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