:root{--bg:#f4f5f1;--paper:#fff;--ink:#1f3540;--muted:#5f7277;--teal:#087d76;--soft:#e7f2ec;--line:#d9e2df;color-scheme:light}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%;margin:0}
body{color:var(--ink);background:var(--bg);font:14px/1.45 system-ui,-apple-system,"Segoe UI",sans-serif;overflow:hidden}
h1,h2,p{margin:0}
h1{font-size:1.45rem;letter-spacing:-.03em}
h2{font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:8px;font-weight:700}
h2 small{text-transform:none;letter-spacing:0;font-weight:500;margin-left:6px}
a{color:var(--teal);text-underline-offset:3px}
button,input{font:inherit;color:inherit}
button{background:var(--paper);border:1px solid var(--line);border-radius:7px;padding:6px 10px;min-height:34px;cursor:pointer;font-weight:650;touch-action:manipulation}
button:hover{background:#f0f8f3;border-color:#7cb7a9}
button.active{background:var(--soft);color:var(--teal);border-color:#8ebcac}
button.primary{background:var(--teal);border-color:var(--teal);color:#fff}
button:focus-visible,input:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid #d28b54;outline-offset:2px}
.app{display:grid;grid-template-columns:320px 1fr;height:100vh;height:100dvh}
.panel{background:var(--paper);border-right:1px solid var(--line);padding:18px 16px;overflow:auto;display:flex;flex-direction:column;gap:16px}
.brand{position:relative}
.brand p{color:var(--muted);margin-top:3px}
.cells{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.cell-choice{display:flex;flex-direction:column;align-items:flex-start;text-align:left;padding:8px 10px;line-height:1.25}
.cell-choice small{font-weight:500;color:var(--muted);font-size:.78rem}
.cell-choice.active small{color:var(--teal)}
.cell-text{color:var(--muted);font-size:.86rem}
.cell-text .fact{display:inline-block;margin:4px 10px 0 0;color:var(--ink)}
.cell-text .fact b{font-weight:600;color:var(--muted)}
.modes{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:3px;background:#eef3f0;border-radius:9px}
.modes button{border:0;background:none;min-height:32px;padding:6px 4px}
.modes button.active{background:var(--paper);box-shadow:0 1px 3px #1f354022}
.slider{display:grid;grid-template-columns:96px 1fr 44px;align-items:center;gap:8px;margin:4px 0;font-weight:600}
.slider input{width:100%;accent-color:var(--teal)}
.slider output{color:var(--muted);font-size:.85rem;text-align:right;font-weight:500}
.check{display:flex;align-items:center;gap:8px;margin-top:8px;font-weight:600;cursor:pointer}
.check input,.part input{accent-color:var(--teal);width:17px;height:17px;margin:0;flex:none}
.parts{display:grid;gap:1px;margin-bottom:8px}
.part{display:flex;align-items:center;gap:8px;padding:0 6px;border-radius:7px}
.part:hover,.part.active{background:#f2f8f5}
.part-name{display:flex;align-items:center;gap:8px;flex:1;border:0;background:none;text-align:left;padding:5px 2px;min-height:32px;font-weight:600}
.part-name:hover{background:none;color:var(--teal)}
.dot{display:inline-block;width:11px;height:11px;border-radius:50%;flex:none;border:1px solid #0002}
.presets{display:flex;flex-wrap:wrap;gap:6px}
.presets button{font-size:.88rem}
.compare,.credits{color:var(--muted);font-size:.82rem}
.compare summary,.credits summary{cursor:pointer;font-weight:650;color:var(--ink)}
.compare svg{display:block;width:100%;height:auto;margin-top:8px}
.compare svg text{fill:var(--ink)}
.compare ul{margin:6px 0;padding-left:18px}
.credits{margin-top:auto}
.credits p{margin-top:8px}
.stage{position:relative;min-width:0;min-height:0;overflow:hidden}
#scene{display:block;width:100%;height:100%;touch-action:none;cursor:grab}
#scene:active{cursor:grabbing}
.toolbar{position:absolute;top:12px;left:12px;right:12px;display:flex;flex-wrap:wrap;gap:6px;pointer-events:none}
.toolbar button{pointer-events:auto;box-shadow:0 2px 8px #1f354014}
#fullscreen{margin-left:auto}
.status{pointer-events:none;position:absolute;left:12px;top:56px;max-width:min(560px,calc(100% - 24px));background:#fffd;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:.88rem}
.status.busy::before{content:"";display:inline-block;width:10px;height:10px;margin-right:7px;border:2px solid var(--line);border-top-color:var(--teal);border-radius:50%;animation:spin .8s linear infinite;vertical-align:-1px}
@keyframes spin{to{transform:rotate(360deg)}}
.hint{position:absolute;left:12px;bottom:10px;color:var(--muted);font-size:.78rem}
.scalebar{position:absolute;left:14px;bottom:34px;display:flex;flex-direction:column;gap:3px;pointer-events:none}
.scalebar span{display:block;height:6px;border:2px solid var(--ink);border-top:0}
.scalebar b{font-size:.78rem;font-weight:650}
.labels-layer{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.labels-layer .pin{position:absolute;left:-5px;top:-5px;width:10px;height:10px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px #1f354066}
.label-text{position:absolute;left:0;top:0;white-space:nowrap;font-size:.78rem;font-weight:650;background:#fffe;border:1px solid var(--line);border-radius:6px;padding:1px 6px;box-shadow:0 1px 4px #1f354018}
.leaders{position:absolute;inset:0;width:100%;height:100%}
.leaders path{fill:none;stroke:#1f354088;stroke-width:1}
.card{position:absolute;right:12px;bottom:12px;width:min(380px,calc(100% - 24px));max-height:calc(100% - 70px);overflow:auto;background:var(--paper);border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 34px #1f354026;padding:12px 14px}
.card header{display:flex;align-items:flex-start;gap:8px}
.card header>div{flex:1}
.card header .dot{margin-top:6px}
.card h2{font-size:1.08rem;text-transform:none;letter-spacing:-.01em;color:var(--ink);margin:0}
.fach{color:var(--muted);font-size:.82rem}
.close{border:0;min-height:0;padding:0 4px;font-size:1.3rem;line-height:1;background:none;color:var(--muted)}
.card-body{margin:8px 0}
.card-body p{margin-bottom:8px}
.info dl{display:grid;grid-template-columns:auto 1fr;gap:4px 10px;margin:0 0 8px}
.info dt{color:var(--muted);font-weight:600}
.info dd{margin:0}
.here{background:#fff6dd;border-radius:7px;padding:6px 9px}
.merk{background:var(--soft);border-radius:7px;padding:6px 9px;font-size:.88rem}
.card .actions{display:flex;flex-wrap:wrap;gap:6px}
.question{font-size:1.05rem;font-weight:650;margin:10px 0}
.choices{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:8px}
.choices button.right{background:#e3f4e8;border-color:#5bae76;color:#155c2d}
.choices button.wrong{background:#fdecea;border-color:#d98b80;color:#8b2d27}
.feedback{min-height:1.2em;margin-bottom:8px}
.feedback.good{color:#156c3a}.feedback.bad{color:#8b2d27}
.only-mobile{display:none}
:fullscreen .app,.app:fullscreen{height:100vh}
.close-panel{position:absolute;top:-6px;right:-4px;width:40px;height:40px;padding:0;font-size:1.5rem;line-height:1;color:var(--muted)}
.scrim{display:none}
/* Phones, also turned sideways: the panel slides in over the model (panel.js uses the same query). */
@media (max-width:760px),(max-height:500px) and (max-width:1024px){
 .app{grid-template-columns:1fr}
 .panel{position:absolute;z-index:10;inset:0 auto 0 0;width:min(340px,90vw);transform:translateX(-102%);visibility:hidden;transition:transform .2s,visibility 0s .2s;box-shadow:0 0 40px #1f354040}
 .app.panel-open .panel{transform:none;visibility:visible;transition:transform .2s}
 .brand{padding-right:40px}
 .scrim{display:block;position:absolute;z-index:9;inset:0;background:#1f354033;opacity:0;pointer-events:none;transition:opacity .2s}
 .app.panel-open .scrim{opacity:1;pointer-events:auto}
 .only-mobile{display:inline-block}
 .hint{display:none}
 .scalebar{bottom:12px}
 .card{left:8px;right:8px;bottom:8px;width:auto;max-height:52%}
 .toolbar button{padding:6px 8px}
}
.note{color:var(--muted);font-size:.8rem;margin-top:6px}
.process-list{display:grid;gap:6px}
.process-list button{display:flex;flex-direction:column;align-items:flex-start;text-align:left;padding:8px 10px;gap:2px}
.process-list button small{font-weight:500;color:var(--muted);font-size:.8rem;line-height:1.3}
.process h3{font-size:.98rem;margin:10px 0 4px}
.process #proc-text{margin-bottom:10px}
.dots{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:10px}
.dots button{width:26px;height:26px;min-height:0;padding:0;border-radius:50%;font-size:.75rem;font-weight:650}
.dots button.done{background:var(--soft);border-color:#8ebcac}
.dots button.active{background:var(--teal);border-color:var(--teal);color:#fff}
.zoom-chip{position:absolute;left:50%;top:60px;transform:translateX(-50%);background:var(--teal);color:#fff;border-color:var(--teal);box-shadow:0 6px 18px #1f354033;white-space:nowrap}
.zoom-chip:hover{background:#06655f}
#back-cell{background:var(--teal);border-color:var(--teal);color:#fff}