.qk-read-aloud-bar {
  position: fixed;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  width: min(760px, calc(100vw - 24px));
  z-index: 100030;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.qk-read-aloud-bar--open {
  pointer-events: auto;
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.qk-read-aloud-bar--sidebar {
  position: static;
  left: auto;
  top: auto;
  width: 100%;
  transform: none;
  z-index: 1;
  margin: 0 0 12px 0;
}

.qk-read-aloud-bar--sidebar:not(.qk-read-aloud-bar--open) {
  display: none;
}

.qk-read-aloud-bar--sidebar.qk-read-aloud-bar--open {
  transform: none;
}

.qk-read-aloud-bar--sidebar .qk-read-aloud-status {
  display: none;
}

.qk-read-aloud-bar__inner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: 0 16px 32px -20px rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
}

.dark .qk-read-aloud-bar__inner {
  background: rgba(17, 24, 39, 0.96);
  border-color: rgba(100, 116, 139, 0.45);
  box-shadow: 0 16px 32px -20px rgba(0, 0, 0, 0.65);
}

.qk-read-aloud-btn {
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #334155;
  height: 34px;
  min-width: 34px;
  border-radius: 8px;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.qk-read-aloud-btn:hover {
  border-color: #94a3b8;
  color: #0f172a;
}

.qk-read-aloud-btn:focus-visible {
  outline: 2px solid rgba(30, 58, 95, 0.35);
  outline-offset: 1px;
}

.dark .qk-read-aloud-btn {
  border-color: #475569;
  background: #111827;
  color: #e5e7eb;
}

.dark .qk-read-aloud-btn:hover {
  border-color: #64748b;
  color: #ffffff;
}

.qk-read-aloud-btn--play {
  background: var(--platform-primary, #1e3a5f);
  border-color: var(--platform-primary, #1e3a5f);
  color: #ffffff;
  min-width: 64px;
}

.qk-read-aloud-btn--play:hover {
  filter: brightness(1.05);
}

.qk-read-aloud-rate {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.qk-read-aloud-rate__value {
  min-width: 42px;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: #475569;
}

.dark .qk-read-aloud-rate__value {
  color: #cbd5e1;
}

.qk-read-aloud-status {
  margin: 0;
  font-size: 12px;
  color: #64748b;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dark .qk-read-aloud-status {
  color: #94a3b8;
}

.qk-read-aloud-active-block {
  outline: 2px solid color-mix(in srgb, var(--platform-primary, #1e3a5f) 38%, #ffffff 62%);
  outline-offset: 3px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--platform-primary, #1e3a5f) 8%, #ffffff 92%);
  transition: background-color 0.2s ease;
}

.qk-read-aloud-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  margin: 0 0 16px 0;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--platform-primary, #1e3a5f) 35%, transparent 65%);
  background: color-mix(in srgb, var(--platform-primary, #1e3a5f) 8%, #ffffff 92%);
  color: var(--platform-primary, #1e3a5f);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.qk-read-aloud-trigger--sidebar {
  width: 100%;
  justify-content: center;
  margin-bottom: 12px;
}

.qk-read-aloud-trigger:hover {
  border-color: color-mix(in srgb, var(--platform-primary, #1e3a5f) 65%, transparent 35%);
  background: color-mix(in srgb, var(--platform-primary, #1e3a5f) 14%, #ffffff 86%);
}

.qk-read-aloud-trigger:focus-visible {
  outline: 2px solid var(--platform-primary, #1e3a5f);
  outline-offset: 2px;
}

.dark .qk-read-aloud-trigger {
  background: color-mix(in srgb, var(--platform-primary, #1e3a5f) 18%, #111827 82%);
  border-color: color-mix(in srgb, var(--platform-primary, #1e3a5f) 45%, transparent 55%);
  color: color-mix(in srgb, var(--platform-primary, #1e3a5f) 120%, #ffffff);
}

.dark .qk-read-aloud-trigger:hover {
  background: color-mix(in srgb, var(--platform-primary, #1e3a5f) 25%, #111827 75%);
  border-color: color-mix(in srgb, var(--platform-primary, #1e3a5f) 75%, transparent 25%);
}

.qk-read-aloud-trigger__icon {
  width: 18px;
  height: 18px;
  display: inline-block;
  flex-shrink: 0;
}

@media (max-width: 680px) {
  .qk-read-aloud-bar {
    width: calc(100vw - 16px);
  }

  .qk-read-aloud-bar__inner {
    flex-wrap: wrap;
    row-gap: 6px;
  }

  .qk-read-aloud-status {
    flex-basis: 100%;
    order: 10;
  }

  .qk-read-aloud-trigger {
    width: 100%;
    justify-content: center;
  }
}