.conversation-lab{--conversation-ink:#172033;--conversation-muted:#667085;--conversation-line:#1720331a;--conversation-soft:#f6f8fb;--conversation-blue:#1769e0;--conversation-blue-soft:#eaf2ff;--conversation-green:#16794d;--conversation-green-soft:#eaf8f1;width:min(1460px,100%);min-height:calc(100vh - 72px);color:var(--conversation-ink);background:radial-gradient(circle at 88% 0,#53aeff24,#0000 28%),linear-gradient(#fbfcfe 0%,#f5f7fb 100%);margin:0 auto;padding:clamp(24px,4vw,56px) clamp(14px,3vw,42px) 72px}.conversation-lab__hero{justify-content:space-between;align-items:flex-end;gap:32px;max-width:1220px;margin:0 auto 28px;display:flex}.conversation-lab__eyebrow,.conversation-lab__section-kicker{color:var(--conversation-blue);letter-spacing:.12em;text-transform:uppercase;align-items:center;gap:7px;font-size:11px;font-weight:800;line-height:1.4;display:inline-flex}.conversation-lab__hero h1{color:var(--conversation-ink);letter-spacing:-.055em;margin:10px 0 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strong{color:var(--conversation-ink);font-size:12px}.conversation-lab__task-type{color:var(--conversation-blue);background:var(--conversation-blue-soft);border-radius:999px;padding:4px 7px;font-size:9px;font-weight:800}.conversation-lab__task-type--vocabulary{color:var(--conversation-green);background:var(--conversation-green-soft)}.conversation-lab__task-type--pronunciation{color:#986d16;background:#fff6dc}.conversation-lab__task-actions{flex:none;gap:5px;display:inline-flex}.conversation-lab__task-actions button,.conversation-lab__task-vocabulary button{border:1px solid var(--conversation-line);color:var(--conversation-muted);white-space:nowrap;background:0 0;border-radius:999px;align-items:center;gap:5px;padding:5px 8px;font-size:10px;font-weight:750;display:inline-flex}.conversation-lab__task-actions button:hover,.conversation-lab__task-vocabulary button:hover{color:var(--conversation-blue);background:var(--conversation-blue-soft);border-color:#1769e040}.conversation-lab__task-prompt{color:var(--conversation-muted);margin-top:8px;font-size:11px;line-height:1.55}.conversation-lab__task-phrase{color:#56716a;align-items:center;gap:7px;margin-top:8px;font-size:12px;line-height:1.55;display:flex}.conversation-lab__task-phrase strong{color:var(--conversation-green)}.conversation-lab__task-explanation{color:var(--conversation-muted);margin-top:6px;font-size:10px;line-height:1.5;display:block}.conversation-lab__task-vocabulary{border-top:1px solid var(--conversation-line);justify-content:space-between;align-items:center;gap:10px;margin-top:9px;padding-top:9px;display:flex}.conversation-lab__task-vocabulary>div{gap:3px;min-width:0;display:grid}.conversation-lab__task-vocabulary>div>strong{color:var(--conversation-ink);font-size:12px}.conversation-lab__task-vocabulary small{color:var(--conversation-muted);text-overflow:ellipsis;white-space:nowrap;font-size:10px;overflow:hidden}.conversation-lab__task-vocabulary button{color:var(--conversation-green);background:var(--conversation-green-soft)}.conversation-lab__review-actions{justify-content:flex-end;margin-top:18px}.conversation-lab__secondary-action{border:1px solid var(--conversation-line);color:var(--conversation-ink);background:#fff}.conversation-lab__secondary-action:hover{color:var(--conversation-blue);border-color:#1769e040}.is-spinning{animation:.9s linear infinite conversation-lab-spin}@keyframes conversation-lab-spin{to{transform:rotate(360deg)}}[data-theme=black] .conversation-lab{--conversation-ink:#f2f4f7;--conversation-muted:#a7b0bf;--conversation-line:#ffffff21;--conversation-soft:#1c2028;--conversation-blue-soft:#4389ff29;--conversation-green-soft:#16794d33;background:#0f1116}[data-theme=black] .conversation-lab__sidebar,[data-theme=black] 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