/* ============================================================================
   Whiteboard Styles
   ============================================================================ */

/* Board List */
.wb-list-toolbar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}
.wb-list-toolbar .search-box {
    flex: 1;
    max-width: 400px;
}
.wb-archive-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
}

/* Board Grid */
.wb-board-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.wb-board-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: box-shadow 0.2s, transform 0.15s, border-color 0.2s;
}
.wb-board-card:hover {
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
    transform: translateY(-2px);
    border-color: var(--primary-color);
}
.wb-board-thumb {
    height: 160px;
    background: var(--hover-bg, #f5f5f5);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}
.wb-board-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.wb-board-thumb-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    opacity: 0.4;
}
.wb-board-thumb-placeholder svg {
    width: 80px;
    height: 80px;
}
.wb-board-info {
    padding: 12px 16px;
}
.wb-board-title {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.wb-board-meta {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.wb-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.wb-meta-item svg {
    flex-shrink: 0;
    opacity: 0.6;
}
.wb-board-collabs {
    color: var(--primary-color);
}
.wb-board-collabs svg {
    opacity: 0.8;
}
.wb-board-actions {
    display: flex;
    gap: 4px;
    padding: 8px 16px;
    border-top: 1px solid var(--border-color);
    justify-content: flex-end;
    opacity: 0;
    transition: opacity 0.15s;
}
.wb-board-card:hover .wb-board-actions {
    opacity: 1;
}
.wb-board-actions .btn-icon {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: background 0.15s, color 0.15s;
    padding: 0;
}
.wb-board-actions .btn-icon svg {
    display: block;
}
.wb-board-actions .btn-icon:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}
.wb-board-actions .wb-delete-btn:hover,
.wb-board-actions .wb-permanent-delete-btn:hover {
    color: var(--danger-color, #e53935);
}

/* Archived board cards */
.wb-board-card.wb-archived {
    opacity: 0.7;
}
.wb-board-card.wb-archived .wb-board-thumb {
    filter: grayscale(0.5);
}
.wb-board-card.wb-archived:hover {
    opacity: 1;
}
.wb-archived-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.3px;
}
.wb-board-card.wb-archived .wb-board-actions {
    opacity: 1;
}

/* Template Picker Modal */
.wb-template-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.wb-template-modal {
    background: var(--card-bg);
    border-radius: 12px;
    width: 600px;
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}
.wb-template-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}
.wb-template-header h2 {
    margin: 0;
    font-size: 18px;
}
.wb-template-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    line-height: 1;
}
.wb-template-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}
.wb-template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}
.wb-template-card {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 8px;
    cursor: pointer;
    text-align: center;
    transition: border-color 0.2s;
}
.wb-template-card:hover {
    border-color: var(--primary-color);
}
.wb-template-card.selected {
    border-color: var(--primary-color);
    background: rgba(33, 150, 243, 0.05);
}
.wb-template-thumb {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f8f8;
    border-radius: 4px;
    margin-bottom: 8px;
    overflow: hidden;
}
.wb-template-thumb.blank svg {
    width: 60px;
    height: 40px;
}
.wb-template-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.wb-template-placeholder {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: capitalize;
}
.wb-template-name {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 500;
}
.wb-template-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
}

/* ============================================================================
   Editor Layout
   ============================================================================ */
.wb-editor {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 64px);
    background: var(--bg-primary);
}
.wb-editor-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    min-height: 48px;
}
.wb-back-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    color: var(--text-secondary);
    border-radius: 4px;
}
.wb-back-btn:hover {
    background: var(--hover-bg);
}
.wb-title-area {
    flex: 1;
    min-width: 0;
}
.wb-title {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.wb-title:hover {
    background: var(--hover-bg);
}
.wb-title-input {
    font-size: 16px;
    font-weight: 600;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    padding: 4px 8px;
    width: 100%;
    outline: none;
}
.wb-editor-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.wb-editor-actions .btn-icon {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: background 0.15s, color 0.15s;
    padding: 0;
}
.wb-editor-actions .btn-icon svg {
    display: block;
    flex-shrink: 0;
}
.wb-editor-actions .btn-icon:hover:not(:disabled) {
    background: var(--hover-bg);
    color: var(--text-primary);
}
.wb-editor-actions .btn-icon:disabled {
    opacity: 0.35;
    cursor: default;
}
.wb-grid-toggle.active {
    background: var(--primary-color);
    color: #fff;
    border-radius: 6px;
}
.wb-grid-toggle.active:hover {
    background: var(--primary-hover);
    color: #fff;
}
.wb-zoom-controls {
    display: flex;
    align-items: center;
    gap: 2px;
}
.wb-zoom-level {
    min-width: 44px;
    text-align: center;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    user-select: none;
}
.wb-undo-redo {
    display: flex;
    gap: 2px;
}
.wb-export-group {
    position: relative;
}
.wb-export-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    flex-direction: column;
    z-index: 100;
    overflow: hidden;
}
.wb-export-dropdown button {
    display: block;
    width: 100%;
    padding: 8px 16px;
    text-align: left;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
}
.wb-export-dropdown button:hover {
    background: var(--hover-bg);
}
.wb-save-status {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 60px;
}

/* Editor Body */
.wb-editor-body {
    flex: 1;
    display: flex;
    overflow: hidden;
    position: relative;
}
.wb-toolbar-container {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    /* top/left/transform overridden by JS when dragged or restored from prefs */
}
.wb-canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}
.wb-side-panels {
    width: 240px;
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
}

/* ============================================================================
   Toolbar (from core engine)
   ============================================================================ */
.wb-toolbar {
    display: flex;
    align-items: center;
    gap: 2px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.wb-toolbar-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: background 0.15s, color 0.15s;
}
.wb-toolbar-btn svg {
    display: block;
    flex-shrink: 0;
}
.wb-toolbar-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}
.wb-toolbar-btn.active {
    background: var(--primary-color);
    color: #fff;
}
.wb-toolbar-sep {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 4px;
}

/* Drag grip handle */
.wb-toolbar-grip {
    width: 12px;
    height: 28px;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    flex-shrink: 0;
    opacity: 0.5;
    transition: opacity 0.15s;
}
.wb-toolbar-grip:hover {
    opacity: 1;
}
.wb-toolbar-grip:active {
    cursor: grabbing;
}

/* Direction toggle button */
.wb-toolbar-dir-toggle {
    opacity: 0.6;
}
.wb-toolbar-dir-toggle:hover {
    opacity: 1;
}

/* Vertical toolbar mode */
.wb-toolbar.wb-toolbar-vertical {
    flex-direction: column;
}
.wb-toolbar-vertical .wb-toolbar-sep {
    width: 24px;
    height: 1px;
    margin: 4px 0;
}
.wb-toolbar-vertical .wb-toolbar-grip {
    width: 28px;
    height: 12px;
}
.wb-toolbar-vertical .wb-toolbar-grip svg {
    transform: rotate(90deg);
}

/* ============================================================================
   Layer Panel
   ============================================================================ */
.wb-layer-panel {
    padding: 8px;
}
.wb-layer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 4px;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
}
.wb-layer-add-btn {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    color: var(--text-secondary);
}
.wb-layer-add-btn:hover {
    background: var(--hover-bg);
}
.wb-layer-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.wb-layer-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 4px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
}
.wb-layer-item:hover {
    background: var(--hover-bg);
}
.wb-layer-item.active {
    background: rgba(33, 150, 243, 0.1);
    border-left: 3px solid var(--primary-color);
}
.wb-layer-vis-btn, .wb-layer-lock-btn, .wb-layer-del-btn {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 12px;
    border-radius: 3px;
    padding: 0;
    color: var(--text-secondary);
}
.wb-layer-vis-btn:hover, .wb-layer-lock-btn:hover, .wb-layer-del-btn:hover {
    background: var(--hover-bg);
}
.wb-layer-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.wb-layer-del-btn {
    opacity: 0;
}
.wb-layer-item:hover .wb-layer-del-btn {
    opacity: 1;
}
.wb-layer-item.locked {
    opacity: 0.65;
}
.wb-layer-item.locked .wb-layer-name {
    text-decoration: line-through;
    color: var(--text-muted);
}
.wb-layer-lock-btn.is-locked {
    color: var(--danger-color, #e53935);
}
.wb-layer-vis-btn svg, .wb-layer-lock-btn svg, .wb-layer-del-btn svg {
    display: block;
}

/* ============================================================================
   Properties Panel
   ============================================================================ */
.wb-properties-panel {
    padding: 8px;
    border-top: 1px solid var(--border-color);
}
.wb-props-header {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
    padding: 8px 4px;
    text-transform: capitalize;
}
.wb-props-section {
    padding: 4px 0;
}
.wb-props-section > label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    padding: 4px 0 2px;
}
.wb-props-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 0;
    font-size: 13px;
}
.wb-props-row label {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 14px;
    white-space: nowrap;
    flex-shrink: 0;
}
.wb-props-row input[type="number"] {
    width: 60px;
    min-width: 50px;
    flex-shrink: 0;
    padding: 3px 6px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 12px;
    background: var(--card-bg);
    color: var(--text-primary);
}
.wb-props-row input[type="color"] {
    width: 32px;
    height: 24px;
    padding: 1px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
}
.wb-props-row input[type="range"] {
    flex: 1;
    min-width: 0;
    max-width: 120px;
    height: 20px;
    cursor: pointer;
    -webkit-appearance: auto;
    appearance: auto;
}
.wb-props-select {
    flex: 1;
    padding: 4px 6px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 12px;
    background: var(--card-bg);
    color: var(--text-primary);
}
.wb-text-format-row {
    gap: 2px !important;
}
.wb-format-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
    padding: 0;
}
.wb-format-btn:hover {
    background: var(--hover-bg);
}
.wb-format-btn.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}
.wb-format-btn svg {
    display: block;
}
.wb-format-sep {
    width: 1px;
    height: 20px;
    background: var(--border-color);
    margin: 0 2px;
}
.wb-writing-mode-row {
    margin-top: 2px;
}
.wb-jp-typo-row {
    flex-wrap: wrap;
    gap: 4px !important;
    margin-top: 2px;
}
.wb-typo-toggle {
    font-size: 10px !important;
    padding: 2px 6px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
    color: var(--text-secondary);
    background: none;
    white-space: nowrap;
    min-width: auto !important;
}
.wb-typo-toggle:hover {
    background: var(--hover-bg);
}
.wb-typo-toggle.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* ============================================================================
   Context Menu
   ============================================================================ */
.wb-context-menu {
    position: fixed;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 1000;
    min-width: 160px;
    max-height: calc(100vh - 16px);
    overflow-y: auto;
    padding: 4px 0;
}
.wb-ctx-item {
    padding: 8px 16px;
    font-size: 13px;
    cursor: pointer;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    white-space: nowrap;
}
.wb-ctx-item:hover:not(.wb-ctx-disabled) {
    background: var(--hover-bg);
}
.wb-ctx-item.wb-ctx-disabled {
    opacity: 0.4;
    cursor: default;
    pointer-events: none;
}
.wb-ctx-arrow {
    font-size: 10px;
    margin-left: 12px;
    opacity: 0.5;
}
.wb-ctx-sub {
    position: fixed;
}
.wb-ctx-sep {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* ============================================================================
   Color Picker
   ============================================================================ */
.wb-color-picker {
    position: fixed;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 1001;
    padding: 12px;
}
.wb-color-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
    margin-bottom: 8px;
}
.wb-color-swatch {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
}
.wb-color-swatch:hover {
    border-color: var(--primary-color);
    transform: scale(1.1);
}
.wb-color-custom {
    display: flex;
    align-items: center;
    gap: 8px;
}
.wb-color-input {
    width: 100%;
    height: 30px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
}

/* ============================================================================
   Text Editing Overlay
   ============================================================================ */
.wb-text-overlay {
    border-radius: 2px;
    box-sizing: border-box;
    overflow: auto;
    resize: none;
    cursor: text;
}

/* ============================================================================
   Responsive
   ============================================================================ */
@media (max-width: 768px) {
    .wb-side-panels {
        display: none;
    }
    .wb-board-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
    .wb-editor-actions {
        gap: 6px;
    }
    .wb-export-group,
    .wb-zoom-controls {
        display: none;
    }
    .wb-toolbar {
        gap: 1px;
        padding: 3px;
        border-radius: 6px;
    }
    .wb-toolbar-btn {
        width: 40px;
        height: 40px;
        /* Larger touch targets on mobile */
    }
    .wb-toolbar-sep {
        margin: 0 2px;
    }
    .wb-editor-header {
        padding: 6px 10px;
        min-height: 44px;
    }
    .wb-title {
        font-size: 14px;
    }
    .wb-save-status {
        display: none;
    }
}

/* ============================================================================
   Gradient Editor
   ============================================================================ */
.wb-gradient-editor {
    padding: 4px 0;
}
.wb-gradient-bar {
    height: 20px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    margin-bottom: 2px;
}
.wb-gradient-stops {
    position: relative;
    height: 16px;
    cursor: pointer;
}
.wb-gradient-stop {
    position: absolute;
    top: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px var(--border-color), 0 1px 3px rgba(0,0,0,0.3);
    transform: translateX(-50%);
    cursor: grab;
    z-index: 1;
}
.wb-gradient-stop:active {
    cursor: grabbing;
    box-shadow: 0 0 0 1px var(--primary-color), 0 1px 4px rgba(0,0,0,0.4);
}
.wb-gradient-angle-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    font-size: 11px;
    color: var(--text-secondary);
}
.wb-gradient-angle-row label {
    min-width: 32px;
}
.wb-gradient-angle-row input[type="range"] {
    flex: 1;
}
.wb-gradient-angle-row span {
    min-width: 28px;
    text-align: right;
}

/* Touch devices: larger handles */
@media (pointer: coarse) {
    .wb-toolbar-btn {
        width: 42px;
        height: 42px;
    }
    .wb-toolbar-grip {
        width: 16px;
        height: 36px;
    }
    .wb-toolbar-vertical .wb-toolbar-grip {
        width: 36px;
        height: 16px;
    }
}

/* ============================================================================
   Dark Mode — driven by [data-theme="dark"] on <html>, NOT browser preference.
   The app's ThemeService manages the data-theme attribute.
   Most elements already use CSS variables (--card-bg, --border-color,
   --text-primary, --text-secondary, --hover-bg) which auto-switch.
   Only canvas-specific elements that lack variable coverage need overrides.
   ============================================================================ */
/* ============================================================================
   Filmstrip (page navigation strip for document mode)
   ============================================================================ */
.wb-filmstrip {
    display: flex;
    gap: 8px;
    padding: 8px 16px;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    overflow-x: auto;
    min-height: 80px;
    align-items: center;
    scrollbar-width: thin;
}
.wb-filmstrip::-webkit-scrollbar {
    height: 6px;
}
.wb-filmstrip::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}
.wb-filmstrip-page {
    width: 100px;
    height: 65px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background: #fff;
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
    transition: border-color 0.15s, box-shadow 0.15s;
    overflow: hidden;
}
.wb-filmstrip-page:hover {
    border-color: var(--primary-color);
}
.wb-filmstrip-page.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.2);
}
.wb-filmstrip-page.dragging {
    opacity: 0.5;
}
.wb-filmstrip-page.drag-over {
    border-color: var(--primary-color);
    border-style: dashed;
}
.wb-filmstrip-label {
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 10px;
    color: var(--text-secondary);
    font-weight: 500;
    background: rgba(255,255,255,0.85);
    line-height: 1.4;
}
.wb-filmstrip-add {
    width: 100px;
    height: 65px;
    border: 2px dashed var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color 0.15s, background 0.15s;
    color: var(--text-secondary);
}
.wb-filmstrip-add:hover {
    border-color: var(--primary-color);
    background: rgba(33, 150, 243, 0.05);
    color: var(--primary-color);
}
.wb-filmstrip-menu {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    min-width: 160px;
    padding: 4px 0;
}

/* Filmstrip container layout */
.wb-filmstrip-container {
    flex-shrink: 0;
}

/* Page indicator in editor header */
.wb-page-indicator {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* Mode badge on board cards */
.wb-mode-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 10px;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.wb-mode-badge.document {
    background: rgba(33, 150, 243, 0.1);
    color: var(--primary-color);
}
.wb-mode-badge.canvas {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-secondary);
}

/* Clipart / Media Library */
.wb-clipart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
}
.wb-clipart-item {
    aspect-ratio: 1;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.wb-clipart-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.wb-clipart-item {
    position: relative;
}
.wb-clipart-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.wb-media-badge-play {
    position: absolute;
    bottom: 6px;
    right: 6px;
    width: 24px;
    height: 24px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    pointer-events: none;
}
.wb-media-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--text-secondary);
    background: var(--surface-elevated, #f5f5f5);
}
.wb-media-icon-video {
    background: #1a1a2e;
    color: rgba(255,255,255,0.6);
}
.wb-media-icon-audio {
    background: var(--surface-elevated, #f0f0f0);
    color: var(--primary-color, #C8102E);
}
.wb-media-filter-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 12px;
}
.wb-media-filter-btn {
    padding: 4px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: none;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.15s;
}
.wb-media-filter-btn:hover {
    background: var(--hover-bg);
}
.wb-media-filter-btn.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* Media Archive / Trash UI */
.wb-media-trash-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    background: none;
    position: relative;
    transition: all 0.15s;
}
.wb-media-trash-btn:hover {
    border-color: var(--text-secondary);
    background: var(--hover-bg);
}
.wb-media-trash-btn.active {
    border-color: var(--danger-color, #e53935);
    color: var(--danger-color, #e53935);
    background: rgba(229, 57, 53, 0.08);
}
.wb-media-trash-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    border-radius: 8px;
    background: var(--danger-color, #e53935);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    line-height: 16px;
    text-align: center;
}
.wb-clipart-item {
    position: relative;
}
.wb-media-archive-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: none;
    background: rgba(0,0,0,0.55);
    color: #fff;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s, background 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    padding: 0;
}
.wb-clipart-item:hover .wb-media-archive-btn {
    opacity: 1;
}
.wb-media-archive-btn:hover {
    background: var(--danger-color, #e53935);
}
.wb-clipart-item.archived {
    opacity: 0.5;
    filter: grayscale(0.6);
    transition: opacity 0.15s, filter 0.15s;
}
.wb-clipart-item.archived:hover {
    opacity: 0.85;
    filter: grayscale(0.2);
}
.wb-media-archive-actions {
    position: absolute;
    bottom: 4px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 6px;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 2;
}
.wb-clipart-item.archived:hover .wb-media-archive-actions {
    opacity: 1;
}
.wb-media-restore-btn,
.wb-media-purge-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: background 0.15s, transform 0.15s;
}
.wb-media-restore-btn {
    background: rgba(76, 175, 80, 0.85);
    color: #fff;
}
.wb-media-restore-btn:hover {
    background: #4caf50;
    transform: scale(1.1);
}
.wb-media-purge-btn {
    background: rgba(229, 57, 53, 0.85);
    color: #fff;
}
.wb-media-purge-btn:hover {
    background: #e53935;
    transform: scale(1.1);
}

/* ============================================================================
   Cell Editing Toolbar (mini floating toolbar above cell overlay)
   ============================================================================ */
.wb-cell-toolbar {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 3px;
    padding: 3px 5px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    z-index: 1001;
    white-space: nowrap;
}
.wb-cell-toolbar button {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text-primary);
    padding: 0;
}
.wb-cell-toolbar button:hover {
    background: var(--hover-bg);
}
.wb-cell-toolbar button.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}
.wb-cell-toolbar button svg {
    display: block;
    width: 14px;
    height: 14px;
}
.wb-cell-toolbar .wb-cell-sep {
    width: 1px;
    height: 18px;
    background: var(--border-color);
    margin: 0 2px;
    border: none;
    padding: 0;
    flex-shrink: 0;
}
.wb-cell-toolbar .wb-cell-color-swatch {
    width: 22px;
    height: 22px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.wb-cell-toolbar .wb-cell-color-swatch input[type="color"] {
    position: absolute;
    width: 32px;
    height: 32px;
    border: none;
    padding: 0;
    cursor: pointer;
    opacity: 0;
}
.wb-cell-toolbar .wb-cell-color-label {
    font-size: 10px;
    font-weight: 700;
    pointer-events: none;
}
.wb-cell-toolbar .wb-cell-font-select {
    max-width: 110px;
    padding: 2px 4px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 11px;
    background: var(--card-bg);
    color: var(--text-primary);
    cursor: pointer;
    height: 26px;
}
.wb-cell-toolbar .wb-cell-size-select {
    width: 48px;
    padding: 2px 2px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 11px;
    background: var(--card-bg);
    color: var(--text-primary);
    cursor: pointer;
    height: 26px;
}

/* Floating Text Toolbar */
.wb-floating-toolbar {
    position: absolute;
    z-index: 500;
    background: var(--card-bg, #fff);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 3px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 2px;
    pointer-events: auto;
    user-select: none;
    white-space: nowrap;
}
.wb-floating-toolbar button {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text-primary);
    padding: 0;
}
.wb-floating-toolbar button:hover {
    background: var(--hover-bg);
}
.wb-floating-toolbar button.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}
.wb-floating-toolbar button svg {
    display: block;
    width: 14px;
    height: 14px;
}
.wb-floating-toolbar .wb-ft-sep {
    width: 1px;
    height: 18px;
    background: var(--border-color);
    margin: 0 2px;
    flex-shrink: 0;
}
.wb-floating-toolbar .wb-ft-size {
    display: flex;
    align-items: center;
    gap: 1px;
}
.wb-floating-toolbar .wb-ft-size-label {
    font-size: 11px;
    min-width: 24px;
    text-align: center;
    color: var(--text-primary);
}
.wb-floating-toolbar .wb-ft-color-swatch {
    width: 22px;
    height: 22px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    overflow: hidden;
    position: relative;
}
.wb-floating-toolbar .wb-ft-color-swatch input[type="color"] {
    position: absolute;
    width: 32px;
    height: 32px;
    border: none;
    padding: 0;
    cursor: pointer;
    opacity: 0;
}

/* Inline mode: higher z-index to float above text overlay (z-index:1000) */
.wb-floating-toolbar.wb-inline-mode {
    z-index: 1001;
}

[data-theme="dark"] .wb-floating-toolbar {
    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

[data-theme="dark"] .wb-cell-toolbar {
    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

[data-theme="dark"] .wb-canvas-container {
    background: var(--bg-light, #1e1e1e);
}

/* Dark mode filmstrip adjustments */
[data-theme="dark"] .wb-filmstrip-page {
    background: #2a2a2a;
}
[data-theme="dark"] .wb-filmstrip-label {
    background: rgba(42, 42, 42, 0.85);
}
[data-theme="dark"] .wb-filmstrip-menu {
    background: var(--card-bg);
}