.nvl-lab {
    max-width: 1100px;
    margin: 40px auto;
    font-family: system-ui, -apple-system, sans-serif;
    padding: 20px;
}
.nvl-header h1 {
    margin-bottom: 4px;
}
.nvl-controls {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px;
    margin: 20px 0;
}
.nvl-providers label {
    display: inline-block;
    margin-right: 18px;
    margin-bottom: 10px;
}
.nvl-actions {
    margin-top: 16px;
}
.nvl-btn {
    padding: 10px 18px;
    border-radius: 8px;
    border: 1px solid #ccc;
    background: #fff;
    cursor: pointer;
    margin-right: 8px;
}
.nvl-btn-primary {
    background: #111;
    color: #fff;
    border-color: #111;
}
.nvl-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.nvl-visualizer {
    margin: 24px 0;
    text-align: center;
}
#nvl-canvas {
    width: 100%;
    max-width: 800px;
    height: 120px;
    background: #111;
    border-radius: 8px;
}
#nvl-status {
    margin-top: 8px;
    font-size: 14px;
    color: #555;
}
.nvl-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}
.nvl-result-card {
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 16px;
    background: #fff;
}
.nvl-result-card h4 {
    margin: 0 0 8px 0;
}
.nvl-partial {
    color: #666;
    font-style: italic;
}
.nvl-final {
    font-weight: 600;
    margin-top: 6px;
}
#nvl-ground-truth {
    width: 100%;
    min-height: 80px;
    border-radius: 8px;
    border: 1px solid #ccc;
    padding: 12px;
}