@import url('./tokens.css');
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 var(--font);-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:4px}button,input,textarea{font:inherit}button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.7}a,button,summary{touch-action:manipulation}a:hover{color:var(--red-ink)}:focus-visible{outline:3px solid #196ab3;outline-offset:4px}h1,h2,h3,p{margin:0 0 20px}h1,h2,h3{line-height:1.12;letter-spacing:-.04em}h1{font-size:clamp(2.45rem,5.3vw,4.8rem);font-weight:850;max-width:940px}h2{font-size:clamp(1.8rem,3vw,2.7rem)}h3{font-size:1.3rem;letter-spacing:-.02em}img{max-width:100%;height:auto}p:last-child{margin-bottom:0}small,.small{font-size:.84rem}ul{padding-left:22px}li{margin-bottom:10px}main{min-height:60vh}.wrap{width:min(var(--width),calc(100% - 64px));margin-inline:auto}.reading{max-width:var(--reading)}.section{padding-block:72px}.eyebrow{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;font-weight:750;margin-bottom:18px;color:var(--steel)}.eyebrow.red{color:var(--red-ink)}.lede{font-size:1.15rem;color:var(--steel);max-width:650px}.skip{position:absolute;left:16px;top:-100px;background:white;z-index:20;padding:12px}.skip:focus{top:8px}.site-header{background:var(--white);border-bottom:1px solid var(--line)}.header-inner{min-height:94px;display:flex;align-items:center;gap:38px}.brand{display:flex;align-items:center;flex-shrink:0}.brand img{display:block;width:145px;height:66px;object-fit:contain}.header-inner nav{display:flex;align-items:center;gap:30px;margin-left:auto}.header-inner nav a{text-decoration:none;font-size:.9rem;font-weight:650;padding:13px 0}.header-inner nav a[aria-current]{border-bottom:3px solid var(--red)}.menu-toggle{display:none}.button,button.primary{display:inline-flex;gap:16px;align-items:center;justify-content:center;padding:13px 22px;border:1px solid transparent;border-radius:5px;min-height:48px;text-decoration:none;font-weight:700;background:var(--red-ink);color:white;line-height:1.35}.button:hover,button.primary:hover{background:#91131a;color:white}.button.dark{background:var(--charcoal)}.button.outline{background:transparent;color:var(--ink);border-color:#8c8987}.button.light{background:white;color:var(--ink)}.text-link{font-weight:700;text-decoration:none;display:inline-block;padding-block:12px}.text-link:hover{text-decoration:underline}.hero{padding:76px 0 64px;background:var(--white);position:relative}.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:68px;align-items:center}.hero h1{font-size:clamp(3rem,5.6vw,5.1rem);line-height:.99;text-transform:uppercase;letter-spacing:-.05em}.hero h1 em{font-style:normal;color:var(--red-ink)}.hero .lede{margin-top:28px;max-width:570px}.hero-art{position:relative;background:var(--charcoal);border-radius:3px;min-height:380px;padding:32px;color:white;overflow:hidden}.hero-art:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#ffffff08 1px,transparent 1px),linear-gradient(#ffffff08 1px,transparent 1px);background-size:32px 32px}.hero-art>*{position:relative}.art-top{display:flex;justify-content:space-between;align-items:center;font:11px/1.4 var(--font);letter-spacing:.14em;text-transform:uppercase;color:#cbc7c5}.art-dot{width:7px;height:7px;border-radius:50%;background:var(--red);display:inline-block}.reason-track{margin:32px 0;display:grid;gap:0}.track-row{display:flex;align-items:center;gap:20px;padding:18px 0;border-bottom:1px solid #ffffff24}.track-row:last-child{border-bottom:0}.track-num{color:#bdb5b2;font-size:.78rem;font-variant-numeric:tabular-nums}.track-row strong{font-size:1.6rem;letter-spacing:-.04em}.track-row:last-child strong{color:#ff9296}.art-bottom{font-size:.85rem;color:#d5d0cc;border-left:3px solid var(--red);padding-left:16px}.ask-entry{margin-top:36px;background:var(--paper);padding:22px;border:1px solid var(--line);border-radius:8px}.ask-entry label{font-weight:750;display:block;margin-bottom:10px}.input-row{display:flex;gap:10px}.input-row .primary{flex-shrink:0;white-space:nowrap}input,textarea{color:var(--ink);background:white;border:1px solid #8e8b89;border-radius:5px;padding:13px 14px;min-width:0;width:100%;font-size:1rem}textarea{resize:vertical;min-height:108px}.scope-line{font-size:.82rem;color:var(--steel);margin-top:12px}.suggestions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.suggestions button{border:1px solid var(--line);background:white;color:var(--ink);border-radius:5px;padding:12px 14px;text-align:left;font-size:.85rem;min-height:44px}.suggestions button:hover{border-color:var(--red-ink);color:var(--red-ink)}.principle-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;background:white}.principle-strip .wrap{display:flex;justify-content:space-between;gap:16px;font-size:.82rem;color:var(--steel)}.principle-strip strong{color:var(--ink)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}.section-heading h2{margin-bottom:0}.section-heading p{max-width:370px;color:var(--steel)}.system-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}.system-card{background:white;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.system-image{display:block;height:240px;overflow:hidden;position:relative;background:var(--charcoal)}.system-image img{width:100%;height:100%;object-fit:cover;filter:saturate(.7)}.system-image span{position:absolute;bottom:18px;left:22px;background:#19191bea;color:white;padding:5px 12px;font-size:.72rem;letter-spacing:.12em}.system-body{padding:30px}.system-body p{color:var(--steel)}.system-body h3{font-size:1.8rem}.feature{padding:45px;display:grid;grid-template-columns:1.3fr .7fr;gap:50px;background:var(--charcoal);color:white;border-radius:var(--radius)}.feature p{color:#d4cecb}.feature .eyebrow{color:#ff9b9f}.feature-aside{border-left:1px solid #ffffff38;padding-left:36px;display:flex;flex-direction:column;justify-content:center}.feature-aside span{font-size:.8rem;color:#c5bfbb;margin-bottom:15px}.feature-aside a{padding:10px 0}.legacy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.legacy-card{border-top:2px solid var(--ink);padding:24px 0}.legacy-card p{color:var(--steel)}.site-footer{margin-top:64px;background:var(--charcoal);color:white;padding:54px 0 24px}.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px}.footer-brand img{width:165px;height:75px;object-fit:contain}.footer-brand p{color:#c8c4c1;margin-top:16px}.footer-links{display:flex;flex-direction:column;align-items:start}.footer-links a{display:block;color:#e2ddda;text-decoration:none;padding:7px 0;font-size:.9rem;min-height:38px}.footer-links a:hover{color:white;text-decoration:underline}.footer-links strong{font-size:.75rem;letter-spacing:.13em;text-transform:uppercase;color:#bbb5b0;margin-bottom:12px}.footer-bottom{border-top:1px solid #ffffff24;margin-top:36px;padding-top:22px;display:flex;justify-content:space-between;gap:20px;font-size:.77rem;color:#c3bdb9}.page-intro{padding:58px 0 36px}.breadcrumb{color:var(--steel);font-size:.8rem;margin-bottom:28px}.breadcrumb a{padding:8px 0;display:inline-block}.page-intro h1{font-size:clamp(2.4rem,4.6vw,4rem)}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.lesson-card{background:white;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}.lesson-card>a:first-child{display:block;aspect-ratio:16/9;background:#ddd}.lesson-card img{width:100%;height:100%;object-fit:cover}.lesson-card .card-body{padding:24px;display:flex;flex-direction:column;flex:1}.lesson-card h3{line-height:1.3}.lesson-card .eyebrow{font-size:.68rem;letter-spacing:.11em}.lesson-card p{color:var(--steel);font-size:.9rem}.lesson-card .text-link{margin-top:auto}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:44px}.lesson-main{min-width:0}.video-box{width:100%;max-width:100%;position:relative;aspect-ratio:16/9;background:var(--charcoal);overflow:hidden;border-radius:8px;min-height:210px}.video-box>img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;opacity:.62}.video-box>button{z-index:2;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);white-space:nowrap;background:white;color:var(--ink);box-shadow:0 2px 20px #0005}.video-box iframe,.video-box #player{position:absolute;inset:0;width:100%;height:100%;border:0;min-height:210px}.video-note{font-size:.82rem;color:var(--steel);margin-block:16px 32px}.video-note a{display:inline-block;padding-block:8px}.side-nav{border-left:1px solid var(--line);padding-left:26px}.side-nav nav{display:grid;gap:8px}.side-nav nav a{font-size:.85rem;text-decoration:none;padding:13px 15px;border-radius:5px}.side-nav nav a[aria-current]{background:var(--ink);color:white}.side-nav nav span{display:block;color:var(--steel);font-size:.67rem;letter-spacing:.12em;margin-bottom:4px}.side-nav nav a[aria-current] span{color:#d2cbc8}.reason-block{background:white;border:1px solid var(--line);padding:30px;border-radius:var(--radius);margin-bottom:22px}.reason-block h2{font-size:1.5rem}.reason-block h3{font-size:1.2rem}.scope-note{padding:12px 16px;background:var(--bounded-bg);color:var(--bounded);font-size:.84rem;border-left:3px solid #a77a20}.evidence{border-top:1px solid var(--line);margin-top:24px;font-size:.9rem}.evidence summary{font-weight:700;cursor:pointer;padding:16px 0;min-height:48px}.evidence summary::marker{color:var(--red-ink)}.evidence-body{padding:0 0 12px}.evidence dt{font-size:.75rem;font-weight:750;text-transform:uppercase;letter-spacing:.08em;color:var(--steel);margin-top:20px}.evidence dd{margin:6px 0 0}.evidence ul{padding-left:18px}.source-list{list-style:none;padding:0!important}.source-list li{padding:14px 0;border-top:1px solid var(--line)}.source-list a{display:block;font-weight:650;font-size:.87rem}.source-list span{display:block;color:var(--steel);font-size:.78rem;margin-top:4px}.next-box{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:32px 0;padding:26px;background:#ece9e4;border-radius:8px}.next-box p{margin:0}.reference-list{display:grid;border-top:1px solid var(--line)}.reference-list a{padding:24px 0;border-bottom:1px solid var(--line);font-size:1.2rem;font-weight:650;text-decoration:none;display:flex;justify-content:space-between;gap:24px}.chat-layout{display:grid;grid-template-columns:minmax(0,800px) 270px;gap:60px;padding-bottom:32px}.chat-main{min-width:0}.chat-welcome{background:white;border:1px solid var(--line);border-radius:12px;padding:32px}.chat-welcome h2{font-size:1.6rem;margin-top:20px}.chat-aside{font-size:.9rem;color:var(--steel)}.chat-aside h2{font-size:1.1rem;color:var(--ink)}.chat-aside a{display:block;padding:12px 0}.chip{display:inline-flex;font-size:.7rem;letter-spacing:.06em;font-weight:700;color:var(--support);background:var(--support-bg);padding:5px 9px;border-radius:4px;vertical-align:middle}.chip.bounded{background:var(--bounded-bg);color:var(--bounded)}.chat-form{margin-top:24px;background:white;border:1px solid var(--line);padding:26px;border-radius:10px}.chat-form>label:not(.opt-in){font-weight:750;display:block;margin-bottom:12px}.chat-form .submit-row{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:20px}.opt-in{display:flex;align-items:flex-start;gap:10px;font-size:.82rem;color:var(--steel);margin-top:16px}.opt-in input{width:19px;height:19px;flex-shrink:0;margin-top:3px;accent-color:var(--red-ink)}.chat-status{margin-top:12px;color:var(--red-ink);font-size:.9rem;min-height:24px}.chat-turn{margin:28px 0}.user-message{margin-left:12%;background:#e8e5df;border-radius:12px 12px 0 12px;padding:20px 24px;overflow-wrap:anywhere}.user-message span,.answer-label{display:block;font-size:.65rem;letter-spacing:.13em;font-weight:750;margin-bottom:10px;color:var(--steel)}.answer-card{margin-top:18px;padding:30px;background:white;border:1px solid var(--line);border-radius:12px}.answer-card h2{font-size:1.3rem;letter-spacing:-.02em;margin-top:24px}.answer-main{font-size:1.12rem}.next-question{border-left:3px solid var(--red);padding-left:18px;margin-top:26px}.next-question button{margin-top:12px}.answer-card .related{display:grid;gap:8px;margin-top:20px}.answer-card .related a{padding:8px 0}.exercise-card{background:white;border:1px solid var(--line);padding:32px;border-radius:12px;margin-bottom:28px}.exercise-card h2{font-size:1.8rem}.provided{background:var(--paper);padding:20px;margin-block:22px}.exercise-card fieldset{border:0;margin:24px 0;padding:0}.exercise-card legend{font-weight:700;margin-bottom:14px}.answer-option{display:flex;align-items:flex-start;gap:12px;padding:16px;border:1px solid var(--line);border-radius:5px;margin:10px 0;cursor:pointer}.answer-option input{width:18px;height:18px;margin-top:4px;flex-shrink:0;accent-color:var(--red-ink)}.exercise-card textarea{margin:12px 0 20px}.feedback{padding:20px;margin-top:22px;background:var(--support-bg);border-left:3px solid var(--support)}.feedback:empty{display:none}.worksheet-actions{display:flex;flex-wrap:wrap;gap:15px;margin-bottom:30px}.worksheet ol{padding-left:24px}.worksheet li{margin-bottom:32px}.worksheet h2{font-size:1.05rem;letter-spacing:0;line-height:1.5}.writing-lines{height:75px;background:repeating-linear-gradient(transparent,transparent 24px,var(--line) 25px)}.error-box{padding:48px 0}.progress-note{font-size:.8rem;color:var(--steel);margin-top:20px}.noscript{padding:18px;background:var(--bounded-bg)}[hidden]{display:none!important}.row-links{display:flex;flex-wrap:wrap;gap:20px}.method-step{border-top:1px solid var(--line);padding:28px 0}.method-step h2{font-size:1.5rem}.legal-note{font-size:.85rem;color:var(--steel);border-top:1px solid var(--line);padding-top:22px}.print-only{display:none}
@media(min-width:1600px){.hero{padding-block:96px}.hero-grid{gap:90px}}
@media(max-width:1000px){.hero-grid{gap:32px;grid-template-columns:1.15fr .85fr}.hero-art{padding:24px;min-height:340px}.track-row strong{font-size:1.3rem}.header-inner nav{gap:20px}.lesson-grid{grid-template-columns:repeat(2,1fr)}.chat-layout{grid-template-columns:minmax(0,1fr) 210px;gap:30px}.lesson-layout{grid-template-columns:minmax(0,1fr) 230px;gap:28px}}
@media(max-width:760px){.wrap{width:calc(100% - 40px)}.header-inner{min-height:80px;flex-wrap:wrap;gap:0;justify-content:space-between;padding-bottom:0}.brand img{width:125px;height:62px}.menu-toggle{display:block;background:none;border:1px solid var(--line);border-radius:5px;padding:10px 15px;min-height:44px}.header-inner nav{display:none;flex-basis:100%;margin:0;padding:10px 0 20px;gap:4px;flex-direction:column;align-items:stretch}.header-inner nav.open{display:flex}.header-inner nav a{padding:12px}.hero{padding:42px 0}.hero-grid{grid-template-columns:1fr;gap:30px}.hero h1{font-size:clamp(2.65rem,9.7vw,4rem)}.hero .lede{font-size:1.02rem;margin-top:24px}.hero-art{min-height:0;padding:24px}.reason-track{margin:18px 0;grid-template-columns:repeat(3,1fr)}.track-row{flex-direction:column;align-items:start;gap:9px;border-bottom:0;border-right:1px solid #ffffff24;padding:12px}.track-row:first-child{padding-left:0}.track-row:last-child{border-right:0}.track-row strong{font-size:1.15rem}.art-bottom{font-size:.78rem}.input-row{flex-direction:column}.ask-entry{padding:18px}.principle-strip .wrap{flex-wrap:wrap;justify-content:start;gap:10px 25px;font-size:.73rem}.section{padding-block:44px}.section-heading{align-items:start;flex-direction:column;gap:16px}.section-heading p{margin:0}.system-grid{grid-template-columns:1fr}.system-image{display:block;height:auto;aspect-ratio:16/9}.system-body{padding:24px}.feature{grid-template-columns:1fr;padding:28px;gap:24px}.feature-aside{border-left:0;border-top:1px solid #ffffff38;padding:24px 0 0}.legacy-grid{grid-template-columns:1fr;gap:8px}.legacy-card{padding:24px 0}.footer-top{grid-template-columns:1fr 1fr;gap:32px 20px}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:10px}.site-footer{margin-top:42px}.lesson-layout{grid-template-columns:1fr}.side-nav{border-left:0;border-top:1px solid var(--line);padding:26px 0}.lesson-grid{grid-template-columns:1fr}.page-intro{padding:36px 0 24px}.page-intro h1{font-size:2.35rem}.reason-block{padding:23px}.next-box{flex-direction:column;align-items:stretch}.chat-layout{grid-template-columns:1fr;gap:36px}.chat-form,.chat-welcome,.answer-card{padding:22px}.chat-form .submit-row{flex-direction:column;align-items:stretch}.chat-aside{border-top:1px solid var(--line);padding-top:24px}.user-message{margin-left:5%;padding:18px}.exercise-card{padding:22px}.exercise-card h2{font-size:1.55rem}.video-box{min-height:210px}.source-list a{overflow-wrap:anywhere}}
@media(max-width:360px){.wrap{width:calc(100% - 32px)}.hero h1{font-size:2.65rem}.hero-art{padding:19px}.track-row{padding:10px}.track-row strong{font-size:1rem}.art-top{font-size:9px}.chat-form,.answer-card,.chat-welcome{padding:18px}.page-intro h1{font-size:2.1rem}.button{padding:12px 16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media print{.site-header,.site-footer,.worksheet-actions,.evidence,.skip{display:none}body{background:white;color:black}.wrap{width:100%}.page-intro{padding:0}.worksheet li{break-inside:avoid}.print-only{display:block}}

/* V2: a compact question-first working surface, with an editorial library. */
:root{--content:1200px}body{font-size:16px}.header-inner{min-height:76px}.brand img{width:116px;height:53px}.site-header{position:relative}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:64px;padding-block:46px 52px}.conversation{min-width:0;max-width:790px}.conversation-intro h1{font-size:clamp(2.1rem,4.2vw,3.45rem);line-height:1.07;letter-spacing:-.04em;margin:16px 0}.conversation-deck{font-size:18px;margin:16px 0 8px}.coverage{font-size:14px;color:#54545b;margin-bottom:24px}.coverage a{font-weight:650}.composer{background:white;border:1px solid #c7c4bf;border-top:3px solid #b51920;border-radius:8px;padding:20px;box-shadow:0 4px 16px #231f2007}.composer>label{font-size:14px}.composer textarea{width:100%;resize:vertical;border:0;background:#f7f6f3;padding:12px;font:inherit;border-radius:4px;margin:8px 0;min-height:90px}.composer textarea:focus-visible{outline:3px solid #1867bd}.context-entry summary{font-size:14px;padding:8px 0;cursor:pointer}.context-entry>label{display:block;font-size:14px;padding-top:8px}.context-entry textarea{min-height:65px}.composer-actions{display:flex;gap:16px;justify-content:space-between;align-items:center}.composer-actions .opt-in{margin:0;font-weight:400;align-items:flex-start;font-size:14px}.composer-actions small{font-size:12px;color:#555}.composer-actions input{min-width:18px;min-height:18px}.composer-actions button{flex-shrink:0;min-height:48px;white-space:nowrap}.chat-status:empty{display:none}.chat-status{font-size:14px;color:#54545b}.starter-questions{margin:24px 0 0}.starter-questions .suggestions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.suggestions button{text-align:left;line-height:1.45;font-size:14px;padding:12px;background:transparent}.knowledge-rail{border-left:1px solid #d9d5ce;padding-left:28px;margin-top:10px}.knowledge-rail h2{font-size:23px;line-height:1.15}.knowledge-rail>p{font-size:14px}.rail-lesson{padding:20px 0;border-bottom:1px solid #d9d5ce}.rail-lesson img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:4px;margin-bottom:8px}.rail-lesson a{display:block;font-size:16px;font-weight:750}.rail-lesson span{display:block;font-size:12px;color:#54545b;margin-top:6px}.knowledge-rail>.small{display:inline-block;margin-top:18px}.library-strip{border-top:1px solid #c7c4bf;padding-block:30px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px}.library-strip h2{font-size:24px}.library-strip nav{display:grid;grid-template-columns:1fr 1fr;gap:16px 28px;font-weight:650;font-size:14px}.conversation-turn{scroll-margin-top:24px;border-top:1px solid #d9d5ce;padding:24px 0 28px}.asked-question{font-size:22px;line-height:1.4;font-weight:600}.answer-content{outline:none}.answer-label{font-size:12px;letter-spacing:.08em;color:#54545b;font-weight:700;margin-top:28px}.answer-main{font-size:19px;line-height:1.7}.answer-unit+.answer-unit{margin-top:24px}.answer-unit .scope-note{font-size:14px}.confirmation-limit{border-left:3px solid #b08830;padding-left:14px;font-size:14px}.answer-unit .evidence{margin-top:14px}.answer-unit .evidence>summary{font-size:14px}.reported-context{font-size:14px;overflow-wrap:anywhere}.has-conversation .conversation-intro h1{font-size:25px}.has-conversation .conversation-deck,.has-conversation .starter-questions{display:none}.has-conversation .desktop-break{display:none}.has-conversation .conversation-intro{margin-bottom:12px}.library{max-width:960px}.library>input{width:100%;padding:14px;border:1px solid #c7c4bf;border-radius:5px;font:inherit}.library>label{display:block;margin-bottom:8px;font-weight:650}.catalog-list{list-style:none;padding:0}.catalog-list li{padding:24px 0;border-top:1px solid #d9d5ce}.catalog-list h2{font-size:22px;line-height:1.35;margin:8px 0}.catalog-list .eyebrow{font-size:12px}.case-entry{display:block;padding:28px;background:#fff;border:1px solid #d9d5ce;border-radius:8px}.case-entry h2{font-size:28px}.site-footer{margin-top:60px}.page-intro{padding-top:40px}.page-intro h1{font-size:clamp(2rem,4vw,3.5rem)}.eyebrow{font-size:12px}.small,.scope-line{font-size:14px}.source-list span{font-size:12px}.lesson-card img{aspect-ratio:16/9;object-fit:cover}.row-links{flex-wrap:wrap}.reading{max-width:820px}.reason-block{margin-bottom:22px}.video-box{min-width:0}.video-box iframe{max-width:100%}button,input,textarea,summary{touch-action:manipulation}[hidden]{display:none!important}
@media(max-width:1000px){.workspace{grid-template-columns:minmax(0,1fr) 220px;gap:32px}.knowledge-rail{padding-left:20px}.header-inner{min-height:72px}.composer-actions{align-items:flex-start}}
@media(max-width:760px){.workspace{grid-template-columns:1fr;padding-top:26px;gap:32px}.conversation{max-width:none}.conversation-intro h1{font-size:36px}.conversation-deck{font-size:16px}.desktop-break{display:none}.composer{padding:16px}.composer-actions{flex-direction:column}.composer-actions button{width:100%}.knowledge-rail{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;border-left:0;border-top:1px solid #d9d5ce;padding:24px 0 0;margin:0}.knowledge-rail>.eyebrow,.knowledge-rail>h2,.knowledge-rail>p,.knowledge-rail>.small{grid-column:1/-1;margin:0}.rail-lesson{padding:6px 0 16px}.rail-lesson a{font-size:16px}.library-strip{display:block}.library-strip nav{margin-top:20px}.starter-questions .suggestions{grid-template-columns:1fr}.starter-questions .suggestions button{padding:12px}.site-footer{margin-top:36px}.conversation-turn{padding-top:18px}.answer-main{font-size:18px}.asked-question{font-size:20px}}
@media(max-width:360px){.conversation-intro h1{font-size:30px}.workspace{padding-top:22px}.composer{padding:12px}.knowledge-rail{gap:12px}.brand img{width:108px}.coverage{margin-bottom:18px}.composer textarea{min-height:84px}.composer .small{font-size:13px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.additional-reasoning{border-top:1px solid #d9d5ce;padding-top:12px;margin-top:20px}.additional-reasoning>summary{font-size:14px;cursor:pointer;padding:8px 0}.additional-reasoning .answer-unit{margin-top:20px}

.lesson-card .lesson-card-title{font-size:1.3rem;letter-spacing:-.02em;line-height:1.3}