:root{color-scheme:light;--ink:#183835;--muted:#5c706d;--green:#17675c;--line:#dbe5df;--paper:#fffefa;--bg:#eef3ed;--accent:#d0e9dc}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,"Microsoft JhengHei",sans-serif;line-height:1.75}.shell{max-width:1000px;margin:auto;padding:0 28px}.top{height:96px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{font-size:14px;font-weight:800;letter-spacing:.08em;color:var(--ink);text-decoration:none}.badge{font-size:12px;padding:5px 12px;border:1px solid #b9cec1;border-radius:30px}.panel{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:48px 52px;box-shadow:0 14px 44px #193c3310;animation:appear .22s ease}.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--green);font-weight:800;text-transform:uppercase;margin-top:0}h1{font-size:clamp(28px,4vw,42px);line-height:1.35;letter-spacing:-.03em;margin:12px 0 20px}h2{font-size:18px;margin-top:0}.lead{font-size:18px;max-width:620px}.muted{color:var(--muted);font-size:14px}.facts{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:30px 0;padding:20px 0;gap:12px}.facts strong,.facts span{display:block}.facts span{font-size:13px;color:var(--muted)}.inset{background:#f1f5ef;border-radius:14px;padding:20px 24px;margin:22px 0}.inset p{margin:0 0 8px}.inset p:last-child{margin-bottom:0}button,input,select{font:inherit}button{cursor:pointer;border:0;border-radius:10px;padding:12px 22px;transition:background .12s}button:disabled{cursor:not-allowed;opacity:.5}.primary{background:var(--green);color:white;font-weight:750}.primary:hover:not(:disabled){background:#0e5147}.secondary{background:#e1ebe3;color:var(--ink)}.danger{background:#893a32;color:white}.text-button{background:transparent;color:var(--muted);font-size:13px;padding:5px;text-decoration:underline}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #b46c20;outline-offset:4px}label{display:block;font-size:14px;font-weight:600}input:not([type=checkbox]):not([type=radio]),select{width:100%;padding:10px 12px;border:1px solid #b9cec1;border-radius:8px;background:white;color:var(--ink);margin:5px 0 16px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.checks{margin:10px 0 25px}.checks label{display:flex;align-items:flex-start;gap:10px;margin:14px 0;font-weight:400}.checks input{margin-top:8px;accent-color:var(--green)}.preline{white-space:pre-line}.progress-head{display:flex;justify-content:space-between;gap:16px;align-items:center;font-size:13px}progress{width:100%;height:7px;border:0;border-radius:20px;overflow:hidden;accent-color:var(--green);background:#e0e9e2}progress::-webkit-progress-bar{background:#e0e9e2}progress::-webkit-progress-value{background:var(--green)}.players{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:28px 0}.player{border:1px solid #cedfd4;background:#f8faf5;border-radius:16px;padding:24px}.player.playing{border-color:var(--green);box-shadow:0 0 0 2px #17675c25}.player-title{display:flex;align-items:center;justify-content:space-between}.letter{font-size:28px;font-weight:800}.player button{width:100%;margin:12px 0}.player small{display:block;color:var(--muted)}fieldset{padding:0;border:0;margin:22px 0}legend{font-size:14px;font-weight:600;margin-bottom:10px}.choice-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}.choice{border:1px solid #cdded1;border-radius:12px;display:flex;gap:8px;align-items:center;padding:16px 12px;cursor:pointer}.choice:has(input:checked){background:var(--accent);border-color:var(--green)}fieldset:disabled .choice{opacity:.5;cursor:not-allowed}.choice input{accent-color:var(--green)}.choice strong{font-size:14px}details{border-top:1px solid var(--line);padding-top:15px;margin-top:25px;font-size:14px}summary{cursor:pointer;color:var(--muted)}footer{padding:24px 0 40px;color:var(--muted);font-size:13px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}footer .inset{width:100%}.notice{padding:12px 20px;border-radius:10px;background:#fff0d9;color:#6c4611;margin-bottom:18px}.center{text-align:center;padding-top:75px;padding-bottom:75px}.center h1{font-size:34px}code{font-family:monospace;word-break:break-all}.admin-actions{display:flex;flex-wrap:wrap;gap:10px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0}.metrics div{padding:16px;background:#f1f5ef;border-radius:12px}.metrics strong{font-size:26px;display:block}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px;text-align:left}th,td{padding:10px 12px;border-bottom:1px solid var(--line)}textarea{width:100%;min-height:140px;font:14px monospace}a{color:var(--green)}[hidden]{display:none!important}@keyframes appear{from{opacity:.4;transform:translateY(5px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}@media(max-width:640px){.shell{padding:0 16px}.top{height:76px}.panel{padding:28px 22px;border-radius:18px}.facts{gap:8px}.facts strong{font-size:14px}.facts span{font-size:11px}.form-grid,.players{grid-template-columns:1fr}.players{gap:12px}.player{padding:18px}.choice-grid{grid-template-columns:1fr}.choice{padding:13px}.primary{width:100%}.progress-head{align-items:flex-start}.metrics{grid-template-columns:1fr 1fr}.brand{font-size:12px}.center{padding:45px 22px}} 
#players.mos{grid-template-columns:1fr}.choice-grid.mos-scale{grid-template-columns:repeat(5,1fr)}.mos-scale .choice{padding:14px 8px}.mos-scale .choice strong{font-size:13px}.allocation-summary{font-size:13px;white-space:pre-wrap;word-break:break-all}@media(max-width:640px){.choice-grid.mos-scale{grid-template-columns:1fr}}
#results table{min-width:820px}#results th{white-space:nowrap}
.admin-oauth{max-width:420px;margin:24px 0}.review-panel{border-top:1px solid var(--line);margin-top:32px;padding-top:28px}.review-controls{display:grid;grid-template-columns:2fr 1fr;gap:20px}.reference-table{min-width:880px}.response-table{min-width:1060px}.review-panel h3{font-size:16px;margin-top:28px}.review-panel td{vertical-align:top}.review-panel small{display:block;color:var(--muted)}#reference-player{width:100%;margin-top:16px}@media(max-width:640px){.review-controls{grid-template-columns:1fr;gap:0}.admin-oauth{width:100%}}
.listener-top .account-logout{min-height:44px;padding:8px 12px;border:1px solid var(--line);border-radius:10px;text-decoration:none;background:var(--paper);color:var(--ink)}.listener-top .account-logout:hover{background:#e1ebe3}
/* Provider assets are served locally; no third-party scripts or fonts on the login page. */
@font-face{font-family:"Google Sans";font-style:normal;font-weight:500;font-display:swap;src:url("/assets/icons/google-sans.ttf") format("truetype")}
.intro-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:36px;align-items:start}.intro-layout h1{font-size:clamp(28px,3.2vw,36px)}.intro-layout .lead{font-size:16px}.intro-layout .facts{margin:24px 0}.intro-layout .inset{padding:18px}.intro-layout .inset p{font-size:14px}.entry-card{background:#fff;border:1px solid #cdded3;border-radius:20px;padding:26px;box-shadow:0 6px 24px #193c3309}.entry-card h2{font-size:23px;line-height:1.4;margin:6px 0 10px}.entry-card .eyebrow{margin-bottom:8px}.entry-card .muted{font-size:13px;margin:8px 0 20px}.oauth-buttons{display:grid;gap:12px;margin-top:20px}.oauth-button{display:flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px;border:1px solid #747775;border-radius:10px;background:white;color:#1f1f1f;text-decoration:none;font-size:14px;font-weight:500;line-height:20px;transition:background .12s,box-shadow .12s}.oauth-button img{object-fit:contain;flex:none}.oauth-google{font-family:"Google Sans",system-ui,"Microsoft JhengHei",sans-serif}.oauth-google:hover{background:#f8faff;box-shadow:0 0 0 2px #4285f412}.oauth-discord{border-color:#5865f2;color:#353fac;background:#f6f7ff}.oauth-discord:hover{background:#e9ecff;box-shadow:0 0 0 2px #5865f216}.oauth-button:focus-visible{outline:3px solid #b46c20;outline-offset:4px}.oauth-button[aria-disabled=true]{opacity:.6;cursor:wait}.login-caption{font-size:12px;line-height:1.65;color:var(--muted);margin:12px 0 0}.login-reminder{border-left:3px solid #bcd7c6;padding:0 0 0 12px;margin:24px 0;font-size:13px}.login-reminder p{margin:4px 0 0;color:var(--muted)}.login-help{margin-top:16px;font-size:12px}.login-help summary{font-size:13px;color:var(--ink)}.login-help p{margin:12px 0;color:var(--muted)}.entry-card #intro-next{width:100%;margin-top:22px}.entry-card #intro-next:disabled{display:none}.login-feedback{border:1px solid #efd6a6;background:#fff5e6;border-radius:12px;padding:14px;margin:18px 0;font-size:13px;line-height:1.65;color:#68450e;outline-offset:3px}.login-feedback p{margin:5px 0 0}.login-feedback.cancelled{background:#f2f6f3;border-color:var(--line);color:var(--ink)}.login-progress{font-size:13px;color:var(--green);margin:14px 0 0}.login-ready{padding-top:8px}.ready-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:#e2f1e7;color:var(--green);font-weight:800;margin-bottom:20px}.login-ready .muted{margin-bottom:0}.entry-card #mock-form .form-grid{grid-template-columns:1fr}.entry-card #mock-form button{width:100%}
@media(max-width:800px){.intro-layout{display:flex;flex-direction:column;gap:0}.study-overview{display:contents}.study-overview>.eyebrow{order:0}.study-overview>h1{order:1}.study-overview>.lead{order:2;margin-bottom:24px}.entry-card{order:3;width:100%;padding:24px}.intro-layout .facts{order:4;width:100%}.intro-layout .inset{order:5;margin-bottom:12px}.study-overview>#timing{order:6}}@media(max-width:640px){.entry-card{padding:22px 18px;border-radius:16px}.intro-layout .facts{margin:20px 0}.oauth-button{min-height:48px}.entry-card h2{font-size:22px}}
.listener-top{height:auto;min-height:112px;padding-top:18px;padding-bottom:18px}.top-info{display:flex;align-items:center;justify-content:flex-end;gap:14px;flex-wrap:wrap}.account-info{display:flex;flex-direction:column;align-items:flex-end;gap:3px;font-size:12px;color:var(--muted)}.account-state{display:flex;align-items:center;gap:8px}.account-platform{padding:2px 9px;border:1px solid var(--line);border-radius:20px;background:var(--paper);font-weight:750;color:var(--ink)}.account-info.signed-in #account-status{color:var(--green)}.account-label{font-size:11px;font-variant-numeric:tabular-nums;letter-spacing:.02em}@media(max-width:640px){.listener-top{align-items:flex-start;gap:10px;min-height:100px}.listener-top .brand{padding-top:4px;white-space:nowrap}.top-info{gap:7px;max-width:210px}.top-info .badge{font-size:10px;padding:3px 8px}.account-label{font-size:10px}.account-state{gap:6px}}@media(max-width:380px){.listener-top{flex-wrap:wrap}.listener-top .top-info{width:100%;max-width:none;justify-content:space-between}.listener-top .account-info{align-items:flex-end}}
.reference-table td,.response-table td {white-space:pre-line}
.table-wrap:has(.reference-table){max-height:330px;border:1px solid var(--line);border-radius:10px}.table-wrap:has(.response-table){max-height:580px}.review-panel th{position:sticky;top:0;background:#f1f5ef;z-index:1;white-space:nowrap}.review-panel th,.review-panel td{padding:9px 12px}@media(max-width:640px){.table-wrap:has(.reference-table){max-height:270px}#study-info{overflow-wrap:anywhere}}

@media(max-width:800px){.study-overview>#repeat-note{order:6}.study-overview>#timing{order:7}}
.attribute-question{margin:26px 0 8px}.attribute-question legend{font-size:16px;font-weight:750;margin-bottom:2px}.attribute-help{margin:0 0 10px}.choice-grid.attr-scale{grid-template-columns:repeat(var(--points,10),1fr);gap:6px}.attr-scale .choice{position:relative;justify-content:center;padding:12px 2px}.attr-scale .choice input{position:absolute;opacity:0;width:1px;height:1px;margin:0}.attr-scale .choice:has(input:focus-visible){outline:3px solid #b46c20;outline-offset:2px}.attr-scale .choice strong{font-size:15px}.attr-ends{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:var(--muted);margin-top:6px}@media(max-width:640px){.choice-grid.attr-scale{grid-template-columns:repeat(5,1fr)}}
#attribute-block td{white-space:pre-line;vertical-align:top}
#attribute-block table{min-width:1100px}
.example-list{display:grid;gap:14px;margin:24px 0}.example{border:1px solid #cedfd4;background:#f8faf5;border-radius:14px;padding:16px 18px}.example strong{display:block;margin-bottom:10px}.example audio{width:100%}.example.heard{border-color:var(--green);box-shadow:0 0 0 1px #17675c40}