/* Case-bound architecture: a compact map opens into the decisions behind it. */
.systems-explorer{max-width:1152px;margin:58px auto 0;padding-top:35px;border-top:1px solid var(--line,#d9ddd3);color:var(--ink,#222b27)}
.systems-heading{display:flex;align-items:end;justify-content:space-between;gap:35px;margin-bottom:26px}
.systems-heading h2{font-family:var(--display);font-size:clamp(2rem,3.25vw,2.85rem);line-height:1.12;letter-spacing:-.035em;max-width:16ch;text-wrap:balance}
.systems-heading>p{font-size:13px;line-height:1.7;color:var(--muted,#5e665f);max-width:29ch;padding-bottom:3px}
.systems-case-tabs{display:flex;gap:27px;border-bottom:1px solid #bac7b7;padding:0 0 0 24px}
.systems-case-tab{font:inherit;font-size:13px;min-height:48px;background:transparent;color:var(--muted,#5e665f);border:0;border-bottom:3px solid transparent;border-radius:0;padding:10px 0 13px;cursor:pointer;margin-bottom:-1px}
.systems-case-tab[aria-selected=true]{border-bottom-color:#285849;color:#214d3e;font-weight:700}
.systems-case-tab:hover{color:#183d33}
.systems-surface{background:#edf0e7;border-radius:0 0 12px 12px;padding:30px 30px 19px}
.systems-case[hidden]{display:none}
.systems-brief{display:grid;grid-template-columns:1fr 1fr;gap:9%;align-items:start}
.systems-brief h3{font-family:var(--display);font-size:25px;line-height:1.25;font-weight:600;letter-spacing:-.025em;max-width:25ch;text-wrap:balance}
.systems-brief>p{font-size:13px;color:#4e6253;line-height:1.8;max-width:52ch}
.systems-path{display:flex;list-style:none;margin:32px 0 24px;padding:0}
.systems-stage{position:relative;flex:1;min-width:0;isolation:isolate}
.systems-stage:not(:last-child)::after{content:"";position:absolute;left:50%;top:17px;width:100%;height:1px;background:#9cad96;z-index:-1}
.systems-stage.is-prior::after{background:#285849}
.systems-stage.is-prior .systems-node-index{border-color:#285849;color:#285849;background:#dce6d5}
.systems-node{display:flex;flex-direction:column;align-items:center;min-height:112px;width:100%;padding:0 8px 10px;border:0;border-radius:0;background:transparent;color:#355240;font:inherit;cursor:pointer;text-align:center}
.systems-node-index{display:grid;place-items:center;width:35px;height:35px;flex:none;border-radius:50%;border:1px solid #8da38a;background:#edf0e7;color:#496447;font-size:11px;font-weight:600;font-variant-numeric:tabular-nums;transition:background .15s,color .15s,border-color .15s}
.systems-node-label{font-family:var(--display);font-size:18px;line-height:1.2;font-weight:600;margin-top:15px;letter-spacing:-.02em}
.systems-node-detail{font-size:11px;line-height:1.5;max-width:22ch;margin-top:6px;color:#4e6253}
.systems-node:hover .systems-node-index{background:#dde6d7;border-color:#285849}
.systems-node[aria-pressed=true] .systems-node-index{background:#285849;border-color:#285849;color:#fff}
.systems-node[aria-pressed=true] .systems-node-label{color:#183d33;text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px}
.systems-review .systems-node-index{background:#f0dfc9;border-color:#af8665;color:#6d482c}
.systems-review .systems-node[aria-pressed=true] .systems-node-index{background:#8a4e2d;border-color:#8a4e2d;color:#fff}
.systems-walkthrough{border-top:1px solid #bdcbb5}
.systems-summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 0;list-style:none;cursor:pointer;font-size:13px;font-weight:600;color:#214d3e}
.systems-summary::-webkit-details-marker{display:none}
.systems-summary svg,.systems-evidence svg,.systems-step-controls svg{width:19px;height:19px;flex:none;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.systems-summary svg{transition:transform .2s}
.systems-walkthrough[open] .systems-summary svg{transform:rotate(-90deg)}
.systems-inspector{display:grid;grid-template-columns:.8fr 1.2fr;gap:9%;padding:22px 0 12px;animation:systems-open .24s cubic-bezier(.16,1,.3,1)}
.systems-position{font-size:11px;line-height:1.5;font-variant-numeric:tabular-nums;color:#486044;margin-bottom:12px}
.systems-inspector h4{font-family:var(--display);font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.2;font-weight:600;letter-spacing:-.025em;max-width:23ch;text-wrap:balance}
.systems-explanation dl{margin:0}
.systems-explanation dl>div{display:grid;grid-template-columns:82px 1fr;gap:17px;margin-bottom:18px}
.systems-explanation dt{font-size:11px;font-weight:700;padding-top:2px;color:#34503a}
.systems-explanation dd{margin:0;font-size:13px;line-height:1.8;color:#3c5542;max-width:58ch}
.systems-basis{font-size:11px;line-height:1.7;color:#52684d;margin-top:24px;padding-top:16px;border-top:1px solid #c6d1bf}
.systems-evidence{display:inline-flex;gap:12px;align-items:center;font-size:12px;color:#214d3e;margin-top:10px;text-underline-offset:4px}
.systems-evidence svg{width:17px;height:17px}
.systems-step-controls{display:flex;justify-content:space-between;gap:16px;padding:18px 0 15px}
.systems-step-controls button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:9px 15px;font:inherit;font-size:12px;cursor:pointer;border-radius:6px}
.systems-previous{border:1px solid #a4b59d;background:transparent;color:#294c34}
.systems-next{border:1px solid #285849;background:#285849;color:#fff}
.systems-next:hover:not(:disabled){background:#183d33;border-color:#183d33}
.systems-previous:hover:not(:disabled){background:#e0e8d9}
.systems-step-controls button:disabled{opacity:.45;cursor:default}
.systems-boundary{font-size:12px;line-height:1.7;color:#52684d;padding-top:14px;border-top:1px solid #c6d1bf;margin-top:0;max-width:94ch}
.systems-explorer :where(button,summary,a):focus-visible{outline:3px solid #285849;outline-offset:5px}
.systems-explorer .systems-node:focus-visible{outline-offset:0}
@keyframes systems-open{from{opacity:.65;clip-path:inset(0 0 12% 0)}to{opacity:1;clip-path:inset(0)}}
@media(max-width:1250px){.systems-explorer{margin-left:5%;margin-right:5%}}
@media(max-width:760px){
  .systems-explorer{margin:40px 6% 0;padding-top:30px}
  .systems-heading{display:block;margin-bottom:20px}
  .systems-heading h2{font-size:2.3rem;max-width:16ch}
  .systems-heading>p{margin-top:14px;max-width:40ch;padding:0}
  .systems-case-tabs{gap:23px;padding-left:18px}
  .systems-case-tab{font-size:12px;min-height:49px}
  .systems-surface{padding:25px 18px 17px}
  .systems-brief{display:block}
  .systems-brief h3{font-size:24px;max-width:25ch}
  .systems-brief>p{margin-top:15px;font-size:13px}
  .systems-path{display:block;margin:27px 0 8px}
  .systems-stage:not(:last-child)::after{left:17px;top:17px;width:1px;height:100%}
  .systems-node{display:grid;grid-template-columns:35px 1fr;grid-template-rows:auto auto;align-items:start;gap:4px 17px;min-height:84px;padding:0 0 22px;text-align:left}
  .systems-node-index{grid-row:1 / 3}
  .systems-node-label{font-size:19px;margin-top:3px}
  .systems-node-detail{font-size:12px;max-width:none;margin-top:1px;line-height:1.5}
  .systems-stage:last-child .systems-node{padding-bottom:20px;min-height:70px}
  .systems-summary{font-size:12px}
  .systems-inspector{grid-template-columns:1fr;gap:23px;padding-top:14px}
  .systems-inspector h4{font-size:27px;max-width:24ch}
  .systems-position{margin-bottom:10px}
  .systems-explanation dl>div{grid-template-columns:1fr;gap:5px;margin-bottom:19px}
  .systems-explanation dt{font-size:11px}
  .systems-explanation dd{font-size:13px}
  .systems-basis{margin-top:18px}
  .systems-step-controls{padding-top:13px;gap:9px}
  .systems-step-controls button{font-size:11px;padding:9px 12px}
  .systems-boundary{font-size:12px}
}
@media(prefers-reduced-motion:reduce){.systems-inspector{animation:none}.systems-summary svg,.systems-node-index{transition:none}}
@media print{.systems-explorer{break-inside:avoid}.systems-case-tabs,.systems-summary,.systems-step-controls{display:none}.systems-surface{background:transparent;border:1px solid #bbb}.systems-case[hidden]{display:block}.systems-case+.systems-case{margin-top:28px}.systems-node-index{background:#fff}.systems-boundary{font-size:9pt}}