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1rem;border:none;background:none;color:var(--text-color);font-size:.875rem;cursor:pointer;font-family:inherit;text-align:left;transition:background-color .2s ease}.export-option:hover{background-color:#f9fafb}.editor-container.export-mode code{color:#6a737d;font-size:.75rem}@media(max-width:1200px){.editor-sidebar{width:400px;min-width:400px}}@media(max-width:768px){#app{flex-direction:column}.sidebar{width:100%;min-width:100%;border-right:none;border-bottom:1px solid var(--border-color);padding:1.5rem 1rem}.main-content{padding:1.5rem 1rem}h1{font-size:1.5rem}#equation-container .katex{font-size:1.2rem}.editor-sidebar{width:100%;min-width:100%;border-left:none;border-top:1px solid var(--border-color);max-height:50vh}.editor-sidebar.collapsed{width:100%;min-width:100%;max-height:50px}.editor-sidebar.collapsed .editor-toolbar{flex-direction:row}.editor-sidebar.collapsed .toolbar-btn{writing-mode:horizontal-tb}}