:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#233838;background:#f5f6f2;font-synthesis:none;--teal:#165d55;--muted:#667570;--red:#c3534d;--blue:#3976c4;--line:#dce2db}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;background:#fff;border:1px solid #cbd5ce;border-radius:7px;padding:12px 18px;font-size:14px;font-weight:600;color:inherit;transition:background .15s}button:hover{background:#e7ede6}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #d6a457;outline-offset:4px}.primary{background:var(--teal);border-color:var(--teal);color:white;min-height:49px}.primary:hover{background:#10483f}.quiet{background:transparent;border:0;font-size:12px}.muted,small{color:var(--muted)}header{height:92px;margin:auto;max-width:1240px;padding:0 48px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-weight:750;letter-spacing:2px;text-decoration:none;color:inherit;font-size:15px;display:flex;align-items:center;gap:12px}.mark{font-size:30px;color:var(--teal);letter-spacing:-3px}.brand-sub{color:#78857e;font-size:10px;font-weight:500;letter-spacing:1.4px;margin-left:8px}main{max-width:1144px;margin:auto;padding:52px 0 36px;min-height:calc(100dvh - 158px)}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--teal);display:flex;align-items:center;gap:18px;margin-bottom:24px}.pill{font-size:9px;padding:6px 9px;letter-spacing:1px;border:1px solid #ccd8c9;border-radius:4px;color:#6d796e}h1{font-size:clamp(38px,4.4vw,60px);letter-spacing:-2.7px;font-weight:550;line-height:1.07;margin:0 0 24px}h2{font-size:28px;letter-spacing:-1px;font-weight:550;margin:0 0 12px}.lead{font-size:17px;line-height:1.7;color:#62716b;max-width:560px;margin:0 0 28px}.intro-grid{display:grid;grid-template-columns:1.13fr 1fr;gap:80px;align-items:start}.steps{display:grid;gap:22px;margin:33px 0}.steps>div{display:flex;gap:18px;align-items:start}.steps b{color:#819086;font-size:11px;padding:6px 0}.steps span{font-size:14px;font-weight:600}.steps small{font-size:12px;display:block;margin-top:5px;font-weight:400}.preview-card{background:#edf0e8;border:1px solid #d9e0d4;border-radius:14px;padding:24px 28px;margin-top:2px}.card-top{display:flex;justify-content:space-between;gap:8px;font-size:10px;letter-spacing:1.1px;font-weight:700;color:#5f7168}.card-top span{font-size:8px;font-weight:500;color:#7c897e}.demo{height:213px;position:relative;max-width:310px;margin:auto}.demo-line,.target-line{position:absolute;top:50%;left:8%;right:8%;border-top:1px dashed #abb9ab}.demo-bar{position:absolute;width:32px;height:96px;border-radius:3px;top:calc(50% - 48px);box-shadow:0 3px 9px #00000009}.demo-bar.red{left:22%}.demo-bar.blue{right:22%;transform:translateY(-21px)}.red{background:var(--red)}.blue{background:var(--blue)}.bar i,.demo-bar i{position:absolute;top:calc(50% - 1px);height:2px;background:#fff9;left:0;right:0}.bar i:after,.demo-bar i:after{content:'';position:absolute;width:5px;height:5px;background:white;border-radius:50%;top:-1.5px;left:calc(50% - 2.5px)}.demo-labels,.arena-labels{display:flex;justify-content:space-around;gap:12px;font-size:11px;color:#62716b}.dot{display:inline-block;width:6px;height:6px;border-radius:50%;vertical-align:middle;margin-right:6px}.preview-card p{text-align:center;font-size:12px;line-height:1.7;color:#7b877a;border-top:1px solid #d5ddd0;padding-top:18px;margin:23px 0 0}.join{margin-top:33px;padding-top:28px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 260px;gap:60px;align-items:center}label{display:block;font-size:12px;font-weight:600}label .muted{font-weight:400;margin-left:6px}input:not([type=checkbox]),select{background:#fbfcf9;border:1px solid #cdd7cd;border-radius:6px;padding:11px 12px;width:100%;margin:8px 0 12px;font-size:13px;color:#334a42}#participant{max-width:370px;display:block}.consent{display:flex;align-items:flex-start;gap:8px;font-size:11px;font-weight:400;line-height:1.6;margin:2px 0 10px}.consent input{accent-color:var(--teal);margin:3px 0 0;flex-shrink:0}.join small,.start-wrap small{display:block;font-size:10px;line-height:1.6}.start-wrap button{width:100%;display:flex;justify-content:space-between}.start-wrap small{text-align:center;margin-top:10px}footer{max-width:1240px;margin:auto;padding:23px 48px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;font-size:9px;letter-spacing:1.2px;color:#79877d}.status-dot{display:inline-block;width:5px;height:5px;background:#748f65;border-radius:50%;margin-right:6px}[hidden]{display:none!important}.trial-top{display:flex;justify-content:space-between;align-items:center}.trial-top .eyebrow{margin-bottom:10px}.progress{height:3px;background:#dbe3d9;margin-top:12px;overflow:hidden}.progress i{height:100%;background:var(--teal);display:block;width:0}.trial-meta{display:flex;justify-content:space-between;margin:12px 0 20px;font-size:11px;color:#687b70}.experiment{display:grid;grid-template-columns:1fr 220px;gap:25px;max-width:800px;margin:auto}.arena-card,.control-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:20px}.arena-card{background:#f0f2ec}#arena{height:clamp(210px,40dvh,390px);position:relative;margin:14px 0}.track{position:absolute;top:0;bottom:0;width:1px;background:#d9e0d4}.track.left{left:30%}.track.right{left:70%}.bar{position:absolute;width:30px;height:60px;transform:translate(-50%,-50%);border-radius:3px;top:50%}#reference{left:30%}#controlled{left:70%}#pad{height:clamp(210px,40dvh,390px);position:relative;margin:14px 0;touch-action:none;user-select:none;-webkit-user-select:none;cursor:ns-resize;border-radius:8px;background:#eaf0ed;border:1px solid #d2ded7;overflow:hidden}#pad.active{background:#e0ebe5}.pad-up,.pad-down{position:absolute;left:0;right:0;text-align:center;font-size:24px;color:#587869;pointer-events:none}.pad-up{top:14px}.pad-down{bottom:14px}.pad-up small,.pad-down small{display:block;font-size:8px;letter-spacing:1px;margin:5px 0;color:#739084}.pad-center{position:absolute;top:50%;width:100%;border-top:1px dashed #8aa898;pointer-events:none}.pad-center span{position:absolute;top:5px;left:8px;font-size:8px;letter-spacing:1px;color:#7c9989}#inputIndicator{position:absolute;top:50%;left:calc(50% - 15px);width:30px;height:7px;background:var(--teal);border-radius:5px;transform:translateY(-50%);pointer-events:none}.pad-caption{text-align:center;font-size:9px;color:#6c8275}.trial-hint{text-align:center;font-size:12px;color:#77897c;margin-top:20px}body.running{overflow:hidden;overscroll-behavior:none;user-select:none;-webkit-user-select:none;touch-action:none}body.running header{height:65px}body.running main{padding-top:25px}body.running footer{display:none}.result{padding:55px 0;text-align:center}.result .eyebrow{justify-content:center}.result .lead{margin:0 auto 35px}.result .quiet{display:block;margin:18px auto}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:15px;margin:28px 0}.stat{padding:20px;background:#eaf0e8;border:1px solid #dbe3d7;border-radius:8px}.stat strong{display:block;font-weight:550;font-size:26px;margin-bottom:5px}.stat small{font-size:10px;letter-spacing:.7px}.chart-card{background:#fff;padding:24px;border:1px solid var(--line);border-radius:10px;margin:18px 0}.chart-card canvas{display:block;width:100%;height:230px;margin-top:15px}.chart-card select{max-width:300px}.tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);padding-bottom:14px;margin:25px 0}.selected{background:#dfe9dd}.settings-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px 24px}.analysis-controls{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}dialog{border:1px solid var(--line);border-radius:14px;padding:30px;max-width:460px;color:inherit;background:#f5f6f2}dialog::backdrop{background:#19372d66}dialog p{font-size:14px;line-height:1.7;color:var(--muted)}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#203d33;color:white;padding:12px 20px;border-radius:7px;font-size:13px;display:none;z-index:10;max-width:90vw}
@media(min-width:1500px){main{padding-top:65px}}@media(max-width:1239px){main{padding-left:40px;padding-right:40px}}@media(max-width:760px){header{height:70px;padding:0 22px}.brand{font-size:12px;gap:10px}.brand-sub{display:none}header .quiet{font-size:10px;padding:8px}main{padding:30px 22px}.intro-grid{grid-template-columns:1fr;gap:12px}h1{letter-spacing:-1.8px;font-size:42px}.lead{font-size:15px}.eyebrow{font-size:9px;gap:12px;margin-bottom:22px}.steps{gap:18px;margin:24px 0}.preview-card{padding:20px}.demo{height:160px}.join{grid-template-columns:1fr;gap:20px;margin-top:25px;padding-top:22px}.start-wrap{max-width:none}#participant{max-width:none}footer{padding:18px 22px;font-size:7px}footer span:last-child{display:none}.experiment{grid-template-columns:minmax(0,1fr) 105px;gap:10px}.arena-card,.control-card{padding:12px 10px}.card-top{font-size:8px;letter-spacing:.5px}.experiment .card-top span{display:none}.control-card .card-top{font-size:7px}.arena-labels{font-size:9px;gap:5px}.arena-labels .dot{margin-right:3px}.pad-caption{font-size:8px;line-height:1.4}.trial-hint{font-size:10px;line-height:1.6;margin-top:14px}.bar{width:23px;height:48px}.trial-top h2{font-size:23px}.trial-top .eyebrow{font-size:8px}.trial-top .quiet{padding:8px}.trial-meta{font-size:10px}body.running main{padding-top:18px}body.running header{height:52px}#arena,#pad{height:clamp(180px,42dvh,370px)}.settings-grid{grid-template-columns:repeat(2,1fr);gap:12px}.analysis-controls{grid-template-columns:repeat(2,1fr);gap:10px}.tabs{flex-wrap:wrap}.tabs button{font-size:11px;padding:10px}.chart-card{padding:15px}.chart-card .card-top{flex-wrap:wrap}.stats{gap:8px}.stat{padding:14px}.stat strong{font-size:23px}.actions button{font-size:11px}.result{padding:35px 0}.result h1{font-size:38px}}@media(max-height:600px){body.running header{display:none}body.running main{padding-top:10px}#arena,#pad{height:40dvh}.trial-hint{margin:8px 0}.trial-top h2{font-size:20px}.trial-top .eyebrow{margin-bottom:5px}}