@font-face{font-family:Instrument;src:local('Instrument Serif'),url('https://fonts.gstatic.com/s/instrumentserif/v5/jizBRFtNs2ka5fXjeivQ4LroWlx-2zI.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:Satoshi;src:local('Satoshi'),url('https://cdn.fontshare.com/wf/TTX2Z3BF3P6Y5BQT3IV2VNOK6FL22KUT/7QYRJOI3JIMYHGY6CH7SOIFRQLZOLNJ6/KFIAZD4RUMEZIYV6FQ3T3GP5PDBDB6JY.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:Satoshi;src:url('https://cdn.fontshare.com/wf/LAFFD4SDUCDVQEXFPDC7C53EQ4ZELWQI/PXCT3G6LO6ICM5I3NTYENYPWJAECAWDD/GHM6WVH6MILNYOOCXHXB5GTSGNTMGXZR.woff2') format('woff2');font-weight:600 800;font-display:swap}
:root{font-family:Satoshi,Arial,sans-serif;color:#18203A;background:#fff;font-size:16px;--blue:#3054DE;--muted:#536083;--line:#e1e5ee;--lavender:#F1EDFF;--yellow:#FFF1AD;--pink:#FFE8F4;--pale:#EDF3FF;--teaching:18px;letter-spacing:0}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #3054DE;outline-offset:4px}h1,h2,h3,p{margin-top:0}h1,h2,.serif{font-family:Instrument,Georgia,serif;font-weight:400}h1{font-size:42px;line-height:1.14;margin-bottom:16px}h2{font-size:30px;line-height:1.2}h3{font-size:18px}p{line-height:1.65}button{border:0;background:none;color:inherit}.shell{min-height:100vh;display:grid;grid-template-columns:230px minmax(0,1fr)}.sidebar{border-right:1px solid var(--line);padding:32px 22px;display:flex;flex-direction:column;gap:28px;position:sticky;top:0;height:100vh}.brand{font-family:Instrument,Georgia,serif;font-size:34px;color:#18203A;display:flex;align-items:center;gap:10px}.brand svg{color:var(--blue);width:27px;height:27px}.brand:hover{text-decoration:none}.brand-small{font:12px Satoshi,Arial,sans-serif;color:var(--muted);margin:8px 0 0 38px}.sidebar nav{display:flex;flex-direction:column;gap:8px}.navlink{display:flex;gap:12px;align-items:center;padding:13px 14px;border-radius:8px;color:var(--muted);font-size:15px}.navlink:hover{text-decoration:none;background:#f7f8fc}.navlink.active{background:var(--pale);color:var(--blue);font-weight:600}.navlink svg{width:20px;height:20px}.side-bottom{margin-top:auto;border-top:1px solid var(--line);padding-top:20px;display:grid;gap:12px}.avatar{width:36px;height:36px;background:var(--lavender);border-radius:50%;display:grid;place-items:center;font-size:15px;flex-shrink:0}.identity{display:flex;align-items:center;gap:10px;min-width:0}.identity strong{font-size:14px}.identity small{display:block;color:var(--muted);font-size:12px;margin-top:4px}.topbar{height:88px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 44px;gap:12px}.breadcrumb{font-size:14px;color:var(--muted)}.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:11px 18px;border-radius:8px;font-size:14px;font-weight:600;border:1px solid var(--line);background:white;text-align:center}.btn svg{width:18px;height:18px}.btn:hover{text-decoration:none;background:#f7f8fc}.btn.primary{background:var(--blue);border-color:var(--blue);color:white}.btn.primary:hover{background:#2445c5}.btn.quiet{border-color:transparent;background:transparent;color:var(--muted)}.iconbtn{width:44px;height:44px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:8px;flex-shrink:0}.iconbtn svg{width:19px;height:19px}.page{max-width:1200px;margin:auto;padding:44px;min-width:0}.eyebrow{text-transform:uppercase;letter-spacing:1.3px;font-size:11px;font-weight:700;color:var(--muted);margin-bottom:12px}.muted{color:var(--muted)}.intro{display:flex;align-items:flex-start;justify-content:space-between;gap:28px;margin-bottom:32px}.intro p{margin:0;color:var(--muted);max-width:540px}.ring-wrap{display:flex;align-items:center;gap:14px;min-width:200px;padding-top:5px}.ring{width:64px;height:64px;border-radius:50%;background:conic-gradient(var(--blue) var(--progress),#e9edfa 0);display:grid;place-items:center;flex-shrink:0}.ring:before{content:attr(data-label);width:52px;height:52px;border-radius:50%;background:#fff;display:grid;place-items:center;font-size:17px;font-weight:600;font-variant-numeric:tabular-nums}.ring-wrap strong{font-size:14px}.ring-wrap small{display:block;font-size:12px;color:var(--muted);margin-top:5px}.continue-band{display:grid;grid-template-columns:1fr 43%;align-items:center;gap:24px;background:var(--pale);padding:30px 32px;border-top:1px solid #dfe6fa;border-bottom:1px solid #dfe6fa;margin:0 -44px 36px;padding-left:44px;padding-right:44px}.continue-band h2{font-size:34px;margin-bottom:12px;max-width:400px}.continue-band p{color:var(--muted);max-width:430px;font-size:16px}.continue-band img{width:100%;height:230px;object-fit:contain;mix-blend-mode:multiply}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:28px 0 18px;gap:12px}.section-heading h2{font-size:26px;margin:0}.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 9px;border-radius:5px;font-size:11px;font-weight:600;background:var(--lavender);white-space:normal}.tag svg{width:13px;height:13px}.tag.yellow{background:var(--yellow)}.tag.blue{background:var(--pale)}.tag.pink{background:var(--pink)}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.topic-card{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:white;min-width:0;transition:transform .15s,border-color .15s}.topic-card:hover{transform:translateY(-2px);border-color:#bcc8ef}.topic-picture{height:160px;display:grid;place-items:center;padding:16px;background:var(--pale)}.topic-picture img{height:100%;width:100%;object-fit:contain;mix-blend-mode:multiply}.topic-picture svg{width:65px;height:65px;stroke-width:1;color:#536083}.topic-content{padding:22px}.topic-content h3{font-family:Instrument,Georgia,serif;font-size:25px;font-weight:400;margin:12px 0}.topic-content p{font-size:14px;color:var(--muted);min-height:45px}.topic-content .btn{width:100%;margin-top:12px}.blue{background:var(--pale)}.lavender{background:var(--lavender)}.yellow{background:var(--yellow)}.pink{background:var(--pink)}.empty{padding:30px 0;color:var(--muted);line-height:1.6}.notice{padding:14px 18px;border-left:3px solid var(--blue);background:var(--pale);font-size:14px;line-height:1.65;margin:18px 0;white-space:pre-wrap;overflow-wrap:anywhere}.notice.error{background:#fff0f0;border-color:#b13737;color:#8d2020}.notice.success{background:#eef9f2;border-color:#248157;color:#1b6142}.study-layout{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:44px}.arc{display:flex;gap:4px;margin:0 0 32px;list-style:none;padding:0}.arc li{flex:1;min-width:0;border-top:4px solid #e7eaf2;padding-top:10px;font-size:11px;color:var(--muted)}.arc li.active{border-color:var(--blue);color:var(--blue);font-weight:700}.arc li.done{border-color:#a9b8ed}.study h1{font-size:36px}.teaching{font-size:var(--teaching);line-height:1.65;white-space:pre-line}.study-figure{margin:24px 0}.study-figure img{width:100%;max-height:370px;object-fit:contain;background:#fff}.study-figure button{width:100%;padding:0}.study-figure figcaption{font-size:13px;color:var(--muted);line-height:1.6;margin-top:10px}.study-figure details{font-size:13px;padding:12px 0}.study-footer{display:flex;justify-content:space-between;gap:16px;padding-top:26px;margin-top:24px;border-top:1px solid var(--line)}.study-aside{border-left:1px solid var(--line);padding-left:24px}.study-aside h3{font-size:13px;text-transform:uppercase;letter-spacing:1px;margin-bottom:20px}.idea{font-size:14px;padding:0 0 20px;line-height:1.5;display:flex;gap:10px}.dot{width:9px;height:9px;border-radius:50%;background:#d7dff6;display:inline-block;flex-shrink:0;margin-top:7px}.dot.progress{background:var(--blue)}.idea small{display:block;color:var(--muted);font-size:11px;margin-top:6px}.reveal{background:var(--yellow);padding:20px 24px;margin:20px 0;font-size:var(--teaching);line-height:1.65}.field{display:grid;gap:8px;margin:16px 0}.field label,fieldset legend{font-size:14px;font-weight:600}.field input,.field select,.field textarea,input[type=text],input[type=password],input[type=email],select,textarea{width:100%;border:1px solid #bec7db;border-radius:8px;padding:12px 14px;color:#18203A;background:white;min-height:46px}textarea{min-height:110px;resize:vertical;line-height:1.55}label.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.5;margin:14px 0}input[type=checkbox],input[type=radio]{width:19px;height:19px;accent-color:var(--blue);flex-shrink:0}.question{border-top:1px solid var(--line);padding:26px 0}.question h3{font-size:20px;line-height:1.5;margin-bottom:18px}.options{display:grid;gap:10px}.option{display:flex;align-items:center;gap:12px;padding:15px;border:1px solid #d7deeb;border-radius:10px;min-height:54px;font-size:16px;cursor:pointer}.option:has(input:checked){background:var(--pale);border-color:var(--blue)}.question-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:center;margin:12px 0}.form-narrow{max-width:480px;margin:0 auto}.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin:22px 0}.tabs button{padding:12px 20px;font-size:14px;border-bottom:3px solid transparent}.tabs button.active{border-color:var(--blue);color:var(--blue)}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:32px}.row{padding:20px 0;border-bottom:1px solid var(--line)}.row-top{display:flex;justify-content:space-between;gap:14px;align-items:center}.row h3{margin:0 0 6px}.row p{margin:0;color:var(--muted);font-size:14px}.note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.note{padding:24px;border-radius:16px;background:var(--pink);min-height:180px;display:flex;flex-direction:column}.note p{white-space:pre-wrap;overflow-wrap:anywhere}.note footer{margin-top:auto;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}.history-days{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}.day{border:1px solid var(--line);border-radius:8px;padding:12px;font-size:13px}.day.studied{background:var(--pale);border-color:#bfccf1}.studio-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:30px}.draft-list{border-right:1px solid var(--line);padding-right:20px}.draft-list button{display:block;text-align:left;width:100%;padding:14px;border-radius:8px;margin-bottom:8px}.draft-list button.active{background:var(--pale);color:var(--blue)}.draft-list small{display:block;margin-top:6px;color:var(--muted);font-size:11px}.studio h1{font-size:34px}.studio h2{font-size:25px}.studio .teaching{font-size:16px}.editor{font-family:monospace;min-height:350px;font-size:12px}.asset-row{display:grid;grid-template-columns:190px 1fr;gap:24px;padding:24px 0;border-bottom:1px solid var(--line)}.asset-row img{width:100%;height:160px;object-fit:contain;background:repeating-conic-gradient(#f4f4f4 0% 25%,#fff 0% 50%) 0/20px 20px}.asset-row p{font-size:14px}.jobs{font-size:13px}.jobs p{margin:6px 0}.small{font-size:13px}.statusline{display:flex;gap:10px;align-items:center;margin:12px 0;font-size:13px}.statusline svg{width:16px;height:16px}.review-checks{display:grid;grid-template-columns:1fr 1fr;gap:12px}.review-checks .btn{justify-content:flex-start}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:13px}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--muted);font-weight:600}td p{margin:0;font-size:13px}code{font-size:12px;overflow-wrap:anywhere}.code{font-family:monospace;font-size:28px;letter-spacing:6px;background:var(--yellow);padding:18px;display:inline-block}.claim{margin-top:24px}.reading-tools{display:flex;gap:8px;align-items:center}.map-path{border-left:2px solid #d8e0f5;margin-left:18px;padding-left:32px}.map-stop{position:relative;padding:20px 0}.map-stop:before{content:'';width:14px;height:14px;border:3px solid var(--blue);border-radius:50%;position:absolute;left:-43px;top:29px;background:#fff}.map-stop h2{margin:0 0 10px}.completion{max-width:620px;padding:32px 0}.completion .checkmark{width:64px;height:64px;display:grid;place-items:center;background:var(--yellow);border-radius:50%;margin-bottom:24px}.loading{padding:60px;color:var(--muted)}#toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);max-width:min(90vw,650px);background:#18203A;color:white;padding:14px 22px;border-radius:8px;z-index:100;box-shadow:0 6px 25px #18203a20;display:none;font-size:14px;white-space:pre-wrap}dialog{border:1px solid var(--line);border-radius:16px;padding:28px;max-width:min(900px,94vw);width:100%;max-height:90vh;overflow:auto;color:#18203A}dialog::backdrop{background:#18203a70}dialog img{width:100%;object-fit:contain}dialog .close-row{display:flex;justify-content:flex-end;margin-bottom:14px}.zoom-image{overflow:auto;max-height:70vh}.zoom-image img{min-width:850px}.skip{position:absolute;top:-100px}.skip:focus{top:10px;left:10px;background:white;padding:15px;z-index:200}.mobile-brand{display:none}.help-panel{margin-top:24px;padding-top:24px;border-top:1px solid var(--line)}fieldset{border:0;padding:0;margin:0}.split-actions{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.preserve{white-space:pre-wrap;overflow-wrap:anywhere}.plain-list{padding-left:20px;line-height:1.7}.alert-item{border-left:3px solid #ad3c4a;background:var(--pink);padding:16px;margin:12px 0}.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.subtle-rule{border:0;border-top:1px solid var(--line);margin:26px 0}
@media(max-width:1100px){.shell{grid-template-columns:190px minmax(0,1fr)}.sidebar{padding:28px 14px}.page{padding:30px}.topbar{padding:0 30px}.continue-band{margin-left:-30px;margin-right:-30px;padding-left:30px;padding-right:30px}.study-layout{grid-template-columns:minmax(0,1fr)}.study-aside{border-left:0;border-top:1px solid var(--line);padding:24px 0}.study-aside .ideas{display:flex;gap:22px}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.intro{flex-wrap:wrap}.studio-layout{grid-template-columns:180px minmax(0,1fr)}}
@media(max-width:720px){.shell{display:block}.sidebar{height:auto;position:static;padding:14px 18px;border-right:0;border-bottom:1px solid var(--line);gap:12px}.brand{font-size:28px}.brand-small,.side-bottom{display:none}.sidebar nav{flex-direction:row;overflow-x:auto;gap:4px}.navlink{padding:11px 12px;font-size:12px;white-space:nowrap;gap:7px}.navlink svg{width:17px;height:17px}.topbar{height:auto;min-height:64px;padding:12px 20px;flex-wrap:wrap}.page{padding:26px 20px}.breadcrumb{font-size:12px}h1{font-size:34px}.intro{gap:18px;margin-bottom:24px}.intro p{font-size:14px}.ring-wrap{min-width:0}.ring{width:50px;height:50px}.ring:before{width:40px;height:40px;font-size:13px}.continue-band{grid-template-columns:1fr;margin:0 -20px 28px;padding:26px 20px;gap:8px}.continue-band img{height:180px;grid-row:1}.continue-band h2{font-size:30px}.topic-grid,.note-grid,.two-col{grid-template-columns:1fr}.topic-picture{height:180px}.arc{gap:3px;overflow:auto;padding-bottom:6px}.arc li{min-width:55px;font-size:10px}.study h1{font-size:30px}.study-layout{gap:20px}.study-aside .ideas{display:block}.study-footer{align-items:flex-start}.studio-layout{display:block}.draft-list{border-right:0;border-bottom:1px solid var(--line);display:flex;overflow:auto;padding:0;margin-bottom:24px}.draft-list button{min-width:160px}.asset-row{grid-template-columns:1fr}.asset-row img{height:220px}.review-checks{grid-template-columns:1fr}.tabs{overflow:auto}.tabs button{padding:12px 14px;white-space:nowrap}.row-top{align-items:flex-start;flex-wrap:wrap}.section-heading{align-items:flex-start}.pair{grid-template-columns:1fr}.form-narrow{margin:0}.toolbar{gap:6px}.toolbar .btn{padding:9px 12px}.teaching{font-size:var(--teaching)}}
.asset-row .enlarge{display:block;width:100%;padding:0}.asset-row .enlarge img{display:block}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.arc{overflow:visible;padding-bottom:0}
.arc li{position:relative;min-width:0;height:6px;border:0;padding:0;background:#e7eaf2;border-radius:3px}
.arc li.done{background:#a9b8ed}
.arc li.active{background:var(--blue);outline:2px solid var(--blue);outline-offset:3px}
.full{width:100%;justify-content:center}
.auth-divider{display:flex;align-items:center;gap:16px;margin:24px 0;color:var(--muted);font-size:14px}
.auth-divider:before,.auth-divider:after{content:'';height:1px;flex:1;background:var(--line)}
.source-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:48px}
.source-layout>section:first-child{border-right:1px solid var(--line);padding-right:28px}
.source-row{display:flex;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:18px 0;overflow-wrap:anywhere}
.source-row small{display:block;color:var(--muted)}
.source-row .tag{align-self:start;flex-shrink:0}
.brand{font-size:28px}
.catalog-filters{display:flex;gap:20px;flex-wrap:wrap;margin:20px 0}
.catalog-filters .field{margin:0;min-width:160px;flex:1}
input[readonly]{background:#EDF3FF}
[hidden]{display:none!important}
@media(max-width:720px){.source-layout{grid-template-columns:1fr;gap:28px}.source-layout>section:first-child{border-right:0;padding-right:0;border-bottom:1px solid var(--line);padding-bottom:28px}.source-row{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}