.sb-layout {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.sb-tray {
    flex: 0 0 240px;
    max-height: 70vh;
    overflow-y: auto;
    padding: 8px;
    border: 1px dashed var(--mud-palette-lines-default);
    border-radius: 6px;
    background: var(--mud-palette-background-gray);
}

.sb-tray-title {
    font-weight: 600;
    margin-bottom: 6px;
}

.sb-scroll {
    flex: 1 1 auto;
    min-width: 0;
    /* Scrolling inside the board (both ways) is what lets the arena header row stay in view. */
    overflow: auto;
    max-height: 75vh;
}

.sb-board {
    border-collapse: collapse;
    width: 100%;
}

.sb-board th,
.sb-board td {
    border: 1px solid var(--mud-palette-lines-default);
    padding: 4px;
    vertical-align: top;
    min-width: 170px;
}

.sb-board th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--mud-palette-surface);
    text-align: left;
    font-weight: 600;
}

.sb-board .sb-day {
    min-width: 90px;
    width: 90px;
    font-weight: 600;
    white-space: nowrap;
}

.sb-slot {
    border: 1px solid var(--mud-palette-lines-default);
    border-radius: 4px;
    padding: 4px 6px;
    margin-bottom: 4px;
    background: var(--mud-palette-surface);
    cursor: pointer;
}

.sb-slot.sb-open {
    border-style: dashed;
}

.sb-slot.sb-fits,
.sb-key.sb-fits {
    border: 2px solid var(--mud-palette-success);
    background: rgba(var(--mud-palette-success-rgb), 0.12);
}

.sb-slot.sb-conflict,
.sb-key.sb-conflict {
    border: 2px solid var(--mud-palette-warning);
    background: rgba(var(--mud-palette-warning-rgb), 0.12);
}

.sb-slot.sb-swap {
    border: 2px dotted var(--mud-palette-primary);
}

.sb-time {
    font-size: 0.75rem;
    color: var(--mud-palette-text-secondary);
}

.sb-free {
    font-size: 0.8rem;
    color: var(--mud-palette-text-disabled);
}

.sb-game {
    font-size: 0.8rem;
    padding: 3px 6px;
    margin: 2px 0;
    border-radius: 4px;
    background: rgba(var(--mud-palette-primary-rgb), 0.10);
    border: 1px solid rgba(var(--mud-palette-primary-rgb), 0.35);
}

.sb-game.sb-movable {
    cursor: grab;
}

.sb-game.sb-selected {
    background: var(--mud-palette-primary);
    color: var(--mud-palette-primary-text);
}

.sb-game.sb-dim {
    opacity: 0.35;
}

.sb-legend .sb-key {
    display: inline-block;
    padding: 0 6px;
    margin-left: 8px;
    border-radius: 4px;
}

@media (max-width: 960px) {
    .sb-layout {
        flex-direction: column;
    }

    .sb-tray {
        flex-basis: auto;
        width: 100%;
        max-height: 30vh;
    }
}

/* A tinted pill rather than coloured text: readable on both the light and dark palettes. */
.sb-health-warn {
    background: rgba(var(--mud-palette-warning-rgb), 0.22);
    color: var(--mud-palette-text-primary);
    font-weight: 700;
    padding: 0 4px;
    border-radius: 3px;
}

.sb-game.sb-pinned {
    border-left: 4px solid var(--mud-palette-primary);
    font-weight: 600;
}

.sb-pin {
    float: right;
    margin-left: 4px;
    cursor: pointer;
    color: var(--mud-palette-primary);
    line-height: 1;
}

.sb-game:not(.sb-pinned) .sb-pin {
    opacity: 0.45;
}

.sb-pin:hover {
    opacity: 1;
}

/* On a selected (primary-filled) chip the icon takes the chip's text colour so it stays visible. */
.sb-game.sb-selected .sb-pin {
    color: var(--mud-palette-primary-text);
    opacity: 1;
}

.sb-slot:focus-visible,
.sb-game:focus-visible,
.sb-pin:focus-visible {
    outline: 2px solid var(--mud-palette-primary);
    outline-offset: 1px;
}

/* Workspace step bar */
.sb-steps {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 2px;
}

.sb-step {
    flex: 1 1 0;
    min-width: 140px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border: 1px solid var(--mud-palette-lines-default);
    border-radius: 6px;
    background: var(--mud-palette-surface);
    color: var(--mud-palette-text-primary);
    text-align: left;
    cursor: pointer;
    font: inherit;
}

.sb-step:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.sb-step:focus-visible {
    outline: 2px solid var(--mud-palette-primary);
    outline-offset: 2px;
}

.sb-step-active {
    border: 2px solid var(--mud-palette-primary);
    background: rgba(var(--mud-palette-primary-rgb), 0.08);
}

.sb-step-marker {
    flex: 0 0 26px;
    height: 26px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    background: var(--mud-palette-background-gray);
}

.sb-step-done .sb-step-marker {
    color: var(--mud-palette-success);
}

.sb-step-attention .sb-step-marker {
    color: var(--mud-palette-warning);
}

.sb-step-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.sb-step-title {
    font-weight: 600;
    white-space: nowrap;
}

.sb-step-status {
    font-size: 0.75rem;
    color: var(--mud-palette-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* A placed game that breaks a rule where it sits (hover shows which). */
.sb-game.sb-breaks {
    border: 2px solid var(--mud-palette-warning);
    background: rgba(var(--mud-palette-warning-rgb), 0.14);
}

/* Bookings calendar: the same board, slots coloured by status and selectable */
.bk-board th,
.bk-board td {
    min-width: 120px;
}

.bk-board .bk-pick {
    cursor: pointer;
}

.bk-board .bk-pick:hover {
    color: var(--mud-palette-primary);
}

.bk-slot,
.bk-key {
    border: 1px solid var(--mud-palette-lines-default);
    border-left-width: 4px;
    border-radius: 4px;
    background: var(--mud-palette-surface);
}

.bk-slot {
    padding: 3px 6px;
    margin-bottom: 3px;
    font-size: 0.8rem;
    cursor: pointer;
    user-select: none;
}

.bk-slot .bk-line {
    display: flex;
    justify-content: space-between;
    gap: 6px;
}

.bk-slot .bk-price {
    color: var(--mud-palette-text-secondary);
}

.bk-key {
    display: inline-block;
    padding: 0 8px;
    margin: 0 8px 4px 0;
    font-size: 0.75rem;
}

.bk-available {
    border-left-color: var(--mud-palette-success);
}

.bk-part {
    border-left-color: var(--mud-palette-warning);
    background: rgba(var(--mud-palette-warning-rgb), 0.10);
}

.bk-booked {
    border-left-color: var(--mud-palette-info);
    background: rgba(var(--mud-palette-info-rgb), 0.14);
}

.bk-blocked {
    border-left-color: var(--mud-palette-text-disabled);
    color: var(--mud-palette-text-secondary);
    background: repeating-linear-gradient(45deg, transparent, transparent 6px, rgba(128, 128, 128, 0.15) 6px, rgba(128, 128, 128, 0.15) 12px);
}

.bk-hidden {
    border-style: dashed;
    opacity: 0.7;
}

.bk-noprice .bk-price {
    color: var(--mud-palette-error);
    font-weight: 600;
}

.bk-slot.bk-selected {
    outline: 2px solid var(--mud-palette-primary);
    outline-offset: 1px;
}

.bk-slot:focus-visible {
    outline: 2px solid var(--mud-palette-primary);
}

.bk-actions {
    position: sticky;
    top: 0;
    z-index: 3;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 8px;
    margin-bottom: 8px;
    border: 1px solid var(--mud-palette-primary);
    border-radius: 6px;
    background: var(--mud-palette-surface);
}