:root{--paper:#f5f4ed;--card:#fffefa;--ink:#23392f;--muted:#647168;--green:#244a3c;--green-hover:#193b2e;--line:#d9dfd3;--tint:#edf2e8;--gold:#a78044;--danger:#963e2e;--shadow:0 12px 36px #253b2b07;font-family:"Yu Gothic","Hiragino Kaku Gothic ProN","Noto Sans JP",system-ui,sans-serif;color:var(--ink);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--paper);font-size:16px;line-height:1.85;-webkit-text-size-adjust:100%}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default}button,input,select,textarea,a,summary{touch-action:manipulation}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid #bd9953;outline-offset:4px}button{transition:background-color .15s,border-color .15s,opacity .15s}button[hidden],[hidden]{display:none!important}h1,h2,h3,p{margin:0}h1{font-size:clamp(24px,3.5vw,32px);line-height:1.5;font-weight:650;letter-spacing:.025em}h2{font-size:23px;line-height:1.5;font-weight:650}h3{font-size:18px}p+p{margin-top:16px}.site-header{background:#fffefa;border-bottom:1px solid var(--line)}.header-inner{max-width:1080px;margin:auto;min-height:88px;padding:18px 40px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:14px;font-size:14px;font-weight:600;letter-spacing:.035em}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--green);border-radius:50%;font:22px/1 Georgia,serif;color:var(--green);flex-shrink:0}.header-tools{display:flex;align-items:center;gap:15px}.badge{font-size:11px;border:1px solid var(--line);border-radius:4px;padding:2px 8px;white-space:nowrap;color:var(--muted);letter-spacing:.04em}.badge.test-badge{border-color:#d7bc83;color:#775722;background:#fbf4e5}.study-shell{max-width:832px;padding:26px 32px 34px;margin:auto}.draft-notice{display:flex;align-items:flex-start;gap:10px;font-size:12px;line-height:1.7;color:var(--muted);margin-bottom:24px}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--gold);margin-top:7px;flex-shrink:0}.progress-region{margin:28px 0 30px}.progress-labels{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px;margin-bottom:10px;letter-spacing:.04em}.progress-track{background:#e3e7dc;height:3px;border-radius:3px;overflow:hidden}#progress-fill{background:var(--green);height:100%;width:0;transition:width .3s ease}.page-card{padding:40px;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}.eyebrow{color:var(--muted);font-size:11px;letter-spacing:.16em;font-weight:600;text-transform:uppercase;margin-bottom:13px}.page-intro{font-size:16px;margin-top:22px;line-height:2.05;white-space:pre-wrap;overflow-wrap:anywhere}.page-intro p{white-space:pre-wrap}.intro-quiet{color:var(--muted);font-size:14px}.page-heading{margin-bottom:28px}.page-heading h1+p{margin-top:16px}.institution-line{font-size:13px;color:var(--muted);margin-bottom:10px}.agent-identity{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:20px;margin-top:26px}.avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;background:var(--tint);border:1px solid #e5e9de;flex-shrink:0}.avatar-fallback{display:grid;place-items:center;font-size:15px;color:var(--green)}.agent-name{font-size:14px;font-weight:600}.agent-role{font-size:11px;color:var(--muted);letter-spacing:.04em}.rule-card{background:var(--tint);border-left:3px solid #78917e;padding:20px 23px;margin:26px 0 10px;border-radius:0 5px 5px 0}.rule-card h2{font-size:13px;color:#4e6756;margin-bottom:9px;letter-spacing:.04em}.rule-card p{font-size:15px;white-space:pre-wrap;overflow-wrap:anywhere}.question-list{margin-top:30px}.question{border:0;border-top:1px solid var(--line);padding:28px 0 29px;margin:0;min-width:0}.question legend{float:left;width:100%;padding:0;margin-bottom:20px;line-height:1.8;font-size:16px;font-weight:550;overflow-wrap:anywhere}.question legend+*{clear:both}.question::after{content:"";display:block;clear:both}.question-number{display:inline-block;font-size:11px;font-weight:500;color:var(--muted);margin-right:10px;min-width:17px;vertical-align:2px}.optional{font-size:11px;font-weight:400;color:var(--muted);margin-left:9px;white-space:nowrap}.scale-options{display:grid;grid-template-columns:repeat(var(--scale-count,7),minmax(0,1fr));gap:8px}.scale-choice{position:relative;min-width:0}.scale-choice input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}.scale-choice span{display:grid;place-items:center;min-height:52px;border:1px solid var(--line);border-radius:6px;font-family:system-ui,sans-serif;font-size:16px;background:#fffefa;transition:background .15s,border-color .15s}.scale-choice input:checked+span{background:var(--green);border-color:var(--green);color:white;box-shadow:0 2px 7px #244a3c20}.scale-choice input:focus-visible+span{outline:3px solid #bd9953;outline-offset:3px}.scale-choice:hover span{border-color:#7b9481}.scale-anchors{display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted);line-height:1.65;margin-top:12px}.scale-anchors span{max-width:46%;white-space:pre-wrap}.scale-anchors span:last-child{text-align:right}.choice-options{display:grid;gap:10px}.choice-row,.check-row{display:flex;gap:13px;align-items:flex-start;cursor:pointer;line-height:1.8;overflow-wrap:anywhere}.choice-row{padding:14px 16px;border:1px solid var(--line);border-radius:6px;background:#fffefa}.choice-row:has(input:checked){background:var(--tint);border-color:#7f9a87}.choice-row input,.check-row input{accent-color:var(--green);width:18px;height:18px;margin:5px 0 0;flex-shrink:0}.choice-row span,.check-row span{min-width:0}.check-row{padding:4px 0}.field-input{display:block;background:white;border:1px solid #bfcbbd;border-radius:6px;padding:13px 15px;width:100%;min-height:50px;color:var(--ink)}textarea.field-input{min-height:124px;resize:vertical;line-height:1.8}.number-input{max-width:180px}.text-counter{text-align:right;color:var(--muted);font-size:11px;margin-top:6px}.question.has-error{border-top-color:#cb8b78}.question.has-error .scale-choice span,.question.has-error .field-input{border-color:#cb8b78}.field-error{font-size:12px;color:var(--danger);margin-top:12px;line-height:1.7}.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;border:1px solid transparent;min-height:54px;padding:13px 25px;border-radius:6px;font-size:15px;font-weight:600;line-height:1.6;max-width:100%;white-space:normal}.primary-button{background:var(--green);color:#fff}.primary-button:hover:not(:disabled){background:var(--green-hover)}.primary-button:disabled{background:#d9dfd4;color:#798479}.secondary-button{background:transparent;border-color:#a9bba9;color:var(--green)}.secondary-button:hover:not(:disabled){background:var(--tint)}.secondary-button:disabled{opacity:.55}.action-row{display:flex;align-items:center;justify-content:flex-end;gap:18px;margin-top:25px;padding-top:26px;border-top:1px solid var(--line)}.action-note{font-size:11px;color:var(--muted);line-height:1.7;flex:1}.text-button{border:0;background:none;color:var(--green);padding:5px 0;font-size:12px;text-decoration:underline;text-underline-offset:4px;line-height:1.7}.text-button:disabled{opacity:.45}.muted-button{color:var(--muted)}.study-footer{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;min-height:55px;padding:20px 4px;font-size:11px;color:var(--muted)}.error-region{background:#fff3ee;border:1px solid #e6bfaf;border-radius:7px;padding:17px 20px;margin-bottom:20px;color:var(--danger);font-size:14px;line-height:1.8}.error-region .text-button{color:var(--danger);margin-top:5px}.loading{min-height:260px;display:flex;align-items:center;justify-content:center;gap:15px;color:var(--muted);font-size:14px}.loading-dot{width:10px;height:10px;border-radius:50%;background:var(--green);animation:pulse 1.5s infinite}.entry-mark{margin-bottom:25px;font:15px Georgia,serif;color:#809584;letter-spacing:.25em}.entry-form{margin-top:30px}.input-label{display:block;font-size:13px;font-weight:600;margin-bottom:9px}.entry-hint{font-size:12px;color:var(--muted);margin-top:11px}.entry-form .action-row{margin-top:27px}.role-notice{padding:18px 20px;background:var(--tint);border:1px solid #dce5d6;border-radius:7px;font-size:14px;line-height:1.95;margin:25px 0;white-space:pre-wrap;overflow-wrap:anywhere}.message-list{display:flex;flex-direction:column;gap:22px;margin-top:26px;min-height:95px}.message{display:flex;align-items:flex-start;gap:13px;animation:appear .2s ease-out}.message .avatar{width:39px;height:39px;margin-top:2px}.message-content{flex:1;min-width:0}.speaker-line{display:flex;align-items:baseline;gap:10px;margin-bottom:6px;flex-wrap:wrap}.speaker-name{font-size:13px;font-weight:650}.speaker-role{font-size:11px;color:var(--muted)}.message-bubble{border:1px solid #dde5d8;border-radius:0 9px 9px 9px;padding:17px 20px;background:#f6f8f1;font-size:16px;line-height:2;white-space:pre-wrap;overflow-wrap:anywhere}.message-user{padding-left:35px}.message-user .message-bubble{border-radius:9px 0 9px 9px;background:#f1eee6;border-color:#e3dfd3}.message-system .message-bubble{background:transparent;border-style:dashed;font-size:14px;color:var(--muted)}.typing-bubble{padding:18px 22px;display:flex;align-items:center;gap:5px;min-height:57px}.typing-bubble i{display:block;width:5px;height:5px;border-radius:50%;background:#849985;animation:pulse 1.1s infinite}.typing-bubble i:nth-child(2){animation-delay:.16s}.typing-bubble i:nth-child(3){animation-delay:.32s}.playback-status{font-size:12px;color:var(--muted);min-height:21px;margin-top:25px}.appeal-reason{margin:26px 0;padding:24px;border:1px solid var(--line);border-radius:8px;background:#f4f1e8;font-size:17px;line-height:2;white-space:pre-wrap;overflow-wrap:anywhere}.reason-caption{font-size:11px;color:var(--muted);margin-top:10px}.reread{border:1px solid var(--line);border-radius:7px;margin-bottom:28px;background:#fafbf5}.reread summary{cursor:pointer;font-size:13px;font-weight:600;padding:16px 19px}.reread[open] summary{border-bottom:1px solid var(--line)}.reread-content{padding:2px 19px 24px}.reread-content .message{animation:none}.reread-content .message-bubble{font-size:14px}.transition-art{height:85px;display:flex;align-items:center;gap:10px;margin:15px 0 26px;color:#a2b29c}.transition-art span{width:46px;height:46px;display:grid;place-items:center;border:1px solid #bfcdb9;border-radius:50%;font:19px Georgia,serif}.transition-art i{height:1px;flex:1;max-width:65px;background:#c9d3c2}.transition-art span.active{color:#fff;background:var(--green);border-color:var(--green)}.completion-mark{height:54px;width:54px;border:1px solid #a9bea6;border-radius:50%;display:grid;place-items:center;color:var(--green);font-size:26px;margin-bottom:24px}.completion-code{margin-top:30px;padding:22px;background:var(--tint);border:1px solid #d5dfce;border-radius:7px}.completion-code p{font-size:12px;color:var(--muted)}.completion-code code{display:block;font:21px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.06em;overflow-wrap:anywhere;margin-top:8px}.copy-status{font-size:11px;color:var(--muted);margin-left:15px}.skip-link{position:fixed;left:16px;top:16px;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;background:var(--green);color:white;z-index:100;padding:0;border:0;border-radius:5px}.skip-link:focus{width:auto;height:auto;max-width:calc(100vw - 32px);overflow:visible;clip-path:none;white-space:normal;padding:10px 16px}#main:focus{outline:none}dialog{border:1px solid var(--line);border-radius:12px;padding:0;max-width:480px;width:calc(100% - 32px);color:var(--ink);background:var(--card);box-shadow:0 30px 100px #17281b30}dialog::backdrop{background:#17281b55;backdrop-filter:blur(2px)}.dialog-body{padding:32px}.dialog-body h2{font-size:23px}.dialog-body>p:not(.eyebrow){font-size:14px;margin-top:18px}.dialog-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:12px;margin-top:30px}.dialog-actions button{font-size:13px;min-height:48px;padding:11px 18px}.preview-drawer{position:fixed;inset:0 0 0 auto;z-index:42;background:#fffefa;border-left:1px solid var(--line);width:410px;max-width:100%;padding:28px;overflow-y:auto;box-shadow:-20px 0 80px #1d3a2514}.drawer-backdrop{position:fixed;inset:0;z-index:40;border:0;background:#142a1d38;cursor:default}.drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.drawer-head .eyebrow{margin-bottom:7px}.drawer-head h2{font-size:22px}.icon-button{border:0;background:var(--tint);font-size:25px;line-height:1;width:34px;height:34px;border-radius:50%;color:var(--green)}.preview-note{font-size:13px;line-height:1.85;color:var(--muted);margin:20px 0 26px}.preview-drawer select{width:100%;border:1px solid #c3d0bf;padding:11px 12px;background:white;color:var(--ink);border-radius:5px;margin-bottom:21px;font-size:14px}.preview-check{font-size:14px;margin:0 0 25px}.choice-hint{display:block;font-size:11px;color:var(--muted);margin-top:5px}.full-width{width:100%}.preview-status{font-size:12px;color:var(--muted);line-height:1.8;margin:18px 0}.preview-counts{margin:20px 0;font-size:11px;overflow:auto}.preview-counts table{border-collapse:collapse;width:100%;font-size:10px;text-align:center}.preview-counts th,.preview-counts td{border:1px solid var(--line);padding:7px 4px}.preview-counts th{background:var(--tint);font-weight:500}.preview-counts caption{text-align:left;font-size:12px;margin-bottom:10px;color:var(--muted)}.fine-print{font-size:11px;line-height:1.7;color:var(--muted);margin-top:12px}.researcher-button{font-size:11px}.noscript{padding:30px;color:var(--danger)}.is-pending .question-list{opacity:.65;pointer-events:none}@keyframes pulse{0%,100%{opacity:.35}50%{opacity:1}}@keyframes appear{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:640px){body{font-size:15px}.header-inner{padding:17px 20px;min-height:75px;gap:10px}.brand{font-size:11px;gap:10px;letter-spacing:0}.brand-mark{width:30px;height:30px;font-size:19px}.header-tools{gap:9px;flex-shrink:0}.study-shell{padding:20px 16px 22px}.draft-notice{font-size:10px;margin-bottom:18px}.progress-region{margin:20px 2px 23px}.progress-labels{font-size:11px}.page-card{padding:28px 23px;border-radius:10px}h1{font-size:25px}.page-intro{font-size:15px;line-height:1.95;margin-top:20px}.page-heading{margin-bottom:23px}.rule-card{padding:17px 18px}.rule-card p{font-size:14px}.question{padding:25px 0}.question legend{font-size:15px;margin-bottom:18px}.question-number{margin-right:7px}.scale-options{gap:5px}.scale-choice span{min-height:50px;font-size:15px}.scale-anchors{font-size:10px;gap:12px}.choice-row{font-size:14px;padding:13px}.action-row{flex-direction:column;align-items:stretch;gap:13px;padding-top:23px;margin-top:20px}.action-note{font-size:11px;text-align:center;order:2}.primary-button,.secondary-button{min-height:53px;font-size:14px}.study-footer{font-size:10px;gap:15px;padding:17px 3px}.message-list{gap:20px}.message{gap:9px}.message .avatar{width:32px;height:32px}.message-bubble{padding:14px 16px;font-size:15px;line-height:1.95}.speaker-line{gap:7px}.speaker-name{font-size:12px}.speaker-role{font-size:10px}.message-user{padding-left:19px}.role-notice{padding:15px 17px;font-size:13px}.appeal-reason{padding:20px;font-size:15px}.reread-content{padding:0 13px 20px}.reread-content .message .avatar{width:28px;height:28px}.reread-content .message-bubble{font-size:13px;padding:12px}.dialog-body{padding:27px}.dialog-actions{gap:9px}.dialog-actions button{flex:1;white-space:nowrap}.preview-drawer{padding:25px 23px}.header-tools:has(.researcher-button:not([hidden])) .badge{display:none}.transition-art{height:62px}.completion-code code{font-size:19px}.progress-labels span:last-child{text-align:right}}
@media(max-width:360px){.page-card{padding:25px 18px}.study-shell{padding-left:12px;padding-right:12px}.header-inner{padding-left:16px;padding-right:16px}.scale-options{gap:4px}.scale-choice span{min-height:48px}.message .avatar{width:28px;height:28px}.message-bubble{padding:13px}.brand{font-size:10px}.badge{font-size:10px;padding:2px 6px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

body{height:100dvh;display:grid;grid-template-rows:minmax(0,1fr) auto;overflow:hidden}
#page-scroll{grid-row:1;min-height:0;min-width:0;overflow-y:auto;scroll-padding-top:96px;scroll-padding-bottom:16px}

/* The scene stays in place while its current task changes. */
.scene-shell{padding-top:0;scroll-margin-top:18px}
.scene-identity{position:sticky;top:0;z-index:5;padding:12px 0 10px;border-bottom:1px solid var(--line);background:var(--card)}
.scene-institution{font-size:18px;font-weight:650;line-height:1.6}
.scene-title{font-size:12px;color:var(--muted);line-height:1.7;margin-top:4px}
.scene-context{display:flex;align-items:flex-start;flex-wrap:wrap;gap:12px 22px;padding:13px 0 15px;border-bottom:1px solid var(--line)}
.background-details{flex:1;min-width:180px}
.background-details summary{cursor:pointer;font-size:12px;font-weight:550;line-height:1.8;min-height:28px;padding:3px 0}
.background-details[open]{flex-basis:100%}
.background-content{padding:16px 0 2px}
.context-paragraphs{font-size:14px;line-height:1.95;white-space:pre-wrap;overflow-wrap:anywhere}
.context-paragraphs p+p{margin-top:12px}
.background-content .rule-card{margin:18px 0 0;padding:16px 18px}
.background-content .rule-card h3{font-size:12px;margin-bottom:8px}
.background-content .rule-card p{font-size:14px}
.context-history-button{font-size:12px;min-height:28px;padding:3px 0}
.phase-region{padding-top:27px;min-width:0}
.phase-region .page-heading{margin-bottom:22px}
.phase-region h1{font-size:28px}
.message{animation:none}
.seen-history{margin:22px 0 26px}
.section-label{font-size:12px;letter-spacing:.04em;color:var(--muted);font-weight:550;margin-bottom:13px}
.seen-history .message-list{margin-top:0}
.appeal-draft{padding-top:23px;border-top:1px solid var(--line);margin-top:26px}
.appeal-draft .message-user{margin-top:14px}
.message-draft .message-bubble{border-style:dashed}
.appeal-draft .reason-caption{font-size:12px;text-align:right}
.role-notice{margin-top:24px}
.current-messages{scroll-margin-top:20px}
.playback-status{min-height:0;margin-top:22px}
.playback-status:empty{display:none}
.question-list{margin-top:23px}
.question{padding:20px 0}
.question legend{margin-bottom:14px}
.scale-anchors{margin-top:8px}
.choice-options{gap:8px}
.reading-tools{grid-row:2;display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-width:0;padding:8px max(12px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));background:var(--card);border-top:1px solid var(--line)}
.reading-tool{font-size:14px;line-height:1.6;min-height:44px;min-width:0;padding:10px 14px;background:transparent;color:var(--green);border:1px solid transparent;border-radius:5px;white-space:normal;overflow-wrap:anywhere}
.reading-tool:hover{background:var(--tint)}
.reading-next{background:var(--green);color:#fff}
.reading-next:hover{background:var(--green-hover)}
body.context-open #page-scroll{overflow:hidden}
.context-dialog{width:calc(100% - 32px);max-width:720px;max-height:85dvh;overflow:auto;overscroll-behavior:contain}
.context-dialog-head{position:sticky;top:0;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 25px;background:var(--card);border-bottom:1px solid var(--line)}
.context-dialog-head .eyebrow{font-size:10px;margin-bottom:5px}
.context-dialog-head h2{font-size:19px}
.context-dialog-head .secondary-button{font-size:12px;min-height:42px;white-space:nowrap;padding:9px 13px}
.context-dialog-content{padding:6px 25px 28px}
.context-dialog-content .role-notice{font-size:13px;margin-top:17px}
.context-dialog-content .message-list{min-height:0;margin-top:20px}
@media(max-width:640px){
  .scene-shell{padding-top:0;scroll-margin-top:12px}
  #page-scroll{scroll-padding-top:88px}
  .scene-identity{padding:9px 0 8px}
  .scene-institution{font-size:16px}
  .scene-title{font-size:11px}
  .scene-context{gap:7px 16px;padding:10px 0}
  .background-details{min-width:150px}
  .background-details summary,.context-history-button{font-size:11px}
  .phase-region{padding-top:23px}
  .phase-region h1{font-size:24px}
  .phase-region .page-heading{margin-bottom:20px}
  .seen-history{margin:19px 0 23px}
  .message-list{gap:18px;margin-top:22px}
  .message-bubble{padding:13px 15px;line-height:1.9}
  .question-list{margin-top:20px}
  .question{padding:18px 0}
  .question legend{margin-bottom:13px;line-height:1.75}
  .scale-choice span{min-height:48px}
  .scale-anchors{margin-top:8px}
  .choice-row{padding:11px 12px}
  .reading-tools{gap:6px}
  .reading-tool{flex:0 1 auto;font-size:14px;min-height:44px;padding:9px 8px}
  .context-dialog{width:calc(100% - 20px);max-height:90dvh}
  .context-dialog-head{gap:12px;padding:17px 16px}
  .context-dialog-head h2{font-size:16px}
  .context-dialog-head .secondary-button{font-size:11px;padding:8px 9px}
  .context-dialog-content{padding:2px 16px 24px}
}

/* Local Japanese type and validation overrides, after all responsive rules. */
:root{
  font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI",Meiryo,"Noto Sans JP","Yu Gothic",system-ui,sans-serif;
  --danger:#b4232c;
}
body{font-size:17px;font-weight:500}
.page-intro,.rule-card p,.background-content .rule-card p,.context-paragraphs,
.message-bubble,.reread-content .message-bubble,.message-system .message-bubble,
.role-notice,.context-dialog-content .role-notice,.appeal-reason,
.choice-row,.check-row,.field-input{font-size:17px}
.question legend{font-size:17px;font-weight:700}
.scale-choice span{font-family:inherit;font-size:17px;font-weight:700}
.scale-anchors{font-size:14px;overflow-wrap:anywhere}
.primary-button,.secondary-button{font-size:16px}
.question.has-error{
  border-top-color:var(--danger);
  background:#fff2f2;
  outline:2px solid var(--danger);
  outline-offset:0;
  border-radius:6px;
}
.question.has-error legend{color:#941b24}
.question.has-error .scale-choice span,
.question.has-error .field-input,
.question.has-error .choice-row,
.question.has-error .check-row{
  border-color:var(--danger);
  background:#fffafa;
  box-shadow:inset 0 0 0 1px var(--danger);
}
.question.has-error .check-row{border-radius:4px}
.question.has-error .scale-choice input:checked+span{
  background:var(--green);
  border-color:var(--green);
  color:#fff;
  box-shadow:0 2px 7px #244a3c20;
}
.question.has-error .choice-row:has(input:checked),
.question.has-error .check-row:has(input:checked){
  background:var(--tint);
  border-color:var(--green);
  box-shadow:inset 0 0 0 1px var(--green);
}
.field-error{
  color:#941b24;
  background:#ffe4e6;
  border:1px solid var(--danger);
  border-left-width:4px;
  border-radius:4px;
  padding:9px 12px;
  font-size:15px;
  font-weight:700;
  overflow-wrap:anywhere;
}
.field-error:empty{display:none}
.current-messages:empty{display:none}
.review-history{margin:18px 0;border:1px solid var(--line);border-radius:6px;padding:12px 16px}
.review-history summary{cursor:pointer;min-height:28px;color:var(--green)}
.item-instruction{font-size:16px;line-height:1.8;margin:8px 0 16px;overflow-wrap:anywhere}
.scale-options.fully-labelled{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.fully-labelled .scale-choice{display:flex;align-items:center;gap:10px;position:relative;border:1px solid var(--line);border-radius:6px;padding:10px;min-height:48px;cursor:pointer}
.fully-labelled .scale-choice span{min-height:0;border:0;min-width:22px;background:transparent;display:block}
.fully-labelled .scale-option-label{font-size:14px;line-height:1.5;overflow-wrap:anywhere}
.fully-labelled .scale-choice:has(input:checked){background:var(--tint);outline:2px solid var(--green)}
.review-history .message-list{margin:16px 0 4px}
.background-details summary,.context-history-button,.review-history summary{font-size:14px}
.speaker-name,.agent-name{font-size:15px}
.speaker-role,.agent-role{font-size:13px}
.playback-status{font-size:15px;line-height:1.8;color:var(--ink)}
.typing-bubble{flex-wrap:wrap}
.playback-status.has-save-error{color:var(--danger);background:#fff2f2;border:2px solid var(--danger);border-radius:6px;padding:12px;font-weight:700}
.error-region{border-color:var(--danger);background:#fff2f2;font-size:16px;font-weight:600}
.review-policy{margin:20px 0 10px;padding:18px 20px;border:1px solid var(--line);border-radius:6px}
.review-policy h2,.review-policy h3{font-size:15px;font-weight:700;line-height:1.7;margin-bottom:10px}
.policy-paragraphs{font-size:17px;line-height:1.95;white-space:pre-wrap;overflow-wrap:anywhere}
.policy-paragraphs p+p{margin-top:12px}
.background-content .review-policy{margin:16px 0 0}
.message-recipient{font-size:14px;line-height:1.7;color:var(--muted);margin-bottom:8px;overflow-wrap:anywhere}
.agent-introduction{font-size:17px;line-height:1.95;margin-top:16px;white-space:pre-wrap;overflow-wrap:anywhere}
.question{scroll-margin-top:100px}
#error-region{scroll-margin-top:16px}
@media(max-width:640px){
  body{font-size:17px}
  .page-intro,.rule-card p,.background-content .rule-card p,.context-paragraphs,
  .message-bubble,.reread-content .message-bubble,.message-system .message-bubble,
  .role-notice,.context-dialog-content .role-notice,.appeal-reason,
  .question legend,.choice-row,.check-row,.field-input{font-size:17px}
  .scale-choice span{font-size:17px}
  .scale-anchors{font-size:14px}
}

/* chat_thread_v10: one conversation per scene, questions in their own card. */
.scene-identity{padding:14px 0 12px}
.scene-narrative{font-size:17px;line-height:2;margin-top:22px;white-space:pre-wrap;overflow-wrap:anywhere}
.scene-narrative p+p{margin-top:14px}
.narrative-details{margin-top:14px;border-bottom:1px solid var(--line);padding-bottom:12px}
.narrative-details summary{cursor:pointer;font-size:14px;color:var(--green);min-height:32px;padding:4px 0}
.narrative-details .scene-narrative{margin-top:10px;color:var(--muted);font-size:16px}
.thread{display:flex;flex-direction:column;gap:20px;margin-top:24px}
.thread:empty{display:none}

.message-user{padding-left:0;justify-content:flex-end}
.message-user .message-content{max-width:85%;flex:0 1 auto}
.message-user .speaker-line{justify-content:flex-end}
.message-a1 .message-content,.message-a2 .message-content{max-width:92%}
.message-a2 .message-bubble{background:#f3f5f8;border-color:#dde2ea}
.scene-task{margin-top:24px}
.survey-card{margin-top:30px;padding:22px 24px 6px;border:1px solid var(--line);border-radius:10px;background:#fbfbf8}
.survey-intro{font-size:16px;line-height:1.9;color:var(--ink);overflow-wrap:anywhere}
.survey-card .question-list{margin-top:6px}
.survey-card .question:first-child{border-top:0}
.composer-lead{font-size:16px;line-height:1.9;margin-top:6px}
.composer{margin-top:14px;padding:16px 18px;border:1px solid #c8d2c3;border-radius:10px;background:#fff}
.composer-text{font-size:17px;line-height:1.95;white-space:pre-wrap;overflow-wrap:anywhere}
.scene-task .action-row{border-top:0;padding-top:0;margin-top:18px}
@media(max-width:640px){
  .survey-card{padding:16px 14px 4px;margin-top:24px}
  .message-user .message-content{max-width:92%}
  .message-a1 .message-content,.message-a2 .message-content{max-width:100%}
}