/* Editorial course guides: shared geometry, typography and a focused visual stage. */
:root{--hub-bg:#f3f3ed;--hub-panel:#fcfcf8;--hub-ink:#172723;--hub-muted:#59655f;--hub-line:#ced5cd;--hub-soft:#e7ebe3;--hub-focus:#00766c}
:root[data-theme=dark]{--hub-bg:#101b18;--hub-panel:#172520;--hub-ink:#f0f3e9;--hub-muted:#b6c4ba;--hub-line:#35483f;--hub-soft:#21372c;--hub-focus:#a6e1ce}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--hub-bg:#101b18;--hub-panel:#172520;--hub-ink:#f0f3e9;--hub-muted:#b6c4ba;--hub-line:#35483f;--hub-soft:#21372c;--hub-focus:#a6e1ce}}
body.editorial{--bg:var(--hub-bg);--tile:var(--hub-panel);--ink:var(--hub-ink);--ink2:var(--hub-muted);--line:var(--hub-line);--hero-result:#b65157;background:var(--hub-bg);color:var(--hub-ink)}
.editorial[data-course=cen100]{--accent:#edbba7;--accent-ink:#3a251e;--strong:#954424;--sign:#edbba7}
.editorial[data-course=mth140]{--accent:#b9dfc9;--accent-ink:#16382e;--strong:#096450;--field:#d4ecdf}
.editorial[data-course=mth141]{--accent:#d3c3ee;--accent-ink:#342345;--strong:#694392;--field:#e7ddf2}
:root[data-theme=dark] .editorial{--strong:var(--accent);--hero-result:#f0b3be}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .editorial{--strong:var(--accent);--hero-result:#f0b3be}}
body.editorial .hub-shell,body.editorial .wrap,body.editorial .math-wrap{max-width:1240px;padding-inline:32px}
.editorial .hub-shell{padding-top:24px}
.editorial .hub-top{margin-bottom:22px}
.editorial .hub-brand{font-weight:750;font-size:.94rem;letter-spacing:-.035em}
.editorial .hub-brand small{font-size:.64rem;letter-spacing:.08em;text-transform:uppercase;font-weight:550}
.editorial .hub-mark{width:34px;height:34px;border:0;border-radius:0;background:var(--hub-ink);color:var(--hub-bg);font-size:25px}
.editorial .hub-theme{border-radius:2px;background:transparent;min-height:44px;font-size:.75rem}
.editorial .course-switch{display:flex;gap:0;border-block:1px solid var(--hub-line)}
.editorial .course-link{flex:1;display:grid;grid-template-columns:auto 1fr;gap:4px 10px;padding:16px 0;border:0;border-radius:0;background:transparent;box-shadow:none!important;overflow:visible;align-items:baseline}
.editorial .course-link+.course-link{padding-left:24px;border-left:1px solid var(--hub-line)}
.editorial .course-code{font-size:.76rem;letter-spacing:.04em}
.editorial .course-name{font-size:.76rem;line-height:1.35}
.editorial .course-saved{grid-column:1/-1;min-height:0;font-size:.64rem}
.editorial .course-saved:empty{display:none}
.editorial .course-link[aria-current]:after{content:'';position:absolute;height:3px;bottom:-1px;left:0;right:0;background:var(--strong)}
.editorial .course-link[aria-current] .course-code{color:var(--strong)}
.editorial .course-heading{position:relative;grid-template-columns:minmax(0,1.38fr) minmax(0,1fr);gap:42px;min-height:390px;padding:48px 0 42px;align-items:center}
.hero-copy{position:relative;min-width:0}
.editorial .course-heading .eyebrow,.editorial .circuit-head .team{font-size:.68rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;margin:0 0 21px;color:var(--hub-muted)}
.editorial .course-heading h1{font-size:clamp(3.5rem,7.4vw,6.6rem);font-weight:650;font-variation-settings:"wdth" 83;line-height:.94;letter-spacing:-.065em;max-width:8.8ch;text-wrap:balance;overflow-wrap:normal}
.editorial .hero-caption{font:400 clamp(1.08rem,2vw,1.45rem)/1.4 Georgia,serif;letter-spacing:-.025em;margin:20px 0 0;color:var(--hub-ink)}
.editorial .course-heading .hero-organization{font-size:.7rem;line-height:1.6;margin:8px 0 0;max-width:52ch}
.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:25px}
.hero-link,.hero-secondary{display:inline-flex;align-items:center;justify-content:space-between;gap:24px;font-size:.74rem;font-weight:650;min-height:44px;text-decoration:none}
.hero-link{padding:10px 14px;background:var(--hub-ink);color:var(--hub-bg);border:1px solid var(--hub-ink)}
.hero-secondary{color:var(--hub-ink);border-bottom:1px solid var(--hub-line);gap:12px}
.hero-figure{min-width:0;border:1px solid var(--hub-line);background:var(--hub-panel);color:var(--strong);position:relative}
.hero-figure:before,.hero-figure:after{content:'+';position:absolute;color:var(--hub-muted);font:14px ui-monospace,monospace;line-height:1;top:-8px;background:var(--hub-bg)}
.hero-figure:before{left:-5px}.hero-figure:after{right:-5px}
.hero-figure-label,.hero-figure-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;font:500 .59rem/1.4 ui-monospace,monospace;letter-spacing:.04em;color:var(--hub-muted);padding:14px 16px}
.hero-figure-label{border-bottom:1px solid var(--hub-line)}
.hero-figure-label>span:last-child{font-size:1rem;color:var(--strong)}
.hero-figure svg{width:100%;height:auto;display:block}
.hero-grid{stroke:var(--hub-line);stroke-width:.65;fill:none;opacity:.65}
.hero-axis{stroke:var(--hub-muted);stroke-width:1;fill:none;opacity:.55}
.hero-curve{stroke:var(--strong);stroke-width:3;fill:none}
.hero-tangent{stroke:var(--hero-result);stroke-width:2;fill:none}
.hero-guide{stroke:var(--hub-muted);stroke-width:1;stroke-dasharray:3 5;fill:none}
.hero-halo{fill:var(--hero-result);opacity:.15}.hero-point{fill:var(--hero-result);stroke:var(--hub-panel);stroke-width:2}
.hero-orbit{stroke:var(--strong);stroke-width:1;stroke-dasharray:3 6;fill:none;opacity:.4}
.hero-arc{stroke:var(--strong);stroke-width:1.5;fill:none}
.hero-formula{font:italic 29px Georgia,serif;fill:var(--strong)}
.hero-note{font:13px ui-monospace,monospace;fill:var(--hub-muted)}
.hero-figure-foot{border-top:1px solid var(--hub-line);font-size:.57rem;letter-spacing:0}
.hero-figure-foot strong{font:italic 1.15rem Georgia,serif;color:var(--strong)}
body.editorial .circuit-head{padding:48px 0 42px;min-height:360px;display:flex;align-items:center;border-bottom:0}
body.editorial .circuit-head h1{font-size:clamp(3.8rem,9vw,8.2rem);font-variation-settings:"wdth" 78;font-weight:650;text-transform:none;letter-spacing:-.065em;line-height:.95;max-width:none;text-wrap:initial}
.hero-pretitle{display:block;font-size:.4em;line-height:1.2;letter-spacing:-.035em;margin-bottom:8px}
body.editorial .circuit{width:61%;opacity:.75;mask-image:linear-gradient(90deg,transparent,#000 85%);-webkit-mask-image:linear-gradient(90deg,transparent,#000 85%)}
.editorial .circuit-head .head-next{padding:0;background:transparent;border-radius:0;font-size:.74rem;margin-top:15px}
.editorial .circuit-head .hero-actions{margin-top:15px}
.guide-dock{display:flex;align-items:center;justify-content:space-between;gap:12px;border-block:1px solid var(--hub-line);padding:9px 0;margin:0 0 18px}
.guide-dock button{font:650 .73rem Archivo,system-ui,sans-serif;min-height:44px;min-width:44px;display:flex;gap:9px;align-items:center;justify-content:center;border:0;border-radius:3px;background:transparent;color:var(--hub-ink);cursor:pointer;padding:8px 12px}
.guide-dock .dock-all{justify-content:flex-start;padding-left:0;gap:12px}
.dock-symbol{font-size:1.35rem;font-weight:400;color:var(--strong)}
.dock-toggle{width:20px;font-size:1.05rem;color:var(--hub-muted)}
.dock-shortcuts{display:flex;align-items:center;gap:8px}
.dock-shortcuts svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.3;flex:none}
.guide-dock button[aria-expanded=true]{color:var(--strong)}
body.editorial .top-toolkit{margin:0;border:0;border-radius:0;background:transparent;box-shadow:none;overflow:visible}
body.editorial .top-toolkit:not([open]){display:none}
body.editorial .top-toolkit[open]{margin:-18px 0 22px;border:1px solid var(--hub-line);border-top:0;background:var(--hub-panel)}
body.editorial .top-toolkit>summary[hidden]{display:none!important}
body.editorial .top-toolkit>.tools-body,body.editorial .top-toolkit>.tool-content{border:0;padding:12px 20px 20px}
.editorial .section-panel,.editorial .profile-picker{border-radius:0;background:transparent;border:0;border-bottom:1px solid var(--hub-line);padding:0 0 18px;margin:0 0 24px}
.editorial .section-control label,.editorial .section-brief,.editorial .profile-picker>summary{font-size:.8rem}
.editorial .section-control select{font-size:.8rem;background:var(--hub-panel);border-radius:3px}
.editorial .next-layout,.editorial .cen-next-layout{gap:0;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);margin:0 0 40px;border:1px solid var(--hub-line);background:var(--hub-panel)}
.editorial .next-assessment,.editorial .cen-next-layout .next{border:0;border-radius:0;padding:26px 30px;background:var(--accent);color:var(--accent-ink);box-shadow:none}
.editorial .next-assessment h2{font-size:2.1rem;font-weight:650;letter-spacing:-.05em}
.editorial .next-assessment .eyebrow{font-size:.65rem;letter-spacing:.09em}
.editorial .next-assessment .when{font-size:.9rem;margin-bottom:12px}
.editorial .next-scope,.editorial .next-note{font-size:.8rem;line-height:1.55}
.editorial .countdown strong{font-weight:550;font-variation-settings:"wdth" 90;font-size:3.1rem;letter-spacing:-.05em}
.editorial .next-assessment button{border-radius:2px;font-size:.75rem}
.editorial .after-next,.editorial .cen-next-layout .board{border:0;border-radius:0;background:transparent;padding:24px 26px}
.editorial .cen-next-layout .board{color:var(--hub-ink)}
.editorial .cen-next-layout .dep{border-color:var(--hub-line)}
.editorial .cen-next-layout .dep .d{color:var(--strong);font:550 .76rem/1.4 ui-monospace,monospace}
.editorial .cen-next-layout .dep .c{color:var(--hub-muted);opacity:1}
.editorial .cen-next-layout .next .lbl{border-radius:2px;font-size:.65rem;letter-spacing:.07em;background:transparent;color:var(--accent-ink);padding:0}
.editorial .cen-next-layout .next .t{font-weight:650;letter-spacing:-.04em}
.editorial .cen-next-layout .next .big{font-weight:600;font-variation-settings:"wdth" 85;font-size:3rem;letter-spacing:-.04em}
.editorial .after-next h2{font-size:.65rem;letter-spacing:.1em;text-transform:uppercase;color:var(--hub-muted);font-weight:650}
.editorial .after-list b{font-size:.88rem}.editorial .after-list small{font-size:.74rem}
.editorial .after-list time{font:500 .72rem/1.4 ui-monospace,monospace}
.editorial .semester-rail{border:0;border-top:1px solid var(--hub-line);border-bottom:1px solid var(--hub-line);border-radius:0;padding:26px 0;margin:40px 0;background:transparent}
.section-kicker{display:block;font:500 .63rem/1.5 ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--hub-muted);margin:0 0 13px}
.editorial .rail-heading h2{font-size:1.65rem;font-weight:600;letter-spacing:-.04em}
.editorial .rail-week{border-radius:2px;flex:1 0 65px;font-size:.65rem;min-height:85px}
.editorial .rail-week.today-week:after{border-radius:0;background:var(--accent);color:var(--accent-ink)}
.editorial .rail-week[aria-pressed=true]{background:var(--hub-ink);color:var(--hub-bg)}
.editorial .rail-event{border-radius:2px;background:var(--hub-soft)}
.editorial .quick-find{margin:32px 0 20px}
.editorial .quick-find input[type=search]{border-radius:2px;background:var(--hub-panel)}
.editorial .quick-find>label:first-child{font-size:.8rem}
.editorial .quick-link{border-radius:2px;background:transparent;font-size:.75rem}
.editorial .math-tabs,.editorial .tabs{border-bottom:1px solid var(--hub-line);gap:0;padding:0;margin-bottom:22px;background:var(--hub-bg)}
.editorial .math-tabs button,.editorial .tabs .tab{border:0;border-bottom:3px solid transparent;background:transparent;border-radius:0;font-size:.82rem;padding:14px 8px;color:var(--hub-muted)}
.editorial .math-tabs button[aria-selected=true],.editorial .tabs .tab[aria-selected=true]{background:transparent;color:var(--hub-ink);border-bottom-color:var(--strong);box-shadow:none}
.editorial .assessment-list{gap:0;border-top:1px solid var(--hub-line)}
.editorial .assessment{border:0;border-bottom:1px solid var(--hub-line);border-radius:0;background:transparent}
.editorial .assessment.next{box-shadow:none;border-color:var(--hub-line)}
.editorial .assessment>summary{padding:22px 12px 22px 0;grid-template-columns:5rem minmax(0,1fr) 1.5rem;gap:24px}
.editorial .date-tile{background:transparent;border-right:1px solid var(--hub-line);border-radius:0;min-height:62px}
.editorial .date-tile b{font-size:1.8rem;font-weight:600;letter-spacing:-.04em}
.editorial .date-tile .date-unknown{font-size:.84rem}
.editorial .date-tile span{font:500 .66rem/1.3 ui-monospace,monospace;text-transform:uppercase}
.editorial .assessment-title{font-weight:650;font-size:1.12rem;letter-spacing:-.025em}
.editorial .assessment-preview{font-size:.8rem;max-width:90ch}
.editorial .pill{border-radius:2px;font-size:.65rem;font-weight:550;background:var(--hub-soft)}
.editorial .topic,.editorial .rule-card,.editorial .review-progress{border-radius:3px;box-shadow:none}
.editorial .assessment-body{background:var(--hub-panel)}
.editorial .tile{border-radius:3px;box-shadow:none}
.editorial .math-footer{border-top:1px solid var(--hub-line);padding-top:22px;margin-top:42px;font-size:.75rem}

/* A self-contained dark instrument surface, independent of the page appearance. */
.editorial .math-lab{--bg:#102721;--tile:#153129;--ink:#edf4e7;--ink2:#b4c7b9;--line:#3b5347;--hub-soft:#203c30;--strong:#bfe3bf;--accent:#c8e8c8;--accent-ink:#203a2b;--plot-color:#b9e2c2;--plot-pink:#f0b3be;--hub-focus:#f0b3be;color-scheme:dark;color:var(--ink);border:0;border-radius:3px;padding:38px;background:#102721;box-shadow:none;margin:42px 0;overflow:hidden;position:relative}
.editorial[data-course=mth141] .math-lab{--bg:#242035;--tile:#2d2941;--ink:#f2eff9;--ink2:#c6bfd6;--line:#4d475e;--hub-soft:#39334c;--strong:#d5c5f0;--accent:#dfd0f8;--accent-ink:#36294b;--plot-color:#d5c5f0;background:#242035}
.editorial .math-lab .workbench-title{margin:0 0 28px;align-items:start}
.editorial .math-lab .workbench-kicker{font:500 .62rem/1.5 ui-monospace,monospace;letter-spacing:.11em;color:var(--ink2);margin-bottom:17px}
.editorial .math-lab .workbench-title h2{font-size:clamp(2.2rem,4.4vw,3.8rem);font-weight:500;font-variation-settings:"wdth" 95;letter-spacing:-.06em;line-height:1.05;color:var(--ink)}
.editorial .math-lab .workbench-title h2 span{font:italic 1.04em/1.05 Georgia,serif;color:var(--strong);letter-spacing:-.05em}
.editorial .math-lab .lab-subtitle{font-size:.78rem;color:var(--ink2);margin-top:14px}
.editorial .math-lab .lab-expand{border-color:var(--line);color:var(--ink);border-radius:2px;font-size:.7rem}
.editorial .lab-mode-switch{border:0;border-radius:0;padding:0 0 16px;gap:5px;background:transparent;margin:0}
.editorial .lab-mode-switch button{border-radius:2px;color:var(--ink2);padding:10px 16px;font-size:.74rem}
.editorial .lab-mode-switch button[aria-pressed=true]{background:var(--strong);color:var(--bg);border-color:var(--strong);box-shadow:none}
.editorial .math-lab .lab-tabs{gap:2px;padding:0;border-bottom:1px solid var(--line)}
.editorial .math-lab .lab-tabs button{border:0;border-radius:0;border-bottom:2px solid transparent;font-size:.73rem;padding:12px 14px;background:transparent;color:var(--ink2)}
.editorial .math-lab .lab-tabs button[aria-pressed=true]{background:transparent;color:var(--ink);border-bottom-color:var(--strong)}
.editorial .math-lab .lab-intro{margin:26px 0 22px}
.editorial .math-lab .lab-intro h3{font-size:1.25rem;font-weight:550;letter-spacing:-.03em}
.editorial .math-lab .lab-intro p{font-size:.8rem}
.editorial .math-lab .workbench-layout{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:34px}
.editorial .math-lab .workbench-plot{padding:14px 16px;background:transparent;border:1px solid var(--line);border-radius:2px}
.editorial .math-lab .workbench-svg{background:transparent;border-radius:0;aspect-ratio:4/3;max-height:none}
.editorial .math-lab .workbench-svg .grid{opacity:.55;stroke-width:.65}
.editorial .math-lab .workbench-svg .axis{stroke-width:1;opacity:.75}
.editorial .math-lab .workbench-svg .curve{stroke-width:2.5}
.editorial .math-lab .workbench-svg .tangent{stroke-width:2.6}
.editorial .math-lab .workbench-svg .lab-original{opacity:.55;stroke-width:1.6}
.editorial .math-lab .workbench-svg .plot-labels{font-size:11px}
.editorial .math-lab .lab-plot-tools>span{font:500 .58rem ui-monospace,monospace}
.editorial .math-lab .lab-plot-tools button{border:0;color:var(--ink2)}
.editorial .math-lab .workbench-legend{padding:10px 0 0;margin-top:3px;border-top:1px solid var(--line);font-size:.65rem}
.editorial .math-lab .workbench-controls{padding-top:8px}
.editorial .lab-equation-touch{font-size:clamp(1.2rem,2vw,1.65rem);gap:3px}
.editorial .lab-equation-touch button{background:transparent;border-radius:3px;padding-inline:8px;color:var(--ink)}
.editorial .lab-equation-touch button[aria-pressed=true]{background:var(--strong);border-color:var(--strong);color:var(--bg)}
.editorial .math-lab .workbench-equation{font-size:1.5rem;font-weight:400;color:var(--ink)}
.editorial .math-lab .lab-term-actions button,.editorial .math-lab .lab-presets button{border-radius:2px;font-size:.72rem;background:transparent}
.editorial .lab-term-actions button[aria-pressed=true]{background:var(--tile);color:var(--strong)}
.editorial .math-lab .lab-select select,.editorial .lab-exact input{background:var(--tile);border-radius:2px}
.editorial .math-lab .lab-readout{font-size:.85rem}
.editorial .math-lab .lab-readout span{font-size:.76rem}
.editorial .math-lab .cmp-lab{--cmp-blue:#a9c9ee;--cmp-violet:#ccbcf0;--cmp-pink:#f0b3be}
.editorial .cmp-builder,.editorial .cmp-card,.editorial .cmp-insight,.editorial .cmp-slot,.editorial .cmp-palette button,.editorial .cmp-actions button{border-radius:3px}
.editorial .cmp-card{background:transparent}
.editorial .cmp-svg{background:transparent}
.editorial .cmp-shape{fill-opacity:.22}
.editorial .cmp-grid{opacity:.6}
.editorial .cmp-palette button[aria-pressed=true],.editorial .cmp-lab .cmp-play{background:var(--strong);color:var(--bg)}
.editorial .challenge-lines button,.editorial .challenge-insight,.editorial .challenge-svg,.editorial .challenge-navigation button{border-radius:3px}
.editorial .challenge-navigation button:last-child{background:var(--strong);color:var(--bg)}
.editorial .lab-dialog{border-radius:3px;background:#102721}
.editorial[data-course=mth141] .lab-dialog{background:#242035}
.editorial .lab-dialog .math-lab{overflow:visible;margin:0;padding:30px;min-height:100%;border-radius:0}
.editorial .lab-dialog .workbench-title{background:var(--bg);top:0;padding:16px 0;z-index:4}

@media(hover:hover){.guide-dock button:hover{background:var(--hub-soft)}.hero-link:hover{background:var(--strong);border-color:var(--strong);color:var(--hub-panel)}.hero-secondary:hover{border-color:var(--strong)}.editorial .course-link:hover .course-name{color:var(--hub-ink)}}
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@media(max-width:1000px){.editorial .course-heading{gap:24px;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr)}.editorial .course-heading h1{font-size:clamp(3.5rem,8vw,5.6rem)}.hero-actions{gap:10px}.hero-figure-foot{padding:12px 10px}.hero-figure-foot>span:last-child{display:none}.editorial .math-lab{padding:28px}.editorial .math-lab .workbench-layout{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:24px}.editorial .lab-equation-touch{font-size:1.15rem;gap:2px}.editorial .lab-equation-touch button{padding-inline:5px}.editorial .next-assessment,.editorial .cen-next-layout .next{padding:22px}.editorial .after-next,.editorial .cen-next-layout .board{padding:20px}}
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