/* Settings Panel: Accordion, Voice List, Close Button */

/* Close button at top-right of settings panel */
#settings-menu .panel-close-btn {
  position: absolute;
  top: 8px;
  right: 10px;
  z-index: 5;
  width: 32px;
  height: 32px;
  line-height: 28px;
  text-align: center;
  border: none;
  border-radius: 6px;
  background: rgba(0,0,0,0.06);
  color: inherit;
  cursor: pointer;
  font-size: 20px;
}
:root.dark #settings-menu .panel-close-btn,
.dark #settings-menu .panel-close-btn {
  background: rgba(255,255,255,0.08);
}
#settings-menu .panel-close-btn:hover {
  background: rgba(0,0,0,0.12);
}
:root.dark #settings-menu .panel-close-btn:hover,
.dark #settings-menu .panel-close-btn:hover {
  background: rgba(255,255,255,0.16);
}

/* Accordion */
#settings-menu .accordion {
  display: block;
}
#settings-menu .accordion-item {
  margin-bottom: 8px;
}
#settings-menu .accordion-header {
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  padding-right: 28px; /* 预留箭头位置 */
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 8px;
  background: rgba(0,0,0,0.03);
  color: inherit;
  cursor: pointer;
  font-size: 14px;
  position: relative; /* 供箭头定位 */
}
:root.dark #settings-menu .accordion-header,
.dark #settings-menu .accordion-header {
  border-color: rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
}
#settings-menu .accordion-header:hover {
  background: rgba(0,0,0,0.06);
}
:root.dark #settings-menu .accordion-header:hover,
.dark #settings-menu .accordion-header:hover {
  background: rgba(255,255,255,0.1);
}
#settings-menu .accordion-header::after {
  content: '▸';
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.75;
  transition: transform 0.2s ease, opacity 0.2s ease;
  font-size: 14px;
}
#settings-menu .accordion .accordion-item.open > .accordion-header::after {
  content: '▾';
}
#settings-menu .accordion-panel {
  padding: 8px 4px 2px 4px;
}

/* Voice list */
#settings-menu .voice-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
#settings-menu .voice-item-btn {
  padding: 6px 10px;
  font-size: 13px;
  border: 1px solid rgba(0,0,0,0.15);
  border-radius: 999px;
  background: rgba(0,0,0,0.04);
  color: inherit;
  cursor: pointer;
}
:root.dark #settings-menu .voice-item-btn,
.dark #settings-menu .voice-item-btn {
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
}
#settings-menu .voice-item-btn:hover {
  background: rgba(0,0,0,0.08);
}
:root.dark #settings-menu .voice-item-btn:hover,
.dark #settings-menu .voice-item-btn:hover {
  background: rgba(255,255,255,0.12);
}
#settings-menu .voice-item-btn.active {
  border-color: #3b82f6;
  background: #3b82f6;
  color: #fff;
}

/* Small hint text */
#settings-menu .voice-hint {
  margin-top: 6px;
  font-size: 12px;
  opacity: 0.7;
}

/* Voice settings panel enhancements */
#voice-settings-menu h4 {
  margin: 0;
  margin-bottom: 6px;
  font-size: 1.1rem;
  text-align: center;
  opacity: 0.95;
}

#voice-settings-menu .voice-group {
  margin: 8px 0 6px 0;
  padding: 4px 0;
}

#voice-settings-menu .voice-group-title {
  font-size: 13px;
  opacity: 0.8;
  margin: 6px 0;
}

#voice-settings-menu .voice-controls {
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 10px;
  background: rgba(0,0,0,0.03);
}

:root.dark #voice-settings-menu .voice-controls,
.dark #voice-settings-menu .voice-controls {
  border-color: rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
}

#voice-settings-menu .voice-control-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 6px 0;
}

#voice-settings-menu .voice-control-row label {
  min-width: 80px;
  font-size: 13px;
  opacity: 0.9;
}

#voice-settings-menu input[type='range'] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  background: rgba(0,0,0,0.12);
  outline: none;
}
:root.dark #voice-settings-menu input[type='range'],
.dark #voice-settings-menu input[type='range'] {
  background: rgba(255,255,255,0.18);
}

/* WebKit thumb */
#voice-settings-menu input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59,130,246,0.3);
  border: none;
  cursor: pointer;
}

/* Firefox track + thumb */
#voice-settings-menu input[type='range']::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #3b82f6;
  border: none;
  cursor: pointer;
}
#voice-settings-menu input[type='range']::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: rgba(0,0,0,0.12);
}
:root.dark #voice-settings-menu input[type='range']::-moz-range-track,
.dark #voice-settings-menu input[type='range']::-moz-range-track {
  background: rgba(255,255,255,0.18);
}

#voice-settings-menu .voice-list {
  margin-top: 6px;
}

#voice-settings-menu .voice-group .voice-list {
  gap: 10px;
}

#voice-settings-menu .voice-item-btn {
  padding: 6px 12px;
  font-size: 13px;
}

#voice-settings-menu .voice-item-btn.active {
  box-shadow: 0 0 0 2px rgba(59,130,246,0.25);
}