/* ============================================
   TOOL — Shared tool page styles
   ============================================ */

/* --- Tool Layout --- */
.tool-page {
  padding-bottom: var(--space-3xl);
}

.tool-header {
  margin-bottom: var(--space-2xl);
}

.tool-header h1 {
  margin-bottom: var(--space-sm);
}

.tool-header p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* --- Tool Controls --- */
.tool-controls {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

/* --- Tool Button (contextual overrides for .btn in tool pages) --- */
.tool-page .btn { gap: var(--space-xs); padding: 0.5rem 1rem; font-size: 0.82rem; }
.tool-page .btn--sm { padding: 0.3rem 0.6rem; font-size: 0.75rem; }

/* --- Tool Textarea --- */
.tool-textarea {
  width: 100%;
  min-height: 160px;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  resize: vertical;
  transition: border-color var(--transition);
}

.tool-textarea:focus {
  border-color: var(--color-text);
}

.tool-textarea:focus:not(:focus-visible) {
  outline: none;
}

.tool-textarea[readonly] {
  background: var(--color-surface);
}

/* --- Tool Split (2-col grid) --- */
.tool-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.tool-split__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.tool-split__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
}

/* --- Tool Upload Area --- */
.tool-upload-area {
  border: 2px dashed var(--color-border);
  border-radius: 8px;
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: var(--space-lg);
}

.tool-upload-area:hover,
.tool-upload-area.dragover {
  border-color: var(--color-accent);
  background: rgba(230, 57, 70, 0.03);
}

.tool-upload-area p {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.tool-upload-area p:first-child {
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

/* --- Tool Status --- */
.tool-status {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: var(--space-sm) var(--space-md);
  border-radius: 6px;
  margin-bottom: var(--space-md);
}

.tool-status--success {
  color: var(--color-success);
  background: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
}

.tool-status--error {
  color: var(--color-error);
  background: var(--color-error-bg);
  border: 1px solid var(--color-error-border);
}

.tool-status--info {
  color: var(--color-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

/* --- Tool Stats --- */
.tool-stats {
  display: flex;
  gap: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
}

/* --- Mode Toggle --- */
.tool-mode-toggle {
  display: flex;
  gap: 2px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 2px;
  width: fit-content;
  margin-bottom: var(--space-lg);
}

.tool-mode-btn {
  padding: 0.4rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  border: none;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-muted);
}

.tool-mode-btn.active {
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

/* --- Tool Output (formatted code display) --- */
.tool-output {
  width: 100%;
  min-height: 160px;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  overflow: auto;
  white-space: pre;
}

/* --- Tool Progress Bar --- */
.tool-progress {
  width: 100%;
  height: 4px;
  background: var(--color-surface);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.tool-progress__fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width 0.3s ease;
  width: 0%;
}

/* --- Tool Item List (for PDF file list, etc) --- */
.tool-item-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  min-height: 80px;
}

.tool-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: move;
  transition: all var(--transition);
}

.tool-item:hover {
  border-color: var(--color-muted);
}

.tool-item.dragging {
  opacity: 0.5;
}

.tool-item.drag-over {
  border-color: var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 5%, transparent);
}

.tool-item__info {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  min-width: 0;
}

.tool-item__name {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tool-item__meta {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.tool-item__remove {
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg);
  cursor: pointer;
  color: var(--color-muted);
  transition: all var(--transition);
}

.tool-item__remove:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --- Preview Container (side-by-side images) --- */
.tool-preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.tool-preview-grid__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.tool-preview-grid__img-wrap {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-surface);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-preview-grid__img-wrap--checker {
  background-image:
    linear-gradient(45deg, var(--color-checker, #eee) 25%, transparent 25%),
    linear-gradient(-45deg, var(--color-checker, #eee) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--color-checker, #eee) 75%),
    linear-gradient(-45deg, transparent 75%, var(--color-checker, #eee) 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  background-color: var(--color-bg);
}

.tool-preview-grid__img-wrap img {
  max-width: 100%;
  max-height: 400px;
}

/* --- Color Picker Specific --- */
.tool-color-input {
  width: 100%;
  height: 80px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  padding: 4px;
  background: transparent;
  margin-bottom: var(--space-md);
}

.tool-color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.tool-color-input::-webkit-color-swatch {
  border: none;
  border-radius: 4px;
}

.tool-color-input::-moz-color-swatch {
  border: none;
  border-radius: 4px;
}

.tool-input-row {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  margin-bottom: var(--space-sm);
}

.tool-input-row label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  min-width: 36px;
  color: var(--color-muted);
}

.tool-input-row input[type="text"] {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
}

.tool-input-row input[type="text"]:focus {
  outline: none;
  border-color: var(--color-text);
}

/* --- Markdown Preview Styles --- */
.tool-md-preview {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  overflow-y: auto;
  flex-grow: 1;
  min-height: 300px;
  line-height: 1.7;
}

.tool-md-preview h1 { font-size: 1.75rem; margin: var(--space-lg) 0 var(--space-md); border-bottom: 1px solid var(--color-border); padding-bottom: var(--space-sm); }
.tool-md-preview h2 { font-size: 1.4rem; margin: var(--space-lg) 0 var(--space-sm); }
.tool-md-preview h3 { font-size: 1.15rem; margin: var(--space-md) 0 var(--space-sm); }
.tool-md-preview p { margin-bottom: var(--space-md); color: var(--color-text); }
.tool-md-preview blockquote {
  border-left: 3px solid var(--color-accent);
  margin: var(--space-md) 0;
  padding-left: var(--space-md);
  color: var(--color-muted);
}
.tool-md-preview code {
  font-family: var(--font-mono);
  background: var(--color-code-bg);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  font-size: 0.88em;
}
.tool-md-preview pre {
  background: var(--color-code-bg);
  border-radius: 6px;
  padding: var(--space-md);
  overflow-x: auto;
  margin: var(--space-md) 0;
}
.tool-md-preview pre code {
  background: none;
  padding: 0;
}
.tool-md-preview a { color: var(--color-accent); }
.tool-md-preview a:hover { text-decoration: underline; }
.tool-md-preview table { border-collapse: collapse; width: 100%; margin: var(--space-md) 0; }
.tool-md-preview th, .tool-md-preview td { border: 1px solid var(--color-border); padding: var(--space-sm) var(--space-md); text-align: left; }
.tool-md-preview th { background: var(--color-surface); font-weight: 500; }
.tool-md-preview ul, .tool-md-preview ol { padding-left: var(--space-lg); margin-bottom: var(--space-md); }
.tool-md-preview li { margin-bottom: var(--space-xs); }
.tool-md-preview ul { list-style: disc; }
.tool-md-preview ol { list-style: decimal; }
.tool-md-preview hr { margin: var(--space-lg) 0; }
.tool-md-preview img { border-radius: 6px; }

/* --- JSON Syntax Highlighting --- */
.json-string { color: var(--color-syntax-string); }
.json-number { color: var(--color-syntax-number); }
.json-boolean { color: var(--color-syntax-boolean); }
.json-null { color: var(--color-syntax-null); }
.json-key { color: var(--color-accent); font-weight: 500; }

/* --- Tree View --- */
.tool-tree-view {
  width: 100%;
  min-height: 160px;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  overflow: auto;
}

.tree-node { margin-left: 20px; cursor: pointer; }
.tree-key { color: var(--color-accent); font-weight: 500; }
.tree-string { color: var(--color-syntax-string); }
.tree-number { color: var(--color-syntax-number); }
.tree-boolean { color: var(--color-syntax-boolean); }
.tree-null { color: var(--color-syntax-null); }
.tree-toggle { color: var(--color-muted); margin-right: 4px; }
.tree-collapsed .tree-children { display: none; }

/* --- Markdown Toolbar --- */
.tool-toolbar {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: var(--space-md);
}

.tool-toolbar__btn {
  padding: 0.35rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-muted);
}

.tool-toolbar__btn:hover {
  background: var(--color-bg);
  border-color: var(--color-border);
  color: var(--color-text);
}

/* --- Editor Container (split for markdown) --- */
.tool-editor-split {
  display: flex;
  gap: var(--space-lg);
  min-height: 400px;
  margin-bottom: var(--space-md);
}

.tool-editor-split > * {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tool-editor-split .tool-textarea {
  flex-grow: 1;
  min-height: 400px;
  resize: none;
}

.tool-editor-split .tool-md-preview {
  flex-grow: 1;
}

/* --- Full Preview Modal --- */
.tool-full-preview {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
  z-index: 1000;
  padding: var(--space-xl);
  overflow-y: auto;
}

.tool-full-preview__close {
  position: fixed;
  top: var(--space-md);
  right: var(--space-md);
  z-index: 1001;
}

/* --- Spinner --- */
.tool-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  border-top-color: var(--color-accent);
  animation: tool-spin 0.6s linear infinite;
  margin-right: var(--space-xs);
  vertical-align: middle;
}

@keyframes tool-spin {
  to { transform: rotate(360deg); }
}

/* --- File Info --- */
.tool-file-info {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.85rem;
  margin-bottom: var(--space-md);
}

.tool-file-info span {
  display: block;
  color: var(--color-muted);
  margin-bottom: 2px;
}

/* --- Image Preview --- */
.tool-img-preview {
  max-width: 100%;
  max-height: 300px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: var(--space-md);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .tool-split {
    grid-template-columns: 1fr;
  }

  .tool-editor-split {
    flex-direction: column;
  }

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

  .tool-stats {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .tool-controls {
    flex-wrap: wrap;
  }
}