/* =============================================
   Image Tab
   Ported from ComfyUI-Workflow-Studio's image-edit-tab.css.
   Local variables map to comic-creator's existing :root palette.
   ============================================= */

#image-tab {
    --it-bg: var(--bg-color, #1e1e1e);
    --it-surface: var(--secondary-color, #2d2d2d);
    --it-surface-hover: var(--hover-color, #3d3d3d);
    --it-border: var(--border-color, #3e3e3e);
    --it-text: var(--text-color, #e0e0e0);
    --it-text-secondary: var(--text-secondary, #999999);
    --it-primary: var(--primary-color, #0078d4);
    --it-success: #4caf50;

    padding: 0;
    overflow: hidden;
}

#image-tab.tab-content.active {
    display: flex;
    height: 100%;
}

.ie-editor {
    display: flex;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--it-bg);
}

/* =============================================
   Left Toolbar
   ============================================= */

.ie-toolbar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 5px;
    background: var(--it-surface);
    border-right: 1px solid var(--it-border);
    width: 46px;
    flex-shrink: 0;
}

.ie-tool-btn {
    width: 34px;
    height: 34px;
    border: 1px solid transparent;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--it-text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.12s, border-color 0.12s;
    user-select: none;
    position: relative;
}

.ie-tool-btn:hover {
    background: var(--it-surface-hover);
    border-color: var(--it-border);
}

.ie-tool-btn.active {
    background: var(--it-primary);
    border-color: var(--it-primary);
    color: #fff;
}

/* =============================================
   Buttons (local to Image tab)
   ============================================= */

.it-btn {
    background: var(--it-surface-hover);
    color: var(--it-text);
    border: 1px solid var(--it-border);
    border-radius: 4px;
    padding: 5px 10px;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.12s, border-color 0.12s;
}

.it-btn:hover {
    background: var(--it-border);
}

.it-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.it-btn-sm {
    padding: 3px 8px;
    font-size: 11px;
}

.it-btn-primary {
    background: var(--it-primary);
    border-color: var(--it-primary);
    color: #fff;
}

.it-btn-primary:hover {
    filter: brightness(1.1);
}

/* =============================================
   Center column
   ============================================= */

.ie-center {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

/* Action bar */
.ie-action-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border-bottom: 1px solid var(--it-border);
    background: var(--it-surface);
    flex-shrink: 0;
    flex-wrap: wrap;
}

/* Save / Send to グループの区切り線 */
.ie-action-sep {
    width: 1px;
    height: 20px;
    background: var(--it-border);
    margin: 0 2px;
    flex-shrink: 0;
}

/* Tool options bar */
.ie-tool-options {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 5px 10px;
    border-bottom: 1px solid var(--it-border);
    background: var(--it-surface);
    flex-shrink: 0;
    flex-wrap: wrap;
    min-height: 36px;
    font-size: 12px;
}

.ie-opt-group {
    display: flex;
    align-items: center;
    gap: 5px;
}

.ie-opt-group label {
    color: var(--it-text-secondary);
    white-space: nowrap;
}

.ie-opt-select {
    font-size: 12px;
    padding: 2px 5px;
    background: var(--it-surface);
    color: var(--it-text);
    border: 1px solid var(--it-border);
    border-radius: 4px;
    cursor: pointer;
}

.ie-opt-input {
    font-size: 12px;
    padding: 2px 5px;
    background: var(--it-surface);
    color: var(--it-text);
    border: 1px solid var(--it-border);
    border-radius: 4px;
}

.ie-opt-active {
    background: var(--it-primary) !important;
    color: #fff !important;
    border-color: var(--it-primary) !important;
}

/* Canvas wrap */
.ie-canvas-wrap {
    flex: 1;
    overflow: hidden;
    position: relative;
    background: #1a1a1a;
    background-image:
        linear-gradient(45deg, #222 25%, transparent 25%),
        linear-gradient(-45deg, #222 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #222 75%),
        linear-gradient(-45deg, transparent 75%, #222 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}

.ie-canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: top left;
    line-height: 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.6);
}

.ie-canvas-container canvas {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
}

#ie-canvas-bg {
    z-index: 1;
}

#ie-canvas-draw {
    z-index: 2;
    cursor: crosshair;
}

#ie-canvas-overlay {
    z-index: 3;
    cursor: default;
    pointer-events: none; /* SelectTool.activate()でautoに変更 */
}

/* Selectツール専用の拡張オーバーレイ。キャンバス実サイズより一回り大きく取り、
   キャンバス範囲外にはみ出したオブジェクトの選択枠・ハンドルも表示・操作できるようにする
   （ピクセル内容自体はcanvas要素の性質上はみ出た部分を描画できないため対象外、枠とハンドルのみ）。
   ie-canvas-overlay（Crop/Blur/Shape/MaskVector等が使う既存オーバーレイ）とは独立させ、
   Selectツール以外の挙動には影響しないようにしている */
#ie-canvas-select-overlay {
    z-index: 4;
    cursor: default;
    pointer-events: none; /* SelectTool.activate()でautoに変更 */
}

.ie-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--it-text-secondary);
    font-size: 14px;
    pointer-events: none;
    gap: 8px;
}

.ie-placeholder-icon {
    font-size: 40px;
    opacity: 0.3;
}

/* Zoom bar */
.ie-zoom-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-top: 1px solid var(--it-border);
    background: var(--it-surface);
    font-size: 12px;
    flex-shrink: 0;
    color: var(--it-text-secondary);
}

#ie-zoom-label {
    min-width: 38px;
    text-align: right;
    color: var(--it-text);
}

/* =============================================
   Properties Pane (left of Layers panel)
   ============================================= */

.ie-props-pane {
    width: 160px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--it-border);
    background: var(--it-surface);
    overflow: hidden;
}

.ie-props-header {
    display: flex;
    align-items: center;
    padding: 5px 8px;
    border-bottom: 1px solid var(--it-border);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--it-text-secondary);
    flex-shrink: 0;
}

.ie-props-body {
    flex: 1;
    overflow-y: auto;
    padding: 8px 6px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ie-props-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 11px;
}

.ie-props-row label {
    color: var(--it-text-secondary);
    white-space: nowrap;
}

.ie-props-row input[type="range"] {
    width: 100%;
}

.ie-props-row span {
    font-size: 11px;
    color: var(--it-text);
    text-align: right;
}

/* Mask layer item highlight */
.ie-layer-item[data-type="mask"] .ie-layer-type-icon {
    color: #e25252;
}

/* =============================================
   Right Panel (Layers)
   ============================================= */

.ie-right-panel {
    width: 220px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--it-border);
    background: var(--it-surface);
    overflow: hidden;
}

.ie-layers-header {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 5px 6px;
    border-bottom: 1px solid var(--it-border);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--it-text-secondary);
    flex-shrink: 0;
}

.ie-layers-header > span {
    flex: 1;
}

.ie-layers-header-row2 {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 6px;
    border-bottom: 1px solid var(--it-border);
    flex-shrink: 0;
}

.ie-layers-header-row2 .it-btn {
    flex: 1;
}

.ie-layer-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px;
}

.ie-layer-item {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 5px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    user-select: none;
    transition: background 0.1s;
}

.ie-layer-item:hover {
    background: var(--it-surface-hover);
}

.ie-layer-item.active {
    background: rgba(90, 110, 220, 0.22);
    outline: 1px solid rgba(90, 110, 220, 0.4);
}

.ie-layer-item.multi-selected {
    background: rgba(90, 110, 220, 0.12);
    outline: 1px dashed rgba(90, 110, 220, 0.5);
}

.ie-layer-thumb {
    width: 30px;
    height: 30px;
    border: 1px solid var(--it-border);
    border-radius: 3px;
    flex-shrink: 0;
    object-fit: cover;
    background:
        repeating-conic-gradient(#888 0% 25%, transparent 0% 50%)
        0 0 / 8px 8px;
}

.ie-layer-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ie-layer-vis-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 13px;
    padding: 0;
    line-height: 1;
    color: var(--it-text);
    opacity: 0.85;
    flex-shrink: 0;
    transition: opacity 0.1s;
}

.ie-layer-vis-btn:hover {
    opacity: 1;
}

/* レイヤーグループ（フォルダ）ヘッダー行。メンバーレイヤーはgroupIdで判定し、
   このヘッダーの直後にまとめて表示される（layers配列自体の並びは変更しない） */
.ie-layer-group-header {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 5px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    -webkit-user-select: none;
    user-select: none;
    color: var(--it-text-secondary);
    transition: background 0.1s;
}

.ie-layer-group-header:hover {
    background: var(--it-surface-hover);
}

.ie-layer-group-icon {
    flex-shrink: 0;
    font-size: 9px;
    width: 12px;
    text-align: center;
}

.ie-layer-group-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ie-layer-group-count {
    font-size: 10px;
    color: var(--it-text-secondary);
    flex-shrink: 0;
}

.ie-layer-item-grouped {
    padding-left: 20px;
}

.ie-adj-add-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    border-top: 1px solid var(--it-border);
    flex-shrink: 0;
}

.ie-adj-add-row .ie-opt-select {
    flex: 1;
    min-width: 0;
}

.ie-global-opacity-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    border-bottom: 1px solid var(--it-border);
    font-size: 11px;
    flex-shrink: 0;
    color: var(--it-text-secondary);
}

.ie-global-opacity-row label {
    white-space: nowrap;
}

.ie-global-opacity-row input[type="range"] {
    flex: 1;
}

#ie-global-opacity-label {
    min-width: 32px;
    text-align: right;
    color: var(--it-text);
}

.ie-opacity-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    border-top: 1px solid var(--it-border);
    font-size: 12px;
    flex-shrink: 0;
    color: var(--it-text-secondary);
}

.ie-opacity-row input[type="range"] {
    flex: 1;
}

#ie-layer-opacity-label {
    min-width: 32px;
    text-align: right;
    color: var(--it-text);
}

/* =============================================
   Text Tool Overlay
   ============================================= */

.ie-text-overlay {
    position: absolute;
    z-index: 100;
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: 6px;
    padding: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 180px;
}

.ie-text-textarea {
    width: 200px;
    resize: vertical;
    background: var(--it-bg);
    color: var(--it-text);
    border: 1px solid var(--it-border);
    border-radius: 4px;
    padding: 6px;
    font-size: 13px;
    font-family: inherit;
    min-height: 60px;
}

.ie-text-btn-row {
    display: flex;
    gap: 6px;
    justify-content: flex-end;
}

/* =============================================
   Close confirm dialog
   ============================================= */

.ie-confirm-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ie-confirm-box {
    background: var(--it-surface);
    border: 1px solid var(--it-border);
    border-radius: 8px;
    padding: 20px;
    min-width: 280px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.ie-confirm-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--it-text);
    margin-bottom: 8px;
}

.ie-confirm-body {
    font-size: 12px;
    color: var(--it-text-secondary);
    margin-bottom: 16px;
}

.ie-confirm-btns {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* =============================================
   Toast
   ============================================= */

.ie-toast {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--it-surface);
    color: var(--it-text);
    border: 1px solid var(--it-border);
    border-radius: 6px;
    padding: 8px 16px;
    font-size: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
    z-index: 200;
    transition: opacity 0.3s;
    pointer-events: none;
}

.ie-toast.success {
    border-color: var(--it-success);
    color: var(--it-success);
}

.ie-toast.error {
    border-color: #e2534a;
    color: #e2534a;
}

/* =============================================
   Scrollbar
   ============================================= */

.ie-layer-list::-webkit-scrollbar {
    width: 4px;
}

.ie-layer-list::-webkit-scrollbar-thumb {
    background: var(--it-border);
    border-radius: 2px;
}

/* Draw tool palette */
.ie-palette-content {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px 14px;
}

.ie-palette-wells {
    gap: 6px;
}

.ie-palette-well,
.ie-palette-swatch {
    padding: 0;
    border-radius: 50%;
    background: var(--swatch, transparent);
    cursor: pointer;
}

.ie-palette-well {
    width: 26px;
    height: 26px;
    border: 1px solid var(--it-text-secondary);
}

.ie-palette-well.is-active {
    outline: 2px solid var(--it-primary);
    outline-offset: 2px;
}

.ie-palette-grid {
    display: grid;
    grid-template-columns: repeat(10, 16px);
    grid-auto-rows: 16px;
    gap: 2px;
}

.ie-palette-swatch {
    width: 16px;
    height: 16px;
    border: 1px solid rgba(128, 128, 128, 0.7);
}

.ie-palette-swatch.is-empty {
    border-color: var(--it-text-secondary);
    opacity: 0.6;
}

.ie-palette-swatch:hover,
.ie-palette-swatch:focus-visible,
.ie-palette-well:focus-visible {
    outline: 1px solid var(--it-text);
    outline-offset: 1px;
    opacity: 1;
}

.ie-palette-swatch.is-current {
    outline: 2px solid var(--it-primary);
    outline-offset: 0;
}

.ie-palette-picker {
    position: fixed;
    width: 1px;
    height: 1px;
    padding: 0;
    border: 0;
    opacity: 0;
    pointer-events: none;
}

.ie-palette-menu {
    position: fixed;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    min-width: 150px;
    padding: 4px;
    border: 1px solid var(--it-border);
    border-radius: 4px;
    background: var(--it-surface);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.ie-palette-menu button {
    padding: 5px 10px;
    border: 0;
    border-radius: 3px;
    background: transparent;
    color: var(--it-text);
    font-size: 12px;
    text-align: left;
    cursor: pointer;
}

.ie-palette-menu button:hover {
    background: var(--it-surface-hover);
}