: 0%;
  background: var(--cyan);
  border-radius: 2px;
  transition: width 0.2s var(--ease);
}

.conf-fill--voice     { background: var(--purple); }
.conf-fill--behavior  { background: var(--green); }

.conf-val {
  font-size: 11px;
  color: var(--gray);
  min-width: 32px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ── Voice channel specifics ── */
.wave-wrap {
  padding: 8px 12px 4px;
  flex-shrink: 0;
}

.wave-wrap canvas {
  width: 100%;
  height: 52px;
  display: block;
}

.mic-wrap {
  padding: 8px 16px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.mic-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  color: #fff;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 14px 6px 10px;
  border-radius: 20px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.mic-btn:hover { background: var(--surface3); border-color: rgba(123,80,255,0.3); }
.mic-btn.active {
  background: rgba(123,80,255,0.18);
  border-color: rgba(123,80,255,0.5);
  color: #bf9fff;
}
.mic-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.not-supported {
  font-size: 11px;
  color: var(--red);
}

.transcript-wrap {
  padding: 8px 16px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}

.transcript {
  min-height: 32px;
  padding: 4px 0 2px;
  font-size: 13px;
  line-height: 1.5;
}

.transcript-interim {
  color: var(--gray);
  font-style: italic;
}

.transcript-final {
  color: #fff;
  font-weight: 500;
}

.hints-wrap {
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.hints {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.hint {
  background: var(--surface2);
  border: 1px solid var(--border2);
  color: rgba(255,255,255,0.7);
  font-family: var(--font);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.hint:hover {
  background: rgba(123,80,255,0.15);
  border-color: rgba(123,80,255,0.4);
  color: #bf9fff;
}

/* ═══════════════════════════════════════════════════════
   FUSION CENTER
   ═══════════════════════════════════════════════════════ */
.fusion-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 220px;
  overflow: hidden;
  background: var(--surface);
  position: relative;
}

/* Subtle radial gradient behind the fusion output */
.fusion-center::before {
  content: '';
  position: absolute;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(123,80,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.fusion-header {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  background: var(--surface2);
}

.fusion-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
}

/* ── Agreement indicator ── */
.f-agreement-dot {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--gray);
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}

.f-agreement-dot.agree {
  background: rgba(48,209,88,0.12);
  border-color: rgba(48,209,88,0.3);
  color: var(--green);
}

.f-agreement-dot.conflict {
  background: rgba(255,69,58,0.12);
  border-color: rgba(255,69,58,0.3);
  color: var(--red);
}

.f-agreement-dot.partial {
  background: rgba(100,210,255,0.10);
  border-color: rgba(100,210,255,0.25);
  color: #64d2ff;
}

.f-agreement-dot.single {
  background: rgba(255,159,10,0.12);
  border-color: rgba(255,159,10,0.25);
  color: var(--orange);
}

.f-agreement-dot.partial {
  background: rgba(48,209,88,0.08);
  border-color: rgba(48,209,88,0.2);
  color: var(--green);
}

/* ── Input slots (3 channels) ── */
.f-slots {
  padding: 10px 14px 8px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}

.f-slot {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 22px;
}

.f-slot-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
  min-width: 22px;
  text-align: center;
}

.f-slot--gesture .f-slot-label {
  background: rgba(0,200,255,0.12);
  color: var(--cyan);
  border: 1px solid rgba(0,200,255,0.2);
}
.f-slot--voice .f-slot-label {
  background: rgba(123,80,255,0.12);
  color: var(--purple);
  border: 1px solid rgba(123,80,255,0.2);
}
.f-slot--behavior .f-slot-label {
  background: rgba(100,210,255,0.10);
  color: #64d2ff;
  border: 1px solid rgba(100,210,255,0.2);
}
.f-slot--face .f-slot-label {
  background: rgba(255,159,10,0.12);
  color: var(--orange);
  border: 1px solid rgba(255,159,10,0.2);
}

.f-slot-value {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,0.2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.3s;
  font-family: var(--display);
}

/* ── Fusion signal visualization canvas ── */
.fusion-vis-wrap {
  padding: 10px 16px 0;
  flex-shrink: 0;
}

#fusion-canvas {
  width: 100%;
  height: 300px;
  display: block;
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
}

/* ── Fused output ── */
.fusion-output {
  padding: 20px 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}

.fusion-output-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray2);
  align-self: flex-start;
}

.fusion-intent {
  font-family: var(--display);
  font-size: 36px;
  font-weight: 800;
  color: rgba(255,255,255,0.15);
  letter-spacing: -0.01em;
  transition: color 0.35s var(--ease);
  line-height: 1;
  align-self: center;
}

.fusion-output .conf-row {
  width: 100%;
}

.fusion-output .conf-track {
  height: 4px;
}

/* ── Fusion badge (agreement label) ── */
.f-badge {
  font-size: 11px;
  color: var(--gray);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid transparent;
  background: transparent;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
  text-align: center;
}

.f-badge.visible.agree {
  background: rgba(48,209,88,0.08);
  border-color: rgba(48,209,88,0.2);
  color: var(--green);
}

.f-badge.visible.conflict {
  background: rgba(255,69,58,0.08);
  border-color: rgba(255,69,58,0.2);
  color: var(--red);
}

.f-badge.visible.partial {
  background: rgba(100,210,255,0.08);
  border-color: rgba(100,210,255,0.15);
  color: #64d2ff;
}

.f-badge.visible.single {
  background: rgba(255,159,10,0.08);
  border-color: rgba(255,159,10,0.15);
  color: var(--orange);
}

/* ── Signal history ── */
.fusion-log {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 10px 16px 12px;
  overflow: hidden;
}

.fusion-log-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray2);
  margin-bottom: 8px;
  flex-shrink: 0;
}

.f-log {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
  scrollbar-width: none;
}
.f-log::-webkit-scrollbar { display: none; }

.f-log li {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  background: var(--surface2);
  border-radius: 6px;
  font-size: 11px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.fl-icon {
  font-size: 12px;
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.fl-intent {
  flex: 1;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
}

.fl-src {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 1px 5px;
  border-radius: 3px;
  flex-shrink: 0;
}

.fl-src.src-agree    { background: rgba(48,209,88,0.15);  color: var(--green); }
.fl-src.src-conflict { background: rgba(255,69,58,0.15);  color: var(--red); }
.fl-src.src-single   { background: rgba(255,255,255,0.07); color: var(--gray); }

.fl-conf {
  font-size: 10px;
  color: var(--gray);
  min-width: 30px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.fl-time {
  font-size: 10px;
  color: var(--gray2);
  font-variant-numeric: tabular-nums;
  min-width: 50px;
  text-align: right;
}

/* ── ASL panel ── */
.asl-panel {
  padding: 10px 16px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: rgba(0,200,255,0.03);
}

.asl-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.asl-type-badge {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--gray2);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.08);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.asl-type-badge.letter   { color: var(--cyan);   border-color: rgba(0,200,255,0.30); background: rgba(0,200,255,0.08); }
.asl-type-badge.number   { color: #ffd60a;        border-color: rgba(255,214,10,0.30); background: rgba(255,214,10,0.08); }
.asl-type-badge.both     { color: #bf9fff;        border-color: rgba(123,80,255,0.30); background: rgba(123,80,255,0.08); }

.asl-main-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.asl-letter {
  font-family: var(--display);
  font-size: 46px;
  font-weight: 800;
  color: rgba(255,255,255,0.18);
  line-height: 1;
  letter-spacing: -0.02em;
  min-width: 52px;
  text-align: center;
  transition: color 0.15s, transform 0.12s;
  flex-shrink: 0;
}
.asl-letter.active { transform: scale(1.05); }

.asl-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.conf-fill--asl { background: var(--cyan); }

.asl-buffer-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.asl-buffer-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray2);
  flex-shrink: 0;
}

.asl-buffer-text {
  flex: 1;
  font-family: var(--display);
  font-size: 15px;
  font-weight: 700;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.12em;
  min-height: 20px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.asl-clear-btn {
  background: none;
  border: 1px solid rgba(255,255,255,0.10);
  color: var(--gray2);
  font-size: 9px;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: color 0.15s, border-color 0.15s;
  padding: 0;
}
.asl-clear-btn:hover { color: #fff; border-color: rgba(255,255,255,0.30); }

/* ═══════════════════════════════════════════════════════
   MODE SELECTOR
   ═══════════════════════════════════════════════════════ */
.mode-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 46px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 16px;
}

.mode-tabs {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
  flex-shrink: 0;
}

.mode-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 16px;
  border-radius: 7px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--gray);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  line-height: 1;
  white-space: nowrap;
}

.mode-tab:hover { color: rgba(255,255,255,0.8); }

.mode-tab.active {
  background: var(--surface3);
  color: #fff;
  border-color: var(--border2);
}

.mode-tab--center.active {
  background: rgba(123,80,255,0.18);
  border-color: rgba(123,80,255,0.35);
  color: #bf9fff;
}

/* Gesture active = cyan accent */
.mode-tab:first-child.active {
  background: rgba(0,200,255,0.1);
  border-color: rgba(0,200,255,0.3);
  color: var(--cyan);
}

/* Voice active = purple accent */
.mode-tab:last-child.active {
  background: rgba(191,90,242,0.1);
  border-color: rgba(191,90,242,0.3);
  color: #bf5af2;
}

.mode-hint {
  font-size: 11px;
  color: var(--gray2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  text-align: right;
}

/* ═══════════════════════════════════════════════════════
   MODE-SPECIFIC LAYOUTS
   ═══════════════════════════════════════════════════════ */

/* ── Gesture Only ── */
body.mode-gesture .channel--voice,
body.mode-gesture .fusion-center {
  display: none;
}

body.mode-gesture .main {
  justify-content: center;
}

body.mode-gesture .channel--gesture {
  width: 100%;
  max-width: 700px;
  border-right: none;
  overflow-y: auto;
}

body.mode-gesture .viewport-wrap {
  padding: 20px 24px 16px;
}

body.mode-gesture .viewport {
  aspect-ratio: 4 / 3;
  border-radius: 12px;
}

body.mode-gesture .ch-intent-row {
  padding: 8px 0 4px;
}

body.mode-gesture .ch-intent {
  font-size: 20px;
  font-weight: 800;
}

/* ── Voice Only ── */
body.mode-voice .channel--gesture,
body.mode-voice .fusion-center {
  display: none;
}

body.mode-voice .main {
  justify-content: center;
}

body.mode-voice .channel--voice {
  width: 100%;
  max-width: 600px;
  border-left: none;
  overflow-y: auto;
}

body.mode-voice .wave-wrap {
  padding: 16px 20px 8px;
}

body.mode-voice .wave-wrap canvas {
  height: 80px;
}

body.mode-voice .mic-wrap {
  padding: 12px 20px;
}

body.mode-voice .mic-btn {
  padding: 9px 22px 9px 16px;
  font-size: 13px;
  border-radius: 24px;
}

body.mode-voice .transcript-wrap {
  padding: 10px 20px 12px;
}

body.mode-voice .transcript {
  font-size: 15px;
  min-height: 44px;
}

body.mode-voice .ch-intent-row {
  padding: 8px 0 4px;
}

body.mode-voice .ch-intent {
  font-size: 20px;
  font-weight: 800;
}

body.mode-voice .hints-wrap {
  padding: 12px 20px 16px;
}

/* ══════════════════════════════════════════════════════════
   MOBILE  ≤ 768px
   Stack columns, let mode tabs control what's visible
   ══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  html, body {
    height: auto;
    overflow: auto;
  }

  /* ── Mode bar ── */
  .mode-bar {
    padding: 6px 12px;
    gap: 6px;
  }
  .mode-hint { display: none; }
  .mode-tab  { font-size: 11px; padding: 5px 10px; gap: 5px; }

  /* ── Main: stack vertically ── */
  .main {
    flex-direction: column;
    overflow: visible;
    height: auto;
  }

  .channel {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
    overflow: visible;
  }

  .channel--voice {
    border-left: none;
    border-bottom: none;
  }

  .fusion-center {
    width: 100%;
    min-width: unset;
    overflow: visible;
    border-bottom: 1px solid var(--border);
  }

  /* ── Viewport ── */
  .viewport {
    aspect-ratio: 4 / 3;
  }

  /* ── Fusion canvas shorter on mobile ── */
  .fusion-vis-wrap { height: 160px; }

  /* ── Slots: 2×2 grid instead of column list ── */
  .f-slots {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }
  .f-slot { flex-direction: column; align-items: flex-start; gap: 3px; }

  /* ── Fusion output ── */
  .fusion-intent { font-size: 22px; }

  /* ── Gesture mode: hide voice + fusion center ── */
  body.mode-gesture .channel--voice,
  body.mode-gesture .fusion-center {
    display: none;
  }

  /* ── Voice mode: hide gesture + fusion center ── */
  body.mode-voice .channel--gesture,
  body.mode-voice .fusion-center {
    display: none;
  }

  /* ── Voice mode: full width, no max-width cap ── */
  body.mode-voice .channel--voice {
    max-width: 100%;
  }

  /* ── Nav title shorter ── */
  .nav-title { font-size: 11px; }
  .nav-back  { font-size: 12px; min-width: 56px; }
}