*,:before,:after{box-sizing:border-box}:root{--sans:system-ui, "Segoe UI", Roboto, sans-serif}body{font-family:var(--sans);color:#333;-webkit-font-smoothing:antialiased;background:#f5f7fa;margin:0;font-size:16px;line-height:1.5}#root{min-height:100svh}h1,h2,h3{font-family:var(--sans);color:#222}.pdf-overlay{z-index:150;background:#0009;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.pdf-modal{background:#fff;border-radius:16px;flex-direction:column;width:95vw;max-height:95vh;display:flex;overflow:hidden;box-shadow:0 8px 40px #0000004d}.pdf-toolbar{background:#fafafa;border-bottom:1px solid #e0e0e0;flex-shrink:0;justify-content:space-between;align-items:center;padding:10px 16px;display:flex}.pdf-close-btn{cursor:pointer;color:#555;background:#f0f0f0;border:none;border-radius:8px;padding:8px 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