.iso{--anatomy-page:#0b0b0b;--anatomy-card:#131313;--anatomy-text:#a3a3a3;--anatomy-strong:#e6e6e6;--anatomy-muted:#6e6e6e;--anatomy-paper:#131313;--anatomy-face:#1b1b1b;--anatomy-top:#1c1c1c;--anatomy-shade-0:#0f0f0f;--anatomy-shade-1:#121212;--anatomy-shade-2:#151515;--anatomy-shade-3:#181818;--anatomy-lit-top:#262626;--anatomy-lit-shade:#1d1d1d;--anatomy-hi:#d4d4d4;--anatomy-mid:#6a6a6a;--anatomy-lo:#3e3e3e;--anatomy-faint:#2a2a2a;--anatomy-lit:#ffffff;--anatomy-halo:#050505;--anatomy-halo-opacity:.9;--anatomy-dot:#e6e6e6;--anatomy-red:#ff6b6b;--anatomy-green:#6be0a0;--anatomy-blue:#6b9bff;--anatomy-weight:.6px;--anatomy-ease:cubic-bezier(.32,.72,0,1);--anatomy-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;--anatomy-lift:inset 0 1px 0 0 #ffffff0a,inset 0 0 0 1px #ffffff06,0 0 0 1px #00000026,0 1px 1px -.5px #00000014,0 3px 3px -1.5px #00000014,0 6px 6px -3px #00000014,0 12px 12px -6px #00000014}.iso[data-theme=light]{--anatomy-page:#f2f2ef;--anatomy-card:#fbfbfa;--anatomy-text:#57575a;--anatomy-strong:#18181a;--anatomy-muted:#8c8c90;--anatomy-paper:#fbfbfa;--anatomy-face:#ffffff;--anatomy-top:#ffffff;--anatomy-shade-0:#dcdcd9;--anatomy-shade-1:#e5e5e2;--anatomy-shade-2:#ededea;--anatomy-shade-3:#f4f4f1;--anatomy-lit-top:#ffffff;--anatomy-lit-shade:#eeeeeb;--anatomy-hi:#26262a;--anatomy-mid:#8a8a8f;--anatomy-lo:#b4b4b8;--anatomy-faint:#d4d4d6;--anatomy-lit:#000000;--anatomy-halo:#8a8a80;--anatomy-halo-opacity:.32;--anatomy-dot:#3a3a3e;--anatomy-red:#e5484d;--anatomy-green:#30a46c;--anatomy-blue:#3e63dd;--anatomy-lift:inset 0 1px 0 0 #ffffff,0 0 0 1px #0000000f,0 1px 1px -.5px #0000000a,0 3px 3px -1.5px #0000000a,0 6px 6px -3px #0000000a,0 12px 12px -6px #0000000a}.iso-svg{display:block;width:100%;height:auto;overflow:visible}.iso-svg path,.iso-svg circle{vector-effect:non-scaling-stroke}.iso-fill{fill:var(--anatomy-paper);stroke:none}.iso-solid[data-lit]>.iso-fill{fill:var(--anatomy-face)}.iso-shade,.iso-top{stroke:none}.iso-shade[data-shade="0"]{fill:var(--anatomy-shade-0)}.iso-shade[data-shade="1"]{fill:var(--anatomy-shade-1)}.iso-shade[data-shade="2"]{fill:var(--anatomy-shade-2)}.iso-shade[data-shade="3"]{fill:var(--anatomy-shade-3)}.iso-top{fill:var(--anatomy-top)}.iso-solid[data-lit]>.iso-top{fill:var(--anatomy-lit-top)}.iso-solid[data-lit]>.iso-shade{fill:var(--anatomy-lit-shade)}.iso-solid[data-seamless]>.iso-shade,.iso-solid[data-seamless]>.iso-top{stroke-width:.4;stroke-linejoin:round}.iso-solid[data-seamless]>.iso-shade[data-shade="0"]{stroke:var(--anatomy-shade-0)}.iso-solid[data-seamless]>.iso-shade[data-shade="1"]{stroke:var(--anatomy-shade-1)}.iso-solid[data-seamless]>.iso-shade[data-shade="2"]{stroke:var(--anatomy-shade-2)}.iso-solid[data-seamless]>.iso-shade[data-shade="3"]{stroke:var(--anatomy-shade-3)}.iso-solid[data-seamless]>.iso-top{stroke:var(--anatomy-top)}.iso-solid[data-seamless][data-lit]>.iso-top{stroke:var(--anatomy-lit-top)}.iso-solid[data-seamless][data-lit]>.iso-shade{stroke:var(--anatomy-lit-shade)}.iso-solid[data-lit]>.iso-edge{stroke:var(--anatomy-lit)}.iso-halo{fill:var(--anatomy-halo);stroke:none;filter:blur(9px);opacity:var(--anatomy-halo-opacity);transform:translateY(3px)}.iso-line{fill:none;stroke:var(--anatomy-lo);stroke-width:var(--anatomy-weight);stroke-linecap:round;stroke-linejoin:round}.iso-line[data-tone=hi]{stroke:var(--anatomy-hi)}.iso-line[data-tone=mid]{stroke:var(--anatomy-mid)}.iso-line[data-tone=lo]{stroke:var(--anatomy-lo)}.iso-line[data-tone=faint]{stroke:var(--anatomy-faint)}.iso-line[data-tone=lit]{stroke:var(--anatomy-lit)}.iso-line[data-tone=red]{stroke:var(--anatomy-red)}.iso-line[data-tone=green]{stroke:var(--anatomy-green)}.iso-line[data-tone=blue]{stroke:var(--anatomy-blue)}.iso-line[data-dotted]{stroke-dasharray:.01 3.5;stroke-width:1}.iso-line[data-dashed]{stroke-dasharray:3 3}.iso-line[data-flow]{stroke-dasharray:2 6}.iso-wire-end{fill:var(--anatomy-paper);stroke:var(--anatomy-lo);stroke-width:var(--anatomy-weight)}.iso-wire[data-tone=hi] .iso-wire-end{stroke:var(--anatomy-hi)}.iso-wire[data-tone=mid] .iso-wire-end{stroke:var(--anatomy-mid)}.iso-wire[data-tone=faint] .iso-wire-end{stroke:var(--anatomy-faint)}.iso-wire[data-tone=lit] .iso-wire-end{stroke:var(--anatomy-lit)}.iso-dots circle{fill:var(--anatomy-dot);stroke:none;opacity:.32}.iso-dots[data-tone=hi] circle{opacity:.85}.iso-dots[data-tone=mid] circle{opacity:.45}.iso-dots[data-tone=lo] circle{opacity:.22}.iso-dots[data-tone=faint] circle{opacity:.12}.iso-face-text{fill:var(--anatomy-mid);font-family:var(--anatomy-mono);letter-spacing:.04em}.iso-face-text[data-tone=hi]{fill:var(--anatomy-hi)}.iso-face-text[data-tone=lo]{fill:var(--anatomy-lo)}.iso-face-text[data-tone=faint]{fill:var(--anatomy-faint)}.tb-body{fill:var(--anatomy-shade-2);stroke:none}.tb-shine{fill:var(--anatomy-top);stroke:none}.tb-shade{fill:var(--anatomy-shade-0);stroke:none}.tb-ring{fill:none;stroke:var(--anatomy-lo);stroke-width:.45;stroke-linecap:butt;stroke-linejoin:round}.tb-ring[data-tone=mid]{stroke:var(--anatomy-mid)}.tb-ring[data-tone=faint]{stroke:var(--anatomy-faint)}.tb-ring[data-tone=hi]{stroke:var(--anatomy-hi)}@keyframes iso-flow{to{stroke-dashoffset:-32}}@keyframes iso-pulse{0%,to{opacity:.18}12%{opacity:1}40%{opacity:.18}}.iso-line[data-flow]{animation:iso-flow 1.6s linear infinite}.iso-dots circle[data-pulse]{animation:iso-pulse 1.6s steps(1,end) infinite;animation-delay:var(--pulse-at,0ms)}.iso-figure{margin:32px 0 36px}.iso-plate{position:relative;padding:52px 24px;border-radius:0;background:var(--anatomy-card);box-shadow:0 0 0 1px var(--anatomy-mid);--anatomy-paper:var(--anatomy-card)}.iso-plate-corners{position:absolute;inset:18px 20px;pointer-events:none}.iso-plate-corner{position:absolute;color:var(--anatomy-muted);font-family:var(--anatomy-mono);font-size:10.5px;line-height:1;letter-spacing:.04em;white-space:nowrap}.iso-plate-corner[data-corner=fig]{top:0;left:0;color:var(--anatomy-text)}.iso-plate-corner[data-corner=title]{top:0;right:0;text-transform:uppercase;letter-spacing:.1em}.iso-plate-corner[data-corner=hint]{bottom:0;left:0;text-transform:uppercase;letter-spacing:.1em}.iso-plate-corner[data-corner=readout]{right:0;bottom:0;color:var(--anatomy-text);font-variant-numeric:tabular-nums}.iso-plate .iso-svg{margin:0 auto}.iso-legend{display:grid;gap:8px;margin-top:12px;color:var(--anatomy-muted);font-size:13px;line-height:1.55}.iso-keys{display:flex;flex-wrap:wrap;gap:6px 18px}.iso-key{display:inline-flex;align-items:center;gap:7px}.iso-swatch{width:16px;height:10px;flex:none;overflow:visible}.iso-swatch path{fill:none;stroke:var(--anatomy-hi);stroke-width:1;vector-effect:non-scaling-stroke;stroke-linejoin:round;stroke-linecap:round}.iso-swatch[data-mark=raised] path,.iso-swatch[data-mark=flat] path{stroke:var(--anatomy-mid)}.iso-swatch[data-mark=lit] path{stroke:var(--anatomy-lit)}.iso-swatch[data-mark=dim] path{stroke:var(--anatomy-lo)}.iso-swatch[data-mark=dotted] path{stroke-dasharray:.01 3;stroke-width:1.4}.iso-swatch[data-mark=dashed] path{stroke-dasharray:3 2.5}.iso-swatch[data-mark=red] path{stroke:var(--anatomy-red)}.iso-swatch[data-mark=green] path{stroke:var(--anatomy-green)}.iso-swatch[data-mark=blue] path{stroke:var(--anatomy-blue)}.iso-swatch-crease{stroke:var(--anatomy-lo)!important}@media(max-width:560px){.iso-plate{padding:48px 12px 70px}.iso-plate-corner[data-corner=hint]{bottom:18px}}@media(prefers-reduced-motion:reduce){.iso-line[data-flow],.iso-dots circle[data-pulse]{animation:none}}.explorer[data-astro-cid-7fg4dt3v]{--ink:#182b30;--muted:#53666b;max-width:1240px;margin:auto}.eyebrow[data-astro-cid-7fg4dt3v]{font:600 11px/1.6 ui-monospace,monospace;letter-spacing:.16em;color:#70532d}.explorer-intro[data-astro-cid-7fg4dt3v]{display:grid;grid-template-columns:1.4fr 1fr;gap:60px;padding:32px 0 46px;align-items:end}.explorer[data-astro-cid-7fg4dt3v] h1[data-astro-cid-7fg4dt3v]{white-space:pre-line;font-size:clamp(32px,4.2vw,58px);letter-spacing:-.045em;line-height:1.15;margin:18px 0 0;color:var(--ink)}.intro-note[data-astro-cid-7fg4dt3v]{max-width:400px;color:var(--muted);line-height:1.8}.intro-note[data-astro-cid-7fg4dt3v] a[data-astro-cid-7fg4dt3v],.study-notes[data-astro-cid-7fg4dt3v] a[data-astro-cid-7fg4dt3v]{font-size:14px;font-weight:600}.boundary-label[data-astro-cid-7fg4dt3v]{font-size:12px;color:#70532d}.study-nav[data-astro-cid-7fg4dt3v]{display:flex;gap:12px;align-items:center;flex-wrap:wrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:15px 0}.study-nav[data-astro-cid-7fg4dt3v] a[data-astro-cid-7fg4dt3v]{display:flex;align-items:center;gap:12px;padding:12px 18px;background:#f0f3f2;text-decoration:none;font-size:14px;font-weight:600;min-height:44px}.study-nav[data-astro-cid-7fg4dt3v] span[data-astro-cid-7fg4dt3v]{color:#836137;font:11px ui-monospace,monospace}.study-nav[data-astro-cid-7fg4dt3v] button[data-astro-cid-7fg4dt3v]{margin-left:auto}.explorer[data-astro-cid-7fg4dt3v] button[data-astro-cid-7fg4dt3v]{font:inherit;font-size:13px;min-height:44px;border:1px solid #adbbb9;border-radius:3px;padding:10px 16px;color:#243b3f;background:transparent;cursor:pointer}.explorer[data-astro-cid-7fg4dt3v] button[data-astro-cid-7fg4dt3v]:hover{background:#e9eeec}.explorer[data-astro-cid-7fg4dt3v] button[data-astro-cid-7fg4dt3v][aria-pressed=true]{background:#203b40;color:#fff;border-color:#203b40}.explorer[data-astro-cid-7fg4dt3v] button[data-astro-cid-7fg4dt3v]:disabled{opacity:.5;cursor:default}.explorer[data-astro-cid-7fg4dt3v] [data-astro-cid-7fg4dt3v]:is(a,button,input):focus-visible{outline:3px solid #a46d19;outline-offset:4px}.study[data-astro-cid-7fg4dt3v]{padding:50px 0 54px;border-bottom:1px solid var(--line);scroll-margin-top:95px}.study-heading[data-astro-cid-7fg4dt3v]{max-width:780px;margin-bottom:25px}.study[data-astro-cid-7fg4dt3v] h2[data-astro-cid-7fg4dt3v]{font-size:clamp(26px,3vw,36px);letter-spacing:-.025em;margin:8px 0 14px;color:var(--ink)}.study-heading[data-astro-cid-7fg4dt3v]>p[data-astro-cid-7fg4dt3v]:last-child{color:var(--muted);line-height:1.8;margin:0}.study-body[data-astro-cid-7fg4dt3v]{display:grid;grid-template-columns:minmax(0,1.85fr) minmax(250px,1fr);gap:42px;align-items:center}.study-visual[data-astro-cid-7fg4dt3v]{min-width:0}.anatomy-plate[data-astro-cid-7fg4dt3v]{box-shadow:var(--anatomy-lift);border:1px solid #d9dedb;border-radius:7px;background:var(--anatomy-card);overflow:hidden;color:var(--anatomy-text)}.plate-top[data-astro-cid-7fg4dt3v],.plate-bottom[data-astro-cid-7fg4dt3v]{display:flex;justify-content:space-between;gap:14px;padding:17px 20px;font:10px/1.7 ui-monospace,monospace;letter-spacing:.045em}.plate-top[data-astro-cid-7fg4dt3v]{color:var(--anatomy-strong);border-bottom:1px solid color-mix(in srgb,var(--anatomy-lo) 25%,transparent)}.plate-bottom[data-astro-cid-7fg4dt3v]{flex-wrap:wrap}.illustration[data-astro-cid-7fg4dt3v]{padding:0 8px}.illustration[data-astro-cid-7fg4dt3v] img[data-astro-cid-7fg4dt3v].anatomy-static{object-fit:contain}.illustration[data-astro-cid-7fg4dt3v] .anatomy-reserve[data-astro-cid-7fg4dt3v]{display:block}@media(scripting:none){.illustration[data-astro-cid-7fg4dt3v] .anatomy-reserve[data-astro-cid-7fg4dt3v]{display:none}}.illustration[data-astro-cid-7fg4dt3v] .iso-svg{max-height:460px}.anatomy-plate[data-astro-cid-7fg4dt3v][data-zoom=true] .illustration[data-astro-cid-7fg4dt3v] .iso-svg{max-height:none}.illustration-window[data-astro-cid-7fg4dt3v]{overflow:auto;overscroll-behavior:contain}.illustration-window[data-astro-cid-7fg4dt3v]:focus-visible{outline:3px solid #a46d19;outline-offset:-4px}.anatomy-plate[data-astro-cid-7fg4dt3v][data-zoom=true] .illustration-window[data-astro-cid-7fg4dt3v]{max-height:440px}.anatomy-plate[data-astro-cid-7fg4dt3v][data-zoom=true] .illustration[data-astro-cid-7fg4dt3v]{width:400%;max-width:none}.study-controls[data-astro-cid-7fg4dt3v]{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.study-controls[data-astro-cid-7fg4dt3v] button[data-astro-cid-7fg4dt3v]:first-child{min-width:116px}.scrubber[data-astro-cid-7fg4dt3v]{display:flex;align-items:center;gap:12px;font:11px/1.5 ui-monospace,monospace;color:#4c6064;margin-top:12px}.scrubber[data-astro-cid-7fg4dt3v] input[data-astro-cid-7fg4dt3v]{min-width:40px;flex:1;accent-color:#203b40;height:44px}.scrubber[data-astro-cid-7fg4dt3v]>span[data-astro-cid-7fg4dt3v]:last-child{white-space:nowrap}.study-notes[data-astro-cid-7fg4dt3v] h3[data-astro-cid-7fg4dt3v]{font-size:16px;margin:0 0 18px}.study-notes[data-astro-cid-7fg4dt3v] ol[data-astro-cid-7fg4dt3v]{padding-left:22px;margin:0 0 26px}.study-notes[data-astro-cid-7fg4dt3v] li[data-astro-cid-7fg4dt3v]{padding:0 0 14px 5px;color:#374e53;font-size:14px;line-height:1.8}.study-boundary[data-astro-cid-7fg4dt3v]{font-size:12px;line-height:1.85;color:#53666b;border-left:2px solid #c4ab83;padding-left:14px}.study-notes[data-astro-cid-7fg4dt3v] a[data-astro-cid-7fg4dt3v]{display:block;min-height:44px;padding:10px 0;line-height:1.7}.review-path[data-astro-cid-7fg4dt3v]{margin-top:45px;padding:32px;background:#eef2f0;border-left:3px solid #ab8148}.review-path[data-astro-cid-7fg4dt3v] h2[data-astro-cid-7fg4dt3v]{font-size:26px;letter-spacing:-.025em}.review-path[data-astro-cid-7fg4dt3v] p[data-astro-cid-7fg4dt3v]:not(.eyebrow){max-width:820px;line-height:1.85;color:#475e62}.review-path[data-astro-cid-7fg4dt3v]>div[data-astro-cid-7fg4dt3v]{display:flex;gap:12px;flex-wrap:wrap}.anatomy-credit[data-astro-cid-7fg4dt3v]{font-size:11px;color:#617278;margin-top:24px;line-height:1.8}.sr-only[data-astro-cid-7fg4dt3v]{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.anatomy-plate[data-astro-cid-7fg4dt3v] [data-part^="drive.outputrod"] .iso-line,.anatomy-plate[data-astro-cid-7fg4dt3v] [data-part^="piston.rod"] .iso-line,.anatomy-plate[data-astro-cid-7fg4dt3v] [data-part^="valve.stem"] .iso-line,.anatomy-plate[data-astro-cid-7fg4dt3v] [data-part^="stand.post."] .iso-line,.anatomy-plate[data-astro-cid-7fg4dt3v] [data-part^="valve.spring."] .iso-line{stroke:none}.anatomy-plate[data-astro-cid-7fg4dt3v] .anatomy-rod .iso-fill{fill:var(--anatomy-mid);fill:color-mix(in srgb,var(--anatomy-hi) 35%,var(--anatomy-paper))}.anatomy-plate[data-astro-cid-7fg4dt3v] .anatomy-rod .iso-shade[data-shade="0"]{fill:color-mix(in srgb,var(--anatomy-hi) 60%,var(--anatomy-paper))}.anatomy-plate[data-astro-cid-7fg4dt3v] .anatomy-rod .iso-shade[data-shade="1"]{fill:color-mix(in srgb,var(--anatomy-hi) 45%,var(--anatomy-paper))}.anatomy-plate[data-astro-cid-7fg4dt3v] .anatomy-rod .iso-shade[data-shade="2"]{fill:color-mix(in srgb,var(--anatomy-hi) 32%,var(--anatomy-paper))}.anatomy-plate[data-astro-cid-7fg4dt3v] .anatomy-rod .iso-shade[data-shade="3"]{fill:color-mix(in srgb,var(--anatomy-hi) 22%,var(--anatomy-paper))}.anatomy-plate[data-astro-cid-7fg4dt3v] .anatomy-rod .iso-top{fill:color-mix(in srgb,var(--anatomy-hi) 15%,var(--anatomy-paper))}.review-path[data-astro-cid-7fg4dt3v] .btn-line[data-astro-cid-7fg4dt3v]{color:var(--ink);border-color:#8b9e9d;background:transparent}.review-path[data-astro-cid-7fg4dt3v] .btn-line[data-astro-cid-7fg4dt3v]:hover{background:#e3e9e6}@media(max-width:850px){.explorer-intro[data-astro-cid-7fg4dt3v]{grid-template-columns:1fr;gap:22px;padding-top:12px}.intro-note[data-astro-cid-7fg4dt3v]{max-width:100%}.study-body[data-astro-cid-7fg4dt3v]{grid-template-columns:1fr;gap:24px}.study-notes[data-astro-cid-7fg4dt3v]{display:block}.study[data-astro-cid-7fg4dt3v]{padding:35px 0}.study-nav[data-astro-cid-7fg4dt3v]{gap:7px}.study-nav[data-astro-cid-7fg4dt3v] a[data-astro-cid-7fg4dt3v]{padding:10px 12px}.study-nav[data-astro-cid-7fg4dt3v] button[data-astro-cid-7fg4dt3v]{margin-left:0}.plate-top[data-astro-cid-7fg4dt3v],.plate-bottom[data-astro-cid-7fg4dt3v]{padding:12px;font-size:9px}.review-path[data-astro-cid-7fg4dt3v]{padding:23px}.scrubber[data-astro-cid-7fg4dt3v]{gap:7px;font-size:10px}}@media(prefers-reduced-motion:reduce){.explorer[data-astro-cid-7fg4dt3v]{scroll-behavior:auto}}