/* Talkback conversation and session illustration. */
.hc-talkback {
  --talkback-rule: rgba(194, 205, 214, 0.2);
  --talkback-label-width: 8.5rem;
  overflow: hidden;
  border: 1px solid var(--hc-border);
  border-radius: 1.1rem;
  background: var(--hc-well-deep);
  box-shadow: 0 18px 48px rgba(15, 23, 29, 0.15);
  color: var(--hc-text);
}
.hc-talkback *,
.hc-talkback *::before,
.hc-talkback *::after {
  box-sizing: border-box;
}
.hc-talkback button {
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--talkback-rule);
  border-radius: 0.55rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.35;
  cursor: pointer;
  touch-action: manipulation;
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}
.hc-talkback button:focus-visible {
  outline: 3px solid var(--hc-cyan);
  outline-offset: 4px;
}
.hc-talkback button:disabled {
  cursor: default;
  opacity: 0.55;
}
.hc-talkback-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  flex-wrap: wrap;
  padding: 0.9rem 1.4rem;
  border-bottom: 1px solid var(--talkback-rule);
  background: rgba(255, 255, 255, 0.025);
}
.hc-talkback-toolbar > :first-child {
  margin: 0;
  color: var(--hc-muted);
  font-size: 0.875rem;
}
.hc-talkback-examples {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.hc-talkback .hc-talkback-example {
  padding: 0.55rem 0.85rem;
  background: transparent;
  color: var(--hc-muted);
}
.hc-talkback .hc-talkback-example:hover {
  border-color: var(--hc-muted);
  color: var(--hc-cream);
}
.hc-talkback .hc-talkback-example.is-active,
.hc-talkback .hc-talkback-example[aria-pressed="true"] {
  border-color: var(--hc-cyan);
  background: var(--hc-cyan);
  color: #172b32;
}
.hc-talkback-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.25fr);
  min-height: 24rem;
}
.hc-talkback-conversation,
.hc-talkback-workspace {
  min-width: 0;
  padding: 1.4rem;
}
.hc-talkback-conversation {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--talkback-rule);
  background: rgba(255, 255, 255, 0.025);
}
.hc-talkback .hc-talkback-kicker {
  margin: 0 0 0.4rem;
  color: var(--hc-cyan);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hc-talkback .hc-talkback-title {
  margin: 0;
  color: var(--hc-cream);
  font-size: clamp(1.35rem, 2.2vw, 1.65rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
}
.hc-talkback .hc-talkback-subtitle {
  margin: 0.6rem 0 0;
  color: var(--hc-muted);
  font-size: 1rem;
  line-height: 1.5;
}
.hc-talkback-thread {
  flex: 1 1 5rem;
  min-height: 5rem;
  max-height: 12rem;
  margin: 1.2rem -0.35rem 1rem 0;
  padding: 0.15rem 0.5rem 0.2rem 0;
  overflow-y: auto;
  overflow-wrap: anywhere;
  overscroll-behavior: contain;
  scrollbar-color: var(--hc-border) transparent;
  scrollbar-width: thin;
  list-style: none;
}
.hc-talkback-thread:not(:empty) { flex-basis: auto; }
.hc-talkback-turn + .hc-talkback-turn {
  margin-top: 1rem;
}
.hc-talkback .hc-talkback-utterance {
  margin: 0;
  padding: 0.7rem 0.85rem;
  border: 1px solid rgba(243, 235, 216, 0.17);
  border-radius: 0.75rem 0.75rem 0.75rem 0.15rem;
  background: rgba(243, 235, 216, 0.065);
  color: var(--hc-cream);
  font-size: 1rem;
  line-height: 1.45;
}
.hc-talkback .hc-talkback-receipt {
  margin: 0.45rem 0 0;
  padding-left: 0.85rem;
  color: var(--hc-muted);
  font-size: 0.875rem;
  line-height: 1.5;
}
.hc-talkback-compose {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.7rem;
  min-height: 4.4rem;
  padding: 0.65rem;
  border: 1px solid #fff9e9;
  border-radius: 0.9rem;
  background: var(--hc-cream);
  color: #263640;
}
.hc-talkback-wave {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 1.8rem;
  height: 1.8rem;
  padding-inline: 2px;
  color: #64716f;
}
.hc-talkback-wave span {
  width: 2px;
  height: 0.45rem;
  border-radius: 2px;
  background: currentColor;
  transform-origin: center;
}
.hc-talkback-wave span:nth-child(2n) { height: 0.9rem; }
.hc-talkback-wave span:nth-child(3n) { height: 1.3rem; }
.hc-talkback .hc-talkback-dictation {
  min-width: 0;
  margin: 0;
  color: #263640;
  font-size: 0.875rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}
.hc-talkback .hc-talkback-mic {
  display: grid;
  place-items: center;
  flex: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid #182830;
  border-radius: 50%;
  background: #182830;
  color: var(--hc-cream);
}
.hc-talkback .hc-talkback-mic:hover { background: #334954; }
.hc-talkback .hc-talkback-mic:focus-visible { outline-color: #166e78; }
.hc-talkback-mic svg { display: block; width: 24px; height: 24px; }
.hc-talkback-mic-label {
  margin-top: 0.45rem;
  color: var(--hc-muted);
  font-size: 0.75rem;
  line-height: 1.4;
}
.hc-talkback[data-state="dictating"] .hc-talkback-mic {
  border-color: #1b737c;
  background: var(--hc-cyan);
  color: #18343d;
  animation: hc-talkback-listening 1.8s ease-in-out infinite;
}
.hc-talkback[data-state="dictating"] .hc-talkback-wave { color: #166e78; }
.hc-talkback[data-state="dictating"] .hc-talkback-wave span {
  animation: hc-talkback-voice 720ms ease-in-out infinite alternate;
  animation-delay: var(--voice-delay, 0ms);
}
.hc-talkback-wave span:nth-child(2n) { --voice-delay: -380ms; }
.hc-talkback-wave span:nth-child(3n) { --voice-delay: -180ms; }
.hc-talkback-wave span:nth-child(4n) { --voice-delay: -540ms; }
.hc-talkback-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.65rem;
}
.hc-talkback-controls button {
  padding: 0.45rem 0.75rem;
  background: transparent;
  color: var(--hc-muted);
}
.hc-talkback-controls button:hover {
  border-color: var(--hc-muted);
  background: rgba(255, 255, 255, 0.06);
  color: var(--hc-cream);
}
.hc-talkback-progress {
  margin-left: auto;
  color: var(--hc-muted);
  font-size: 0.75rem;
  line-height: 1.4;
  text-align: right;
}
.hc-talkback .hc-talkback-status {
  min-height: 1.4em;
  margin: 0.5rem 0 0;
  color: var(--hc-muted);
  font-size: 0.75rem;
  line-height: 1.4;
}
.hc-talkback[data-state="complete"] .hc-talkback-status { color: var(--hc-green); }
.hc-talkback[data-state="paused"] .hc-talkback-status { color: var(--hc-cream); }
.hc-talkback[data-state="applying"] .hc-talkback-workspace-header strong { color: var(--hc-cyan); }
.hc-talkback-workspace {
  display: flex;
  flex-direction: column;
  background: #29353e;
}
.hc-talkback-workspace-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.15rem;
}
.hc-talkback-workspace-header small,
.hc-talkback-workspace-header > span { color: var(--hc-muted); font-size: 0.75rem; }
.hc-talkback-workspace-header strong { color: var(--hc-cream); font-size: 0.875rem; }
.hc-talkback-timeline,
.hc-talkback-track {
  display: grid;
  grid-template-columns: var(--talkback-label-width) minmax(0, 1fr);
  gap: 0.65rem;
}
.hc-talkback-timeline { margin-bottom: 0.45rem; }
.hc-talkback-timeline > span {
  align-self: center;
  padding-left: 0.35rem;
  color: var(--hc-muted);
  font-size: 0.75rem;
}
.hc-talkback-sections,
.hc-talkback-regions { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); }
.hc-talkback-sections span {
  min-width: 0;
  padding: 0.35rem 0.2rem;
  border-left: 1px solid var(--talkback-rule);
  color: var(--hc-muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
}
.hc-talkback-sections span:nth-child(1),
.hc-talkback-region.is-verse { grid-column: 1 / span 4; }
.hc-talkback-sections span:nth-child(2),
.hc-talkback-region.is-chorus { grid-column: 5 / span 4; }
.hc-talkback-sections span:nth-child(3),
.hc-talkback-region.is-bridge { grid-column: 9 / span 4; }
.hc-talkback-region.is-full { grid-column: 1 / span 12; }
.hc-talkback-session {
  display: grid;
  gap: 0.4rem;
  min-height: 10rem;
  align-content: start;
}
.hc-talkback .hc-talkback-session .hc-talkback-stage-caption {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  margin: 0.4rem 0 0;
  color: var(--hc-muted);
  font-size: 0.875rem;
  line-height: 1.5;
}
.hc-talkback-track {
  min-width: 0;
  min-height: 2.7rem;
  border-radius: 0.35rem;
  transition: background 180ms ease;
}
.hc-talkback-track.is-new,
.hc-talkback-track.is-changed {
  background: rgba(65, 216, 224, 0.08);
  box-shadow: -3px 0 var(--hc-cyan);
}
.hc-talkback-track-label {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  gap: 0.1rem;
  padding: 0.2rem 0 0.2rem 0.35rem;
}
.hc-talkback-track-label strong,
.hc-talkback-track-label small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.hc-talkback-track-label strong { color: var(--hc-cream); font-size: 0.875rem; }
.hc-talkback-track-label small { color: var(--hc-muted); font-size: 0.75rem; }
.hc-talkback-regions {
  min-width: 0;
  align-items: center;
  padding-block: 0.3rem;
  background: repeating-linear-gradient(90deg, var(--talkback-rule) 0 1px, transparent 1px calc(100% / 12));
}

.hc-talkback-region {
  --region-colour: #8cc7e1;
  position: relative;
  display: block;
  min-width: 0;
  min-height: 1.9rem;
  margin-inline: 2px;
  padding: 0.25rem 0.4rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.25rem;
  background: var(--region-colour);
  color: #172b32;
  font-size: 0.75rem;
  font-weight: 650;
  line-height: 1.3;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.hc-talkback-region::after {
  position: absolute;
  inset: auto 0 3px;
  height: 3px;
  background: repeating-linear-gradient(90deg, rgba(23, 43, 50, 0.2) 0 12px, transparent 12px 18px);
  content: "";
  pointer-events: none;
}
.hc-talkback-region.is-downbeats::after {
  background: repeating-linear-gradient(90deg, rgba(23, 43, 50, 0.35) 0 3px, transparent 3px 25%);
}

.hc-talkback-tone-blue,
.hc-talkback-region.is-cyan { --region-colour: #82dce2; }
.hc-talkback-tone-amber,
.hc-talkback-region.is-amber { --region-colour: #ebc778; }
.hc-talkback-tone-green { --region-colour: #9ecfb3; }
.hc-talkback-tone-rose,
.hc-talkback-region.is-coral { --region-colour: #eca593; }
.hc-talkback-tone-purple,
.hc-talkback-region.is-purple { --region-colour: #c1afe1; }

.hc-talkback .hc-talkback-context-label {
  margin: auto 0 0.6rem;
  padding-top: 1.15rem;
  color: var(--hc-muted);
  font-size: 0.75rem;
  font-weight: 600;
}

.hc-talkback-context {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hc-talkback-context-item {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  max-width: 100%;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--talkback-rule);
  border-radius: 0.4rem;
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.75rem;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.hc-talkback-context-item strong { min-width: 0; color: var(--hc-cream); font-weight: 600; }
.hc-talkback-context-item span { color: var(--hc-muted); }

.hc-talkback-demo-note {
  margin: 1rem 0;
  color: var(--hc-muted);
  font-size: 0.875rem;
  line-height: 1.5;
}
.hc-talkback-demo-note summary {
  width: fit-content;
  min-height: 44px;
  padding-block: 0.65rem;
  color: var(--hc-cream);
  cursor: pointer;
}
.hc-talkback-demo-note summary:focus-visible { outline: 3px solid var(--hc-cyan); outline-offset: 3px; }
.hc-talkback-demo-note p { max-width: 80ch; margin: 0.4rem 0 0.75rem; font-size: 0.875rem; }

.hc-talkback-availability {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 2rem;
  margin-block: 0.5rem 1.25rem;
  padding: 1rem 0;
  border-top: 1px solid var(--hc-border);
  font-size: 0.875rem;
  line-height: 1.5;
}

.hc-talkback-availability > * { min-width: 0; margin: 0; color: var(--hc-muted); }
.hc-talkback-availability strong { color: var(--hc-cream); }

@keyframes hc-talkback-voice {
  from { transform: scaleY(0.45); }
  to { transform: scaleY(1); }
}

@keyframes hc-talkback-listening {
  0%, 100% { box-shadow: 0 0 0 2px rgba(22, 110, 120, 0.08); }
  50% { box-shadow: 0 0 0 5px rgba(22, 110, 120, 0.18); }
}

@media (max-width: 860px) {
  .hc-talkback-layout { grid-template-columns: minmax(0, 1fr); }
  .hc-talkback-conversation { border-right: 0; border-bottom: 1px solid var(--talkback-rule); }
  .hc-talkback-thread { flex: 0 1 5rem; }
  .hc-talkback-workspace { min-height: 22rem; }
  .hc-talkback-context-label { margin-top: 1rem; }
  .hc-talkback-availability { grid-template-columns: minmax(0, 1fr); gap: 0.75rem; }
}

@media (max-width: 480px) {
  .hc-talkback { --talkback-label-width: 5.75rem; border-radius: 0.8rem; }
  .hc-talkback-toolbar,
  .hc-talkback-conversation,
  .hc-talkback-workspace { padding: 1rem; }
  .hc-talkback-toolbar { align-items: stretch; }
  .hc-talkback-examples { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); width: 100%; }
  .hc-talkback .hc-talkback-example { padding: 0.5rem 0.3rem; font-size: 0.75rem; }
  .hc-talkback-timeline,
  .hc-talkback-track { gap: 0.4rem; }
  .hc-talkback-sections span { padding-inline: 0; }
  .hc-talkback-region { padding-inline: 0.25rem; margin-inline: 1px; }
  .hc-talkback-compose { gap: 0.4rem; }
  .hc-talkback-wave { width: 1.4rem; }
  .hc-talkback-workspace-header { margin-bottom: 0.7rem; }
  .hc-talkback-context-item { flex-wrap: wrap; gap: 0.15rem 0.35rem; }
}

@media (prefers-reduced-motion: reduce) {
  .hc-talkback *,
  .hc-talkback *::before,
  .hc-talkback *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}