/* Mental maths uses the site's colour tokens and stays outside exam styling. */
#mentalScreen{color:var(--du-ink,#111323)}
#mentalScreen [hidden]{display:none!important}
#mentalScreen .mm-modes{display:flex;gap:8px;flex-wrap:wrap;margin:0 16px 24px;padding:5px;background:var(--du-soft,#f6f6f8);border-radius:18px;width:fit-content}
#mentalScreen .mm-modes button{padding:12px 20px;border:0;border-radius:14px;background:transparent;color:var(--du-muted,#707184);font:inherit;font-weight:650;cursor:pointer}
#mentalScreen .mm-modes button[aria-pressed="true"]{background:var(--duck-gradient,#ffdd46);color:#30260b;box-shadow:0 3px 10px #48370e10}
#mentalScreen .mm-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:24px;margin:0 16px;align-items:start;max-width:1180px}
#mentalScreen .mm-panel{background:var(--du-surface,#fff);border:1px solid var(--du-line,#eeedf1);border-radius:22px;padding:26px;box-shadow:var(--du-card-shadow,0 6px 25px #00000004)}
#mentalScreen .mm-settings h2{font-size:20px!important;letter-spacing:-.5px!important;margin:0 0 10px}
#mentalScreen .mm-muted{color:var(--du-muted,#707184)!important;line-height:1.6}
#mentalScreen .mm-small{font-size:12px}
#mentalScreen fieldset{border:0;padding:0;margin:20px 0}
#mentalScreen .mm-category{display:flex;gap:10px;align-items:center;line-height:1.4;padding:10px 0;cursor:pointer;font-size:14px}
#mentalScreen input[type=checkbox]{accent-color:#aa8100;width:17px;height:17px;flex:0 0 17px}
#mentalScreen .mm-range{font-size:12px;line-height:1.8;color:var(--du-muted,#707184);border-top:1px solid var(--du-line,#eee);padding-top:16px}
#mentalScreen .mm-timer-setting{display:flex;align-items:center;gap:10px;font-size:14px;margin-top:24px}
#mentalScreen .mm-workspace{min-width:0;display:grid;gap:18px}
#mentalScreen .mm-question-card{padding:30px clamp(18px,3vw,42px)}
#mentalScreen .mm-question-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px}
#mentalScreen .mm-skill{background:var(--du-soft,#f6f6f8);border-radius:20px;padding:7px 12px;font-weight:650}
#mentalScreen .mm-clock{margin-left:auto;font-variant-numeric:tabular-nums;color:var(--du-muted,#707184)}
#mentalScreen h2.mm-prompt{font-size:clamp(29px,4vw,54px)!important;line-height:1.25!important;letter-spacing:-1.5px!important;font-weight:700!important;margin:36px 0 14px!important;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
#mentalScreen .mm-label{display:block;font-size:13px;font-weight:650;margin:20px 0 9px}
#mentalScreen .mm-answer-row{display:flex;gap:9px;align-items:stretch}
#mentalScreen #mmAnswer{min-width:0;width:100%;flex:1;padding:15px 16px;border:1px solid var(--du-line,#ddd);border-radius:13px;background:var(--du-bg,#fcfcfd);color:var(--du-ink,#111323);font:inherit;font-size:23px!important;line-height:1.3}
#mentalScreen #mmAnswer[aria-invalid=true]{border-color:#b85440}
#mentalScreen .mm-primary{border:0;border-radius:13px;background:var(--duck-gradient,#ffdd46);color:#30260b;padding:14px 22px;font:inherit;font-size:14px;font-weight:700;cursor:pointer;white-space:nowrap}
#mentalScreen .mm-sign{border:1px solid var(--du-line,#ddd);border-radius:13px;background:var(--du-soft,#f6f6f8);color:var(--du-ink,#111323);font:inherit;padding:8px 12px;cursor:pointer}
#mentalScreen button:disabled{opacity:.55;cursor:default}
#mentalScreen :is(input,select,button):focus-visible{outline:3px solid #d2a700;outline-offset:3px}
#mentalScreen select{width:100%;border:1px solid var(--du-line,#ddd);border-radius:12px;padding:12px;font:inherit;background:var(--du-bg,#fff);color:var(--du-ink,#111323)}
#mentalScreen .mm-feedback{min-height:27px;margin-top:14px;font-size:14px;font-weight:600;line-height:1.5}
#mentalScreen .mm-feedback[data-tone=correct]{color:#197052}
#mentalScreen .mm-feedback[data-tone=wrong]{color:#a44332}
html[data-duck-theme=dark] #mentalScreen .mm-feedback[data-tone=correct]{color:#7cddb1}
html[data-duck-theme=dark] #mentalScreen .mm-feedback[data-tone=wrong]{color:#ffac98}
#mentalScreen .mm-help-actions{display:flex;gap:24px;flex-wrap:wrap}
#mentalScreen .mm-text-button{background:none;border:0;padding:4px 0;color:var(--du-ink,#111323);font:inherit;font-size:13px;text-decoration:underline;text-underline-offset:4px;cursor:pointer}
#mentalScreen .mm-hint,#mentalScreen .mm-example{background:var(--du-soft,#f6f6f8);border-radius:12px;padding:16px;line-height:1.7;font-size:14px}
#mentalScreen .mm-explanation{border-top:1px solid var(--du-line,#eee);padding-top:14px;margin-top:20px;line-height:1.75;font-size:15px}
#mentalScreen .mm-explanation h3{font-size:14px;margin:0}
#mentalScreen .mm-lesson{border-left:4px solid #e4bc35}
#mentalScreen .mm-lesson h2{font-size:22px!important;margin:0 0 10px}
#mentalScreen .mm-lesson p{line-height:1.7;font-size:14px}
#mentalScreen .mm-eyebrow{text-transform:uppercase;letter-spacing:1.5px;font-size:10px!important;font-weight:750;color:var(--du-muted,#707184);margin:0 0 8px}
#mentalScreen .mm-stats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
#mentalScreen .mm-stats>div{background:var(--du-surface,#fff);border:1px solid var(--du-line,#eee);border-radius:16px;padding:19px 15px}
#mentalScreen .mm-stats span{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums}
#mentalScreen .mm-stats p{font-size:12px;color:var(--du-muted,#707184);margin:6px 0 0;line-height:1.4}
#mentalScreen .mm-session-footer{display:flex;gap:12px;justify-content:space-between;flex-wrap:wrap;align-items:center}
#mentalScreen .mm-sr{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:850px){#mentalScreen .mm-layout{grid-template-columns:1fr}#mentalScreen #mmCategories{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}#mentalScreen .mm-settings{padding:20px}#mentalScreen .mm-range{display:none}}
@media(max-width:480px){#mentalScreen .mm-layout,#mentalScreen .mm-modes{margin-left:0;margin-right:0}#mentalScreen .mm-modes{width:100%;box-sizing:border-box}#mentalScreen .mm-modes button{flex:1;padding:12px 9px;font-size:13px}#mentalScreen .mm-stats{grid-template-columns:repeat(2,minmax(0,1fr))}#mentalScreen .mm-answer-row{flex-wrap:wrap}#mentalScreen #mmAnswer{flex:1 1 calc(100% - 64px)}#mentalScreen .mm-primary{width:100%}#mentalScreen h2.mm-prompt{letter-spacing:-.6px!important;margin-top:24px!important}}
/* Keep settings compact and the signed-answer control readable on phones. */
html body.duck-airy #mentalScreen .mm-category{margin:0!important;min-height:0!important;padding:9px 0!important;font-weight:500!important;color:var(--du-ink)!important}
#mentalScreen :is(input,button,select){box-sizing:border-box}
#mentalScreen #mmSettingsSummary{display:none;font-weight:650;cursor:pointer}
html body.duck-airy #mentalScreen .mm-sign{background:var(--du-soft)!important;color:var(--du-ink)!important;border:1px solid var(--du-line)!important}
#mentalScreen .mm-question-card{scroll-margin-top:160px}
@media(max-width:850px){#mentalScreen #mmSettingsSummary{display:list-item;padding:2px 0}#mentalScreen .mm-settings-body{padding-top:20px}#mentalScreen{scroll-padding-top:145px}}
@media(max-width:480px){#mentalScreen .mm-answer-row{display:grid;grid-template-columns:minmax(0,1fr) 48px}#mentalScreen #mmAnswer{width:100%}#mentalScreen .mm-primary{grid-column:1/-1}#mentalScreen .mm-sign{padding:6px}}
/* The additional destination needs the two-row header on small desktops. */
@media(min-width:1101px) and (max-width:1350px){
 html body.duck-airy.duck-redesign #sideNav.duck-topbar{flex-wrap:wrap!important;justify-content:space-between;height:134px!important;gap:8px!important;padding:8px 14px!important}
 html body.duck-airy.duck-redesign #sideNav.duck-topbar .side-nav-head{flex:1!important;order:0}
 html body.duck-airy.duck-redesign #sideNav.duck-topbar .airy-header-account{order:1}
 html body.duck-airy.duck-redesign #sideNav.duck-topbar .side-nav-items{flex:0 0 100%!important;order:2;justify-content:center!important}
 html body.duck-airy.duck-redesign .screen.modern-ui.nav-aware{padding-top:174px!important}
}
html body.duck-airy #mentalScreen input[type="checkbox"]{width:17px!important;height:17px!important;min-width:17px!important;min-height:17px!important;max-height:17px!important;margin:0!important;padding:0!important;box-shadow:none!important}

@media(max-width:480px){#mentalScreen .mm-stats>div:last-child{grid-column:1/-1}}

/* Feedback overlays the existing border while the next question is already usable. */
#mentalScreen .mm-question-card{position:relative}
#mentalScreen .mm-question-card.mm-correct-flash::after{
 content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;
 border:2px solid #4ade80;box-shadow:0 0 16px #4ade8099,inset 0 0 8px #4ade8040;
 animation:mm-correct-glow 550ms ease-out forwards;
}
@keyframes mm-correct-glow{0%,35%{opacity:1}100%{opacity:0}}
@media(prefers-reduced-motion:reduce){
 #mentalScreen .mm-question-card.mm-correct-flash::after{animation-timing-function:steps(1,end)}
}

#mentalScreen .mm-history h2,#mentalScreen .mm-fluency h2{margin-top:0}
#mentalScreen .mm-history-filters{display:flex;gap:16px;flex-wrap:wrap;margin:20px 0}
#mentalScreen .mm-history-filters label{flex:1;min-width:140px;font-size:13px;font-weight:600}
#mentalScreen .mm-history-filters select{margin-top:7px}
#mentalScreen .mm-history-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
#mentalScreen .mm-history-stats span{font-size:22px}
#mentalScreen .mm-table-scroll{max-width:100%;overflow:auto;border:1px solid var(--du-line,#ddd);border-radius:14px;margin-top:20px}
#mentalScreen .mm-row-scroll{max-height:460px}
#mentalScreen .mm-progress-table{width:100%;border-collapse:separate;border-spacing:0;min-width:580px;font-size:13px;font-variant-numeric:tabular-nums;text-align:left}
#mentalScreen .mm-progress-table th,#mentalScreen .mm-progress-table td{padding:13px 14px;border-bottom:1px solid var(--du-line,#ddd);vertical-align:middle;white-space:nowrap}
#mentalScreen .mm-progress-table th{font-weight:600;text-align:left}
#mentalScreen .mm-progress-table thead th{position:sticky;top:0;z-index:1;background:var(--du-surface,#fff);font-size:12px}
#mentalScreen .mm-progress-table tbody tr:last-child>*{border-bottom:0}
#mentalScreen .mm-fluency-bar{display:block;position:relative;height:3px;border-radius:3px;background:#7773;margin-top:9px;min-width:140px}
#mentalScreen .mm-fluency-bar>span{display:block;height:100%;border-radius:inherit;background:#b68b00}
#mentalScreen .mm-fluency-label[data-tone=fluent]{color:#15803d}
#mentalScreen .mm-fluency-label[data-tone=developing]{color:#8a6500}
html[data-duck-theme=dark] #mentalScreen :is(.mm-history,.mm-fluency){background:#000!important;border:1px solid #c6a93b!important;box-shadow:0 0 10px #facc1526!important}
html[data-duck-theme=dark] #mentalScreen .mm-history-stats>div,html[data-duck-theme=dark] #mentalScreen .mm-progress-table thead th{background:#000!important}
html[data-duck-theme=dark] #mentalScreen .mm-fluency-bar>span{background:#facc15;box-shadow:0 0 7px #facc1580}
html[data-duck-theme=dark] #mentalScreen .mm-fluency-label[data-tone=fluent]{color:#4ade80}
html[data-duck-theme=dark] #mentalScreen .mm-fluency-label[data-tone=developing]{color:#facc15}
@media(max-width:480px){#mentalScreen .mm-history-stats>div:last-child{grid-column:auto}}
/* Tables scroll inside their panels instead of widening the mobile workspace. */
#mentalScreen .mm-workspace>*{min-width:0}
#mentalScreen .mm-table-scroll{width:100%;box-sizing:border-box;min-width:0}
html[data-duck-theme=dark] body.duck-airy.duck-redesign #mentalScreen :is(.mm-history,.mm-fluency,.mm-history-stats>div){background:#000!important}
html[data-duck-theme=dark] body.duck-airy.duck-redesign #mentalScreen .mm-progress-table :is(th,td){background:#000!important;color:var(--du-ink,#fff)!important;border-color:#facc152e!important}
/* Coefficients remain individual, labelled fields within readable factors. */
#mentalScreen #mmCoefficients{display:flex;flex-wrap:wrap;align-items:center;gap:12px;width:100%;font-size:23px;line-height:1.8}
#mentalScreen .mm-factor-group{display:inline-flex;flex-wrap:wrap;align-items:center;gap:3px;max-width:100%}
#mentalScreen .mm-factor-term{display:inline-flex;align-items:center;gap:4px;white-space:nowrap}
html body.duck-airy #mentalScreen input.mm-coefficient{width:64px!important;min-width:0!important;padding:10px 4px!important;font-size:21px!important;text-align:center;border:1px solid var(--du-line,#ddd)!important;border-radius:10px;background:var(--du-bg,#fff)!important;color:var(--du-ink,#111)!important}
html body.duck-airy #mentalScreen input.mm-coefficient[aria-invalid=true]{border-color:#e07865!important}
#mentalScreen .mm-answer-row:has(#mmCoefficients:not([hidden])){display:flex;flex-wrap:wrap}
#mentalScreen .mm-answer-row:has(#mmCoefficients:not([hidden])) .mm-primary{margin-top:8px}
#mentalScreen .mm-modes{max-width:100%;box-sizing:border-box}
@media(max-width:480px){#mentalScreen .mm-modes button{flex:1 1 42%}#mentalScreen #mmCoefficients{font-size:20px}html body.duck-airy #mentalScreen input.mm-coefficient{width:52px!important;font-size:19px!important}}
#mentalScreen .mm-undefined{margin-top:12px;padding:10px 18px;border:1px solid var(--du-line,#ddd);border-radius:12px;background:var(--du-surface,#fff);color:var(--du-ink,#111);font:inherit;font-size:14px;font-weight:600;cursor:pointer}
html[data-duck-theme=dark] body.duck-airy.duck-redesign #mentalScreen .mm-undefined{background:#000!important;border-color:#b59c39!important;color:#fff!important}
html[data-duck-theme=dark] body.duck-airy.duck-redesign #mentalScreen .mm-undefined:hover{box-shadow:0 0 10px #facc1566!important}
html:not([data-duck-theme=dark]) #mentalScreen .mm-undefined:hover{background:var(--duck-gradient,#ffdd46)}
/* Open mental-maths workspace: controls above, no surrounding card frames. */
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout > .card{background:transparent!important;border:0!important;border-radius:0!important;box-shadow:none!important;padding:0!important}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-panel,.mm-settings,.mm-stats>div){background:transparent!important;border:0!important;border-radius:0!important;box-shadow:none!important}
#mentalScreen.mm-open-layout .studio-heading{justify-content:center;text-align:center;margin:0 0 22px!important;padding:0!important}
#mentalScreen.mm-open-layout .studio-heading h1{font-size:clamp(30px,3.4vw,46px)!important;letter-spacing:-1.5px!important;margin:0!important}
#mentalScreen.mm-open-layout .studio-eyebrow{display:none}
#mentalScreen.mm-open-layout .mm-layout{display:flex!important;flex-direction:column!important;gap:0!important;width:100%;margin:0!important;max-width:none!important}
#mentalScreen.mm-open-layout .mm-settings{align-self:center;width:min(1060px,100%);padding:0!important;box-sizing:border-box}
#mentalScreen.mm-open-layout .mm-settings-body{padding:0!important;text-align:center}
#mentalScreen.mm-open-layout .mm-settings h2,#mentalScreen.mm-open-layout .mm-settings p{display:none}
#mentalScreen.mm-open-layout .mm-settings .mm-label{margin:15px 0 8px;text-transform:uppercase;letter-spacing:1.6px;font-size:10px;color:var(--du-muted)}
#mentalScreen.mm-open-layout .mm-modes{background:transparent!important;justify-content:center;margin:0 auto 16px!important;padding:0!important;width:100%;gap:8px}
#mentalScreen.mm-open-layout .mm-filter-buttons{display:flex;flex-wrap:wrap;justify-content:center;gap:7px}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-filter-button,.mm-modes button,.mm-category>span){
 border:1px solid var(--du-line,#dedbd1)!important;border-radius:999px!important;background:transparent!important;color:var(--du-ink)!important;
 box-shadow:none!important;padding:9px 16px!important;font:inherit;font-size:13px!important;font-weight:550!important;line-height:1.3;cursor:pointer;
 transition:background .25s ease,border-color .25s ease,box-shadow .3s ease,color .25s ease!important;
}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-filter-button,.mm-modes button):not(:disabled):hover,
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-category:hover>span{border-color:#c7a331!important;background:var(--duck-gradient,#ffe78e)!important}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-filter-button,.mm-modes button)[aria-pressed=true],
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-category:has(input:checked)>span{background:var(--duck-gradient,#ffe78e)!important;border-color:#b3942f!important;color:#332707!important;font-weight:650!important}
html[data-duck-theme=dark] body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-filter-button,.mm-modes button):not(:disabled):hover,
html[data-duck-theme=dark] body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-category:hover>span{background:transparent!important;border-color:#d6b847!important;box-shadow:0 0 11px #ffdc5a42!important}
html[data-duck-theme=dark] body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-filter-button,.mm-modes button)[aria-pressed=true],
html[data-duck-theme=dark] body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-category:has(input:checked)>span{background:transparent!important;border-color:#d6b847!important;color:#ffe080!important;box-shadow:0 0 10px #ffdc5a30!important}
#mentalScreen.mm-open-layout :is(.mm-filter-button,.mm-modes button):disabled{opacity:.3;cursor:not-allowed}
#mentalScreen.mm-open-layout #mmCategories{display:flex!important;flex-wrap:wrap;justify-content:center;gap:7px!important;margin:14px 0 0!important}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-category{position:relative;display:inline-flex;padding:0!important;margin:0!important}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-category input{position:absolute!important;opacity:0;width:1px!important;height:1px!important;min-width:0!important;min-height:0!important;max-height:1px!important}
#mentalScreen.mm-open-layout .mm-category>span{display:block}
#mentalScreen.mm-open-layout .mm-category input:focus-visible+span{outline:2px solid #d2a700;outline-offset:3px}
#mentalScreen.mm-open-layout .mm-preferences{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin:18px 0 24px}
#mentalScreen.mm-open-layout .mm-preferences .mm-timer-setting{margin:0;font-size:12px;color:var(--du-muted)}
#mentalScreen.mm-open-layout .mm-workspace{width:min(1180px,100%);align-self:center;display:flex;flex-direction:column;gap:0}
#mentalScreen.mm-open-layout .mm-stats{width:min(780px,100%);align-self:center;gap:0;grid-template-columns:repeat(5,minmax(0,1fr));margin:10px auto 24px;text-align:center}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-stats>div{padding:8px 10px!important}
#mentalScreen.mm-open-layout .mm-stats span{font-size:23px;font-weight:600}
#mentalScreen.mm-open-layout .mm-stats p{font-size:11px;line-height:1.5;margin:5px 0 0}
html[data-duck-theme=dark] #mentalScreen.mm-open-layout .mm-stats span{color:#ffdc5a;text-shadow:0 0 9px #ffdc5a2a}
#mentalScreen.mm-open-layout .mm-question-card{padding:18px 0 22px!important;max-width:980px;align-self:center;width:100%;text-align:center}
#mentalScreen.mm-open-layout .mm-question-top{justify-content:center;gap:14px;letter-spacing:.4px}
#mentalScreen.mm-open-layout .mm-skill{background:transparent!important;border:0!important;padding:0;font-size:12px;color:var(--du-muted)}
#mentalScreen.mm-open-layout .mm-clock{margin-left:0}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout h2.mm-prompt{font-size:clamp(32px,4.8vw,64px)!important;line-height:1.3!important;margin:28px 0 16px!important;font-weight:550!important;letter-spacing:-1.6px!important}
#mentalScreen.mm-open-layout #mmAnswerHelp{font-size:12px;margin:0 0 28px}
#mentalScreen.mm-open-layout #mmAnswerForm{position:relative;max-width:800px;margin:0 auto;padding:0 0 12px;border-bottom:1px solid #b99b4659}
#mentalScreen.mm-open-layout #mmAnswerLabel{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
#mentalScreen.mm-open-layout .mm-answer-row{align-items:center;gap:12px;display:flex;flex-wrap:wrap}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout #mmAnswer{border:0!important;border-radius:0!important;box-shadow:none!important;background:transparent!important;padding:14px 6px!important;text-align:center;font-size:28px!important;flex:1 1 220px;color:var(--du-ink)!important}
#mentalScreen.mm-open-layout #mmAnswer::placeholder{color:var(--du-muted);opacity:.65;font-size:21px}
#mentalScreen.mm-open-layout #mmAnswer:is(:focus,:focus-visible){outline:none!important;box-shadow:none!important}
#mentalScreen.mm-open-layout #mmAnswerForm:focus-within{border-bottom-color:#b99b46}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-primary,.mm-sign,.mm-undefined){border:1px solid #b99b4677!important;border-radius:999px!important;background:transparent!important;color:var(--du-ink)!important;box-shadow:none!important;transition:border-color .25s,box-shadow .3s,background .25s!important;padding:10px 18px!important;width:auto}
html[data-duck-theme=dark] body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-primary,.mm-sign,.mm-undefined):hover{border-color:#d6b847!important;box-shadow:0 0 11px #ffdc5a42!important}
html:not([data-duck-theme=dark]) body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-primary,.mm-sign,.mm-undefined):hover{background:var(--duck-gradient,#ffe78e)!important}
#mentalScreen.mm-open-layout .mm-help-actions{justify-content:center}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-text-button:is(:hover,:focus){background:transparent!important;box-shadow:none!important;border-color:transparent!important;color:#b89627!important}
#mentalScreen.mm-open-layout .mm-feedback{margin:14px 0 7px;min-height:24px}
#mentalScreen.mm-open-layout #mmKeyboardHelp{margin:15px 0 0;font-size:11px}
#mentalScreen.mm-open-layout #mmCoefficients{justify-content:center;gap:10px}
#mentalScreen.mm-open-layout .mm-answer-row:has(#mmCoefficients:not([hidden])){justify-content:center}
#mentalScreen.mm-open-layout .mm-question-card.mm-correct-flash::after{display:none}
#mentalScreen.mm-open-layout .mm-question-card.mm-correct-flash #mmAnswerForm::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:#4ade80;box-shadow:0 0 16px #4ade8099;pointer-events:none;animation:mm-correct-glow 550ms ease-out forwards}
#mentalScreen.mm-open-layout .mm-lesson{align-self:center;width:min(800px,100%);box-sizing:border-box;text-align:center;padding:12px 20px 22px!important}
#mentalScreen.mm-open-layout :is(.mm-example,.mm-hint){background:transparent!important;border-radius:0!important;padding:12px!important}
#mentalScreen.mm-open-layout .mm-session-footer{margin:16px 0 40px;gap:16px;justify-content:center;text-align:center}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-history,.mm-fluency){padding:32px 0!important;border-top:1px solid var(--du-line)!important}
#mentalScreen.mm-open-layout :is(.mm-history,.mm-fluency) h2{font-size:24px!important;letter-spacing:-.5px!important}
#mentalScreen.mm-open-layout .mm-history-filters{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
#mentalScreen.mm-open-layout .mm-history-filter .mm-label{font-size:11px;text-transform:uppercase;letter-spacing:1.5px;margin:0 0 8px}
#mentalScreen.mm-open-layout .mm-history-filters .mm-filter-buttons{justify-content:flex-start}
#mentalScreen.mm-open-layout .mm-history-stats{grid-template-columns:repeat(4,minmax(0,1fr));max-width:none;width:100%;margin:22px 0;text-align:left}
html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-table-scroll{border:0!important;border-radius:0!important}
html[data-duck-theme=dark] body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-progress-table :is(th,td){background:var(--du-bg)!important}
@media(max-width:650px){
 #mentalScreen.mm-open-layout .mm-modes{gap:6px!important;margin-bottom:12px!important}
 #mentalScreen.mm-open-layout .mm-modes button{flex:0 1 auto!important}
 html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-modes button,.mm-filter-button,.mm-category>span){font-size:12px!important;padding:8px 12px!important;min-height:36px}
 #mentalScreen.mm-open-layout .mm-preferences{gap:14px;margin-bottom:14px}
 #mentalScreen.mm-open-layout .mm-stats{grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:16px}
 #mentalScreen.mm-open-layout .mm-stats>div:last-child{grid-column:auto}
 #mentalScreen.mm-open-layout .mm-question-card{padding-top:12px!important}
 #mentalScreen.mm-open-layout #mmAnswer{flex-basis:calc(100% - 70px)!important}
 #mentalScreen.mm-open-layout .mm-primary{flex:0 0 auto;display:block;margin:0 auto}
 #mentalScreen.mm-open-layout .mm-question-top{gap:9px;font-size:11px}
 #mentalScreen.mm-open-layout #mmAnswerHelp{margin-bottom:18px;line-height:1.6}
 #mentalScreen.mm-open-layout .mm-history-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(prefers-reduced-motion:reduce){
 html body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout :is(.mm-filter-button,.mm-modes button,.mm-category>span,.mm-primary,.mm-sign,.mm-undefined){transition:none!important}
}
/* Override the shared site-wide dark card rule within this open workspace only. */
html[data-duck-theme=dark] body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-layout .mm-workspace :is(.mm-panel,.mm-stats>div){background:transparent!important;border:0!important;box-shadow:none!important}
html[data-duck-theme=dark] body.duck-airy.duck-redesign.duck-fullpage #mentalScreen.mm-open-layout .mm-layout .mm-workspace :is(.mm-history,.mm-fluency){border-top:1px solid var(--du-line)!important}
#mentalScreen.mm-open-layout #mmCategories legend{float:left;width:100%;margin:0 0 8px;text-transform:uppercase;letter-spacing:1.6px;font-size:10px;font-weight:650;color:var(--du-muted)}

/* Keep the skill controls beneath the question in both visual and keyboard order. */
#mentalScreen.mm-open-layout .mm-skill-settings{margin:0 auto 8px}
#mentalScreen.mm-open-layout .mm-session-footer{width:100%;margin:8px 0 28px;justify-content:center}