@keyframes celebrate{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.checklist-item,.checklist-item input[type=checkbox]{cursor:pointer;transition:all .3s ease;position:relative}.checklist-item{margin-bottom:1.25rem;padding:1.75rem;border:1px solid #e9ecef;border-radius:1rem;display:flex;align-items:flex-start;background:#fff;box-shadow:0 2px 4px rgba(0,0,0,.04)}.checklist-item:hover{transform:translateY(-3px);box-shadow:0 5px 15px rgba(0,0,0,.08);border-color:#198754}.checklist-item.completed{background-color:#f8fff9;border-color:#198754}.checklist-item.completed .content{text-decoration:line-through;opacity:.7}.checklist-item input[type=checkbox]{width:1.5rem;height:1.5rem;appearance:none;-webkit-appearance:none;border:2px solid #6c757d;border-radius:.25rem;background-color:#fff;margin-right:1rem;flex-shrink:0}.checklist-item input[type=checkbox]:checked{background-color:#198754;border-color:#198754;transform:scale(1.1)}.checklist-item input[type=checkbox]:checked::after{content:"✓";position:absolute;color:#fff;font-size:1rem;font-weight:700;left:50%;top:50%;transform:translate(-50%,-50%)}.checklist-item input[type=checkbox]:hover{border-color:#198754;box-shadow:0 0 0 3px rgba(25,135,84,.2)}.checklist-item .content{flex:1}.info-icon{display:inline-flex;align-items:center;margin-left:.75rem;color:#6c757d;cursor:help;position:relative}.info-icon:hover .tooltip{visibility:visible;opacity:1;transform:translateY(-50%) translateX(10px);pointer-events:auto}.tooltip{visibility:hidden;opacity:0;position:absolute;background:rgba(51,51,51,.95);color:#fff;padding:.75rem 1rem;border-radius:.5rem;font-size:.9rem;width:280px;left:100%;top:50%;transform:translateY(-50%) translateX(0);margin-left:10px;transition:all .2s ease-in-out;z-index:1000;pointer-events:none;white-space:normal;word-wrap:break-word;box-shadow:0 4px 6px rgba(0,0,0,.1);line-height:1.4}.tooltip::before{content:"";position:absolute;left:-8px;top:50%;transform:translateY(-50%);border-width:8px;border-style:solid;border-color:transparent rgba(51,51,51,.95) transparent transparent}.btn:disabled{cursor:not-allowed;opacity:.6}.celebration{animation:celebrate .5s ease-in-out}.checklist-item label{display:block;cursor:pointer;margin:0;line-height:1.4;font-weight:500}.info-icon i{font-size:1.1rem;color:#495057}@media (max-width:768px){.tooltip,.tooltip::before{left:50%;transform:translateX(-50%)}.tooltip{width:240px;top:100%;margin-left:0;margin-top:10px}.tooltip::before{top:-8px;border-color:transparent transparent rgba(51,51,51,.95)}.info-icon:hover .tooltip{transform:translateX(-50%) translateY(5px)}}