:root{--bg-primary: Canvas;--bg-secondary: Field;--text-primary: CanvasText;--text-secondary: GrayText;--border-color: silver;--border-light: #e0e0e0;--accent-add: limegreen;--accent-delete: crimson;--bg-sticky-footer: Field}@media (prefers-color-scheme: dark){:root{--bg-primary: #1e1e1e;--bg-secondary: #2d2d2d;--text-primary: #e8e8e8;--text-secondary: #a0a0a0;--border-color: #5a5a5a;--border-light: #404040;--accent-add: limegreen;--accent-delete: crimson;--bg-sticky-footer: #2d2d2d}}*{box-sizing:border-box}body{margin:0;background:var(--bg-primary);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif}#app{min-height:100vh;background:var(--bg-primary)}input,button{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-color)}.draggable-icon{cursor:move;-webkit-user-select:none;user-select:none}.title-card{border:1px solid var(--border-color);margin:8px 0;border-radius:4px;background:var(--bg-secondary)}.title-summary{display:flex;align-items:center;gap:8px;padding:8px;cursor:pointer;list-style:none}.title-summary::-webkit-details-marker{display:none}.expand-icon{font-size:.8em;transition:transform .2s ease}details[open] .expand-icon{transform:rotate(90deg)}.title-text{flex:1;font-weight:700}.edit-button{background:none;border:none;cursor:pointer;font-size:1.2em}.children-preview{padding:8px 16px;border-top:1px solid var(--border-light)}.child-preview-item{display:flex;align-items:center;gap:8px;padding:4px 0}.more-children,.no-children{color:var(--text-secondary);font-style:italic;padding:4px 0}.home-view{max-width:800px;margin:0 auto;padding:16px}.search-add-section{display:flex;gap:8px;margin-bottom:16px}.search-input{flex:1;padding:8px 12px;border:1px solid var(--border-color);border-radius:4px}.add-button{padding:8px 16px;background:var(--accent-add);color:#fff;border:none;border-radius:4px;cursor:pointer}.delete-button{background:none;border:none;cursor:pointer;font-size:1.5em;padding:0 8px;color:var(--accent-delete)}.no-titles{text-align:center;color:var(--text-secondary);padding:20px}.completed-icon{background:none;border:none;cursor:pointer;font-size:1.2em;padding:0}.children-list[data-v-e73c1d1f]{margin:16px 0}.child-item[data-v-e73c1d1f]{display:flex;align-items:center;gap:8px;padding:8px;border:1px solid var(--border-light);margin:4px 0;border-radius:4px;background:var(--bg-secondary)}.child-text[data-v-e73c1d1f]{flex:1;border:1px solid var(--border-color);padding:4px 8px}.empty-todo{display:flex;align-items:center;gap:8px;padding:8px;border:1px dashed #ccc;margin:4px 0;border-radius:4px}.empty-input{flex:1;border:none;outline:none;padding:4px 8px}.empty-input::placeholder{color:#999}.confirm-dialog{padding:0;border:none;border-radius:8px;box-shadow:0 4px 20px #0000004d;max-width:400px;width:90%}.confirm-dialog::backdrop{background:#00000080}.confirm-dialog[popover]{margin:auto}.dialog-content{padding:24px;text-align:center}.dialog-content h2{margin:0 0 16px;font-size:1.25em}.dialog-content p{margin:0 0 24px;color:var(--text-secondary)}.dialog-actions{display:flex;gap:12px;justify-content:center}.cancel-button,.confirm-button{padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-size:1em}.cancel-button{background:var(--bg-secondary);color:var(--text-primary)}.confirm-button{background:var(--accent-delete);color:#fff}.cancel-button:hover{background:var(--border-color)}.confirm-button:hover{opacity:.9}.edit-view{max-width:800px;margin:0 auto;padding:16px}.title-input{flex:1;padding:8px 12px;font-size:1.2em;font-weight:700;border:1px solid var(--border-color);border-radius:4px}.delete-button{background:none;border:none;cursor:pointer;font-size:1.5em}.not-found{text-align:center;padding:40px;color:var(--text-secondary)}.delete-view{max-width:800px;margin:0 auto;padding:16px 16px 80px}.header{display:flex;align-items:center;gap:8px;margin-bottom:16px}.home-button{background:none;border:none;cursor:pointer;font-size:1.5em}h1{font-size:1.5em;margin:0}.delete-item{border:1px solid var(--border-color);margin:8px 0;border-radius:4px;background:var(--bg-secondary)}.delete-item>details{padding:8px}.delete-item>details>summary{display:flex;align-items:center;gap:8px;cursor:pointer;list-style:none}.delete-item>details>summary::-webkit-details-marker{display:none}.delete-checkbox{width:20px;height:20px}.delete-checkbox:disabled{opacity:.5;cursor:not-allowed}.children-section{margin-left:32px;padding:8px 0}.child-item{display:flex;align-items:center;gap:8px;padding:4px 0}.no-items{text-align:center;color:var(--text-secondary);padding:40px}.sticky-footer{position:fixed;bottom:0;left:0;right:0;background:var(--bg-sticky-footer);padding:16px;border-top:1px solid var(--border-color);text-align:center}.delete-button{padding:12px 24px;background:var(--accent-delete);color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:1.1em}.delete-button:disabled{background:var(--border-color);cursor:not-allowed}