.reg-reader{--paper:#f7f5f0;--paper-panel:#fff;--ink:#1e2422;--ink-soft:#4b544f;--line:#d9d3c4;--accent:#2f5d50;--accent-soft:#e4ece8;--tag:#8a6d3b;--serif:var(--font-source-serif), "Iowan Old Style", Georgia, serif;--sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--mono:var(--font-ibm-plex-mono), "SF Mono", Consolas, monospace;background:var(--paper);color:var(--ink);font-family:var(--serif);border-top:1px solid var(--line);align-items:flex-start;font-size:16px;line-height:1.55;display:flex}.reg-reader *{box-sizing:border-box}.reg-reader #sidebar{background:var(--paper-panel);border-right:1px solid var(--line);width:320px;min-width:320px;height:calc(100vh - 66px);font-family:var(--sans);padding:22px 18px 60px;position:sticky;top:66px;overflow-y:auto}.reg-reader #sidebar-header{margin-bottom:14px}.reg-reader #sidebar-header 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a.xref-method:after{content:"M";font-family:var(--sans);vertical-align:super;margin-left:1px;font-size:.62em;font-weight:600;line-height:1;display:inline-block}.reg-reader .contains-link{margin-right:4px}.reg-reader #backdrop{z-index:100;background:#141a1673;justify-content:center;align-items:center;padding:24px;display:none;position:fixed;inset:0}.reg-reader #backdrop.show{display:flex}.reg-reader #popup{overflow-wrap:anywhere;border:1px solid var(--line);background:#fffdf9;border-radius:10px;width:100%;max-width:620px;max-height:80vh;overflow-y:auto;box-shadow:0 24px 60px #0a0f0c59}.reg-reader #popup-head{border-bottom:1px solid var(--line);background:#fffdf9;justify-content:space-between;align-items:flex-start;gap:12px;padding:16px 20px;display:flex;position:sticky;top:0}.reg-reader #popup-head-text{font-family:var(--sans)}.reg-reader #popup-eyebrow{font-family:var(--mono);color:var(--tag);letter-spacing:.02em;overflow-wrap:anywhere;font-size:11px}.reg-reader 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