.ui-split {
    --splitter-size: 8px;
    --splitter-bg: var(--ui-border);
    --splitter-bg-hover: var(--ui-border-strong);
    --splitter-handle: var(--ui-text-muted);
    --split-collapse-bg: var(--ui-surface);
    --split-collapse-border: var(--ui-border);

    display: flex;
    min-height: 220px;
    gap: 0;
    padding: 0;
    overflow: hidden;
}

.ui-split.ui-split--horizontal {
    flex-direction: row;
}

.ui-split.ui-split--vertical {
    flex-direction: column;
}

.ui-split > .title {
    position: absolute;
    top: 10px;
    left: 12px;
    right: 12px;
    z-index: 2;
    pointer-events: none;
    background: transparent;
    margin: 0;
    padding-bottom: 8px;
}

.ui-split-pane {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    overflow: auto;
}

.ui-split-divider {
    position: relative;
    flex: 0 0 var(--splitter-size);
    background: var(--splitter-bg);
    transition: background-color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
}

.ui-split--horizontal .ui-split-divider {
    cursor: col-resize;
}

.ui-split--vertical .ui-split-divider {
    cursor: row-resize;
}

.ui-split-divider.is-static {
    cursor: default;
}

.ui-split-divider:hover,
.ui-split-divider.is-dragging {
    background: var(--splitter-bg-hover);
}

.ui-split-divider-handle {
    display: inline-block;
    width: 4px;
    height: 40px;
    border-radius: 999px;
    background: var(--splitter-handle);
    opacity: 0.65;
}

.ui-split--vertical .ui-split-divider-handle {
    width: 40px;
    height: 4px;
}

.ui-split-collapse-button {
    position: absolute;
    border: 1px solid var(--split-collapse-border);
    background: var(--split-collapse-bg);
    color: var(--ui-text);
    width: 22px;
    height: 22px;
    border-radius: 999px;
    font-size: 12px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.ui-split--horizontal .ui-split-collapse-button {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.ui-split--vertical .ui-split-collapse-button {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.ui-split-pane.is-collapsed {
    overflow: hidden;
}