/* textbook clinical pearls (pearls_ui.js) — same rules in the hosted app and the artifacts; colours from .pg tokens */
.pl-sw{margin:0 0 4px}
.pl-sw .pg-tabs{margin:0 0 12px}
.pl .pl-q{display:block;max-width:560px;margin:0 0 16px}
.pl-books{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.pl-books[hidden],.pl-res[hidden]{display:none}
.pl .pl-book{display:flex;flex-direction:column;gap:4px;text-align:left;padding:14px 15px;border:1px solid var(--p-line);border-radius:14px;background:var(--p-card);color:var(--p-ink)}
.pl .pl-book:hover{border-color:var(--p-acc)}
.pl-bt{font:400 18px/1.25 var(--display,var(--serif));margin-bottom:2px}
.pl-bm{font-size:12.5px;color:var(--p-mut)}
.pl-tog{display:flex;gap:6px;flex-wrap:wrap}
.pl-n{margin:2px 0 12px;font-size:13px;color:var(--p-mut)}
.pl-secs{display:flex;flex-direction:column;gap:6px}
.pl-sec{border:1px solid var(--p-line);border-radius:12px;background:var(--p-card)}
.pl-sec>summary{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:10px 14px;cursor:pointer;list-style:none;font-size:14.5px;font-weight:500;color:var(--p-ink)}
.pl-sec>summary::-webkit-details-marker{display:none}
.pl-sec>summary::before{content:"›";display:inline-block;width:12px;margin-right:4px;color:var(--p-dim);transition:transform .15s}
.pl-sec[open]>summary::before{transform:rotate(90deg)}
.pl-st{flex:1}
.pl-c{font-size:12.5px;font-weight:400;color:var(--p-dim)}
.pl-body{padding:0 14px 12px}
.pl-top{font:600 11.5px/1.4 var(--ui,var(--sans));letter-spacing:.07em;text-transform:uppercase;color:var(--p-acc);margin:12px 0 4px}
.pl-list{list-style:none;margin:0;padding:0}
.pl-p{display:flex;flex-direction:column;gap:3px;padding:8px 0;border-top:1px solid var(--p-line);font-size:14.5px;line-height:1.55;color:var(--p-ink)}
.pl-list .pl-p:first-child{border-top:0}
.pl-x mark{background:color-mix(in srgb,var(--p-acc) 22%,transparent);color:inherit;border-radius:3px;padding:0 1px}
.pl-m{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:11.5px;color:var(--p-dim)}
.pl-box{padding:1px 8px;border-radius:999px;background:var(--hc-tint);color:var(--p-acc);font-weight:500}
.pl-flag{padding:1px 8px;border-radius:999px;border:1px solid var(--p-warn);color:var(--p-warn);font-weight:600;font-size:11px;letter-spacing:.03em}
.pl-pg{color:var(--p-dim)}
a.pl-pg{color:var(--p-acc);text-decoration:none;border-bottom:1px dotted currentColor}
.pl-where{color:var(--p-mut)}
.pl-grp{margin:0 0 20px}
.pl-gh{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 0 6px}
.pl-gh h2{font:400 20px/1.25 var(--display,var(--serif));margin:0;color:var(--p-ink);text-transform:none;letter-spacing:0}
.pl-grp .pl-list{border:1px solid var(--p-line);border-radius:12px;background:var(--p-card);padding:0 14px}
@media (max-width:640px){
  .pl-books{grid-template-columns:1fr}
  .pl .pl-q{max-width:none}
  .pl-sec>summary{padding:10px 12px}
  .pl-body{padding:0 12px 10px}
}