:root{--text:#64748b;--text-h:#1e293b;--bg:#f8fafc;--surface:#fff;--border:#e2e8f0;--border-hover:#cbd5e1;--accent:#6366f1;--accent-light:#818cf8;--accent-bg:#6366f114;--accent-border:#6366f14d;--danger:#ef4444;--danger-bg:#ef444414;--success:#22c55e;--warning:#f59e0b;--priority-high:#ef4444;--priority-high-bg:#ef44441a;--priority-medium:#f59e0b;--priority-medium-bg:#f59e0b1a;--priority-low:#22c55e;--priority-low-bg:#22c55e1a;--overdue:#ef4444;--overdue-bg:#ef44440f;--shadow-sm:0 1px 2px #0000000d;--shadow:0 1px 3px #0000001a,0 1px 2px #0000000f;--shadow-md:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;--radius:10px;--radius-sm:6px;--sans:system-ui,"Segoe UI",Roboto,sans-serif;--heading:system-ui,"Segoe UI",Roboto,sans-serif;--mono:ui-monospace,Consolas,monospace;font:15px/1.6 var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#94a3b8;--text-h:#f1f5f9;--bg:#0f172a;--surface:#1e293b;--border:#334155;--border-hover:#475569;--accent:#818cf8;--accent-light:#a5b4fc;--accent-bg:#818cf81f;--accent-border:#818cf859;--danger:#f87171;--danger-bg:#f871711f;--success:#4ade80;--warning:#fbbf24;--priority-high:#f87171;--priority-high-bg:#f8717126;--priority-medium:#fbbf24;--priority-medium-bg:#fbbf2426;--priority-low:#4ade80;--priority-low-bg:#4ade8026;--overdue:#f87171;--overdue-bg:#f8717114;--shadow-sm:0 1px 2px #0003;--shadow:0 1px 3px #0000004d,0 1px 2px #0003;--shadow-md:0 4px 6px -1px #0000004d,0 2px 4px -1px #0003}}*,:before,:after{box-sizing:border-box}body{margin:0}#root{flex-direction:column;width:100%;max-width:640px;min-height:100svh;margin:0 auto;padding:0 16px;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:600}p{margin:0}button{cursor:pointer;font-family:inherit;font-size:inherit}input,select{font-family:inherit;font-size:inherit}.app{flex-direction:column;min-height:100svh;padding-bottom:32px;display:flex}.app-header{text-align:center;padding:48px 0 24px}.app-header h1{letter-spacing:-1.5px;background:linear-gradient(135deg,var(--accent),var(--accent-light));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin:0;font-size:48px;font-weight:700}.app-subtitle{color:var(--text);margin-top:8px;font-size:15px}.app-main{flex-direction:column;flex:1;gap:16px;display:flex}.app-footer{text-align:center;color:var(--text);opacity:.7;padding:32px 0 0;font-size:13px}.todo-input{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:16px}.todo-input-main{gap:8px;display:flex}.todo-input-title{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text-h);outline:none;flex:1;padding:10px 14px;font-size:15px;transition:border-color .2s}.todo-input-title::placeholder{color:var(--text);opacity:.6}.todo-input-title:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}.todo-input-add{background:var(--accent);color:#fff;border-radius:var(--radius-sm);border:none;padding:10px 20px;font-size:14px;font-weight:600;transition:opacity .2s,transform .1s}.todo-input-add:hover:not(:disabled){opacity:.9}.todo-input-add:active:not(:disabled){transform:scale(.97)}.todo-input-add:disabled{opacity:.4;cursor:not-allowed}.todo-input-options{gap:12px;margin-top:10px;display:flex}.todo-input-priority,.todo-input-date{align-items:center;gap:6px;display:flex}:is(.todo-input-priority,.todo-input-date) label{color:var(--text);white-space:nowrap;font-size:13px}:is(.todo-input-priority,.todo-input-date) select,:is(.todo-input-priority,.todo-input-date) input[type=date]{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text-h);outline:none;padding:5px 8px;font-size:13px}:is(:is(.todo-input-priority,.todo-input-date) select,:is(.todo-input-priority,.todo-input-date) input[type=date]):focus{border-color:var(--accent)}.filter-bar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:12px 16px}.filter-bar-top{justify-content:space-between;align-items:center;gap:12px;display:flex}.filter-tabs{background:var(--bg);border-radius:var(--radius-sm);gap:2px;padding:2px;display:flex}.filter-tab{color:var(--text);background:0 0;border:none;border-radius:4px;padding:6px 14px;font-size:13px;font-weight:500;transition:all .2s}.filter-tab:hover{color:var(--text-h)}.filter-tab-active{background:var(--surface);color:var(--accent);box-shadow:var(--shadow-sm)}.filter-count{color:var(--text);white-space:nowrap;font-size:13px}.filter-bar-bottom{align-items:center;gap:8px;margin-top:10px;display:flex}.search-wrapper{flex:1;position:relative}.search-icon{color:var(--text);opacity:.5;pointer-events:none;position:absolute;top:50%;left:10px;transform:translateY(-50%)}.search-input{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);width:100%;color:var(--text-h);outline:none;padding:7px 30px 7px 32px;font-size:13px;transition:border-color .2s}.search-input::placeholder{color:var(--text);opacity:.6}.search-input:focus{border-color:var(--accent)}.search-clear{color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:2px 6px;font-size:13px;position:absolute;top:50%;right:6px;transform:translateY(-50%)}.search-clear:hover{color:var(--text-h);background:var(--bg)}.btn-clear-completed{border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);white-space:nowrap;background:0 0;padding:6px 12px;font-size:12px;transition:all .2s}.btn-clear-completed:hover{border-color:var(--danger);color:var(--danger);background:var(--danger-bg)}.todo-list{flex-direction:column;gap:6px;display:flex}.todo-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);align-items:center;gap:10px;padding:12px 14px;transition:border-color .2s,box-shadow .2s;display:flex}.todo-item:hover{border-color:var(--border-hover);box-shadow:var(--shadow)}.todo-item-editing{border-color:var(--accent-border)}.todo-completed .todo-title{opacity:.5;text-decoration:line-through}.todo-overdue{background:var(--overdue-bg)}.drag-handle{color:var(--text);opacity:.3;cursor:grab;touch-action:none;background:0 0;border:none;border-radius:4px;flex-shrink:0;align-items:center;padding:4px 2px;transition:opacity .2s;display:flex}.drag-handle:hover{opacity:.7}.drag-handle:active{cursor:grabbing}.todo-checkbox-label{flex-shrink:0;align-items:center;display:flex;position:relative}.todo-checkbox{opacity:0;width:0;height:0;position:absolute}.todo-checkmark{border:2px solid var(--border);cursor:pointer;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;transition:all .2s;display:flex}.todo-checkmark:after{content:"";border:2px solid #fff;border-width:0 2px 2px 0;width:6px;height:10px;display:none;transform:rotate(45deg)translate(-1px,-1px)}.todo-checkbox:checked+.todo-checkmark{background:var(--accent);border-color:var(--accent)}.todo-checkbox:checked+.todo-checkmark:after{display:block}.todo-checkbox:focus-visible+.todo-checkmark{box-shadow:0 0 0 3px var(--accent-bg)}.todo-content{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.todo-title{color:var(--text-h);text-overflow:ellipsis;white-space:nowrap;font-size:15px;overflow:hidden}.todo-meta{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.priority-badge{text-transform:uppercase;letter-spacing:.3px;border-radius:100px;padding:1px 8px;font-size:11px;font-weight:600;display:inline-flex}.priority-high{color:var(--priority-high);background:var(--priority-high-bg)}.priority-medium{color:var(--priority-medium);background:var(--priority-medium-bg)}.priority-low{color:var(--priority-low);background:var(--priority-low-bg)}.todo-due{color:var(--text);font-size:12px}.due-overdue{color:var(--overdue);font-weight:600}.todo-actions{opacity:0;flex-shrink:0;gap:4px;transition:opacity .2s;display:flex}.todo-item:hover .todo-actions{opacity:1}.btn-edit,.btn-delete{border-radius:var(--radius-sm);width:30px;height:30px;color:var(--text);background:0 0;border:none;justify-content:center;align-items:center;transition:all .2s;display:flex}.btn-edit:hover{color:var(--accent);background:var(--accent-bg)}.btn-delete:hover{color:var(--danger);background:var(--danger-bg)}.todo-item-edit-form{flex-direction:column;flex:1;gap:8px;display:flex}.todo-edit-title{border:1px solid var(--accent-border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text-h);outline:none;padding:8px 12px;font-size:15px}.todo-edit-title:focus{box-shadow:0 0 0 3px var(--accent-bg)}.todo-edit-options{gap:8px;display:flex}.todo-edit-options select,.todo-edit-options input[type=date]{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text-h);outline:none;padding:5px 8px;font-size:13px}:is(.todo-edit-options select,.todo-edit-options input[type=date]):focus{border-color:var(--accent)}.todo-edit-actions{gap:6px;display:flex}.btn-save{background:var(--accent);color:#fff;border-radius:var(--radius-sm);border:none;padding:6px 14px;font-size:13px;font-weight:600;transition:opacity .2s}.btn-save:hover{opacity:.9}.btn-cancel{border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);background:0 0;padding:6px 14px;font-size:13px;transition:all .2s}.btn-cancel:hover{border-color:var(--border-hover);color:var(--text-h)}.empty-state{text-align:center;flex-direction:column;align-items:center;padding:48px 24px;display:flex}.empty-state-icon{color:var(--text);opacity:.25;margin-bottom:16px}.empty-state-title{margin:0 0 8px;font-size:20px}.empty-state-text{color:var(--text);font-size:14px}@media (width<=480px){.app-header{padding:32px 0 16px}.app-header h1{font-size:36px}.todo-input-options{flex-direction:column;gap:8px}.filter-bar-top{flex-direction:column;align-items:stretch}.filter-count{text-align:center}.filter-bar-bottom{flex-direction:column}.btn-clear-completed{width:100%}.todo-actions{opacity:1}}