/* RX Focus Reading v0.2: opt-in overlay only. No global article styles when closed. */
.rxf-entry{display:inline-flex;align-items:center;min-height:40px;margin:0 0 18px 10px;padding:8px 14px;border:1px solid #8ba9b5;border-radius:24px;background:#fff;color:#124f5b;font:600 14px/1.3 system-ui,sans-serif;cursor:pointer}
.rxf-entry:focus-visible,.rxf-button:focus-visible,.rxf-settings summary:focus-visible,.rxf-select:focus-visible{outline:3px solid #087e87;outline-offset:3px}
html.rxf-is-open,body.rxf-is-open{overflow:hidden!important}
.rxf-overlay{--rxf-size:20px;--rxf-leading:1.75;position:fixed;inset:0;z-index:2147483646;overflow:auto;overscroll-behavior:contain;background:#fff;color:#142339;font-family:system-ui,-apple-system,'Segoe UI',Arial,sans-serif;isolation:isolate}
.rxf-overlay[data-rxf-theme="warm"]{background:#f9f2e4;color:#28231b}
.rxf-overlay[data-rxf-theme="dark"]{background:#171d27;color:#f4f6fa}
.rxf-shell{width:100%;min-height:100%;padding:18px clamp(16px,3vw,36px) 72px;box-sizing:border-box}
.rxf-top{position:sticky;top:0;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 -8px 28px;padding:10px 8px;border-bottom:1px solid rgba(125,145,155,.24);background:inherit}
.rxf-brand{font:700 14px system-ui,sans-serif;letter-spacing:.03em}
.rxf-article{max-width:830px;margin:0 auto}
.rxf-title{font:750 clamp(29px,3.2vw,46px)/1.18 system-ui,sans-serif!important;color:inherit!important;margin:0 0 30px!important;overflow-wrap:anywhere}
.rxf-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:0 0 12px}
.rxf-control-label{margin-right:5px;font-size:14px}
.rxf-button{appearance:none;background:transparent;color:inherit;border:1px solid #a7b7c7;border-radius:18px;padding:8px 13px;min-height:40px;cursor:pointer;font:650 14px system-ui,sans-serif}
.rxf-exit{background:#edf7f8;color:#07525c;border-color:#91bec5}
.rxf-size-label{font:500 13px system-ui,sans-serif;opacity:.7}
.rxf-settings{margin-bottom:24px;border-bottom:1px solid rgba(125,145,155,.2);padding-bottom:12px;font:15px system-ui,sans-serif}
.rxf-settings summary{cursor:pointer;display:list-item;margin-left:15px;width:fit-content;padding:8px}
.rxf-settings-inner{padding:14px 0;display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.rxf-select{margin-left:8px;min-height:40px;padding:5px;color:#172b3c;background:#fff;border:1px solid #94a7b6;border-radius:8px}
.rxf-theme-options{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.rxf-theme-options .rxf-button[aria-pressed="true"]{background:#147c89;color:white;border-color:#147c89}
.rxf-content{font-size:var(--rxf-size);line-height:var(--rxf-leading);overflow-wrap:break-word;color:inherit}
.rxf-content :is(p,li,blockquote,td,th){font-size:1em!important;line-height:var(--rxf-leading)!important;color:inherit}
.rxf-content :is(h2,h3,h4,h5,h6){color:inherit!important;margin:1.35em 0 .6em;font-weight:700}
.rxf-content h2{font-size:1.4em!important}.rxf-content h3{font-size:1.2em!important}
.rxf-content :is(img,video,iframe,svg,table){max-width:100%;height:auto}
.rxf-content table{display:block;overflow-x:auto;width:max-content;max-width:100%}
.rxf-content a{color:#086fb4;text-decoration:underline}
.rxf-overlay[data-rxf-theme="dark"] .rxf-content a{color:#9dd7ff}
.rxf-overlay[data-rxf-theme="dark"] .rxf-exit{background:#243947;color:#f4f6fa}
@media(max-width:600px){.rxf-shell{padding:12px 16px 55px}.rxf-top{margin-bottom:18px}.rxf-control-label{width:100%}.rxf-article{max-width:100%}}
@media print{.rxf-overlay{display:none!important}html.rxf-is-open,body.rxf-is-open{overflow:visible!important}}