:root{color-scheme:light;--paper:#f5f3ed;--panel:#fffefa;--ink:#233d3a;--muted:#72817a;--line:#dadfd5;--green:#176b59;--brass:#b48a42;--orange:#d7673b;--blue:#4d88a0}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:14px}button,input,select{font:inherit}button,select{cursor:pointer}button{color:inherit}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:4px}a{color:var(--green)}.masthead,main,footer{max-width:1456px;margin:auto;padding-left:44px;padding-right:44px}.masthead{height:86px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.wordmark{display:flex;align-items:center;gap:13px;text-decoration:none;color:var(--ink);font-size:11px;font-weight:750;letter-spacing:1.7px}.mark{font-family:Georgia,serif;font-style:italic;font-size:31px;border:1px solid var(--ink);width:34px;height:34px;display:grid;place-items:center;line-height:1;padding-bottom:4px}.edition{color:var(--muted);margin-left:7px}.series{font-size:10px;letter-spacing:1.7px;color:var(--muted)}.intro{display:flex;align-items:center;justify-content:space-between;gap:35px;padding:29px 0 27px}.eyebrow{font-size:10px;letter-spacing:1.9px;font-weight:750;color:var(--muted);margin:0 0 11px}h1{font-family:Georgia,"Times New Roman",serif;font-weight:400;font-size:46px;letter-spacing:-1.8px;margin:0;line-height:1.12}.intro-copy{max-width:485px;line-height:1.8;color:#60716a;margin:0;font-size:13px}.intro-copy strong{color:var(--ink);font-weight:650}.workbench{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px}.mechanism{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden;align-self:start}.panel-heading{display:flex;justify-content:space-between;gap:10px;font-size:9px;font-weight:650;letter-spacing:1.4px;padding:18px 22px;color:var(--muted)}.live-dot{display:inline-block;width:6px;height:6px;background:var(--green);border-radius:50%;margin-right:8px}.stage{background-image:radial-gradient(#d5ddd0 0.65px,transparent 0.65px);background-size:20px 20px}.stage>svg{display:block;width:100%;height:clamp(400px,52vh,580px)}.transport{padding:16px 20px;display:flex;gap:9px;align-items:center;border-top:1px solid var(--line)}button{border:1px solid var(--line);border-radius:6px;background:transparent;padding:10px 14px;font-size:12px;font-weight:600;transition:background .15s,border-color .15s}button:hover{background:#e8eee6}button.primary{background:var(--green);color:white;border-color:var(--green);min-width:100px}button.primary:hover{background:#115443}#next span{margin-left:8px}.icon-button{font-size:19px;line-height:15px;padding:11px 13px}.speed-control{display:flex;align-items:center;gap:10px;margin-left:auto;font-size:11px;color:var(--muted)}select{border:1px solid var(--line);background:var(--panel);border-radius:5px;padding:8px;color:var(--ink)}.readouts{border-top:1px solid #e9ebe3;background:#f9faf4;display:flex;align-items:center;gap:22px;padding:12px 21px;font-size:8px;letter-spacing:1px;color:var(--muted)}.readouts strong{display:inline-block;margin-left:7px;font-family:ui-monospace,monospace;font-size:10px;color:var(--ink);letter-spacing:0}.readouts label{margin-left:auto;display:flex;align-items:center;gap:5px;font-size:10px;letter-spacing:0;white-space:nowrap}input{accent-color:var(--green)}.contact-header{display:flex;justify-content:space-between;align-items:baseline;margin:4px 0 12px}.contact-header .eyebrow{margin:0}.contact-header>span{font:9px ui-monospace,monospace;color:var(--muted)}.lens{border:1px solid var(--line);border-radius:7px;overflow:hidden;background:var(--panel);margin-bottom:12px;transition:border-color .15s}.lens.active{border-color:var(--green);box-shadow:0 0 0 1px var(--green)}.lens-heading{display:flex;align-items:center;justify-content:space-between;padding:10px 13px;font-size:10px;background:#f7f8f2;border-bottom:1px solid #e3e7dd}.lens-heading strong{color:var(--green);font-size:12px}.lens-heading strong span{margin-left:8px;font-size:10px;font-weight:550;color:var(--ink)}.contact-status{font-size:9px;text-transform:uppercase;letter-spacing:.9px;color:var(--muted)}.lens.active .contact-status{color:var(--green)}.lens svg{width:100%;display:block}.face-key{display:flex;flex-wrap:wrap;gap:10px 15px;font-size:9px;color:var(--muted);margin:15px 0 24px}.face-key span{display:flex;align-items:center;gap:6px}.face-key i{width:15px;height:3px}.lock-line{background:var(--blue)}.push-line{background:var(--orange)}.narration{border-top:1px solid var(--line);padding-top:20px}.step-counter{font:10px ui-monospace,monospace;letter-spacing:1.4px;color:var(--green);margin:0 0 10px}h2{font:normal 26px Georgia,serif;letter-spacing:-.6px;margin:0 0 10px}.narration>p:not(.step-counter){font-size:12px;line-height:1.8;color:#60716a;min-height:86px;margin:0}.cause{font-size:11px;font-weight:650;color:var(--green);padding:12px 0}.cycle{padding-top:24px}.cycle-heading{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px}.cycle-heading .eyebrow{margin:0}.cycle-heading>span{font-size:10px;color:var(--muted)}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:11px}.steps button{text-align:left;display:flex;gap:15px;align-items:center;padding:15px 17px;background:#fffefa}.step-number{font:20px Georgia,serif;color:#a8b5a8}.steps strong{display:block;font-size:12px;margin-bottom:5px}.steps small{font-size:10px;font-weight:400;color:var(--muted)}.steps button.selected{border-color:var(--green);background:#e9f0e7}.selected .step-number{color:var(--green)}.notes{display:grid;grid-template-columns:1.2fr 1fr;gap:55px;padding:27px 0 32px;font-size:11px;line-height:1.8;color:#718078}.notes p{margin:0}.notes strong{color:var(--ink)}summary{cursor:pointer;color:var(--ink);font-weight:600;padding:0 0 10px}.notes details p{margin-bottom:10px}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:18px;padding-top:20px;padding-bottom:25px;color:var(--muted);font-size:9px;letter-spacing:.7px}footer a{text-decoration:none}footer b{margin:0 7px}.svg-label{font:12px Inter,ui-sans-serif,system-ui,sans-serif;fill:var(--ink)}.svg-note{font:10px Inter,ui-sans-serif,system-ui,sans-serif;fill:#7d887d}.svg-small{font:9px ui-monospace,monospace;fill:#7d887d}.leader{fill:none;stroke:#afb9ab;stroke-width:1}.lens-label{font:9px Inter,ui-sans-serif,system-ui,sans-serif;fill:#60716a}
@media(min-width:1500px){.masthead,main,footer{max-width:1510px}.workbench{grid-template-columns:minmax(0,1fr) 355px}}
@media(max-width:1100px){.masthead,main,footer{padding-left:24px;padding-right:24px}.workbench{gap:18px;grid-template-columns:minmax(0,1fr) 280px}h1{font-size:40px}.intro-copy{max-width:420px;font-size:12px}.readouts{gap:12px;padding:12px}.readouts strong{margin-left:4px}.readouts label{font-size:9px}.steps button{gap:10px;padding:13px 10px}.steps small{font-size:9px}.narration>p:not(.step-counter){min-height:0}}
@media(max-width:830px){.stage>svg{height:auto}.intro{align-items:flex-start;flex-direction:column;gap:18px}.intro-copy{max-width:620px}.workbench{grid-template-columns:1fr}.explanation{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}.contact-header,.face-key,.narration{grid-column:1/-1}.contact-header{margin-bottom:0}.lens{margin:0}.face-key{margin:0 0 5px}.narration{padding-top:15px}.narration>p:not(.step-counter){min-height:0}.steps{grid-template-columns:1fr 1fr}.notes{gap:25px}.series{font-size:8px}.transport{padding:13px}.readouts{padding:12px 15px}.cycle{padding-top:20px}}
@media(max-width:480px){.masthead,main,footer{padding-left:16px;padding-right:16px}.masthead{height:65px}.series{display:none}.wordmark{font-size:9px;letter-spacing:1.2px}.intro{padding:23px 0}.eyebrow{font-size:9px}h1{font-size:38px}.intro-copy{font-size:12px;line-height:1.75}.panel-heading{font-size:8px;padding:14px}.transport{gap:6px;flex-wrap:wrap}button{padding:10px;font-size:10px}button.primary{min-width:75px}.speed-control{gap:5px;font-size:10px}.speed-control select{font-size:10px;padding:7px 4px}.readouts{gap:10px;flex-wrap:wrap;font-size:7px}.readouts label{margin-left:0}.explanation{gap:12px}.lens-heading{padding:9px 7px;flex-wrap:wrap;gap:5px}.lens-heading strong span{margin-left:4px;font-size:9px}.contact-status{font-size:8px}.cycle-heading{display:block}.cycle-heading>span{display:block;margin-top:8px}.steps button{gap:9px}.steps small{font-size:9px}.notes{grid-template-columns:1fr;gap:20px}footer{flex-wrap:wrap;font-size:8px}footer>span:nth-child(2){order:3;width:100%}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}


@media(max-width:480px){.explanation{grid-template-columns:1fr}.stage .svg-note,.stage .svg-small,.stage .leader{display:none}.stage .svg-label{font-size:22px}}
.home-link{margin-left:auto;margin-right:28px;font-size:10px;font-weight:650;letter-spacing:1.4px;text-transform:uppercase;text-decoration:none;color:var(--muted)}.home-link:hover{color:var(--green)}
@media(max-width:480px){.home-link{margin-right:0}}