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(max-width:720px){.merge-file-row{grid-template-columns:20px 32px minmax(0,1fr)}.merge-file-icon{display:none}.merge-row-actions{grid-column:1/-1;justify-content:flex-end}.merge-panel-header{flex-direction:column}}.split-app-workspace{gap:var(--space-lg);grid-template-columns:minmax(0,2.15fr) minmax(320px,.85fr);align-items:start;display:grid}.split-preview-panel,.split-settings-panel{min-width:0}.split-settings-panel{top:calc(var(--nav-height) + var(--space-sm));position:sticky}.split-document-bar{align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);margin-bottom:var(--space-md);background-color:var(--surface-1);border:1px solid var(--hairline);border-radius:var(--rounded-md);display:flex}.split-document-icon{width:38px;height:38px;color:var(--tool-organize);background-color:color-mix(in srgb, var(--tool-organize) 12%, 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