.symbol-editor-shell {
    position: relative;
    min-height: calc(100vh - 140px);
    padding: 0;
}

.symbol-editor-root {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 12px;
    box-sizing: border-box;
}

.symbol-editor-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--lb-bg-elevated);
    border: 1px solid var(--lb-border-default);
    border-radius: var(--lb-radius-md);
}

.symbol-editor-toolbar-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.symbol-editor-toolbar-separator {
    width: 1px;
    height: 20px;
    background: var(--lb-border-default);
}

.symbol-editor-toolbar-spacer {
    flex: 1;
}

.symbol-editor-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--lb-text-muted);
    font-size: var(--lb-font-size-xs);
}

.symbol-editor-grid-select {
    padding: 2px 6px;
    font-size: var(--lb-font-size-xs);
    min-width: 60px;
}

.symbol-editor-toolbar-group [data-action="select-tool"].active {
    background: var(--lb-accent-primary);
    color: var(--lb-bg-surface);
    border-color: var(--lb-accent-primary);
}

.symbol-editor-status {
    color: var(--lb-text-muted);
    font-size: var(--lb-font-size-xs);
}

.symbol-editor-body {
    display: grid;
    grid-template-columns: 240px 1fr 280px;
    gap: 12px;
    flex: 1;
    min-height: 480px;
}

.symbol-editor-panel {
    background: var(--lb-bg-elevated);
    border: 1px solid var(--lb-border-default);
    border-radius: var(--lb-radius-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.symbol-editor-panel-header {
    padding: 8px 12px;
    font-size: var(--lb-font-size-xs);
    text-transform: uppercase;
    color: var(--lb-text-muted);
    border-bottom: 1px solid var(--lb-border-default);
}

.symbol-editor-panel-body {
    padding: 10px 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.symbol-editor-stage {
    background: var(--lb-bg-surface);
    border: 1px solid var(--lb-border-default);
    border-radius: var(--lb-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    min-height: 360px;
    overflow: hidden;
    position: relative;
}

.symbol-editor-canvas-svg {
    width: 100%;
    max-width: 720px;
    height: auto;
    aspect-ratio: 1 / 1;
    border-radius: var(--lb-radius-md);
    display: block;
    overflow: visible;
}

.symbol-editor-grid-bg {
    fill: transparent;
    stroke: rgba(255, 255, 255, 0.08);
    stroke-width: 1;
    stroke-dasharray: 6 6;
}

.symbol-editor-shape.selected {
    filter: drop-shadow(0 0 6px rgba(212, 175, 55, 0.5));
}

.symbol-editor-handle {
    fill: var(--lb-accent-primary);
    stroke: var(--lb-bg-surface);
    stroke-width: 2;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.5));
}

.symbol-editor-handle:hover {
    fill: #fff;
}

.symbol-editor-poly-start {
    fill: #4ade80;
    stroke: var(--lb-bg-surface);
    stroke-width: 2;
    cursor: pointer;
}

.symbol-editor-poly-point {
    fill: var(--lb-accent-primary);
    stroke: var(--lb-bg-surface);
    stroke-width: 2;
}

.symbol-editor-section {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.symbol-editor-divider {
    height: 1px;
    background: var(--lb-border-default);
}

.symbol-editor-label {
    font-size: var(--lb-font-size-xs);
    color: var(--lb-text-muted);
    text-transform: uppercase;
}

.symbol-editor-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.symbol-editor-list-item {
    background: var(--lb-bg-input);
    border: 1px solid var(--lb-border-default);
    border-radius: var(--lb-radius-sm);
    padding: 8px;
    text-align: left;
    font-size: var(--lb-font-size-xs);
    color: var(--lb-text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.symbol-editor-list-item.selected {
    border-color: var(--lb-accent-primary);
    background: rgba(212, 175, 55, 0.12);
}

.symbol-editor-meta {
    font-size: 10px;
    text-transform: uppercase;
    color: var(--lb-text-muted);
}

.symbol-editor-empty {
    font-size: var(--lb-font-size-xs);
    color: var(--lb-text-muted);
}

.symbol-editor-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
}

.symbol-editor-textarea {
    min-height: 90px;
    resize: vertical;
}

.symbol-editor-color {
    width: 100%;
    height: 32px;
    border-radius: var(--lb-radius-sm);
    border: 1px solid var(--lb-border-default);
    background: transparent;
}

.symbol-editor-btn-row {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.symbol-editor-input-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.symbol-editor-input-label {
    font-size: 10px;
    color: var(--lb-text-muted);
    text-transform: uppercase;
}

.symbol-editor-preview {
    background: var(--lb-bg-elevated);
    border: 1px solid var(--lb-border-default);
    border-radius: var(--lb-radius-md);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.symbol-editor-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.symbol-editor-preview-token {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--lb-font-size-xs);
    color: var(--lb-text-muted);
}

.symbol-editor-preview-token code {
    background: var(--lb-bg-input);
    padding: 2px 6px;
    border-radius: var(--lb-radius-sm);
    color: var(--lb-text-primary);
}

.symbol-editor-preview-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.symbol-editor-preview-output {
    min-height: 120px;
    padding: 8px;
    border: 1px solid var(--lb-border-default);
    border-radius: var(--lb-radius-sm);
    background: var(--lb-bg-input);
    color: var(--lb-text-primary);
    line-height: 1.5;
    word-break: break-word;
}

.symbol-inline {
    display: inline-flex;
    align-items: baseline;
}

.symbol-inline-svg {
    display: inline-block;
}

@media (max-width: 1200px) {
    .symbol-editor-body {
        grid-template-columns: 220px 1fr 240px;
    }
}

@media (max-width: 992px) {
    .symbol-editor-shell {
        min-height: auto;
    }

    .symbol-editor-body {
        grid-template-columns: 1fr;
    }

    .symbol-editor-stage {
        order: 1;
    }
}