/* === MASK CANVAS === */
            .mask-wrap {
                position: relative;
                aspect-ratio: 390 / 232;
                border-radius: var(--radius-sm);
                overflow: hidden;
                border: 1px solid var(--border);
                background: #f9fafb;
                cursor: grab;
                touch-action: none;
                margin-top: 6px;
            }

            .mask-backdrop {
                position: fixed;
                inset: 0;
                z-index: 40;
                background: rgba(0, 0, 0, 0.3);
                backdrop-filter: blur(8px);
            }
            .mask-backdrop[hidden] { display: none; }

            .mask-wrap.is-expanded {
                position: fixed;
                top: 50%;
                left: 50%;
                z-index: 41;
                width: min(1000px, calc(100vw - 36px));
                transform: translate(-50%, -50%);
                border-radius: var(--radius);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
            }

            .mask-wrap.is-adjusting { cursor: grabbing; }
            .mask-wrap.is-editing { cursor: crosshair; }
            .mask-wrap.has-brush-cursor #maskCanvas, .mask-wrap.has-text-preview #maskCanvas { cursor: none; }

            #maskCanvas { width: 100%; height: 100%; display: block; touch-action: none; }

            .brush-cursor {
                position: absolute;
                width: 16px;
                height: 16px;
                border: 2px solid var(--cursor-color, #c8ccd4);
                border-radius: 50%;
                pointer-events: none;
                transform: translate(-50%, -50%);
                z-index: 5;
            }

            .brush-cursor::before {
                content: '';
                position: absolute;
                top: 50%; left: 50%;
                width: 3px; height: 3px;
                border-radius: 50%;
                background: var(--cursor-color, #c8ccd4);
                transform: translate(-50%, -50%);
            }

            .brush-cursor::after {
                content: attr(data-label);
                position: absolute;
                top: 100%; left: 50%;
                transform: translate(-50%, 4px);
                padding: 1px 5px;
                border-radius: 3px;
                background: var(--bg-elevated);
                color: var(--text);
                font-size: 12px;
                white-space: nowrap;
                border: 1px solid var(--border);
            }

            .brush-cursor.is-eraser { border-style: dashed; border-color: var(--warn); }
            .brush-cursor.is-eraser::before { background: var(--warn); }
            .brush-cursor.is-eraser::after { border-color: var(--warn); color: var(--warn); }
            .brush-cursor[hidden] { display: none; }

            .text-placement-preview {
                position: absolute;
                z-index: 5;
                pointer-events: none;
                transform: rotate(var(--text-preview-angle, 0deg));
                opacity: 0.7;
            }
            .text-placement-preview[hidden] { display: none; }

            .text-preview-glyph { color: var(--text-preview-color, #c8ccd4); line-height: 1; }
            .text-placement-preview.is-outline .text-preview-glyph {
                color: transparent;
                -webkit-text-stroke: 1.5px var(--text-preview-color, #c8ccd4);
            }

            .text-preview-anchor {
                position: absolute;
                top: 100%; left: 50%;
                width: 10px; height: 10px;
                border: 1.5px solid var(--warn);
                border-radius: 50%;
                background: var(--bg-base);
                transform: translate(-50%, 5px);
            }
            .text-preview-anchor::before { content: ''; position: absolute; top: 50%; left: -9px; width: 15px; height: 1px; background: var(--warn); transform: translateY(-50%); }
            .text-preview-anchor::after { content: ''; position: absolute; top: -9px; left: 50%; width: 1px; height: 15px; background: var(--warn); transform: translateX(-50%); }

            .mask-expand {
                position: absolute;
                top: 6px; right: 6px;
                z-index: 3;
                padding: 4px 8px;
                border: 1px solid var(--border);
                border-radius: 4px;
                background: rgba(255, 255, 255, 0.85);
                color: var(--text-2);
                font-size: 13px;
                cursor: pointer;
                transition: background 0.15s, color 0.15s;
            }
            .mask-expand:hover { background: var(--bg-hover); color: var(--accent); }
            .mask-wrap.is-expanded .mask-expand { padding: 6px 10px; font-size: 14px; }
            .mask-wrap.is-expanded .adjust-hint { left: 12px; bottom: 12px; }

            .adjust-hint {
                position: absolute;
                bottom: 6px; left: 6px;
                z-index: 2;
                padding: 3px 6px;
                border-radius: 3px;
                background: rgba(255, 255, 255, 0.85);
                color: var(--text-3);
                font-size: 12px;
            }

            .demo-label {
                position: absolute;
                bottom: 6px; right: 6px;
                z-index: 2;
                padding: 2px 8px;
                border-radius: 999px;
                background: rgba(0, 180, 216, 0.15);
                color: var(--accent);
                font-size: 12px;
                border: 1px solid rgba(0, 180, 216, 0.3);
            }

            /* === FLOATING TOOLBAR === */
            .mask-floating-toolbar {
                position: fixed;
                bottom: 12px;
                left: 50%;
                z-index: 42;
                display: flex;
                flex-wrap: wrap;
                gap: 4px;
                padding: 5px;
                border: 1px solid var(--border);
                border-radius: var(--radius);
                background: rgba(255, 255, 255, 0.9);
                backdrop-filter: blur(16px);
                box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
                transform: translateX(-50%);
            }

            .mask-floating-toolbar[hidden], .float-tool-context[hidden], .float-control[hidden] { display: none !important; }

            .float-tool-group, .float-tool-context, .float-control { display: flex; align-items: center; gap: 4px; }

            .float-tool-button {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                gap: 3px;
                min-width: 32px;
                min-height: 30px;
                padding: 4px 7px;
                border: 1px solid transparent;
                border-radius: 4px;
                background: transparent;
                color: var(--text-2);
                font-size: 13px;
                cursor: pointer;
                transition: all 0.15s;
            }

            .float-tool-button:hover { border-color: var(--border); background: var(--bg-hover); color: var(--text); }
            .float-tool-button.active { border-color: var(--accent); background: rgba(0, 180, 216, 0.12); color: var(--accent); }

            .float-tool-icon { font-family: "Cascadia Code", monospace; font-size: 15px; }
            .float-tool-divider { width: 1px; height: 22px; background: var(--border); }

            .float-transform-readout {
                min-width: 64px;
                color: var(--text-3);
                font-family: "Cascadia Code", monospace;
                font-size: 12px;
                text-align: center;
            }

            .float-tool-context {
                min-height: 30px;
                padding: 2px 4px;
                border-radius: 4px;
                background: var(--bg-input);
            }

            .float-control > span { color: var(--text-3); font-size: 12px; white-space: nowrap; }
            .float-control input[type="range"] { width: 72px; accent-color: var(--accent); }
            .float-control output { min-width: 22px; color: var(--accent); font-family: "Cascadia Code", monospace; font-size: 12px; text-align: center; }

            .float-text-input {
                width: 100px;
                height: 26px;
                padding: 0 6px;
                border: 1px solid var(--border);
                border-radius: 4px;
                background: var(--bg-input);
                color: var(--text);
                font-size: 13px;
            }
            .float-text-input:focus { border-color: var(--accent); outline: none; }

            .float-select {
                max-width: 84px;
                height: 26px;
                padding: 0 4px;
                border: 1px solid var(--border);
                border-radius: 4px;
                background: var(--bg-input);
                color: var(--text);
                font-size: 12px;
            }

            .float-color-input {
                width: 26px;
                height: 26px;
                border: 1px solid var(--border);
                border-radius: 4px;
                background: transparent;
                cursor: pointer;
            }