:root{--bg:#f5f7fb;--panel:#fff;--soft:#f0f3fa;--tint:#eaf0ff;--line:#e3e8f2;--line-2:#cfd7e6;--ink:#0d1433;--ink-2:#434b66;--ink-3:#4a5270;--ink-4:#5b6580;--blue:#3d63ff;--blue-2:#2c4fe6;--blue-ink:#1f3cc4;--link:#2c4fe6;--coral:#f4544b;--coral-2:#e2433a;--navy:#0a1030;--navy-2:#121a45;--green:#16a34a;--amber:#f59e0b;--amber-ink:#a35a00;--green-bg:#e7f7ee;--warn-bg:#fff6e5;--warn:#8a5a00;--sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--r:12px;--r-lg:20px;--side:252px;--shadow:0 1px 2px #0d143308,0 8px 24px -12px #0d14331f;font-family:var(--sans);color:var(--ink);background:var(--bg);font-synthesis:none;-webkit-font-smoothing:antialiased;font-feature-settings:"cv11","ss01"}
*{box-sizing:border-box}[hidden]{display:none!important}
.skip-link{position:fixed;top:8px;left:8px;z-index:9999;padding:12px 18px;border-radius:10px;background:var(--panel);color:var(--ink);font-weight:600;text-decoration:none;box-shadow:0 12px 32px -12px #0d143366;transform:translateY(-160%);transition:transform .16s cubic-bezier(.2,0,0,1)}
.skip-link:focus-visible{transform:none;outline:3px solid #3d63ff;outline-offset:2px}
main:focus{outline:none}
html{scroll-padding-top:96px;-webkit-tap-highlight-color:transparent}
@media(max-width:760px){html{scroll-padding-top:86px}}
html{scroll-behavior:smooth}
body{margin:0;font-size:14px;line-height:1.5;background:var(--bg);min-height:100vh}
button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:progress;opacity:.55}
::selection{background:#c9d5ff}
a{color:var(--link)}

/* Brand */
.logo{color:var(--ink);text-decoration:none;display:inline-flex;align-items:center;gap:10px;line-height:1}
.logo-mark{width:40px;height:40px;flex-shrink:0;display:block;border-radius:10px}
.logo-text{display:grid;gap:3px}
.logo-text b{font-size:21px;letter-spacing:-.035em;font-weight:700}
.logo-text small{font-size:9px;font-weight:500;color:var(--ink-3);display:flex;align-items:center;gap:5px}
.by-logo{height:7px;width:auto;display:block;opacity:.7}

/* Shell */
aside{position:fixed;inset:0 auto 0 0;width:var(--side);background:var(--panel);padding:24px 16px 20px;display:flex;flex-direction:column;z-index:3}
aside .logo{padding:0 8px}
aside .eyebrow{margin:10px 10px 32px}
aside nav{display:grid;gap:4px}
aside nav button{border:0;background:none;color:var(--ink-2);padding:11px 12px;text-align:left;border-radius:10px;display:flex;align-items:center;gap:12px;font-size:14px;font-weight:500;transition:background .15s,color .15s}
aside nav button i{font-style:normal;width:20px;text-align:center;color:var(--ink-4);font-size:14px}
aside nav button:hover{background:var(--soft);color:var(--ink)}
aside nav button.selected{background:var(--tint);color:var(--blue-ink);font-weight:600}
aside nav button.selected i{color:var(--blue)}
.side-bottom{margin-top:auto;font-size:12px;padding:16px;background:var(--soft);border-radius:var(--r)}
.side-status{display:flex;align-items:center;font-weight:600;color:var(--ink)}
.side-bottom p{color:var(--ink-3);margin:6px 0 12px}
.side-bottom small{font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-4)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--green);margin-right:8px;box-shadow:0 0 0 3px #16a34a26;flex-shrink:0}
main{margin-left:var(--side);padding:0 40px 48px;max-width:calc(1600px + var(--side))}
main>header{height:68px;display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:13px;color:var(--ink-3)}
.breadcrumb span{margin:0 10px;color:var(--ink-4)}.breadcrumb #breadcrumb-view{margin:0;color:var(--ink);font-weight:600}
.live{display:flex;align-items:center;color:var(--ink-2);background:var(--panel);box-shadow:var(--shadow);padding:7px 12px;border-radius:100px;font-weight:500;font-size:12px}

/* Type */
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--blue)}
aside .eyebrow{color:var(--ink-3);font-weight:500}
h1{font-size:clamp(28px,2.8vw,40px);line-height:1.12;letter-spacing:-.03em;font-weight:700;margin:10px 0;text-wrap:balance}
h2{font-size:20px;font-weight:700;letter-spacing:-.02em;margin:0 0 6px;line-height:1.25}
h3{font-weight:600;letter-spacing:-.01em}
p{color:var(--ink-2);line-height:1.6;margin:0}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}

/* Controls */
select,input,textarea{border:1px solid var(--line-2);background:var(--panel);padding:12px 14px;border-radius:10px;color:var(--ink);transition:border-color .15s,box-shadow .15s}
select:hover,input:hover,textarea:hover{border-color:var(--ink-4)}
select:focus,input:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px #3d63ff26;outline:none}
input::placeholder,textarea::placeholder{color:var(--ink-4)}
label{display:grid;gap:7px;font-size:13px;font-weight:500;color:var(--ink-2)}
input[type=checkbox],input[type=radio]{accent-color:var(--blue)}
.store-label select{min-width:230px;max-width:280px}
.primary,.secondary,.cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:600;font-size:14px;line-height:1.2;text-decoration:none;white-space:nowrap;transition:background .15s,border-color .15s,color .15s,box-shadow .15s,transform .1s}
.primary{background:var(--blue);color:#fff;border:1px solid var(--blue);padding:12px 20px}
.primary:hover{background:var(--blue-2)}
.cta{background:var(--coral);color:#fff;border:0;padding:15px 26px;font-size:15px;box-shadow:0 8px 20px -8px #f4544bb3}
.cta:hover{background:var(--coral-2)}
.cta.small{padding:10px 18px;font-size:14px;box-shadow:none}
.primary:active,.secondary:active,.cta:active{transform:translateY(1px)}
.secondary{padding:11px 17px;background:var(--soft);border:0;color:var(--ink)}
.secondary:hover{background:var(--tint);color:var(--blue-ink)}
button:focus-visible,a:focus-visible,tr:focus-visible,summary:focus-visible{outline:3px solid #3d63ff66;outline-offset:2px}

/* Page scaffolding */
.page-heading{display:flex;align-items:flex-end;justify-content:space-between;margin:36px 0 24px;gap:24px}
.page-heading p{max-width:640px;font-size:15px}
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin:36px 0 16px}
.section-heading p{font-size:13px;color:var(--ink-3)}
.notice{background:var(--tint);display:flex;align-items:center;gap:14px;padding:16px 20px;border-radius:var(--r);color:var(--ink-2)}
.notice>span:first-child{width:10px;height:10px;border-radius:50%;background:var(--green);font-size:0;box-shadow:0 0 0 4px #16a34a26}
.notice div{display:flex;gap:12px;font-size:14px;flex-wrap:wrap}.notice strong{color:var(--ink)}
.notice .tag{margin-left:auto;white-space:nowrap}
.tag{font-size:11px;font-weight:600;background:var(--panel);padding:5px 10px;border-radius:100px;color:var(--blue-ink)}

/* Operator metrics */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:20px 0 8px}
.metric{background:var(--panel);border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--shadow)}
.metric .label{font-size:13px;font-weight:500;color:var(--ink-3)}
.metric strong{display:block;font-size:32px;font-weight:700;letter-spacing:-.03em;margin:10px 0 6px;font-variant-numeric:tabular-nums;line-height:1.1}
.metric small{font-size:12px;color:var(--ink-3)}

/* Tables */
.table-wrap{overflow:auto;border-radius:var(--r-lg);background:var(--panel);box-shadow:var(--shadow)}
table{border-collapse:collapse;width:100%;white-space:nowrap}
th{text-align:left;font-size:12px;font-weight:600;color:var(--ink-3);background:var(--soft);padding:13px 20px}
td{padding:16px 20px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-2);font-variant-numeric:tabular-nums}
td:first-child{color:var(--ink);font-weight:500}
tr[data-session],tr[data-product]{cursor:pointer;transition:background .12s}
tr[data-session]:hover,tr[data-product]:hover{background:#f7f9ff}
.status{padding:4px 10px;background:var(--soft);color:var(--ink-3);border-radius:100px;font-size:12px;font-weight:600}
.status.active{background:var(--tint);color:var(--blue-ink)}
.status.converted{background:var(--green-bg);color:#11703a}
.footnote{font-size:12px;color:var(--ink-3);margin-top:18px}
.empty{text-align:center;padding:56px 24px;color:var(--ink-3);background:var(--panel);border-radius:var(--r-lg)}

/* Sign-in (operator) */
body:has(#login:not([hidden])) aside,body:has(#login:not([hidden])) main>header{display:none}
body:has(#login:not([hidden])) main{margin-left:0;max-width:none}
body:has(#login:not([hidden])):not(.merchant-app){background:linear-gradient(180deg,#e3eaff 0,var(--bg) 520px)}
#login{max-width:520px;margin:72px auto;padding:40px;background:var(--panel);border-radius:24px;box-shadow:0 30px 60px -30px #0d143333}
#login h1{font-size:34px}
#login form{display:grid;gap:14px;margin:26px 0 18px}
.muted{font-size:13px;color:var(--ink-3)}
.operator-access{margin-top:28px;border-top:1px solid var(--line);padding-top:18px;color:var(--ink-3);font-size:13px}
.operator-access summary{cursor:pointer;font-weight:600;color:var(--ink-2)}

/* Toast + dialogs */
#error{position:fixed;bottom:24px;right:24px;max-width:420px;background:var(--navy);color:#fff;padding:14px 20px;border-radius:var(--r);z-index:10;font-size:14px;box-shadow:0 20px 40px #0a103040;border-left:4px solid var(--coral)}
dialog{border:0;border-radius:24px;padding:30px;width:min(800px,94vw);max-height:88vh;color:var(--ink);background:var(--panel);box-shadow:0 40px 90px #0a103050}
dialog::backdrop{background:#0a10308c}
/* No backdrop blur: re-blurring the page behind on every scroll frame caused visible stutter. */
dialog{overscroll-behavior:contain;scrollbar-gutter:stable}
html:has(dialog[open]),html.modal-open{overflow:hidden}
body:has(dialog[open]) .dot{animation:none!important}
.dialog-head{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);position:sticky;top:-30px;z-index:5;background:var(--panel);margin:-30px -30px 18px;padding:26px 30px 16px}
.dialog-head h2{margin-top:8px;font-size:24px}
.dialog-head button{border:0;background:var(--soft);font-size:14px;width:36px;height:36px;border-radius:50%;flex-shrink:0}
.dialog-head button:hover{background:var(--tint)}

/* Session timeline */
.timeline{margin-top:24px}
.event{display:grid;grid-template-columns:70px 1fr;gap:16px;padding:0 0 20px}
.event time{font-size:12px;color:var(--ink-3);padding-top:2px;font-variant-numeric:tabular-nums}
.event .event-body{border-left:2px solid var(--tint);padding-left:18px;position:relative}
.event .event-body:before{content:"";position:absolute;left:-6px;top:5px;width:10px;height:10px;border-radius:50%;background:var(--panel);border:2px solid var(--blue)}
.event strong{font-size:14px;font-weight:600}
.event p{font-size:13px;margin-top:4px}
.event details{font-size:12px;margin-top:8px;color:var(--ink-3)}
pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:11px;background:var(--soft);padding:12px;border-radius:10px}
.store-card{background:var(--panel);padding:26px;border-radius:var(--r-lg);box-shadow:var(--shadow)}
.store-card+.store-card{margin-top:16px}
.config{display:grid;gap:14px;margin:18px 0}.config label{display:flex;align-items:center;gap:12px}.config input[type=number]{width:90px}
.detail-stats{display:flex;gap:28px;flex-wrap:wrap;font-size:13px;color:var(--ink-3)}
.detail-stats strong{display:block;font-size:24px;font-weight:700;letter-spacing:-.02em;margin-bottom:2px;color:var(--ink);font-variant-numeric:tabular-nums}
.event-name{max-width:260px;overflow:hidden;text-overflow:ellipsis}
#review-form{display:grid;gap:12px;margin-top:18px}
#session-detail .store-card{margin:18px 0;padding:20px}#session-detail li{margin:8px 0;line-height:1.5}#session-detail small{color:var(--ink-3)}
#pilot-settings,#tester-create,#assignment-preview{display:grid;gap:14px;margin:18px 0}
#pilot-settings label:has(input[type=checkbox]){display:flex;align-items:center;gap:10px}
#pilot-settings input[type=checkbox]{width:16px;height:16px;margin:0}
#pilot-settings textarea{min-height:76px;resize:vertical}
#pilot-settings blockquote{margin:0;padding:14px 18px;border-radius:10px;color:var(--ink-2);background:var(--tint)}

/* Participant study / tester pages */
body:has(main.study){background:linear-gradient(180deg,#e3eaff 0,var(--bg) 420px)}
main.study{margin:0 auto;padding:64px 24px;max-width:680px}
main.study h1{font-size:clamp(30px,5vw,42px)}
main.study>p{margin:16px 0;font-size:15px}
main.study #task{font-size:18px;color:var(--ink);padding:20px 22px;background:var(--panel);border-radius:var(--r-lg);box-shadow:var(--shadow)}
main.study #storefront{display:inline-flex;background:var(--coral);color:#fff;text-decoration:none;padding:14px 22px;border-radius:10px;font-weight:600}
main.study #storefront:after{content:"↗";margin-left:8px}
main.study form,#trial-form,#trial-link-form{display:grid;gap:8px;margin:28px 0}
main.study form{background:var(--panel);padding:24px;border-radius:var(--r-lg);box-shadow:var(--shadow)}
main.study form h2{margin-bottom:8px}
main.study label{display:flex;gap:12px;align-items:center;border:1px solid transparent;background:var(--soft);border-radius:10px;padding:13px 16px;font-size:14px;color:var(--ink);cursor:pointer;transition:border-color .15s,background .15s}
main.study label:hover{border-color:var(--ink-4)}
main.study label:has(input:checked){border-color:var(--blue);background:var(--tint)}
main.study .primary{justify-self:start;margin-top:10px}

@media(max-width:1100px){:root{--side:212px}main{padding:0 24px 40px}.metrics{grid-template-columns:repeat(2,1fr)}.page-heading{align-items:flex-start;flex-direction:column}}
@media(max-width:700px){aside{position:sticky;top:0;width:100%;inset:auto;padding:12px 16px 0;box-shadow:0 6px 20px -14px #0d143340}aside .logo{padding:0}aside .eyebrow,.side-bottom{display:none}aside nav{display:flex;margin:10px -16px 0;padding:0 16px 10px;gap:4px;overflow-x:auto;scrollbar-width:none}aside nav button{flex-shrink:0;font-size:13px;padding:8px 12px;gap:6px}main{margin:0;padding:0 16px 32px}main>header{height:56px;font-size:12px}.breadcrumb{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.live{padding:5px 10px;font-size:11px}.metrics{gap:10px}.metric{padding:16px}.metric strong{font-size:26px}.page-heading{margin-top:24px}h1{font-size:28px}#login{margin:24px 16px;padding:24px}#error{left:16px;right:16px;bottom:16px}dialog{padding:20px}.dialog-head{top:-20px;margin:-20px -20px 16px;padding:18px 20px 14px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important}html{scroll-behavior:auto}.hv-stage,.hv-pill,.hv-store,.hv-orb,.statement .sw{transform:none!important;filter:none!important}a,button,summary,input,select,textarea{transition-duration:120ms!important}}
#login>.logo+.eyebrow{margin-top:28px}
aside .logo+nav{margin-top:32px}
/* Form controls v2: one height, one border, custom chevrons, checks and ranges */
select,input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]),textarea{font-size:14px;line-height:1.4;border:1px solid #d6dce8;border-radius:10px;background-color:var(--panel);color:var(--ink);box-shadow:0 1px 2px #0d14330a}
select,input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]){min-height:40px;padding:9px 12px}
textarea{padding:10px 12px;line-height:1.5}
select{appearance:none;-webkit-appearance:none;padding-right:38px;cursor:pointer;text-overflow:ellipsis;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%236d7590' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:16px}
select:hover,input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]):hover,textarea:hover{border-color:#b9c2d6}
select:focus-visible,input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]):focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #3d63ff29;outline:none}
select:disabled,input:disabled,textarea:disabled{background-color:var(--soft);color:var(--ink-4);cursor:not-allowed;box-shadow:none}
input[type=search]{padding-left:38px!important;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%239aa2b8' stroke-width='1.7' stroke-linecap='round'%3E%3Ccircle cx='7' cy='7' r='4.5'/%3E%3Cpath d='m10.5 10.5 3 3'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:left 12px center;background-size:16px}
input[type=search]::-webkit-search-cancel-button{-webkit-appearance:none;width:14px;height:14px;cursor:pointer;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%239aa2b8' stroke-width='1.8' stroke-linecap='round'%3E%3Cpath d='m4 4 8 8M12 4l-8 8'/%3E%3C/svg%3E") center/14px no-repeat}
input[type=number]{font-variant-numeric:tabular-nums}
input[type=checkbox]:not([role=switch]),input[type=radio]{appearance:none;-webkit-appearance:none;width:18px;height:18px;margin:0;flex-shrink:0;border:1.5px solid #c4ccdb;background:#fff center/12px no-repeat;cursor:pointer;transition:background-color .12s,border-color .12s,box-shadow .12s;vertical-align:middle}
input[type=checkbox]:not([role=switch]){border-radius:5px}
input[type=radio]{border-radius:50%}
input[type=checkbox]:not([role=switch]):hover,input[type=radio]:hover{border-color:var(--blue)}
input[type=checkbox]:not([role=switch]):checked{background-color:var(--blue);border-color:var(--blue);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23fff' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m3.5 8.5 3 3 6-7'/%3E%3C/svg%3E")}
input[type=radio]:checked{border:5px solid var(--blue)}
input[type=checkbox]:not([role=switch]):focus-visible,input[type=radio]:focus-visible{outline:none;box-shadow:0 0 0 3px #3d63ff33}
input[type=checkbox]:disabled,input[type=radio]:disabled{background-color:var(--soft);border-color:var(--line);cursor:not-allowed}
input[type=range]{-webkit-appearance:none;appearance:none;height:20px;background:transparent;cursor:pointer;padding:0;border:0}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:100px;background:linear-gradient(90deg,var(--blue) var(--fill,50%),#e3e8f2 var(--fill,50%))}
input[type=range]::-moz-range-track{height:6px;border-radius:100px;background:#e3e8f2}
input[type=range]::-moz-range-progress{height:6px;border-radius:100px;background:var(--blue)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;margin-top:-6px;border-radius:50%;background:#fff;border:2px solid var(--blue);box-shadow:0 1px 3px #0d143333}
input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid var(--blue)}
input[type=range]:focus-visible{outline:none}input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 4px #3d63ff33}
input[type=color]{-webkit-appearance:none;appearance:none;width:40px;height:40px;padding:3px;border:1px solid #d6dce8;border-radius:10px;background:#fff;cursor:pointer}
input[type=color]::-webkit-color-swatch-wrapper{padding:0}input[type=color]::-webkit-color-swatch{border:0;border-radius:7px}input[type=color]::-moz-color-swatch{border:0;border-radius:7px}
label:has(>input[type=checkbox]:not([role=switch])),label:has(>input[type=radio]){cursor:pointer}
input[type=checkbox]:not([role=switch]),input[type=radio]{padding:0;min-height:0;box-shadow:none}