*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:22px}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.55}button,input,select{font:inherit}a{color:inherit;text-underline-offset:4px}button,a,input,select,summary{touch-action:manipulation}button,a,summary{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--pink);outline-offset:5px}button:focus-visible,input:focus-visible,select:focus-visible{position:relative;z-index:2}.shell{width:min(1180px,calc(100% - 64px));margin:auto}.skip{position:absolute;left:20px;top:-70px;z-index:10;background:var(--lime);color:var(--bg);padding:12px}.skip:focus{top:12px}
header{display:flex;justify-content:space-between;align-items:center;padding-block:26px;border-bottom:1px solid var(--line)}.wordmark{font:900 35px/1 var(--display);text-decoration:none;letter-spacing:-2px}.wordmark span{display:inline-block;border-left:1px solid var(--line);margin-left:20px;padding:8px 0 8px 20px;font:11px var(--mono);letter-spacing:2px}nav{display:flex;gap:25px;font-size:13px}nav a{text-decoration:none}nav a:hover{color:var(--lime)}
.hero{display:grid;grid-template-columns:1.12fr 1fr;align-items:center;gap:18px;padding-block:70px 62px;min-height:650px}.eyebrow{font:11px var(--mono);letter-spacing:2px;color:var(--lime);margin:0 0 20px}.pink{color:var(--pink)}h1,h2,h3,p,figure{margin-top:0}h1{font:900 clamp(42px,5.5vw,70px)/1.02 var(--display);letter-spacing:-3.5px;margin-bottom:28px}h1 em{font-style:normal;color:var(--lime)}.lead{color:var(--muted);font-size:18px;max-width:475px;margin-bottom:26px}.small,.privacy,.fine{font-size:12px;color:var(--muted)}.hero .small{margin-top:15px}.trio{margin:0;position:relative}.trio img{display:block;width:100%;height:auto;mix-blend-mode:screen}.trio figcaption{text-align:center;font:10px var(--mono);letter-spacing:3px;color:var(--muted);padding-top:14px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:26px;padding:14px 20px;border:1px solid var(--line);border-radius:5px;background:var(--panel);color:var(--text);font-weight:700;font-size:14px;line-height:1.4;text-decoration:none;min-height:48px}.button:hover{border-color:var(--lime)}.primary{color:var(--bg);background:var(--lime);border-color:var(--lime)}.primary:hover{background:#d1ff44}.button span{font-size:22px;line-height:1}.text-link{font-size:13px}.experience{padding-block:25px 60px}.intro{display:grid;grid-template-columns:1.2fr 1fr;gap:0 60px;align-items:start}.intro .eyebrow{grid-column:1/-1}h2{font:900 clamp(27px,3.2vw,38px)/1.14 var(--display);letter-spacing:-1px}.disclosure{color:var(--muted);font-size:13px;margin:0;border-left:2px solid var(--pink);padding:3px 0 3px 18px}.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:15px;padding:0;margin:30px 0 18px;color:var(--muted);font-size:12px}.steps span{font:11px var(--mono);color:var(--lime);margin-right:10px}
.exercise{border:1px solid var(--line);border-radius:9px;background:var(--panel);overflow:hidden;scroll-margin-top:22px}.exercise-head{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 26px;border-bottom:1px solid var(--line);background:#100b17}.exercise-head h3{font:700 16px var(--mono);margin:0}.tag{font:10px var(--mono);letter-spacing:1px;color:var(--lime)}.case-picker{display:flex;gap:7px;align-items:center;font-size:12px;color:var(--muted)}select{background:var(--panel-2);color:var(--text);border:1px solid var(--line);border-radius:4px;padding:8px}.stage-grid{display:grid;grid-template-columns:1.15fr 1fr}.snapshot{padding:28px;border-right:1px solid var(--line)}.decision{padding:28px}.snapshot h3,.decision h3{font-size:23px;line-height:1.2;letter-spacing:-.6px;margin-bottom:15px}.snapshot .observation{font-size:14px;color:var(--muted);min-height:66px}.reference{font:11px var(--mono);color:var(--muted)}.chart-head{display:flex;justify-content:space-between;gap:12px;font:10px var(--mono);color:var(--muted);margin-top:25px}.chart-head span:last-child{color:var(--lime)}.chart{display:block;width:100%;height:auto;overflow:visible;margin-top:8px}.chart text{fill:var(--muted);font:10px var(--mono)}.chart .grid{stroke:var(--line);stroke-width:1}.chart .reference-line{stroke:var(--muted);stroke-dasharray:3 5}.chart .series{fill:none;stroke:var(--lime);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}.chart .point{fill:var(--pink)}.chart-summary{font-size:12px;margin:10px 0 16px;color:var(--muted)}
fieldset{border:0;padding:0;margin:0 0 23px;min-width:0}legend{font-weight:700;font-size:14px;margin-bottom:12px}.choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.choice{position:relative;display:block;cursor:pointer}.choice input{position:absolute;opacity:0;width:1px;height:1px}.choice span{display:block;border:1px solid var(--line);border-radius:5px;padding:11px 4px;text-align:center;font-size:13px;background:var(--bg)}.choice input:checked+span{border-color:var(--lime);background:var(--lime-dark);color:var(--lime)}.choice input:focus-visible+span{outline:3px solid var(--pink);outline-offset:3px}.missing{display:flex;align-items:flex-start;gap:9px;margin:8px 0;padding:9px;border:1px solid var(--line);border-radius:4px;font-size:12px;color:var(--muted);cursor:pointer}.missing:has(input:checked){border-color:var(--pink);color:var(--text);background:#2e132b}.missing input{accent-color:var(--pink);margin:3px 0 0;flex-shrink:0}.hint{font-size:12px;color:var(--muted);margin:10px 0 19px}.decision .button{width:100%}.locked{border-left:3px solid var(--lime);padding:4px 0 4px 16px;margin-bottom:24px}.locked strong{display:block;font-size:30px;line-height:1.2;margin-bottom:8px}.locked p{color:var(--muted);font-size:13px;margin-bottom:10px}.locked .eyebrow{color:var(--lime);font-size:10px;margin-bottom:12px}
.outcome{border-top:1px solid var(--line);padding:27px;background:#100b17}.compare{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;margin:0 0 20px}.compare dt{color:var(--muted);font-size:11px;margin-bottom:7px}.compare dd{margin:0;font:700 clamp(19px,2.2vw,28px) var(--mono);overflow-wrap:anywhere}.compare dd small{display:block;font:10px/1.7 var(--mono);color:var(--muted);margin-top:5px}.outcome .interpretation{max-width:850px;font-size:14px}.outcome .limits{color:var(--muted);font-size:12px;margin:16px 0}.actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:22px 0}.secondary{border-color:var(--pink)}details{margin-top:16px;font-size:12px;color:var(--muted)}summary{cursor:pointer;min-height:36px;padding-block:8px;color:var(--text)}.table-wrap{max-height:280px;overflow:auto}table{width:100%;border-collapse:collapse;white-space:nowrap;font:11px var(--mono)}th,td{text-align:left;padding:9px;border-bottom:1px solid var(--line)}th{color:var(--text)}.provenance{display:grid;grid-template-columns:160px 1fr;gap:8px;margin:14px 0}.provenance dt{color:var(--text)}.provenance dd{margin:0;overflow-wrap:anywhere}.sources{padding-top:10px}.source-copy{font-size:12px}.later{border-left:2px solid var(--pink);padding:9px 0 9px 15px;margin:22px 0 8px;font-size:12px;color:var(--muted)}.next-step{display:flex;justify-content:space-between;gap:25px;border-top:1px solid var(--line);padding:26px}.next-step h3{font-size:20px;margin-bottom:8px}.next-step p{font-size:13px;color:var(--muted);max-width:540px;margin-bottom:0}.next-step .button{align-self:center;flex-shrink:0}.new-attempt{padding:0 26px 26px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}.new-attempt p{flex-basis:100%;font-size:12px;color:var(--muted);margin-bottom:0}.new-attempt button{font-size:12px;min-height:44px;padding:10px 16px}.status{min-height:24px;font-size:13px;color:var(--lime);margin:12px 0}.privacy{max-width:660px}.loading,.notice{padding:32px}.notice h3{font-size:22px}.copy-fallback{margin-top:12px}.copy-fallback input{display:block;width:100%;background:var(--bg);color:var(--text);padding:12px;border:1px solid var(--line);margin-top:7px}footer{border-top:1px solid var(--line);padding-block:26px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font:10px var(--mono);letter-spacing:1px}footer p{margin:0}
@media(max-width:860px){.shell{width:calc(100% - 40px)}.hero{gap:0;padding-block:48px;min-height:0}h1{font-size:48px;letter-spacing:-2.5px}.lead{font-size:16px}.intro{gap:20px}.stage-grid{grid-template-columns:1fr}.snapshot{border-right:0;border-bottom:1px solid var(--line)}.snapshot .observation{min-height:0}.chart{max-height:250px}.next-step{align-items:start}.next-step .button{max-width:230px}.compare dd{font-size:21px}}
@media(max-width:580px){.shell{width:calc(100% - 30px)}header{padding-block:22px}.wordmark{font-size:28px}.wordmark span{font-size:9px;margin-left:10px;padding-left:10px;letter-spacing:1px}nav{gap:15px;font-size:11px}nav a:first-child{display:none}.hero{grid-template-columns:1fr;position:relative;padding-top:40px;padding-bottom:28px}.hero-copy{z-index:1}h1{font-size:48px;letter-spacing:-2.9px}.lead{max-width:360px}.trio{width:74%;justify-self:end;margin-top:-12px}.trio figcaption{font-size:8px;letter-spacing:2px}.intro{display:block}.intro h2{max-width:340px}.intro .disclosure{margin-top:23px}.steps{gap:10px;font-size:10px;line-height:1.4;margin-top:25px}.steps span{display:block;margin-bottom:5px}.exercise-head{padding:17px 18px;flex-wrap:wrap;gap:12px}.exercise-head h3{font-size:14px}.snapshot,.decision,.outcome,.next-step{padding:22px 18px}.compare{grid-template-columns:1fr 1fr;gap:20px 14px}.compare>div:last-child{grid-column:1/-1;border-top:1px solid var(--line);padding-top:15px}.compare dd{font-size:20px}.compare>div:last-child dd{font-size:29px}.chart-head{font-size:9px}.next-step{display:block}.next-step .button{margin-top:20px;max-width:none;width:100%}.provenance{grid-template-columns:1fr;gap:3px}.provenance dd{margin-bottom:10px}.new-attempt{padding:0 18px 22px}.actions .button{width:100%}.new-attempt .button{flex:1}.reference{font-size:10px}footer{font-size:9px;letter-spacing:.5px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
.demo-film{margin:0;align-self:center;min-width:0;transform:rotate(1.5deg);filter:drop-shadow(12px 14px 0 #ec15ce33)}.demo-film video{display:block;width:100%;border:1px solid #e331c4;border-radius:12px;background:#09060f}.demo-film figcaption{font:10px var(--mono);letter-spacing:2px;margin-top:16px;color:var(--muted)}.measure-choice{padding:18px 22px;background:#14101b;border:1px solid var(--line);border-radius:9px;margin-bottom:18px;font-size:12px}.measure-choice>div:first-child{max-width:720px}.measure-choice p{color:var(--muted);margin:8px 0}.measure-choice .button{min-height:40px;padding:9px 14px;font-size:12px}.text-button{background:none;color:var(--muted);border:0;text-decoration:underline;cursor:pointer;margin-left:12px;min-height:40px}.measure-choice details{margin-top:0}.measure-choice #measurement-status{color:var(--lime)}@media(max-width:580px){.demo-film{margin:25px 0 12px;transform:none}.hero h1{font-size:52px}}
/* Keep the handoff to research prominent and readable on compact screens. */
.next-step .actions{margin-bottom:12px}.next-step .fine{max-width:760px}.measure-choice .button,.measure-choice .text-button{min-height:44px}.missing{font-size:14px;line-height:1.5;padding:12px}.hint{font-size:13px;line-height:1.6}.case-picker select,.copy-fallback input{font-size:16px}
@media(max-width:580px){.next-step .actions{gap:10px}.next-step .actions .button{margin-top:0}.next-step p{font-size:14px;line-height:1.6}.choices .choice span{font-size:14px;min-height:44px}.measure-choice{padding:18px}.measure-choice p{font-size:13px;line-height:1.6}}