.designer-container { display: flex; height: 100vh; width: 100vw; }
.panel-header { padding: 12px 16px; font-weight: bold; font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--accent-gold); border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; background: #13141a; }
.viewport-container { flex: 1; background: #08080a; position: relative; display: flex; flex-direction: column; }
.viewport-toolbar { height: 48px; background: var(--bg-panel); border-bottom: 1px solid var(--border-color); display: flex; align-items: center; padding: 0 16px; justify-content: space-between; z-index: 5; }
.tool-group { display: flex; gap: 8px; align-items: center; }
.zoom-controls { display: flex; align-items: center; gap: 4px; background: var(--bg-card); padding: 4px 8px; border-radius: 6px; border: 1px solid var(--border-color); }
.btn-zoom { background: var(--bg-panel); border: 1px solid var(--border-color); color: var(--text-primary); width: 28px; height: 28px; border-radius: 4px; cursor: pointer; font-size: 16px; font-weight: bold; display: flex; align-items: center; justify-content: center; transition: all 0.2s; }
.btn-zoom:hover { border-color: var(--accent-gold); color: var(--accent-gold); background: rgba(255, 215, 0, 0.08); }
.zoom-indicator { font-size: 12px; font-weight: bold; color: var(--accent-gold); min-width: 45px; text-align: center; user-select: none; }
.btn-tool { background: var(--bg-card); border: 1px solid var(--border-color); color: #fff; padding: 6px 14px; border-radius: 4px; cursor: pointer; font-size: 12px; font-weight: 500; transition: all 0.2s; }
.btn-tool:hover, .btn-tool.active { border-color: var(--accent-gold); color: var(--accent-gold); }
.btn-tool.btn-primary { background: var(--accent-gold); color: #000; font-weight: bold; border: none; }
.canvas-wrapper { flex: 1; position: relative; overflow: hidden; display: flex; justify-content: center; align-items: center; background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 0); background-size: 20px 20px; cursor: default; }
.canvas-wrapper.panning { cursor: grab !important; }
.viewport-transform-layer { position: absolute; top: 50%; left: 50%; width: 0; height: 0; transform-origin: 0 0; pointer-events: none; z-index: 2; }
#stageCanvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; pointer-events: auto; }
.scene-3d-overlay { position: absolute; top: 0; left: 0; width: 0; height: 0; pointer-events: none; }

.right-sidebar { width: 360px; background: var(--bg-panel); border-left: 1px solid var(--border-color); display: flex; flex-direction: column; overflow-y: auto; z-index: 10; }
.equipment-library { padding: 12px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; border-bottom: 1px solid var(--border-color); background: var(--bg-panel); }
.btn-add-item { background: var(--bg-card); border: 1px solid var(--border-color); color: var(--text-primary); padding: 10px 4px; border-radius: 6px; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: 11px; transition: all 0.2s ease; text-align: center; }
.btn-add-item:hover { border-color: var(--accent-gold); background: rgba(255, 215, 0, 0.08); color: var(--accent-gold); }
.property-group { padding: 16px; border-bottom: 1px solid var(--border-color); }
.property-title { font-size: 12px; font-weight: bold; color: var(--accent-gold); margin-bottom: 12px; text-transform: uppercase; }
.control-row { margin-bottom: 12px; display: flex; flex-direction: column; gap: 6px; }
.control-row label { font-size: 12px; color: var(--text-muted); display: flex; justify-content: space-between; }
.control-row input, .control-row select { background: var(--bg-card); border: 1px solid var(--border-color); color: #fff; padding: 8px 10px; border-radius: 5px; font-size: 13px; outline: none; }
.control-row input:focus, .control-row select:focus { border-color: var(--accent-gold); }
.control-row input[type="range"] { accent-color: var(--accent-gold); cursor: pointer; }
.dimension-inline-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; background: var(--bg-card); padding: 8px; border-radius: 6px; border: 1px solid var(--border-color); }
.dimension-item { display: flex; flex-direction: column; gap: 4px; }
.dimension-item label { font-size: 11px; color: var(--text-muted); }
.dimension-item input { width: 100%; padding: 6px 4px; text-align: center; font-size: 12px; background: var(--bg-panel); border: 1px solid var(--border-color); color: #fff; border-radius: 4px; }
.compact-inline-row { display: flex; align-items: center; justify-content: space-between; gap: 6px; background: var(--bg-card); padding: 8px 10px; border-radius: 6px; border: 1px solid var(--border-color); }
.compact-item { display: flex; align-items: center; gap: 4px; font-size: 11px; color: var(--text-muted); cursor: pointer; }
.slider-row { display: flex; align-items: center; gap: 8px; }
.slider-row input[type="range"] { flex: 1; accent-color: var(--accent-gold); }
.btn-reset-icon { background: transparent; border: none; color: #888; cursor: pointer; padding: 2px; border-radius: 4px; }
.btn-reset-icon svg { width: 14px; height: 14px; fill: currentColor; }
.file-btn { display: block; width: 100%; padding: 8px; background: var(--bg-card); border: 1px dashed var(--accent-gold); color: var(--accent-gold); text-align: center; border-radius: 6px; cursor: pointer; font-size: 12px; }
input[type="file"] { display: none; }
.layer-manager { display: flex; flex-direction: column; padding: 10px; }
.layer-list { list-style: none; }
.layer-item { background: var(--bg-card); border: 1px solid var(--border-color); padding: 8px 10px; border-radius: 6px; margin-bottom: 6px; display: flex; align-items: center; justify-content: space-between; cursor: grab; font-size: 12px; }
.layer-item:active { cursor: grabbing; }
.layer-item:hover { border-color: #555; }
.layer-item.active { border-color: var(--accent-gold); background: rgba(255, 215, 0, 0.12); font-weight: bold; }
.layer-item.dragging { opacity: 0.4; border: 1px dashed var(--accent-gold); }
.layer-item.drag-over { border-top: 2px solid var(--accent-gold); }
.drag-handle { margin-right: 8px; color: var(--text-muted); cursor: grab; font-size: 13px; }
.layer-info { display: flex; align-items: center; flex: 1; overflow: hidden; }
.layer-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.layer-controls { display: flex; gap: 6px; align-items: center; }
.layer-controls button, .layer-controls span { cursor: pointer; opacity: 0.7; transition: opacity 0.2s; background: none; border: none; color: inherit; font-size: 11px; }
.layer-controls button:hover, .layer-controls span:hover { opacity: 1; color: var(--accent-gold); }
.compact-item input[type="color"] { width: 28px; height: 26px; border: none; background: transparent; cursor: pointer; padding: 0; }
.compact-item input[type="checkbox"] { accent-color: var(--accent-gold); cursor: pointer; transform: scale(1.1); }