/* read-aloud-text-to-speech-reader tool.css */
:root {
  }

.rats-main {
  box-sizing: border-box;
  max-width: 46rem;
  margin-inline: auto;
  padding: 1.5rem 1rem 3rem;
}

.rats-card {
  box-sizing: border-box;
  margin: 0 auto;
  max-width: 900px;
  background: var(--tf-surface, #ffffff);
  border: 1px solid var(--tf-rule);
  border-radius: 2px;
  padding: 1.5rem;
  box-shadow: none;
  margin-bottom: 2rem;
  position: relative;
}

.rats-top-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--tf-rule);
  margin-bottom: 1.25rem;
}

.rats-presets-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.rats-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--tf-text-muted, #4b5563);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.rats-preset-chip {
  background: var(--tf-accent-light);
  color: var(--tf-accent);
  border: 1px solid var(--tf-accent-border);
  padding: 0.3rem 0.65rem;
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.rats-preset-chip:hover {
  background: var(--tf-accent);
  color: #ffffff;
}

.rats-btn-ghost {
  background: transparent;
  color: var(--tf-text-muted, #6b7280);
  border: 1px solid transparent;
  padding: 0.35rem 0.65rem;
  font-size: 0.8125rem;
  border-radius: 2px;
  cursor: pointer;
}

.rats-btn-ghost:hover {
  color: var(--tf-ink);
  border-color: var(--tf-rule);
}

/* Audio Controls */
.rats-controls-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 1.25rem;
  background: var(--tf-surface-variant, #faf5f8);
  border: 1px solid var(--tf-accent-border);
  border-radius: 2px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 820px) {
  .rats-controls-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 540px) {
  .rats-controls-grid {
    grid-template-columns: 1fr;
  }
}

.rats-control-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.rats-voice-col {
  min-width: 200px;
}

.rats-field-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--tf-ink);
}

.rats-select {
  padding: 0.45rem 0.65rem;
  font-size: 0.875rem;
  border: 1px solid var(--tf-rule);
  border-radius: 2px;
  background: var(--tf-surface, #ffffff);
  color: var(--tf-ink);
}

.rats-slider-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.rats-slider-val {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--tf-accent);
  font-family: var(--tf-font-mono, monospace);
}

.rats-slider {
  accent-color: var(--tf-accent);
  cursor: pointer;
}

/* Stats summary */
.rats-stats-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  padding: 0.6rem 0.85rem;
  background: var(--tf-surface, #ffffff);
  border: 1px solid var(--tf-rule);
  border-radius: 2px;
  margin-bottom: 1rem;
}

.rats-stat-item {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.rats-stat-label {
  font-size: 0.75rem;
  color: var(--tf-text-muted, #6b7280);
}

.rats-stat-value {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--tf-ink);
  font-family: var(--tf-font-mono, monospace);
}

.rats-badge-idle {
  font-size: 0.75rem;
  font-weight: 600;
  color: #4b5563;
  background: #f3f4f6;
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

.rats-badge-playing {
  font-size: 0.75rem;
  font-weight: 700;
  color: #ffffff;
  background: #16a34a;
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

.rats-badge-paused {
  font-size: 0.75rem;
  font-weight: 700;
  color: #ffffff;
  background: #d97706;
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

/* Text Editor & Karaoke */
.rats-editor-wrapper {
  position: relative;
  min-height: 280px;
  margin-bottom: 1.25rem;
}

.rats-textarea,
.rats-highlight-overlay {
  width: 100%;
  min-height: 280px;
  padding: 1rem;
  font-size: 1.05rem;
  line-height: 1.65;
  border: 1px solid var(--tf-rule);
  border-radius: 2px;
  box-sizing: border-box;
  font-family: inherit;
  color: var(--tf-ink);
}

.rats-textarea {
  background: var(--tf-surface, #ffffff);
  resize: vertical;
}

.rats-textarea:focus {
  outline: none;
  border-color: var(--tf-accent);
  box-shadow: none;
}

.rats-highlight-overlay {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  background: var(--tf-surface, #ffffff);
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.rats-word-active {
  background: #fef08a;
  color: var(--tf-ink);
  padding: 0 2px;
  border-radius: 2px;
  box-shadow: none;
}

/* Playback bar */
.rats-playback-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--tf-rule);
}

.rats-main-buttons,
.rats-secondary-buttons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.rats-btn-primary {
  background: var(--tf-accent);
  color: var(--tf-accent-ink, #ffffff);
  border: 1px solid var(--tf-accent);
  padding: 0.65rem 1.4rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.rats-btn-primary:hover {
  background: var(--tf-accent-hover);
}

.rats-btn-secondary {
  background: var(--tf-surface, #ffffff);
  color: var(--tf-ink);
  border: 1px solid var(--tf-rule);
  padding: 0.65rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.rats-btn-secondary:hover:not(:disabled) {
  border-color: var(--tf-accent);
  color: var(--tf-accent);
}

.rats-btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.rats-toast {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--tf-accent);
  color: #ffffff;
  padding: 0.5rem 1rem;
  border-radius: 2px;
  font-size: 0.8125rem;
  font-weight: 600;
  box-shadow: none;
}

.rats-hidden {
  display: none !important;
}