:root {
  --bg: #0a0b10;
  --bg-elev: #13151c;
  --bg-elev-2: #1b1e29;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f5f6fa;
  --text-dim: rgba(245, 246, 250, 0.65);
  --text-faint: rgba(245, 246, 250, 0.42);

  --accent: #8b7dff;
  --accent-2: #22d3ee;
  --listening: #22d3ee;
  --speaking: #8b7dff;
  --processing: #f59e0b;
  --error: #ff6a75;
  --success: #34d399;

  /* Mono is the "machine voice": reserved for system text the app emits —
   * the orb's status caption, tool calls, the transport tag. Body/UI stays
   * Inter. */
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;

  /* Thesis: color belongs to the voice. The chrome is monochrome; saturated
   * hue appears only on the orb and on these tiny role echoes, which mirror
   * the orb's own state colors (you listening = cyan, assistant = violet,
   * tool = amber) so the transcript reads in the same color language. */
  --voice-user: var(--accent-2);
  --voice-assistant: var(--accent);
  --voice-tool: var(--processing);

  /* Smoothed mic RMS in [0..1], updated every frame from JS while a session
   * is active. Used by audio-reactive circle states. */
  --audio-level: 0;
  /* Five log-spaced frequency bands extracted from the mic analyser;
   * drive each bar's height independently for a real "spectrum" feel. */
  --bar0: 0;
  --bar1: 0;
  --bar2: 0;
  --bar3: 0;
  --bar4: 0;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.35);

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(ellipse at 50% 20%, #1a1c28 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

button {
  font-family: inherit;
}

a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border-strong);
}
a:hover {
  border-bottom-color: var(--text);
}

#app {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

/* ─── Topbar ──────────────────────────────────────────────────────────── */

/* Topbar is just a floating row of controls over the stage - no
 * separator line, no background. Same story for the footer. Keeps the
 * app feeling like one continuous canvas. */
.topbar {
  display: flex;
  /* Top-align so the right control cluster sits up with the title instead of
   * floating to the vertical middle of the tall identity block. */
  align-items: flex-start;
  justify-content: space-between;
  padding: 18px 28px;
  /* Default stacking (below the conversation panel, z 200) so the panel drawer
   * covers the controls when it's open. */
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  color: var(--text-dim);
}

/* Transport tag rides the wordmark as a system label, not prose — mono,
 * dimmed, the only mono in the topbar. */
.brand-tag {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.02em;
  opacity: 0.55;
}

.brand .brand-logo {
  width: 26px;
  height: 26px;
  object-fit: contain;
  flex: none;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.45));
  transition: transform 0.2s ease;
}
.brand .brand-logo:hover {
  transform: translateY(-1px) rotate(-2deg);
}

/* Narrow viewports (typically the mobile shell iframe and phone-sized
   browser windows): the full product name pushes the topbar's right
   cluster off-screen. Keep the logo as the brand cue and drop the
   wordmark - the orb already gives enough context. */
@media (max-width: 600px) {
  /* The full identity stack is too tall for a phone topbar. Show only the
   * title + (i); the popup carries the blurb, credits and pipeline.
   * `.brand` prefix raises specificity so this beats the later base
   * `.ident-meta { display: flex }` rule regardless of source order. */
  .brand .ident-blurb,
  .brand .ident-meta {
    display: none;
  }
  .ident-title {
    font-size: 18px;
  }
  /* (i) moves into the right-hand control cluster on phones, leaving the
   * title alone on the left. */
  .brand .about-btn {
    display: none;
  }
  .about-btn-mobile {
    display: inline-flex;
  }
  /* Keep phone icons at the current compact size — the desktop bump above
   * shouldn't leak into the mobile topbar. */
  .topbar-right .icon-btn {
    width: 36px;
    height: 36px;
  }
  .topbar-right .icon-btn svg {
    width: 18px;
    height: 18px;
  }
  /* Keep the account control compact on phones: avatar-only chip, shorter pill. */
  .account-chip {
    height: 36px;
    padding: 0 6px;
  }
  .account-handle {
    display: none;
  }
  .signin-pill {
    height: 36px;
    padding: 0 12px;
  }
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* The HF user pill: compact avatar + handle. Rendered as a flex row so
 * the avatar stays aligned with the text baseline even when the text
 * wraps on narrow viewports. */
.hf-user {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
  padding: 4px 10px 4px 4px;
  border-radius: 999px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  line-height: 1;
}

.hf-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  background: color-mix(in srgb, var(--accent) 25%, var(--bg-elev-2));
  /* Hidden until an actual URL loads (see `setHfAvatar` in main.ts).
   * Keeps the initial login flash from showing a broken image icon. */
  opacity: 0;
  transition: opacity 0.25s ease;
  flex: none;
}
.hf-avatar.loaded {
  opacity: 1;
}

.hf-user-name {
  white-space: nowrap;
}

/* ─── Transport pill ──────────────────────────────────────────────
 * Surface the actual network path WebRTC picked for the robot peer
 * connection (LAN, direct-through-NAT, or TURN-relayed). Lets the
 * user spot at a glance when audio is going through the internet
 * instead of staying on-prem.
 */
.transport-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text-dim);
  user-select: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.transport-pill .transport-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 25%, transparent);
  flex: none;
}

/* Bitrate readout sits after the kind label. Dimmer + monospace so the
 * kind (LAN / Direct / Relayed) stays the primary info and the numbers
 * don't wiggle the layout as digits change. */
.transport-pill .transport-bitrate {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: color-mix(in srgb, currentColor 75%, var(--text-dim));
  opacity: 0.85;
  padding-left: 6px;
  border-left: 1px solid color-mix(in srgb, currentColor 25%, transparent);
}
.transport-pill .transport-bitrate:empty {
  display: none;
}

.transport-pill.transport-checking {
  color: var(--text-dim);
}
.transport-pill.transport-checking .transport-dot {
  animation: transport-blink 1.2s ease-in-out infinite;
}

.transport-pill.transport-lan {
  color: #4ade80;
  border-color: color-mix(in srgb, #4ade80 35%, var(--border));
  background: color-mix(in srgb, #4ade80 10%, var(--bg-elev));
}

.transport-pill.transport-direct {
  color: #60a5fa;
  border-color: color-mix(in srgb, #60a5fa 35%, var(--border));
  background: color-mix(in srgb, #60a5fa 10%, var(--bg-elev));
}

.transport-pill.transport-relay {
  color: #fbbf24;
  border-color: color-mix(in srgb, #fbbf24 35%, var(--border));
  background: color-mix(in srgb, #fbbf24 10%, var(--bg-elev));
}

@keyframes transport-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.icon-btn {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  touch-action: manipulation;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.icon-btn:hover {
  background: var(--bg-elev-2);
  color: var(--text);
  border-color: var(--border-strong);
}
/* Topbar control cluster reads a touch bigger on desktop. Phones keep the
 * compact 36px (reset in the mobile media query). */
.topbar-right .icon-btn {
  width: 40px;
  height: 40px;
}
.topbar-right .icon-btn svg {
  width: 20px;
  height: 20px;
}

/* ─── Account (HF login chip + sign-in pill + popover) ─────────────────────── */
.account {
  position: relative;
  display: inline-flex;
  align-items: center;
}
/* Signed-out: a compact pill that reads as the primary affordance. */
.signin-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 40px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}
.signin-pill svg {
  width: 16px;
  height: 16px;
  flex: none;
}
.signin-pill:hover {
  background: var(--bg-elev-2);
  border-color: var(--text);
}
/* Narrow viewports: collapse the pill to an icon-only square. */
@media (max-width: 800px) {
  .signin-pill {
    gap: 0;
    width: 40px;
    padding: 0;
    justify-content: center;
  }
  .signin-pill span {
    display: none;
  }
}
/* Signed-in: avatar + handle chip. */
.account-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 10px 0 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text-dim);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.account-chip:hover {
  background: var(--bg-elev-2);
  color: var(--text);
  border-color: var(--border-strong);
}
.account-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  flex: none;
}
.account-avatar-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elev-2);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
}
.account-handle {
  font-size: 13px;
  font-weight: 600;
  max-width: 12ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.account-pro {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 5px;
  border-radius: 5px;
  background: var(--text);
  color: var(--bg);
}
/* Org "Team" badge: same pill as PRO, accent-coloured so it reads as
 * unlimited without claiming a paid PRO subscription. */
.account-team {
  background: var(--accent);
  color: var(--bg);
}
.account-pop {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  padding: 6px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  box-shadow: var(--shadow-soft);
  z-index: 50;
}
.account-pop[hidden] {
  display: none;
}
.account-pop-row {
  padding: 8px 10px;
}
.account-pop-name {
  font-weight: 600;
  font-size: 13px;
}
.account-pop-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 0;
  font-size: 12px;
  color: var(--text-dim);
}
.account-tier {
  font-weight: 600;
  color: var(--text);
}
.account-pop-link {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 13px;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.account-pop-link:hover {
  background: var(--bg-elev-2);
  color: var(--text);
}
.account-signout {
  border-top: 1px solid var(--border);
  margin-top: 4px;
  padding-top: 10px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

/* ─── Daily-limit modal ────────────────────────────────────────────────────── */
.limit-modal {
  width: min(400px, 92vw);
}
.limit-card {
  position: relative;
  align-items: center;
  text-align: center;
  gap: 14px;
  padding: 34px 28px 26px;
}
.limit-close {
  position: absolute;
  top: 12px;
  right: 12px;
}
/* HF smiling face (brand yellow) on a neutral badge — friendly, not a stop sign.
 * The logo is the single pop of colour, so the badge itself stays quiet. */
.limit-badge {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 2px auto 2px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  box-shadow: 0 0 0 6px rgba(255, 210, 30, 0.06);
}
.limit-badge .hf-logo {
  width: 46px;
  height: auto;
}
.limit-title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0;
}
.limit-msg {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.55;
  margin: 0;
  max-width: 30ch;
}
.limit-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
}
.limit-cta .hf-logo {
  width: 20px;
  height: auto;
  flex: none;
}
.limit-note {
  margin: 0;
  font-size: 12px;
  color: var(--text-faint);
}
#limit-cta[hidden] {
  display: none;
}

/* ─── Stage ───────────────────────────────────────────────────────────── */

.stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 24px 32px;
  gap: 20px;
}

/* ─── Central circle ──────────────────────────────────────────────────── */

/* Wraps the orb and its two side controls so they stay aligned on one row. */
.orb-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 3vw, 32px);
}

.circle {
  position: relative;
  width: clamp(220px, 38vw, 320px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: none;
  background: transparent;
  padding: 0;
  cursor: pointer;
  outline: none;
  display: grid;
  place-items: center;
  color: var(--glow, var(--accent));
  transition: transform 0.18s ease, filter 0.18s ease;
  -webkit-tap-highlight-color: transparent;
  /* Treat taps as immediate clicks (no 300ms delay / double-tap-zoom). */
  touch-action: manipulation;
}
.circle:hover {
  filter: brightness(1.08);
}
.circle:active {
  transform: scale(0.97);
  filter: brightness(0.92);
}
.circle:focus-visible .circle-core {
  outline: 2px solid var(--glow, var(--accent));
  outline-offset: 6px;
}
.circle[disabled] {
  cursor: default;
  opacity: 0.75;
}

.circle-glow {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at center, var(--glow, var(--accent)) 0%, transparent 65%);
  filter: blur(28px);
  opacity: 0.5;
  transform: scale(1);
  transition: opacity 0.25s, background 0.25s, transform 1.4s ease-in-out;
  pointer-events: none;
}

/* Two nested circular rings: the inner tracks the core edge, the outer
 * expands / fades to convey "audio radiating out" during speaking. */
.circle-ring,
.circle-ring-outer {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: opacity 0.4s ease, border-color 0.4s ease, transform 0.3s ease;
}
.circle-ring {
  width: 82%;
  height: 82%;
  border: 1.5px solid color-mix(in srgb, var(--glow, var(--accent)) 35%, transparent);
  opacity: 0.35;
}
.circle-ring-outer {
  width: 94%;
  height: 94%;
  border: 1px solid color-mix(in srgb, var(--glow, var(--accent)) 22%, transparent);
  opacity: 0;
}

.circle-core {
  position: relative;
  width: 72%;
  height: 72%;
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 28%,
    color-mix(in srgb, var(--glow, var(--accent)) 28%, transparent),
    color-mix(in srgb, var(--glow, var(--accent)) 10%, transparent) 55%,
    color-mix(in srgb, var(--glow, var(--accent)) 5%, transparent)
  );
  border: 2px solid color-mix(in srgb, var(--glow, var(--accent)) 40%, transparent);
  display: grid;
  place-items: center;
  box-shadow:
    0 0 32px color-mix(in srgb, var(--glow, var(--accent)) 22%, transparent),
    inset 0 0 28px color-mix(in srgb, var(--glow, var(--accent)) 18%, transparent);
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s ease;
}

/* Indicator slot: a single SVG / spinner / bar group is visible at a time,
 * driven by the state class on `.circle`. */
.circle-indicator {
  position: relative;
  width: 44%;
  height: 44%;
  display: grid;
  place-items: center;
  color: var(--glow, var(--accent));
}
.circle-indicator > .ind {
  grid-area: 1 / 1;
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}
.circle-indicator > svg.ind {
  width: 60%;
  height: 60%;
}

/* Spinner: a rotating ring gap, CSS-only.
 *
 * Note: the base `.circle-indicator > .ind` rule forces `transform:
 * scale(.85)` / `scale(1)` on every indicator to drive the show/hide
 * transition. If we only rotate here, the browser has to interpolate
 * between `scale(1)` and `rotate(360deg)` (two different transform
 * functions), which produces a broken, barely-moving animation. So we
 * include the scale explicitly in the keyframes and bump specificity
 * with `!important` so the spinner always wins over the state rule. */
.ind-spinner {
  width: 48%;
  height: 48%;
  border: 3px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  opacity: 0;
  animation: ind-spin 0.9s linear infinite;
}

/* Thinking dots: 3 soft pulsing dots while the model is composing a
 * response. Apple-style cadence: each dot scales up and brightens in
 * turn, staggered by ~160 ms. Per-dot animation is on the child, so
 * the parent's scale(.85 → 1) show/hide transform composes cleanly. */
.ind-thinking {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 60%;
  height: 60%;
}
.ind-thinking .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.3;
  animation: thinking-dot 1.25s ease-in-out infinite;
}
.ind-thinking .dot:nth-child(1) { animation-delay: 0s; }
.ind-thinking .dot:nth-child(2) { animation-delay: 0.16s; }
.ind-thinking .dot:nth-child(3) { animation-delay: 0.32s; }

/* Bars: 5 vertical pills driven by --bar0..--bar4 CSS vars. */
.ind-bars {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 42%;
}
.ind-bars .bar {
  width: 4px;
  min-height: 4px;
  border-radius: 3px;
  background: currentColor;
  opacity: 0.7;
  --h: var(--bar0, 0);
  height: calc(4px + var(--h) * 36px);
  transition: height 0.08s ease-out, opacity 0.08s ease-out;
}
.ind-bars .bar:nth-child(1) { --h: var(--bar0); }
.ind-bars .bar:nth-child(2) { --h: var(--bar1); }
.ind-bars .bar:nth-child(3) { --h: var(--bar2); }
.ind-bars .bar:nth-child(4) { --h: var(--bar3); }
.ind-bars .bar:nth-child(5) { --h: var(--bar4); }
.ind-bars .bar {
  opacity: calc(0.55 + 0.45 * var(--h));
}

/* Active indicator per state.
 *
 * Note: `ai-speaking` deliberately has NO indicator here. The orb
 * itself becomes the indicator by pulsing on Reachy's voice (see the
 * `--ai-audio-level` rules further down), which is a lot clearer and
 * less confusing than reusing the mic-bars (which viewers would read
 * as "you are speaking"). */
.state-signed-out .ind-connect,
.state-authenticated .ind-mic,
.state-ready .ind-mic,
.state-connecting .ind-spinner,
.state-connected .ind-spinner,
.state-auto-selecting .ind-spinner,
.state-starting .ind-spinner,
.state-queued .ind-spinner,
.state-processing .ind-thinking,
.state-listening .ind-bars,
.state-user-speaking .ind-bars,
.state-ai-speaking .ind-voice,
.state-error .ind-error {
  opacity: 1;
  transform: scale(1);
}

/* AI speaking indicator: speaker + two sound waves.
 *
 * Each wave pulses outward (opacity + stroke grow) with a quarter-
 * beat offset so it reads as sound radiating out. Kept as a pure
 * CSS animation so the icon is always visually alive even between
 * syllables when --ai-audio-level momentarily dips. */
.ind-voice .wave {
  transform-origin: 50% 50%;
  animation: voice-wave 1.35s ease-out infinite;
}
.ind-voice .wave-1 { animation-delay: 0s; }
.ind-voice .wave-2 { animation-delay: 0.35s; }

/* Idle indicators: a chain-link "connect" glyph for the signed-out
 * step (invites the user to authenticate with HF) and a microphone
 * once a session is ready. Both picked up by the generic
 * `.circle-indicator > svg.ind` sizing rule (60% × 60% of the slot)
 * and rely on per-state opacity transitions for show / hide. */
.ind-connect,
.ind-mic {
  color: color-mix(in srgb, var(--glow, var(--accent)) 85%, white);
}

/* ─── Caption below the circle ────────────────────────────────────────── */

/* The caption under the orb is meant to whisper, not shout: micro-label
 * vibe, uppercase, letter-spaced, muted. Only appears for actionable /
 * transitional states (see STATE_VIEWS). During a live conversation the
 * orb alone carries the state so we collapse this row entirely. */
.circle-caption {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  min-height: 1.2em;
  text-align: center;
  opacity: 0.75;
  transition: opacity 0.25s ease, color 0.25s ease, transform 0.25s ease,
    min-height 0.25s ease;
}
.circle-caption.empty {
  opacity: 0;
  min-height: 0;
  transform: translateY(-4px);
  pointer-events: none;
}
.circle-caption.muted {
  color: var(--text-faint);
  opacity: 0.65;
}
.circle-caption.error {
  color: var(--error);
  opacity: 1;
  letter-spacing: 0.08em;
}

/* Warm, human line under the mono caption — sentence case, only while queued.
 * The caption keeps the terse position; this reassures. */
.circle-subcaption {
  margin: 8px 0 0;
  max-width: 32ch;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text-dim);
  text-align: center;
  text-wrap: balance;
  transition: opacity 0.25s ease;
}
.circle-subcaption[hidden] { display: none; }

/* Queue actions sit under the caption: "Join now" (primary, only when it's your
 * turn) stacked above the quiet "Leave queue" escape hatch. */
.queue-actions {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.queue-actions[hidden] { display: none; }

/* "Join now": the one call to action in the queue flow, so it reads as inviting
 * (filled accent) while everything around it stays quiet. */
.join-queue-btn {
  padding: 10px 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #0b0b10;
  background: var(--accent);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  transition: transform 0.12s ease, filter 0.2s ease;
}
.join-queue-btn:hover { filter: brightness(1.08); }
.join-queue-btn:active { transform: scale(0.97); }
.join-queue-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.join-queue-btn[hidden] { display: none; }

/* "Leave queue": a quiet outlined pill, understated so it reads as an escape
 * hatch, not a CTA. */
.leave-queue-btn {
  padding: 7px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--text-faint) 35%, transparent);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.leave-queue-btn:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--text-faint) 60%, transparent);
  background: color-mix(in srgb, var(--text-faint) 8%, transparent);
}
.leave-queue-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.leave-queue-btn[hidden] { display: none; }

/* ─── Tool-call toaster ───────────────────────────────────────────────── */

/* A small, non-interactive pill that appears below the circle when the
 * model invokes a tool (move_head, play_move). Sits just under the
 * state caption, collapses to zero height when no toast is active. */
.tool-toast {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--bg-elev-2) 78%, transparent);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
  white-space: nowrap;
  max-width: 80vw;
  overflow: hidden;
  text-overflow: ellipsis;

  opacity: 0;
  transform: translateY(-4px) scale(0.96);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.tool-toast.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.tool-toast-icon {
  width: 14px;
  height: 14px;
  flex: none;
  color: color-mix(in srgb, var(--voice-tool) 80%, white);
  animation: tool-toast-spin 3.2s linear infinite;
  animation-play-state: paused;
}
.tool-toast.visible .tool-toast-icon {
  animation-play-state: running;
}
.tool-toast-text {
  display: inline-block;
  overflow: hidden;
  text-overflow: ellipsis;
}
@keyframes tool-toast-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ─── Side controls (mic / stop) ──────────────────────────────────────── */

/* Mic button + its radial noise-gate arc. The wrapper centres the button; the
   arc SVG is an absolute overlay larger than the button, revealed with the
   live session (it has no layout footprint, so the idle collapse is unaffected). */
.mic-gate {
  position: relative;
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.mic-gate-arc {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 80px;
  height: 80px;
  transform: translate(-50%, -50%);
  pointer-events: none; /* only the hit-path below catches drags */
  opacity: 0;
  transition: opacity 0.25s ease;
}
.orb-wrap.live .mic-gate-arc { opacity: 1; }
.mga-track {
  stroke: rgba(255, 255, 255, 0.1); /* hairline; recedes until needed */
  stroke-width: 1.5;
  stroke-linecap: round;
}
.mga-fill {
  stroke: var(--accent-2);
  stroke-width: 2;
  stroke-linecap: round;
  opacity: 0.85;
  transition: stroke-dashoffset 0.06s linear;
}
/* Threshold setpoint: a bead riding the ring. White with a thin dark outline so
   it stays legible over the moving fill; it recolors to cyan with a soft glow
   the moment the live level crosses it (the gate opening). */
.mga-handle {
  fill: var(--text);
  stroke: none;
  transition: fill 0.2s ease, filter 0.2s ease;
}
.mic-gate.gate-open .mga-handle {
  fill: var(--accent-2);
  filter: drop-shadow(0 0 3px var(--accent-2));
}
.mga-hit {
  stroke: transparent;
  stroke-width: 16;
  pointer-events: none; /* enabled only while live (below) */
  cursor: pointer;
  touch-action: none;
}
/* Only catch drags during a live call; when idle the arc is hidden and must
   not steal clicks near the collapsed mic button / orb. */
.orb-wrap.live .mga-hit { pointer-events: stroke; }

.side-btn {
  flex: none;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  /* Brighter background so the buttons actually stand out against the
   * deep-blue stage gradient; previous var(--bg-elev) was too close to
   * the page bg to be readable. */
  background: color-mix(in srgb, var(--bg-elev-2) 80%, #2a2e3c);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  touch-action: manipulation;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  /* Hidden by default: take up no space until the session is live. The
   * `width: 0` collapse keeps the orb centered on the idle screen. */
  opacity: 0;
  transform: scale(0.55);
  width: 0;
  padding: 0;
  pointer-events: none;
  overflow: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, width 0.25s ease,
    background 0.15s, color 0.15s, border-color 0.15s;
}
.side-btn:hover {
  background: color-mix(in srgb, var(--bg-elev-2) 60%, #323746);
  border-color: var(--text-dim);
}
.side-btn svg {
  width: 22px;
  height: 22px;
  flex: none;
}
.side-btn .mic-off { display: none; }
.side-btn.muted {
  color: #fff;
  border-color: var(--error);
  background: color-mix(in srgb, var(--error) 70%, #1a0e13);
}
.side-btn.muted .mic-on { display: none; }
.side-btn.muted .mic-off { display: block; }

/* Stop button: subtle warm tint so "end" reads as destructive. */
#stop-btn:hover {
  color: #fff;
  border-color: color-mix(in srgb, var(--error) 60%, var(--border-strong));
  background: color-mix(in srgb, var(--error) 25%, var(--bg-elev-2));
}

/* Reveal when the session is live: buttons flank the orb on a flex row. */
.orb-wrap.live .side-btn {
  opacity: 1;
  transform: scale(1);
  width: 52px;
  pointer-events: auto;
}

/* Disable every transition / animation during the first paint so the
 * orb doesn't fade-and-scale in when the page loads. `main.ts` removes
 * the class after one animation frame. */
body.booting,
body.booting *,
body.booting *::before,
body.booting *::after {
  transition: none !important;
  animation-duration: 0s !important;
  animation-delay: 0s !important;
}

/* ─── Circle animation keyframes ──────────────────────────────────────── */

/* Slow, subtle breathing for "warm idle" states. */
@keyframes breathe {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.4; }
  50%      { transform: translate(-50%, -50%) scale(1.06); opacity: 0.15; }
}

/* Outer ring expanding and fading - conveys "I am producing audio". */
@keyframes ring-out {
  0%   { transform: translate(-50%, -50%) scale(1); opacity: 0.35; }
  100% { transform: translate(-50%, -50%) scale(1.18); opacity: 0; }
}

/* Soft inner scale for the core while talking. */
@keyframes core-breathe {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.04); }
}

/* Subtle glow throb used for "thinking" — dimmer than speaking. */
@keyframes thinking {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50%      { transform: scale(0.96); opacity: 0.45; }
}

/* Individual dot pulse for the 3-dot processing indicator. */
@keyframes thinking-dot {
  0%, 60%, 100% { transform: scale(0.7); opacity: 0.3; }
  30%           { transform: scale(1.15); opacity: 1; }
}

/* Sound-wave pulse: arc fades in, scales up slightly, fades out.
 * The transform-origin is the speaker's center (roughly x=12), so
 * the waves feel like they're emanating from the cone. */
@keyframes voice-wave {
  0%   { opacity: 0; transform: scale(0.7); }
  30%  { opacity: 1; transform: scale(1); }
  70%  { opacity: 0.2; transform: scale(1.12); }
  100% { opacity: 0; transform: scale(0.7); }
}

@keyframes ind-spin {
  /* Scale kept at 1 so we don't fight with the indicator's base
   * show/hide transform (see `.ind-spinner` for the rationale). */
  from { transform: scale(1) rotate(0deg); }
  to   { transform: scale(1) rotate(360deg); }
}

/* ─── State-specific colors ──────────────────────────────────────────── */

.circle.state-signed-out   { --glow: #8b7dff; }
.circle.state-authenticated,
.circle.state-ready        { --glow: #34d399; }
.circle.state-connecting,
.circle.state-connected,
.circle.state-auto-selecting,
.circle.state-starting     { --glow: #facc15; }
/* Queued: a calm slate glow, distinct from connecting's active yellow — this is
 * waiting, not working. The spinner turns slowly and the ring breathes. */
.circle.state-queued       { --glow: #94a3b8; }
.circle.state-queued .ind-spinner { animation-duration: 2.4s; }
.circle.state-queued .circle-ring { animation: breathe 2.6s ease-in-out infinite; }
/* Your turn: a slot is held for you — the orb warms to the accent and breathes a
 * little quicker, an invitation to join. */
.circle.state-your-turn    { --glow: var(--accent); }
.circle.state-your-turn .circle-ring { animation: breathe 1.6s ease-in-out infinite; }
.circle.state-listening,
.circle.state-user-speaking { --glow: var(--listening); }
.circle.state-processing   { --glow: var(--processing); }
.circle.state-ai-speaking  { --glow: var(--speaking); }
.circle.state-error        { --glow: var(--error); }

/* Idle / ready: gentle breathing of the inner ring. Kept out of the
 * `signed-out` state so the very first paint on page load stays quiet
 * (the orb now shows the Reachy head silhouette, no need to also pulse). */
.circle.state-authenticated .circle-ring,
.circle.state-ready .circle-ring {
  animation: breathe 2.4s ease-in-out infinite;
}

/* Connecting flows: subtle glow throb so the orb feels thoughtful
 * while the session is being negotiated. Kept off `processing` on
 * purpose - the 3 thinking dots already pulse, and layering another
 * throb on top competes with them for attention. */
.circle.state-connecting .circle-core,
.circle.state-connected .circle-core,
.circle.state-auto-selecting .circle-core,
.circle.state-starting .circle-core {
  animation: thinking 1.4s ease-in-out infinite;
}

/* User is speaking: the mic RMS drives scale + opacity via --audio-level. */
.circle.state-user-speaking .circle-ring {
  animation: none;
  opacity: calc(0.25 + 0.55 * var(--audio-level));
  transform: translate(-50%, -50%) scale(calc(1 + 0.08 * var(--audio-level)));
  transition: transform 0.08s linear, opacity 0.08s linear;
}
.circle.state-user-speaking .circle-ring-outer {
  opacity: calc(0.1 + 0.35 * var(--audio-level));
  transform: translate(-50%, -50%) scale(calc(1 + 0.12 * var(--audio-level)));
  transition: transform 0.08s linear, opacity 0.08s linear;
}
.circle.state-listening .circle-ring {
  animation: breathe 2s ease-in-out infinite;
}

/* Assistant is speaking: the whole orb breathes in sync with Reachy's
 * voice instead of running a fixed timer. `--ai-audio-level` (0-1) is
 * updated at display rate by AiLevelMonitor from the OpenAI output
 * track, so every syllable visibly moves the core + outer ring. This
 * reads instantly as "the orb is the voice" and completely avoids the
 * ambiguity of bars-vs-mic the user flagged. */
.circle.state-ai-speaking .circle-core {
  animation: none;
  transform: scale(calc(1 + 0.09 * var(--ai-audio-level, 0)));
  transition: transform 0.08s linear;
}
.circle.state-ai-speaking .circle-ring {
  animation: none;
  opacity: calc(0.3 + 0.5 * var(--ai-audio-level, 0));
  transform: translate(-50%, -50%) scale(calc(1 + 0.05 * var(--ai-audio-level, 0)));
  transition: transform 0.08s linear, opacity 0.08s linear;
}
.circle.state-ai-speaking .circle-ring-outer {
  animation: none;
  opacity: calc(0.15 + 0.55 * var(--ai-audio-level, 0));
  transform: translate(-50%, -50%) scale(calc(1 + 0.18 * var(--ai-audio-level, 0)));
  transition: transform 0.08s linear, opacity 0.08s linear;
}
.circle.state-ai-speaking .circle-glow {
  opacity: calc(0.35 + 0.45 * var(--ai-audio-level, 0));
  transition: opacity 0.08s linear;
}

/* ─── Robot picker ────────────────────────────────────────────────────── */

.robot-picker {
  width: min(420px, 92vw);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  box-shadow: var(--shadow-soft);
}

.picker-title {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.robot-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.robot-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev-2);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.robot-card:hover {
  border-color: var(--border-strong);
}
.robot-card.selected {
  border-color: var(--border-strong);
  background: var(--bg-elev);
}

.robot-card .name {
  font-weight: 600;
  font-size: 14px;
}
.robot-card .id {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-faint);
}

.robot-empty {
  padding: 14px;
  text-align: center;
  color: var(--text-faint);
  font-size: 13px;
}

/* ─── Footer ──────────────────────────────────────────────────────────── */

.footer {
  padding: 12px 28px 18px;
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  display: flex;
  justify-content: center;
  opacity: 0.55;
  transition: opacity 0.25s ease;
}
.footer:hover {
  opacity: 0.9;
}
.footer a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted currentColor;
}
.footer a:hover {
  color: var(--text-dim);
}
/* While the webcam preview sits bottom-left, push the credit to the
 * bottom-right so the two don't collide. */
body.cam-on .footer {
  justify-content: flex-end;
}

/* ─── Modal ───────────────────────────────────────────────────────────── */

.modal {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0;
  background: var(--bg-elev);
  color: var(--text);
  width: min(440px, 92vw);
  box-shadow: var(--shadow-soft);
}
.modal::backdrop {
  background: rgba(8, 9, 13, 0.65);
  backdrop-filter: blur(4px);
}

.modal-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 22px 24px 20px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}
.modal-header h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.field[hidden] { display: none; }
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
}
.field > span {
  color: var(--text);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.field input,
.field select,
.field textarea {
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  outline: none;
  transition: border-color 0.15s;
  resize: vertical;
}
.field textarea {
  min-height: 84px;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--text-dim);
}
.field small {
  color: var(--text-faint);
  font-size: 12px;
  line-height: 1.4;
}
.field small.error { color: var(--error); }
.field small code {
  background: var(--bg);
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* Noise gate: a header with a live value, a level meter, and a range slider
   that shares the meter's horizontal (dB) axis. */
.field-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.field-value {
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text-dim);
}
/* The slider and the level meter are one widget: the range input is overlaid
   on the meter track (its native track is transparent), so the live-level fill
   shows through behind the thumb and the thumb itself is the threshold. */
.gate {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.gate-track {
  position: relative;
  height: 14px;
  display: flex;
  align-items: center;
}
.gate-track::before {
  /* the visible meter track */
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 8px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
}
.gate-meter-fill {
  position: absolute;
  left: 1px;
  top: 50%;
  transform: translateY(-50%);
  height: 6px;
  width: 0;
  border-radius: 999px;
  background: var(--accent-2);
  transition: width 0.06s linear;
  pointer-events: none;
}
.gate-ends {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0;
  text-transform: none;
}
/* The range input sits transparently on top of the meter track. */
.gate-track input[type="range"] {
  position: relative;
  z-index: 1;
  width: 100%;
  margin: 0;
  -webkit-appearance: none;
  appearance: none;
  padding: 0;
  border: none;
  background: transparent;
  height: 14px;
  cursor: pointer;
}
.gate-track input[type="range"]::-webkit-slider-runnable-track {
  height: 14px;
  background: transparent;
}
.gate-track input[type="range"]::-moz-range-track {
  height: 14px;
  background: transparent;
}
.gate-track input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 6px;
  height: 18px;
  border-radius: 3px;
  background: var(--text);
  border: 2px solid var(--bg-elev);
  box-shadow: 0 0 0 1px var(--border-strong);
}
.gate-track input[type="range"]::-moz-range-thumb {
  width: 6px;
  height: 18px;
  border-radius: 3px;
  background: var(--text);
  border: 2px solid var(--bg-elev);
  box-shadow: 0 0 0 1px var(--border-strong);
}
.gate-track input[type="range"]:focus { border: none; }

.modal-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-top: 6px;
}

.btn {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-elev-2);
  color: var(--text);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}
.btn:hover {
  border-color: var(--text);
}
.btn:active {
  transform: translateY(1px);
}
.btn.primary {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
}
.btn.primary:hover {
  background: #fff;
  border-color: #fff;
}
.btn.ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-dim);
}
.btn.wide {
  width: 100%;
  padding: 12px 16px;
}
.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn[disabled]:hover {
  border-color: var(--border-strong);
}

/* ─── Settings tabs ───────────────────────────────────────────────────── */

.tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.tab {
  flex: 1;
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: calc(var(--radius-sm) - 3px);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.tab:hover {
  color: var(--text);
}
.tab.active {
  background: var(--bg-elev-2);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.tab-panels {
  display: flex;
  flex-direction: column;
}
.tab-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tab-panel[hidden] {
  display: none;
}

/* Horizontal layout for Voice + Model. */
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ─── Chat button + badge ────────────────────────────────────────────── */

#chat-btn {
  position: relative;
}

.chat-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text);
  border: 1.5px solid var(--bg-elev);
  opacity: 0;
  transform: scale(0);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}
.chat-badge.visible {
  opacity: 1;
  transform: scale(1);
}

/* ─── Ephemeral bubble stack ─────────────────────────────────────────── */

.bubble-stack {
  position: fixed;
  /* Clear the topbar control row so the first bubble doesn't sit at the same
   * height as the buttons. */
  top: 96px;
  right: 28px;
  width: min(300px, calc(100vw - 56px));
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  z-index: 100;
}

.bubble {
  --bubble-dx: 10px;
  pointer-events: auto;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.5;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.32);
  max-width: 100%;
  word-break: break-word;
  opacity: 0;
  transform: translateX(var(--bubble-dx));
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.bubble.in {
  opacity: 1;
  transform: translateX(0);
}
.bubble.out {
  opacity: 0;
  transform: translateX(var(--bubble-dx));
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Surfaces stay neutral; the side they sit on plus the mono role label
 * carry the distinction. No tinted fills — color is the orb's job. */
.bubble.user {
  --bubble-dx: -10px;
  align-self: flex-start;
}
.bubble.assistant {
  --bubble-dx: 10px;
  align-self: flex-end;
}
.bubble.tool {
  --bubble-dx: -10px;
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
}
.bubble.tool .bubble-tool-icon {
  width: 13px;
  height: 13px;
  flex: none;
  color: var(--voice-tool);
}

.bubble-role {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
  opacity: 0.7;
}
.bubble.user .bubble-role { color: var(--voice-user); }
.bubble.assistant .bubble-role { color: var(--voice-assistant); }

/* ─── Conversation history panel ─────────────────────────────────────── */

.chat-panel {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
}
.chat-panel-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 9, 13, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.chat-panel.open .chat-panel-backdrop {
  opacity: 1;
  pointer-events: auto;
}
.chat-panel-inner {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 90vw);
  background: var(--bg-elev);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.32, 0.72, 0, 1);
  pointer-events: auto;
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.35);
}
.chat-panel.open .chat-panel-inner {
  transform: translateX(0);
}
.chat-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  flex: none;
}
.chat-panel-header h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.chat-history {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}
.chat-history::-webkit-scrollbar { width: 3px; }
.chat-history::-webkit-scrollbar-track { background: transparent; }
.chat-history::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

.chat-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--text-faint);
  padding: 48px 0;
  opacity: 0.65;
}
.chat-empty svg {
  margin-bottom: 6px;
  opacity: 0.8;
}
.chat-empty-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.chat-empty-hint {
  font-size: 12px;
  color: var(--text-faint);
  opacity: 0.7;
}

/* ─── History messages ───────────────────────────────────────────────── */

.hist-msg {
  display: flex;
  flex-direction: column;
  gap: 3px;
  max-width: 88%;
}
.hist-msg.user { align-self: flex-start; }
.hist-msg.assistant { align-self: flex-end; }
.hist-msg.tool { align-self: flex-start; max-width: 100%; }

.hist-role {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 0 2px;
}
.hist-msg.user .hist-role { color: color-mix(in srgb, var(--voice-user) 75%, var(--text-faint)); }
.hist-msg.assistant .hist-role { color: color-mix(in srgb, var(--voice-assistant) 75%, var(--text-faint)); }
.hist-msg.tool .hist-role { color: color-mix(in srgb, var(--voice-tool) 75%, var(--text-faint)); }

.hist-body {
  padding: 9px 12px;
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.5;
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  word-break: break-word;
}
/* Bodies share one neutral surface; alignment + the mono role label do the
 * distinguishing, so the panel reads as one quiet column. */
.hist-msg.user .hist-body.partial { opacity: 0.65; }

/* ─── Tool call history item ─────────────────────────────────────────── */

.hist-tool-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: color-mix(in srgb, var(--processing) 10%, var(--bg-elev-2));
  border: 1px solid color-mix(in srgb, var(--processing) 22%, var(--border));
  border-bottom: 1px solid color-mix(in srgb, var(--processing) 15%, var(--border));
  cursor: pointer;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  width: 100%;
  text-align: left;
  transition: background 0.15s;
}
.hist-tool-header:only-child {
  border-radius: var(--radius-md);
  border-bottom: 1px solid color-mix(in srgb, var(--processing) 22%, var(--border));
}
.hist-tool-header:hover {
  background: color-mix(in srgb, var(--processing) 16%, var(--bg-elev-2));
}
.hist-tool-icon {
  width: 13px;
  height: 13px;
  flex: none;
  color: var(--processing);
}
.hist-tool-name {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--voice-tool);
  font-weight: 600;
}
.hist-tool-chevron {
  margin-left: auto;
  width: 13px;
  height: 13px;
  color: var(--text-faint);
  transition: transform 0.2s ease;
  flex: none;
}
.hist-tool-header[aria-expanded="true"] .hist-tool-chevron {
  transform: rotate(180deg);
}
.hist-tool-body {
  padding: 10px 12px 12px;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: var(--bg);
  border: 1px solid color-mix(in srgb, var(--processing) 22%, var(--border));
  border-top: none;
  display: none;
}
.hist-tool-body.open { display: block; }
.hist-tool-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 8px 0 4px;
}
.hist-tool-label:first-child { margin-top: 0; }
.hist-tool-block {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.65;
  color: var(--text-dim);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}
.hist-tool-output { color: var(--text); }

/* ─── Phone layout ────────────────────────────────────────────────────────
 * On phones the floating bubble stream overlaps the orb and there isn't room
 * for it, so we drop it entirely and rely on the conversation panel (opened
 * from the top-right chat button) as the single place to read the transcript.
 * The badge still pulses there when new messages arrive while it's closed.
 * We also stack the mic / stop controls above and below the orb (instead of
 * left/right) so the wide live row never overflows, and let the panel take
 * the full width. */
@media (max-width: 600px) {
  .bubble-stack {
    display: none;
  }

  .topbar {
    padding: 14px 16px;
  }

  .stage {
    padding: 16px 12px 24px;
  }

  /* Stack vertically: mic above the orb, stop below it (DOM order is
   * mic → circle → stop). */
  .orb-wrap {
    flex-direction: column;
    gap: 14px;
  }

  .circle {
    width: clamp(170px, 56vw, 240px);
  }

  /* In the column layout the side controls must collapse by HEIGHT, not
   * width, so they take no vertical space until the session is live. */
  .side-btn {
    width: 44px;
    height: 0;
    transition: opacity 0.25s ease, transform 0.25s ease, height 0.25s ease,
      background 0.15s, color 0.15s, border-color 0.15s;
  }
  .side-btn svg {
    width: 19px;
    height: 19px;
  }
  .orb-wrap.live .side-btn {
    width: 44px;
    height: 44px;
  }
  .mic-gate-arc { width: 70px; height: 70px; }

  /* Full-screen conversation on phones — feels more deliberate than a
   * narrow slide-over. It already spans top-to-bottom (inset 0); make it
   * span edge-to-edge too and drop the now-pointless border/shadow. */
  .chat-panel-inner {
    width: 100vw;
    border-left: none;
    box-shadow: none;
  }
}

/* ─── About panel ─────────────────────────────────────────────────────────
 * Opened from the (i) by the wordmark. Reuses the <dialog> .modal shell.
 * Strictly monochrome per DESIGN.md — the only "color" is the orb, never
 * here. Machine identifiers (model IDs, role tags, usernames) ride Geist
 * Mono; everything human stays Inter. */
.about-modal {
  /* Roomier on tablet/desktop; the 92vw cap keeps phones full-width. */
  width: min(680px, 92vw);
  max-height: 88vh;
}
.about-modal .modal-content {
  max-height: 88vh;
  overflow-y: auto;
  gap: 20px;
  padding: 26px 30px 24px;
}
.about-modal .modal-content::-webkit-scrollbar { width: 3px; }
.about-modal .modal-content::-webkit-scrollbar-track { background: transparent; }
.about-modal .modal-content::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

/* Links here are quiet: no permanent underline (the global dotted rule is
 * too loud for a dense credit block), brighten + underline on hover only. */
.about-modal a {
  color: var(--text);
  border-bottom: none;
  text-decoration: none;
  transition: color 0.15s ease;
}
.about-modal a:hover {
  color: #fff;
}
.about-intro a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}
.about-modal .ext {
  width: 12px;
  height: 12px;
  flex: none;
  opacity: 0.5;
}

/* Title row: the demo name and the (i) read as one unit. */
.ident-head {
  display: flex;
  align-items: center;
  gap: 9px;
}
/* (i) trigger sits right after the title. A faint outline keeps it
 * catchable without turning into a card; it fills in on hover. */
.about-btn {
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  touch-action: manipulation;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.about-btn:hover {
  background: var(--bg-elev);
  border-color: var(--text-dim);
  color: var(--text);
}
.about-btn svg {
  width: 20px;
  height: 20px;
}

/* The mobile twin of (i) lives in the right-hand control cluster and is
 * hidden on desktop (the in-title one shows there instead). */
.about-btn-mobile {
  display: none;
}

/* ── Popup intro: a plain paragraph on the project + a repo link ── */
.about-intro p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-dim);
}
.about-repo {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 500;
}

/* ── Corner identity (replaces the wordmark) ──
 * A compact stack in the topbar: title, one-line blurb, two meta rows.
 * Monochrome; only the role/name identifiers ride the machine typeface. */
.ident {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}
/* Reset the global underlined-anchor styling inside the identity block. */
.ident a {
  border-bottom: none;
  color: inherit;
  transition: color 0.15s ease;
}
.ident a:hover {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.ident-title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.005em;
  line-height: 1.1;
  color: var(--text);
}
.ident-blurb {
  margin: 0;
  max-width: 48ch;
  font-size: 14.5px;
  line-height: 1.5;
  font-weight: 400;
  color: var(--text-dim);
}
.ident-meta {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 14px;
  font-weight: 400;
  color: var(--text-dim);
}
.ident-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 8px;
}
.ident-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* Shared credit bits — now used in the corner identity block. */
.sep {
  color: var(--text-faint);
  opacity: 0.6;
}
.hf-credit {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
/* Brand marks keep their own color — a deliberate exception to the
 * monochrome rule, for the HF and Cerebras logos only. */
.hf-mark {
  width: 14px;
  height: 14px;
  flex: none;
  color: #ffd21e;
}
.cerebras-credit {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.cerebras-mark {
  width: 14px;
  height: 14px;
  flex: none;
}
/* Usernames are identifiers, so they ride the machine typeface. */
.handle {
  font-family: var(--font-mono);
  font-size: 13.5px;
}

/* ── Pipeline (the signal flow) ── */
.about-pipeline {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.pipeline-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.pipeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
/* One continuous rail threading every node, dot centers at x=8.5px. */
.pipeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 7px;
  bottom: 7px;
  width: 1px;
  background: var(--border-strong);
}
.pipeline > li {
  position: relative;
  padding-left: 30px;
}
/* Stages: solid node. Endpoints (you / orb): hollow node. */
.pipe-stage::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-dim);
}
.pipe-endpoint::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid var(--text-faint);
  background: var(--bg-elev);
}
.pipe-endpoint {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding-bottom: 12px;
}
.pipeline > li.pipe-endpoint:last-child {
  padding-bottom: 0;
}
.pipe-stage {
  padding-bottom: 16px;
}
.pipe-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text);
  margin-right: 9px;
}
.pipe-job {
  font-size: 14px;
  color: var(--text-dim);
}
/* Middot between the job and its model link, matching the separators
 * used elsewhere. */
.pipe-job::after {
  content: "·";
  margin: 0 7px;
  color: var(--text-faint);
}
.pipe-note {
  color: var(--text-faint);
}
/* The Cerebras link stays as quiet as the note; brightens + underlines on hover. */
.pipe-note a {
  color: inherit;
}
.pipe-note a:hover {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.pipe-model {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  word-break: break-all;
}
.pipe-model:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.pipe-model .ext {
  width: 11px;
  height: 11px;
}

/* "Interrupted" tag on an assistant reply the user barged in on. */
.hist-note {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 0 2px;
}
.hist-msg.assistant .hist-note {
  align-self: flex-end;
}
.hist-msg.interrupted .hist-body {
  opacity: 0.7;
}

/* Captured webcam frame shown in the transcript (camera tool result). */
.hist-image {
  display: block;
  width: 100%;
  max-width: 240px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin-top: 2px;
}

/* ─── Tools panel ──────────────────────────────────────────────────────────
 * Reuses the modal/field shell. Switches are monochrome (checked = near-white,
 * the same high-contrast treatment as the primary button): color belongs to
 * the voice, not the chrome. */
.tools-intro {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-dim);
}
.tool-list {
  display: flex;
  flex-direction: column;
}
.tool-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
}
.tool-row-sep {
  border-top: 1px solid var(--border);
  margin-top: 4px;
}
.tool-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.tool-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.tool-desc {
  font-size: 12.5px;
  color: var(--text-dim);
}
.tool-row.disabled .tool-name,
.tool-row.disabled .tool-desc {
  opacity: 0.5;
}
.tool-hint {
  display: block;
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-faint);
}
.tools-key {
  margin: 0 0 4px;
}

/* Toggle switch */
.switch {
  position: relative;
  display: inline-flex;
  flex: none;
  width: 40px;
  height: 24px;
  cursor: pointer;
}
.switch input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}
.switch-track {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  transition: background 0.15s, border-color 0.15s;
}
.switch-track::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 3px;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: transform 0.18s ease, background 0.15s;
}
.switch input:checked + .switch-track {
  background: var(--text);
  border-color: var(--text);
}
.switch input:checked + .switch-track::after {
  transform: translate(16px, -50%);
  background: var(--bg);
}
.switch input:focus-visible + .switch-track {
  outline: 2px solid var(--text-dim);
  outline-offset: 2px;
}
.switch input:disabled {
  cursor: not-allowed;
}
.switch input:disabled + .switch-track {
  opacity: 0.5;
}

/* ─── Webcam preview (camera tool) ──────────────────────────────────────────
 * Floating self-view, bottom-left. Mirrored for the user; the frame sent to
 * the model is drawn un-mirrored (see captureSnapshot). */
.cam-pip {
  position: fixed;
  left: 20px;
  bottom: 20px;
  width: 280px;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  box-shadow: var(--shadow-soft);
  z-index: 90;
  opacity: 0;
  transform: translateY(8px) scale(0.96);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.cam-pip.visible {
  opacity: 1;
  transform: none;
}
.cam-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1); /* mirror the self-view only */
  background: var(--bg);
}
.cam-label {
  position: absolute;
  left: 8px;
  bottom: 6px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  opacity: 0.8;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
}
.cam-flash {
  position: absolute;
  inset: 0;
  background: #fff;
  opacity: 0;
  pointer-events: none;
}
.cam-pip.flash .cam-flash {
  animation: cam-flash 0.4s ease;
}
@keyframes cam-flash {
  0% { opacity: 0; }
  12% { opacity: 0.85; }
  100% { opacity: 0; }
}
@media (max-width: 600px) {
  /* Bottom-centred on phones. Auto margins centre it without touching the
   * transform, so the slide/scale-in animation still works. */
  .cam-pip {
    left: 0;
    right: 0;
    margin-inline: auto;
    bottom: 16px;
    width: min(188px, 52vw);
  }
  /* The credit would sit under the centred preview, so drop it while the
   * camera is on. */
  body.cam-on .footer {
    display: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  .cam-pip {
    transition: opacity 0.22s ease;
    transform: none;
  }
  .cam-pip.flash .cam-flash {
    animation: none;
  }
}

/* ─── Desktop type scale ────────────────────────────────────────────────────
 * A uniform step up (~+1px, title +2) for all UI text on larger screens.
 * Scoped to min-width: 601px so it can't reach phones — the ≤600px layout
 * keeps every size exactly as it was. */
@media (min-width: 601px) {
  .cam-label { font-size: 10.5px; }

  .bubble-role,
  .hist-role { font-size: 11px; }

  .circle-caption,
  .footer,
  .chat-empty-title,
  .hist-tool-block,
  .ident-label,
  .pipeline-title,
  .pipe-endpoint { font-size: 12px; }

  .field > span,
  .field small,
  .bubble.tool,
  .chat-empty-hint,
  .hist-tool-name,
  .pipe-tag,
  .pipe-model,
  .tool-hint { font-size: 13px; }

  .tool-desc { font-size: 13.5px; }

  .btn,
  .bubble,
  .field,
  .hist-body,
  .hist-tool-header,
  .tools-intro { font-size: 14px; }

  .handle { font-size: 14.5px; }

  .about-intro p,
  .about-repo,
  .brand,
  .chat-panel-header h3,
  .field textarea,
  .ident-meta,
  .pipe-job,
  .tool-name { font-size: 15px; }

  .ident-blurb { font-size: 15.5px; }

  .modal-header h2 { font-size: 17px; }

  .ident-title { font-size: 24px; }
}