.material-group{display:block;margin:0;padding:0;border:0;border-radius:0;background:transparent}.material-group+.material-group{border-top:1px solid var(--border-subtle)}.material-group .group-title{display:flex;align-items:center;gap:var(--sp-2);width:100%;margin:0;padding:var(--sp-2) var(--sp-3);border:0;border-radius:var(--radius-md);background:transparent;color:var(--fg-secondary);font-family:inherit;font-size:var(--text-2xs);font-weight:var(--fw-semibold);line-height:var(--lh-tight);letter-spacing:var(--tracking-wider);text-transform:uppercase;text-align:left;cursor:pointer;transition:background var(--dur-fast) var(--ease-std),color var(--dur-fast) var(--ease-std)}#tab-material .controls-container.pd-stack{gap:0}.material-group .group-title:hover{background:var(--lift-2);color:var(--fg-primary)}.material-group .group-title[aria-expanded=true],.material-group .group-title:has(+.group-content:not(.hidden)){color:var(--fg-primary)}.material-group .group-title:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring);outline-offset:var(--focus-ring-offset)}.material-group .group-title .base-panel__title,.material-group .group-title .group-label{flex:1 1 auto;min-width:0}.material-group .group-title .base-icon{flex:0 0 auto;width:var(--icon-sm);height:var(--icon-sm);margin-left:auto;color:var(--fg-tertiary);transition:color var(--dur-fast) var(--ease-std)}.material-group .group-title:hover .base-icon{color:var(--fg-secondary)}.material-group .group-content{display:flex;flex-direction:column;gap:var(--sp-3);padding:0 var(--sp-3) var(--sp-3)}.material-group .group-content.hidden{display:none}.material-title-actions{display:flex;align-items:center;gap:var(--sp-2);flex:1 1 auto;min-width:0;width:100%}.material-title-actions .pick-material-btn{flex:0 0 auto;white-space:nowrap;width:132px;font-size:var(--text-xs)}.material-title-actions .base-well{flex:1 1 auto;min-width:0;padding-right:var(--sp-1)}.material-title-actions .material-name-input{flex:1 1 auto;min-width:0;margin:0}.material-title-actions .edit-btn{flex:0 0 auto;color:var(--fg-tertiary)}.material-title-actions .edit-btn .base-icon{color:inherit}.material-title-actions .edit-btn:hover:not(:disabled){color:var(--fg-primary)}.material-title-actions .pick-material-btn .base-icon{color:inherit}.material-title-actions .base-well>.material-name-input{height:100%;padding:0;border:0;border-radius:0;background:transparent;font-family:inherit}.material-title-actions .base-well:has(.material-name-input:not([readonly])){background:var(--bg-inset);background:var(--accent-soft-2);border-color:var(--accent-border)}.material-name-input:not([readonly]){color:var(--fg-primary)}