/* Informed Surgery guide pages: shared styles. Warm white, navy, restrained teal. */
:root{color-scheme:light dark;
--bg:light-dark(#fbf9f5,#0f1622);--paper:light-dark(#ffffff,#162031);--band:light-dark(#f2eee6,#131c2b);
--ink:light-dark(#14223a,#e8ecf2);--muted:light-dark(#4f5b6e,#a8b3c4);--line:light-dark(#e2ddd2,#27344a);
--navy:light-dark(#14223a,#0b111b);--teal:light-dark(#127a78,#4cc2bd);--tealbg:light-dark(#e3f1ef,#163a3c);--onnavy:#eef2f7}
*{box-sizing:border-box;min-width:0}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 "Public Sans",system-ui,sans-serif;overflow-x:clip}
h1,h2,h3{font-family:Newsreader,Georgia,serif;font-weight:600;line-height:1.12;text-wrap:balance;margin:0 0 .5em}
h1{font-size:clamp(34px,5vw,50px)}h2{font-size:clamp(26px,3.2vw,34px);margin-top:.2em}h3{font-size:21px;line-height:1.25;margin-top:1.4em}
p,li{max-width:70ch}p{margin:0 0 1em}a{color:var(--teal)}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:var(--paper);padding:8px 12px;z-index:20}
:focus-visible{outline:3px solid var(--teal);outline-offset:2px}
header{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd{display:flex;align-items:center;gap:20px;padding:12px max(5vw,16px);max-width:1280px;margin:0 auto;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:600 21px Newsreader,Georgia,serif;margin-right:auto}
.brand svg{width:34px;height:34px;flex:none}
nav ul{display:flex;flex-wrap:wrap;gap:2px;list-style:none;margin:0;padding:0}
nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:500;font-size:15px}
nav a:hover{background:var(--band)}
.menu{display:none;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);font:600 15px inherit}
@media(max-width:860px){.menu{display:inline-flex;align-items:center}nav{width:100%;display:none}nav.open{display:block}nav ul{flex-direction:column}nav a{width:100%}}
.band{padding:clamp(32px,5vw,64px) max(5vw,16px)}.alt{background:var(--band)}
.wrap{max-width:1180px;margin:0 auto}
.tag{display:inline-block;font-size:13px;font-weight:600;color:var(--teal);background:var(--tealbg);padding:3px 10px;border-radius:999px;margin-bottom:12px}
.hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:clamp(24px,4vw,56px);align-items:center}
@media(max-width:760px){.hero{grid-template-columns:1fr}.hero .art{max-width:260px}}
.lede{font-size:19px;color:var(--muted)}
.art{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:18px}
.art svg{width:100%;height:auto;display:block}
.trust{font-size:14.5px;color:var(--muted);border-left:3px solid var(--teal);padding:4px 0 4px 14px;margin-top:18px}
.ill{fill:none;stroke:var(--ink);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.ill .t{fill:var(--tealbg);stroke:var(--teal)}.ill .f{fill:var(--band)}.ill .p{fill:var(--paper)}.ill .c{stroke-width:1.2;opacity:.45}
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:start}
@media(max-width:900px){.layout{grid-template-columns:1fr}.toc{position:static!important}}
.toc{position:sticky;top:84px;font-size:15px}
.toc b{display:block;margin-bottom:8px}
.toc ol{list-style:none;padding:0;margin:0;border-left:2px solid var(--line)}
.toc a{display:block;padding:6px 12px;color:var(--muted);text-decoration:none;min-height:32px}
.toc a:hover{color:var(--teal)}
article section{padding-bottom:28px;margin-bottom:28px;border-bottom:1px solid var(--line);scroll-margin-top:84px}
article section:last-child{border-bottom:0}
.key{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:20px 24px}
.key ul{margin:0;padding-left:20px}.key li{margin:6px 0}
.note{background:var(--tealbg);border-radius:12px;padding:14px 18px;font-size:15.5px}
.tbl{overflow-x:auto;margin:16px 0}
table{border-collapse:collapse;width:100%;font-size:15.5px;background:var(--paper);border:1px solid var(--line);border-radius:12px}
th,td{text-align:left;vertical-align:top;padding:10px 12px;border-bottom:1px solid var(--line)}
th{background:var(--band);font-weight:600}
@media(max-width:640px){.stack thead{display:none}.stack tr{display:grid;padding:8px 0;border-bottom:1px solid var(--line)}.stack td{border:0;padding:4px 12px}.stack td::before{content:attr(data-l);display:block;font-size:13px;font-weight:600;color:var(--muted)}}
.tl{list-style:none;padding:0;margin:0}
.tl li{display:grid;grid-template-columns:130px minmax(0,1fr);gap:16px;padding:14px 0;border-top:1px solid var(--line);max-width:none}
.tl li b{font-family:Newsreader,serif;font-size:19px;color:var(--teal)}
@media(max-width:520px){.tl li{grid-template-columns:1fr;gap:4px}}
.qs{counter-reset:q;list-style:none;padding:0}
.qs li{counter-increment:q;position:relative;padding:8px 0 8px 40px}
.qs li::before{content:counter(q);position:absolute;left:0;top:8px;width:28px;height:28px;border-radius:50%;background:var(--tealbg);color:var(--teal);font-weight:700;font-size:14px;display:grid;place-items:center}
sup a{text-decoration:none;font-weight:600;font-size:12px;padding:0 2px}
.refs{font-size:14.5px;padding-left:22px}.refs li{margin:8px 0;word-break:break-word}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0}
.chips li{background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:15px}
.more{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:14px}
.more a{display:block;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--ink);font-weight:600}
.more a span{display:block;font-weight:400;font-size:14px;color:var(--muted)}
footer{background:var(--navy);color:#c7d0dd;font-size:14.5px}
footer a{color:#eef2f7}
.ft{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:26px}
footer ul{list-style:none;padding:0;margin:0}footer li{margin:6px 0}
footer h3{font:600 15px "Public Sans",sans-serif;color:#fff;margin:0 0 10px}