.ca-btn{transition:background .25s ease,color .25s ease,border-color .25s ease}
.ca-btn:hover,.ca-btn:focus{border-color:rgba(255,255,255,0.42);background-color: #fff;}
.ca-btn:hover .ca-blabel{color:#5c5c5c}
.ca-btn:focus-visible,.ca-arrow:focus-visible,.ca-link:focus-visible{outline:none;}
.ca-arrow{transition:background .2s ease,border-color .2s ease}
.ca-arrow:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.4)}
.ca-link span.ca-rule{transition:width .3s ease}
.ca-link:hover span.ca-rule{width:calc(100% - 46px)}
@keyframes caFill{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.ca-fill{transform-origin:left center;animation:caFill 7s linear forwards}
@keyframes caIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.ca-in{animation:caIn .5s ease both}
@keyframes caLbl{from{opacity:0}to{opacity:1}}
.ca-lbl{animation:caLbl .6s ease 1.1s both}
.ca-lbl text{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:11px;letter-spacing:.06em;fill:#ffffff;paint-order:stroke;stroke:#060606;stroke-width:3px;text-transform:uppercase}
.ca-lbl path{stroke:rgba(255,255,255,0.7);stroke-width:.75;fill:none}
.ca-lbl circle{fill:#ffffff}
.ca-hud{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:10.5px;letter-spacing:.12em;fill:#8f8f8f}
.ca-zoom{transition:transform 1.5s cubic-bezier(.65,0,.2,1)}
.ca-z-overview{transform:translate(36.2px,-94.9px) scale(.78)}
.ca-z-face{transform:translate(-556px,-697.6px) scale(4.2)}
.ca-z-brain{transform:translate(-388.6px,-280px) scale(2.7)}
.ca-z-adr{transform:translate(-910px,-1295px) scale(5)}
.ca-z-adrl{transform:translate(-904px,-2771.4px) scale(4.6)}
.ca-seg:focus-visible,.ca-replay:focus-visible{outline:2px solid #ffffff;outline-offset:2px}
/* procedure animations: play once after the zoom settles */
@keyframes caOut{from{opacity:1}to{opacity:0}}
@keyframes caAppear{from{opacity:0}to{opacity:1}}
@keyframes caSlideL{from{transform:translateX(-30px);opacity:0}60%{opacity:1}to{transform:none;opacity:1}}
@keyframes caSlideR{from{transform:translateX(26px);opacity:0}60%{opacity:1}to{transform:none;opacity:1}}
@keyframes caSeat{0%{transform:scaleY(.82)}100%{transform:scaleY(1)}}
.ca-a-worn{animation:caOut .5s ease 1.4s both}
.ca-a-void{animation:caAppear .35s ease 1.45s both}
.ca-a-canal{animation:caAppear .6s ease 1.7s both}
.ca-a-slideL{animation:caSlideL 1s cubic-bezier(.2,.8,.2,1) 1.9s both}
.ca-a-slideR{animation:caSlideR 1s cubic-bezier(.2,.8,.2,1) 2.1s both}
.ca-a-seat{transform-box:fill-box;transform-origin:center;animation:caSeat .5s ease-out 2.75s both}
.ca-replay{transition:background .2s ease,border-color .2s ease}
.ca-replay:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.4)}
@media (prefers-reduced-motion: reduce){
  .ca-zoom,.ca-mm{transition:none !important}
  .ca-anim *,.ca-lbl,.ca-fill,.ca-in{animation-duration:.01s !important;animation-delay:0s !important}
}
.ca-z-tops{transform:translate(-1244.8px,-3447.2px) scale(5.6)}
.ca-bone{stroke:rgba(255,250,240,0.78);stroke-width:.4;fill:url(#ca-boneG);stroke-linejoin:round}
.ca-ped{stroke:rgba(255,255,255,0.28);stroke-width:.3;fill:none;stroke-dasharray:.8 .8}
.ca-trab{stroke:rgba(255,255,255,0.18);stroke-width:.25;fill:none}
.ca-disc{fill:rgba(142,197,255,0.30)}
.ca-facet{stroke:rgba(255,255,255,0.8);stroke-width:.35;fill:none}
.ca-skull{stroke:rgba(255,255,255,0.58);stroke-width:.45;fill:none;stroke-linecap:round;stroke-linejoin:round}
.ca-soft{stroke:rgba(255,255,255,0.2);stroke-width:.35;fill:none;stroke-dasharray:1.4 1.4}
.ca-neuro{stroke:rgba(142,197,255,0.72);stroke-width:.4;fill:none;stroke-linecap:round;stroke-linejoin:round}
.ca-hl{transition:opacity .6s ease .5s}
.ca-mm{transition:x 1.5s cubic-bezier(.65,0,.2,1),y 1.5s cubic-bezier(.65,0,.2,1),width 1.5s cubic-bezier(.65,0,.2,1),height 1.5s cubic-bezier(.65,0,.2,1)}
/* ---- page structure (moved out of inline styles) ---- */
.ca-sec{font-family:'Plus Jakarta Sans',system-ui,sans-serif;color:#ffffff;background:#050505;box-sizing:border-box}
.ca-headcol{display:flex;flex-direction:column;gap:20px}
.ca-eyebrow,.ca-domain{font-size:12px;font-weight:500;text-transform:uppercase;color:#8f8f8f}
.ca-eyebrow{letter-spacing:.22em}
.ca-domain{letter-spacing:.2em}
.ca-h2{margin:0;line-height:.98;font-weight:400;letter-spacing:-.04em}
.ca-sub{margin:0;line-height:1.7;font-weight:300;color:#c9c9c9}
.ca-photo{position:relative;border-radius:18px;overflow:hidden;background:#111111}
.ca-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 28%;display:block}
.ca-copy{display:flex;flex-direction:column;gap:18px;font-size:17px;line-height:1.8;font-weight:300;color:#c9c9c9}
.ca-copy p{margin:0}
.ca-more{align-self:flex-start;display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0;border:0;background:none;color:#ffffff;font-family:inherit;font-size:15px;font-weight:500;cursor:pointer}
.ca-more:hover,.ca-more:focus{background:transparent}
.ca-more:focus-visible{outline:none}
.ca-chev{transition:transform .25s ease}
.ca-btngrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.ca-prog{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.ca-detail{min-width:0}
.ca-viewer{min-width:0;margin:0;display:flex;flex-direction:column;border-radius:18px;border:1px solid rgba(255,255,255,0.12);background:#070809;overflow:hidden;touch-action:pan-y}
.ca-vbox{display:block;width:100%;height:auto}
/* svg art tuning (was inline in the markup) */
.ca-hair{stroke-width:.3;opacity:.55}
.ca-brainfill{fill:url(#ca-brainG)}
.ca-gyri-fine{stroke-width:.22;opacity:.55}
.ca-gyri{stroke-width:.3;opacity:.75}
.ca-sw28{stroke-width:.28}
.ca-nf08{fill:rgba(142,197,255,0.08)}
.ca-nf10{fill:rgba(142,197,255,0.1)}
.ca-nf14{fill:rgba(142,197,255,0.14)}
.ca-nf25{fill:rgba(142,197,255,0.25)}
.ca-nf30{fill:rgba(142,197,255,0.3)}
.ca-nf35{fill:rgba(142,197,255,0.35)}
text.ca-dim{fill:#c9c9c9}
.ca-hud-lit{fill:#ffffff}
/* viewer caption */
.ca-cap{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;border-top:1px solid rgba(255,255,255,0.10)}
.ca-capmeta{display:flex;flex-direction:column;gap:3px;min-width:0}
.ca-caplabel{font-size:10px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:#8f8f8f}
.ca-capregion{font-size:14px;font-weight:400;color:#ffffff}
.ca-replay{margin-left:auto;flex:none;width:44px;height:44px;border-radius:999px;border:1px solid rgba(255,255,255,0.2);background:transparent;color:#ffffff;cursor:pointer;display:flex;align-items:center;justify-content:center}
.ca-swipe{align-items:center;gap:6px;font-size:12px;color:#8f8f8f;flex:none}
.ca-legend{gap:14px;font-size:11px;color:#a3a3a3}
.ca-lgitem{display:inline-flex;align-items:center;gap:6px}
.ca-lgdot{width:8px;height:8px;border-radius:999px}
.ca-lgdot--neural{background:#8ec5ff}
.ca-lgdot--bone{border:1px solid rgba(255,255,255,0.7)}
.ca-lgdot--target{background:#E5484D}
/* specialty buttons (markup generated by js/clinical-approach.js) */
.ca-bbtn{border-radius:12px;border:1px solid rgba(255,255,255,0.16);background:#0b0b0b;color:#ffffff;font-family:inherit;text-align:left;cursor:pointer;display:flex;flex-direction:column;justify-content:space-between;gap:10px}
.ca-bbtn.ca-on{border-color:#ffffff;background:#ffffff;color:#050505}
.ca-bico{display:flex;justify-content:flex-end;align-items:center;color:#8f8f8f;flex:none}
.ca-bbtn.ca-on .ca-bico{color:#5c5c5c}
.ca-blabel{font-weight:400;letter-spacing:-0.01em}
.ca-bbtn.ca-on .ca-blabel{font-weight:500}
/* progress segments */
.ca-pcol{display:flex;flex-direction:column;gap:12px}
.ca-pbar{position:relative;height:1px;background:rgba(255,255,255,0.16);overflow:hidden}
.ca-pfill{position:absolute;inset:0;background:#ffffff}
.ca-plbl{font-size:10px;line-height:1.3;font-weight:500;letter-spacing:0.1em;text-transform:uppercase;color:#6f6f6f;transition:color .3s ease}
.ca-plbl.ca-on{color:#ffffff}
/* detail panel */
.ca-dwrap{display:flex;flex-direction:column;gap:22px}
.ca-h3{margin:0;font-size:clamp(30px,7vw,38px);line-height:1.08;font-weight:400;letter-spacing:-0.03em}
.ca-body{margin:0;font-size:16px;line-height:1.8;font-weight:300;color:#c9c9c9}
.ca-conds{display:flex;flex-direction:column}
.ca-condslbl{font-size:11px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:#8f8f8f;padding-bottom:12px}
.ca-condrow{display:flex;justify-content:space-between;align-items:center;padding:13px 0;border-top:1px solid rgba(255,255,255,0.12);font-size:15px;font-weight:400;color:#ececec}
.ca-conddot{width:5px;height:5px;border-radius:999px;background:rgba(255,255,255,0.35)}
.ca-condsrule{border-top:1px solid rgba(255,255,255,0.12)}
/* video link */
.ca-link{display:inline-flex;flex-direction:column;gap:6px;min-height:48px;justify-content:center;font-size:15px;font-weight:500;text-decoration:none;color:#ffffff}
.ca-ctarow{display:inline-flex;align-items:center;gap:12px}
.ca-ctaico{width:34px;height:34px;border-radius:999px;border:1px solid rgba(255,255,255,0.35);display:inline-flex;align-items:center;justify-content:center}
.ca-rule{display:block;height:1px;width:32px;margin-left:46px;background:#ffffff}
/* prev / next arrows */
.ca-arow{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.ca-arrows{display:flex;gap:8px;margin-left:auto}
.ca-arrow{width:48px;height:48px;border-radius:999px;border:1px solid rgba(255,255,255,0.2);background:transparent;color:#ffffff;cursor:pointer;display:flex;align-items:center;justify-content:center}
/* cervical / lumbar segmented control */
.ca-segwrap{align-self:flex-start;display:inline-flex;gap:4px;padding:4px;border-radius:999px;border:1px solid rgba(255,255,255,0.16);background:#0b0b0b}
.ca-seg{min-height:44px;min-width:104px;padding:0 18px;border-radius:999px;border:0;background:transparent;color:#c9c9c9;font-family:inherit;font-size:14px;font-weight:400;cursor:pointer}
.ca-seg:hover{
    background:#ffffff;color:#050505;font-weight:500
}
.ca-seg.ca-on{background:#ffffff;color:#050505;font-weight:500}
/* ---- mobile-first layout ---- */
.ca-sec{padding:64px 20px 72px}
.ca-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;max-width:1376px;margin:0 auto;grid-template-areas:"head" "photo" "copy" "btns" "prog" "viewer" "detail"}
.ca-head{grid-area:head;display:flex;flex-direction:column;gap:20px;padding-bottom:8px;border-bottom:1px solid rgba(255,255,255,0.12)}
.ca-h2{font-size:clamp(44px,11vw,108px)}
.ca-sub{font-size:17px;padding-bottom:24px}
.ca-photo{grid-area:photo;aspect-ratio:4/3}
.ca-copy{grid-area:copy}
.ca-p2{display:none}
.ca-p2.ca-open{display:block}
.ca-btns{grid-area:btns}
.ca-vbox{aspect-ratio:4/3}
.ca-wide{display:none}
.ca-legend{display:none}
.ca-prog{grid-area:prog}
.ca-viewer{grid-area:viewer;align-self:start}
.ca-detail{grid-area:detail}
.ca-bbtn{min-height:52px;flex-direction:row-reverse;align-items:center;padding:10px 14px}
.ca-bbtn .ca-blabel {
    font-size: 14.5px;
    line-height: 1.25;
    display: block;
    white-space: break-spaces;
}
.ca-swipe{display:flex}
@media (min-width:1024px){
  .ca-sec{padding:112px 32px 120px}
  .ca-grid{grid-template-columns:minmax(0,5fr) minmax(0,4fr) minmax(0,4fr);column-gap:56px;row-gap:40px;grid-template-areas:"head head head" "copy photo photo" "btns prog prog" "btns detail viewer"}
  .ca-head{flex-direction:row;justify-content:space-between;align-items:flex-end;gap:40px;padding-bottom:56px;margin-bottom:32px}
  .ca-sub{font-size:19px;padding-bottom:0;max-width:640px}
  .ca-photo{aspect-ratio:auto;height:440px}
  .ca-p2{display:block}
  .ca-more{display:none}
  .ca-btns{align-self:start}
  .ca-vbox{aspect-ratio:400/520}
  .ca-wide{display:inline}
  .ca-legend{display:flex}
  .ca-bbtn{min-height:76px;flex-direction:column;align-items:stretch;padding:14px 18px}
  .ca-bbtn .ca-blabel{font-size:16px}
  .ca-swipe{display:none}
}