/* --- 3D Laboratory --- */
.lab-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

@media (min-width: 768px) {
    .lab-container {
        flex-direction: row;
        align-items: flex-start;
    }
}

.lab-controls {
    flex: 1;
    background-color: var(--bg-body);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: 4px 4px 0 rgba(0,0,0,0.05);
}

.lab-controls h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-lab, .btn-style {
    display: block;
    width: 100%;
    padding: 0.8rem;
    margin-bottom: 0.5rem;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    text-align: left;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-lab:hover, .btn-style:hover {
    background-color: #f1f5f9;
    border-color: var(--primary-color);
}

.btn-lab.active, .btn-style.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 2px 2px 0 var(--border-color);
    transform: translate(-1px, -1px);
}

.btn-style {
    display: inline-block;
    width: auto;
    margin-right: 0.5rem;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

.mol-viewer {
    flex: 3;
    height: 500px;
    background-color: #f0f0f0; /* Placeholder color before load */
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* Canvas inside viewer needs to be block to avoid scrollbars */
.mol-viewer canvas {
    display: block;
}