:root{color-scheme:light;--bg:#fff;--text:#101d4a;--muted:#516078;--teal:#007f86;--tint:#edf9f8;--line:#d8e2ec;--surface:#f7f9fc;--purple:#594095;--lavender:#eee5ff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--text);font:18px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}body.dark{color-scheme:dark;--bg:#111b2d;--text:#edf3ff;--muted:#bccadd;--teal:#63d8d2;--tint:#173335;--line:#384761;--surface:#19263b;--purple:#d4b9ff;--lavender:#30294c}a{color:var(--teal);text-underline-offset:4px}button,input,select{font:inherit}button,.button,select{min-height:48px}button,.button{cursor:pointer;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--text);padding:10px 18px;font-weight:650;text-decoration:none}button:hover,.button:hover{filter:brightness(.94)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--purple);outline-offset:4px}header{display:flex;align-items:center;gap:24px;max-width:1480px;margin:auto;padding:22px 32px;border-bottom:1px solid var(--line);flex-wrap:wrap}.brand{font-size:27px;font-weight:800;line-height:1.1;color:var(--text);text-decoration:none;letter-spacing:-1px}.brand small{display:block;font-size:12px;font-weight:500;letter-spacing:3px;margin-top:6px;color:var(--muted)}nav{display:flex;gap:20px;flex:1;justify-content:center;flex-wrap:wrap}nav a{font-size:14px;font-weight:650;color:var(--text);text-decoration:none;min-height:44px;display:flex;align-items:center}nav a:hover{color:var(--teal)}#menu{display:none}#theme{font-size:14px}.skip{position:absolute;top:-100px;background:var(--bg);z-index:10;padding:15px}.skip:focus{top:10px}main,footer{max-width:1240px;margin:auto;padding:0 32px}.hero{display:grid;grid-template-columns:1.5fr 1fr;gap:65px;align-items:center;padding:64px 0 45px}.hero h1{font-size:clamp(42px,5.3vw,76px);letter-spacing:-3px;line-height:1.08;margin:0 0 24px}.lead{font-size:23px;line-height:1.55;color:var(--muted);max-width:850px}.actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}.button{background:var(--teal);color:var(--bg);padding:17px 26px;font-size:19px}.button span{margin-left:15px}.button.secondary{background:var(--lavender);color:var(--purple);border-color:transparent}.intro{padding:28px 0 28px 30px;border-left:1px solid var(--line)}.intro h2{font-size:24px;letter-spacing:-.5px}.intro p{font-size:18px}.orbit{width:105px;height:105px;border:2px solid var(--teal);border-radius:50%;position:relative;display:grid;place-items:center;background:var(--tint)}.orbit:after{content:"";position:absolute;width:125px;height:45px;transform:rotate(-35deg);border:2px solid var(--purple);border-radius:50%}.orbit span{font-size:32px;font-weight:700;color:var(--teal)}.notice{padding:22px 26px;border-left:4px solid var(--teal);background:var(--tint);border-radius:0 12px 12px 0;font-size:17px}.notice strong{display:block}section{padding:62px 0;border-bottom:1px solid var(--line)}h2{font-size:clamp(30px,3vw,40px);line-height:1.2;letter-spacing:-1.2px;margin:0 0 20px}h3{font-size:22px;line-height:1.4;margin:0 0 15px}p{margin:0 0 20px}.section-heading{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:22px}.section-heading p{margin-bottom:0}.muted,.small{color:var(--muted);font-size:15px}.wide{max-width:950px}.lab-layout{display:grid;grid-template-columns:1fr 1.2fr .9fr;border:1px solid var(--line);border-radius:18px;overflow:hidden}.lab-layout>div,.lab-note{padding:25px}.lab-note{background:var(--surface);border-left:1px solid var(--line)}label{display:block;font-weight:650;margin:0 0 10px}select{width:100%;max-width:100%;border:1px solid var(--line);border-radius:9px;padding:12px 9px;background:var(--bg);color:var(--text);font-size:16px}#controls 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1fr;gap:55px}.tinted{background:var(--tint);margin:0 -24px;padding:52px 24px;border-radius:18px}.tinted .notice{background:var(--bg)}dt{font-weight:750}dd{margin:0 0 18px;color:var(--muted)}.anatomy{align-self:center;padding:25px;background:var(--surface);border-radius:18px}.pet-section h2{color:var(--purple)}ol{padding-left:25px}li{margin-bottom:15px}table{border-collapse:collapse;width:100%;font-size:16px}caption{text-align:left;font-size:23px;font-weight:700;margin:25px 0 16px}td,th{border:1px solid var(--line);padding:16px;text-align:left;vertical-align:top}thead{background:var(--surface)}.table-wrap{overflow:auto}.checklist{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:24px;margin:20px 0}.checklist h3{margin-bottom:10px}.checklist label{display:flex;gap:15px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line);font-size:18px;font-weight:400;cursor:pointer;margin:0}.checklist input{flex:none;width:25px;height:25px;margin-top:4px;accent-color:var(--teal)}.checklist label:has(input:checked){color:var(--muted);text-decoration:line-through;background:var(--tint)}progress{width:100%;height:12px;accent-color:var(--teal)}.check-foot{display:flex;justify-content:space-between;align-items:center;margin-top:17px;font-size:15px}.timeline-item{padding-left:24px;border-left:3px solid var(--teal)}.timeline-item summary span{color:var(--purple);display:inline-block;min-width:85px}.timeline-item p{max-width:800px}footer{padding-top:40px;padding-bottom:45px;font-size:16px}#source-list{columns:2;padding-left:24px;font-size:16px}#source-list li{break-inside:avoid}.pulse{animation:flash .7s ease-out}@keyframes flash{from{opacity:.25}to{opacity:1}}@media(max-width:1000px){header{gap:18px}nav{order:3;flex-basis:100%;justify-content:flex-start}.lab-layout{grid-template-columns:1fr 1fr}.lab-note{grid-column:1/-1;border-left:0;border-top:1px solid var(--line)}.hero{gap:35px}.columns{gap:30px}}@media(max-width:650px){body{font-size:18px}header{padding:18px 20px;gap:12px}.brand{margin-right:auto;font-size:25px}#theme{padding:9px;font-size:13px}#menu{display:block;font-size:15px}nav{display:none;gap:8px 22px}nav.open{display:flex}nav a{font-size:16px}main,footer{padding-left:22px;padding-right:22px}.hero{display:block;padding-top:42px;padding-bottom:30px}.hero h1{letter-spacing:-1.8px;font-size:48px}.lead{font-size:21px}.intro{margin-top:35px;padding:0;border-left:0;display:block}.orbit{float:right;margin:8px 8px 20px 20px;width:75px;height:75px}.orbit:after{width:90px;height:35px}.actions{display:grid}.button{text-align:center}.notice{padding:18px}.section-heading{display:block}.section-heading .muted{display:block;margin-top:15px}.lab-layout,.topics,.columns{display:block}.lab-layout>div,.lab-note{padding:20px}.lab-layout .visual{border-top:1px solid var(--line)}.visual svg{max-height:280px}.lab-note{border-top:1px solid var(--line)}section{padding:42px 0}.tinted{margin:0 -10px;padding:32px 12px}.columns>div,.columns>article{margin-bottom:28px}.checklist{padding:18px 14px}.checklist label{font-size:17px}.check-foot{gap:10px}.section-heading button{margin-top:18px}#source-list{columns:1}td,th{padding:12px;min-width:130px}html{scroll-padding-top:20px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}@media print{header,.hero,.notice,#lab,#mri,#bridge,#neck,#pet,#appointments,#history,#sources,footer,#print,.check-foot button{display:none!important}body,main,#checklists{background:white!important;color:black!important;margin:0;padding:0}.checklist{break-inside:avoid}.checklist label{font-size:12pt}.checklist input{appearance:auto}.tinted{margin:0}h2{font-size:23pt}.checklist h3{font-size:16pt}}
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