.lab-shell,.lab-context-banner{max-width:1400px;margin:0 auto;padding:22px 24px;color:var(--ink)}
.lab-heading,.lab-data-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.lab-heading h1{font-size:clamp(24px,3vw,36px);font-weight:500;margin:8px 0 16px;letter-spacing:-.03em}
.lab-heading a,.lab-context-banner a{min-height:44px;display:inline-flex;align-items:center;color:var(--green)}
.lab-eyebrow,.lab-scope,#lab-record-status{font-size:13px;line-height:1.8;color:var(--muted)}
.lab-eyebrow{letter-spacing:.12em;margin:0}.lab-views{display:flex;gap:8px;border-bottom:1px solid var(--line);padding:0 0 12px;margin:10px 0 22px}
.lab-views button{min-height:44px;padding:10px 22px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--muted);font:inherit}
.lab-views button[aria-pressed=true]{background:#e1e8e1;color:var(--green)}
.lab-data{background:#fafbf7;border:1px solid var(--line);padding:24px;border-radius:8px;min-width:0}
.lab-data h2{font-size:18px;font-weight:500}.lab-data p{font-size:13px;line-height:1.8}.lab-data summary{cursor:pointer;min-height:44px;padding:12px 0;font-size:13px}.lab-data pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;line-height:1.8}
.lab-data-heading button,.lab-goals button{border:1px solid var(--line);border-radius:5px;background:transparent;color:var(--green);font:inherit;min-height:44px;padding:10px 16px;text-align:left;cursor:pointer}
.lab-goals{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:18px 0}.lab-goals button{padding:16px}.lab-goals strong,.lab-goals span{display:block}.lab-goals strong{font-weight:500;font-size:15px}.lab-goals span{font-size:13px;line-height:1.7;color:var(--muted);margin-top:8px}.lab-goals button:first-child{background:var(--green);color:#fff}.lab-goals button:first-child span{color:#e1e8e1}.lab-data button:disabled{opacity:.55;cursor:default}
.lab-context-banner{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:13px;padding-block:8px;border-bottom:1px solid var(--line)}
.lab-shell[hidden],.lab-context-banner[hidden],#lab-result-empty[hidden]{display:none}
.lab-page[data-lab-view=data] .content-layout,.lab-page[data-lab-view=data] .lab-context-banner{display:none}
.lab-page:not([data-lab-view=data]) .lab-data{display:none}
.lab-page[data-lab-view=result] .conversation,.lab-page[data-lab-view=result] .context-panel{display:none}
.lab-page[data-lab-view=result] .content-layout{display:block}.lab-page[data-lab-view=result] .task-workspace{position:relative;top:auto;max-height:none;width:100%;border:0}
#lab-result-empty{padding:20px 24px;max-width:1400px;margin:auto}
.lab-page .page-actions{position:relative;top:auto}
@media(max-width:640px){.lab-shell{padding:16px}.lab-data{padding:16px}.lab-goals{grid-template-columns:1fr}.lab-heading{gap:4px}.lab-heading h1{font-size:25px}.lab-context-banner{padding:8px 16px;flex-wrap:wrap}.lab-page .task-workspace{position:relative;top:auto;max-height:none}.lab-page[data-lab-view=nur] .content-layout{display:block}.lab-page[data-lab-view=nur] .task-workspace{display:none}.lab-page[data-lab-view=nur] .conversation{display:block}.lab-views button{flex:1;padding:8px 14px}}
@media(prefers-reduced-motion:no-preference){.lab-views button,.lab-goals button{transition:background-color .16s ease,border-color .16s ease}.lab-goals button:not(:disabled):hover{border-color:var(--green)}}

/* Lab cases keep the same Nur/Studio shell. */
.lab-destinations{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;justify-content:flex-end}.lab-destinations a{display:inline-flex;align-items:center;min-height:44px;white-space:nowrap;text-underline-offset:4px}
@media(max-width:480px){.lab-destinations{gap:0 12px;font-size:12px;justify-content:flex-start}}