:root{color-scheme:light;--ink:#16201c;--muted:#61706a;--line:#d4ddd8;--paper:#f7f8f5;--panel:#ffffff;--mint:#2f6f5e;--blue:#255f92;--amber:#ad6c22;--red:#a33b35}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.68}.studio-shell{min-height:100vh;padding:18px}.studio-topbar{justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:0 0 14px}.product-mark,.studio-topbar{display:flex;align-items:center}.product-mark{gap:10px;color:var(--ink);font-size:18px;font-weight:700}.status-strip{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:12px;font-weight:700}.status-strip span{border:1px solid var(--line);border-radius:4px;background:#fff;padding:6px 8px}.studio-tabs{display:inline-flex;gap:4px;margin-top:14px;border:1px solid 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transparent;border-radius:6px}.primary-action{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;height:42px;background:var(--mint);color:white;font-weight:700}.primary-action:hover:not(:disabled){background:#255d4f}.icon-button{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-color:var(--line);background:#fff;color:var(--ink)}.text-button{background:transparent;color:var(--blue);font-weight:700}.review-grid{display:grid;grid-template-columns:repeat(3,minmax(180px,1fr));grid-gap:12px;gap:12px}.review-frame{display:grid;grid-gap:6px;gap:6px}.stage-header{display:flex;min-height:34px;align-items:center;justify-content:space-between;gap:8px}.stage-actions{display:inline-flex;align-items:center;gap:6px}.stage-label{color:var(--muted);font-size:12px;font-weight:700;text-transform:uppercase}.stage-action{width:30px;height:30px}.image-stage{display:flex;aspect-ratio:1/1;min-height:220px;align-items:center;justify-content:center;overflow:hidden;border:1px 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