:root{--bg-primary: #070913;--bg-card: rgba(15, 22, 42, .7);--bg-glass: rgba(255, 255, 255, .025);--border-glass: rgba(255, 255, 255, .07);--border-glass-focus: rgba(139, 92, 246, .45);--accent-purple: #8b5cf6;--accent-blue: #3b82f6;--accent-indigo: #6366f1;--accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--color-success: #10b981;--color-warning: #f59e0b;--color-danger: #ef4444;--shadow-main: 0 8px 32px 0 rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(139, 92, 246, .12);--shadow-glow-success: 0 0 20px rgba(16, 185, 129, .12);--font-family: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;--border-radius-lg: 12px;--border-radius-md: 8px;--border-radius-sm: 6px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1)}body.light-theme{--bg-primary: #f1f3f7;--bg-card: rgba(255, 255, 255, .85);--bg-glass: rgba(139, 92, 246, .035);--border-glass: rgba(15, 23, 42, .08);--border-glass-focus: rgba(139, 92, 246, .5);--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--shadow-main: 0 8px 32px 0 rgba(148, 163, 184, .15);--shadow-glow: 0 0 20px rgba(139, 92, 246, .08)}*{margin:0;padding:0;box-sizing:border-box}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-family);min-height:100vh;display:flex;justify-content:center;align-items:flex-start;padding:20px 10px;overflow-x:hidden;position:relative;transition:background-color var(--transition-normal),color var(--transition-normal)}.glow-orb{position:absolute;border-radius:50%;filter:blur(140px);z-index:-1;opacity:.45;pointer-events:none;mix-blend-mode:screen;transition:opacity var(--transition-normal)}body.light-theme .glow-orb{opacity:.15;mix-blend-mode:normal;filter:blur(100px)}.orb-1{width:350px;height:350px;background:radial-gradient(circle,var(--accent-purple) 0%,transparent 70%);top:-50px;left:-100px}.orb-2{width:400px;height:400px;background:radial-gradient(circle,var(--accent-blue) 0%,transparent 70%);bottom:-100px;right:-100px}.orb-3{width:250px;height:250px;background:radial-gradient(circle,var(--accent-indigo) 0%,transparent 70%);top:35%;left:45%}.app-container{width:100%;max-width:720px;display:flex;flex-direction:column;gap:12px;animation:fadeIn .4s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.app-header{text-align:left;padding:4px 6px}.header-main{display:flex;justify-content:space-between;align-items:center;margin-bottom:2px}.brand{display:flex;align-items:center;gap:8px}.brand-icon{width:24px;height:24px;color:var(--accent-purple);filter:drop-shadow(0 0 6px rgba(139,92,246,.4))}.brand h1{font-size:1.45rem;font-weight:700;letter-spacing:-.3px;background:linear-gradient(to right,var(--text-primary),var(--accent-purple),var(--accent-blue));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.header-controls{display:flex;gap:6px}.subtitle{font-size:.8rem;color:var(--text-secondary);font-weight:400}.controls-card,.todo-main{background:var(--bg-card);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-glass);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-main);transition:border-color var(--transition-normal),box-shadow var(--transition-normal),background-color var(--transition-normal)}.controls-card:hover,.todo-main:hover{border-color:#ffffff1a}body.light-theme .controls-card:hover,body.light-theme .todo-main:hover{border-color:#0000001f}.controls-card{padding:10px 14px;display:flex;flex-direction:row;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.search-box{display:flex;align-items:center;background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--border-radius-md);padding:0 10px;height:34px;flex-grow:1;max-width:280px;transition:all var(--transition-fast)}.search-box:focus-within{border-color:var(--border-glass-focus);box-shadow:var(--shadow-glow);background:#ffffff0a}body.light-theme .search-box:focus-within{background:#ffffffe6}.search-icon{width:15px;height:15px;color:var(--text-secondary);margin-right:6px}.search-box input{background:transparent;border:none;outline:none;color:var(--text-primary);font-family:var(--font-family);font-size:.85rem;width:100%}.search-box input::placeholder{color:var(--text-muted)}.controls-actions{display:flex;align-items:center;gap:10px}.filter-tabs{display:flex;background:var(--bg-glass);padding:2px;border-radius:var(--border-radius-md);border:1px solid var(--border-glass)}.filter-btn{background:transparent;border:none;outline:none;padding:5px 12px;color:var(--text-secondary);font-family:var(--font-family);font-size:.8rem;font-weight:500;cursor:pointer;border-radius:var(--border-radius-sm);transition:all var(--transition-fast)}.filter-btn:hover{color:var(--text-primary)}.filter-btn.active{background:var(--accent-gradient);color:#fff;box-shadow:var(--shadow-glow)}.util-btns{display:flex;gap:4px}.icon-btn{background:var(--bg-glass);border:1px solid var(--border-glass);color:var(--text-secondary);width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--border-radius-md);cursor:pointer;transition:all var(--transition-fast);position:relative}.icon-btn svg{width:15px;height:15px}.icon-btn:hover{border-color:#ffffff26;color:var(--text-primary);background:#ffffff0d}body.light-theme .icon-btn:hover{border-color:#00000026;background:#00000008}.icon-btn.text-danger:hover{color:var(--color-danger);border-color:#ef444433;background:#ef444414}.tooltip:after{content:attr(data-tooltip);position:absolute;bottom:125%;left:50%;transform:translate(-50%) translateY(4px);background:#0f172af2;color:#fff;padding:4px 8px;font-size:.7rem;font-weight:500;border-radius:var(--border-radius-sm);border:1px solid var(--border-glass);white-space:nowrap;opacity:0;pointer-events:none;transition:all var(--transition-fast);z-index:100}.tooltip:hover:after{opacity:1;transform:translate(-50%) translateY(0)}.todo-main{padding:14px}.add-todo-form{display:flex;gap:8px;margin-bottom:14px}.add-todo-form input{flex-grow:1;height:38px;background:#ffffff03;border:1px solid var(--border-glass);border-radius:var(--border-radius-md);padding:0 12px;color:var(--text-primary);font-family:var(--font-family);font-size:.88rem;transition:all var(--transition-fast)}body.light-theme .add-todo-form input{background:#ffffff80}.add-todo-form input:focus{outline:none;border-color:var(--border-glass-focus);box-shadow:var(--shadow-glow);background:#ffffff08}body.light-theme .add-todo-form input:focus{background:#ffffffe6}.submit-btn{width:38px;height:38px;background:var(--accent-gradient);border:none;outline:none;border-radius:var(--border-radius-md);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-glow);transition:all var(--transition-fast)}.submit-btn:hover{transform:translateY(-1px)}.submit-btn svg{width:16px;height:16px}.todo-tree-wrapper{position:relative;min-height:150px}.todo-tree{list-style:none;display:flex;flex-direction:column;gap:6px}.todo-item{display:flex;flex-direction:column}.todo-item-row{display:flex;align-items:center;padding:6px 10px;background:#ffffff04;border:1px solid var(--border-glass);border-radius:var(--border-radius-md);gap:8px;transition:background-color var(--transition-fast),border-color var(--transition-fast),box-shadow var(--transition-fast);position:relative}body.light-theme .todo-item-row{background:#fff6}.todo-item-row:hover{background:#ffffff08;border-color:#ffffff1f}body.light-theme .todo-item-row:hover{background:#ffffffe6;border-color:#0000001f;box-shadow:0 2px 8px #00000008}.todo-item-row.is-completed{background:#10b98105;border-color:#10b9811f}body.light-theme .todo-item-row.is-completed{background:#10b98105;border-color:#10b98126}.todo-item-row.is-completed:hover{background:#10b9810a;border-color:#10b98138}.expand-toggle{width:20px;height:20px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-secondary);border:none;background:transparent;border-radius:50%;transition:all var(--transition-fast)}.expand-toggle:hover{background:#ffffff0f;color:var(--text-primary)}body.light-theme .expand-toggle:hover{background:#0000000d}.expand-toggle.is-collapsed svg{transform:rotate(-90deg)}.expand-toggle svg{width:11px;height:11px;transition:transform var(--transition-fast)}.expand-spacer{width:20px;height:20px}.checkbox-container{display:block;position:relative;width:17px;height:17px;cursor:pointer;-webkit-user-select:none;user-select:none}.checkbox-container input{position:absolute;opacity:0;cursor:pointer;height:0;width:0}.checkmark{position:absolute;top:0;left:0;height:17px;width:17px;background-color:#ffffff05;border:1.5px solid var(--text-muted);border-radius:4px;transition:all var(--transition-fast)}body.light-theme .checkmark{background-color:#00000005}.checkbox-container:hover input~.checkmark{border-color:var(--accent-purple);background-color:#ffffff0d}.checkbox-container input:checked~.checkmark{background:linear-gradient(135deg,var(--color-success) 0%,#059669 100%);border-color:var(--color-success);box-shadow:0 0 6px #10b9814d}.checkmark:after{content:"";position:absolute;display:none;left:5px;top:1.5px;width:4px;height:8px;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg)}.checkbox-container input:checked~.checkmark:after{display:block}.todo-item-content{flex-grow:1;display:flex;flex-direction:column;gap:2px;overflow:hidden}.todo-text-container{display:flex;align-items:center;gap:6px;flex-wrap:wrap;min-width:0}.todo-text{font-size:.88rem;color:var(--text-primary);word-break:break-word;font-weight:500;transition:color var(--transition-fast)}.is-completed .todo-text{color:var(--text-muted);text-decoration:line-through;text-decoration-color:var(--text-muted)}.todo-edit-input{background:#ffffff0a;border:1px solid var(--border-glass-focus);border-radius:var(--border-radius-sm);color:var(--text-primary);font-family:var(--font-family);font-size:.88rem;padding:2px 6px;width:100%;outline:none}body.light-theme .todo-edit-input{background:#fff}.progress-badge{background:var(--bg-glass);border:1px solid var(--border-glass);color:var(--text-secondary);font-size:.68rem;padding:1px 4px;border-radius:var(--border-radius-sm);font-weight:600}.is-completed .progress-badge{background:#10b98114;color:var(--color-success);border-color:#10b98126}.warning-badge{display:inline-flex;align-items:center;gap:3px;background:#f59e0b0f;border:1px solid rgba(245,158,11,.15);color:var(--color-warning);font-size:.66rem;padding:1px 4px;border-radius:var(--border-radius-sm);font-weight:500}.todo-progress-container{width:100%;max-width:180px;height:3px;background:#ffffff08;border-radius:2px;overflow:hidden}body.light-theme .todo-progress-container{background:#0000000d}.todo-progressbar{height:100%;background:var(--accent-gradient);width:0%;transition:width .3s ease-out}.is-completed .todo-progressbar{background:linear-gradient(90deg,var(--color-success),#34d399)}.todo-item-actions{display:flex;gap:4px;opacity:0;transform:translate(4px);transition:all var(--transition-fast)}.todo-item-row:hover .todo-item-actions,.todo-item-row:focus-within .todo-item-actions{opacity:1;transform:translate(0)}.action-btn{background:transparent;border:none;outline:none;color:var(--text-secondary);width:24px;height:24px;border-radius:var(--border-radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast)}.action-btn svg{width:12px;height:12px}.action-btn:hover{background:#ffffff0d;color:var(--text-primary)}body.light-theme .action-btn:hover{background:#0000000d}.action-btn.btn-add:hover{color:var(--accent-purple);background:#8b5cf614}.action-btn.btn-delete:hover{color:var(--color-danger);background:#ef444414}.todo-item-children{list-style:none;margin-left:9px;padding-left:14px;border-left:1px dashed var(--border-glass);display:flex;flex-direction:column;gap:4px;margin-top:4px}.todo-item-children.is-collapsed{display:none}.subtask-add-container{padding-left:28px;margin-top:4px}.subtask-add-form{display:flex;gap:6px}.subtask-add-form input{flex-grow:1;height:30px;background:#ffffff03;border:1px solid var(--border-glass);border-radius:var(--border-radius-sm);padding:0 10px;color:var(--text-primary);font-family:var(--font-family);font-size:.8rem;outline:none}body.light-theme .subtask-add-form input{background:#fffc}.subtask-add-form input:focus{border-color:var(--border-glass-focus)}.subtask-add-btn{height:30px;padding:0 10px;background:var(--accent-gradient);border:none;outline:none;border-radius:var(--border-radius-sm);color:#fff;font-size:.75rem;font-weight:600;cursor:pointer}.subtask-cancel-btn{height:30px;padding:0 10px;background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--border-radius-sm);color:var(--text-secondary);font-size:.75rem;font-weight:500;cursor:pointer}.drawer-backdrop{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#0006;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:998;opacity:0;pointer-events:none;transition:opacity .3s ease}.drawer-backdrop.is-visible{opacity:1;pointer-events:auto}.stats-drawer{position:fixed;top:0;right:0;width:300px;height:100vh;background:var(--bg-card);border-left:1px solid var(--border-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:999;transform:translate(100%);transition:transform .3s cubic-bezier(.16,1,.3,1),background-color var(--transition-normal);box-shadow:var(--shadow-main);display:flex;flex-direction:column}.stats-drawer.is-visible{transform:translate(0)}.drawer-header{padding:14px 18px;border-bottom:1px solid var(--border-glass);display:flex;justify-content:space-between;align-items:center}.drawer-header h3{font-size:1.1rem;font-weight:700;color:var(--text-primary)}.btn-close-drawer{width:28px;height:28px;border-radius:var(--border-radius-sm)}.drawer-content{padding:20px 18px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;flex-grow:1}.drawer-stat-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:18px;background:var(--bg-glass);border-radius:var(--border-radius-lg);border:1px solid var(--border-glass)}.drawer-stat-percentage{font-size:1.8rem;font-weight:800;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1}.drawer-stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.drawer-stat-item{padding:10px;background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--border-radius-md);display:flex;flex-direction:column;gap:2px}.drawer-stat-item .stat-value{font-size:1.25rem;font-weight:700;color:var(--text-primary)}.empty-state{display:none;flex-direction:column;align-items:center;justify-content:center;padding:40px 10px;text-align:center;color:var(--text-secondary)}.empty-icon{width:44px;height:44px;color:var(--text-muted);margin-bottom:10px}.empty-title{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:4px}.empty-text{font-size:.8rem;max-width:220px}.toast-container{position:fixed;bottom:16px;right:16px;display:flex;flex-direction:column;gap:8px;z-index:1000}.toast{background:#0f172af2;border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;padding:10px 16px;border-radius:var(--border-radius-md);box-shadow:var(--shadow-main);display:flex;align-items:center;gap:8px;font-size:.8rem;font-weight:500;min-width:220px;animation:toastIn .2s cubic-bezier(.16,1,.3,1),toastOut .2s cubic-bezier(.16,1,.3,1) 3s forwards;position:relative;overflow:hidden}body.light-theme .toast{background:#fffffff2;color:#0f172a;border-color:#0000001a}.toast:before{content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--accent-gradient);animation:toastProgress 3s linear forwards}.toast-success:before{background:var(--color-success)}.toast-danger:before{background:var(--color-danger)}@keyframes toastIn{0%{transform:translateY(50px) scale(.95);opacity:0}to{transform:translateY(0) scale(1);opacity:1}}@keyframes toastOut{0%{transform:translateY(0) scale(1);opacity:1}to{transform:translateY(10px) scale(.95);opacity:0}}@keyframes toastProgress{0%{width:100%}to{width:0%}}.theme-icon-dark,.theme-icon-light{transition:transform .3s ease}.util-hidden{display:none!important}