body{font-family:Arial,sans-serif;margin:0;padding:20px}.kanban-board{display:flex;gap:20px}.column{flex:1;border:1px solid #ccc;border-radius:5px;padding:10px;min-height:200px}.task-card{background:#fff;border:1px solid #ddd;border-radius:5px;padding:10px;margin-bottom:10px;cursor:move}.task-card:hover{background:#f9f9f9}.task-card input,.task-card textarea{width:100%;margin-bottom:10px}.task-input{margin-bottom:20px}.task-input label{display:block;margin-bottom:5px;font-weight:700}.task-input input,.task-input textarea{width:100%;margin-bottom:10px;padding:8px;border:1px solid #ccc;border-radius:4px}.task-input button{padding:8px 16px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer}.task-input button:hover{background-color:#0056b3}.error{color:red;margin-top:5px}