/* Shared conversation previews overlay the chat without changing its geometry. */
.ch-layout .ch-right-panel--preview {
  position: absolute;
  z-index: 84;
  inset: 0 0 0 auto;
  max-width: 100%;
  flex: 0 0 664px;
  width: 664px;
  min-width: 0;
  background: var(--wk-bg-surface);
  border-left: 1px solid var(--wk-border-subtle);
  box-shadow: var(--wk-shadow-drawer);
}

.ch-layout .ch-right-panel--preview > .wk-file-preview-panel {
  position: relative;
  inset: auto;
  width: 100%;
  max-width: none;
  height: 100%;
  border: 0;
  box-shadow: none;
}

.eva-word-preview-renderer {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  background: var(--wk-bg-base);
}

.eva-word-preview-renderer__frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--wk-bg-base);
}

.eva-word-preview-renderer__loading {
  position: absolute;
  z-index: 1;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--wk-text-secondary);
  font-size: 13px;
  background: var(--wk-bg-base);
}

.eva-word-preview-renderer__spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--wk-border-strong);
  border-top-color: var(--wk-color-accent);
  border-radius: 50%;
  animation: eva-word-preview-spin 0.8s linear infinite;
}

.eva-word-preview-renderer--error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 32px;
  color: var(--wk-text-secondary);
  text-align: center;
}

.eva-word-preview-renderer--error strong {
  color: var(--wk-text-primary);
  font-size: 16px;
}

.eva-word-preview-renderer--error button {
  min-height: 32px;
  padding: 0 14px;
  color: var(--wk-text-inverse);
  background: var(--wk-color-accent);
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}

@keyframes eva-word-preview-spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 1439px) {
  .ch-layout .ch-right-panel--preview {
    flex-basis: 380px;
    width: 380px;
  }
}

@media (max-width: 1099px) {
  .ch-layout .ch-right-panel--preview {
    position: absolute;
    z-index: 84;
    inset: 0 0 0 auto;
    width: min(480px, 100%);
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .eva-word-preview-renderer__spinner { animation: none; }
}