/**
 * Voice Demo CSS
 * Styles for voice-activated demo interaction
 */

/* ============================================================================
   VOICE BUTTON STATES
   ============================================================================ */

.demo-widget__voice {
  position: relative;
  overflow: visible;
}

/* Listening state - Animated ring */
.demo-widget__voice.is-listening {
  background: linear-gradient(
    135deg,
    var(--color-ferni, var(--color-ferni)) 0%,
    var(--color-ferni-secondary) 100%
  );
  color: white;
  animation: voice-pulse 1.5s ease-in-out infinite;
}

.demo-widget__voice.is-listening::before {
  content: '';
  position: absolute;
  inset: -4px;
  border: 2px solid var(--color-ferni, var(--color-ferni));
  border-radius: 50%;
  opacity: 0;
  animation: voice-ring 1.5s ease-out infinite;
}

.demo-widget__voice.is-listening::after {
  content: '';
  position: absolute;
  inset: -8px;
  border: 1px solid var(--color-ferni, var(--color-ferni));
  border-radius: 50%;
  opacity: 0;
  animation: voice-ring 1.5s ease-out 0.3s infinite;
}

@keyframes voice-pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes voice-ring {
  0% {
    transform: scale(1);
    opacity: 0.6;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

/* Processing state */
.demo-widget__voice.is-processing {
  opacity: 0.7;
  pointer-events: none;
}

.demo-widget__voice.is-processing svg {
  animation: voice-processing 1s linear infinite;
}

@keyframes voice-processing {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Error state */
.demo-widget__voice.is-error {
  background: rgba(200, 100, 100, 0.1);
  animation: voice-error 0.3s ease;
}

@keyframes voice-error {
  0%, 100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

/* ============================================================================
   WIDGET VOICE ACTIVE STATE
   ============================================================================ */

.demo-widget.is-voice-active {
  /* Subtle highlight */
}

.demo-widget.is-voice-active .demo-widget__input-area {
  background: linear-gradient(
    180deg,
    rgba(74, 103, 65, 0.05) 0%,
    transparent 100%
  );
}

.demo-widget.is-voice-active .demo-widget__input {
  border-color: var(--color-ferni, var(--color-ferni));
  background: rgba(74, 103, 65, 0.02);
}

/* ============================================================================
   MICROPHONE PERMISSION ERROR
   ============================================================================ */

.demo-widget__mic-error {
  padding: 12px 16px;
  background: rgba(200, 100, 100, 0.08);
  border-bottom: 1px solid rgba(200, 100, 100, 0.1);
  text-align: center;
  animation: mic-error-appear 0.3s ease-out;
}

.demo-widget__mic-error p {
  margin: 0 0 4px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-error);
}

.demo-widget__mic-error small {
  font-size: var(--text-2xs);
  color: var(--color-text-secondary, var(--color-text-secondary));
  opacity: 0.8;
}

@keyframes mic-error-appear {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================================
   VOICE WAVEFORM VISUALIZATION (Optional Enhancement)
   ============================================================================ */

.demo-widget__waveform {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  height: 24px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.demo-widget.is-voice-active .demo-widget__waveform {
  opacity: 1;
}

.demo-widget__waveform-bar {
  width: 3px;
  height: 8px;
  background: var(--color-ferni, var(--color-ferni));
  border-radius: var(--radius-xs);
  animation: waveform-bar 0.8s ease-in-out infinite;
}

.demo-widget__waveform-bar:nth-child(1) { animation-delay: 0ms; }
.demo-widget__waveform-bar:nth-child(2) { animation-delay: 100ms; }
.demo-widget__waveform-bar:nth-child(3) { animation-delay: 200ms; }
.demo-widget__waveform-bar:nth-child(4) { animation-delay: 300ms; }
.demo-widget__waveform-bar:nth-child(5) { animation-delay: 400ms; }

@keyframes waveform-bar {
  0%, 100% {
    height: 8px;
    opacity: 0.4;
  }
  50% {
    height: 20px;
    opacity: 1;
  }
}

/* ============================================================================
   TRANSCRIPT DISPLAY ANIMATION
   ============================================================================ */

/* Animate text appearing as user speaks */
.demo-widget__input.is-transcribing {
  animation: transcript-appear 0.1s ease-out;
}

@keyframes transcript-appear {
  from {
    opacity: 0.7;
  }
  to {
    opacity: 1;
  }
}

/* ============================================================================
   VOICE TOOLTIP
   ============================================================================ */

.demo-widget__voice-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 6px 12px;
  background: var(--color-text-primary, var(--color-text-primary));
  color: white;
  font-size: var(--text-2xs);
  font-weight: 500;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  transition: 
    opacity 0.2s ease,
    transform 0.2s ease;
  pointer-events: none;
}

.demo-widget__voice-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-text-primary, var(--color-text-primary));
}

.demo-widget__voice:hover .demo-widget__voice-tooltip,
.demo-widget__voice:focus .demo-widget__voice-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.demo-widget__voice.is-listening .demo-widget__voice-tooltip {
  display: none;
}