html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    background-image: linear-gradient(to top, #09203f 0%, #537895 100%);
    font-family: system-ui, sans-serif;
}

main {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    box-sizing: border-box;
}

kanban-board {
    flex-grow: 1;
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
}