:root{font-family:Inter,"Segoe UI",Arial,sans-serif;color:#242723;background:#f6f5f0;font-synthesis:none;--paper:#f6f5f0;--white:#fffefa;--ink:#242723;--muted:#71766e;--line:#dddfd5;--blue:#2853da;--blue-soft:#edf1ff;--rail:244px;line-height:1.5}
*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #8bafff;outline-offset:3px}h1,h2,h3,h4,p{margin:0}h1{font-size:clamp(27px,3vw,40px);letter-spacing:-1.4px;line-height:1.17;font-weight:600}h2{font-size:23px;line-height:1.25;letter-spacing:-.65px;font-weight:600}h3{font-size:17px;font-weight:600;line-height:1.4}h4{font-size:14px;font-weight:600}p{line-height:1.6}small{font-size:12px}textarea{resize:vertical;line-height:1.7;min-height:72px}input,textarea,select{width:100%;border:1px solid #cbd0c4;background:var(--white);border-radius:5px;padding:12px 14px;color:var(--ink);transition:border-color .16s,box-shadow .16s}input:focus,textarea:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 2px #2853da13;outline:none}textarea:read-only{background:#efefe8;color:#51564e}label{display:block;font-size:13px;font-weight:600;margin-bottom:8px}::selection{background:#d7e1ff}
.skip-link{position:fixed;top:-60px;left:12px;z-index:99;background:var(--white);padding:12px}.skip-link:focus{top:12px}.shell{min-height:100svh;display:grid;grid-template-columns:var(--rail) minmax(0,1fr)}.sidebar{height:100svh;position:sticky;top:0;border-right:1px solid var(--line);padding:34px 24px;display:flex;flex-direction:column}.brand{color:var(--ink);font-size:19px;font-weight:650;letter-spacing:-.6px;line-height:1.2;display:block}.brand:hover{text-decoration:none}.brand-symbol{color:var(--blue);font-size:25px;letter-spacing:-5px;margin-right:12px;font-weight:500}.brand-sub{font-size:11px;letter-spacing:.6px;margin-top:12px;color:var(--muted);text-transform:uppercase}.nav{margin-top:52px;display:grid;gap:7px}.nav-button{border:0;background:transparent;text-align:left;padding:12px 13px;border-radius:5px;color:#777c72;font-size:14px;display:flex;align-items:center;gap:13px;transition:background .17s,color .17s,transform .17s}.nav-button:hover{background:#eceee5;color:var(--ink)}.nav-button.active{background:var(--blue-soft);color:var(--blue);font-weight:600}.nav-number{font-variant-numeric:tabular-nums;font-size:11px;opacity:.65}.sidebar-bottom{margin-top:auto;font-size:12px;color:var(--muted);display:grid;gap:16px}.sidebar-bottom .module-name{color:var(--ink);font-size:13px;line-height:1.5}.sidebar-bottom .identity{font-family:Consolas,monospace;font-size:10px;overflow-wrap:anywhere}.workspace{min-width:0}.topbar{height:83px;border-bottom:1px solid var(--line);padding:0 46px;display:flex;align-items:center;justify-content:space-between;gap:20px}.topbar-title{font-size:13px;color:var(--muted)}.topbar-right{display:flex;align-items:center;gap:16px;font-size:12px}.mode{display:inline-flex;align-items:center;gap:7px;color:#687062;font-size:11px;letter-spacing:.05px}.mode-dot{height:6px;width:6px;background:currentColor;border-radius:50%;flex:none}.mode.demo{color:#776746}.mode.live{color:var(--blue)}.quiet-button{border:0;background:none;padding:6px;color:var(--muted);font-size:12px}.quiet-button:hover{color:var(--blue)}.main{padding:43px 46px 56px;min-width:0;max-width:1600px}.page-head{margin-bottom:32px;display:flex;align-items:flex-start;justify-content:space-between;gap:28px}.eyebrow{text-transform:uppercase;letter-spacing:1.2px;color:var(--muted);font-size:10px;font-weight:600;display:block;margin-bottom:12px}.lead{font-size:14px;color:var(--muted);margin-top:12px;max-width:600px}.phase-label{font-size:11px;color:var(--muted);padding-top:3px}.button{border:1px solid transparent;border-radius:5px;padding:11px 18px;font-size:13px;font-weight:600;background:var(--blue);color:white;display:inline-flex;align-items:center;justify-content:center;gap:9px;line-height:1.4;transition:background .16s,transform .16s;text-decoration:none;min-height:43px}.button:hover{background:#1e43bf;text-decoration:none}.button:active{transform:translateY(1px)}.button.secondary{color:var(--ink);background:transparent;border-color:#cdd2c5}.button.secondary:hover{background:#ebece5}.button.small{font-size:12px;padding:8px 12px;min-height:35px}.button.text{color:var(--blue);background:transparent;padding-left:0;padding-right:0;min-height:30px}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.muted{color:var(--muted)}.text-small{font-size:12px}.preline{white-space:pre-wrap;overflow-wrap:anywhere}.notice{padding:15px 18px;background:#eeefe6;border-left:3px solid #b6bdac;font-size:13px;margin-bottom:26px;color:#555d50;line-height:1.6}.notice.blue{background:var(--blue-soft);border-color:var(--blue);color:#374f9f}.notice.error{background:#fff0e9;border-color:#b96036;color:#8e472b}.notice.success{background:#ecf2e6;border-color:#829772;color:#49603b}.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:currentColor;margin-right:7px}.save-status{font-size:11px;color:#7b8075;min-width:130px;text-align:right}.save-status[data-state="dirty"],.save-status[data-state="error"]{color:#a56a29}.save-status[data-state="saved"]{color:#6a7a5c}.test-stats{display:flex;align-items:center;gap:20px;font-size:12px;color:var(--muted);flex-wrap:wrap}.test-stats strong{color:var(--ink);font-weight:500;font-variant-numeric:tabular-nums}.progress-track{height:3px;background:#e5e7dd;margin-top:21px;overflow:hidden}.progress-fill{height:100%;background:var(--blue);transition:width .3s}.test-layout{display:grid;grid-template-columns:minmax(0,1fr) 225px;gap:48px}.question-nav{display:flex;gap:8px;flex-wrap:wrap;margin:25px 0 35px}.question-button{height:36px;min-width:36px;border:1px solid #d5d9cf;background:transparent;border-radius:4px;color:#7c8274;font-size:12px;position:relative;transition:.17s}.question-button.answered:after{content:"";position:absolute;bottom:4px;left:calc(50% - 2px);width:4px;height:4px;background:#8d9a7c;border-radius:50%}.question-button.active{background:var(--blue);border-color:var(--blue);color:#fff}.question-button.active:after{background:white}.question-button:hover{border-color:var(--blue)}.question-meta{font-size:11px;color:var(--muted);margin-bottom:12px;display:flex;gap:9px;align-items:center}.question-prompt{font-size:18px;line-height:1.65;margin-top:15px;margin-bottom:32px;white-space:pre-wrap}.field{margin-bottom:24px}.field-helper{font-size:12px;color:var(--muted);margin-top:7px}.reasoning-label{display:flex;justify-content:space-between;align-items:center}.reasoning-label span{font-size:11px;color:var(--muted);font-weight:400}.question-footer{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding-top:24px;margin-top:32px;align-items:center}.inspector{border-left:1px solid var(--line);padding-left:28px;padding-top:25px;min-width:0}.inspector-section{margin-bottom:33px}.inspector-title{text-transform:uppercase;font-size:10px;letter-spacing:1px;color:var(--muted);margin-bottom:13px}.inspector p{font-size:12px;color:var(--muted)}.topic-name{font-size:14px;line-height:1.55;font-weight:500;margin-bottom:12px}.topic-list{list-style:none;padding:0;margin:0;display:grid;gap:12px;font-size:12px;color:#8b9183}.topic-list li.current{color:var(--ink);font-weight:500}.topic-list li:before{content:"—";margin-right:8px}.link-button{border:0;background:none;color:var(--blue);text-align:left;padding:0;font-size:12px;cursor:pointer}.link-button:hover{text-decoration:underline}.empty{padding:58px 0;max-width:660px}.empty-index{font-family:Georgia,serif;font-size:62px;color:#c4c9ba;letter-spacing:-4px;margin-bottom:22px;line-height:1}.empty h2{margin-bottom:14px;font-size:27px}.empty p{color:var(--muted);font-size:14px;margin-bottom:22px}.process-list{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:0;max-width:580px}.process-list li{padding:19px 0;display:flex;gap:20px;align-items:center;border-top:1px solid var(--line);font-size:13px;color:#9aa18f}.process-list li:last-child{border-bottom:1px solid var(--line)}.process-list li.current{color:var(--blue)}.process-list li.done{color:#687e57}.process-index{font-size:11px;font-variant-numeric:tabular-nums}.process-list li.current .process-index{animation:pulse 1.6s ease-in-out infinite}.summary-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:35px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.summary-item{padding:20px 18px 20px 0}.summary-number{font-size:30px;letter-spacing:-1px;font-weight:500;line-height:1.1}.summary-label{font-size:11px;color:var(--muted);margin-top:8px}.status{display:inline-flex;align-items:center;gap:7px;font-size:11px;line-height:1.5;font-weight:500}.status.demonstrated{color:#5e7750}.status.difficulty{color:#a46638}.status.insufficient_data{color:#77735e}.status.unassessed{color:#979d8b}.topic-result{padding:25px 0;border-bottom:1px solid var(--line)}.topic-result-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:18px}.finding{padding:18px 0 3px;max-width:800px}.finding+.finding{border-top:1px dashed var(--line);margin-top:14px}.finding-title{font-size:12px;color:var(--muted);margin-bottom:10px}.finding p{font-size:13px;margin-bottom:12px}.finding-dimensions{display:flex;gap:22px;flex-wrap:wrap;font-size:11px;color:var(--muted);margin:12px 0}.evidence{margin:15px 0;padding:10px 16px;border-left:2px solid #bbc3ae;background:#f0f1e9;font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere;color:#4f5748}.evidence cite{font-size:10px;font-style:normal;color:var(--muted);display:block;margin-top:7px}.criteria{font-size:11px;color:var(--muted);display:grid;gap:7px;padding:0;list-style:none;margin:14px 0}.course-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:38px;margin-top:30px}.block-list{display:flex;flex-direction:column;align-items:stretch;gap:10px}.block-button{background:transparent;border:0;border-left:2px solid var(--line);padding:9px 14px;font-size:12px;color:var(--muted);text-align:left;line-height:1.5;transition:all .17s}.block-button.active{color:var(--blue);border-color:var(--blue);background:#2853da06}.block-num{font-size:10px;display:block;margin-bottom:5px}.lesson{max-width:780px;min-width:0}.lesson section{padding:22px 0;border-bottom:1px solid var(--line)}.lesson section:first-child{padding-top:0}.lesson section h3{margin-bottom:14px}.lesson p{font-size:14px}.source-caption{font-size:11px;color:var(--muted);margin-bottom:11px}.material{font-size:13px!important;line-height:1.8!important}.example-solution{padding-top:15px;color:#616b57;font-size:13px!important}.exercise-prompt{margin-bottom:20px}.practice-result{padding-top:20px;display:grid;gap:12px}.completion{display:flex;gap:11px;align-items:flex-start;padding:24px 0;font-size:12px;line-height:1.6}.completion input{width:18px;height:18px;margin:1px 0 0;accent-color:var(--blue);flex:none}.completion label{margin:0;font-weight:500}.timeline{margin-top:30px}.timeline-item{padding:25px 0;border-top:1px solid var(--line)}.timeline-head{display:flex;justify-content:space-between;gap:16px;align-items:center}.timeline-meta{font-size:11px;color:var(--muted);margin-top:8px}.timeline-profile{padding-top:19px;display:grid;gap:12px;font-size:12px}.timeline-topic{display:flex;justify-content:space-between;gap:20px}.landing-shell{min-height:100svh;padding:38px 5.5vw;display:flex;flex-direction:column}.landing-top{display:flex;justify-content:space-between;align-items:center;gap:24px}.landing{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:80px;max-width:1160px;margin:auto;padding:75px 0;width:100%}.landing h1{font-size:clamp(42px,6vw,72px);line-height:1.04;letter-spacing:-3.4px;max-width:660px}.landing-copy{font-size:15px;color:var(--muted);max-width:480px;margin:25px 0 34px}.link-form{max-width:580px;display:flex;gap:10px}.link-form input{min-width:0;font-size:13px}.landing-aside{padding-top:6px}.flow-index{font-size:10px;color:var(--blue);display:block;margin-bottom:9px}.flow-step{padding:20px 0;border-bottom:1px solid var(--line)}.flow-step:first-child{padding-top:0}.flow-step h3{font-size:15px;margin-bottom:8px}.flow-step p{font-size:12px;color:var(--muted)}.landing-footer{font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:25px;padding-top:24px;border-top:1px solid var(--line)}.dev-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:35px}.session-list{display:grid;align-content:start;gap:4px;border-right:1px solid var(--line);padding-right:24px}.session-item{background:transparent;border:0;border-bottom:1px solid var(--line);text-align:left;padding:17px 12px;line-height:1.5;transition:background .16s}.session-item.active{background:var(--blue-soft)}.session-id{display:block;font-family:Consolas,monospace;font-size:11px;color:var(--ink);overflow-wrap:anywhere}.session-state{display:block;font-size:11px;color:var(--muted);margin-top:7px}.dev-session{min-width:0}.dev-control-bar{display:flex;gap:9px;flex-wrap:wrap;margin:22px 0}.dev-label{font-size:12px;color:var(--muted);margin-bottom:10px}.personal-link{display:flex;gap:9px;margin:12px 0 24px}.personal-link input{font-size:11px;font-family:Consolas,monospace}.dev-section{padding:27px 0;border-top:1px solid var(--line)}.dev-section h3{margin-bottom:17px}.json-details{margin:14px 0;border-top:1px solid var(--line);font-size:12px}.json-details summary{cursor:pointer;padding:12px 0;color:var(--muted)}pre{font-family:Consolas,"Courier New",monospace;font-size:11px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere;background:#eeefe7;padding:16px;border-radius:4px;max-height:550px;overflow:auto;margin:0}.report-answer{padding:18px 0;border-bottom:1px solid var(--line)}.report-answer h4{margin-bottom:12px}.report-answer-label{font-size:10px;color:var(--muted);margin:10px 0 6px;letter-spacing:.5px;text-transform:uppercase}.report-answer p{font-size:13px}.review-form{display:grid;gap:15px;margin-top:17px}.comparison{overflow-x:auto;margin-top:18px}table{border-collapse:collapse;width:100%;font-size:12px;min-width:480px}th{text-align:left;color:var(--muted);font-size:11px;font-weight:500}td,th{padding:13px 15px 13px 0;border-bottom:1px solid var(--line);vertical-align:top}.signin{max-width:470px;margin:55px 0}.signin h2{margin-bottom:14px}.signin p{font-size:13px;color:var(--muted);margin-bottom:25px}.signin .field{margin:20px 0}.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;box-shadow:0 5px 25px #24272320;padding:13px 20px;border-radius:6px;font-size:12px;max-width:min(90vw,620px);z-index:100;animation:toast-in .2s ease-out}.feedback-form textarea{min-height:135px}.dialog-backdrop{position:fixed;inset:0;background:#24272350;backdrop-filter:blur(3px);z-index:80;display:grid;place-items:center;padding:24px}.dialog{background:var(--paper);width:100%;max-width:560px;max-height:85svh;overflow:auto;padding:34px;border-radius:7px;box-shadow:0 15px 50px #24272320;animation:dialog-in .18s ease-out}.dialog h2{margin-bottom:14px}.dialog p{font-size:13px;color:var(--muted);margin-bottom:23px}.dialog .actions{justify-content:flex-end;margin-top:23px}.loading{padding:70px 46px;color:var(--muted);font-size:13px}.loading:before{content:"";width:7px;height:7px;background:var(--blue);border-radius:50%;display:inline-block;margin-right:12px;animation:pulse 1.3s infinite}.view-enter{animation:view-in .24s ease-out}.error-message{font-size:12px;color:#a24f31;margin-top:12px}.spaced{margin-top:22px}.countdown.expired{color:#a24f31}.user-row{display:flex;gap:15px;align-items:center;justify-content:space-between}.badge{font-size:10px;color:var(--muted);border:1px solid var(--line);padding:3px 7px;border-radius:3px}.review-text{font-size:12px;color:var(--muted);line-height:1.7;margin-top:12px}.no-print{}@keyframes pulse{50%{opacity:.3}}@keyframes view-in{from{opacity:.5;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@keyframes toast-in{from{opacity:0;transform:translate(-50%,7px)}to{opacity:1;transform:translate(-50%,0)}}@keyframes dialog-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1700px){.main{padding-left:68px;padding-right:68px}.topbar{padding-left:68px;padding-right:68px}}
@media(max-width:1200px){:root{--rail:210px}.sidebar{padding:30px 19px}.topbar{padding:0 30px}.main{padding:35px 30px 45px}.test-layout{gap:29px;grid-template-columns:minmax(0,1fr) 180px}.inspector{padding-left:20px}.dev-layout{grid-template-columns:230px minmax(0,1fr);gap:25px}.course-layout{grid-template-columns:180px minmax(0,1fr);gap:25px}.landing{gap:45px;grid-template-columns:minmax(0,1fr) 260px}}
@media(max-width:930px){:root{--rail:185px}.brand{font-size:17px}.sidebar{padding:28px 15px}.main{padding:30px 24px}.topbar{padding:0 24px;height:73px}.topbar-right{gap:10px}.test-layout{grid-template-columns:1fr}.inspector{border-left:0;border-top:1px solid var(--line);padding:25px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:25px}.inspector-section{margin:0}.inspector-section:last-child{display:none}.question-prompt{font-size:17px}.dev-layout{grid-template-columns:190px minmax(0,1fr);gap:23px}.session-list{padding-right:15px}.course-layout{grid-template-columns:1fr}.block-list{flex-direction:row;overflow:auto;margin-bottom:8px}.block-button{min-width:160px;border-left:0;border-bottom:2px solid var(--line)}.block-button.active{border-color:var(--blue)}.summary-item{padding-right:10px}.landing{grid-template-columns:1fr;gap:55px;max-width:720px}.landing-aside{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.flow-step{padding-top:0;border-bottom:0}.landing h1{font-size:62px}.landing-footer{font-size:10px}}
@media(max-width:680px){.shell{display:block}.sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:20px 20px 0;display:block}.brand{font-size:18px;display:flex;align-items:center}.brand-sub{position:absolute;right:20px;top:22px;margin:0;font-size:9px}.nav{margin:22px -4px 0;display:flex;gap:4px;justify-content:space-between}.nav-button{padding:12px 8px;font-size:12px;border-radius:4px 4px 0 0;gap:7px}.nav-number{font-size:9px}.sidebar-bottom{display:none}.topbar{height:60px;padding:0 20px;gap:10px}.topbar-title{font-size:11px}.topbar-right{gap:8px}.mode{font-size:9px;max-width:150px;line-height:1.4}.quiet-button{font-size:11px}.main{padding:29px 20px 40px}.page-head{margin-bottom:25px;gap:15px}.page-head h1{font-size:28px;letter-spacing:-1px}.eyebrow{font-size:9px;letter-spacing:1px;margin-bottom:9px}.lead{font-size:12px;margin-top:10px}.phase-label{font-size:10px}.test-stats{gap:15px;font-size:11px}.save-status{min-width:105px;font-size:10px}.question-nav{margin:22px 0 28px;gap:8px}.question-button{height:35px;min-width:35px}.question-prompt{font-size:17px;margin-bottom:25px}.question-footer{align-items:flex-start;flex-direction:column}.question-footer .actions{width:100%}.question-footer>.button{width:100%}.inspector{gap:20px}.inspector p{font-size:11px}.summary-strip{grid-template-columns:1fr 1fr;margin-top:26px}.summary-item{padding:18px 8px 18px 0}.summary-number{font-size:27px}.summary-label{font-size:10px}.topic-result-head{align-items:flex-start;flex-direction:column;gap:9px}.topic-result-head h3{font-size:16px}.finding-dimensions{gap:13px;font-size:10px}.status{font-size:10px}.empty{padding:36px 0}.empty h2{font-size:24px}.empty p{font-size:13px}.empty-index{font-size:50px}.course-layout{gap:20px;margin-top:21px}.lesson section h3{font-size:16px}.lesson p{font-size:13px}.timeline-head{align-items:flex-start;flex-direction:column;gap:9px}.dev-layout{display:block}.session-list{border-right:0;border-bottom:1px solid var(--line);padding:0 0 20px;display:flex;overflow:auto;gap:8px;margin-bottom:25px}.session-item{min-width:180px;border:1px solid var(--line);border-radius:4px;padding:12px}.dev-control-bar .button{font-size:11px;padding:9px 12px}.dev-section{padding:22px 0}.personal-link{flex-wrap:wrap}.personal-link input{width:100%}.landing-shell{padding:26px 22px}.landing-top{align-items:flex-start;gap:12px}.landing{padding:60px 0 45px;gap:44px}.landing h1{font-size:48px;letter-spacing:-2.5px}.landing-copy{font-size:13px;margin:22px 0 27px}.link-form{flex-direction:column}.landing-aside{grid-template-columns:1fr;gap:0}.flow-step{padding:19px 0;border-bottom:1px solid var(--line)}.flow-step:first-child{padding-top:0}.flow-step h3{font-size:14px}.flow-step p{font-size:12px}.landing-footer{flex-direction:column;gap:10px}.dialog{padding:25px}.dialog h2{font-size:22px}.dialog .actions{gap:9px}.dialog .button{font-size:12px}.signin{margin:25px 0}.notice{font-size:12px;padding:13px 15px}.timeline-topic{gap:12px}.badge{font-size:9px}.user-row{align-items:flex-start}.loading{padding:50px 20px}.topbar .mode-dot{display:none}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media(max-width:680px){.nav-button{flex:1;min-width:0;min-height:51px;text-align:center;justify-content:center;line-height:1.3;padding:10px 4px}.nav-number{display:none}}
@media(max-width:380px){.brand-sub{display:none}.landing h1{font-size:42px}.topbar-right .mode{max-width:125px}}
@media print{.sidebar,.topbar,.no-print,.toast{display:none!important}.shell,.dev-layout,.course-layout{display:block}.main{padding:0}.workspace{width:100%}.page-head h1{font-size:25px}body{background:white}pre{max-height:none}.json-details[open]{break-inside:avoid}}
