@font-face{font-family:Instrument;src:url('../../assets/fonts/instrument-sans-latin-400-normal.woff2') format('woff2');font-weight:400;font-display:swap}@font-face{font-family:Instrument;src:url('../../assets/fonts/instrument-sans-latin-500-normal.woff2') format('woff2');font-weight:500;font-display:swap}@font-face{font-family:Instrument;src:url('../../assets/fonts/instrument-sans-latin-600-normal.woff2') format('woff2');font-weight:600 800;font-display:swap}@font-face{font-family:JetBrains;src:url('../../assets/fonts/jetbrains-mono-latin-400-normal.woff2') format('woff2');font-weight:400 700;font-display:swap}
:root{color-scheme:dark;--bg:#0e1419;--panel:#172127;--raised:#202d34;--line:#344149;--fg:#edf2f0;--muted:#a8b7bc;--app-accent:#ff8a1f;--accent-text:#ffae66;--soft-orange:#ff8a1f12;--font:Instrument,system-ui,sans-serif;--mono:JetBrains,monospace;--danger:#ffb1a3;--shadow:0 16px 50px #00000015}:root[data-theme=light]{color-scheme:light;--bg:#f4f2eb;--panel:#fffef9;--raised:#ecece5;--line:#d7dcd5;--fg:#233b3c;--muted:#5d706f;--accent-text:#a34b00;--soft-orange:#fff0df;--danger:#a22f1c;--shadow:0 16px 50px #233b3c06}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.65 var(--font)}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{min-height:44px;border:1px solid var(--line);border-radius:9px;padding:10px 15px;background:var(--panel);color:var(--fg);font-size:13px;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s}button:hover{border-color:var(--app-accent);background:var(--soft-orange)}button[aria-pressed=true],button.active{border-color:var(--app-accent);color:var(--accent-text);background:var(--soft-orange)}button.primary{background:var(--app-accent);border-color:var(--app-accent);color:#321b08}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,canvas:focus-visible,summary:focus-visible,.table-scroll:focus-visible{outline:3px solid var(--app-accent);outline-offset:4px}a{color:inherit;text-underline-offset:5px}input[type=number],select,textarea{display:block;width:100%;min-width:0;min-height:44px;margin-top:5px;padding:9px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg);font-size:16px}input[type=range]{width:100%;min-height:44px;accent-color:var(--app-accent);cursor:pointer}textarea{resize:vertical;line-height:1.7}label{display:block;color:var(--muted);font-size:12px}output{font:12px var(--mono);color:var(--accent-text)}h1,h2,h3,p{margin:0}h2{font-size:25px;font-weight:600;line-height:1.25;letter-spacing:-.035em}h3{font-size:16px;font-weight:600;line-height:1.35}code{font:12px/1.9 var(--mono);color:var(--accent-text)}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip-link{position:fixed;top:-100px;left:16px;z-index:100;background:var(--app-accent);color:#24170a;padding:12px 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h1{font-size:clamp(42px,4.8vw,76px);font-weight:600;line-height:1.05;letter-spacing:-.06em}.intro h1>span{color:var(--app-accent)}.intro>div>p:not(.eyebrow){max-width:590px;margin-top:20px;color:var(--muted);font-size:16px}.text-link{display:inline-flex;align-items:center;gap:36px;min-height:44px;margin-top:15px;text-decoration:none;font-size:13px;font-weight:600;color:var(--accent-text)}.text-link span{font-size:25px}.rule-card{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:16px;padding:28px 30px;background:radial-gradient(ellipse at 95% 0%,#ff8a1f14,transparent 65%),var(--panel)}.rule-card:after{content:'';position:absolute;right:-50px;top:-80px;width:180px;height:180px;border:1px solid #ff8a1f29;border-radius:50%;pointer-events:none}.rule-equation{font:clamp(26px,3vw,42px)/1.4 var(--mono);letter-spacing:-.06em;margin:12px 0 20px}.rule-equation span{font-size:.75em}.rule-equation em{font-style:normal;color:var(--accent-text)}.rule-steps{display:flex;flex-wrap:wrap;gap:8px 20px;border-top:1px solid var(--line);padding-top:15px;font-size:11px;color:var(--muted)}.rule-steps b{color:var(--accent-text);font:10px var(--mono);margin-right:5px}.section-heading,.bench-heading{display:flex;justify-content:space-between;align-items:end;gap:20px}.section-heading>p{max-width:300px;font-size:12px;color:var(--muted);text-align:right}.experiment-cards{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:9px;margin:18px 0 28px}.experiment-cards button{position:relative;min-width:0;text-align:left;min-height:108px;padding:15px 13px;display:flex;flex-direction:column;align-items:start;gap:8px;overflow:hidden}.experiment-cards button:after{content:'';position:absolute;right:-20px;top:-22px;width:70px;height:70px;border-radius:50%;border:1px solid #ff8a1f22;pointer-events:none}.experiment-cards button span,.experiment-cards button small{font:10px/1.5 var(--mono);color:var(--muted)}.experiment-cards button strong,.experiment-cards button b{font-size:13px;line-height:1.35}.experiment-cards .experiment-number{color:var(--accent-text)}.experiment-cards .experiment-mode{margin-top:auto}.experiment-cards button[aria-pressed=true]:before,.experiment-cards button.selected:before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--app-accent)}.experiment-cards button.selected{border-color:var(--app-accent);background:var(--soft-orange)}.workbench,.journey{border:1px solid var(--line);border-radius:18px;background:var(--panel);overflow:hidden;box-shadow:var(--shadow);scroll-margin-top:16px}.bench-heading{padding:22px 24px;align-items:center}.bench-heading .eyebrow{margin-bottom:5px}.bench-heading h2{font-size:23px}.button-row{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.map-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:13px 20px;background:color-mix(in srgb,var(--bg) 60%,var(--panel));border-block:1px solid var(--line)}.segmented{display:flex;gap:4px;flex-wrap:wrap}.segmented button{font-size:12px}.map-options{display:flex;gap:12px;align-items:end;flex-wrap:wrap}.map-options label{display:flex;align-items:center;gap:7px}.map-options select{width:auto;font-size:12px;margin:0;padding-inline:10px}.map-options #expand{font-size:12px}.map-deck{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1px;background:var(--line)}.map-deck[data-layout=mandelbrot],.map-deck[data-layout=julia]{grid-template-columns:1fr}.map-deck[data-layout=mandelbrot] #juliaCard,.map-deck[data-layout=julia] #mandelbrotCard{display:none}.map-card{min-width:0;background:var(--panel)}.map-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 18px;min-height:90px}.map-card.selected .map-heading{box-shadow:inset 0 3px var(--app-accent)}.map-heading>div:first-child{min-width:0}.map-heading 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var(--mono);pointer-events:none}.render-progress.done{opacity:0}.map-axis-note{position:absolute;bottom:12px;left:14px;background:#07111daa;border:1px solid #ffffff16;border-radius:5px;padding:4px 8px;font:9px var(--mono);color:#d0dfe8;pointer-events:none}.map-footer{display:flex;justify-content:space-between;gap:8px;padding:10px 16px;min-height:39px;color:var(--muted);font:10px/1.8 var(--mono)}.map-footer>span{overflow-wrap:anywhere}.map-footer>span:last-child{color:var(--accent-text);white-space:nowrap}.parameter-strip{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:18px 24px;border-top:1px solid var(--line);background:var(--soft-orange)}.parameter-caption{display:flex;align-items:center;gap:15px;min-width:0}.connection-mark{font:30px var(--mono);color:var(--accent-text)}.parameter-caption strong{display:block;margin-top:4px;font:18px/1.5 var(--mono);color:var(--fg);overflow-wrap:anywhere}.inline-form{display:flex;gap:10px;align-items:end;min-width:0}.inline-form label{min-width:0;flex:1}.inline-form input{max-width:180px;font:13px/1.7 var(--mono)}.inline-form button{flex-shrink:0}.map-help{padding:14px 24px;font-size:12px;color:var(--muted);border-top:1px solid var(--line)}details>summary{cursor:pointer;list-style:none;min-height:50px;display:flex;align-items:center;gap:15px;font-size:12px;font-weight:600;padding:14px 24px}details>summary::-webkit-details-marker{display:none}details>summary:before{content:'+';font-size:22px;color:var(--accent-text);font-weight:400}details[open]>summary:before{content:'−'}details>summary span{font-size:11px;color:var(--muted);font-weight:400}.fine-controls{border-top:1px solid var(--line);background:color-mix(in srgb,var(--bg) 45%,var(--panel))}.fine-controls-grid{display:grid;grid-template-columns:1.2fr .8fr 3fr;gap:22px;padding:4px 24px 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select{width:140px;font-size:12px;margin:0}.step-scrubber{display:flex;gap:15px;align-items:center;padding:0 24px 12px;border-bottom:1px solid var(--line)}.step-scrubber label,.step-scrubber output{white-space:nowrap;font-size:11px}.journey-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.orbit-panel{min-width:0;border-right:1px solid var(--line);background:color-mix(in srgb,var(--bg) 50%,var(--panel))}.chart-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:20px 24px}.chart-heading>span{font:10px/1.6 var(--mono);color:var(--muted);text-align:right}.chart-heading h3{font-size:15px}.chart-heading .eyebrow{margin-bottom:5px}.orbit-panel canvas{display:block;width:100%;height:340px}.chart-note{padding:10px 24px 18px;color:var(--muted);font-size:11px}.step-guide{padding:24px;display:flex;flex-direction:column;gap:16px;min-width:0}.step-badge{align-self:start;padding:5px 9px;border:1px solid color-mix(in srgb,var(--app-accent) 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20px;border:1px solid var(--line);border-radius:10px;padding:12px 16px;background:var(--bg)}.comparison-strip p{font-size:12px;color:var(--muted)}.comparison-strip button{font-size:11px;flex-shrink:0}.steps-table{border-top:1px solid var(--line)}.table-scroll{max-height:320px;overflow:auto;margin:0 24px 20px}table{width:100%;border-collapse:collapse;text-align:left;font:11px/1.8 var(--mono)}th,td{padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}th{position:sticky;top:0;background:var(--raised);color:var(--muted);font-weight:400}tr.active,tr[aria-current=true]{background:var(--soft-orange);color:var(--accent-text)}.prediction-panel{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:28px 30px;margin-top:24px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}.prediction-panel h2{margin-bottom:12px}.prediction-panel p{font-size:13px;line-height:1.8;color:var(--muted)}.prediction-panel>div>label{font-size:16px;font-weight:600;color:var(--fg);line-height:1.6}.prediction-panel textarea{margin-top:12px;font-size:14px}.prediction-panel .field-help{font-size:11px;margin-top:9px}.watch-box{margin-top:18px;padding-left:14px;border-left:2px solid var(--app-accent)}.watch-box p{font-size:12px}.learn-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}.learn-card{padding:24px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}.learn-card h2{font-size:21px;margin-bottom:12px}.learn-card p:not(.eyebrow){font-size:13px;color:var(--muted);line-height:1.8}.model-notes{border-block:1px solid var(--line)}.vocabulary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;padding:10px 24px 22px}.vocabulary>*{margin:0}.vocabulary h3,.vocabulary dt,.vocabulary strong{font-size:13px;font-weight:600;color:var(--fg)}.vocabulary p,.vocabulary dd{font-size:12px;line-height:1.8;color:var(--muted);margin:6px 0 0}#modelLimits{padding:0 24px 16px;max-width:1000px;font-size:12px;color:var(--muted)}.model-notes>a{display:inline-block;margin:0 24px 24px;font-size:12px;color:var(--accent-text)}.app-footer{display:flex;justify-content:space-between;gap:15px;margin-top:24px;color:var(--muted);font-size:11px}.map-deck.expanded .map-surface{height:70dvh;min-height:400px}#workbench:fullscreen{border-radius:0;overflow:auto;max-width:none;width:100%;height:100%;background:var(--bg)}#workbench:fullscreen .map-surface{height:calc(100dvh - 350px);min-height:340px}.map-deck:fullscreen{width:100%;height:100%;overflow:auto;background:var(--bg);align-content:stretch}.map-deck:fullscreen .map-card{display:flex;flex-direction:column}.map-deck:fullscreen .map-surface{height:calc(100dvh - 135px);flex:1;min-height:340px}
@media(max-width:1150px){.intro{gap:5%}.rule-card{padding:22px}.experiment-cards{grid-template-columns:repeat(3,minmax(0,1fr))}.experiment-cards button{min-height:90px}.map-toolbar{flex-wrap:wrap}.map-options{margin-left:auto}.fine-controls-grid{grid-template-columns:1fr 1fr}.fine-controls-grid form{grid-column:1/-1}.fine-controls-grid .inline-form input{max-width:none}.map-heading{padding-inline:13px}.map-heading p{font-size:10px}.playback{flex-wrap:wrap}.pace-label{margin-left:auto}.vocabulary{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:820px){.app-main{padding:28px 16px}.header-label{display:none}.intro{grid-template-columns:1fr;gap:24px}.intro>div>p:not(.eyebrow){max-width:620px}.rule-card{max-width:none}.rule-equation{font-size:32px}.rule-steps{gap:12px 24px}.section-heading{align-items:start}.section-heading>p{max-width:220px}.map-deck{grid-template-columns:1fr}.map-surface{height:400px}.bench-heading{flex-wrap:wrap}.map-toolbar{gap:13px}.map-options{margin:0}.parameter-strip,.probe-strip{flex-wrap:wrap;gap:15px}.parameter-strip .inline-form,.probe-strip .inline-form{width:100%}.parameter-strip .inline-form input,.probe-strip .inline-form input{max-width:none}.journey-grid{grid-template-columns:1fr}.orbit-panel{border-right:0;border-bottom:1px solid var(--line)}.orbit-panel canvas{height:350px}.prediction-panel{gap:24px;padding:24px;grid-template-columns:1fr}.learn-grid{grid-template-columns:1fr}.learn-card{padding:22px}.map-help{font-size:12px}.step-guide{gap:14px}.step-guide h3{font-size:23px}.step-guide p{font-size:14px}.step-guide .current-values{margin-top:5px}.map-deck:fullscreen .map-surface{flex:none;height:380px}}
@media(max-width:520px){.app-header{min-height:64px;padding:10px 14px}.brand{font-size:10px;gap:8px}.app-main{padding:25px 12px calc(25px + env(safe-area-inset-bottom))}.intro{margin-bottom:30px;gap:22px}.intro h1{font-size:42px}.intro>div>p:not(.eyebrow){font-size:14px;margin-top:16px}.rule-card{padding:18px 20px}.rule-equation{font-size:30px;margin-block:10px 16px}.rule-steps{gap:7px 15px;font-size:10px}.section-heading{display:block}.section-heading h2{font-size:23px}.section-heading>p{max-width:none;text-align:left;margin-top:9px;font-size:12px}.experiment-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin-top:15px}.experiment-cards button{padding:14px 12px;min-height:100px}.experiment-cards button strong{font-size:13px}.bench-heading{padding:19px 15px;gap:15px}.bench-heading h2{font-size:22px}.bench-heading>.button-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;width:100%}.bench-heading button{font-size:11px;padding-inline:7px}.journey .bench-heading>.button-row{grid-template-columns:repeat(2,minmax(0,1fr))}.map-toolbar{padding:12px 10px}.segmented{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));width:100%;gap:4px}.segmented button{padding-inline:5px;font-size:11px}.map-options{display:grid;grid-template-columns:1fr 1.1fr auto;gap:8px;width:100%;align-items:end}.map-options label{display:block;font-size:10px}.map-options select{width:100%;margin-top:4px;font-size:16px;padding-inline:7px}.map-options #expand{height:44px;padding:8px 11px;font-size:20px}.map-options #expand span{display:none}.map-heading{padding:12px;gap:8px}.map-heading [data-active]{min-height:44px;font-size:15px}.map-heading p{font-size:10px;margin-top:0;max-width:185px}.map-actions{gap:3px}.map-actions button{font-size:18px;width:44px}.map-surface{height:340px}.map-footer{padding:10px 12px;font-size:9px}.parameter-strip,.probe-strip{padding:15px}.parameter-caption strong{font-size:16px}.connection-mark{font-size:25px}.inline-form{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%}.inline-form label{font-size:11px}.inline-form input{font-size:16px;max-width:none}.inline-form>button{grid-column:1/-1}.map-help{padding:14px 15px;font-size:11px;line-height:1.8}details>summary{padding:14px 15px;font-size:12px;gap:10px;flex-wrap:wrap}details>summary span{display:none}.fine-controls-grid{padding:2px 15px 18px;gap:15px;grid-template-columns:1fr}.fine-controls-grid form{grid-column:auto;grid-template-columns:1fr 1fr}.fine-controls-grid .inline-form label:nth-child(3){grid-column:1/-1}.fine-controls-grid .inline-form input,.fine-controls-grid select{font-size:16px}.save-status{padding-inline:15px}.playback{padding:14px 15px;gap:10px}.playback>.button-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;width:100%}.playback .button-row button{font-size:11px;padding-inline:6px}.playback .button-row #play{grid-column:span 2}.pace-label{width:100%;justify-content:space-between;margin:0;font-size:12px}.pace-label select{width:66%;font-size:16px}.step-scrubber{padding:0 15px 10px;gap:10px}.step-scrubber label{font-size:10px}.step-scrubber output{font-size:10px;min-width:65px;text-align:right}.chart-heading{padding:18px 15px;gap:10px}.chart-heading h3{font-size:14px}.chart-heading>span{font-size:8px}.orbit-panel canvas{height:300px}.chart-note{padding:8px 15px 16px;font-size:10px}.step-guide{padding:20px 15px}.step-guide h3{font-size:22px}.step-guide p{font-size:13px}.current-values{gap:10px}.current-values strong{font-size:14px}.current-values span{font-size:10px}.distance-panel canvas{height:230px}.comparison-strip{margin:6px 15px 15px;padding:12px;flex-wrap:wrap;gap:10px}.comparison-strip button{width:100%;font-size:12px}.comparison-strip p{font-size:11px}.table-scroll{margin:0 15px 15px}th,td{padding:8px 10px}.prediction-panel{padding:20px 16px;gap:22px}.prediction-panel textarea{font-size:16px}.prediction-panel h2{font-size:22px}.prediction-panel>div>label{font-size:15px}.learn-grid{gap:12px}.learn-card{padding:21px 17px}.learn-card h2{font-size:21px}.vocabulary{padding:8px 15px 20px;grid-template-columns:1fr;gap:17px}#modelLimits{padding:0 15px 15px}.model-notes>a{margin-inline:15px}.app-footer{flex-direction:column;gap:5px;font-size:10px}#workbench:fullscreen .map-surface,.map-deck:fullscreen .map-surface{height:340px}.map-deck.expanded .map-surface{height:70dvh;min-height:340px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

tr.current,tr[aria-current="step"]{background:var(--soft-orange);color:var(--accent-text)}.vocabulary{margin:0}
.exit-fullscreen{display:none}.map-deck:fullscreen>.exit-fullscreen{display:block;position:fixed;right:16px;bottom:16px;z-index:20;background:var(--app-accent);color:#321b08;border-color:var(--app-accent);box-shadow:0 4px 20px #0008}
.preset-row{display:flex;align-items:end;flex-wrap:wrap;gap:12px 24px;padding:2px 24px 20px}.preset-row label{width:260px;max-width:100%}.preset-row p{font-size:12px;color:var(--muted);padding-bottom:10px}.learn-card .color-question{margin:15px 0 8px}#quizFeedback{margin-top:10px}@media(max-width:520px){.preset-row{padding-inline:15px}.preset-row label{width:100%}}