/* Voice Input Button Styles - Enhanced with Best Practices */

.input-with-voice {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.input-with-voice input,
.input-with-voice textarea {
  flex: 1;
  padding-right: 2.5rem !important; /* Make room for voice button */
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Visual feedback when listening */
.input-with-voice.voice-listening input,
.input-with-voice.voice-listening textarea {
  border-color: var(--brand, #6699cc);
  box-shadow: 0 0 0 2px rgba(102, 153, 204, 0.1);
  animation: voice-pulse 2s ease-in-out infinite;
}

@keyframes voice-pulse {
  0%, 100% {
    box-shadow: 0 0 0 2px rgba(102, 153, 204, 0.1);
  }
  50% {
    box-shadow: 0 0 0 3px rgba(102, 153, 204, 0.2);
  }
}

.voice-input-btn {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm, 6px);
  transition: all var(--transition-fast, 150ms ease);
  z-index: 10;
  color: var(--muted, #97a0ad);
  font-size: 1.1rem;
  width: 2.25rem;
  height: 2.25rem;
  outline: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.voice-input-btn:hover {
  background-color: rgba(102, 153, 204, 0.15);
  color: var(--brand, #6699cc);
  transform: translateY(-50%) scale(1.1);
}

.voice-input-btn:active {
  transform: translateY(-50%) scale(0.95);
}

.voice-input-btn:focus-visible {
  outline: 2px solid var(--brand, #6699cc);
  outline-offset: 2px;
}

/* Listening state */
.voice-input-btn.listening {
  background: linear-gradient(135deg, var(--error, #ef4444), #ff6b6b);
  color: white;
  animation: pulse-listening 1.5s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.4);
}

.voice-input-btn.listening:hover {
  background: linear-gradient(135deg, #dc2626, var(--error, #ef4444));
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.6);
}

.voice-input-btn.listening:focus-visible {
  outline-color: var(--error, #ef4444);
}

/* Permission denied state */
.voice-input-btn.permission-denied {
  opacity: 0.5;
  cursor: not-allowed;
  position: relative;
}

.voice-input-btn.permission-denied::after {
  content: '⚠️';
  position: absolute;
  top: -0.25rem;
  right: -0.25rem;
  font-size: 0.75rem;
  background: var(--error, #ef4444);
  border-radius: 50%;
  width: 1rem;
  height: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes pulse-listening {
  0%, 100% {
    opacity: 1;
    transform: translateY(-50%) scale(1);
  }
  50% {
    opacity: 0.8;
    transform: translateY(-50%) scale(1.05);
  }
}

.voice-icon {
  display: inline-block;
  font-size: 1.1rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.voice-input-btn:hover .voice-icon {
  transform: scale(1.1);
}

.voice-input-btn.listening .voice-icon {
  animation: pulse-icon 1s ease-in-out infinite;
}

@keyframes pulse-icon {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}

/* Adjust for textareas */
.input-with-voice textarea {
  padding-right: 2.5rem !important;
}

.input-with-voice textarea + .voice-input-btn {
  top: 0.5rem;
  transform: none;
  align-self: flex-start;
}

.input-with-voice textarea + .voice-input-btn.listening {
  animation: pulse-listening-textarea 1.5s ease-in-out infinite;
  transform: none;
}

@keyframes pulse-listening-textarea {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

/* Loading state (when initializing) */
.voice-input-btn.loading {
  opacity: 0.6;
  cursor: wait;
}

.voice-input-btn.loading .voice-icon {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Dark mode is default, but ensure light mode compatibility */
@media (prefers-color-scheme: light) {
  .voice-input-btn {
    color: var(--muted, #666);
  }
  
  .voice-input-btn:hover {
    background-color: rgba(102, 153, 204, 0.1);
    color: var(--brand, #0066cc);
  }
  
  .input-with-voice.voice-listening input,
  .input-with-voice.voice-listening textarea {
    border-color: var(--brand, #0066cc);
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.1);
  }
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .voice-input-btn {
    width: 2rem;
    height: 2rem;
    font-size: 1rem;
    right: 0.25rem;
    padding: 0.375rem;
  }
  
  .input-with-voice input,
  .input-with-voice textarea {
    padding-right: 2.25rem !important;
  }
  
  .voice-input-btn:hover {
    transform: translateY(-50%) scale(1.05);
  }
  
  .input-with-voice textarea + .voice-input-btn {
    top: 0.375rem;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .voice-input-btn {
    border: 2px solid currentColor;
  }
  
  .voice-input-btn.listening {
    border-color: var(--error, #ef4444);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .voice-input-btn,
  .voice-input-btn.listening,
  .voice-icon,
  .input-with-voice.voice-listening input,
  .input-with-voice.voice-listening textarea {
    animation: none;
    transition: none;
  }
  
  .voice-input-btn:hover {
    transform: translateY(-50%);
  }
  
  .input-with-voice textarea + .voice-input-btn:hover {
    transform: none;
  }
}

/* Screen reader only text */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}