/* Space Tree Component Styles */

.space-tree-container {
    padding: var(--spacing-lg);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.space-tree-toolbar {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    flex-wrap: wrap;
}

.space-tree-content {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.space-tree {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--spacing-md);
}

.space-node {
    margin-bottom: var(--spacing-xs);
}

.space-node-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    border-radius: 4px;
    transition: background-color var(--transition);
}

.space-node-header:hover {
    background: var(--background);
}

.space-node-header i {
    color: var(--accent);
    width: 20px;
    text-align: center;
}

.space-name {
    flex: 1;
    font-weight: 500;
    color: var(--text-primary);
}

.tree-node {
    margin-bottom: var(--spacing-xs);
}

.tree-node-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    border-radius: 4px;
    transition: background-color var(--transition);
}

.tree-node-header:hover {
    background: var(--background);
}

.tree-node-toggle {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.75rem;
    transition: transform var(--transition);
}

.tree-node-toggle.expanded {
    transform: rotate(90deg);
}

.tree-node-icon {
    color: var(--accent);
    width: 20px;
    text-align: center;
}

.tree-node-label {
    flex: 1;
    font-weight: 500;
    color: var(--text-primary);
}

.tree-node-children {
    margin-left: var(--spacing-lg);
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--border);
    margin-top: var(--spacing-xs);
}

.tree-node-leaf {
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: calc(var(--spacing-lg) + var(--spacing-md));
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-radius: 4px;
    transition: background-color var(--transition);
}

.tree-node-leaf:hover {
    background: var(--background);
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.875rem;
    transition: all var(--transition);
}

.icon-btn:hover {
    background: var(--background);
    color: var(--accent);
}

.space-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    max-width: 600px;
    margin: 0 auto;
}

.space-form h2 {
    margin: 0 0 var(--spacing-lg) 0;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: var(--font-family);
    font-size: 0.875rem;
    background: var(--surface);
    color: var(--text-primary);
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.btn-primary, .btn-secondary {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: 4px;
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--text-secondary);
    color: white;
}

.space-actions {
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition);
}

.tree-node-header:hover .space-actions {
    opacity: 1;
}

.space-action-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.875rem;
    transition: all var(--transition);
}

.space-action-btn:hover {
    background: var(--background);
    color: var(--accent);
}

.empty-state, .error-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.empty-state i, .error-state i {
    display: block;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
    font-size: 3rem;
}

.empty-state h3, .error-state h3 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
    font-size: 1.25rem;
}

.empty-state p, .error-state p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.error-state {
    color: var(--error);
}

.error-state i {
    color: var(--error);
}

/* Responsive */
@media (max-width: 768px) {
    .space-tree-toolbar {
        flex-direction: column;
    }

    .tree-node-children {
        margin-left: var(--spacing-md);
    }
}