/* Research guide, 2026-10-23. Additive: does not replace existing site styling. */
.rg-shell,.rg-guide{--rg-ink:#18383d;--rg-blue:#145db8;--rg-line:#d3dfdd;--rg-muted:#52686b;--rg-paper:#f3f7f5;color:var(--rg-ink);max-width:1180px;margin-inline:auto;padding:0 clamp(18px,4vw,46px) 64px;font:400 1.04rem/1.75 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;overflow-wrap:anywhere}
.rg-shell *, .rg-guide *{box-sizing:border-box}
.rg-shell a,.rg-guide a{color:var(--rg-blue);text-underline-offset:.18em;text-decoration-thickness:1px}
.rg-shell a:hover,.rg-guide a:hover{text-decoration:underline;text-decoration-thickness:2px}
.rg-shell :focus-visible,.rg-guide :focus-visible{outline:3px solid #1764c0;outline-offset:4px;border-radius:2px}
.rg-shell h1,.rg-guide h1{font-size:clamp(2.15rem,4.4vw,4rem);line-height:1.1;letter-spacing:-.035em;margin:.3em 0 .45em;max-width:18ch;color:var(--rg-ink)}
.rg-shell h2,.rg-guide h2{font-size:clamp(1.45rem,2.4vw,2rem);line-height:1.25;letter-spacing:-.015em;margin:0 0 .65em;color:var(--rg-ink)}
.rg-shell h3,.rg-guide h3{font-size:1.2rem;line-height:1.35;margin:.45em 0;color:var(--rg-ink)}
.rg-shell p,.rg-guide p{margin:.6em 0 1em}
.rg-shell>section,.rg-guide>.rg-section{margin-top:54px}
.rg-shell section[id],.rg-guide section[id]{scroll-margin-top:110px}
.rg-crumbs{display:flex;align-items:baseline;flex-wrap:wrap;gap:10px;font-size:.85rem;padding-block:24px 10px;color:var(--rg-muted)}
.rg-hero{padding:clamp(24px,5vw,60px) 0 30px;max-width:1000px}
.rg-kicker{font-size:.73rem;letter-spacing:.16em;font-weight:750;line-height:1.5;color:#426969;margin:0 0 14px!important}
.rg-lead{font-size:clamp(1.12rem,1.9vw,1.4rem);line-height:1.6;max-width:65ch;color:#3e5e63}
.rg-date{font-size:.86rem;color:var(--rg-muted)}
.rg-band{display:grid;grid-template-columns:1fr 1.35fr;gap:36px;background:#e8f1ed;border-block:1px solid #c4d8d2;padding:34px;border-radius:4px}
.rg-band>p{margin:0}
.rg-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rg-grid-two{grid-template-columns:repeat(2,minmax(0,1fr))}
.rg-card{padding:25px;border:1px solid var(--rg-line);border-radius:5px;background:#fff;min-width:0}
.rg-card>p{font-size:.97rem;line-height:1.72}
.rg-card>a{display:block;margin-top:14px;font-size:.94rem;font-weight:650}
.rg-number{font-size:.8rem;font-weight:750;letter-spacing:.12em;color:#66877c;display:block;margin-bottom:18px}
.rg-label{font-size:.67rem;font-weight:750;letter-spacing:.08em;line-height:1.6;display:inline-block;padding:4px 8px;background:#eaf0ed;color:#2b5b50;border-radius:3px;margin-bottom:8px}
.rg-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:20px}
.rg-heading h2{margin-bottom:0}
.rg-heading>a{font-size:.88rem;white-space:nowrap}
.rg-lab-card{background:#f7faf8;border-top:4px solid #538674;display:flex;flex-direction:column}
.rg-lab-card .rg-button{margin-top:auto;align-self:flex-start}
.rg-shell .rg-button,.rg-guide .rg-button{display:inline-block;background:#175fbd;color:white;padding:10px 17px;border:1px solid #175fbd;border-radius:4px;font-weight:650;font-size:.9rem;text-decoration:none}
.rg-shell .rg-button:hover,.rg-guide .rg-button:hover{background:#114b98;color:white;text-decoration:underline}
.rg-small{font-size:.84rem!important;color:var(--rg-muted)}
.rg-table-wrap{overflow-x:auto;border:1px solid var(--rg-line);border-radius:4px;background:white}
.rg-table-wrap table{border-collapse:collapse;width:100%;min-width:570px;line-height:1.6;text-align:start;font-size:.92rem}
.rg-table-wrap th,.rg-table-wrap td{padding:16px 18px;vertical-align:top;border-bottom:1px solid #dfe7e5;text-align:start}
.rg-table-wrap thead th{background:#eaf1ee;font-size:.83rem}
.rg-table-wrap tbody th{font-weight:650;min-width:160px}
.rg-table-wrap tr:last-child td,.rg-table-wrap tr:last-child th{border-bottom:0}
.rg-table-wrap tbody tr:nth-child(even){background:#f8faf9}
.rg-note{border-inline-start:4px solid #599287;background:var(--rg-paper);padding:28px 30px;border-radius:0 4px 4px 0}
.rg-note h2{font-size:1.35rem}
.rg-note p:last-child{margin-bottom:0}
.rg-template{background:#18383d;color:#eef7f2;padding:26px;border-radius:5px;white-space:pre-wrap;overflow-wrap:anywhere;font:400 .88rem/1.9 ui-monospace,SFMono-Regular,Consolas,monospace}
.rg-steps{counter-reset:rg-step;list-style:none;padding:0;display:grid;gap:18px}
.rg-steps>li{counter-increment:rg-step;position:relative;padding:22px 24px 22px 75px;border:1px solid var(--rg-line);border-radius:4px;background:#fff}
.rg-steps>li:before{content:counter(rg-step);position:absolute;inset-inline-start:23px;top:27px;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;color:white;background:#417a67;font-weight:650;font-size:.9rem}
.rg-steps p:last-child{margin-bottom:0}
.rg-equation{background:#edf3f5;padding:25px;border-inline-start:3px solid #57828e;margin:24px 0;font:500 clamp(.98rem,1.8vw,1.2rem)/1.9 ui-serif,Georgia,serif;overflow-wrap:anywhere}
.rg-publications{padding-inline-start:24px}
.rg-publications>li{padding:16px 8px 22px;border-bottom:1px solid var(--rg-line)}
.rg-publications h3{font-size:1.1rem}
.rg-source-list>li{margin-bottom:16px}
[dir="rtl"].rg-shell,[dir="rtl"] .rg-shell{line-height:1.95}
[dir="rtl"].rg-shell h1{max-width:24ch;letter-spacing:0;line-height:1.35}
[dir="rtl"].rg-shell h2,[dir="rtl"].rg-shell h3{letter-spacing:0;line-height:1.5}
[dir="rtl"].rg-shell .rg-kicker{letter-spacing:0}
@media(max-width:850px){.rg-grid{grid-template-columns:1fr 1fr}.rg-grid:not(.rg-grid-two)>.rg-card:last-child{grid-column:1/-1}.rg-band{gap:20px;grid-template-columns:1fr}.rg-heading{align-items:start;flex-direction:column;gap:12px}}
@media(max-width:600px){.rg-grid,.rg-grid-two{grid-template-columns:1fr}.rg-grid:not(.rg-grid-two)>.rg-card:last-child{grid-column:auto}.rg-shell>section,.rg-guide>.rg-section{margin-top:38px}.rg-card{padding:22px}.rg-band{padding:24px}.rg-note{padding:23px}.rg-table-wrap th,.rg-table-wrap td{padding:13px}.rg-hero{padding-top:30px}.rg-steps>li{padding:19px 19px 19px 65px}.rg-steps>li:before{inset-inline-start:18px}.rg-shell h1,.rg-guide h1{max-width:none}.rg-heading>a{white-space:normal}}
@media print{.rg-shell,.rg-guide{max-width:none;padding:0;color:#000;font-size:10pt}.rg-shell h1,.rg-guide h1{font-size:27pt}.rg-shell h2,.rg-guide h2{font-size:17pt}.rg-shell a,.rg-guide a{color:#000;text-decoration:underline}.rg-card,.rg-note,.rg-band,.rg-template{background:#fff;color:#000;box-shadow:none}.rg-grid,.rg-grid-two{display:block}.rg-card{margin-bottom:12pt;break-inside:avoid}.rg-band{display:block}.rg-table-wrap{overflow:visible}.rg-table-wrap table{min-width:0;font-size:9pt}.rg-shell section,.rg-guide section{margin-top:24pt}.rg-crumbs{display:none}.rg-template{border:1px solid #777}.rg-shell .rg-button,.rg-guide .rg-button{background:white;color:black;border-color:#888}.rg-hero{padding-top:0}}