:root{color-scheme:dark;--bg:#101516;--panel:#192123;--line:#2c3739;--text:#e4ece9;--muted:#91a19f;--accent:#b1d5c6}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:13px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select{font:inherit}button{cursor:pointer;color:inherit;background:none;border:0}a{color:var(--accent);text-decoration:none}button:hover,a:hover{color:#fff}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,#viewport:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button:disabled{opacity:.35;cursor:default}.header{height:70px;padding:0 30px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:70px}.brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:550;color:var(--text)}.brand svg{color:var(--accent)}nav{display:flex;gap:8px;align-items:center}nav a,nav>span{padding:10px 20px;border-radius:5px}nav>span{color:#64716f}.active{background:#2b3935;color:#d1e4dc}.local{margin-left:auto;color:var(--muted);font-size:10px;border:1px solid var(--line);border-radius:4px;padding:6px 9px}main{padding:25px 28px 0;max-width:1920px;margin:auto}.heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.eyebrow{font-size:10px;letter-spacing:1.4px;color:var(--muted);font-weight:500}h1{font-size:27px;font-weight:450;letter-spacing:-.5px;margin:7px 0 0}h1 span{font-size:14px;color:var(--muted);font-weight:400;margin-left:10px}.heading-meta{display:flex;align-items:center;gap:25px;color:var(--muted);font-size:12px}.heading-meta button{color:var(--accent)}.workspace{display:grid;grid-template-columns:260px minmax(360px,1fr) 290px;height:calc(100dvh - 218px);min-height:660px;border:1px solid var(--line);border-radius:8px;overflow:hidden}.bone-sidebar{background:var(--panel);display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--line)}.list-head{display:flex;justify-content:space-between;align-items:center;padding:21px 20px 17px}.list-head h2{font-size:14px;font-weight:500;margin:0}.list-head>span{color:var(--muted);font:11px ui-monospace,monospace}.filters{display:grid;gap:10px;padding:0 16px}.filters input,.filters select{width:100%;min-width:0;border:1px solid #354346;border-radius:4px;background:#202b2d;color:var(--text);padding:10px 11px;font-size:12px}.filters input::placeholder{color:#879793}.list-caption{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;padding:17px 20px 10px}.list-caption button{color:var(--accent);font-size:10px}#bone-list{overflow:auto;flex:1;padding:0 9px 10px;scrollbar-width:thin;scrollbar-color:#40534e transparent}.group-heading{font-size:9px;text-transform:uppercase;letter-spacing:1.3px;font-weight:500;color:#829792;padding:17px 11px 9px;margin:0}.bone-row{position:relative;display:flex;width:100%;gap:12px;text-align:left;align-items:center;padding:11px 10px;border:1px solid transparent;border-radius:4px;margin:2px 0}.bone-row.selected{background:#2c3c36;border-color:#4e665c}.bone-row.selected:before{content:'';position:absolute;left:-1px;top:7px;bottom:7px;width:3px;background:var(--bone);border-radius:2px}.bone-row:hover{background:#263230}.row-number{color:var(--bone);width:22px;flex-shrink:0;font:11px ui-monospace,monospace}.bone-row strong{font-size:12px;font-weight:450;display:block}.bone-row small{font-size:10px;color:var(--muted);display:block;margin-top:5px}.list-foot{border-top:1px solid var(--line);padding:16px 20px;font-size:10px;line-height:1.8;color:#b4c2bd}.list-foot span{color:#80938d}.empty{padding:20px 10px;color:var(--muted);line-height:1.7}.viewer-panel{min-width:0;min-height:0;display:flex;flex-direction:column;background:#080e10}.viewer-head{height:48px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--line);font-size:11px;color:var(--muted)}.viewer-head span{display:flex;align-items:center;gap:8px}.viewer-head i{background:#a2b8af;width:5px;height:5px;border-radius:50%}.viewer-head button{font-size:11px;color:var(--accent)}#viewport{position:relative;flex:1;min-height:0;overflow:hidden;touch-action:none;cursor:grab}#viewport.dragging{cursor:grabbing}#stage{position:absolute;left:0;top:0;width:1466px;height:2082px;transform-origin:0 0;will-change:transform}#radiograph,#leaders,#markers{position:absolute;inset:0;width:1466px;height:2082px}#radiograph{user-select:none}#leaders{overflow:visible;pointer-events:none}#markers{pointer-events:none}.marker{position:absolute;transform:translate(-50%,-50%) scale(var(--inverse));transform-origin:center;pointer-events:auto;display:grid;place-items:center;min-width:23px;height:23px;padding:0 4px;background:#172522e8;border:1px solid var(--bone);border-radius:50%;color:var(--bone);font:10px ui-monospace,monospace;box-shadow:0 1px 4px #0005}.marker.selected{background:var(--bone);color:#13201b;box-shadow:0 0 0 3px #0c1714aa;font-weight:700}.marker:hover{background:var(--bone);color:#13201b}.view-meta{position:absolute;left:19px;top:18px;pointer-events:none;font:11px/1.8 ui-monospace,monospace;color:#b3c3bf}.view-meta span{font-size:9px;color:#83928e}.view-hint{position:absolute;bottom:16px;left:0;right:0;text-align:center;pointer-events:none;color:#7b918a;font-size:10px}.zoom-tools{position:absolute;right:16px;bottom:48px;border:1px solid #334743;border-radius:6px;background:#14201eea;display:flex;flex-direction:column;align-items:center;padding:5px 0;width:40px}.zoom-tools button{height:34px;width:100%;font-size:22px}.zoom-tools #native{font:11px ui-monospace,monospace}.zoom-tools output{font:9px ui-monospace,monospace;color:var(--muted);padding:8px 0}.viewer-foot{border-top:1px solid var(--line);display:flex;align-items:center;gap:17px;padding:15px 18px;background:var(--panel);flex-wrap:wrap;font-size:11px;flex-shrink:0}.viewer-foot button{border:1px solid #637e70;color:var(--accent);padding:8px 10px;border-radius:4px;font-size:11px}.viewer-foot label{display:flex;align-items:center;gap:6px;cursor:pointer;color:#afbeb7;white-space:nowrap}.viewer-foot input{accent-color:#a3cbb9;margin:0}.details-panel{border-left:1px solid var(--line);background:var(--panel);overflow:auto;scrollbar-width:thin;scrollbar-color:#40534e transparent}.anatomy{padding:25px 24px 19px}.anatomy .eyebrow{font-size:9px;letter-spacing:.9px}.detail-number{margin-top:24px;width:28px;height:28px;border:1px solid var(--bone);color:var(--bone);display:grid;place-items:center;border-radius:50%;font:11px ui-monospace,monospace}.anatomy h2{font-size:24px;letter-spacing:-.5px;font-weight:450;line-height:1.25;margin:13px 0 7px}.anatomy .latin{font-size:13px;color:#a4b8af;font-style:italic;margin:0 0 22px}.anatomy p,.projection p{color:#b1c1ba;font-size:12px;line-height:1.85;margin:14px 0}.detail-divider{height:1px;background:var(--line);margin:22px 0}h3{font-size:12px;font-weight:500;margin:0;color:#d2e0d8}#focus-bone{border:1px solid #42584e;border-radius:4px;color:var(--accent);padding:10px 12px;font-size:11px;margin:8px 0 23px}.step-controls{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:10px}.step-controls button{font-size:18px;border:1px solid #354841;border-radius:4px;width:30px;height:28px}.projection{border-top:1px solid var(--line);padding:24px}.projection h3{font-size:16px;font-weight:450;margin:10px 0 15px}.projection svg{width:100%;height:auto;margin:5px 0}.projection p{font-size:11px}summary{cursor:pointer;color:var(--accent);font-size:11px;line-height:1.8}details{border-top:1px solid var(--line);padding-top:15px;margin-top:18px}.review-note{border-top:1px solid var(--line);color:#9d9880;padding:16px 24px;font-size:10px;line-height:1.7}footer{display:flex;justify-content:space-between;gap:15px;color:#758a82;font-size:9px;padding:16px 0;line-height:1.6}dialog{background:#1b2725;color:var(--text);border:1px solid #496055;border-radius:8px;width:min(500px,calc(100vw - 32px));padding:28px}dialog::backdrop{background:#000a}.dialog-head{display:flex;justify-content:space-between;align-items:center}.dialog-head h2{font-size:21px;font-weight:450;margin:0}.dialog-head button{font-size:25px}dialog p,dialog dd{color:#b9c8c1;font-size:12px;line-height:1.8}dialog dt{font-size:11px;margin-top:18px}dialog dd{margin:5px 0 0}dialog a{display:block;font-size:11px;margin-top:15px}#image-error{position:absolute;top:40%;left:10%;right:10%;padding:22px;background:#253530;text-align:center;line-height:1.8}#image-error button{color:var(--accent);text-decoration:underline}[hidden]{display:none!important}
@media(min-width:1600px){.workspace{grid-template-columns:285px minmax(500px,1fr) 330px}.anatomy,.projection{padding:28px}.anatomy p{font-size:13px}}
@media(max-width:1150px){main{padding:22px 16px 0}.workspace{grid-template-columns:215px minmax(300px,1fr) 240px}.anatomy,.projection{padding:20px 18px}.viewer-foot{gap:12px;padding:12px}.anatomy h2{font-size:21px}.bone-row{gap:7px}.header{gap:40px}.viewer-foot button{width:100%}}
@media(max-width:850px){.workspace{grid-template-columns:210px minmax(0,1fr);height:auto;min-height:0}.viewer-panel{height:750px}.bone-sidebar{height:750px}.details-panel{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;border-left:0;border-top:1px solid var(--line)}.projection{border-top:0;border-left:1px solid var(--line)}.review-note{grid-column:1/-1}.anatomy .detail-number{margin-top:15px}.heading-meta{gap:15px}.viewer-foot button{width:auto}}
@media(max-width:540px){.header{height:62px;padding:0 15px;gap:16px}.brand{font-size:14px;gap:7px}.brand svg{width:20px}.header nav{gap:1px}nav a,nav>span{padding:9px 10px;font-size:11px}.local{display:none}main{padding:22px 12px 0}.heading{margin-bottom:18px}.heading-meta{display:grid;gap:10px;font-size:10px;text-align:right}.heading-meta button{text-align:right;padding:0;font-size:11px}.heading h1{font-size:25px}.workspace{display:flex;flex-direction:column}.viewer-panel{order:0;height:620px}.bone-sidebar{order:1;height:380px;border-right:0;border-top:1px solid var(--line)}.details-panel{order:2;display:block}.filters{grid-template-columns:1fr 1fr;gap:8px}.list-head{padding:16px}.list-caption{padding:12px 18px 3px}.list-foot{display:none}.bone-row{padding:11px}.projection{border-left:0;border-top:1px solid var(--line)}.viewer-foot{gap:13px;justify-content:center}.viewer-foot button{width:100%}.view-hint{font-size:9px}.view-meta{font-size:10px}.view-meta span{font-size:8px}.zoom-tools{right:10px;width:35px}.group-heading{padding-top:12px}footer{flex-direction:column;gap:4px}.anatomy{padding:24px}.anatomy h2{font-size:25px}#focus-bone{margin-bottom:17px}.list-head h2{font-size:13px}}

/* Keep a selected position readable over both bright bone and dark background. */
.marker.selected{background:color-mix(in srgb,var(--bone),white 40%);border-color:#fff6;box-shadow:0 0 0 3px #06100e,0 0 0 4px #e9fff080}