body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#f0f2f5;color:#1d2129;margin:0;padding:1rem}.app-container{max-width:800px;margin:2rem auto;padding:2rem;background:#fff;border-radius:12px;box-shadow:0 6px 20px #00000012}header{text-align:center;border-bottom:1px solid #e8e8e8;padding-bottom:1.5rem;margin-bottom:2rem}header h1{color:#0d6efd;font-size:2.5rem}.module{padding:1.5rem;border-radius:8px;margin-bottom:2rem}.add-task-form{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2rem}.task-input{flex-grow:1;padding:.8rem 1rem;border:1px solid #ccc;border-radius:6px;font-size:1rem}.date-input{padding:.8rem 1rem;border:1px solid #ccc;border-radius:6px;font-size:1rem}.add-task-form button{padding:.8rem 1.5rem;border:none;background:linear-gradient(to right,#0d6efd,#0558ca);color:#fff;border-radius:6px;cursor:pointer;font-weight:700;font-size:1rem;transition:background-color .3s}.add-task-form button:hover{background-color:#0b5ed7}.todo-list{list-style:none;padding:0}.todo-list li{display:flex;justify-content:space-between;align-items:center;padding:1rem;border-bottom:1px solid #f0f0f0;transition:background-color .2s}.todo-list li:hover{background-color:#fafafa}.todo-list li.completed .task-title{text-decoration:line-through;color:#888}.task-content{display:flex;align-items:center;gap:1rem;flex-grow:1}input[type=checkbox]{width:20px;height:20px;cursor:pointer}.task-title{font-size:1.1rem}.due-date{font-size:.85rem;color:#555;background:#e9ecef;padding:.3rem .6rem;border-radius:12px}.delete-btn{background:#dc3545;color:#fff;border:none;padding:.5rem .8rem;border-radius:6px;cursor:pointer;opacity:0;transition:opacity .3s,transform .2s;transform:scale(.9)}.todo-list li:hover .delete-btn{opacity:1;transform:scale(1)}.store-group{margin-bottom:2rem}.store-name{font-size:1.5rem;color:#0558ca;border-bottom:2px solid #e9ecef;padding-bottom:.5rem;margin-bottom:1rem}