/* Operate surface: bounded stage, persistent assessment. */
.device-summary{display:flex;align-items:center;gap:16px;padding:0 0 14px;border-bottom:1px solid var(--line);flex-shrink:0;min-width:0}.device-caption{font-size:10px;letter-spacing:1.2px;color:var(--muted)}.device-summary strong{font-size:15px;font-weight:650}.device-browser{font-size:12px;padding-left:16px;border-left:1px solid var(--line);color:var(--muted)}.device-note{margin-left:auto;font-size:11px;color:var(--muted)}
@media(max-width:760px){.device-summary{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 10px;padding:2px 4px 8px}.device-caption{grid-column:1/-1;font-size:9px}.device-summary strong{font-size:14px}.device-browser{padding:0;border:0;font-size:11px}.device-note{grid-column:1/-1;margin:0;font-size:10px}}
@media print{.device-summary{display:none}}
.intro-archive{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);margin:0}
header{height:82px;padding:12px 28px}main{max-width:1600px;height:calc(100dvh - 82px);padding:20px 28px 0;display:flex;flex-direction:column;gap:16px}
.layout{flex:1;min-height:0;grid-template-columns:210px minmax(0,1fr);gap:24px}aside{overflow:auto;padding:0 4px}.session{min-width:0;margin-top:22px}.session strong{font-size:18px}.aside-note{margin-top:16px}.connection-note{font-size:12px}
#workspace{padding:0;display:grid;grid-template-columns:minmax(0,1fr) 245px;overflow:hidden;border-radius:10px}.stage{padding:22px;overflow:auto;min-width:0;min-height:0}.assessment{margin:0;padding:22px 16px;border-top:0;border-left:1px solid var(--line);overflow:auto;background:#fafbf7}.assessment .buttons{display:grid;grid-template-columns:1fr}.assessment label{margin-top:22px}.assessment textarea{min-height:90px}.assessment h3{margin-bottom:16px}#instructions{margin-bottom:16px}h2{font-size:24px}.screen-preview{height:clamp(140px,27vh,235px)}.test-pad{height:200px}#keyboard-pad{height:115px}.keyboard{padding:10px 0;gap:4px}.key{padding:5px;min-width:28px}video{max-height:230px}select{min-height:44px;max-width:100%;margin-left:12px}footer{flex-shrink:0;padding:0 0 16px}footer>.buttons{justify-content:flex-end}.info-dialog{max-width:720px;width:calc(100% - 32px);max-height:85dvh;border:1px solid var(--line);border-radius:10px;padding:24px;color:var(--ink)}dialog::backdrop{background:#132d25a6}.info-dialog .limits{margin:20px 0 0;padding:0;border:0}
@media(max-width:1000px){.layout{grid-template-columns:170px minmax(0,1fr);gap:12px}#workspace{grid-template-columns:minmax(0,1fr) 210px}.stage{padding:16px}main{padding:16px 16px 0}.privacy{display:none}}
@media(max-width:760px){header{height:72px;padding:10px 14px;gap:12px}.brand{font-size:20px}header button{font-size:12px;padding:8px 10px}main{height:calc(100dvh - 72px);padding:8px 10px 0;gap:8px}.layout{display:flex;flex-direction:column;gap:8px}aside{overflow:visible;flex-shrink:0;padding:0}aside>.eyebrow,.aside-note,.session,.connection-note{display:none}nav{display:flex;overflow-x:auto;gap:6px;padding-bottom:4px}nav button{flex-shrink:0;font-size:12px;gap:6px;min-height:44px}nav .num{display:none}#workspace{display:flex;flex:1;min-height:0;flex-direction:column}.stage{flex:1;padding:14px;min-height:0;overflow:auto}.assessment{flex-shrink:0;max-height:40%;overflow:auto;border-left:0;border-top:1px solid var(--line);padding:10px 12px}.assessment h3{font-size:13px;margin:0 0 6px}.assessment .buttons{display:flex;gap:6px}.assessment button{padding:7px 9px;font-size:12px}.assessment label{margin:8px 0 4px;font-size:12px}.assessment textarea{min-height:44px;height:44px;padding:8px;resize:vertical}#saved{margin:2px 0 0;min-height:0;font-size:10px}.assessment label span{font-size:10px}footer{padding:0 0 max(8px,env(safe-area-inset-bottom));font-size:10px}footer>span{display:none}footer>.buttons{margin:0;gap:6px;justify-content:space-between}footer button{font-size:11px;padding:7px 9px}.screen-preview{height:150px}h2{margin-top:8px;font-size:22px}#instructions{font-size:13px}.tool-heading .pill{font-size:8px}.info-dialog{padding:18px}}
#report{width:min(820px,calc(100% - 28px));max-height:88dvh;margin:auto;padding:0;color:var(--ink)}.report-top{position:sticky;top:0;background:white;padding:16px 22px;border-bottom:1px solid var(--line);gap:12px}.report-top h2{margin:0;font-size:22px}#report-content{padding:12px 22px}.report-actions{position:sticky;bottom:0;padding:12px 22px;background:white;border-top:1px solid var(--line)}
@media print{main{display:block;height:auto;padding:0}header,footer,.layout,.info-dialog,.report-actions,#close-report{display:none!important}#report{display:block!important;position:static!important;width:100%;height:auto;max-height:none;overflow:visible;margin:0;padding:0;border:0}#report::backdrop{display:none}.report-top{position:static;padding:0;border:0}#report-content{padding:0}}