.category-pane {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-height: 0;
    height: 100%;
    overflow: auto;
    outline: none;
}

.category-pane:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
    border-radius: var(--radius-md);
}

.category-pane-loading,
.category-pane-empty {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    background: color-mix(in srgb, var(--color-surface) 88%, var(--color-border) 12%);
}

.category-pane-search-input {
    width: 100%;
    min-height: 34px;
    padding: 0 var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    background: var(--color-surface);
    font: inherit;
}

.category-pane-search-input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
}

.category-pane-alpha-index {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.category-pane-alpha-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    min-height: 24px;
    padding: 0 6px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-xs);
    font-weight: 600;
    line-height: 1;
    background: color-mix(in srgb, var(--color-surface) 90%, var(--color-border) 10%);
}

.category-pane-alpha-link:hover {
    color: var(--color-text);
    background: var(--color-surface-hover);
}

.category-pane-alpha-link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
}

.category-pane-play-all-entry {
    display: flex;
    align-items: center;
    min-height: 36px;
    padding: 0 var(--spacing-sm);
    border: 1px dashed color-mix(in srgb, var(--color-primary) 45%, var(--color-border));
    border-radius: var(--radius-md);
    color: var(--color-primary);
    background: color-mix(in srgb, var(--color-primary) 10%, var(--color-surface));
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.category-pane-play-all-entry:hover {
    background: color-mix(in srgb, var(--color-primary) 16%, var(--color-surface));
}

.category-pane-play-all-entry:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
}

.category-pane-item {
    display: flex;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.category-pane-item:hover {
    background: var(--color-surface-hover);
}

.category-pane-item-selected {
    background: color-mix(in srgb, var(--color-primary) 18%, var(--color-surface));
    border-color: color-mix(in srgb, var(--color-primary) 45%, var(--color-border));
}

.category-pane-item-label {
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.category-pane-item-meta {
    font-size: var(--font-size-xs);
    line-height: 1.25;
}