.sync-banner{margin:0 auto;padding:12px 28px;font-size:13px;line-height:1.6;border-bottom:1px solid #dce4f0;background:#edf2fc;color:#264eb3}.sync-banner[data-tone=warning]{background:#fff4e5;color:#84501e}.sync-banner[data-tone=success]{background:#edf7f2;color:#266348}.study-nav{display:flex;gap:18px;font-size:13px;margin-left:auto}.study-nav a{color:var(--muted);text-decoration:none}.study-nav a:hover{color:var(--accent)}.admin-main{max-width:1280px!important;margin:auto;padding:32px 28px!important}.admin-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:18px 0 30px}.admin-heading h1{font-size:32px;margin-bottom:8px}.admin-heading p{margin:0;color:var(--muted)}.admin-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.admin-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:24px 0}.admin-stat{border:1px solid var(--line);background:white;padding:22px 24px;border-radius:14px}.admin-stat span{color:var(--muted);font-size:13px}.admin-stat strong{display:block;font-size:32px;margin-top:8px}.admin-toolbar{display:flex;align-items:end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin:26px 0 18px}.admin-filters{display:flex;gap:12px;flex-wrap:wrap}.admin-filters label{font-size:12px;color:var(--muted)}.admin-filters select{display:block;margin-top:6px;min-width:160px;padding:10px;border:1px solid var(--line);border-radius:8px;background:white}.table-wrap{overflow-x:auto;background:white;border:1px solid var(--line);border-radius:14px}table{width:100%;border-collapse:collapse;white-space:nowrap;font-size:13px;text-align:left}th{color:var(--muted);background:#f8faff;font-weight:500}th,td{padding:16px;border-bottom:1px solid #edf0f6}tbody tr:last-child td{border-bottom:0}.pill{display:inline-block;padding:5px 9px;border-radius:20px;background:#edf2fc;color:#3868d9;font-size:12px}.pill.complete{background:#e9f5ee;color:#286549}.empty{text-align:center;padding:64px 20px;color:var(--muted)}.admin-login{max-width:440px;margin:60px auto;background:white;border:1px solid var(--line);padding:32px;border-radius:18px}.admin-login h1{font-size:28px}.admin-login p{font-size:14px;color:var(--muted);line-height:1.8}.admin-message{min-height:24px;font-size:13px;color:var(--warning);margin:16px 0}.admin-pager{display:flex;gap:18px;align-items:center;justify-content:flex-end;margin-top:20px;font-size:13px}.admin-detail{width:min(900px,94vw);border:1px solid var(--line);border-radius:14px;padding:24px;background:white}.admin-detail::backdrop{background:#14233b99}.admin-detail pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:60vh;overflow:auto;background:#f6f8fc;padding:18px;font-size:12px;line-height:1.6}.admin-note{font-size:12px;color:var(--muted);line-height:1.8;margin:18px 0}.admin-login input{width:100%;padding:12px;border:1px solid var(--line);border-radius:8px}.admin-login .button{margin-top:16px;width:100%}#admin-loading{text-align:center;padding:90px 20px;color:var(--muted)}@media(max-width:760px){.study-nav{gap:10px;font-size:11px}.sync-banner{padding:10px 14px;font-size:12px}.admin-main{padding:20px 14px!important}.admin-heading{align-items:start;flex-direction:column}.admin-heading h1{font-size:28px}.admin-stats{gap:8px}.admin-stat{padding:16px 12px}.admin-stat strong{font-size:26px}.admin-stat span{font-size:11px}.admin-filters{width:100%}.admin-filters label{flex:1}.admin-filters select{min-width:0;width:100%}.admin-login{margin:24px auto;padding:24px}}
.enrollment-id{max-width:1180px;margin:0 auto;padding:8px 36px;font-size:12px;color:var(--muted);overflow-wrap:anywhere}body[data-enrollment=true] .study-nav,body[data-enrollment=true] #legacy-progress,body[data-enrollment=true] #partial-download{display:none!important}.enrollment-welcome h1{margin-bottom:24px}.enrollment-welcome .notice{margin:24px 0}.background-card{max-width:850px}.background-card h1{font-size:28px}.background-card fieldset{border:0;border-bottom:1px solid var(--line);padding:0 0 28px;margin:28px 0}.background-card legend{font-size:17px;font-weight:600;line-height:1.6;margin-bottom:10px}.background-options{display:grid;gap:9px}.background-option{display:flex;align-items:flex-start;gap:12px;padding:13px 16px;border:1px solid var(--line);border-radius:10px;background:#f8faff;line-height:1.7;font-size:14px}.background-option input{margin-top:6px;flex-shrink:0;accent-color:var(--accent)}.background-option:has(input:checked){border-color:var(--accent);background:#edf2ff}.quota-details{margin:20px 0}.quota-details summary{cursor:pointer;font-size:14px;padding:12px 0}@media(max-width:760px){.enrollment-id{padding:8px 18px}.background-card h1{font-size:23px}.background-option{padding:11px 12px}}
body[data-screen=practice] .site-header,body[data-screen=practice] #sync-banner,body[data-screen=practice] #enrollment-id,body[data-screen=practice] #legacy-progress,body[data-screen=practice] .storage-warning{display:none!important}body[data-screen=practice] #app{padding-top:24px}
.practice-navigation{display:flex;justify-content:flex-start;margin-bottom:18px}.practice-back{padding:7px 10px;font-size:14px}.practice-screen .response-panel{margin-top:20px}
.background-card legend{font-size:20px}
.background-card .rating-hint{font-size:18px;line-height:1.8;margin-bottom:14px}
.background-card .background-option{font-size:17px;line-height:1.7}
.background-card .background-option input{width:18px;height:18px;margin-top:5px}
.background-card .field>span,.background-card .field input{font-size:17px}
body:has(> #app)>.site-header,
body:has(> #app)>#sync-banner,
body:has(> #app)>#enrollment-id,
body:has(> #app)>#legacy-progress{display:none!important}

/* Keep the comparison flow in one viewport; the background form keeps its layout. */
body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]){font-size:19px}
body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]) #app{height:100dvh;min-height:0;max-width:1440px;padding:16px 28px;display:flex;flex-direction:column;justify-content:center}
body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]) .site-footer{display:none}
body:is([data-screen=tutorial],[data-screen=intro],[data-screen=break],[data-screen=microbreak],[data-screen=done]) .center-card{width:100%;max-width:960px;margin:0 auto;padding:28px 36px}
body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]) h1{font-size:clamp(28px,2.6vw,38px);line-height:1.35;letter-spacing:-.5px;margin:0 0 14px}
body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]) p{line-height:1.65;margin-bottom:16px}
body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]) .eyebrow{font-size:14px;letter-spacing:1px;margin-bottom:12px}
body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]) .button{font-size:19px;min-height:46px;padding:10px 20px}
body[data-screen=tutorial] .tutorial-steps{display:grid;grid-template-columns:1fr 1fr;gap:20px 40px;padding-left:24px;margin:22px 0 26px}
body[data-screen=tutorial] .tutorial-steps li{padding:0 0 0 3px}
body[data-screen=tutorial] .tutorial-steps strong{font-size:20px}
body[data-screen=tutorial] .tutorial-steps p{font-size:18px;line-height:1.65;margin:7px 0 0}
.dimension-intro .dimension-guide{margin:20px 0;padding:20px 24px}
.dimension-intro .definition-large{font-size:21px;line-height:1.75;background:none;padding:0;margin:0}
.dimension-intro h2{font-size:25px;margin:18px 0 0}
.completion-card #submission-state{padding:16px 20px;background:var(--soft);border-radius:10px;font-size:20px;line-height:1.7}
.result-backup{margin:22px 0 0;font-size:17px}
.result-backup summary{cursor:pointer;color:var(--muted)}
.result-backup .actions{margin-top:12px}
body[data-screen=trial] #app{display:grid;grid-template-rows:auto 4px minmax(0,1fr);gap:10px;justify-content:normal}
body[data-screen=trial] .progress-meta{font-size:16px;line-height:1.5;margin:0}
.trial-screen{display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:12px;min-height:0}
body[data-screen=trial] .trial-heading{margin:0;display:block}
body[data-screen=trial] .trial-heading h1{font-size:30px;margin:0 0 6px}
body:is([data-screen=trial],[data-screen=practice]) .definition{font-size:18px;line-height:1.6;max-width:none;margin:0}
.comparison-area{position:relative;min-height:0}
body:is([data-screen=trial],[data-screen=practice]) .image-grid{height:100%;min-height:0;gap:18px}
body:is([data-screen=trial],[data-screen=practice]) .image-card{display:flex;flex-direction:column;min-height:0}
body:is([data-screen=trial],[data-screen=practice]) .image-card figcaption{padding:5px 14px;flex:none;min-height:30px}
body:is([data-screen=trial],[data-screen=practice]) .image-card figcaption strong{font-size:16px}
body:is([data-screen=trial],[data-screen=practice]) .image-stage{height:auto;min-height:0;flex:1;aspect-ratio:auto;padding:4px}
body:is([data-screen=trial],[data-screen=practice]) .stimulus{display:block;width:100%;height:100%;min-height:0;object-fit:contain}
body[data-screen=trial] .loading-status{position:absolute;bottom:8px;left:50%;transform:translateX(-50%);max-width:95%;margin:0;padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:8px;font-size:16px;line-height:1.5}
body:is([data-screen=trial],[data-screen=practice]) .response-panel{margin:0}
body:is([data-screen=trial],[data-screen=practice]) .choices{gap:12px}
body:is([data-screen=trial],[data-screen=practice]) .choice{font-size:21px;line-height:1.45;min-height:60px;padding:12px 14px}
body[data-screen=trial] .trial-actions{margin:10px 0 0;gap:10px}
body[data-screen=trial] .trial-actions .button-quiet{font-size:17px}
body[data-screen=practice] .practice-screen{height:100%;min-height:0;display:grid;grid-template-rows:auto auto auto minmax(0,1fr) auto;gap:12px}
.practice-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
body[data-screen=practice] .practice-navigation,body[data-screen=practice] .practice-top .eyebrow{margin:0}
body[data-screen=practice] .practice-back{font-size:17px;padding:6px 10px;min-height:38px}
body[data-screen=practice] .practice-screen h1{font-size:30px;margin:0}
@media(max-width:760px){
  body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]){font-size:18px}
  body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]) #app{padding:12px}
  body:is([data-screen=tutorial],[data-screen=intro],[data-screen=break],[data-screen=microbreak],[data-screen=done]) .center-card{padding:22px 20px}
  body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]) h1{font-size:28px;margin-bottom:12px}
  body:is([data-screen=tutorial],[data-screen=practice],[data-screen=intro],[data-screen=trial],[data-screen=break],[data-screen=microbreak],[data-screen=done]) .button{font-size:18px;padding:9px 14px;min-height:44px}
  body[data-screen=tutorial] .tutorial-steps{grid-template-columns:1fr;gap:14px;padding-left:22px;margin:16px 0 22px}
  body[data-screen=tutorial] .tutorial-steps strong{font-size:19px}
  body[data-screen=tutorial] .tutorial-steps p{font-size:17px;line-height:1.55;margin-top:5px}
  .dimension-intro .dimension-guide{padding:16px;margin:16px 0}
  .dimension-intro .definition-large{font-size:19px;line-height:1.65}
  .dimension-intro h2{font-size:22px}
  body[data-screen=trial] #app{gap:8px}
  body[data-screen=trial] .progress-meta{font-size:14px;gap:8px}
  .trial-screen,body[data-screen=practice] .practice-screen{gap:8px}
  body[data-screen=trial] .trial-heading h1,body[data-screen=practice] .practice-screen h1{font-size:25px;line-height:1.35;margin:0 0 4px}
  body:is([data-screen=trial],[data-screen=practice]) .definition{font-size:16px;line-height:1.55}
  body:is([data-screen=trial],[data-screen=practice]) .image-grid{gap:8px}
  body:is([data-screen=trial],[data-screen=practice]) .image-card figcaption{padding:4px 8px;min-height:27px}
  body:is([data-screen=trial],[data-screen=practice]) .image-card figcaption strong{font-size:15px}
  body:is([data-screen=trial],[data-screen=practice]) .choices{gap:7px}
  body:is([data-screen=trial],[data-screen=practice]) .choice{font-size:18px;padding:10px 6px;min-height:66px}
  body[data-screen=practice] .practice-top .eyebrow{font-size:14px}
  body[data-screen=practice] .practice-back{font-size:16px;min-height:36px;padding:5px 8px}
  .completion-card #submission-state{font-size:18px;padding:14px}
}
@media(max-height:700px){
  body[data-screen=tutorial] .center-card{padding:18px 22px}
  body[data-screen=tutorial] .eyebrow{display:none}
  body[data-screen=tutorial] .tutorial-steps{gap:10px 28px;margin:12px 0 18px}
  body[data-screen=tutorial] .tutorial-steps p{margin-top:4px}
}

body:has(#app>.enrollment-welcome) #app{height:100dvh;min-height:0;padding:20px;display:grid;place-items:center}
body:has(#app>.enrollment-welcome) .site-footer{display:none}
#app>.enrollment-welcome{width:100%;max-width:680px;margin:0;padding:52px 56px;text-align:center}
#app>.enrollment-welcome h1{font-size:42px;line-height:1.5;letter-spacing:-.7px;margin:0 0 36px}
#app>.enrollment-welcome .button{font-size:21px;min-height:54px}
#enrollment-error:empty{display:none}
.enrollment-welcome #enrollment-error{margin:18px 0 0}
body:has(#app>.enrollment-consent-card) #app{height:100dvh;min-height:0;padding:20px;display:grid;place-items:center}
body:has(#app>.enrollment-consent-card) .site-footer{display:none}
#app>.enrollment-consent-card{width:100%;max-width:820px;margin:0;padding:32px 40px}
.enrollment-consent-card h1{font-size:34px;line-height:1.35;letter-spacing:-.5px;margin:0 0 14px}
.enrollment-consent-card .consent-intro{font-size:19px;color:var(--muted);line-height:1.6;margin:0 0 24px}
.consent-details{display:grid;gap:16px}
.consent-details p{font-size:18px;line-height:1.65;margin:0}
.consent-details strong{font-weight:650}
.enrollment-consent-card .consent{font-size:18px;line-height:1.6;margin:24px 0 18px;gap:12px}
.enrollment-consent-card .consent input{width:19px;height:19px;flex-shrink:0;margin-top:5px}
.enrollment-consent-card .button{font-size:20px;min-height:50px}
.trial-progress-left{display:flex;align-items:center;gap:18px;min-width:0}
body[data-screen=trial] .practice-navigation{margin:0}
body[data-screen=trial] #previous-trial{font-size:17px;min-height:38px;padding:6px 10px;white-space:nowrap}
body[data-screen=trial] .progress-meta>span{white-space:nowrap}
body[data-screen=trial] .trial-heading{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
@media(max-width:760px){
  body:has(#app>.enrollment-welcome) #app{padding:16px}
  #app>.enrollment-welcome{padding:32px 22px}
  #app>.enrollment-welcome h1{font-size:30px;margin-bottom:28px}
  #app>.enrollment-welcome .button{font-size:20px}
  body:has(#app>.enrollment-consent-card) #app{padding:14px}
  #app>.enrollment-consent-card{padding:24px 22px}
  .enrollment-consent-card h1{font-size:28px;margin-bottom:12px}
  .enrollment-consent-card .consent-intro{font-size:18px;margin-bottom:18px}
  .consent-details{gap:14px}
  .consent-details p{font-size:17px;line-height:1.6}
  .enrollment-consent-card .consent{font-size:17px;margin:20px 0 16px}
  .enrollment-consent-card .button{font-size:19px;min-height:48px}
  .trial-progress-left{gap:6px;flex-wrap:wrap}
  body[data-screen=trial] #previous-trial{font-size:16px;min-height:36px;padding:5px 8px}
}
body:has(#app>.debug-select-card) #app{height:auto;min-height:100dvh;padding:20px;display:grid;grid-template-columns:minmax(0,1fr);place-items:center}
body:has(#app>.debug-select-card) .site-footer{display:none}
#app>.debug-select-card{width:100%;min-width:0;max-width:1120px;margin:0;padding:24px 28px;font-size:18px}
.debug-select-card h1{font-size:30px;letter-spacing:0;margin:0 0 10px}
.debug-select-card p{line-height:1.6;margin:0 0 16px}
.debug-fields{display:grid;grid-template-columns:1fr 1fr 2fr;gap:16px}
.debug-select-card .field{margin:0;min-width:0}
.debug-select-card .actions{margin-top:16px}
.debug-dimensions{width:100%;border-collapse:collapse;margin-top:20px;text-align:left;font-size:17px;line-height:1.5}
.debug-dimensions caption{text-align:left;font-size:20px;font-weight:650;margin-bottom:10px;color:var(--ink)}
.debug-dimensions th,.debug-dimensions td{border-bottom:1px solid var(--line);padding:9px 12px;vertical-align:top}
.debug-dimensions thead{background:var(--soft)}
.debug-dimensions th:first-child{white-space:nowrap}
.debug-dimensions td{color:var(--muted);white-space:normal;overflow-wrap:anywhere}
.debug-dimensions th{font-weight:600;color:var(--ink)}
@media(min-width:761px) and (max-height:720px){
  body:has(#app>.debug-select-card) #app{padding:12px}
  #app>.debug-select-card{padding:16px 24px}
  .debug-select-card h1{font-size:26px;line-height:1.25;margin-bottom:8px}
  .debug-select-card p{line-height:1.4;margin-bottom:10px}
  .debug-select-card select{min-height:40px;padding:8px 12px}
  .debug-select-card .actions{margin-top:10px}
  .debug-select-card .button{min-height:42px;padding:8px 16px}
  .debug-dimensions{margin-top:12px;font-size:16px;line-height:1.35}
  .debug-dimensions caption{font-size:18px;margin-bottom:6px}
  .debug-dimensions th,.debug-dimensions td{padding:6px 10px}
}
.debug-select-card .field>span{font-size:17px}
.debug-select-card select{font-size:17px}
.debug-select-card .button{font-size:18px;min-height:46px}
body[data-debug-preview=true] .progress-meta{flex-wrap:wrap;align-items:center}
body[data-debug-preview=true] #debug-choose{font-size:17px;min-height:38px;padding:6px 10px}
#debug-return{position:fixed;top:10px;left:16px;z-index:40;margin:0;min-height:38px;padding:6px 12px;font-size:17px;background:var(--paper);box-shadow:0 2px 8px #20395e0a}
#debug-return[hidden]{display:none}
body[data-debug-flow=true]:has(> #app) #app{padding-top:60px}
@media(max-width:760px){
  #app>.debug-select-card{padding:24px 20px}
  .debug-select-card h1{font-size:28px}
  .debug-fields{grid-template-columns:1fr 1fr;gap:14px}
  .debug-question-field{grid-column:1/-1}
  .debug-dimensions,.debug-dimensions caption,.debug-dimensions tbody{display:block;width:100%}
  .debug-dimensions thead{display:none}
  .debug-dimensions tr{display:grid;grid-template-columns:minmax(0,1fr);gap:4px;padding:12px 0;border-bottom:1px solid var(--line)}
  .debug-dimensions th,.debug-dimensions td{min-width:0;border:0;padding:0;white-space:normal;overflow-wrap:anywhere}
  .debug-dimensions td:first-of-type{font-weight:600;color:var(--ink)}
  .debug-select-card .button{padding:10px 12px}
  body[data-debug-preview=true] .trial-progress-left{gap:6px}
  body[data-debug-preview=true] #debug-choose{font-size:16px;min-height:36px;padding:5px 8px}
}