.tool-main{flex-direction:column;flex:1;width:100%;max-width:100%;padding:0;display:flex;overflow:hidden}.tool-header{border-bottom:1px solid var(--color-border);background-color:var(--color-surface-raised);flex-wrap:wrap;flex-shrink:0;justify-content:space-between;align-items:flex-start;gap:1.5rem;padding:1.5rem 2rem;display:flex}.tool-header__title{flex-direction:column;gap:.25rem;display:flex}.tool-title{color:var(--color-text-title);margin:0;font-size:1.3rem;font-weight:700}.tool-subtitle{color:var(--color-text-muted);margin:0;font-size:.85rem}.toggle-label{color:var(--color-text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:.45rem;font-size:.85rem;display:flex}.toggle-label input[type=checkbox]{width:14px;height:14px;accent-color:var(--color-accent);cursor:pointer}.toggle-label:hover{color:var(--color-text-primary)}.view-toggle{border:1px solid var(--color-border);border-radius:6px;display:flex;overflow:hidden}.view-toggle__btn{border:none;border-right:1px solid var(--color-border);color:var(--color-text-secondary);cursor:pointer;background:0 0;padding:.35rem .85rem;font-size:.82rem;font-weight:500;transition:background-color .15s,color .15s}.view-toggle__btn:last-child{border-right:none}.view-toggle__btn:hover{background-color:var(--color-surface-raised);color:var(--color-text-primary)}.view-toggle__btn.is-active{background-color:var(--color-accent-bg);color:var(--color-accent)}.editors-row{border-bottom:1px solid var(--color-border);flex-shrink:0;grid-template-columns:1fr 1fr;gap:0;display:grid}.editor-pane{flex-direction:column;min-width:0;display:flex}.editor-pane:first-child{border-right:1px solid var(--color-border)}.editor-pane__label{background-color:var(--color-surface-raised);border-bottom:1px solid var(--color-border);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;flex-shrink:0;justify-content:space-between;align-items:center;padding:.4rem 1rem;font-size:.78rem;font-weight:600;display:flex}.editor-clear-btn{color:var(--color-text-faint);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:.1rem .35rem;font-size:.75rem;transition:color .15s}.editor-clear-btn:hover{color:var(--color-text-primary)}.text-editor{resize:vertical;background-color:var(--color-surface-deep);width:100%;height:220px;color:var(--color-text-primary);tab-size:4;white-space:pre;caret-color:var(--color-accent);border:none;outline:none;padding:.85rem 1rem;font-family:Menlo,Monaco,Consolas,Courier New,monospace;font-size:.82rem;line-height:1.6;overflow-x:auto}.text-editor::placeholder{color:var(--color-text-dim)}.text-editor:focus{box-shadow:inset 0 0 0 1px var(--color-accent-bg)}.diff-stats{background-color:var(--color-surface-raised);border-bottom:1px solid var(--color-border);flex-shrink:0;align-items:center;gap:1.25rem;padding:.55rem 1.25rem;font-size:.8rem;display:flex}.diff-stats__item{font-variant-numeric:tabular-nums;font-weight:600}.diff-stats__item--add{color:var(--color-success)}.diff-stats__item--del{color:var(--color-danger)}.diff-stats__item--unchanged{color:var(--color-text-muted);font-weight:400}.diff-stats__identical{color:var(--color-success);font-weight:600}.diff-output{flex:1;font-family:Menlo,Monaco,Consolas,Courier New,monospace;font-size:.82rem;line-height:1.6;overflow:auto}.line-no{text-align:right;min-width:3.5ch;color:var(--color-text-dim);-webkit-user-select:none;user-select:none;font-variant-numeric:tabular-nums;flex-shrink:0;padding-right:.75rem;display:inline-block}.line-sigil{-webkit-user-select:none;user-select:none;flex-shrink:0;width:1.2ch;padding-right:.5rem;display:inline-block}.line-content{white-space:pre;word-break:normal;flex:1;min-width:0;overflow:visible}.split-view{flex-direction:column;min-width:0;display:flex}.split-row{grid-template-columns:1fr 1fr;min-width:0;display:grid}.split-row:hover .split-cell{filter:brightness(1.08)}.split-cell{border-right:1px solid var(--color-border-subtle);align-items:baseline;min-width:0;padding:0 .75rem;display:flex;overflow:hidden}.split-cell:last-child{border-right:none}.split-cell--ctx{color:var(--color-text-primary);background-color:#0000}.split-cell--del{background-color:var(--color-diff-del-bg);color:var(--color-diff-del-text)}.split-cell--del .line-no,.split-cell--del .line-sigil{color:var(--color-diff-del-gutter)}.split-cell--add{background-color:var(--color-diff-add-bg);color:var(--color-diff-add-text)}.split-cell--add .line-no,.split-cell--add .line-sigil{color:var(--color-diff-add-gutter)}.split-cell--empty{background-color:var(--color-surface-raised);color:#0000}.split-cell--ctx .line-no{color:var(--color-text-dim)}.split-cell--ctx .line-sigil{color:#0000}.char-highlight{border-radius:2px;padding:0 1px}.char-highlight--del{background-color:var(--color-char-del-bg);color:var(--color-diff-del-text)}.char-highlight--add{background-color:var(--color-char-add-bg);color:var(--color-diff-add-text)}.unified-view{flex-direction:column;display:flex}.unified-row{align-items:baseline;padding:0 .75rem;display:flex}.unified-row:hover{filter:brightness(1.1)}.unified-row--ctx{color:var(--color-text-primary);background-color:#0000}.unified-row--del{background-color:var(--color-diff-del-bg);color:var(--color-diff-del-text)}.unified-row--del .line-no,.unified-row--del .line-sigil{color:var(--color-diff-del-gutter)}.unified-row--add{background-color:var(--color-diff-add-bg);color:var(--color-diff-add-text)}.unified-row--add .line-no,.unified-row--add .line-sigil{color:var(--color-diff-add-gutter)}.unified-row--ctx .line-no{color:var(--color-text-dim)}.unified-row--ctx .line-sigil{color:#0000}.line-no--old{min-width:3.5ch}.line-no--new{min-width:3.5ch;margin-right:.5rem}@media (width<=700px){.tool-header{flex-direction:column;gap:.75rem;padding:1rem}.editors-row{grid-template-columns:1fr}.editor-pane:first-child{border-right:none;border-bottom:1px solid var(--color-border)}.split-row{grid-template-columns:1fr}.split-cell:first-child{border-right:none;border-bottom:1px solid var(--color-border-subtle)}}