html{scroll-behavior:smooth}body{margin:0}:root{--ink:#14221c;--ink-soft:#3d4f46;--paper:#eef3ef;--paper-deep:#dfe8e2;--panel:#fffcf7e0;--line:#14221c24;--accent:#0f6b5c;--accent-deep:#0a4a40;--warn:#8a4b12;--warn-wash:#8a4b121a;--accent-wash:#0f6b5c1a;--brand:#0c3d34;--font-display:"Fraunces", "Iowan Old Style", "Palatino Linotype", serif;--font-body:"Figtree", "Avenir Next", "Segoe UI", sans-serif;color:var(--ink);background:var(--paper);font-family:var(--font-body);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased}*,:before,:after{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{min-width:320px}button{font:inherit}.page{isolation:isolate;min-height:100vh;position:relative;overflow-x:hidden}.atmosphere{z-index:-1;background:radial-gradient(80% 50% at 10% -10%,#0f6b5c2e,#0000 55%),radial-gradient(60% 40% at 100% 0,#8a4b121f,#0000 50%),linear-gradient(165deg,#f4f7f4 0%,#e7eee9 45%,#dce7e1 100%);position:fixed;inset:0}.atmosphere:after{content:"";opacity:.35;background-image:linear-gradient(#14221c0a 1px,#0000 1px),linear-gradient(90deg,#14221c0a 1px,#0000 1px);background-size:48px 48px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#0000008c,#0000 85%);mask-image:linear-gradient(#0000008c,#0000 85%)}.masthead{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:.85rem 1.5rem;max-width:1080px;margin:0 auto;padding:1.5rem 1.25rem 0;display:flex}.masthead-brand{flex-wrap:wrap;flex:16rem;align-items:baseline;gap:.75rem 1.5rem;min-width:min(100%,18rem);display:flex}.masthead-share{flex:none;align-self:center;margin-top:.35rem}.brand{font-family:var(--font-display);letter-spacing:-.03em;color:var(--brand);margin:0;font-size:clamp(2.4rem,6vw,3.4rem);font-weight:600;line-height:.95}.tagline{max-width:28rem;color:var(--ink-soft);margin:0;font-size:.95rem;line-height:1.4}.shell{max-width:1080px;margin:0 auto;padding:1.75rem 1.25rem 3rem}.intro{max-width:40rem;margin-bottom:1.5rem}.text-link{color:var(--brand);text-underline-offset:.18em;text-decoration:underline;text-decoration-thickness:1px}.text-link:hover{color:var(--accent-deep)}#single-loop-learning,#double-loop-learning,#loop-learning,#top{scroll-margin-top:1.25rem}.section-nav{margin:1.15rem 0 0;font-size:.92rem}.intro h1{font-family:var(--font-display);letter-spacing:-.02em;margin:0 0 .65rem;font-size:clamp(1.85rem,4vw,2.55rem);font-weight:550;line-height:1.1}.intro p{color:var(--ink-soft);margin:0;font-size:1.05rem;line-height:1.55}.mode-bar{flex-wrap:wrap;gap:.5rem;margin-bottom:.85rem;display:flex}.mode{border:1px solid var(--line);background:var(--panel);color:var(--ink-soft);cursor:pointer;border-radius:999px;padding:.55rem 1rem;transition:background .16s,color .16s,border-color .16s,transform .16s}.mode:hover{border-color:#14221c47;transform:translateY(-1px)}.mode.active{background:var(--accent);border-color:var(--accent);color:#f7fffc}.mode.active.warning{background:var(--warn);border-color:var(--warn)}.mode.ghost{background:0 0}.banner{border-left:3px solid var(--accent);background:var(--accent-wash);color:var(--ink-soft);margin:0 0 1.5rem;padding:.85rem 1rem;font-size:.98rem;line-height:1.5}.banner.solo{border-left-color:var(--warn);background:var(--warn-wash)}.workspace{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);align-items:start;gap:1.5rem 2rem;display:grid}.pane-label{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.35rem 1rem;margin-bottom:.75rem;display:flex}.pane-label h2,.detail-pane h2,.howto h2{font-family:var(--font-display);letter-spacing:-.02em;margin:0;font-size:1.35rem;font-weight:550}.pane-label span{color:var(--ink-soft);font-size:.8rem}.ladder{flex-direction:column;gap:.45rem;margin:0;padding:0;list-style:none;display:flex}.rung{text-align:left;border:1px solid var(--line);background:var(--panel);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);cursor:pointer;border-radius:.55rem;grid-template-columns:auto 1fr auto;align-items:center;gap:.65rem;width:100%;padding:.7rem .85rem;transition:border-color .16s,background .16s;display:grid}.rung:hover{border-color:#0f6b5c73}.rung.active{border-color:var(--accent);outline-offset:0;background:#fff;outline:1px solid #0f6b5c59}.rung-id{font-family:var(--font-display);color:var(--ink-soft);min-width:1.1rem;font-weight:600}.rung.active .rung-id{color:var(--accent-deep)}.rung-name{font-weight:560}.rung-flag{letter-spacing:.02em;text-transform:uppercase;color:var(--warn);font-size:.72rem}.detail-pane{background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:1rem;padding:1.25rem 1.35rem 1.4rem}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 .2rem;font-size:.78rem}.what{color:var(--ink-soft);margin:.55rem 0 1.1rem;line-height:1.55}.block{border-top:1px solid var(--line);padding-top:.85rem}.block h3{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 .35rem;font-size:.82rem;font-weight:650}.block p{margin:0;line-height:1.55}.block.accent{background:var(--accent-wash);border:1px solid #0f6b5c38;border-radius:.7rem;margin-top:.85rem;padding:.85rem .9rem}.block.accent h3{color:var(--accent-deep)}.howto{max-width:42rem;margin-top:2.25rem}.howto.double-loop{border:1px solid var(--line);background:var(--panel);border-radius:1rem;max-width:none;padding:1.25rem 1.35rem}.argyri-quote{border-left:3px solid var(--accent);background:var(--accent-wash);margin:0 0 1rem;padding:.95rem 1.05rem 1rem}.argyri-quote p{font-family:var(--font-display);color:var(--ink);margin:0;font-size:1.02rem;font-weight:500;line-height:1.55}.argyri-quote footer{font-family:var(--font-body);color:var(--ink-soft);margin-top:.7rem;font-size:.82rem}.loop-split{grid-template-columns:minmax(0,1.15fr) minmax(240px,.85fr);align-items:start;gap:1.25rem 1.5rem;margin:.9rem 0 .35rem;display:grid}.loop-copy .insight-grid{margin-top:0}.loop-diagram{margin:0;position:sticky;top:1rem}.loop-diagram svg{width:100%;height:auto;display:block}.loop-diagram figcaption{color:var(--ink-soft);margin-top:.55rem;font-size:.78rem;line-height:1.4}.howto h3{font-family:var(--font-display);margin:1.1rem 0 .45rem;font-size:1.05rem;font-weight:550}.howto p{color:var(--ink-soft);line-height:1.55}.howto p+p{margin-top:.65rem}.howto-steps{color:var(--ink-soft);margin:.85rem 0 0;padding-left:1.2rem;line-height:1.55}.howto-steps li+li{margin-top:.4rem}.case-workbench{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:start;gap:1rem 1.25rem;margin-bottom:1.5rem;display:grid}.case-panel{border:1px solid var(--line);background:var(--panel);border-radius:1rem;padding:1.15rem 1.25rem 1.25rem}.case-panel.input-side{background:#0f6b5c0f;border-color:#0f6b5c47;flex-direction:column;gap:.15rem;display:flex}.climb-loop-diagram{background:#fffcf7e6;border:1px solid #0f6b5c33;border-radius:.85rem;margin:1rem 0 0;padding:.75rem .65rem .7rem}.climb-loop-label{margin:0 0 .35rem;padding:0 .25rem}.climb-loop-label h3{font-family:var(--font-display);color:var(--ink);letter-spacing:-.01em;margin:0;font-size:1rem;font-weight:550}.climb-loop-diagram svg{width:100%;height:auto;display:block}.climb-loop-diagram figcaption{color:var(--ink-soft);margin:.45rem .2rem 0;font-size:.78rem;line-height:1.4}.case-panel.response-side{background:#fffcf7eb;border-color:#14221c29;min-height:100%}.case-panel.response-side.has-result{border-color:#0f6b5c59}.case-input{resize:vertical;border:1px solid var(--line);width:100%;min-height:9rem;color:var(--ink);line-height:1.5;font:inherit;background:#fff;border-radius:.7rem;margin-top:.35rem;padding:.85rem .95rem}.case-input:focus{outline-offset:1px;outline:2px solid #0f6b5c59}.case-actions{flex-wrap:wrap;gap:.5rem;margin-top:.75rem;display:flex}.privacy-note{color:var(--ink-soft);margin:.35rem 0 .65rem;font-size:.88rem;line-height:1.4}.download-row{flex-wrap:wrap;gap:.5rem;margin-bottom:.15rem;display:flex}.sticky-downloads{z-index:2;border-bottom:1px solid var(--line);background:#fffcf7f5;flex-direction:column;align-items:stretch;gap:.65rem;margin:0 0 .65rem;padding:.55rem 0 .65rem;display:flex;position:sticky;top:0}.sticky-downloads .rung-select{width:100%;margin-right:0}.sticky-downloads .rung-select select{box-sizing:border-box;white-space:normal;text-overflow:clip;width:100%;min-width:0;min-height:2.5rem;padding-right:2rem;line-height:1.35;overflow:visible}.download-actions{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.rung-select{letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);flex-direction:column;gap:.25rem;margin-right:auto;font-size:.78rem;font-weight:650;display:flex}.rung-select select{border:1px solid var(--line);min-width:min(100%,22rem);max-width:100%;color:var(--ink);font:inherit;letter-spacing:normal;text-transform:none;background:#fff;border-radius:.5rem;padding:.55rem 2rem .55rem .7rem;font-size:.95rem;font-weight:500}.rung-select select option{white-space:normal;padding:.35rem .5rem;font-weight:500}.rung-select.compact{margin-right:0}.rung-select.compact select{min-width:6.5rem}.rung-select.ladder-select{margin:0 0 .75rem}.rung-focus-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.35rem;display:flex}.rung-focus-head h3{margin:0}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.download-link{text-underline-offset:.15em;text-decoration:underline}.response-empty{background:#dfe8e273;border:1px dashed #14221c38;border-radius:.75rem;margin-top:.5rem;padding:1rem 1.05rem}.response-empty p{color:var(--ink-soft);margin:0;line-height:1.5}.response-stack{flex-direction:column;gap:.7rem;max-height:min(70vh,640px);margin-top:.45rem;padding-right:.2rem;display:flex;overflow:auto}.response-box{border:1px solid #0000;border-radius:.75rem;padding:.9rem 1rem}.response-box h3{letter-spacing:.06em;text-transform:uppercase;margin:0 0 .4rem;font-size:.78rem;font-weight:700}.box-role{color:var(--ink-soft);letter-spacing:normal;text-transform:none;margin:-.15rem 0 .55rem;font-size:.86rem;font-weight:500;line-height:1.35}.preline{white-space:pre-line}.response-box p{color:var(--ink);margin:0;line-height:1.5}.response-box p+p{margin-top:.45rem}.response-box.summary{background:#e5f3ef;border-color:#0f6b5c47}.response-box.summary h3{color:var(--accent-deep)}.response-box.single{background:#edf6e8;border-color:#346e3a4d}.response-box.single h3{color:#2f5f35}.response-box.double{background:#f8efe3;border-color:#8a4b1247}.response-box.double h3{color:var(--warn)}.response-box.double.needed{background:#f6e5d4;border-color:#8a4b1273}.response-box.gate{background:#f7e8e2;border-color:#7a2e1647}.response-box.gate h3{color:#7a2e16}.response-box.rung-focus{background:#e8eef6;border-color:#2d4a6e47}.response-box.rung-focus h3{color:#2d4a6e}.hint-pill{letter-spacing:.04em;text-transform:uppercase;background:#2d4a6e1f;border-radius:999px;padding:.2rem .55rem;font-size:.75rem;font-weight:650;display:inline-block;color:#2d4a6e!important;margin:0 0 .5rem!important}.rung-drill-note{color:var(--ink-soft);margin:0 0 .85rem;font-size:.92rem}.form-error{color:#7a2e16;margin:.65rem 0 0;font-size:.92rem}.form-note{color:var(--ink-soft);margin:.5rem 0 0;font-size:.88rem}.plain-list{color:var(--ink);margin:.35rem 0 0;padding-left:1.15rem;line-height:1.5}.plain-list li+li{margin-top:.3rem}.case-insights{margin-top:2rem}.case-insights>p{color:var(--ink-soft);max-width:48rem;line-height:1.55}.insight-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1rem;display:grid}.insight{border:1px solid var(--line);background:var(--panel);border-radius:.85rem;padding:1rem 1.05rem}.insight h3,.insight.gate h3{letter-spacing:.06em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 .45rem;font-size:.82rem}.insight p{color:var(--ink-soft);margin:0;line-height:1.5}.insight p+p{margin-top:.55rem}.insight.gate{background:var(--warn-wash);border-color:#8a4b1247;margin-top:1rem}.insight.gate h3{color:var(--warn)}.mode:disabled{opacity:.55;cursor:not-allowed;transform:none}.foot{max-width:1080px;margin:0 auto;padding:0 1.25rem 2.5rem}.foot p{max-width:40rem;color:var(--ink-soft);margin:0;font-size:.85rem;line-height:1.45}.foot .copyright{max-width:44rem;color:var(--ink);margin-top:.85rem;font-size:.85rem;font-weight:600;line-height:1.45}.foot .footnote{max-width:44rem;color:var(--ink-soft);margin-top:.55rem;font-size:.78rem;line-height:1.45}@media (width<=820px){.workspace,.insight-grid,.loop-split,.case-workbench{grid-template-columns:1fr}.response-stack{max-height:none}.loop-diagram{max-width:360px;margin-inline:auto;position:static}.ladder li{margin-inline-start:0!important}}@media (prefers-reduced-motion:reduce){.mode,.rung{transition:none}}