/* ========================================
   Column Block Styles
   Prefix: bkbg-column
   ======================================== */

/* CSS Custom Properties */
.bkbg-column {
    --bkbg-col-desktop: 50%;
    --bkbg-col-tablet: 50%;
    --bkbg-col-mobile: 100%;
    --bkbg-col-padding-none: 0;
    --bkbg-col-padding-xs: 8px;
    --bkbg-col-padding-s: 16px;
    --bkbg-col-padding-m: 24px;
    --bkbg-col-padding-l: 32px;
    --bkbg-col-padding-xl: 48px;
    position: relative;
    box-sizing: border-box;
    min-height: 1px;
    min-width: 0;
    overflow: visible;
}

/* Default desktop width */
.bkbg-column {
    flex: 0 0 var(--bkbg-col-desktop);
    max-width: var(--bkbg-col-desktop);
    width: var(--bkbg-col-desktop);
}

/* Column inner container */
.bkbg-column__inner {
    width: 100%;
    min-height: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
}

/* Column Vertical Alignment */
.bkbg-column--valign-top .bkbg-column__inner {
    justify-content: flex-start;
}

.bkbg-column--valign-middle .bkbg-column__inner {
    justify-content: center;
}

.bkbg-column--valign-bottom .bkbg-column__inner {
    justify-content: flex-end;
}

/* Inner Padding Variants */
.bkbg-column--padding-none .bkbg-column__inner {
    padding: var(--bkbg-col-padding-none);
}

.bkbg-column--padding-xs .bkbg-column__inner {
    padding: var(--bkbg-col-padding-xs);
}

.bkbg-column--padding-s .bkbg-column__inner {
    padding: var(--bkbg-col-padding-s);
}

.bkbg-column--padding-m .bkbg-column__inner {
    padding: var(--bkbg-col-padding-m);
}

.bkbg-column--padding-l .bkbg-column__inner {
    padding: var(--bkbg-col-padding-l);
}

.bkbg-column--padding-xl .bkbg-column__inner {
    padding: var(--bkbg-col-padding-xl);
}

/* ========================================
   Responsive Breakpoints
   ======================================== */

/* Tablet: 768px - 1024px */
@media (min-width: 768px) and (max-width: 1024px) {
    .bkbg-column {
        flex-basis: var(--bkbg-col-tablet, var(--bkbg-col-desktop));
        max-width: var(--bkbg-col-tablet, var(--bkbg-col-desktop));
        width: var(--bkbg-col-tablet, var(--bkbg-col-desktop));
    }
}

/* Mobile: < 768px */
@media (max-width: 767px) {
    .bkbg-column {
        flex-basis: var(--bkbg-col-mobile, 100%);
        max-width: var(--bkbg-col-mobile, 100%);
        width: var(--bkbg-col-mobile, 100%);
    }
    
    /* Stack on mobile override */
    .bkbg-row--stack-mobile .bkbg-column {
        flex-basis: 100% !important;
        max-width: 100% !important;
        width: 100% !important;
    }
}

/* ========================================
   Editor-specific Styles
   ======================================== */

/* Column in editor */
.editor-styles-wrapper .bkbg-column {
    min-height: 40px;
    border: 1px dashed transparent;
    border-radius: 3px;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.editor-styles-wrapper .bkbg-column:hover {
    border-color: rgba(59, 130, 246, 0.25);
    background-color: rgba(59, 130, 246, 0.02);
}

.editor-styles-wrapper .bkbg-column.is-selected,
.editor-styles-wrapper .bkbg-column:focus-within {
    border-color: rgba(59, 130, 246, 0.4);
    background-color: rgba(59, 130, 246, 0.03);
}

/* ========================================
   Column Hover Move Controls (Editor)
   ======================================== */

.bkbg-column__move-actions {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -100%);
    display: flex;
    gap: 2px;
    padding: 2px 3px;
    background: rgba(59, 130, 246, 0.04);
    border: 1px dashed rgba(59, 130, 246, 0.35);
    border-radius: 999px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.15s ease, visibility 0.15s ease;
    z-index: 5;
}

.editor-styles-wrapper .bkbg-column:hover .bkbg-column__move-actions,
.editor-styles-wrapper .bkbg-column.is-selected .bkbg-column__move-actions,
.editor-styles-wrapper .bkbg-column:focus-within .bkbg-column__move-actions {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.bkbg-column__move-btn {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 22px !important;
    height: 22px !important;
    min-width: 22px !important;
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
    border-radius: 6px !important;
    color: rgba(59, 130, 246, 0.85) !important;
    opacity: 0.85;
}

.bkbg-column__move-btn:hover:not(:disabled) {
    background: rgba(59, 130, 246, 0.10) !important;
    color: #2563eb !important;
    opacity: 1;
}

.bkbg-column__move-btn:disabled {
    opacity: 0.25 !important;
    cursor: not-allowed !important;
}

.bkbg-column__move-btn svg {
    width: 16px !important;
    height: 16px !important;
    fill: currentColor !important;
}

/* Don't show move controls while resizing the row */
.bkbg-row--is-resizing .bkbg-column__move-actions {
    display: none !important;
}

/* Width label in editor */
.bkbg-column__width-label {
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 9px;
    font-weight: 600;
    color: #64748b;
    background: #f1f5f9;
    padding: 1px 5px;
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.15s ease;
    pointer-events: none;
    z-index: 1;
    white-space: nowrap;
}

.editor-styles-wrapper .bkbg-column:hover .bkbg-column__width-label,
.editor-styles-wrapper .bkbg-column.is-selected .bkbg-column__width-label {
    opacity: 1;
}

/* Ensure inner blocks fill column */
.editor-styles-wrapper .bkbg-column .bkbg-column__inner {
    min-height: 40px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.editor-styles-wrapper .bkbg-column .block-editor-inner-blocks {
    width: 100%;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 100%;
}

.editor-styles-wrapper .bkbg-column .block-editor-block-list__layout {
    width: 100%;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 100%;
}

/* Editor preview: vertical alignment must target block list layout wrappers */
.editor-styles-wrapper .bkbg-column.bkbg-column--valign-top > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout {
    justify-content: flex-start !important;
}

.editor-styles-wrapper .bkbg-column.bkbg-column--valign-middle > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout {
    justify-content: center !important;
}

.editor-styles-wrapper .bkbg-column.bkbg-column--valign-bottom > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout {
    justify-content: flex-end !important;
}

/* Column width controls in inspector */
.bkbg-column-widths-controls {
    margin-top: 8px;
}

.bkbg-column-widths-controls .components-range-control {
    margin-bottom: 16px;
}

/* Column info in inspector */
.bkbg-column-info {
    font-size: 12px;
    color: #64748b;
}

.bkbg-column-info p {
    margin: 4px 0;
}

.bkbg-column-info strong {
    color: #1e293b;
}

/* ========================================
   Block Appender Styling - Context aware
   ======================================== */

.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks .block-editor-inserter {
    width: 100%;
    display: flex;
    justify-content: center;
}

/* Make sure the layout can contain positioned appender */
.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout {
    position: relative;
    min-height: 40px;
}

/* ----------------------------------------
   EMPTY COLUMN: Full drop zone with outline icon
   ---------------------------------------- */

/* When appender is the only child = empty column */
.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child {
    position: relative !important;
    width: 100% !important;
    margin: 0 !important;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

/* Show empty column drop zone only when parent SECTION is hovered/selected */
.editor-styles-wrapper [data-type="blockenberg/section"]:hover .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child,
.editor-styles-wrapper [data-type="blockenberg/section"].is-selected .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child,
.editor-styles-wrapper [data-type="blockenberg/section"]:focus-within .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child {
    opacity: 1;
    pointer-events: auto;
}

/* Empty column drop zone style */
.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child .block-editor-button-block-appender {
    background: transparent !important;
    border: 2px dashed rgba(59, 130, 246, 0.3) !important;
    border-radius: 6px !important;
    width: 100% !important;
    height: auto !important;
    min-height: 60px !important;
    min-width: 100% !important;
    padding: 16px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: none !important;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child .block-editor-button-block-appender:hover {
    background: rgba(59, 130, 246, 0.05) !important;
    border-color: rgba(59, 130, 246, 0.5) !important;
    transform: none;
}

/* Outline plus icon for empty column */
.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child .block-editor-button-block-appender svg {
    fill: none !important;
    stroke: rgba(59, 130, 246, 0.5) !important;
    stroke-width: 2px !important;
    width: 24px !important;
    height: 24px !important;
}

.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child .block-editor-button-block-appender:hover svg {
    stroke: rgba(59, 130, 246, 0.8) !important;
}

/* ----------------------------------------
   COLUMN WITH CONTENT: Hide appender completely
   ---------------------------------------- */

/* When appender is NOT the only child = has content - hide it */
.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:not(:only-child) {
    display: none !important;
}

/* Ensure inner blocks layout is flex column - direct children only */
.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout {
    display: flex;
    flex-direction: column;
    flex: 1;
}

/* ========================================
   Prevent column shrink/grow issues
   ======================================== */

.bkbg-column {
    flex-shrink: 0 !important;
    flex-grow: 0 !important;
}

/* Editor: Ensure column wrapper respects width */
.editor-styles-wrapper [data-type="blockenberg/column"] {
    flex: 0 0 auto !important;
    min-width: 0 !important;
}

/* Allow flex grow only when explicitly needed */
.bkbg-row--flex-grow .bkbg-column {
    flex-grow: 1;
}

/* ========================================
   Drag and Drop States
   ======================================== */

/* Show drop zones when dragging blocks globally */
body.bkbg-is-dragging .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child {
    opacity: 1 !important;
    pointer-events: auto !important;
}

/* Show all borders during drag - like hover state */
body.bkbg-is-dragging .bkbg-section {
    border-color: rgba(59, 130, 246, 0.3) !important;
}

body.bkbg-is-dragging .bkbg-row {
    border-color: rgba(59, 130, 246, 0.3) !important;
}

body.bkbg-is-dragging .bkbg-column {
    border-color: rgba(59, 130, 246, 0.25) !important;
}

/* Highlight when dragging over - stronger highlight */
body.bkbg-is-dragging .bkbg-section.bkbg-drop-target {
    border-color: rgba(59, 130, 246, 0.6) !important;
    background-color: rgba(59, 130, 246, 0.03) !important;
}

body.bkbg-is-dragging .bkbg-row.bkbg-drop-target {
    border-color: rgba(59, 130, 246, 0.6) !important;
    background-color: rgba(59, 130, 246, 0.03) !important;
}

body.bkbg-is-dragging .bkbg-column.bkbg-drop-target {
    border-color: rgba(59, 130, 246, 0.6) !important;
    background-color: rgba(59, 130, 246, 0.05) !important;
}

/* Highlight drop zone (appender button) when dragging over */
.block-editor-button-block-appender.bkbg-drop-target,
.bkbg-column .block-editor-button-block-appender.bkbg-drop-target,
.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child .block-editor-button-block-appender.bkbg-drop-target {
    background: rgba(59, 130, 246, 0.15) !important;
    border-color: rgba(59, 130, 246, 0.8) !important;
    border-style: solid !important;
}

.block-editor-button-block-appender.bkbg-drop-target svg,
.bkbg-column .block-editor-button-block-appender.bkbg-drop-target svg,
.editor-styles-wrapper .bkbg-column > .bkbg-column__inner > .block-editor-inner-blocks > .block-editor-block-list__layout > .block-list-appender:only-child .block-editor-button-block-appender.bkbg-drop-target svg {
    stroke: rgba(59, 130, 246, 1) !important;
    fill: rgba(59, 130, 246, 0.3) !important;
}

/* Also highlight when parent block-list-appender has bkbg-drop-target */
.block-list-appender.bkbg-drop-target .block-editor-button-block-appender,
.editor-styles-wrapper .bkbg-column .block-list-appender.bkbg-drop-target .block-editor-button-block-appender {
    background: rgba(59, 130, 246, 0.15) !important;
    border-color: rgba(59, 130, 246, 0.8) !important;
    border-style: solid !important;
}

.block-list-appender.bkbg-drop-target .block-editor-button-block-appender svg,
.editor-styles-wrapper .bkbg-column .block-list-appender.bkbg-drop-target .block-editor-button-block-appender svg {
    stroke: rgba(59, 130, 246, 1) !important;
    fill: rgba(59, 130, 246, 0.3) !important;
}

/* Inspector: spacing controls */
.block-editor-page .bkbg-spacing-control,
.interface-interface-skeleton__editor .bkbg-spacing-control {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid #e2e8f0;
}

.block-editor-page .bkbg-spacing-control__title,
.interface-interface-skeleton__editor .bkbg-spacing-control__title {
    font-size: 13px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 10px;
}

.block-editor-page .bkbg-spacing-control__grid,
.interface-interface-skeleton__editor .bkbg-spacing-control__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 12px;
}

.block-editor-page .bkbg-spacing-control__item,
.interface-interface-skeleton__editor .bkbg-spacing-control__item {
    min-width: 0;
}

.block-editor-page .bkbg-spacing-control__label,
.interface-interface-skeleton__editor .bkbg-spacing-control__label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 4px;
}

.block-editor-page .bkbg-spacing-control__row,
.interface-interface-skeleton__editor .bkbg-spacing-control__row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 78px;
    gap: 6px;
    align-items: center;
}

.block-editor-page .bkbg-spacing-control__custom-unit,
.interface-interface-skeleton__editor .bkbg-spacing-control__custom-unit {
    margin-top: 6px;
}