.anim3d{flex-direction:column;gap:14px;display:flex}.anim3d-heading h3{letter-spacing:-.02em;margin:4px 0 8px;font:400 clamp(22px,2.4vw,30px)/1.25 Georgia,serif}.anim3d-heading p:last-child{color:var(--muted);max-width:76ch;margin:0;font-size:14px;line-height:1.6}.anim3d-layout{border:1px solid var(--line);background:#fff;border-radius:8px;grid-template-columns:minmax(0,1.7fr) minmax(260px,1fr);display:grid;overflow:hidden}.anim3d-stage{color:#e4ecec;background:#0c2029;min-width:0}.anim3d-stage-top{border-bottom:1px solid #27404a;justify-content:space-between;align-items:center;gap:15px;padding:14px 20px;font-size:12px;display:flex}.anim3d-stage-top span:first-child{letter-spacing:.04em;font-weight:600}.anim3d-stage-top span:last-child{color:#a7bfc8}.anim3d-render{height:480px}.anim3d-transport{flex-wrap:wrap;align-items:center;gap:8px;padding:14px 18px 4px;display:flex}.anim3d-transport button,.anim3d-speed button{color:#edf4f4;min-height:44px;font:inherit;background:#18333e;border:1px solid #43606b;border-radius:4px;padding:8px 12px;font-size:12px}.anim3d-transport button:hover,.anim3d-speed button:hover{background:#294b58}.anim3d-transport button[aria-pressed=true],.anim3d-speed button[aria-pressed=true]{color:#ffdfad;border-color:#d6b781}.anim3d-speed{gap:4px;display:inline-flex}.anim3d-speed button{min-width:44px;padding:8px 6px}.anim3d-progress{accent-color:#efc28c;flex:120px;min-width:100px;height:6px}.anim3d-camera{padding-top:8px}.anim3d-panel{flex-direction:column;gap:14px;min-width:0;padding:20px;display:flex}.anim3d-panel .anatomy-modes{margin:0}.anim3d-clip{color:var(--muted);font-size:12px;display:block}.anim3d-clip select{width:100%;font:inherit;color:var(--ink);border:1px solid var(--line);background:#fff;border-radius:5px;min-height:44px;margin-top:6px;padding:8px 10px;font-size:13px;display:block}.anim3d-layers{border:0;margin:0;padding:0;font-size:12px}.anim3d-layers legend{color:var(--muted);margin-bottom:6px}.anim3d-layer{flex-wrap:wrap;align-items:center;gap:6px 14px;min-height:36px;display:flex}.anim3d-layer>label{align-items:center;gap:8px;display:flex}.anim3d-opacity{align-items:center;gap:8px;display:inline-flex}.anim3d-opacity input{width:110px;accent-color:var(--accent)}.anim3d-opacity span{min-width:38px;color:var(--muted)}.anim3d input[type=checkbox]{accent-color:var(--accent);width:17px;height:17px}.anim3d-panel .anatomy-select{margin:0}.anim3d-actions{flex-wrap:wrap;align-items:center;gap:6px 14px;display:flex}.anim3d-actions button,.anim3d-step-nav button,.anim3d-steps button{border:1px solid var(--line);min-height:44px;font:inherit;color:var(--ink);text-align:left;background:#fff;border-radius:4px;padding:9px 12px;font-size:12px}.anim3d-actions button:disabled,.anim3d-step-nav button:disabled{opacity:.42;cursor:default}.anim3d-panel .anatomy-selection{margin-top:6px;padding-top:14px}.anim3d-panel .anatomy-selection h4{margin:0 0 4px;font-size:19px;line-height:1.35}.anim3d-fma{color:var(--muted);margin:0;font-size:12px}.anim3d-muscles{border-top:1px solid var(--line);padding-top:12px;font-size:13px;line-height:1.6}.anim3d-muscles p{margin:0 0 4px}.anim3d-steps{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.anim3d-steps button{align-items:center;gap:10px;width:100%;display:flex}.anim3d-steps button span{background:var(--pale);border-radius:50%;flex:none;place-items:center;width:24px;height:24px;font-size:11px;display:inline-grid}.anim3d-steps button[aria-current=step]{background:var(--ink);color:#fff;border-color:var(--ink)}.anim3d-steps button[aria-current=step] span{color:var(--ink);background:#efc28c}.anim3d-step-text h4{margin:0 0 6px;font-size:19px;line-height:1.35}.anim3d-step-text p{min-height:5em;margin:0;font-size:15px;line-height:1.7}.anim3d-step-nav{gap:6px;display:flex}.anim3d-credits{margin-top:4px}@media (max-width:1150px){.anim3d-layout{grid-template-columns:1fr}.anim3d-panel{border-top:1px solid var(--line)}.anim3d-render{height:440px}}@media (max-width:760px){.anim3d-render{height:340px}.anim3d-stage-top{padding:12px 14px}.anim3d-transport{padding:12px 12px 4px}.anim3d-panel{padding:16px}.anim3d-opacity input{width:90px}}.anim3d-flow-legend{color:var(--muted);margin:0;font-size:12px;line-height:1.6}.anim3d-flow-legend small{font-size:11px}.anim3d-flow-dot{vertical-align:middle;border-radius:50%;width:10px;height:10px;display:inline-block}.anim3d-flow-dot.is-pulmonary{background:#5b8de0}.anim3d-flow-dot.is-systemic{background:#d9493c}
.block-list{gap:12px;margin:0 0 48px;padding:0;list-style:none;display:grid}.block-card{border:1px solid var(--line);background:#fff;border-radius:8px;grid-template-columns:56px minmax(0,1fr) 24px;align-items:start;gap:18px;padding:20px 22px;display:grid}.block-card:hover{border-color:var(--accent);text-decoration:none}.block-card h2{margin:8px 0 6px;font-size:20px}.block-card p{color:var(--muted);margin-bottom:10px;font-size:15px}.block-features{flex-wrap:wrap;gap:6px;margin-bottom:8px;display:flex}.block-features span{background:var(--pale);color:var(--ink);border-radius:999px;padding:2px 10px;font-size:12px}.block-features .is-animation{background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--accent-ink,var(--ink));align-items:center;gap:5px;font-weight:600;display:inline-flex}.block-features .is-animation span{background:0 0;padding:0;font-size:10px;line-height:1}.concept-list-title{margin-top:12px}.sidebar-blocks{border-left:2px solid var(--line);flex-direction:column;gap:2px;margin:6px 0 20px 8px;padding-left:10px;display:flex}.sidebar-blocks a{color:var(--muted);border-radius:4px;gap:8px;padding:6px;font-size:13px;line-height:1.35;display:flex}.sidebar-blocks a span{font-variant-numeric:tabular-nums;color:var(--accent);font-weight:600}.sidebar-blocks a[aria-current=page]{background:var(--pale);color:var(--ink);font-weight:600}.lesson{max-width:1100px}.lesson-heading h1{margin-bottom:14px}.lesson-meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px;font-size:13px;display:flex}.lesson-subject small{font-variant-numeric:tabular-nums;opacity:.7;margin-left:3px}.lesson-steps{z-index:5;background:var(--paper);border-bottom:1px solid var(--line);flex-wrap:wrap;gap:8px;margin:22px 0 8px;padding:10px 0;display:flex;position:sticky;top:0}.lesson-steps a{border:1px solid var(--line);background:#fff;border-radius:999px;align-items:center;gap:8px;min-height:44px;padding:8px 14px;font-size:14px;display:inline-flex}.lesson-steps a span,.lesson-step-number{background:var(--accent);color:#fff;border-radius:50%;flex:none;place-items:center;width:24px;height:24px;font-size:12px;font-weight:700;display:inline-grid}.lesson-section{border-top:1px solid var(--line);margin-top:28px;padding:36px 0 12px;scroll-margin-top:70px}.lesson-section>h2{align-items:center;gap:12px;font-family:Georgia,serif;font-size:clamp(26px,3vw,34px);font-weight:400;display:flex}.lesson-section>h2 .lesson-step-number{width:32px;height:32px;font-family:Segoe UI,sans-serif;font-size:15px}.lesson-intro{color:var(--muted);max-width:720px}.goal ul{margin:6px 0 0;padding-left:20px}.lesson-text{max-width:820px}.lesson-text h3{margin-bottom:12px;font-size:21px}.lesson-paragraph{margin-bottom:16px}.lesson-paragraph p{margin-bottom:6px;font-size:17px;line-height:1.7}.lesson-paragraph.complement{background:#f1f5ee;border-left:4px solid #7ea08a;border-radius:0 6px 6px 0;padding:12px 16px}.lesson-paragraph.caution{background:#fbf3e6;border-left:4px solid #c98a2b;border-radius:0 6px 6px 0;padding:12px 16px}.paragraph-kind{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:4px;font-size:11px;font-weight:700;display:inline-block}.extras-switch{flex-direction:column;gap:4px;margin:0 0 18px;display:flex}.extras-switch button{color:var(--ink);background:#f1f5ee;border:1px solid #d6e2d8;border-radius:999px;align-self:flex-start;align-items:center;gap:8px;min-height:40px;padding:7px 14px;font-size:14px;display:flex}.extras-switch button:hover{background:#e7eee6}.extras-switch button strong{letter-spacing:.04em;text-transform:uppercase;color:var(--muted);font-size:12px;font-weight:700}.extras-switch button[aria-pressed=false] .extras-dot{border-color:var(--muted);background:0 0}.extras-dot{background:#7ea08a;border:2px solid #7ea08a;border-radius:50%;width:10px;height:10px}.extras-switch p{color:var(--muted);max-width:60ch;margin:0;font-size:13px}.lesson-text.extras-hidden .lesson-paragraph.complement{display:none}.lesson-terms{border:1px solid var(--line);background:#fff;border-radius:8px;max-width:820px;margin:22px 0;padding:14px 18px}.lesson-terms summary,.figure-labels summary{cursor:pointer;min-height:32px;font-weight:600}.lesson-terms table,.figure-labels table{border-collapse:collapse;width:100%;margin-top:8px;font-size:14px}.lesson-terms th,.lesson-terms td,.figure-labels th,.figure-labels td{text-align:left;border-top:1px solid var(--line);vertical-align:top;padding:6px 8px}.lesson-terms th,.figure-labels th{color:var(--muted);font-size:12px;font-weight:600}.lesson-concepts{flex-wrap:wrap;align-items:center;gap:8px;margin-top:12px;display:flex}.lesson-concepts .small-label{width:100%;margin:0}.lesson-concepts a{border:1px solid var(--line);background:#fff;border-radius:6px;align-items:center;gap:6px;min-height:44px;padding:8px 12px;font-size:14px;display:inline-flex}.lesson-concepts small{color:var(--muted)}.audio-summary{border:1px solid var(--line);background:#fff;border-radius:10px;max-width:820px;padding:20px 22px}.audio-controls{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.audio-controls button,.audio-rate select{border:1px solid var(--line);min-height:44px;color:var(--ink);background:#fff;border-radius:6px;padding:8px 12px;font-size:14px}.audio-controls .audio-play{background:var(--accent);border-color:var(--accent);color:#fff;align-items:center;gap:10px;padding:8px 18px;font-weight:600;display:inline-flex}.audio-controls button:disabled{opacity:.5;cursor:not-allowed}.audio-position{flex:200px;display:flex}.audio-position input{width:100%;accent-color:var(--accent);min-height:44px}.audio-time{font-variant-numeric:tabular-nums;color:var(--muted);font-size:14px}.audio-rate{color:var(--muted);align-items:center;gap:6px;font-size:13px;display:inline-flex}.audio-meta{color:var(--muted);margin:12px 0 16px;font-size:12px}.audio-meta a{text-decoration:underline}.audio-warning{background:#fbf3e6;border-radius:6px;padding:10px 12px;font-size:14px}.audio-transcript{gap:2px;margin:6px 0 0;padding:0;list-style:none;display:grid}.audio-transcript button{text-align:left;width:100%;color:var(--ink);background:0 0;border:0;border-radius:6px;gap:12px;min-height:44px;padding:8px 10px;font-size:15px;line-height:1.5;display:flex}.audio-transcript button:hover{background:var(--pale)}.audio-transcript li[aria-current=true] button{box-shadow:inset 3px 0 0 var(--accent);background:#e3efe6}.audio-transcript button{flex-wrap:wrap}.audio-aside{color:var(--muted);flex-basis:100%;padding-left:56px;font-size:14px;font-style:italic}.audio-speaker{margin-right:6px;font-weight:600}.audio-voice{align-items:center;gap:8px;margin-bottom:10px;font-size:14px;display:inline-flex}.audio-voice select{border:1px solid var(--line);min-height:44px;color:var(--ink);background:#fff;border-radius:6px;padding:6px 10px}.audio-conversation{max-width:820px;margin-top:22px}.audio-conversation h3{flex-direction:column;gap:2px;margin-bottom:10px;font-size:19px;display:flex}.audio-summary h4{margin:0}.audio-stamp{font-variant-numeric:tabular-nums;color:var(--muted);flex:none;width:34px;padding-top:3px;font-size:12px}.figure-note{color:var(--muted);font-size:13px}.figure-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));align-items:start;gap:18px;display:grid}.figure-card{border:1px solid var(--line);background:#fff;border-radius:8px;margin:0;overflow:hidden}.figure-thumb{border:0;border-bottom:1px solid var(--line);cursor:zoom-in;background:#fff;width:100%;padding:12px;display:block}.figure-thumb img{object-fit:contain;width:100%;height:230px;display:block}.figure-card figcaption{padding:12px 14px 6px;font-size:14px;line-height:1.5}.figure-card figcaption small{color:var(--muted);margin-top:6px;font-size:11px;display:block}.figure-number{color:var(--accent);font-variant-numeric:tabular-nums;margin-right:8px;font-weight:700}.figure-review{background:#fbf3e6;border-radius:4px;margin-top:8px;padding:6px 8px;font-size:13px;display:block}.figure-labels{padding:0 14px 12px;font-size:13px}.figure-dialog{border:0;border-radius:10px;width:min(1200px,96vw);max-height:94vh;padding:0}.figure-dialog::backdrop{background:#0c2029b8}.figure-dialog-body{flex-direction:column;max-height:94vh;display:flex}.figure-dialog-bar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;font-size:14px;display:flex}.figure-dialog-bar div{flex:none;gap:6px;display:flex}.figure-dialog-bar button{border:1px solid var(--line);min-width:44px;min-height:44px;color:var(--ink);background:#fff;border-radius:6px}.figure-dialog-image{background:#fff;flex:1;justify-content:center;display:flex;overflow:auto}.figure-dialog-image img{object-fit:contain;cursor:zoom-in;max-width:100%;max-height:78vh}.figure-dialog-image.zoomed{display:block}.figure-dialog-image.zoomed img{cursor:zoom-out;width:auto;max-width:none;max-height:none}.figure-dialog .figure-labels{border-top:1px solid var(--line);max-height:30vh;padding:10px 14px;overflow:auto}.lesson-pager{border-top:1px solid var(--line);grid-template-columns:1fr auto 1fr;align-items:stretch;gap:12px;margin:40px 0 20px;padding-top:24px;display:grid}.lesson-pager>a{border:1px solid var(--line);background:#fff;border-radius:8px;flex-direction:column;gap:2px;min-height:44px;padding:12px 16px;display:flex}.lesson-pager a[rel=next]{text-align:right}.lesson-pager small{color:var(--muted)}.lesson-pager .lesson-index{text-align:center;justify-content:center;font-size:14px}@media (max-width:760px){.block-card{grid-template-columns:40px minmax(0,1fr);padding:16px}.block-card .arrow{display:none}.lesson-steps{position:static}.lesson-steps a{padding:6px 10px;font-size:13px}.figure-grid,.lesson-pager{grid-template-columns:1fr}.lesson-pager a[rel=next]{text-align:left}.audio-summary{padding:16px}.figure-dialog-bar{flex-direction:column;align-items:stretch}}.a2d-section{border-top:1px solid var(--line);margin-top:34px;padding-top:24px}.a2d-section h3{margin-bottom:6px;font-size:18px}.a2d-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));align-items:start;gap:18px;display:grid}.a2d-card{border:1px solid var(--line);background:#fff;border-radius:8px;flex-direction:column;margin:0;display:flex;overflow:hidden}.a2d-thumb{border:0;border-bottom:1px solid var(--line);cursor:zoom-in;background:#fff;width:100%;min-height:44px;padding:12px;display:block}.a2d-thumb img{object-fit:contain;width:100%;height:230px;display:block}.a2d-card figcaption{padding:12px 14px 4px;font-size:14px;line-height:1.5;display:block}.a2d-title{font-weight:600;display:block}.a2d-title small{color:var(--muted);margin-top:2px;font-size:12px;font-weight:400;display:block}.a2d-description{color:var(--ink);margin-top:8px;display:block}.a2d-attribution{color:var(--muted);margin-top:10px;font-size:11px;line-height:1.45;display:block}.a2d-links{flex-wrap:wrap;gap:8px;margin:0;padding:6px 14px 0;display:flex}.a2d-links a{min-height:44px;color:var(--accent);border:1px solid var(--line);border-radius:6px;align-items:center;padding:10px 12px;font-size:13px;font-weight:600;display:inline-flex}.a2d-credit{margin-top:auto;padding:8px 14px 12px;font-size:12px}.a2d-credit summary{min-height:44px;color:var(--muted);cursor:pointer;align-items:center;display:flex}.a2d-credit p{color:var(--muted);overflow-wrap:anywhere;margin:4px 0;line-height:1.5}.a2d-credit a{text-underline-offset:3px;min-height:44px;color:var(--accent);align-items:center;padding:0 10px 0 0;text-decoration:underline;display:inline-flex}.a2d-credit-links{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.a2d-dialog{border:0;border-radius:10px;width:min(1200px,96vw);max-height:94vh;padding:0}.a2d-dialog::backdrop{background:#0c2029b8}.a2d-dialog-body{flex-direction:column;max-height:94vh;display:flex}.a2d-dialog-bar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;font-size:14px;display:flex}.a2d-dialog-bar small{color:var(--muted)}.a2d-dialog-bar div{flex:none;gap:6px;display:flex}.a2d-dialog-bar button{border:1px solid var(--line);min-width:44px;min-height:44px;color:var(--ink);background:#fff;border-radius:6px}.a2d-dialog-bar button[aria-pressed=true]{background:var(--ink);color:#fff}.a2d-dialog-image{background:#fff;flex:1;justify-content:center;display:flex;overflow:auto}.a2d-dialog-image img{object-fit:contain;cursor:zoom-in;max-width:100%;max-height:72vh}.a2d-dialog-image.zoomed{display:block}.a2d-dialog-image.zoomed img{cursor:zoom-out;width:auto;max-width:none;max-height:none}.a2d-dialog-foot{border-top:1px solid var(--line);max-height:26vh;padding:10px 14px;overflow:auto}.a2d-dialog-foot p{margin:0 0 6px;font-size:14px}.a2d-dialog-foot small{color:var(--muted);font-size:11px;line-height:1.45;display:block}@media (max-width:760px){.a2d-grid{grid-template-columns:1fr}.a2d-dialog-bar{flex-direction:column;align-items:stretch}.a2d-links a{flex:auto;justify-content:center}}.lesson-meta{flex-wrap:wrap;align-items:center;gap:10px}.lesson-position{color:var(--accent-ink);background:var(--pale);border-radius:999px;padding:6px 12px;font-size:12px;font-weight:650}.lesson-body-link{color:var(--accent-ink);border:1px solid var(--line);border-radius:999px;align-items:center;gap:6px;padding:6px 12px;font-size:12px;font-weight:600;display:inline-flex}.lesson-body-link:hover{border-color:var(--accent);background:var(--pale);text-decoration:none}.lesson-progress{background:var(--pale);border-radius:999px;max-width:520px;height:4px;margin:14px 0 0;overflow:hidden}.lesson-progress i{background:var(--accent);border-radius:999px;height:100%;display:block}.lesson-steps{z-index:10;background:color-mix(in srgb,var(--paper) 88%,transparent);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);margin-top:20px;padding:8px 0;position:sticky;top:78px}.body-map-item.is-highlight,li.is-highlight>.body-map-item{border-color:var(--accent);background:var(--pale)}@media (max-width:760px){.lesson-steps{top:0}}.resource-block{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin:18px 0 26px;overflow:hidden}.resource-head{background:var(--pale);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 18px;padding:12px 16px;display:flex}.resource-head .small-label{margin:0}.resource-tabs{flex-wrap:wrap;gap:6px;display:flex}.resource-tabs button{border:1px solid var(--line);background:var(--surface);color:inherit;font:inherit;border-radius:999px;min-height:44px;padding:9px 18px;font-size:13px;font-weight:600}.resource-tabs button:hover{border-color:var(--accent)}.resource-tabs button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}.resource-close{color:var(--muted);font-weight:500!important}.resource-panel{padding:16px}.resource-panel .anatomy-lab,.resource-panel .a2d{margin:0}.anim{flex-direction:column;gap:10px;display:flex}.anim h3{margin:0;font-size:20px}.anim-intro{color:var(--muted);max-width:72ch;margin:0;font-size:14px}.anim-stage{border-radius:var(--radius);background:#0f2a24;place-items:center;padding:10px;display:grid}.anim-svg{width:100%;max-width:420px;height:auto;display:block}.anim-chambers path,.anim-chambers rect,.anim-chambers ellipse,.anim-chambers circle{fill:#1d4438;stroke:#3f6d5d;stroke-width:1.5px}.anim-chambers .anim-outline{fill:none}.anim-labels text{fill:#8fb3a6;text-anchor:middle;font-size:11px}.anim-part{opacity:.28;transition:opacity .35s}.anim-part circle,.anim-part rect,.anim-part ellipse{fill:#e7c76a}.anim-part path{fill:none;stroke:#e7c76a;stroke-width:3px;stroke-linecap:round}.anim-part .anim-solid{fill:#f0e3c0;stroke:none}.anim-part.anim-line path{fill:none;stroke:#e7c76a;stroke-width:3px;stroke-linecap:round}.anim-part .anim-tag{fill:#f0e3c0;text-anchor:middle;font-size:11px}.anim-part.is-on{opacity:1}.anim-part.is-now circle,.anim-part.is-now rect,.anim-part.is-now ellipse{fill:#ffd97a}.anim-part.is-now path{stroke:#ffd97a}.anim-part.is-now.anim-line path{stroke:#ffd97a;stroke-width:4.5px;stroke-dasharray:10 8;animation:1.1s linear infinite anim-run}.anim-note{fill:#7f9c92;text-anchor:middle;font-size:10px}@keyframes anim-run{to{stroke-dashoffset:-36px}}.anim-controls{flex-wrap:wrap;align-items:center;gap:10px 18px;display:flex}.anim-transport button,.anim-speed button,.anim-steps button{border:1px solid var(--line);background:var(--surface);color:inherit;font:inherit;border-radius:999px;min-height:44px;padding:9px 14px;font-size:13px}.anim-transport,.anim-speed,.anim-steps{align-items:center;gap:6px;display:inline-flex}.anim-speed button[aria-pressed=true],.anim-transport button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}.anim-transport button:disabled,.anim-steps button:disabled{opacity:.45}.anim-count{color:var(--muted);white-space:nowrap;padding:0 6px;font-size:13px}.anim-dots{gap:8px;margin:0;padding:0;list-style:none;display:flex}.anim-dots li{background:var(--pale);border-radius:999px;width:26px;height:5px}.anim-dots li.is-done{background:color-mix(in srgb,var(--accent) 55%,transparent)}.anim-dots li.is-now{background:var(--accent)}.anim-text{max-width:70ch;min-height:3.4em;margin:0;font-size:17px;line-height:1.7}.anim-note-reduced,.anim-source{color:var(--muted);margin:0;font-size:12px}.anim-list summary{cursor:pointer;color:var(--muted);padding:8px 0;font-size:13px}.anim-list ol{flex-direction:column;gap:6px;margin:0;padding-left:20px;display:flex}.anim-list button{color:inherit;font:inherit;text-align:left;text-underline-offset:4px;background:0 0;border:0;padding:6px 0;font-size:14px;text-decoration:underline}@media (prefers-reduced-motion:reduce){.anim-part.is-now.anim-line path{animation:none}}.credits{max-width:900px}.credit-list,.credit-pending{flex-direction:column;gap:16px;margin:0 0 40px;padding:0;list-style:none;display:flex}.credit-card{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:20px 22px}.credit-card h2{margin:6px 0 2px;font-size:20px}.credit-author{color:var(--muted);margin:0 0 10px;font-size:14px}.credit-line{margin:0 0 6px;font-size:14px}.credit-line .small-label{margin-right:8px}.credit-attribution{color:var(--muted);margin:10px 0 0;font-size:13px;line-height:1.55}.credit-note{color:var(--muted);margin:8px 0 0;font-size:13px}.credit-pending li{border-left:3px solid var(--line);color:var(--muted);padding:6px 0 6px 14px;font-size:14px}.credit-pending-title{margin-top:8px}
.anatomy-lab{margin:40px 0 54px;scroll-margin-top:20px}.anatomy-heading{justify-content:space-between;align-items:end;gap:24px;margin-bottom:23px;display:flex}.anatomy-heading h2{letter-spacing:-.025em;margin-bottom:12px;font:400 clamp(28px,3vw,40px)/1.2 Georgia,serif}.anatomy-heading p:last-child{color:var(--muted);margin-bottom:0;font-size:14px}.anatomy-heading>label{min-width:155px;color:var(--muted);font-size:11px}.anatomy-lab select{font:inherit;color:var(--ink);border:1px solid var(--line);background:#fff;border-radius:5px;max-width:100%;min-height:44px;padding:9px 10px}.anatomy-heading select{width:100%;margin-top:6px;font-size:14px;display:block}.anatomy-layout{border:1px solid var(--line);background:#fff;border-radius:8px;grid-template-columns:minmax(0,1.8fr) minmax(270px,1fr);display:grid;overflow:hidden}.anatomy-stage{color:#e4ecec;background:#0c2029;min-width:0}.anatomy-stage-top,.anatomy-stage-bottom{justify-content:space-between;align-items:center;gap:15px;padding:17px 22px;font-size:12px;display:flex}.anatomy-stage-top{border-bottom:1px solid #27404a}.anatomy-stage-top span:first-child{letter-spacing:.04em;font-weight:600}.anatomy-stage-top span:last-child{color:#a7bfc8}.anatomy-stage-bottom{border-top:1px solid #27404a;flex-wrap:wrap;min-height:60px}.anatomy-stage-bottom span:first-child{color:#efc28c}.anatomy-stage-bottom span:last-child{color:#a7bfc8;font-size:10px}.anatomy-render{isolation:isolate;height:510px;position:relative}.anatomy-canvas{width:100%;height:100%}.anatomy-canvas canvas{touch-action:none;outline-offset:-5px;width:100%;height:100%;display:block}.anatomy-canvas canvas:focus-visible{outline:3px solid #efc28c}.anatomy-overlay{text-align:center;z-index:2;background:#0c2029;flex-direction:column;justify-content:center;align-items:center;gap:15px;margin:0;padding:36px;font-size:14px;display:flex;position:absolute;inset:0}.anatomy-overlay a{text-decoration:underline}.anatomy-camera{flex-wrap:wrap;gap:6px;padding:16px 18px 8px;display:flex}.anatomy-camera button,.anatomy-overlay button{color:#edf4f4;min-height:44px;font:inherit;background:#18333e;border:1px solid #43606b;border-radius:4px;padding:8px 12px;font-size:11px}.anatomy-camera button:hover{background:#294b58}.anatomy-camera button[aria-pressed=true]{color:#ffdfad;border-color:#d6b781}.anatomy-lab button:disabled{opacity:.42;cursor:default}.anatomy-help{color:#a7bfc8;margin:0;padding:12px 22px 20px;font-size:11px;line-height:1.7}.anatomy-panel{min-width:0;padding:23px}.anatomy-modes{flex-wrap:wrap;gap:5px;margin:22px 0;display:flex}.anatomy-modes button,.anatomy-focus,.anatomy-flow-controls button{border:1px solid var(--line);min-height:44px;font:inherit;color:var(--ink);background:#fff;border-radius:4px;padding:9px 12px;font-size:12px}.anatomy-modes button[aria-pressed=true],.anatomy-flow-controls button[aria-pressed=true]{background:var(--ink);color:#fff}.anatomy-layers{border:0;margin:0 0 20px;padding:0;font-size:12px}.anatomy-layers legend{color:var(--muted);margin-bottom:7px}.anatomy-layers label{align-items:center;gap:8px;min-height:36px;display:flex}.anatomy-lab input{accent-color:var(--accent);width:17px;height:17px}.anatomy-select{color:var(--muted);margin:18px 0 10px;font-size:12px;display:block}.anatomy-select select{width:100%;margin-top:8px;font-size:13px;display:block}.anatomy-isolate{align-items:center;gap:9px;min-height:44px;font-size:12px;display:flex}.anatomy-focus{margin-bottom:12px}.anatomy-selection{border-top:1px solid var(--line);margin-top:24px;padding-top:24px}.anatomy-selection h3,.anatomy-step h3{font-size:22px;line-height:1.35}.anatomy-selection p,.anatomy-step p{font-size:14px;line-height:1.8}.anatomy-selection a{font-size:13px;font-weight:600;text-decoration:underline}.anatomy-diagram-link{color:var(--accent);margin-top:12px;padding:18px 0;font-size:12px;text-decoration:underline;display:block}.anatomy-panel progress{width:100%;height:6px;accent-color:var(--accent);margin:15px 0 25px;display:block}.anatomy-flow-controls{flex-wrap:wrap;gap:6px;margin:22px 0;display:flex}.anatomy-notice{color:var(--muted);margin-top:20px;font-size:12px;line-height:1.65}.anatomy-credits{border-bottom:1px solid var(--line);padding:18px 0;font-size:12px}.anatomy-credits summary{cursor:pointer;min-height:36px;font-weight:600}.anatomy-credits p{overflow-wrap:anywhere;max-width:900px}.anatomy-credits a{text-decoration:underline}.anatomy-lab a:focus-visible,.anatomy-lab button:focus-visible{outline-color:#b98137}@media (max-width:1150px){.anatomy-layout{grid-template-columns:1fr}.anatomy-panel{border-top:1px solid var(--line)}.anatomy-render{height:500px}.anatomy-layers{flex-wrap:wrap;gap:20px;display:flex}.anatomy-selection{margin-top:16px}}@media (max-width:760px){.anatomy-heading{display:block}.anatomy-heading>label{max-width:220px;margin-top:20px;display:block}.anatomy-render{height:370px}.anatomy-stage-top,.anatomy-stage-bottom{padding:13px 15px}.anatomy-camera{padding:14px 12px 6px}.anatomy-camera button{padding:8px 10px;font-size:11px}.anatomy-panel{padding:20px}.anatomy-help{padding:10px 15px 18px}.anatomy-lab{margin-top:30px}}
.heart-lab{border-top:1px solid var(--line);margin-top:45px;padding-top:40px}.heart-lab-heading h2{margin-bottom:15px;font-family:Georgia,serif;font-size:38px;font-weight:400}.heart-lab-heading>p:last-child{color:var(--muted);max-width:620px}.heart-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin:24px 0;display:flex}.heart-toolbar>div{flex-wrap:wrap;gap:6px;display:flex}.heart-toolbar button,.flow-controls button{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:5px;min-height:44px;padding:9px 15px;font-size:14px}.heart-toolbar button[aria-pressed=true],.flow-controls button[aria-pressed=true]{background:var(--ink);color:#fff}.heart-toolbar label{align-items:center;gap:8px;min-height:44px;font-size:13px;display:flex}.heart-toolbar input{width:18px;height:18px;accent-color:var(--accent)}.heart-workspace{border:1px solid var(--line);background:#fff;border-radius:8px;grid-template-columns:minmax(0,1.45fr) minmax(270px,1fr);display:grid;overflow:hidden}.heart-figure{background:#fdfdfa;min-width:0;padding:24px 15px}.heart-orientation{color:var(--muted);text-align:center;justify-content:space-around;gap:20px;font-size:11px;font-weight:600;display:flex}.heart-svg{width:100%;height:auto;display:block;overflow:visible}.heart-svg text{fill:var(--ink);pointer-events:none;font-family:Segoe UI,sans-serif;font-size:15px}.heart-svg .vessel-label{fill:#586761;font-size:13px}.blood-route{fill:none;stroke-width:5px;stroke-linejoin:round;stroke-linecap:round;opacity:.5}.blood-route.right{stroke:#416e85;stroke-dasharray:9 7}.blood-route.left{stroke:#a74d45}.blood-route.active{opacity:1;stroke-width:8px;stroke-dasharray:10 8}.is-playing .blood-route.active{animation:1.2s linear infinite blood-trace}@keyframes blood-trace{to{stroke-dashoffset:-36px}}.heart-part{cursor:pointer;outline:none}.heart-part>path{stroke-width:2px;stroke:#a0b2b8;fill:#e1edf0}.heart-part.left>path{fill:#f4e5df;stroke:#c5a69b}.heart-part.active>path{stroke:var(--ink);stroke-width:5px}.heart-part:focus-visible>path{stroke:#b26720;stroke-width:6px;stroke-dasharray:5 3}.heart-part:hover>path{stroke-width:4px}.heart-svg .part-number{font-size:16px;font-weight:650}.heart-svg .valve>path{fill:#fff;stroke-width:3px}.heart-svg .valve.active>path{fill:#e6eddb;stroke-width:5px}.exchange-active{stroke:var(--ink);stroke-width:5px}.heart-caption{color:var(--muted);margin:14px 10px;font-size:12px;line-height:1.65}.oxygen-legend{flex-wrap:wrap;justify-content:center;gap:24px;font-size:12px;display:flex}.oxygen-legend span:before{content:"";vertical-align:middle;border-top:3px solid #a74d45;width:25px;margin-right:8px;display:inline-block}.oxygen-legend .low:before{border-color:#416e85;border-top-style:dashed}.heart-detail{border-left:1px solid var(--line);min-width:0;padding:24px}.structure-picker{grid-template-columns:1fr;gap:5px;display:grid}.structure-picker button{text-align:left;font:inherit;min-height:44px;color:var(--ink);background:#f7f8f4;border:1px solid #0000;border-radius:4px;align-items:center;gap:12px;padding:9px 12px;font-size:13px;display:flex}.structure-picker button>span{color:var(--muted);font-family:Consolas,monospace;font-size:11px}.structure-picker button[aria-pressed=true]{border-color:var(--accent);background:#eaf0e6}.structure-description{border-top:1px solid var(--line);margin-top:24px;padding-top:20px}.structure-description h3,.flow-status h3{font-size:22px}.structure-description p,.flow-status p{font-size:15px}.heart-refs{flex-wrap:wrap;gap:8px 14px;margin:12px 0;display:flex}.heart-concept-link{padding:12px 0;font-size:13px;font-weight:600;display:inline-block}.heart-detail progress{width:100%;height:6px;accent-color:var(--accent);margin-bottom:26px;display:block}.oxygen-state{background:#eef0e6;border-radius:3px;margin-bottom:18px;padding:5px 9px;font-size:11px;display:inline-block}.oxygen-state.low{color:#315a6c;background:#e1edf0}.oxygen-state.high{color:#85433c;background:#f4e5df}.flow-controls{flex-wrap:wrap;gap:7px;margin:25px 0 15px;display:flex}.flow-controls button:disabled{opacity:.45;cursor:default}.flow-speed{flex-wrap:wrap;align-items:center;gap:12px;font-size:12px;display:flex}.flow-speed select{font:inherit;border:1px solid var(--line);min-height:44px;color:var(--ink);background:#fff;border-radius:4px;padding:8px 12px}select:focus-visible{outline-offset:4px;outline:3px solid #b26720}.flow-complete{color:var(--accent);margin:20px 0;font-size:13px}.flow-transcript{border-bottom:1px solid var(--line);margin-top:24px;padding-bottom:18px}.flow-transcript summary{cursor:pointer;padding:12px 0;font-size:14px;font-weight:600}.flow-transcript ol{max-width:760px;padding-left:30px}.flow-transcript li{border-bottom:1px solid var(--line);padding:12px 0 16px}.flow-transcript button{font:inherit;border:0;border-bottom:1px solid var(--accent);text-align:left;color:var(--ink);background:0 0;min-height:44px;padding:8px 0}.flow-transcript button[aria-current=step]{font-weight:700}.flow-transcript p{margin:10px 0;font-size:14px}.topic-concepts{gap:14px;display:grid}.related-heart{background:var(--pale);border-radius:6px;margin-top:25px;padding:18px;font-size:14px}.heart-source-note{color:var(--muted);margin-top:20px;font-size:12px}@media (max-width:1150px){.heart-workspace{grid-template-columns:1fr}.heart-detail{border-left:0;border-top:1px solid var(--line)}.structure-picker{grid-template-columns:1fr 1fr}.heart-figure{width:100%;max-width:700px;margin:auto}}@media (max-width:480px){.heart-lab-heading h2{font-size:32px}.heart-detail{padding:18px}.heart-figure{padding:20px 5px}.heart-orientation{font-size:10px}.structure-picker{grid-template-columns:1fr}.heart-toolbar{align-items:flex-start}.heart-caption{margin:12px 8px}.heart-refs .citation{overflow-wrap:anywhere}}@media (prefers-reduced-motion:reduce){.is-playing .blood-route.active{animation:none}}
.body-map{--bm-surface:#fff;--bm-line:var(--line);--bm-ink:var(--ink);--bm-muted:var(--muted);--bm-accent:var(--accent);--bm-body:#e6ece2;--bm-halo:#2f7d63;flex-direction:column;gap:26px;display:flex}:root[data-theme=dark] .body-map,.body-map[data-theme=dark]{--bm-surface:#16211d;--bm-line:#2c3d36;--bm-ink:#e8efe9;--bm-muted:#9fb1a7;--bm-accent:#7fc9ad;--bm-body:#20302a;--bm-halo:#7fc9ad;color:var(--bm-ink)}:root[data-theme=dark] .body-map .lead,.body-map[data-theme=dark] .lead{color:var(--bm-muted)}.body-map-heading{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px 32px;display:flex}.body-map-heading h1{margin-bottom:12px}.body-map-heading .lead{max-width:46ch;margin:0}.body-map-views{border:1px solid var(--bm-line);background:var(--bm-surface);border-radius:999px;gap:4px;padding:4px;display:inline-flex}.body-map-views button{color:inherit;font:inherit;background:0 0;border:0;border-radius:999px;min-height:44px;padding:10px 20px;font-size:14px;transition:background .18s,color .18s}.body-map-views button[aria-pressed=true]{background:var(--bm-accent);color:var(--bm-surface)}.body-map-grid{grid-template-columns:minmax(260px,.9fr) minmax(300px,1.1fr);align-items:start;gap:26px;display:grid}.body-map-figure{border:1px solid var(--bm-line);background:var(--bm-surface);border-radius:18px;flex-direction:column;gap:10px;margin:0;padding:16px;display:flex}.body-map-figure figcaption{color:var(--bm-muted);text-align:center;font-size:12px}.body-map-svg{touch-action:manipulation;width:100%;height:auto;max-height:66vh;display:block}.body-map-svg g.body-art,.body-map-svg g.body-regions{transform-origin:50%;transform-box:view-box;transition:transform .45s cubic-bezier(.22,.61,.36,1)}.body-art-shape{fill:var(--bm-body);stroke:var(--bm-line);stroke-width:1.2px}.body-region{fill:#0000;stroke:#0000;stroke-width:2px;cursor:pointer;transition:fill .2s,stroke .2s}.body-region[data-state=hovered]{fill:color-mix(in srgb,var(--bm-halo) 22%,transparent);stroke:color-mix(in srgb,var(--bm-halo) 65%,transparent)}.body-region[data-state=selected]{fill:color-mix(in srgb,var(--bm-halo) 34%,transparent);stroke:var(--bm-halo)}.body-region:focus-visible{stroke:#b26720;stroke-width:4px;stroke-dasharray:7 5;outline:none}.body-region-label{fill:var(--bm-ink);paint-order:stroke;stroke:var(--bm-surface);stroke-width:6px;pointer-events:none;font-size:21px;font-weight:600}.body-map-panel{flex-direction:column;gap:18px;min-width:0;display:flex}.body-map-search{flex-direction:column;gap:6px;display:flex}.body-map-search input{border:1px solid var(--bm-line);background:var(--bm-surface);color:inherit;border-radius:10px;min-height:46px;padding:12px 14px;font-size:15px}.body-map-results{border:1px solid var(--bm-line);background:var(--bm-surface);border-radius:12px;flex-direction:column;gap:2px;margin:0;padding:6px;list-style:none;display:flex}.body-map-results a{border-radius:8px;min-height:44px;padding:10px;display:block}.body-map-results a:hover{background:color-mix(in srgb,var(--bm-halo) 14%,transparent)}.body-map-soon{color:var(--bm-muted);padding:10px;font-size:14px}.body-map-chips{flex-wrap:wrap;gap:6px;display:flex}.body-map-chips button{border:1px solid var(--bm-line);background:var(--bm-surface);color:inherit;font:inherit;border-radius:999px;min-height:40px;padding:8px 14px;font-size:13px;transition:background .18s,border-color .18s}.body-map-chips button[aria-pressed=true]{background:color-mix(in srgb,var(--bm-halo) 18%,transparent);border-color:var(--bm-halo);font-weight:600}.body-map-chip small{color:var(--bm-muted);margin-left:6px}.body-map-systems button{min-height:36px;padding:6px 12px;font-size:12px}.body-map-structures-head{justify-content:space-between;align-items:baseline;gap:16px;display:flex}.body-map-structures-head h2{margin:4px 0;font-size:21px}.body-map-clear{color:var(--bm-muted);font:inherit;text-underline-offset:4px;background:0 0;border:0;min-height:40px;padding:8px;font-size:13px;text-decoration:underline}.body-map-list{flex-direction:column;gap:8px;margin:14px 0 0;padding:0;list-style:none;display:flex}.body-map-item{border:1px solid var(--bm-line);background:var(--bm-surface);color:inherit;border-radius:12px;grid-template-columns:1fr auto;align-items:center;gap:2px 14px;min-height:56px;padding:12px 14px;text-decoration:none;transition:border-color .18s,transform .18s;display:grid}a.body-map-item:hover{border-color:var(--bm-halo);text-decoration:none;transform:translate(2px)}.body-map-item-name{font-weight:600;line-height:1.3}.body-map-item-meta{color:var(--bm-muted);grid-column:1;font-size:12px}.body-map-item .arrow{color:var(--bm-muted);grid-area:1/2/span 2;margin:0;font-size:22px}.body-map-item.is-soon{opacity:.75}.body-map-item .status{grid-area:1/2/span 2;font-size:11px}.body-map-empty,.body-map-hint{color:var(--bm-muted);font-size:14px}.body-map-keyboard{color:var(--bm-muted);margin:0;font-size:12px}@media (max-width:900px){.body-map-grid{grid-template-columns:1fr}.body-map-svg{max-height:52vh}.body-region{stroke-width:3px}.body-map-heading{gap:12px}}@media (prefers-reduced-motion:reduce){.body-map-svg g.body-art,.body-map-svg g.body-regions,.body-map-item{transition:none}}.body-map-entry{border:1px solid var(--line);background:#fff;border-radius:8px;flex-direction:column;gap:6px;max-width:950px;margin:24px 0 8px;padding:24px 26px;display:flex}.body-map-entry:hover{border-color:#81967e;text-decoration:none}.body-map-entry strong{letter-spacing:-.02em;font-size:26px;font-weight:550}.body-map-entry>span:nth-child(3){color:var(--muted);max-width:60ch;font-size:15px}.body-map-entry .card-link{margin-top:14px}.topic-link.body-map-link{border:1px solid var(--line);margin-top:18px;font-weight:600}.body-tabs{border:1px solid var(--line);background:#fff;border-radius:999px;gap:4px;margin:0 0 22px;padding:4px;display:inline-flex}.body-tabs a{min-height:44px;color:inherit;border-radius:999px;align-items:center;padding:10px 20px;font-size:14px;text-decoration:none;display:inline-flex}.body-tabs a:hover{background:#f1f4ef;text-decoration:none}.body-tabs a[aria-current=page]{color:#fff;background:#2f7d63;font-weight:600}.body-explorer{flex-direction:column;gap:20px;display:flex}.body-explorer-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:14px 32px;display:flex}.body-explorer-head h1{margin-bottom:10px}.body-explorer-head .lead{max-width:56ch;margin:0}.body-explorer-modes{border:1px solid var(--line);background:#fff;border-radius:999px;gap:4px;padding:4px;display:inline-flex}.body-explorer-modes button{color:inherit;font:inherit;background:0 0;border:0;border-radius:999px;min-height:44px;padding:10px 20px;font-size:14px}.body-explorer-modes button[aria-pressed=true]{color:#fff;background:#2f7d63;font-weight:600}.body-explorer-source{color:var(--muted);margin:0;font-size:12px}.body-female{border:1px solid var(--line);background:var(--surface);border-radius:14px;flex-direction:column;gap:8px;padding:12px 16px;display:flex}.body-female .small-label{margin:0}.body-female ul{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.body-female a{border:1px solid var(--line);background:var(--bg);min-height:40px;color:inherit;border-radius:999px;align-items:center;gap:8px;padding:8px 14px;font-size:14px;text-decoration:none;display:inline-flex}.body-female a:hover{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent)}.body-female-note{color:var(--muted);max-width:80ch;margin:0;font-size:12px}.body-source{border:1px solid var(--line);background:var(--surface);border-radius:999px;align-self:flex-start;max-width:100%}.body-source[open]{border-radius:14px}.body-source summary{cursor:pointer;min-height:40px;color:var(--muted);align-items:center;gap:8px;padding:8px 16px;font-size:13px;list-style:none;display:inline-flex}.body-source summary::-webkit-details-marker{display:none}.body-source summary:hover{color:var(--ink)}.body-source summary:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:999px}.body-source-body{flex-direction:column;gap:6px;max-width:70ch;padding:0 16px 14px;display:flex}.body-source-body p{color:var(--muted);margin:0;font-size:12.5px;line-height:1.5}.body-source-body strong{color:var(--ink)}.body-map-grid{grid-template-columns:minmax(0,1fr) 340px}.body-map-svg{max-height:min(80vh,900px)}.body-map-svg[data-zoom=in]{cursor:grab;touch-action:none}.body-map-svg[data-zoom=in]:active{cursor:grabbing}.body-map-layers{flex-wrap:wrap;gap:6px;display:flex}.body-map-layers button{border:1px solid var(--line);color:inherit;font:inherit;background:#fff;border-radius:999px;min-height:40px;padding:8px 14px;font-size:13px}.body-map-layers button[aria-pressed=true]{background:#2f7d632e;border-color:#2f7d63;font-weight:600}@media (max-width:900px){.body-map-grid{grid-template-columns:1fr}.body-map-svg{max-height:62vh}}.body-explorer-controls{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.body-explorer-panel-toggle{border:1px solid var(--line);color:inherit;font:inherit;background:#fff;border-radius:999px;align-items:center;gap:8px;min-height:44px;padding:10px 16px;font-size:13px;display:inline-flex}.body-explorer-panel-toggle[aria-pressed=true]{background:var(--pale);font-weight:600}.body-explorer[data-panel=off] .body-map-grid,.body-explorer[data-panel=off] .atlas-grid{grid-template-columns:minmax(0,1fr)}.body-explorer[data-panel=off] .body-map-panel,.body-explorer[data-panel=off] .atlas-panel{display:none}.body-map-zoom button{padding:10px 16px;font-size:18px;line-height:1}.body-map-zoom button:last-child{font-size:13px}
.atlas{--at-surface:#fff;--at-line:var(--line);--at-ink:var(--ink);--at-muted:var(--muted);--at-accent:#2f7d63;--at-dark:#101b20;flex-direction:column;gap:22px;display:flex}:root[data-theme=dark] .atlas{--at-surface:#16211d;--at-line:#2c3d36;--at-ink:#e8efe9;--at-muted:#9fb1a7;--at-accent:#7fc9ad;color:var(--at-ink)}.atlas-heading{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px 32px;display:flex}.atlas-heading h1{margin-bottom:10px}.atlas-heading .lead{max-width:52ch;margin:0}.atlas-meta{color:var(--at-muted);text-align:right;margin:0;font-size:14px}.atlas-meta small{font-size:12px}.atlas-grid{grid-template-columns:minmax(320px,1.35fr) minmax(280px,.85fr);align-items:stretch;gap:20px;display:grid}.atlas-figure{border:1px solid var(--at-line);background:var(--at-dark);border-radius:18px;margin:0;position:relative;overflow:hidden}.atlas-canvas{width:100%;height:min(74vh,760px);min-height:420px;display:block}.atlas-canvas canvas{cursor:grab;outline:none;width:100%;height:100%;display:block}.atlas-canvas canvas:focus-visible{outline-offset:-3px;outline:3px dashed #f0b45f}.atlas-figure figcaption{color:#9fb1a7;background:#0b1418;border-top:1px solid #1d2b31;padding:10px 14px;font-size:12px}.atlas-fallback{color:#d8e4e8;flex-direction:column;justify-content:center;align-items:center;gap:14px;height:min(74vh,760px);min-height:420px;display:flex}.atlas-fallback button{min-height:44px;color:inherit;font:inherit;background:#17262c;border:1px solid #3a4f57;border-radius:999px;padding:10px 20px}.atlas-overlay{pointer-events:none;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:8px;display:flex;position:absolute;inset:12px 12px auto}.atlas-views{pointer-events:auto;background:#0c161ad1;border:1px solid #2b3d45;border-radius:999px;flex-wrap:wrap;gap:4px;padding:4px;display:inline-flex}.atlas-views button{color:#dbe7ea;font:inherit;background:0 0;border:0;border-radius:999px;min-height:40px;padding:8px 14px;font-size:13px}.atlas-views button:hover{background:#22343b}.atlas-tag,.atlas-loading{color:#f2e3c8;background:#0c161adb;border:1px solid #2b3d45;border-radius:999px;margin:0;padding:8px 14px;font-size:14px}.atlas-loading{color:#bcd3d9}.atlas-panel{flex-direction:column;gap:16px;min-width:0;display:flex}.atlas-panel .small-label{margin-bottom:6px}.atlas-chips{flex-wrap:wrap;gap:6px;display:flex}.atlas-chips button{border:1px solid var(--at-line);background:var(--at-surface);color:inherit;font:inherit;border-radius:999px;min-height:40px;padding:8px 14px;font-size:13px}.atlas-chips button:hover{border-color:var(--at-accent)}.atlas-explode{flex-direction:column;gap:4px;display:flex}.atlas-explode input{width:100%;min-height:44px;accent-color:var(--at-accent)}.atlas-explode-ends{color:var(--at-muted);justify-content:space-between;font-size:12px;display:flex}.atlas-search{flex-direction:column;gap:6px;display:flex}.atlas-search input{border:1px solid var(--at-line);background:var(--at-surface);color:inherit;border-radius:10px;min-height:46px;padding:12px 14px;font-size:15px}.atlas-results{border:1px solid var(--at-line);background:var(--at-surface);border-radius:12px;flex-direction:column;gap:2px;max-height:240px;margin:0;padding:6px;list-style:none;display:flex;overflow:auto}.atlas-results button{width:100%;color:inherit;font:inherit;text-align:left;background:0 0;border:0;border-radius:8px;justify-content:space-between;align-items:baseline;gap:12px;min-height:44px;padding:10px;display:flex}.atlas-results button:hover{background:color-mix(in srgb,var(--at-accent) 14%,transparent)}.atlas-results small{color:var(--at-muted);white-space:nowrap;font-size:12px}.atlas-empty{color:var(--at-muted);padding:10px;font-size:14px}.atlas-systems{border:1px solid var(--at-line);background:var(--at-surface);border-radius:14px;flex-direction:column;flex:1 1 0;gap:0;min-height:160px;display:flex;overflow:hidden}.atlas-systems-head{justify-content:space-between;align-items:center;gap:10px;padding:10px 12px 6px;display:flex}.atlas-systems-head .small-label{margin:0}.atlas-count{color:var(--at-muted);border:1px solid var(--at-line);border-radius:999px;padding:2px 10px;font-size:12px}.atlas-systems ul{overscroll-behavior:contain;flex-direction:column;flex:1;gap:2px;min-height:0;margin:0;padding:4px 6px;list-style:none;display:flex;overflow:auto}.atlas-systems-foot{border-top:1px solid var(--at-line);color:var(--at-muted);justify-content:space-between;align-items:center;gap:10px;padding:8px 12px;font-size:12px;display:flex}.atlas-systems-foot button{color:var(--at-accent);font:inherit;background:0 0;border:0;border-radius:8px;min-height:36px;padding:8px 10px;font-size:12.5px}.atlas-systems-foot button:disabled{color:var(--at-muted);cursor:default}.atlas-systems li{align-items:center;gap:4px;display:flex}.atlas-systems label{cursor:pointer;border-radius:8px;flex:1;align-items:center;gap:10px;min-height:38px;padding:6px 10px;display:flex}.atlas-systems label:hover{background:color-mix(in srgb,var(--at-accent) 10%,transparent)}.atlas-systems input{width:18px;height:18px;accent-color:var(--at-accent)}.atlas-dot{border:1px solid #0003;border-radius:50%;flex:none;width:12px;height:12px}.atlas-system-name{flex:1}.atlas-systems small{color:var(--at-muted);white-space:nowrap;font-size:12px}.atlas-ghost{color:var(--at-muted);background:0 0;border:0;border-radius:8px;min-width:36px;min-height:36px;font-size:16px}.atlas-ghost[aria-pressed=true]{color:var(--at-accent);background:color-mix(in srgb,var(--at-accent) 14%,transparent)}.atlas-card{border:1px solid var(--at-line);background:var(--at-surface);border-radius:12px;flex-direction:column;gap:6px;padding:14px 16px;display:flex}.atlas-card strong{font-size:19px;line-height:1.25}.atlas-source-name{color:var(--at-muted);font-size:12px}.atlas-card-meta{color:var(--at-muted);margin:0;font-size:13px}.atlas-card-actions{flex-wrap:wrap;gap:8px;margin-top:6px;display:flex}.atlas-card-actions button,.atlas-open{border:1px solid var(--at-line);background:var(--at-surface);color:inherit;font:inherit;border-radius:999px;align-items:center;gap:6px;min-height:40px;padding:8px 14px;font-size:13px;text-decoration:none;display:inline-flex}.atlas-open{border-color:var(--at-accent);font-weight:600}.atlas-open:hover{background:color-mix(in srgb,var(--at-accent) 12%,transparent);text-decoration:none}.atlas-hint{color:var(--at-muted);margin:0;font-size:14px}@media (max-width:980px){.atlas-grid{grid-template-columns:1fr}.atlas-canvas,.atlas-fallback{height:min(58vh,560px)}.atlas-meta{text-align:left}}@media (prefers-reduced-motion:reduce){.atlas-chips button,.atlas-open{transition:none}}.atlas-grid{grid-template-columns:minmax(0,1fr) 340px}.atlas-canvas,.atlas-fallback{height:min(80vh,900px)}.atlas-heading{justify-content:flex-start}.atlas-meta{text-align:left}.atlas-panel{height:0;min-height:100%;padding-right:4px;overflow:hidden}@media (max-width:980px){.atlas-grid{grid-template-columns:1fr}.atlas-canvas,.atlas-fallback{height:62vh}.atlas-panel{height:auto;min-height:0;overflow:visible}.atlas-systems{flex:0 auto}.atlas-systems ul{flex:0 auto;max-height:clamp(180px,34vh,320px)}}.atlas-drag button[aria-pressed=true]{color:#fff;background:#2f7d63;font-weight:600}.atlas-inspect-card{color:#e8efe9;background:#0c161af0;border:1px solid #2b3d45;border-radius:14px;flex-direction:column;gap:6px;width:min(330px,100% - 24px);padding:14px 16px;display:flex;position:absolute;bottom:52px;left:12px;box-shadow:0 10px 30px #0006}.atlas-inspect-card .small-label{color:#9fb1a7;margin:0}.atlas-inspect-card strong{font-size:20px;line-height:1.25}.atlas-inspect-card .atlas-card-meta,.atlas-inspect-card .atlas-source-name{color:#a9bcb4}.atlas-card-where{color:#dbe7ea;margin:0;font-size:13px}.atlas-card-where .small-label{color:#8fa79c;display:block}.atlas-inspect-card .atlas-card-actions button,.atlas-inspect-card .atlas-open{color:#e8efe9;background:#17262c;border-color:#3a4f57}.atlas-inspect-card .atlas-open{color:#d8f2e6;border-color:#7fc9ad}@media (max-width:980px){.atlas-inspect-card{background:var(--at-surface);width:auto;color:var(--at-ink);border-color:var(--at-line);box-shadow:none;margin:10px;position:static}.atlas-inspect-card .small-label,.atlas-inspect-card .atlas-card-meta,.atlas-inspect-card .atlas-card-where{color:var(--at-muted)}.atlas-inspect-card .atlas-card-actions button,.atlas-inspect-card .atlas-open{background:var(--at-surface);border-color:var(--at-line);color:inherit}}.atlas-original{min-height:40px;color:var(--at-muted);cursor:pointer;align-items:center;gap:10px;font-size:13px;display:flex}.atlas-original input{width:18px;height:18px;accent-color:var(--at-accent)}.anatomy-label{flex-direction:column;gap:2px;min-width:0;display:inline-flex}.anatomy-label-primary{overflow-wrap:anywhere}.anatomy-label-original{opacity:.72;overflow-wrap:anywhere;font-size:.78em;font-weight:400}.atlas-tag .anatomy-label-original{color:#bcd3d9}.atlas-results .anatomy-label{flex:1}