/* File preview component styles */

.preview-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.preview-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  color: var(--text-primary);
}

.preview-icon {
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
}

.preview-filename {
  font-size: 1rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preview-actions {
  display: flex;
  gap: 0.5rem;
}

.preview-action-btn {
  padding: 0.5rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-action-btn:hover {
  background: var(--bg-primary);
  color: var(--text-primary);
  border-color: var(--color-primary);
}

.preview-action-btn svg {
  width: 16px;
  height: 16px;
}

/* Preview content area */
.preview-content {
  flex: 1;
  overflow: auto;
  position: relative;
}

.preview-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-secondary);
}

.preview-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Text preview */
.preview-text {
  padding: 1.5rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
}

.preview-text.with-line-numbers {
  display: flex;
}

.preview-line-numbers {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1rem 1.5rem 1.5rem;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-family: 'Fira Code', monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  user-select: none;
  text-align: right;
  min-width: 50px;
}

.preview-line-content {
  flex: 1;
  padding: 1.5rem;
  overflow-x: auto;
}

/* Code highlighting */
.preview-code {
  font-family: 'Fira Code', monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  tab-size: 4;
}

.preview-code .keyword {
  color: var(--color-primary);
  font-weight: 500;
}

.preview-code .string {
  color: var(--color-success);
}

.preview-code .comment {
  color: var(--text-secondary);
  font-style: italic;
}

.preview-code .number {
  color: var(--color-info);
}

.preview-code .function {
  color: var(--color-warning);
}

/* Image preview */
.preview-image {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background-image:
    linear-gradient(45deg, var(--bg-secondary) 25%, transparent 25%),
    linear-gradient(-45deg, var(--bg-secondary) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--bg-secondary) 75%),
    linear-gradient(-45deg, transparent 75%, var(--bg-secondary) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.preview-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: var(--shadow-lg);
}

/* PDF preview */
.preview-pdf {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.preview-pdf-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.preview-pdf-page {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  overflow: auto;
}

.preview-pdf-canvas {
  box-shadow: var(--shadow-lg);
  background: white;
}

/* Audio/Video preview */
.preview-media {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: var(--bg-secondary);
}

.preview-media audio,
.preview-media video {
  max-width: 100%;
  max-height: 100%;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

/* File info */
.preview-info {
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.preview-info-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1.5rem;
  font-size: 0.875rem;
}

.preview-info-label {
  font-weight: 500;
  color: var(--text-secondary);
}

.preview-info-value {
  color: var(--text-primary);
  word-break: break-word;
}

/* Empty state */
.preview-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 3rem;
  text-align: center;
  color: var(--text-secondary);
}

.preview-empty-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.preview-empty-text {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.preview-empty-hint {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Error state */
.preview-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 3rem;
  text-align: center;
}

.preview-error-icon {
  width: 64px;
  height: 64px;
  color: var(--color-danger);
  margin-bottom: 1rem;
}

.preview-error-message {
  font-size: 1.125rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.preview-error-details {
  font-size: 0.875rem;
  color: var(--text-secondary);
  max-width: 400px;
}

/* Search highlights */
.preview-highlight {
  background-color: var(--color-warning-light);
  color: var(--text-primary);
  padding: 0.125rem 0.25rem;
  border-radius: var(--radius-xs);
}

.preview-highlight.current {
  background-color: var(--color-primary);
  color: white;
}

/* Split view */
.preview-split {
  display: flex;
  height: 100%;
}

.preview-split-pane {
  flex: 1;
  overflow: auto;
  border-right: 1px solid var(--border-color);
}

.preview-split-pane:last-child {
  border-right: none;
}

/* Responsive */
@media (max-width: 768px) {
  .preview-header {
    flex-direction: column;
    gap: 1rem;
  }

  .preview-actions {
    width: 100%;
    justify-content: space-between;
  }

  .preview-info-grid {
    grid-template-columns: 1fr;
  }

  .preview-split {
    flex-direction: column;
  }

  .preview-split-pane {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .preview-split-pane:last-child {
    border-bottom: none;
  }
}

/* Animations */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Zoom controls */
.preview-zoom-controls {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  background: var(--bg-primary);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

.preview-zoom-btn {
  padding: 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.preview-zoom-btn:hover {
  background: var(--bg-hover);
  border-color: var(--color-primary);
}

.preview-zoom-level {
  padding: 0.5rem 0.75rem;
  min-width: 60px;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
}