:root{--primary-color: #4f46e5;--primary-hover: #4338ca;--bg-color: #f3f4f6;--card-bg: #ffffff;--text-main: #1f2937;--text-muted: #9ca3af;--border-color: #e5e7eb;--danger-color: #ef4444;--danger-hover: #dc2626}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-main);max-width:480px;margin:40px auto;padding:0 16px}.app-card{background:var(--card-bg);padding:24px;border-radius:16px;box-shadow:0 10px 25px -5px #0000000d,0 8px 10px -6px #00000003}h1{font-size:1.5rem;font-weight:700;margin-top:0;margin-bottom:20px;text-align:center}.input-group{display:flex;gap:8px;margin-bottom:16px}input[type=text]{flex:1;padding:10px 14px;border:1px solid var(--border-color);border-radius:8px;font-size:14px;outline:none;transition:border-color .2s}input[type=text]:focus{border-color:var(--primary-color)}#priority-select{padding:8px 10px;border:1px solid var(--border-color);border-radius:8px;outline:none;font-size:14px;background-color:#fff;cursor:pointer}button{padding:10px 16px;border:none;border-radius:8px;background-color:var(--primary-color);color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .2s,transform .1s}button:hover{background-color:var(--primary-hover)}button:active{transform:scale(.98)}.filter-group{display:flex;gap:8px;margin-bottom:20px;border-bottom:1px solid var(--border-color);padding-bottom:12px}.filter-group button{background:transparent;color:var(--text-muted);padding:6px 12px}.filter-group button:hover{color:var(--text-main);background:#f9fafb}.filter-group button.active{color:var(--primary-color);font-weight:700;border-bottom:2px solid var(--primary-color);border-radius:0}ul{list-style:none;padding:0;margin:0}li{display:flex;align-items:center;justify-content:space-between;padding:12px;border-radius:8px;border:1px solid var(--border-color);margin-bottom:8px;background:#fff;transition:all .2s;animation:fadeIn .25s cubic-bezier(.16,1,.3,1) forwards;overflow:hidden}li:hover{border-color:#d1d5db}li span{cursor:pointer;flex:1;font-size:15px}li span.completed{text-decoration:line-through;color:var(--text-muted)}.delete-btn{background-color:transparent;color:var(--danger-color);padding:4px 8px;font-size:12px}.delete-btn:hover{background-color:#fef2f2;color:var(--danger-hover)}.priority-badge{font-size:11px;font-weight:700;padding:2px 8px;border-radius:12px;margin-left:8px;display:inline-block;vertical-align:middle}.priority-high{background-color:#fee2e2;color:#dc2626}.priority-medium{background-color:#fef3c7;color:#d97706}.priority-low{background-color:#e0f2fe;color:#0284c7}.backup-group{display:flex;gap:8px;margin-top:16px;padding-top:16px;border-top:1px dashed var(--border-color)}.backup-group button,.file-label{flex:1;text-align:center;background-color:#f3f4f6;color:var(--text-main);border:1px solid var(--border-color);padding:8px 12px;font-size:13px;border-radius:8px;cursor:pointer;transition:all .2s}.backup-group button:hover,.file-label:hover{background-color:#e5e7eb}@keyframes fadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeOut{0%{opacity:1;transform:translate(0);max-height:50px}to{opacity:0;transform:translate(30px);max-height:0;margin-bottom:0;padding-top:0;padding-bottom:0}}li.removing{animation:fadeOut .25s cubic-bezier(.16,1,.3,1) forwards}.edit-input{flex:1;padding:6px 10px;font-size:14px;border:1px solid var(--primary-color);border-radius:6px;outline:none;margin-right:8px}.pomodoro-card{background:#f8fafc;border:1px solid var(--border-color);border-radius:12px;padding:16px;text-align:center;margin-bottom:20px}.timer-display{font-size:2.2rem;font-weight:800;color:var(--primary-color);font-family:monospace}.timer-status{font-size:.85rem;color:var(--text-muted);margin-bottom:12px}.timer-controls{display:flex;justify-content:center;gap:8px}.timer-controls button:disabled{opacity:.5;cursor:not-allowed}li.active-task{border-left:4px solid var(--primary-color);background-color:#f0f9ff}.task-timer-btn{background:transparent;color:#64748b;padding:4px 6px;font-size:12px;margin-right:4px}.task-timer-btn:hover{background:#e2e8f0}