/* Mask editor modal for use_mask inpainting */

.mask-editor-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10050;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.45);
    padding: 16px;
}

.mask-editor-overlay.show {
    display: flex;
}

.mask-editor-dialog {
    background: var(--bg-panel);
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
    width: min(920px, 100%);
    max-height: min(92vh, 900px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.mask-editor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
}

.mask-editor-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.mask-editor-close {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    padding: 0 4px;
}

.mask-editor-close:hover {
    color: var(--text-primary);
}

.mask-editor-hint {
    padding: 8px 18px 0;
    font-size: 13px;
    color: var(--text-secondary);
}

.mask-editor-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px 18px;
    align-items: center;
}

.mask-editor-tool {
    border: 1px solid var(--border-color);
    background: var(--bg-hover);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.mask-editor-tool:hover {
    background: var(--bg-button);
}

.mask-editor-tool.active {
    background: var(--bg-button);
    border-color: var(--blue-accent);
    color: var(--blue-accent);
}

.mask-editor-stage-wrap {
    flex: 1;
    min-height: 200px;
    overflow: auto;
    padding: 0 18px 12px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.mask-editor-stage {
    position: relative;
    width: 100%;
    max-width: 100%;
    background: #0f172a0d;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.mask-editor-stage canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

#maskEditorBaseCanvas {
    z-index: 1;
}

#maskEditorDrawCanvas {
    z-index: 2;
    cursor: crosshair;
}

#maskEditorPreviewCanvas {
    z-index: 3;
    pointer-events: none;
}

.mask-editor-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 18px;
    border-top: 1px solid var(--border-color);
}

.attachment-item.is-mask {
    border-color: rgba(220, 38, 38, 0.35);
}

.attachment-mask-badge {
    display: inline-block;
    margin-top: 2px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #b91c1c;
    background: #fee2e2;
    border-radius: 4px;
    padding: 1px 5px;
}

@media (max-width: 640px) {
    .mask-editor-dialog {
        max-height: 96vh;
    }
}