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.staged-state{grid-area:state;white-space:nowrap}}.preview-overlay{position:fixed;inset:0;z-index:60;background:rgba(11,37,69,.6);display:grid;place-items:center;padding:24px}.preview-box{width:min(1100px,100%);height:min(92vh,100%);background:#fff;border-radius:12px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.3)}.preview-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border-bottom:1px solid var(--border)}.preview-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;color:var(--brand)}.preview-body{flex:1 1;min-height:0;overflow:auto;background:#eef1f5;display:flex;flex-direction:column}.preview-frame{flex:1 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