@font-face{font-family:Practice Sans;src:url('/assets/fonts/tenon-sc.woff2') format('woff2');font-style:normal;font-weight:100 900;font-display:swap}
@font-face{font-family:Manrope;src:url('/assets/fonts/manrope-latin.woff2') format('woff2');font-style:normal;font-weight:200 800;font-display:swap}
:root{color-scheme:light;--paper:#fbfcfb;--ink:#25352f;--muted:#607169;--green:#255747;--tint:#eef3ef;--line:#d9e1dc;--surface:#fff;--soft:#e0eae3;--shadow:0 18px 54px #2543320b}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--paper:#182620;--ink:#ecf2ed;--muted:#adbbb2;--green:#a3d1b7;--tint:#20342a;--line:#3b5145;--surface:#253b30;--soft:#345540;--shadow:none}}
:root[data-theme=dark]{color-scheme:dark;--paper:#182620;--ink:#ecf2ed;--muted:#adbbb2;--green:#a3d1b7;--tint:#20342a;--line:#3b5145;--surface:#253b30;--soft:#345540;--shadow:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Manrope,"Practice Sans","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.55}button,svg{flex-shrink:0}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}h1,h2,h3,p{margin:0}h1,h2,h3{text-wrap:balance}h1{font-size:clamp(38px,4.7vw,60px);font-weight:550;line-height:1.38;letter-spacing:-.055em}h2{font-size:34px;line-height:1.45;font-weight:550;letter-spacing:-.035em}h3{font-size:21px;font-weight:550;line-height:1.6}p{text-wrap:pretty}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:5px;border-radius:6px}a:hover{color:var(--green)}[hidden]{display:none!important}.wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}.skip-link{position:absolute;left:16px;top:-90px;padding:12px 20px;background:var(--surface);z-index:10;border:1px solid var(--line);border-radius:12px}.skip-link:focus{top:16px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.site-header{display:flex;align-items:center;gap:32px;height:108px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;font-size:19px;letter-spacing:-.035em;font-weight:600;white-space:nowrap}.brand svg{color:var(--green);width:34px;height:34px;stroke-width:1.65}.site-header nav{display:flex;gap:32px;margin-left:auto;font-size:14px}.theme-toggle{display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line);border-radius:50%;background:transparent}.theme-toggle svg{width:19px;height:19px}.hero{display:grid;grid-template-columns:1.12fr 1fr;gap:80px;align-items:center;padding-block:92px 100px}.site-purpose,.section-kicker{color:var(--green);font-size:14px;margin-bottom:22px;font-weight:550}.hero-intro{font-size:17px;line-height:1.95;color:var(--muted);margin-top:28px}.text-link{display:inline-flex;align-items:center;gap:14px;font-size:15px;font-weight:550;margin-top:30px}.text-link svg{width:20px;height:20px}.flow-illustration{position:relative;padding:34px 48px 28px;background:var(--tint);border-radius:36px;display:flex;align-items:center;flex-direction:column}.paper{width:100%;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px 25px;box-shadow:var(--shadow)}.paper-source{transform:rotate(-3deg);margin-inline-end:20px}.paper-label{color:var(--muted);font-size:12px;display:block;margin-bottom:15px}.writing{display:grid;gap:9px}.writing i{display:block;width:93%;height:4px;border-radius:3px;background:var(--soft)}.writing i:nth-child(2){width:77%}.writing i:nth-child(3){width:85%}.paper-source p{font-size:12px;margin-top:15px;color:var(--muted)}.flow-bridge{display:flex;align-items:center;flex-direction:column;height:40px;color:var(--green)}.flow-bridge span{height:24px;border-left:1px solid var(--line)}.flow-bridge svg{width:14px;height:14px;margin-top:-5px}.thought{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--green);white-space:nowrap}.thought-dot{width:6px;height:6px;border-radius:50%;background:currentColor}.thought-divider{height:13px;border-left:1px solid var(--line);margin-inline:3px}.paper-result{transform:rotate(2deg);margin-left:16px}.paper-result p{font-size:13px;display:flex;align-items:center;gap:10px;margin-top:8px}.mini-check{width:14px;height:14px;border:1px solid var(--green);border-radius:4px;position:relative}.mini-check:after{content:"";width:6px;height:3px;border-left:1px solid var(--green);border-bottom:1px solid var(--green);transform:rotate(-45deg);position:absolute;left:3px;top:4px}.figure-caption{font-size:11px;color:var(--muted);margin-top:24px}.notes-section{padding-block:12px 108px}.section-intro{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:38px}.section-kicker{margin-bottom:10px}.section-intro>p{color:var(--muted);font-size:14px;line-height:1.9}.note-entry{display:grid;grid-template-columns:160px 1fr 24px;align-items:center;gap:36px;border-top:1px solid var(--line);padding:29px 0}.note-entry:last-child{border-bottom:1px solid var(--line)}.note-meta{font-size:13px;color:var(--green);line-height:1.9}.note-meta span{display:block;font-size:12px;color:var(--muted);margin-top:3px}.note-entry h3{transition:color .2s}.note-entry p{font-size:14px;color:var(--muted);margin-top:8px}.note-entry>svg{width:20px;height:20px;color:var(--green)}.lab-section{padding-block:80px;background:var(--tint)}.lab-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:72px;align-items:center}.lab-copy>p:not(.section-kicker){color:var(--muted);font-size:15px;margin-top:22px;line-height:1.9}.lab-copy .lab-disclosure{font-size:12px!important;margin-top:24px!important}.experiment{padding:30px;background:var(--surface);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow)}.experiment-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.experiment-heading h3{font-size:15px}.experiment-heading>span{font-size:12px;color:var(--green)}.experiment-steps{display:flex;justify-content:space-between;list-style:none;padding:0;margin:28px 0;gap:8px}.experiment-steps li{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted)}.experiment-steps li>span{display:grid;place-items:center;width:25px;height:25px;border:1px solid var(--line);border-radius:50%;font-size:11px;transition:background .3s,color .3s}.experiment-steps .is-active{color:var(--green);font-weight:600}.experiment-steps .is-active>span,.experiment-steps .is-complete>span{background:var(--green);color:var(--surface);border-color:var(--green)}.experiment-output{background:var(--tint);border-radius:16px;padding:20px;min-height:194px}.output-label{color:var(--muted);font-size:11px;margin-bottom:10px}#experiment-text{font-size:15px;line-height:1.85;min-height:56px}.output-detail{font-size:12px;color:var(--muted);line-height:1.85;margin-top:12px}.experiment-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;min-height:44px;margin-top:22px}#review-actions{display:flex;gap:8px;flex-wrap:wrap}.button{font-size:12px;padding:10px 18px;border:1px solid transparent;border-radius:30px;min-height:42px}.primary{background:var(--green);color:var(--surface)}.secondary{background:transparent;border-color:var(--line)}.reset-button{font-size:12px;background:none;border:0;text-decoration:underline;text-underline-offset:4px;padding:10px 0;color:var(--muted)}.about-section{display:grid;grid-template-columns:1fr 1.65fr;gap:80px;padding-block:100px}.about-section h2{font-size:28px}.about-section p{color:var(--muted);font-size:15px;line-height:2;max-width:40em}.about-section p+p{margin-top:16px}.about-signature{display:block;margin-top:24px;color:var(--green);font-size:14px}.site-footer{border-top:1px solid var(--line);padding-block:30px}.site-footer>div{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;gap:20px}.filing{text-align:center;margin-top:24px;font-size:12px;color:var(--muted)}.article-wrap{width:min(760px,calc(100% - 64px));margin:auto}.article-header{padding-block:64px 38px;border-bottom:1px solid var(--line)}.back-link{font-size:13px;color:var(--muted);display:inline-flex;gap:8px;align-items:center;margin-bottom:36px}.back-link svg{width:16px;height:16px}.article-header h1{font-size:42px;line-height:1.5;letter-spacing:-.035em}.article-deck{font-size:17px;color:var(--muted);margin-top:22px;line-height:1.95}.article-content{padding-block:12px 60px}.article-content h2{font-size:25px;margin:36px 0 16px}.article-content p{margin-block:16px;font-size:16px;line-height:2}.article-content ul,.article-content ol{padding-left:24px;line-height:2}.article-content li{margin-block:10px}.article-content blockquote{margin:24px 0;padding:20px 26px;background:var(--tint);border-left:3px solid var(--green);border-radius:0 16px 16px 0}.article-content blockquote p{margin:0}.article-content .note-aside{font-size:14px;color:var(--muted)}.article-content strong{font-weight:600}.article-next{border-top:1px solid var(--line);padding-block:26px 52px;display:flex;justify-content:space-between;gap:24px;font-size:14px}.article-next a{color:var(--green)}.article-content .checklist{list-style:none;padding:22px 26px;background:var(--tint);border-radius:20px}.article-content .checklist li{margin:8px 0}.error-page{min-height:55vh;padding-block:100px}
@media(min-width:901px) and (prefers-reduced-motion:no-preference){.hero-copy{animation:arrive .8s both}.flow-illustration{animation:arrive 1s .1s both}@keyframes arrive{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}}
@media(max-width:1000px){.wrap{width:calc(100% - 56px)}.hero{gap:40px;padding-block:70px}.flow-illustration{padding:28px 30px}.lab-layout{gap:36px}.experiment{padding:24px}.note-entry{grid-template-columns:120px 1fr 20px;gap:20px}.site-header{gap:22px}.site-header nav{gap:22px}.lab-copy br{display:none}}
@media(max-width:760px){.wrap{width:calc(100% - 40px)}.site-header{height:auto;min-height:90px;flex-wrap:wrap;gap:16px 12px;padding-block:22px}.brand{font-size:17px}.brand svg{width:29px;height:29px}.theme-toggle{margin-left:auto;width:36px;height:36px}.site-header nav{order:3;width:100%;margin:0;gap:28px;font-size:13px}.hero{grid-template-columns:1fr;gap:40px;padding-block:48px 62px}.hero h1{font-size:44px}.hero-intro{font-size:16px;margin-top:20px}.site-purpose{margin-bottom:18px;font-size:13px}.flow-illustration{width:min(440px,100%);margin-inline:auto;padding:28px 46px}.section-intro{display:block;margin-bottom:28px}.section-intro>p{margin-top:16px}.desktop-break{display:none}h2{font-size:29px}.notes-section{padding-bottom:62px}.note-entry{grid-template-columns:1fr 20px;gap:10px 16px;padding-block:25px}.note-meta{grid-column:1 / -1;display:flex;gap:12px;font-size:12px}.note-meta span{margin:0}.note-entry h3{font-size:19px}.note-entry p{font-size:13px}.lab-section{padding-block:52px}.lab-layout{grid-template-columns:1fr;gap:32px}.experiment{padding:22px}.about-section{grid-template-columns:1fr;gap:24px;padding-block:58px}.about-section h2{font-size:27px}.site-footer>div{flex-direction:column;gap:8px}.filing{margin-top:20px}.article-wrap{width:calc(100% - 40px)}.article-header{padding-top:38px}.article-header h1{font-size:31px}.article-deck{font-size:16px}.article-content h2{font-size:23px}.article-content p,.article-content li{font-size:15px}.article-next{flex-direction:column;gap:12px}.back-link{margin-bottom:28px}}
@media(max-width:370px){.hero h1{font-size:32px}.flow-illustration{padding-inline:26px}.experiment{padding:18px}.experiment-steps{gap:5px}.experiment-steps li{gap:4px;font-size:11px}.experiment-steps li>span{width:21px;height:21px}.button{padding-inline:13px}.experiment-output{padding:16px}.experiment-heading{gap:6px}.experiment-heading h3{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
button[aria-disabled=true]{cursor:wait;opacity:.55}