/* Open, side-by-side teaching workspace inspired by the supplied reference. */
:root{--bg:#20292e;--panel:#20292e;--border:#3c4c53;--teal:#a6c9bf}body{background:var(--bg);color:#d7e2df}.header{max-width:1800px;height:76px;border-color:#3a484e;padding:0 32px}.header nav a,.header nav button{font-size:11px}.brand{font-size:21px}.brand span{font-size:9px;letter-spacing:.4px}.header-tag{font-size:9px;letter-spacing:2px;color:#8fa3ab}.nav-active:after{bottom:-27px;background:#a6c9bf}.header nav button{border:1px solid #4a5d66;padding:8px 15px;border-radius:22px}.header nav{gap:15px}main{max-width:1800px;padding:24px 32px 0}.intro{margin-bottom:22px}.intro h1{font-size:26px;font-weight:450;letter-spacing:-.6px;margin:8px 0}.intro .eyebrow{font-size:9px;letter-spacing:2px;color:#98aeb5}.intro p{font-size:12px;color:#94a9b0}.tour-button{border:1px solid #4a6068;background:transparent;border-radius:22px;font-size:11px;padding:9px 15px}.tour-button>span:first-child{font-size:17px}.workspace-top{padding-bottom:17px;border-bottom:1px solid #3b4b52;margin-bottom:10px}.segmented{background:#1c252a;border-color:#43545d;border-radius:24px;padding:3px}.segmented button{border-radius:19px;min-width:130px;font-size:11px}.segmented button.active{background:#3a5154;color:#e0ece6}.model-info{font-size:10px;color:#9eb0b6}.workspace{display:grid;grid-template-columns:minmax(0,1.48fr) minmax(340px,.92fr);gap:0 28px;align-items:start}.panel{border:0;border-radius:0;background:transparent;overflow:visible}.anatomy-panel{grid-column:1;grid-row:1;min-width:0}.panel-head{padding:15px 0;border:0;min-height:48px;gap:10px}.panel-number{display:none}.panel-head h2{font-size:10px;letter-spacing:2.1px;font-weight:550;color:#adbdc2}.small-badge{font-size:9px;padding:4px 7px;background:#26383e;color:#a9c0c3}.anatomy-viewbar{padding:6px 0 11px;border:0;background:transparent;min-height:38px}.anatomy-viewbar .text-button{font-size:10px}#additional-presets{gap:7px}#additional-presets button{font-size:9px;border-radius:14px;padding:5px 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.preset-focus{display:none}.preset.active:after{right:10px;top:15px;width:4px;height:4px}.preset.nw,.preset.sw{left:2px}.preset.ne,.preset.se{right:2px}.preset.nw,.preset.ne{top:42px}.preset.sw,.preset.se{bottom:50px}.preset .mini-vessel-label{font-size:11px;stroke:#26363b;stroke-width:4px;fill:#d7e7e5}.axis-label{font-size:8px;color:#899fa7;letter-spacing:2px}.axis-label.cranial{top:12px}.axis-label.caudal{bottom:18px}.axis-label.rao{left:8px;top:47%;display:block}.axis-label.lao{right:8px;top:47%;display:block}.heart-legend{top:45px;font-size:9px;gap:12px}.view-indicator{bottom:37px;padding:8px 13px;background:#202d32de;border-color:#51656c;min-width:150px}.view-indicator span{font-size:10px}.view-indicator strong{font-size:10px}.zoom-controls{left:auto;right:calc(50% - 127px);bottom:43px}.zoom-controls button{background:#2c4149;border-color:#657e88;width:25px;height:25px;font-size:16px}#patient-axes{left:calc(50% - 170px);bottom:38px;width:58px;height:50px}#orientation-note{bottom:20px;display:none}.vessel-label{font-size:10px;border-color:#778e92;padding:3px 5px;background:#283a40d6}.anatomy-toolbar{padding:16px 0 12px;border-top:1px solid #3d4e55;gap:12px}.toggle-set{gap:15px;flex-wrap:wrap}.toggle-set label{font-size:10px;gap:6px}input[type=checkbox]{width:12px;height:12px}.anatomy-toolbar .text-button{font-size:10px}.model-bottom{padding:12px 0;border:0;color:#95a9af;font-size:9px}.opacity-label input{width:85px}.opacity-label output{font-size:9px}.right-column{grid-column:2;grid-row:1;display:flex;flex-direction:column;gap:20px;min-width:0;padding-left:27px;border-left:1px solid #3b4b52;margin:0}.live-label{font-size:8px;color:#a4b7be;letter-spacing:1.1px}.projection-tabs{padding:0;gap:22px;background:transparent;margin:0 0 12px}.projection-tabs button{font-size:11px;padding:8px 0 9px;color:#93aab3}.projection-tabs button.active{color:#deebe6;border-color:#a6c9bf}.film-stage{padding:0;min-height:0;background:transparent}.cine-viewport{height:310px;position:relative;background:#05090b;border:1px solid #526168;border-radius:5px;overflow:hidden}.film-stage video{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:contain;background:#05090b}.cine-meta{position:absolute;top:12px;left:13px;right:13px;display:flex;justify-content:space-between;gap:10px;font:9px ui-monospace,monospace;color:#d4dcdb;z-index:2;pointer-events:none;text-shadow:0 1px 4px #000,0 0 7px #000}.cine-meta span{background:#0610167a;padding:3px 5px;border-radius:2px}#film-moving{position:absolute;inset:auto 0 32px;z-index:3;text-align:center;background:#1b2a31e8;padding:11px 8px;font-size:11px;color:#c9ddd8}#film-unavailable{position:absolute;inset:0;height:auto;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:38px 25px;text-align:center;background:radial-gradient(ellipse,#20313a,#101b22)}#film-unavailable>span{font-size:17px;color:#d7e6e2}#film-unavailable p{font-size:11px;max-width:280px;color:#8fa9b5;line-height:1.8;margin:12px 0 19px}#film-unavailable .text-button{font-size:11px}.film-picker{margin:13px 0 0;gap:12px;font-size:10px;color:#9db1b8}.film-picker select{font-size:10px;background:#24343b;border-color:#4e616b;color:#d5e2e0;border-radius:4px;flex:1;min-width:0;padding:7px 8px}#film-caption{font-size:10px;line-height:1.6;color:#a1b5bb;margin:10px 0 0}.film-credit{font-size:8px!important;line-height:1.6!important;color:#7f979f;margin:6px 0 0!important}.film-credit a{color:#abc0c5}.projection-foot{border:0;padding:11px 0 0;gap:6px;font-size:9px;color:#92a9b1;flex-wrap:wrap}.projection-foot .text-button,.color-switch{font-size:9px}.projection-stage{height:310px;border-radius:5px;overflow:hidden}.image-meta{font-size:9px}.image-footer{font-size:9px;bottom:15px}.image-corner{display:none}.carm-panel{padding-top:18px;border-top:1px solid #3c4f57}.carm-heading{display:flex;align-items:center;justify-content:space-between;gap:14px}.carm-heading .eyebrow{font-size:9px;color:#a2b8c1;letter-spacing:1.8px}.carm-heading h2{font-size:13px;font-weight:450;color:#ccdcd9;margin-top:6px}.carm-heading button{font-size:10px;white-space:nowrap;border:1px solid #586f78;background:transparent;padding:7px 9px;border-radius:16px;color:#c0d7d3}.carm-heading button[aria-pressed=true]{background:#3b5555;border-color:#9ec9bc}.carm-visual{position:relative;height:218px;background:radial-gradient(ellipse at 50% 60%,#2b3a40,transparent 72%)}#carm-scene{width:100%;height:100%;display:block;overflow:visible;font-family:ui-sans-serif,system-ui,sans-serif}.carm-legend{position:absolute;right:2px;top:12px;display:flex;flex-direction:column;gap:6px;font-size:8px;color:#b6c8cb;pointer-events:none}.carm-legend span{display:flex;gap:6px;align-items:center}.carm-legend i{width:5px;height:5px;border-radius:2px}.detector-dot{background:#9acdbd}.source-dot{background:#d7b58a}.carm-caption{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:0}.carm-caption output{font:10px ui-monospace,monospace;color:#d3e3de}.carm-caption span{font-size:8px;color:#8ea6af}.carm-note{font-size:8px;color:#839da7;margin-top:8px;line-height:1.5}.control-dock{grid-column:1/-1;grid-row:2;grid-template-columns:185px 1fr 1fr;gap:38px;padding:24px 0;margin-top:27px;border-top:1px solid #46585f;border-bottom:1px solid #46585f}.control-caption .eyebrow{font-size:8px}.control-caption h2{font-size:20px}.control-caption .text-button{font-size:10px}.angle-title>label{font-size:11px}.number-control{background:#26363c;border-color:#5b7079;font-size:12px}.range-labels{font-size:10px;color:#9aaeb6}.learning-notes{display:grid;grid-template-columns:1.15fr 1fr;gap:45px;margin:30px 0 8px}.teaching-panel{padding:0}.teaching-panel h3{font-size:21px;margin-top:14px}.teaching-heading .eyebrow{font-size:10px}.teaching-panel dl{margin-top:10px}.teaching-panel dt{font-size:11px;margin-top:15px}.teaching-panel dd{font-size:12px;line-height:1.7;margin-top:5px;color:#a7bac1}.vessel-section{padding:0 0 0 30px;border:0;border-left:1px solid #40535c;display:block}.vessel-section>div>p{font-size:11px;margin:7px 0 15px}.vessel-section .eyebrow{font-size:10px}#vessel-buttons{gap:7px;margin:18px 0}#vessel-buttons button{font-size:11px;padding:8px 11px;background:#26363d;border-color:#53656d;border-radius:4px}.selected-vessel{margin-top:20px}.selected-vessel strong{font-size:13px}.selected-vessel p{font-size:11px!important;line-height:1.8!important}.educational-note{font-size:10px;margin-top:28px}.educational-note a{font-size:10px}footer{max-width:1800px;padding:20px 32px 27px;border-color:#3d4e57;color:#92a7af;font-size:9px}footer p{font-size:9px}.anatomy-panel.focus-mode{grid-column:1/-1;grid-row:1}.anatomy-panel.focus-mode~.right-column{grid-column:1/-1;grid-row:2;display:grid;grid-template-columns:1fr 1fr;padding:23px 0 0;border-left:0;border-top:1px solid #3b4b52;gap:35px}.anatomy-panel.focus-mode~.right-column .carm-panel{border:0}.anatomy-panel.focus-mode~.control-dock{grid-row:3}.anatomy-panel.focus-mode .anatomy-stage{height:760px;min-height:0}.anatomy-panel.focus-mode .preset{opacity:1;width:170px}.anatomy-panel.focus-mode .preset svg{height:115px}.fallback-note{font-size:9px;color:#b1c4c9}
@media(min-width:1600px){.anatomy-stage{height:730px}.preset{width:157px;padding:13px}.preset svg{height:107px}.preset strong{font-size:13px}.preset span{font-size:9px}.preset.nw,.preset.sw{left:7px}.preset.ne,.preset.se{right:7px}.cine-viewport,.projection-stage{height:358px}.carm-visual{height:239px}.carm-heading h2{font-size:14px}.carm-caption output{font-size:11px}.carm-caption span,.carm-note,.carm-legend{font-size:9px}}
@media(max-width:1250px) and (min-width:1051px){main{padding-left:23px;padding-right:23px}.workspace{grid-template-columns:minmax(0,1.4fr) minmax(330px,.92fr);gap:0 21px}.right-column{padding-left:20px}.preset{width:118px;padding:9px}.preset svg{height:77px}.preset strong{font-size:11px}.preset span{font-size:7px}.preset.nw,.preset.ne{top:47px}.preset.sw,.preset.se{bottom:65px}.anatomy-stage{height:638px}.cine-viewport,.projection-stage{height:287px}.carm-visual{height:213px}.heart-legend{gap:9px;font-size:8px}.panel-head h2{font-size:9px;letter-spacing:1.7px}.camera-mode{font-size:8px}.carm-heading{gap:6px}.carm-heading h2{font-size:11px}.carm-heading button{font-size:9px}.toggle-set{gap:11px}.anatomy-toolbar{justify-content:center}.anatomy-toolbar .text-button{font-size:9px}.learning-notes{gap:30px}}
@media(max-width:1050px){.workspace{grid-template-columns:1fr;gap:0}.anatomy-panel{grid-column:1;grid-row:1}.anatomy-stage{height:650px}.preset{width:150px}.preset svg{height:100px}.preset.nw,.preset.sw{left:17px}.preset.ne,.preset.se{right:17px}.right-column{grid-column:1;grid-row:2;display:grid;grid-template-columns:1.1fr .9fr;gap:30px;margin-top:20px;padding:22px 0 0;border-left:0;border-top:1px solid #3b4b52}.right-column .carm-panel{border-top:0;padding-top:15px}.carm-visual{height:290px}.carm-legend{top:26px}.control-dock{grid-column:1;grid-row:3;grid-template-columns:1fr 1fr;gap:24px}.control-caption{grid-column:1/-1}.learning-notes{gap:26px}.vessel-section{padding-left:24px}.model-info{font-size:10px}.anatomy-panel.focus-mode~.right-column{grid-column:1}.anatomy-panel.focus-mode~.control-dock{grid-column:1}.anatomy-panel.focus-mode .anatomy-stage{height:800px}.carm-caption{flex-wrap:wrap;gap:8px}.carm-note{margin-top:11px}.header{padding:0 25px}.header-tag{display:none}.header nav button{padding:7px 12px}.intro h1{font-size:24px}.projection-tabs{gap:20px}}
@media(max-width:700px){main{padding:22px 18px 0}.header{padding:0 18px}.right-column{gap:22px;grid-template-columns:1.1fr .9fr}.carm-heading{display:block}.carm-heading button{margin-top:12px}.carm-heading h2{font-size:12px}.carm-visual{height:220px}.cine-viewport,.projection-stage{height:270px}.film-picker{display:block}.film-picker label{display:block;margin-bottom:6px}.film-picker select{width:100%}.carm-legend{font-size:7px;top:14px}.learning-notes{grid-template-columns:1fr}.vessel-section{padding:22px 0 0;border-left:0;border-top:1px solid #40535c}.intro h1{font-size:23px}.model-info{max-width:155px;font-size:9px}.header nav button{font-size:10px;padding:7px 10px}.header nav{gap:10px}.brand{font-size:18px}.brand span{font-size:8px}.tour-button{font-size:10px}.control-dock{gap:22px}.axis-label.rao,.axis-label.lao{display:none}.teaching-panel h3{font-size:20px}.preset{width:133px}.preset svg{height:86px}.preset.nw,.preset.sw{left:5px}.preset.ne,.preset.se{right:5px}}
@media(max-width:640px){.intro{display:block}.intro h1{max-width:340px;line-height:1.35}.intro p{font-size:11px;max-width:340px}.intro .eyebrow{font-size:8px}.tour-button{margin-top:14px}.workspace-top{gap:10px;align-items:center;padding-bottom:13px}.segmented button{min-width:0;font-size:10px;padding:7px 12px}.model-info{font-size:8px;max-width:122px}.model-info .divider{display:none}.panel-head{padding:13px 0}.panel-head h2{font-size:9px;letter-spacing:1.8px}.small-badge{font-size:8px;padding:4px 5px}.anatomy-viewbar{padding:6px 0 10px}.anatomy-viewbar .text-button{font-size:0}.anatomy-viewbar .text-button:first-letter{font-size:19px}.anatomy-stage{height:850px}.preset{width:calc(50% - 20px);max-width:170px;padding:10px}.preset.nw,.preset.ne{top:27px}.preset.sw,.preset.se{bottom:26px}.preset.nw,.preset.sw{left:2px}.preset.ne,.preset.se{right:2px}.preset svg{height:92px;margin-top:7px}.preset strong{font-size:12px}.preset span{font-size:8px}.axis-label.cranial{top:7px}.axis-label.caudal{bottom:7px}.heart-legend{top:215px;font-size:9px;gap:17px}#model-canvas{top:204px;bottom:204px}.view-indicator{bottom:211px;padding:7px 10px;min-width:155px}.zoom-controls{right:5px;bottom:218px;left:auto}.zoom-controls button{width:25px;height:25px}#patient-axes{left:1px;bottom:213px;width:53px;height:47px}.anatomy-toolbar{padding:14px 0;justify-content:center;gap:15px}.toggle-set{gap:12px;justify-content:center}.toggle-set label{font-size:9px}.anatomy-toolbar .text-button{font-size:10px}.model-bottom{padding:9px 0;font-size:9px;justify-content:center;gap:11px;flex-wrap:wrap}.opacity-label input{width:87px}.right-column,.anatomy-panel.focus-mode~.right-column{display:flex;flex-direction:column;gap:22px;padding-top:10px;margin-top:13px}.cine-viewport,.projection-stage{height:310px}.cine-meta{font-size:9px}.film-picker{display:flex;align-items:center;gap:9px}.film-picker label{margin:0;white-space:nowrap}.film-picker select{width:auto}.projection-tabs button{font-size:11px}.film-caption{font-size:10px}.projection-foot{font-size:9px}.carm-heading{display:flex;align-items:center;gap:12px}.carm-heading button{margin-top:0;font-size:10px}.right-column .carm-panel{border-top:1px solid #3b4b52;padding-top:19px}.carm-heading h2{font-size:14px}.carm-visual{height:255px}.carm-legend{font-size:9px;top:20px}.carm-caption output{font-size:11px}.carm-caption span{font-size:9px}.carm-note{font-size:9px}.control-dock{grid-template-columns:1fr;padding:22px 0;margin-top:24px;gap:26px}.control-caption{grid-column:1}.control-caption h2{font-size:20px}.number-control{font-size:12px}.range-labels{font-size:10px}.learning-notes{margin-top:25px;gap:25px}.vessel-section{padding-top:25px}footer{padding:20px 18px;font-size:9px}footer p{font-size:9px}.educational-note{font-size:10px}.anatomy-panel.focus-mode .anatomy-stage{height:1020px;min-height:0}.anatomy-panel.focus-mode #model-canvas{top:204px;bottom:204px}.anatomy-panel.focus-mode .preset{width:calc(50% - 20px);max-width:170px;opacity:1}.anatomy-panel.focus-mode .preset svg{height:92px}.anatomy-panel.focus-mode~.right-column .carm-panel{border-top:1px solid #3b4b52}}
@media(prefers-reduced-motion:reduce){.preset{transition:none}.preset:hover{transform:none}}
/* Compact C-arm joystick replaces the full-width acquisition slider dock. */
.carm-console{display:flex;align-items:center;gap:20px;margin-top:6px;padding-bottom:24px}.carm-console-copy{flex:1;min-width:0}.carm-console .carm-caption{display:flex;flex-direction:column;align-items:flex-start;gap:7px;margin:0}.carm-console .carm-caption output{font-size:10px;line-height:1.5;white-space:normal}.carm-console .carm-caption span{font-size:8px}.carm-console .carm-note{font-size:9px;line-height:1.7;margin:9px 0}.carm-console #reset{font-size:9px}.pan-dial{position:relative;flex:0 0 116px;width:116px;height:116px;border:1px solid #789091;border-radius:50%;background:radial-gradient(circle,#7d9896 0 24%,#1b292e 26% 43%,#435b62 45% 63%,#273b43 65%);box-shadow:inset 0 1px 5px #d1e3dc30,0 3px 12px #09151a40;touch-action:none;user-select:none;-webkit-user-select:none}.pan-dial:before{content:"";position:absolute;inset:7px;border:1px solid #96ada83d;border-radius:50%;pointer-events:none}.pan-direction{position:absolute;border:0;padding:0;background:transparent;border-radius:12px;color:#d6e5df;font-size:9px;font-weight:600;letter-spacing:.7px;touch-action:none;user-select:none;-webkit-user-select:none}.pan-direction:hover,.pan-direction.pressed{background:#aecfc435;color:#f1faf6}.pan-direction:disabled{opacity:.28}.pan-direction:focus-visible{outline:2px solid #d8eee4;outline-offset:0}.pan-lao,.pan-rao{left:33px;width:48px;height:33px}.pan-lao{top:1px;border-radius:40% 40% 8px 8px}.pan-rao{bottom:1px;border-radius:8px 8px 40% 40%}.pan-cran,.pan-caud{top:33px;width:33px;height:48px}.pan-cran{left:1px;border-radius:40% 8px 8px 40%}.pan-caud{right:1px;border-radius:8px 40% 40% 8px}.pan-name,.pan-arrow{position:absolute;display:block}.pan-lao .pan-name{top:7px;left:0;right:0;text-align:center}.pan-lao .pan-arrow{bottom:1px;left:0;right:0;text-align:center}.pan-rao .pan-name{bottom:6px;left:0;right:0;text-align:center}.pan-rao .pan-arrow{top:1px;left:0;right:0;text-align:center}.pan-cran .pan-name{writing-mode:vertical-rl;transform:rotate(180deg);left:6px;top:0;bottom:0;text-align:center}.pan-caud .pan-name{writing-mode:vertical-rl;right:6px;top:0;bottom:0;text-align:center}.pan-cran .pan-arrow{right:0;top:18px}.pan-caud .pan-arrow{left:0;top:18px}.pan-arrow{font-size:8px;color:#b9d6ca}.pan-center{position:absolute;left:35px;top:35px;width:44px;height:44px;padding:8px;border:1px solid #c2d9cb80;border-radius:50%;background:radial-gradient(circle at 35% 28%,#66827e,#304c4e);box-shadow:0 2px 5px #071417a6,inset 0 1px 2px #e4efdf3d;cursor:grab;touch-action:none;user-select:none;-webkit-user-select:none;z-index:2;transition:background .15s,box-shadow .15s}.pan-center:hover{background:#5b7973}.pan-center.dragging{cursor:grabbing;box-shadow:0 3px 9px #071417c9}.pan-center svg{display:block;width:100%;height:100%;fill:none;stroke:#d9e6da;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}.pan-center:focus-visible{outline:2px solid #e0efe6;outline-offset:2px}.learning-notes{padding-top:27px;border-top:1px solid #46585f;margin-top:29px}@media(max-width:1250px){.carm-console{gap:14px}.carm-console .carm-caption output{font-size:9px}.carm-console .carm-note{font-size:8px}}@media(max-width:1050px){.carm-console{gap:16px}}@media(max-width:700px) and (min-width:641px){.carm-console{gap:10px;flex-wrap:wrap}.carm-console-copy{flex-basis:130px}}@media(max-width:640px){.carm-console{gap:22px;margin-top:7px}.carm-console .carm-caption output{font-size:11px}.carm-console .carm-caption span,.carm-console .carm-note,.carm-console #reset{font-size:9px}.learning-notes{margin-top:27px;padding-top:25px}}@media(prefers-reduced-motion:reduce){.pan-center{transition:none}}

/* Three right coronary views: straight obliques and the caudal ostial view. */
.preset.w{left:2px;top:30%;bottom:auto;transform:none}.preset.e{right:2px;top:30%;bottom:auto;transform:none}.preset.w:hover,.preset.e:hover{transform:translateY(-2px)}
.anatomy-stage[data-coronary-system="R"] .axis-label.rao,.anatomy-stage[data-coronary-system="R"] .axis-label.lao{display:none}
@media(min-width:1600px){.preset.w{left:7px}.preset.e{right:7px}}
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