.kanban-board {
    display: flex;
    justify-content: space-between;
    padding: 20px;
}

.kanban-column {
    background-color: #f2f2f2;
    width: 30%;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
}

.kanban-column h2 {
    margin-bottom: 20px;
}

.kanban-card {
    background-color: white;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    border-width: 4px;
    border-style: solid;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
}

.buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

button {
    padding: 5px;
    border: none;
    background-color: #ddd;
    cursor: pointer;
}

button:disabled {
    background-color: #aaa;
    cursor: not-allowed;
}