:root{--paper:#f8f7f2;--white:#fffefa;--green:#254d41;--green-deep:#1e4036;--ink:#273e34;--muted:#73796f;--line:#e3e5dc;--orange:#ba6744;--pale:#edf0e5;--serif:Georgia,'Times New Roman',serif;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}a{color:inherit}button{cursor:pointer}button:disabled{opacity:.6;cursor:wait}button,input,select,a{ -webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #b86d44;outline-offset:4px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0)}.skip{position:fixed;z-index:20;top:8px;left:8px;padding:12px;background:white;transform:translateY(-150%)}.skip:focus{transform:translateY(0)}.loading{padding:50px;text-align:center}.muted{color:var(--muted);line-height:1.7}.eyebrow{font-size:10px;letter-spacing:1.9px;font-weight:700;line-height:1.6}.brand{text-decoration:none;display:flex;align-items:center;font-size:19px;font-weight:600;white-space:nowrap;letter-spacing:-.6px}.brand-icon{display:grid;place-items:center;width:28px;height:28px;margin-right:10px;background:#e8b178;color:var(--green);border-radius:8px;font-size:23px}.brand-dot{color:#e8b178}.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:44px;padding:13px 18px;border-radius:6px;text-decoration:none;font-size:12px;font-weight:600;border:1px solid transparent;white-space:nowrap;transition:background .15s,transform .15s}.primary{background:var(--green);color:#fff}.primary:hover{background:#163b30;transform:translateY(-1px)}.secondary{background:var(--white);border-color:#d4d9cb;color:var(--green)}.secondary:hover{background:#f0f2e9}.error{color:#a13930;font-size:13px;line-height:1.6}.error:empty{margin:0}.hint{font-size:11px;line-height:1.7;color:var(--muted)}.accent{color:var(--orange)}
.auth-page{min-height:100dvh;display:grid;grid-template-columns:1fr 1fr}.auth-story{background:var(--green);color:#f9f7e9;position:relative;padding:40px 48px;display:flex;flex-direction:column;min-height:760px;overflow:hidden}.story-content{max-width:470px;margin:auto}.story-content>.eyebrow{color:#d4b98e}.story-content h1{font:normal clamp(38px,4.5vw,64px)/1.12 var(--serif);letter-spacing:-1.6px;margin:18px 0 24px}.story-content>p:not(.eyebrow){font-size:14px;line-height:1.85;color:#cfdbd1}.story-footer{font-size:11px;color:#b9c8bc;letter-spacing:.6px;margin:0}.book-art{height:250px;width:370px;position:relative;margin:35px 0 0}.art-sun{position:absolute;background:#e5b676;width:145px;height:145px;border-radius:50%;top:9px;left:180px}.art-book{width:135px;height:185px;border-radius:3px 10px 10px 3px;position:absolute;top:38px;box-shadow:4px 7px 0 #102e2540}.book-back{background:#a9b8a0;left:175px;transform:rotate(14deg);border-left:9px solid #92a28c}.book-front{background:#ecdcc1;left:80px;transform:rotate(-11deg);border-left:10px solid #d3c1a2;padding:22px 15px;color:var(--green)}.book-front span{font:24px/1.1 var(--serif)}.book-front i{font:60px var(--serif);position:absolute;bottom:15px;right:20px}.art-line{width:315px;height:1px;background:#b0c2a2;position:absolute;bottom:8px;left:32px;transform:rotate(-3deg)}.art-star{color:#e5b676;position:absolute;left:25px;top:85px;font-size:43px}.auth-panel{display:grid;place-items:center;padding:48px 24px}.auth-box{width:100%;max-width:350px}.small-icon{display:grid;place-items:center;font-size:27px;width:48px;height:48px;border-radius:50%;background:#e9ecdf;margin-bottom:30px}.auth-box h2{font:normal 39px var(--serif);letter-spacing:-1px;margin:8px 0 12px}.auth-box>.muted{font-size:13px;margin-bottom:30px}form>label,.form-columns label{display:block;font-size:12px;font-weight:600;margin:20px 0 9px}input:not([type=file]){width:100%;padding:13px 14px;border:1px solid #d7dccf;border-radius:5px;background:var(--white);color:var(--ink);min-width:0}input::placeholder{color:#91968a}.auth-submit{width:100%;justify-content:space-between;margin:23px 0 16px}.private-note{padding-top:28px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);margin-top:20px}.private-note span{margin-right:6px}
.app{min-height:100dvh;display:flex}.sidebar{width:235px;flex:0 0 235px;background:var(--green);color:#f7f7e9;padding:34px 25px;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0}.sidebar .brand{font-size:17px}.sidebar .brand-icon{width:26px;height:26px;font-size:21px}.sidebar-label{font-size:9px;letter-spacing:1.5px;color:#c0cebf;margin:60px 12px 15px}.nav-link{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:12px;padding:14px 13px;border-radius:6px}.nav-link.active{background:#ffffff13;border:1px solid #ffffff13}.nav-link>span{font-size:19px}.sidebar-bottom{margin-top:auto}.sidebar-bottom>p{font:italic 22px/1.4 var(--serif);color:#c8d3b7;padding:30px 10px}.profile{border-top:1px solid #ffffff20;padding:22px 0 14px;display:flex;align-items:center;gap:10px}.avatar{background:#d9d4b7;color:var(--green);width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font:18px var(--serif)}.profile strong{font-size:12px;display:block}.profile div>span{display:block;font-size:9px;color:#c7d3c4;margin-top:6px}.logout{background:none;border:0;color:#ccd6ca;width:100%;text-align:left;font-size:11px;padding:10px 0}.logout>span{float:right}.workspace{margin-left:235px;flex:1;min-width:0}.topbar{height:77px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 45px;font-size:11px;color:var(--muted)}.topbar strong{font-weight:400;color:var(--ink)}.breadcrumb-separator{padding:0 14px;color:#b6bcaf}.private-badge{font-size:10px}.private-badge>span{font-size:7px;color:#7a8d60;margin-right:6px}.main{max-width:1450px;margin:0 auto;padding:48px 45px 24px}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:32px}.page-heading .eyebrow{color:#7c866f;margin:0 0 12px}.page-heading h1{font:normal clamp(30px,3.1vw,45px)/1.18 var(--serif);letter-spacing:-1.3px;margin:0 0 13px}.page-heading .muted{font-size:12px;margin:0}.page-heading>.button{flex-shrink:0}.intro-strip{border:1px solid #dce2cf;background:var(--pale);padding:21px 24px;border-radius:8px;display:flex;align-items:center;justify-content:space-between;gap:20px}.intro-strip>div{display:flex;align-items:center;gap:17px}.strip-icon{font-size:28px;color:#6e8056}.intro-strip strong{font:normal 20px var(--serif)}.intro-strip p{font-size:11px;color:#737d65;margin:8px 0 0}.count-badge{font-size:10px;border:1px solid #d2dbc5;padding:8px 12px;border-radius:20px;white-space:nowrap;background:#ffffff40}.collection{margin-top:38px;min-height:410px}.collection-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:18px}.collection h2{font-size:16px;font-weight:600;margin:0}.collection h2>span{font-size:10px;background:#e8ebdf;padding:5px 8px;border-radius:5px;margin-left:7px;font-weight:400}.sort-label{display:flex;align-items:center;gap:8px;font-size:10px;color:var(--muted)}select{background:var(--white);border:1px solid #dfe3d7;border-radius:5px;color:var(--ink);padding:12px;font-size:11px;max-width:100%}.sort-label select{padding:8px;border:0;background:transparent}.filters{display:grid;grid-template-columns:1fr 145px 145px;gap:12px;margin-bottom:24px}.filters select{width:100%;height:43px}.search{position:relative;display:flex;align-items:center}.search>span:not(.sr-only){position:absolute;left:14px;font-size:25px;color:#808b76}.search input{padding-left:42px;font-size:11px;height:43px}.empty{min-height:350px;text-align:center;border:1px dashed #d6ddcb;border-radius:8px;padding:38px 20px;background:#ffffff50}.empty-icon{font-size:34px;background:#eef0e5;border-radius:16px;width:66px;height:66px;display:grid;place-items:center;margin:0 auto 21px;color:#74815b}.empty>.eyebrow{color:#92977f;font-size:9px}.empty h3{font:normal 28px var(--serif);letter-spacing:-.4px;margin:10px 0}.empty>p:not(.eyebrow){font-size:12px;line-height:1.8;color:var(--muted);margin:12px 0 22px}.file-hint{display:block;font-size:10px;color:#838a79;margin-top:15px}.workspace-footer{border-top:1px solid var(--line);margin-top:35px;padding:21px 0 0;display:flex;justify-content:space-between;gap:20px;font-size:9px;color:#929787}.workspace-footer>span:last-child{font-weight:600;font-size:11px;letter-spacing:-.4px}
.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.lesson-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--white);text-decoration:none;transition:transform .15s,box-shadow .15s}.lesson-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px #294d4110}.card-art{height:125px;background:#e7ecdc;display:flex;align-items:center;justify-content:space-between;padding:25px;color:#65764a}.lesson-card:nth-child(3n+2) .card-art{background:#f0e4d7;color:#ae7658}.lesson-card:nth-child(3n+3) .card-art{background:#dde9e7;color:#527a73}.card-art>span:first-child{font:45px var(--serif)}.card-art>span:last-child{font-size:9px;letter-spacing:1.4px;border:1px solid currentColor;border-radius:4px;padding:6px;opacity:.7}.card-body{padding:20px;display:flex;flex-direction:column;flex:1}.card-tags{font-size:9px;text-transform:uppercase;letter-spacing:1px;color:#7d866f;min-height:12px}.card-title{font:normal 24px/1.2 var(--serif);letter-spacing:-.4px;margin:13px 0 23px;overflow-wrap:anywhere}.card-footer{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:auto;border-top:1px solid var(--line);padding-top:15px;font-size:9px;color:var(--muted)}.card-footer strong{font-size:11px;color:var(--green);font-weight:600}
dialog{border:1px solid #e1e5d8;border-radius:12px;padding:30px;max-width:550px;width:calc(100% - 32px);max-height:calc(100dvh - 32px);background:var(--paper);color:var(--ink)}dialog::backdrop{background:#17372dc0;backdrop-filter:blur(3px)}.dialog-heading{display:flex;align-items:start;justify-content:space-between;gap:20px}.dialog-heading .eyebrow{font-size:9px;margin:0 0 8px;color:#8b947c}.dialog-heading h2{font:normal 32px var(--serif);margin:0}.icon-button{border:0;background:transparent;font-size:28px;color:var(--green);width:36px;height:36px}.dialog-heading+.muted{font-size:12px;margin:12px 0 25px}.file-picker{display:flex;align-items:center;flex-direction:column;position:relative;gap:8px;background:#edf0e5;padding:23px 14px;border:1px dashed #bbc9aa;border-radius:7px;cursor:pointer;text-align:center}.file-picker>span:first-child{font-size:28px}.file-picker>strong{font-size:12px;overflow-wrap:anywhere;max-width:100%}.file-picker>span{font-size:10px;color:var(--muted)}.file-picker input{max-width:100%;font-size:11px;margin-top:10px}.form-columns{display:grid;grid-template-columns:1fr 1fr;gap:15px}.optional{font-weight:400;color:var(--muted);font-size:10px;margin-left:5px}dialog input:not([type=file]){font-size:12px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;padding-top:15px}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);border:1px solid #d8ddca;background:var(--green);color:white;padding:15px 22px;border-radius:7px;font-size:12px;z-index:10;box-shadow:0 8px 30px #0002}.viewer{height:100dvh;display:flex;flex-direction:column}.viewer-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 18px;border-bottom:1px solid var(--line)}.viewer-toolbar h1{font:normal 21px var(--serif);margin:0;overflow-wrap:anywhere}.viewer iframe{border:0;width:100%;flex:1;background:white}.viewer>.error{padding:0 20px}
@media(min-width:1600px){.auth-story{padding:45px 65px}.story-content{max-width:520px}}
@media(max-width:1150px){.sidebar{width:205px;flex-basis:205px;padding:30px 20px}.sidebar .brand{font-size:14px}.workspace{margin-left:205px}.main{padding:38px 28px 24px}.topbar{padding:0 28px}.page-heading{align-items:start}.page-heading h1{font-size:35px}.page-heading .muted{max-width:350px}.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.filters{grid-template-columns:1fr 125px 125px}.intro-strip strong{font-size:18px}.auth-story{padding:32px}.book-art{transform:scale(.85);transform-origin:left center;width:300px}.auth-story .brand{font-size:17px}}
@media(max-width:800px){.auth-page{grid-template-columns:1fr}.auth-story{min-height:0;padding:25px}.story-content{margin:45px 0 15px}.story-content h1{font-size:42px}.story-content>p:not(.eyebrow){font-size:12px}.book-art,.story-footer{display:none}.auth-panel{padding:40px 25px}.small-icon{display:none}.auth-box{max-width:440px}.auth-box h2{font-size:34px}.sidebar{width:76px;flex-basis:76px;padding:25px 13px}.sidebar .brand{font-size:0;justify-content:center}.sidebar .brand-icon{font-size:23px;margin:0;width:35px;height:35px}.sidebar-label,.nav-link,.sidebar-bottom>p,.profile,.logout>span{display:none}.logout{font-size:9px;text-align:center;min-height:44px}.workspace{margin-left:76px}.main{padding:30px 22px 20px}.topbar{height:65px;padding:0 22px}.topbar .private-badge{font-size:9px}.page-heading{flex-direction:column;gap:20px;margin-bottom:24px}.page-heading h1{font-size:36px}.page-heading .muted{max-width:none}.intro-strip{padding:18px}.intro-strip strong{font-size:19px}.intro-strip p{font-size:10px;line-height:1.6}.strip-icon{display:none}.intro-strip .count-badge{display:none}.filters{grid-template-columns:1fr 1fr}.search{grid-column:1/-1}.collection{margin-top:29px}.lesson-grid{gap:15px}.card-body{padding:17px}.card-title{font-size:23px}.workspace-footer{line-height:1.6}.workspace-footer>span:first-child{max-width:240px}}
@media(max-width:480px){.sidebar{position:static;flex-basis:auto;width:auto;flex-direction:row;align-items:center;padding:16px 20px;gap:20px}.sidebar .brand{font-size:16px}.sidebar .brand-icon{width:27px;height:27px;margin-right:10px}.sidebar-bottom{margin:0 0 0 auto}.logout{font-size:10px;min-height:32px}.app{flex-direction:column}.workspace{margin-left:0}.topbar{height:49px;padding:0 20px;font-size:10px}.private-badge{display:none}.main{padding:28px 20px 20px}.page-heading h1{font-size:34px}.page-heading>.button{width:100%}.page-heading .eyebrow{font-size:8px}.intro-strip strong{font-size:18px}.intro-strip p{font-size:11px}.lesson-grid{grid-template-columns:1fr}.sort-label{gap:0;font-size:0}.sort-label select{font-size:10px;padding-right:0}.collection h2{font-size:15px}.empty{padding:30px 15px}.empty h3{font-size:27px}.workspace-footer{font-size:8px;gap:15px}.workspace-footer>span:first-child{max-width:190px}.form-columns{grid-template-columns:1fr;gap:0}dialog{padding:24px}.viewer-toolbar{flex-wrap:wrap;gap:10px}.viewer-toolbar h1{width:100%;order:3;font-size:18px}.viewer-toolbar .button{font-size:10px;padding:10px}.toast{width:calc(100% - 40px);text-align:center}}
.version-badge{align-self:flex-start;display:inline-flex;font-size:10px;line-height:1.5;background:#f4e9d7;color:#805b30;border:1px solid #e8d8bd;padding:5px 9px;border-radius:5px;margin:-9px 0 18px}
.lesson-actions{display:flex;flex-direction:column;gap:10px;flex-shrink:0}.lesson-actions .button{width:100%;justify-content:center}.light-green{background:#e2ebd8;color:var(--green);border:1px solid #d0dfc3}.light-green:hover{background:#d6e3c9}.light-green:disabled{opacity:.55;cursor:not-allowed}#update-selection{width:100%;margin-top:8px}#update-current{overflow-wrap:anywhere}#update-dialog .file-picker{margin-top:18px}@media(max-width:480px){.lesson-actions{width:100%}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}