.preview-mode-choice{background:#102b3a;gap:4px;padding:6px;display:flex}.preview-mode-choice button{min-height:44px;color:var(--paper);cursor:pointer;background:#17394b;border:1px solid #496578;border-radius:8px;flex:1;font:600 15px Barlow,sans-serif}.preview-mode-choice button[aria-pressed=true]{border-color:var(--brass);color:#142f40;background:var(--brass)}.preview-mode-choice button:focus-visible{outline:2px solid var(--brass);outline-offset:2px}.piece-preview-surface{container-type:size}.piece-preview .piece-preview-flat>.piece{width:min(62cqw,78cqh);max-width:none;max-height:78cqh}.store-stage[data-preview-mode=flat]{touch-action:pan-y}.store-stage.store-showcase[data-board=flat] .store-stage-flat{place-items:center;width:auto;display:grid;inset:8px;transform:none;-webkit-mask-image:none;mask-image:none;container-type:size}.store-stage.store-showcase[data-board=flat] .store-stage-flat .board-shell{width:min(100%,112.5cqh - 33.75px);max-width:none}