.shell-main:has(.mpre-room){max-width:1200px}.mpre-room{--mpre-paper:var(--surface);--mpre-hairline:var(--border);color:var(--text);padding-bottom:70px}.mpre-room button,.mpre-room a,.mpre-start-dialog button,.mpre-luna-dialog button{-webkit-tap-highlight-color:transparent}.mpre-room button:focus-visible,.mpre-room a:focus-visible,.mpre-start-dialog :focus-visible,.mpre-luna-dialog :focus-visible{outline:2px solid var(--accent);outline-offset:4px}.mpre-room button:disabled{opacity:.48;cursor:not-allowed}.mpre-room-top{border-bottom:1px solid var(--mpre-hairline);justify-content:space-between;align-items:center;gap:18px;padding:8px 0;display:flex}.mpre-back,.mpre-text-button{color:var(--text-dim);font:inherit;cursor:pointer;background:0 0;border:0;align-items:center;gap:8px;min-height:44px;padding:5px 0;font-size:13px;text-decoration:none;display:inline-flex}.mpre-back:hover,.mpre-text-button:hover{color:var(--accent)}.mpre-room-label,.mpre-eyebrow{letter-spacing:1.5px;color:var(--text-muted);font-size:10px;font-weight:650;line-height:1.6;display:block}.mpre-private{color:var(--text-muted);font-size:11px}.mpre-welcome{grid-template-columns:1.7fr 1fr;align-items:center;gap:70px;padding:54px 0 44px;display:grid}.mpre-welcome h1{letter-spacing:-1.7px;margin:12px 0 20px;font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:clamp(38px,4.3vw,56px);font-weight:400;line-height:1.12}.mpre-welcome h1 em{color:var(--text-muted);font-style:normal}.mpre-welcome p{max-width:470px;color:var(--text-dim);font-size:14px;line-height:1.8}.mpre-welcome-note{border-left:1px solid var(--mpre-hairline);justify-items:start;gap:12px;padding:28px;display:grid}.mpre-welcome-note>span{letter-spacing:1.3px;color:var(--text-muted);font-size:9px}.mpre-welcome-note>svg{color:var(--accent);margin:5px 0}.mpre-welcome-note strong{font:400 23px/1.3 Georgia,serif;display:block}.mpre-welcome-note p{font-size:13px}.mpre-welcome-note>div{padding:10px 0}.mpre-welcome-note>div>svg{float:left;color:var(--accent);margin:3px 12px 8px 0}.mpre-collection-head{border-top:1px solid var(--mpre-hairline);justify-content:space-between;align-items:center;gap:16px;padding:24px 0;display:flex}.mpre-collection-head h2{letter-spacing:-.4px;margin-bottom:4px;font-size:18px}.mpre-collection-head p{color:var(--text-muted);font-size:12px}.mpre-preserved{color:var(--text-muted);align-items:center;gap:6px;font-size:11px;display:inline-flex}.mpre-set-list{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:34px;display:grid}.mpre-set{border-bottom:1px solid var(--mpre-hairline);align-items:center;gap:18px;min-height:142px;padding:28px 0;display:flex}.mpre-set-number{color:var(--text-muted);align-self:start;padding-top:11px;font:30px/1 Georgia,serif}.mpre-set-copy{flex:1;min-width:0}.mpre-set-copy .mpre-eyebrow{letter-spacing:1.2px;font-size:9px}.mpre-set-copy h3{margin:6px 0;font-size:16px;font-weight:550;line-height:1.45}.mpre-set-copy p{color:var(--text-muted);font-size:12px}.mpre-set-copy p span{padding:0 5px}.mpre-set-actions{align-items:center;gap:10px;display:flex}.mpre-set-actions .mpre-text-button{font-size:11px}.mpre-round-button,.mpre-icon{border:1px solid var(--border);min-width:44px;min-height:44px;color:var(--text);cursor:pointer;background:0 0;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.mpre-round-button:hover{background:var(--surface-hover);border-color:var(--accent)}.mpre-icon{border:0;border-radius:5px}.mpre-icon:hover{background:var(--surface-hover)}.mpre-source-note{color:var(--text-muted);margin-top:32px;font-size:10px;line-height:1.9}.mpre-test-title{justify-content:space-between;align-items:center;gap:24px;padding:10px 0 14px;display:flex}.mpre-test-title>div{flex-wrap:wrap;align-items:center;column-gap:20px;min-width:0;display:flex}.mpre-test-status{flex-shrink:0}.mpre-test-title h1{letter-spacing:-.4px;font-size:21px;font-weight:550;line-height:1.3}.mpre-clock,.mpre-score{font-variant-numeric:tabular-nums;color:var(--text-dim);white-space:nowrap;align-items:center;gap:8px;font-size:15px;display:inline-flex}.mpre-clock.is-low{color:var(--danger)}.mpre-workspace{grid-template-columns:minmax(0,1fr) 220px;align-items:start;gap:24px;display:grid}.mpre-question-column{min-width:0}.mpre-question-paper{background:var(--mpre-paper);border:1px solid var(--mpre-hairline);border-radius:5px;padding:10px 30px 12px}.mpre-question-top{border-bottom:1px solid var(--mpre-hairline);justify-content:space-between;align-items:center;gap:20px;margin-bottom:16px;padding-bottom:2px;display:flex}.mpre-flag{color:var(--text-muted);font:inherit;cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;min-height:44px;font-size:11px;display:inline-flex}.mpre-stem{letter-spacing:-.1px;margin-bottom:20px;font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-size:18px;line-height:1.85}.mpre-stem p{margin-bottom:20px}.mpre-choices{border:0;gap:8px;min-width:0;margin:0 0 14px;display:grid}.mpre-choice{border:1px solid var(--mpre-hairline);cursor:pointer;background:0 0;border-radius:4px;grid-template-columns:29px minmax(0,1fr) 18px;align-items:start;gap:12px;padding:11px 14px;transition:border-color .15s,background .15s;display:grid;position:relative}.mpre-choice input{opacity:0;width:1px;height:1px;position:absolute}.mpre-choice:has(input:focus-visible){outline:2px solid var(--accent);outline-offset:3px}.mpre-choice:hover{background:var(--choice-bg-hover)}.mpre-choice-letter{border:1px solid var(--mpre-hairline);width:27px;height:27px;color:var(--text-dim);border-radius:50%;justify-content:center;align-items:center;margin-top:1px;font-size:11px;font-weight:600;display:flex}.mpre-choice .mpre-source{font-size:15px;line-height:1.6}.mpre-choice.is-selected{border-color:var(--accent);background:var(--tutor-user-bg)}.mpre-choice.is-selected .mpre-choice-letter{color:#fff;border-color:var(--accent);background:var(--accent)}.mpre-choice.is-correct{border-color:var(--success);background:var(--success-bg)}.mpre-choice.is-incorrect{border-color:var(--danger);background:var(--danger-bg)}.mpre-choice.is-correct .mpre-choice-letter{color:#fff;background:#116e50;border-color:#116e50}.mpre-choice-check{color:var(--success);align-self:center}.mpre-choice-check>span{background:var(--accent);border-radius:50%;width:7px;height:7px;display:block}.mpre-choices:disabled .mpre-choice{cursor:default}.mpre-question-foot{border-top:1px solid var(--mpre-hairline);justify-content:space-between;align-items:center;gap:15px;margin-top:16px;padding-top:4px;display:flex}.mpre-question-foot>span{color:var(--text-muted);font-size:12px}.mpre-primary,.mpre-secondary{border:1px solid var(--border);background:var(--surface);min-height:44px;color:var(--text);font:inherit;cursor:pointer;border-radius:4px;justify-content:center;align-items:center;gap:9px;padding:10px 17px;font-size:12px;font-weight:550;display:inline-flex}.mpre-primary{color:#fff;background:#4353e0;border-color:#0000}.mpre-primary:hover{filter:brightness(1.08)}.mpre-secondary:hover{background:var(--surface-hover)}.mpre-question-nav{justify-content:space-between;align-items:center;gap:12px;padding:20px 0;display:flex}.mpre-question-nav>span{color:var(--text-muted);font-size:11px}.mpre-test-sidebar{gap:18px;display:grid;position:sticky;top:16px}.mpre-map{border:1px solid var(--mpre-hairline);border-radius:4px;padding:21px}.mpre-map-heading{justify-content:space-between;align-items:center;gap:10px;display:flex}.mpre-map-heading h2{font-size:12px;font-weight:600}.mpre-map-heading>span{color:var(--text-muted);font-size:10px}.mpre-map-progress{background:var(--border);height:3px;margin:16px 0 20px}.mpre-map-progress>span{background:var(--accent);height:3px;transition:width .2s;display:block}.mpre-map-grid{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.mpre-map-grid button{border:1px solid var(--border);min-height:37px;color:var(--text-muted);font:inherit;cursor:pointer;background:0 0;border-radius:3px;font-size:11px;position:relative}.mpre-map-grid button.is-answered{background:var(--tutor-user-bg);color:var(--text)}.mpre-map-grid button.is-current{border-color:var(--accent);color:var(--text);box-shadow:0 0 0 1px var(--accent)}.mpre-map-grid button.is-flagged>span{background:var(--warning);border-radius:50%;width:4px;height:4px;position:absolute;top:4px;right:4px}.mpre-map-hint{color:var(--text-muted);margin-top:15px;font-size:12px;line-height:1.8}.mpre-submit-test{width:100%;margin-top:17px;padding:8px;font-size:11px}.mpre-tutor-card{text-align:left;background:var(--surface);border:1px solid var(--mpre-hairline);color:var(--text);cursor:pointer;border-radius:4px;gap:10px;padding:23px;display:grid}.mpre-tutor-moon{color:var(--accent);font:33px/1 Georgia,serif}.mpre-tutor-card strong{font:400 20px/1.4 Georgia,serif}.mpre-tutor-card>span:not(.mpre-tutor-moon){color:var(--text-muted);font-size:11px;line-height:1.7}.mpre-tutor-card .mpre-tutor-link{align-items:center;gap:8px;margin-top:8px;display:inline-flex;color:var(--accent)!important}.mpre-explanation{border:1px solid var(--mpre-hairline);border-top:2px solid var(--success);background:var(--mpre-paper);border-radius:3px;margin-top:16px;padding:22px 30px}.mpre-explanation-head{border-bottom:1px solid var(--mpre-hairline);justify-content:space-between;align-items:center;gap:24px;margin-bottom:16px;padding-bottom:14px;display:flex}.mpre-explanation-head h2{margin-top:5px;font:400 24px/1.3 Georgia,serif}.mpre-explanation-head>svg{color:var(--success)}.mpre-explanation-tools{border-top:1px solid var(--mpre-hairline);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:24px;padding-top:24px;display:flex}.mpre-explanation-tools .mpre-text-button{font-size:11px}.mpre-result-strip{background:var(--surface);border-left:2px solid var(--accent);align-items:center;gap:30px;margin-bottom:16px;padding:12px 22px;display:flex}.mpre-result-strip strong{margin-top:4px;font:26px/1.2 Georgia,serif;display:block}.mpre-result-strip p{color:var(--text-dim);max-width:440px;font-size:12px;line-height:1.8}.dialog.mpre-start-dialog{border-radius:6px;width:min(560px,100%);max-width:560px;padding:30px}.mpre-dialog-top{justify-content:space-between;align-items:center;gap:12px;display:flex}.mpre-start-dialog h2{margin:13px 0;font:400 29px/1.3 Georgia,serif}.mpre-start-dialog>p{color:var(--text-muted);font-size:12px;line-height:1.8}.mpre-mode-options{border:0;grid-template-columns:1fr 1fr;gap:13px;margin:24px 0;display:grid}.mpre-mode-options label{border:1px solid var(--border);cursor:pointer;border-radius:4px;gap:12px;padding:21px;display:grid;position:relative}.mpre-mode-options label.is-selected{border-color:var(--accent);background:var(--tutor-user-bg)}.mpre-mode-options input{accent-color:var(--accent);position:absolute;top:19px;right:15px}.mpre-mode-options label>svg{color:var(--accent)}.mpre-mode-options label>strong{font-size:13px}.mpre-mode-options label>span{color:var(--text-dim);font-size:11px;line-height:1.8}.mpre-finish-actions{justify-content:flex-end;gap:12px;margin-top:25px;display:flex}.mpre-luna-panel{background:var(--surface);color:var(--text);flex-direction:column;display:flex;overflow:hidden}.dialog.mpre-luna-dialog{border-radius:6px;flex-direction:column;width:min(680px,100%);max-width:680px;height:min(800px,92dvh);padding:0;display:flex;overflow:hidden}.mpre-luna-heading{border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:10px 12px 10px 18px;display:flex}.mpre-luna-title{flex:1;min-width:0}.mpre-luna-panel .mpre-luna-title h2:focus{outline:none}.mpre-luna-heading h2{white-space:nowrap;font:400 21px/1.2 Georgia,serif}.mpre-luna-heading p{color:var(--text-muted);margin-top:2px;font-size:12px;line-height:1.4}.mpre-luna-orbit{color:var(--accent);margin-right:4px;font:27px/1 Georgia,serif}.mpre-icon.is-active{background:var(--surface-hover);color:var(--accent)}.mpre-luna-settings{border-bottom:1px solid var(--border);background:var(--bg);gap:14px;padding:14px 18px 16px;display:grid}.mpre-luna-settings[hidden]{display:none}.mpre-luna-settings .tutor-setting{gap:6px}.mpre-luna-settings .tutor-setting>label,.mpre-luna-settings .tutor-setting>legend{color:var(--text-dim);margin-bottom:0;font-size:13px;font-weight:600}.mpre-luna-settings .tutor-effort .radio{padding:8px 14px;font-size:14px}.mpre-luna-transcript-wrap{flex-direction:column;flex:1;min-height:0;display:flex}.mpre-luna-messages{overflow-anchor:none;flex:1;min-height:0;padding:6px 22px 52px;overflow:auto}.mpre-luna-messages:focus-visible{outline:2px solid var(--accent);outline-offset:-3px}.mpre-luna-more-slot{color:var(--text-muted);flex:0 0 28px;justify-content:flex-end;align-items:center;padding:0 20px;font-size:12px;display:flex}.mpre-luna-more-slot>span{visibility:hidden}.mpre-luna-more-slot>.is-visible{visibility:visible}.mpre-luna-intro{max-width:340px;color:var(--text-muted);margin:35px auto}.mpre-luna-intro svg{color:var(--accent)}.mpre-luna-intro h3{color:var(--text);margin:17px 0 12px;font:400 27px/1.3 Georgia,serif}.mpre-luna-intro p{font-size:13px;line-height:1.9}.mpre-luna-turn{border-bottom:1px solid var(--border-subtle);padding:16px 0}.mpre-luna-turn>span{color:var(--text-muted);letter-spacing:1px;text-transform:uppercase;font-size:11px;font-weight:650}.mpre-luna-turn>p{white-space:pre-wrap;margin-top:6px;font-size:15px;line-height:1.7}.mpre-luna-turn.user>p{color:var(--text-dim)}.mpre-luna-compose{border-top:1px solid var(--border);grid-template-columns:minmax(0,1fr) auto;align-items:stretch;gap:10px;padding:14px 18px;display:grid}.mpre-luna-compose textarea{box-sizing:border-box;resize:none;width:100%;font:inherit;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:4px;height:48px;min-height:48px;padding:12px;font-size:15px;line-height:22px}.mpre-luna-compose textarea:focus-visible{outline:2px solid var(--accent);outline-offset:1px;border-color:#0000}.mpre-luna-compose .mpre-primary{box-sizing:border-box;white-space:nowrap;justify-content:center;height:48px;min-height:48px;padding:12px 16px}.mpre-luna-compose textarea::placeholder{color:var(--text-muted);opacity:1}.mpre-muted,.mpre-loading{color:var(--text-muted);padding:16px 0;font-size:14px}.mpre-error{color:var(--danger);background:var(--danger-bg);border-left:2px solid var(--danger);margin:16px 0;padding:14px 18px;font-size:12px;line-height:1.8}.mpre-entry{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);width:100%;color:var(--text);cursor:pointer;text-align:left;border-radius:4px;align-items:center;gap:18px;margin:20px 0 25px;padding:23px 26px;display:flex}.mpre-entry:hover{background:var(--surface-hover)}.mpre-entry>span:nth-child(2){flex:1}.mpre-entry strong{margin:5px 0;font:400 25px/1.35 Georgia,serif;display:block}.mpre-entry>span:nth-child(2)>span:last-child{color:var(--text-muted);font-size:12px;line-height:1.6}.mpre-entry-mark{color:var(--accent)}:root[data-theme=light] .mpre-room{--mpre-paper:#fffefa;--mpre-hairline:#dddfe6}:root[data-theme=light] .mpre-question-paper,:root[data-theme=light] .mpre-explanation{box-shadow:0 3px 16px #18253005}@media (width<=900px){.mpre-workspace{grid-template-columns:minmax(0,1fr) 185px;gap:18px}.mpre-question-paper,.mpre-explanation{padding-left:25px;padding-right:25px}.mpre-map{padding:15px}.mpre-map-grid{gap:5px}.mpre-set-list{column-gap:25px}}@media (width<=700px){.mpre-room-top{gap:10px;padding:2px 0}.mpre-room-label{letter-spacing:1px;font-size:8px}.mpre-private{display:none}.mpre-welcome{grid-template-columns:1fr;gap:24px;padding:30px 0}.mpre-welcome h1{letter-spacing:-1px;font-size:39px}.mpre-welcome-note,.mpre-preserved{display:none}.mpre-set-list{grid-template-columns:1fr}.mpre-set{min-height:123px;padding:24px 0}.mpre-set-actions .mpre-text-button{display:inline-flex}.mpre-workspace{flex-direction:column;gap:10px;display:flex}.mpre-question-column{width:100%}.mpre-test-sidebar,.mpre-tutor-card{display:none}.mpre-map-grid{grid-template-columns:repeat(6,1fr)}.mpre-map-grid button{min-height:44px}.mpre-question-paper{padding:8px 18px 9px}.mpre-question-top{margin-bottom:14px;padding-bottom:2px}.mpre-stem{font-size:17px;line-height:1.85}.mpre-choice{grid-template-columns:25px minmax(0,1fr) 15px;gap:9px;padding:14px 11px}.mpre-choice .mpre-source{font-size:13px}.mpre-choice-letter{width:24px;height:24px}.mpre-question-foot{flex-wrap:wrap;gap:0}.mpre-question-foot>span{font-size:11px}.mpre-test-title{align-items:end;gap:14px;padding:6px 0 12px}.mpre-test-title h1{font-size:19px}.mpre-clock{font-size:13px}.mpre-question-nav{padding:20px 0;position:static}.mpre-question-nav>button{padding:10px 13px;font-size:11px}.mpre-question-nav>span{font-size:10px}.mpre-explanation{padding:24px 18px}.mpre-explanation-tools{gap:9px}.mpre-result-strip{gap:20px;padding:12px 16px}.mpre-result-strip p{font-size:11px}.mpre-mode-options{grid-template-columns:1fr}.mpre-mode-options label{gap:10px;padding:20px}.dialog.mpre-start-dialog{padding:24px}.mpre-start-dialog h2{font-size:25px}.mpre-luna-heading{padding:8px 8px 8px 16px}.mpre-luna-heading h2{font-size:20px}.mpre-luna-messages{padding:4px 16px}.mpre-luna-compose{padding:10px 10px calc(10px + env(safe-area-inset-bottom,0px)) 16px}.dialog.mpre-luna-dialog textarea{font-size:16px}.mpre-entry{gap:13px;padding:19px}.mpre-entry strong{font-size:22px}.mpre-entry .mpre-eyebrow{letter-spacing:1px;font-size:8px}}@media (prefers-reduced-motion:reduce){.mpre-room *,.mpre-start-dialog *,.mpre-luna-dialog *{scroll-behavior:auto!important;transition:none!important}}.mpre-collection-actions{align-items:center;gap:22px;display:flex}.mpre-bank{max-width:820px;margin:25px auto}.mpre-bank-heading{justify-content:space-between;align-items:center;gap:25px;padding:20px 0 30px;display:flex}.mpre-bank-heading h1{letter-spacing:-.6px;margin:10px 0;font:400 35px/1.3 Georgia,serif}.mpre-bank-heading p,.mpre-bank-heading>span{color:var(--text-muted);font-size:12px;line-height:1.8}.mpre-bank-heading>span{white-space:nowrap}.mpre-bank-empty{border-top:1px solid var(--border);text-align:center;padding:50px 30px}.mpre-bank-empty h2{margin:20px 0 12px;font:400 27px/1.3 Georgia,serif}.mpre-bank-empty>p{color:var(--text-muted);max-width:420px;margin:0 auto 25px;font-size:13px;line-height:1.8}.mpre-bank-choices{gap:10px;margin:24px 0;display:grid}.mpre-bank-choices>.mpre-choice{cursor:default;grid-template-columns:29px 1fr}@media (width<=700px){.mpre-collection-actions{gap:0}.mpre-bank-heading{display:block}.mpre-bank-heading h1{font-size:30px}.mpre-bank-heading>span{margin-top:12px;display:block}}.app.app-mpre{max-width:1200px;padding-top:8px}@media (width<=700px){.app.app-mpre{padding-top:8px}}.mpre-mobile-toolbar{display:none}.mpre-question-picker{min-height:44px;color:var(--text);font:inherit;cursor:pointer;background:0 0;border:0;justify-content:center;align-items:center;gap:6px;padding:9px;font-size:12px;display:inline-flex}.mpre-start-set{min-height:44px;color:var(--accent);border:1px solid var(--border);font:inherit;cursor:pointer;white-space:nowrap;background:0 0;border-radius:4px;justify-content:center;align-items:center;gap:7px;padding:9px 12px;font-size:12px;display:inline-flex}.mpre-start-set:hover{background:var(--surface-hover);border-color:var(--accent)}.mpre-map-count{color:var(--text-muted);margin-top:8px;font-size:12px}.mpre-map-grid button>svg{color:var(--warning);position:absolute;top:3px;right:3px}.mpre-map-grid button.is-correct{background:var(--success-bg);color:var(--text);border-color:var(--success)}.mpre-map-grid button.is-incorrect{background:var(--danger-bg);color:var(--text);border-color:var(--danger)}.mpre-choice-feedback{color:var(--text);grid-column:2/-1;font-size:12px;font-weight:550;line-height:1.5}.mpre-choice.is-incorrect .mpre-choice-check{color:var(--danger)}.mpre-choice.is-incorrect .mpre-choice-letter{color:#fff;background:var(--danger);border-color:var(--danger)}.mpre-source-reference{color:var(--text-muted);margin:-6px 0 22px;font-size:12px}.mpre-stem,.mpre-choices{max-width:720px;margin-left:auto;margin-right:auto}.mpre-explanation>.mpre-source{max-width:70ch;margin-left:auto;margin-right:auto;font-size:15px;line-height:1.85}.mpre-question-paper h2{scroll-margin-top:90px}.dialog.mpre-help-dialog,.dialog.mpre-jump-dialog{width:min(520px,100%);max-width:520px;padding:28px}.mpre-help-moon{color:var(--accent);margin-top:10px;font:37px/1 Georgia,serif;display:block}.mpre-help-dialog h2{margin:17px 0;font:400 28px/1.3 Georgia,serif}.mpre-help-dialog 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