:root{color:#18211e;font-synthesis:none;text-rendering:optimizelegibility;--ink:#18211e;--muted:#69746f;--green-950:#18342d;--green-800:#294b40;--green-700:#396456;--green-100:#e6eee9;--paper:#fffdf9;--canvas:#f3f0e9;--line:#ddd8ce;--line-dark:#cbc5b9;--accent:#b55235;--accent-dark:#96422b;--accent-soft:#f2ded4;--gold:#d9c18d;--warning:#a86c2c;background:#f3f0e9;font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{background:var(--canvas);scroll-behavior:smooth;min-width:1120px}body{min-width:1120px;min-height:100vh;margin:0}button{font:inherit}button:focus-visible{outline-offset:2px;outline:3px solid #b5523538}.app-shell{grid-template-columns:246px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{z-index:10;color:#f8f5ee;background:var(--green-950);border-right:1px solid #ffffff1a;flex-direction:column;width:246px;padding:28px 18px 22px;display:flex;position:fixed;inset:0 auto 0 0}.brand{align-items:center;gap:12px;padding:0 8px 31px;display:flex}.brand-mark{width:36px;height:36px;color:var(--green-950);background:var(--gold);border-radius:4px;place-items:center;font-family:Georgia,serif;font-size:23px;font-weight:700;display:grid}.brand div{flex-direction:column;line-height:1.15;display:flex}.brand strong{letter-spacing:.02em;font-family:Georgia,Times New Roman,serif;font-size:19px}.brand span:last-child{color:#aec2b8;letter-spacing:.16em;text-transform:uppercase;margin-top:4px;font-size:11px}.nav-list{gap:5px;display:grid}.nav-item{color:#bcd0c7;text-align:left;background:0 0;border:1px solid #0000;border-radius:5px;grid-template-columns:22px 1fr auto;align-items:center;width:100%;padding:11px 12px;display:grid}.nav-item:not(:disabled){cursor:pointer}.nav-item:disabled{color:#718c81}.nav-item small{color:#769387;font-size:9px}.nav-item.is-active{color:#fff;background:#ffffff1a;border-color:#ffffff17}.nav-arrow{opacity:.6}.sidebar-note{color:#e9dfc7;border-left:2px solid var(--gold);background:#22443a;gap:10px;margin:auto 4px 18px;padding:14px;display:flex}.sidebar-note svg{flex:none;margin-top:1px}.sidebar-note strong{font-size:12px;line-height:1.5;display:block}.sidebar-note p{color:#aec2b8;margin:6px 0 0;font-size:11px;line-height:1.55}.profile{border-top:1px solid #ffffff1f;align-items:center;gap:10px;padding:15px 8px 0;display:flex}.avatar{width:34px;height:34px;color:var(--green-950);background:var(--gold);border-radius:50%;place-items:center;font-weight:700;display:grid}.profile div{flex-direction:column;gap:3px;display:flex}.profile strong{font-size:12px}.profile span:last-child{color:#91aa9f;font-size:11px}.main-content{grid-column:2;width:min(1440px,100%);min-height:100vh;padding:29px 38px 22px}.topbar{justify-content:space-between;align-items:flex-start;gap:30px;margin-bottom:22px;display:flex}.eyebrow,.section-kicker{color:#66756f;letter-spacing:.13em;text-transform:uppercase;margin:0 0 7px;font-size:10px;font-weight:800}.topbar h1{letter-spacing:-.025em;margin:0;font-family:Georgia,Noto Serif SC,serif;font-size:clamp(29px,2.25vw,37px);font-weight:500}.topbar-copy{color:var(--muted);margin:9px 0 0;font-size:13px}.version-status{color:#315a4d;background:#e2ece6;border:1px solid #c7d9cf;border-radius:4px;flex:none;align-items:center;gap:8px;margin-top:5px;padding:8px 11px;font-size:11px;font-weight:800;display:flex}.status-dot{background:#2f7a5e;border-radius:50%;width:7px;height:7px;box-shadow:0 0 0 4px #2f7a5e1f}.hero-grid{grid-template-columns:minmax(0,1fr) 340px;gap:18px;display:grid}.challenge-entry,.time-panel,.route-explainer,.level-section,.evidence-panel{background:var(--paper);border:1px solid var(--line);box-shadow:0 8px 24px #2c312d09}.challenge-entry{border-top:3px solid var(--accent);padding:22px 27px 24px}.entry-label{color:#8c432d;letter-spacing:.08em;align-items:center;gap:6px;font-size:11px;font-weight:800;display:inline-flex}.entry-content{grid-template-columns:minmax(0,1fr) auto;gap:25px;margin-top:10px;display:grid}.entry-content h2,.time-heading h2,.section-heading h2,.evidence-panel h2{margin:0;font-family:Georgia,Noto Serif SC,serif;font-size:21px;font-weight:600}.entry-content p{color:#59655f;max-width:680px;margin:10px 0 0;font-size:13px;line-height:1.75}.entry-stats{border:1px solid #e2ddd4;grid-template-columns:repeat(3,minmax(78px,1fr));min-width:275px;display:grid}.entry-stats div{text-align:center;border-right:1px solid #e2ddd4;flex-direction:column;justify-content:center;min-height:74px;padding:10px 12px;display:flex}.entry-stats div:last-child{border-right:0}.entry-stats strong{color:var(--green-800);font-family:Georgia,serif;font-size:17px}.entry-stats span{color:#7a837f;margin-top:5px;font-size:9px}.entry-actions{align-items:center;gap:11px;margin-top:20px;display:flex}.primary-action,.secondary-action,.level-action{cursor:pointer;border-radius:4px;justify-content:center;align-items:center;gap:8px;min-height:40px;padding:0 15px;font-size:12px;font-weight:800;display:inline-flex}.primary-action{color:#fff;background:var(--accent);border:1px solid #a64a2e}.primary-action:hover:not(:disabled){background:var(--accent-dark)}.primary-action:disabled{color:#bfc5c1;cursor:not-allowed;background:#e6e8e6;border-color:#d6d9d7}.secondary-action{color:#31584c;background:#fff;border:1px solid #b8c9c1}.secondary-action:hover{background:#f1f6f3}.demo-note{color:#81776f;align-items:center;gap:5px;margin-left:auto;font-size:9px;display:inline-flex}.time-panel{background:#eef2ed;padding:20px 21px}.time-heading{color:#315248;align-items:flex-start;gap:10px;display:flex}.time-heading svg{margin-top:2px}.time-heading .section-kicker{margin-bottom:4px}.time-heading h2{font-size:18px}.time-options{grid-template-columns:repeat(4,1fr);gap:6px;margin-top:17px;display:grid}.time-option{color:#56635e;cursor:pointer;background:#fbfcfa;border:1px solid #d1dbd5;border-radius:3px;flex-direction:column;align-items:center;min-height:56px;padding:8px 4px;display:flex}.time-option strong{font-family:Georgia,serif;font-size:18px}.time-option span{margin-top:2px;font-size:9px}.time-option.is-selected{color:#fff;background:var(--green-800);border-color:var(--green-800)}.session-plan{color:#355448;background:#fffdf9;border-left:3px solid #c8ab72;align-items:center;gap:10px;margin-top:12px;padding:10px 12px;display:flex}.session-plan div{flex-direction:column;gap:3px;display:flex}.session-plan strong{font-size:11px}.session-plan span{color:#6d7873;font-size:9px}.time-rule{color:#7a847f;margin:10px 0 0;font-size:9px;line-height:1.55}.route-explainer{margin-top:18px;padding:20px 24px 21px}.section-heading{justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.section-heading.compact{align-items:center}.route-caption{color:#78817e;font-size:10px}.route-flow{border:1px solid #e0dcd3;grid-template-columns:1fr 30px 1fr 30px 1.28fr;align-items:center;gap:0;margin-top:15px;display:grid}.route-step{color:#315448;align-items:center;gap:11px;min-height:72px;padding:13px 16px;display:flex;position:relative}.route-index{color:#c4c8c5;font-family:ui-monospace,monospace;font-size:9px;position:absolute;top:7px;right:9px}.route-step div{flex-direction:column;gap:4px;display:flex}.route-step strong,.route-outcomes strong{font-size:12px}.route-step div span{color:#7a837f;font-size:9px}.flow-arrow{color:#aaaead}.route-outcomes{border-left:1px solid #e0dcd3;grid-template-columns:1fr 1fr;min-height:72px;display:grid}.route-outcomes div{color:#426258;align-items:center;gap:8px;padding:12px;display:flex}.route-outcomes div:first-child{background:#edf4ef;border-right:1px solid #dce5df}.route-outcomes div:last-child{color:#76533c;background:#f8f0e6}.route-outcomes span{flex-direction:column;gap:3px;font-size:9px;display:flex}.level-section{margin-top:18px;padding:22px 24px 25px}.map-heading{align-items:center}.map-legend{color:#6e7773;align-items:center;gap:15px;font-size:9px;display:flex}.map-legend span{align-items:center;gap:5px;display:inline-flex}.legend-dot{border-radius:50%;width:7px;height:7px;display:inline-block}.legend-dot.ready{background:#3b765f}.legend-dot.challenge{background:var(--accent)}.legend-dot.unproven{background:#b9b9b5}.level-map{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 14px;margin-top:18px;display:grid}.level-card{background:#fff;border:1px solid #e1ddd5;grid-template-columns:42px minmax(0,1fr);min-height:182px;display:grid}.level-card.level-ready{border-color:#91b5a7;box-shadow:inset 3px 0 #3b765f}.level-card.level-challenge{box-shadow:inset 3px 0 0 var(--accent);border-color:#d9a18e}.level-rail{background:#f4f2ec;border-right:1px solid #e3dfd7;justify-content:center;padding-top:18px;display:flex;position:relative}.level-node{z-index:1;color:#fff;background:#8e9893;border-radius:50%;place-items:center;width:24px;height:24px;font-family:ui-monospace,monospace;font-size:9px;font-weight:800;display:grid;position:relative}.level-ready .level-node{background:#3b765f}.level-challenge .level-node{background:var(--accent)}.level-line{background:#cdd0cd;width:1px;position:absolute;top:42px;bottom:-11px;left:20px}.level-body{padding:16px 17px 14px;position:relative}.level-topline{justify-content:space-between;align-items:center;gap:10px;display:flex}.level-id{color:#7c8782;font-family:ui-monospace,monospace;font-size:10px;font-weight:800}.level-state{border-radius:3px;padding:3px 6px;font-size:8px;font-weight:800}.state-ready{color:#2f6652;background:#e2eee7}.state-challenge{color:#8d422c;background:#f3dfd7}.state-unproven{color:#777d79;background:#ececea}.level-body h3{margin:8px 0 5px;font-family:Georgia,Noto Serif SC,serif;font-size:16px}.level-body p{color:#69736e;margin:0;padding-right:105px;font-size:10px;line-height:1.55}.level-meta{color:#808783;align-items:center;gap:12px;margin-top:12px;font-size:9px;display:flex}.level-meta span{align-items:center;gap:4px;display:inline-flex}.level-proof{color:#49655b;align-items:center;gap:5px;margin-top:9px;padding-right:105px;font-size:9px;line-height:1.45;display:flex}.level-action{color:#31584c;background:#f4f8f5;border:1px solid #bdcec6;min-height:31px;padding:0 9px;font-size:9px;position:absolute;bottom:14px;right:15px}.level-action:hover{color:#fff;background:var(--green-800);border-color:var(--green-800)}.principle-grid{grid-template-columns:1fr 1fr;gap:18px;margin-top:18px;display:grid}.evidence-panel{gap:13px;padding:20px 22px;display:flex}.panel-icon{color:#31584c;background:#e5eee8;border-radius:4px;flex:none;place-items:center;width:39px;height:39px;display:grid}.panel-icon.warm{color:#8b4b31;background:#f4e3d9}.evidence-panel h2{font-size:17px}.evidence-panel p{color:#6b7570;margin:8px 0 0;font-size:10px;line-height:1.65}.footer{color:#838b87;justify-content:space-between;gap:20px;padding:20px 2px 0;font-size:9px;display:flex}.dialog-backdrop{z-index:50;background:#111d199e;place-items:center;padding:30px;animation:.14s ease-out fade-in;display:grid;position:fixed;inset:0}.challenge-dialog{background:var(--paper);border:1px solid #bdb8ae;width:min(720px,100vw - 80px);max-height:calc(100vh - 70px);overflow:auto;box-shadow:0 24px 70px #0b141147}.dialog-header{color:#fff;background:var(--green-950);justify-content:space-between;align-items:flex-start;gap:20px;padding:21px 23px 17px;display:flex}.dialog-kicker{color:#abc0b7;letter-spacing:.09em;margin-bottom:5px;font-size:9px;font-weight:800;display:block}.dialog-header h2{margin:0;font-family:Georgia,Noto Serif SC,serif;font-size:20px;font-weight:600}.icon-button{color:#d6e2dc;cursor:pointer;background:0 0;border:1px solid #fff3;border-radius:3px;place-items:center;width:34px;height:34px;display:grid}.icon-button:hover{color:#fff;background:#ffffff14}.dialog-progress{color:#707a75;background:#f2f0ea;border-bottom:1px solid #e1ddd4;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:11px 23px;font-size:9px;display:grid}.dialog-progress div{background:#d9d9d4;height:3px;overflow:hidden}.dialog-progress i{background:var(--accent);width:100%;height:100%;display:block}.question-stage,.result-stage{padding:25px 28px 24px}.question-label{color:#8b4a34;align-items:center;gap:6px;font-size:10px;font-weight:800;display:inline-flex}.question-stage h3,.result-stage h3{margin:12px 0 18px;font-family:Georgia,Noto Serif SC,serif;font-size:20px;font-weight:600;line-height:1.55}.answer-list{gap:9px;display:grid}.answer-option{color:#3d4a45;text-align:left;cursor:pointer;background:#fff;border:1px solid #ddd9d1;border-radius:4px;align-items:center;gap:12px;min-height:48px;padding:8px 13px;display:flex}.answer-option:hover{background:#f7faf8;border-color:#9cb4aa}.answer-option.is-selected{color:#274d40;background:#edf4ef;border-color:#5f8a78}.answer-option>span{color:#57635e;background:#f0efeb;border-radius:50%;flex:none;place-items:center;width:26px;height:26px;font-family:ui-monospace,monospace;font-size:10px;font-weight:800;display:grid}.answer-option.is-selected>span{color:#fff;background:var(--green-700)}.dialog-actions{border-top:1px solid #e3dfd7;justify-content:space-between;align-items:center;gap:20px;margin-top:22px;padding-top:17px;display:flex}.dialog-actions>span{color:#7c8480;max-width:360px;font-size:9px;line-height:1.5}.result-stage{position:relative}.result-symbol{color:#34705a;background:#e5f0e9;border-radius:50%;place-items:center;width:49px;height:49px;margin-bottom:13px;display:grid}.needs-work .result-symbol{color:#9a622b;background:#f6eadd}.result-kicker{color:#6c7772;letter-spacing:.08em;font-size:9px;font-weight:800}.result-stage h3{margin:7px 0 9px;font-size:22px}.result-stage>p{color:#606c66;margin:0;font-size:12px;line-height:1.75}.branch-preview{grid-template-columns:1fr 1fr;gap:9px;margin-top:18px;display:grid}.branch-preview>div{color:#8a918d;background:#f3f2ee;border:1px solid #e1ded7;align-items:center;gap:10px;min-height:54px;padding:10px 12px;display:flex}.branch-preview>div.is-active{color:#31584c;background:#edf4ef;border-color:#9eb8ad}.needs-work .branch-preview>div.is-active{color:#7b5438;background:#f8f0e7;border-color:#dfc4a5}.branch-preview span{flex-direction:column;gap:2px;font-size:9px;display:flex}.branch-preview strong{font-size:11px}.result-actions{margin-top:19px}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@media (width<=1260px){.main-content{padding-left:26px;padding-right:26px}.hero-grid{grid-template-columns:minmax(0,1fr) 310px}.entry-content{grid-template-columns:1fr}.entry-stats{min-width:0}.demo-note{display:none}.level-body p{padding-right:80px}}@media (height<=740px){.sidebar-note{display:none}}