body.teacher-app[data-palette], body.teacher-app {
  --bg:#f5f6f8; --bg2:#edf0f3; --card:#fff; --card2:#f6f7f9;
  --ink:#20262c; --ink2:#48515c; --ink3:#65717c; --ink4:#82909c;
  --line:#e3e7eb; --line2:#ced5dc; --line3:#a8b5be;
  --teacher-accent:#176852; --orange:#176852; --orange2:#287e66;
  --shadow:0 1px 3px #1423330a; --shadow-lg:0 8px 30px #14233312;
  --maxw:1380px; --r:8px; --r-sm:6px; --r-lg:8px;
  background:var(--bg); font-size:14px; padding-bottom:0;
}
html[data-theme="dark"] body.teacher-app {
  --bg:#17191c; --bg2:#22252a; --card:#21252a; --card2:#282d33;
  --ink:#edf1f5; --ink2:#ccd4dc; --ink3:#abb7c2; --ink4:#8393a0;
  --line:#343c44; --line2:#45525d; --line3:#687988;
  --teacher-accent:#69c7a7; --orange:#69c7a7; --orange2:#80dabb;
}
.teacher-app h1,.teacher-app h2,.teacher-app h3,.teacher-app .dpp-h {font-family:var(--sans);letter-spacing:0}
.teacher-app h1{font-size:28px;line-height:1.25;margin:5px 0 8px;font-weight:700}
.teacher-app .page{padding:32px 0 50px}
.teacher-app .wrap{padding-inline:32px}
.teacher-app .btn,.teacher-app .btn.sm,.teacher-app .btn.lg{border-radius:6px;font-size:13px;padding:10px 15px;white-space:normal;box-shadow:none;min-height:40px;line-height:1.4}
.teacher-app .btn.sm{padding:7px 11px;min-height:34px;font-size:12px}
.teacher-app .btn.pri,.teacher-app .btn.orange{background:#176852;color:white;border:1px solid #176852;box-shadow:0 1px 2px #102a201a}
.teacher-app .btn:hover{transform:none;filter:brightness(.97)}
.teacher-app .icon-btn{border-radius:6px;width:36px;height:36px}
.teacher-app svg.lucide{width:18px;height:18px;flex:0 0 auto;stroke-width:1.7;vertical-align:middle}
.teacher-app .nav{background:var(--card);backdrop-filter:none}
.teacher-app .nav-in{padding:14px 32px;gap:26px}
.teacher-app .brand{font:700 18px var(--sans);gap:10px}
.teacher-app .brand strong{font-weight:500;color:var(--ink3)}
.teacher-app .brand .mark{background:#176852;border-radius:6px;box-shadow:none;width:32px;height:32px;font-family:Georgia,serif;font-size:23px}
.teacher-app .brand img.faculty-logo{display:block;width:38px;height:38px;object-fit:contain;flex-shrink:0}
html[data-theme="dark"] .teacher-app .brand img.faculty-logo{filter:brightness(0) invert(1)}
.teacher-app .nav-links{gap:4px}
.teacher-app .nav-links a{font-size:13px;display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:5px;white-space:nowrap}
.teacher-app .nav-links a.on{background:var(--bg2);color:var(--teacher-accent);box-shadow:none}
.teacher-beta{font-size:10px;font-weight:700;color:var(--ink3);white-space:nowrap}
.teacher-app .mobile-menu a{display:flex;align-items:center;justify-content:center;gap:8px;font-size:12px}
.faculty-main{max-width:var(--maxw);padding:32px;margin:auto;min-height:calc(100vh - 150px)}
.faculty-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}
.faculty-heading>div{min-width:0}
.faculty-heading p{margin:0;color:var(--ink3);font-size:13px}
.faculty-heading .faculty-kicker,.faculty-kicker{font-size:10px;font-weight:700;color:var(--teacher-accent);margin:0 0 6px}
.faculty-status{display:flex;align-items:center;gap:7px;color:var(--ink3);font-size:12px;white-space:nowrap}
.teacher-app .teacher-quality-note{margin:0;border-color:var(--line);padding:10px 0;font-size:12px}
.teacher-quality-note summary{cursor:pointer;color:var(--ink3)}
.teacher-quality-note p{margin:8px 0;max-width:850px}
.teacher-app .paper-vault{margin:0;padding:15px 0;border-top:0}
.teacher-app .dppgrid{margin-top:24px;grid-template-columns:minmax(290px,340px) minmax(0,1fr);gap:32px}
.teacher-app .dpp-panel{padding-top:0;padding-right:0}
.teacher-app .dpp-h{font-size:16px;margin:0 0 18px}
.teacher-app .dlabel{font-size:12px}
.teacher-app .dhint{font-size:10px;font-weight:400}
.teacher-app .chip,.teacher-app .dbal-opt{border-radius:4px;font-size:11px;padding:6px 9px;line-height:1.4;min-height:30px}
.teacher-app .chips-scroll{max-height:175px}
.teacher-app .chip.on,.teacher-app .dbal-opt.on{background:#176852;color:white;border-color:#176852}
.teacher-app .dpp-preview{background:var(--card);border:1px solid var(--line);border-radius:8px;min-height:580px}
.teacher-app .dpp-empty{min-height:580px;padding:40px 22px}
.teacher-app .dpp-empty>svg{width:62px;height:76px;color:#849fb1;stroke-width:1.1;margin-bottom:20px}
.teacher-app .dpp-empty h3{font:600 18px var(--sans)}
.teacher-app .dpp-empty p{font-size:12px;margin-bottom:15px}
.teacher-app .dpp-empty a{font-size:12px;color:var(--teacher-accent);text-decoration:underline;text-underline-offset:4px}
.teacher-app .eligible-count b{font-family:var(--sans);font-size:23px}
.teacher-app .worksheet{border:0;box-shadow:none}
.teacher-app .worksheet h1,.teacher-app .worksheet h2,.teacher-app .worksheet h3{font-family:Georgia,serif}
.teacher-app .dpp-preview-bar{padding:16px;border-bottom:1px solid var(--line);gap:12px}
.teacher-app .dpp-preview-bar>div:first-child b,.teacher-app .dpp-preview-bar>div:first-child span{white-space:normal}
.teacher-app .dpp-note{font-size:11px;color:var(--ink3)}
.faculty-templates{padding:18px 0 22px;border-block:1px solid var(--line);margin-bottom:12px}
.template-heading{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.template-heading h2{font-size:14px;margin:0}.template-heading>span{color:var(--ink3);font-size:11px}
.template-presets{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:9px}
.template-preset{display:flex;gap:10px;align-items:start;text-align:left;padding:13px 10px;border:1px solid var(--line2);border-radius:6px;background:var(--card);color:var(--ink);cursor:pointer;min-height:72px;min-width:0}
.template-preset:hover,.template-preset:focus-visible{border-color:var(--teacher-accent);background:var(--bg2)}
.template-preset>svg{margin-top:2px;color:var(--teacher-accent)}
.template-preset span{min-width:0}.template-preset b{font:600 12px/1.5 var(--sans);display:block;overflow-wrap:anywhere}
.template-preset small{display:block;font:400 10px/1.5 var(--sans);color:var(--ink3);margin-top:4px}
.template-personal{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:16px}
.template-personal>label{font-size:12px;font-weight:600;margin-right:4px}
.template-personal select{width:230px;max-width:100%;min-width:0}
.template-suggestion{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:14px;font-size:12px;color:var(--ink2)}
.library-tools{display:flex;gap:14px;align-items:end;flex-wrap:wrap;margin:14px 0}
.library-tools>label{display:flex;flex-direction:column;gap:6px;font-size:11px;color:var(--ink3);flex:1 1 180px;min-width:0}
.library-tools input,.library-tools select,.template-personal select,.library-tags-label input,.library-tags-label select{font:400 13px var(--sans);color:var(--ink);background:var(--card);border:1px solid var(--line2);border-radius:5px;height:38px;padding:8px 10px;max-width:100%;min-width:0}
.library-tags-label{display:flex;flex-direction:column;gap:7px;font-size:11px;color:var(--ink3);font-weight:600}
.library-tags-label input,.library-tags-label select{width:100%}.solution-choice{margin:6px 0 16px 24px}
.teacher-app .saved-paper{gap:12px;align-items:center}.saved-paper-info{flex:1;min-width:0}
.teacher-app .saved-paper-info b{display:block;white-space:normal;overflow-wrap:anywhere}.saved-paper-info>span{display:block}.saved-paper-info small{display:block;color:var(--ink3);font-size:11px;margin-top:5px;overflow-wrap:anywhere}
.library-select{display:flex;align-items:center;justify-content:center;min-width:28px;min-height:36px}
.library-select input{width:17px;height:17px;accent-color:var(--teacher-accent)}
.library-message{font-size:12px;color:var(--teacher-accent);margin:10px 0;line-height:1.6}.library-message:empty{display:none}
.teacher-app .saved-paper-actions{flex-shrink:0;align-items:center}
.teacher-app .paper-vault-list{max-height:330px}
.teacher-app .paper-vault-head p{max-width:560px;line-height:1.65}
.teacher-app .ws-brand{overflow-wrap:anywhere}
.teacher-app footer{background:var(--card);padding:22px 0;border-top:1px solid var(--line);font-size:11px}
.teacher-app .foot-in{gap:20px}
.teacher-app .foot-links{gap:20px}
.faculty-policy{max-width:850px;line-height:1.85}
.faculty-policy h2{font-size:18px;margin-top:32px}
.faculty-policy p{color:var(--ink2)}
/* Tool rail and document work surface. */
.mat-layout{display:grid;grid-template-columns:215px minmax(0,1fr);gap:40px}
.mat-nav{border-right:1px solid var(--line);padding-right:22px}
.mat-nav h2{font-size:13px;margin:4px 0 20px;color:var(--ink3)}
.mat-nav nav{display:flex;flex-direction:column;gap:5px}
.mat-nav button{display:flex;align-items:center;gap:12px;text-align:left;padding:12px 10px;border:0;border-radius:5px;background:transparent;font:500 13px var(--sans);color:var(--ink2);cursor:pointer}
.mat-nav button:hover{background:var(--bg2)}
.mat-nav button.active{background:var(--card);color:var(--teacher-accent);box-shadow:inset 3px 0 0 var(--teacher-accent)}
.mat-nav>p{font-size:11px;line-height:1.9;color:var(--ink2);margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.mat-nav>p svg{margin-right:5px;color:var(--teacher-accent)}
.mat-nav>p span{color:var(--ink3)}
.mat-work{min-width:0}
.mat-drop{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px dashed var(--line3);border-radius:6px;padding:26px;background:var(--card)}
.mat-drop.drag{outline:2px solid var(--teacher-accent);background:var(--bg2)}
.mat-drop>div{display:grid;grid-template-columns:32px minmax(0,1fr);gap:4px 12px;align-items:center}
.mat-drop>div svg{grid-row:span 2;width:26px;height:26px;color:var(--teacher-accent)}
.mat-drop strong{font-size:14px;font-weight:600}
.mat-drop span{font-size:11px;color:var(--ink3)}
.mat-upload{position:relative;overflow:hidden;flex-shrink:0}
.mat-upload input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.mat-upload:focus-within{outline:2px solid var(--teacher-accent);outline-offset:3px}
.mat-toolbar{display:flex;align-items:center;justify-content:space-between;padding:20px 0 12px;font-size:12px;color:var(--ink3)}
.mat-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:190px;color:var(--ink3);font-size:13px}
.mat-empty>svg{width:36px;height:42px;color:#829cac}
.mat-files{border-top:1px solid var(--line)}
.mat-file{display:flex;align-items:center;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);min-width:0}
.mat-thumb{width:62px;height:76px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:var(--bg2);border:1px solid var(--line);border-radius:4px;padding:5px}
.mat-thumb canvas{max-width:100%;max-height:100%;object-fit:contain;background:white;box-shadow:0 1px 4px #0002}
.mat-file-info{min-width:0;flex:1;font-size:12px}
.mat-file-info b{display:block;overflow-wrap:anywhere;font-weight:600;line-height:1.5}
.mat-file-info small{display:block;color:var(--ink3);margin-top:3px;font-size:10px}
.mat-file-actions{display:flex;gap:4px;flex-shrink:0}
.mat-icon{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background:var(--card);border:1px solid var(--line2);border-radius:5px;color:var(--ink2);cursor:pointer;flex-shrink:0}
.mat-icon:hover{border-color:var(--teacher-accent);color:var(--teacher-accent)}
.teacher-app button:disabled,.teacher-app input:disabled,.teacher-app select:disabled{opacity:.45;cursor:not-allowed}
.mat-settings{display:flex;flex-wrap:wrap;align-items:end;gap:18px;margin:24px 0;padding-top:20px;border-top:1px solid var(--line)}
.mat-field{display:flex;flex:1 1 170px;flex-direction:column;min-width:0;gap:7px;font-size:11px;color:var(--ink3);font-weight:600}
.mat-field input,.mat-field select{width:100%;height:40px;min-width:0;border:1px solid var(--line2);border-radius:5px;background:var(--card);font:400 13px var(--sans);padding:9px 10px;color:var(--ink)}
.mat-field input[type="range"]{padding:0;accent-color:var(--teacher-accent);background:none;border:0}
.mat-field input:focus,.mat-field select:focus{outline-color:var(--teacher-accent)}
.mat-check{display:flex;align-items:center;gap:8px;font-size:12px;min-height:40px}
.mat-check input,.mat-file-info input,.bank-select input{accent-color:var(--teacher-accent);width:17px;height:17px}
.mat-hint{font-size:11px;line-height:1.65;color:var(--ink3);margin:0;flex-basis:100%}
.mat-footnote{margin-top:24px;max-width:650px}
.mat-export,.mat-export #matOutput{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.mat-download{background:#215e91;color:#fff}
.mat-error{color:#b63429;font-size:13px;white-space:pre-wrap;overflow-wrap:anywhere}
html[data-theme="dark"] .mat-error{color:#ffa99d}
.mat-progress{color:var(--teacher-accent);font-size:12px}
.mat-error:empty,.mat-progress:empty{display:none}
.mat-pages{display:grid;grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:12px;max-height:600px;overflow:auto;padding:2px}
.mat-page{display:flex;flex-direction:column;align-items:stretch;background:var(--card);border:1px solid var(--line);padding:12px;border-radius:6px;gap:10px}
.mat-page .mat-thumb{width:100%;height:145px}
.mat-page .mat-file-info label{display:flex;gap:6px;align-items:center}
.mat-page .mat-file-actions{justify-content:flex-end}
.mat-page-actions{display:flex;align-items:center;gap:18px;margin-bottom:12px;font-size:12px}
.mat-page-actions button{border:0;background:none;color:var(--teacher-accent);cursor:pointer;padding:5px 0;font:inherit}
.mat-page-actions span{margin-left:auto;color:var(--ink3)}
/* Question bank is a scanning table, with the full derivation in a modal. */
.bank-filters{display:grid;grid-template-columns:1.7fr .8fr 1.2fr 1fr 1fr;gap:14px;padding:20px 0;border-block:1px solid var(--line)}
.bank-summary,.bank-summary>div{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.bank-summary{margin:18px 0 10px;font-size:13px;font-weight:600}
.bank-row{display:flex;gap:20px;align-items:start;padding:24px 0;border-bottom:1px solid var(--line)}
.bank-select{padding-top:26px}
.bank-content{min-width:0;flex:1}
.bank-title{background:none;border:0;text-align:left;padding:0;font:600 16px/1.5 var(--sans);color:var(--ink);cursor:pointer;margin:5px 0}
.bank-title:hover{color:var(--teacher-accent)}
.bank-meta{font-size:10px;color:var(--ink3)}
.bank-meta span{padding:0 6px;color:var(--line3)}
.bank-excerpt{max-height:56px;overflow:hidden;font-size:13px;color:var(--ink2);line-height:1.8}
.bank-excerpt .problem-figure{display:none}
.bank-excerpt .katex-display{display:inline;margin:0}
.bank-content>small{display:block;font-size:10px;color:#477da1;margin-top:8px}
html[data-theme="dark"] .bank-content>small{color:#95c9ed}
.bank-pagination{display:flex;gap:18px;align-items:center;justify-content:center;padding:24px 0;font-size:12px}
.bank-dialog{width:min(820px,calc(100% - 28px));max-height:85vh;padding:30px;background:var(--card);color:var(--ink);border:1px solid var(--line2);border-radius:8px;box-shadow:0 20px 80px #0004}
.bank-dialog::backdrop{background:#111a2266;backdrop-filter:blur(3px)}
.bank-dialog header{display:flex;justify-content:space-between;gap:20px;align-items:start;margin-bottom:24px}
.bank-dialog h2{font-size:20px;margin:5px 0}
.bank-dialog small,.bank-source{color:var(--ink3);font-size:11px}
.bank-full-statement{font-size:15px;line-height:1.8;overflow-x:auto}
.bank-options{padding-left:25px;line-height:1.9}
.bank-answer{border-top:1px solid var(--line);margin-top:24px;padding-top:18px}
.bank-answer summary{cursor:pointer;font-weight:600}
.bank-answer-key{padding:20px 0}
.bank-answer h3{font-size:15px}
.bank-answer ol{padding-left:22px;font-size:14px}
.bank-answer li{margin:12px 0;overflow-wrap:anywhere}
.teacher-app [hidden]{display:none!important}
@media(max-width:1050px){
  .template-presets{grid-template-columns:repeat(3,minmax(0,1fr))}
  .teacher-app .nav-in{gap:15px}.teacher-beta{display:none}
  .mat-layout{grid-template-columns:180px minmax(0,1fr);gap:24px}
  .mat-nav{padding-right:14px}.mat-nav button{font-size:12px;padding:11px 8px}
  .teacher-app .nav-links a{font-size:12px;padding:9px}
  .bank-filters{grid-template-columns:repeat(3,minmax(0,1fr))}.bank-search{grid-column:span 2}
}
@media(max-width:850px){
  .teacher-app .dppgrid{grid-template-columns:minmax(0,1fr)}
  .teacher-app .nav-links{display:none}.teacher-app .mobo{display:grid}
  .teacher-app .mobile-menu.open{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
  .mat-layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .mat-nav{border:0;padding:0}.mat-nav>h2,.mat-nav>p{display:none}
  .mat-nav nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px}
  .mat-nav button{flex-direction:column;gap:6px;text-align:center;padding:10px 5px;font-size:10px}
  .mat-nav button.active{box-shadow:inset 0 -2px var(--teacher-accent)}
  .faculty-status{font-size:10px}.mat-drop{padding:20px}
}
@media(max-width:560px){
  .template-presets{grid-template-columns:repeat(2,minmax(0,1fr))}
  .template-personal{gap:8px}.template-personal>label{flex-basis:100%}.template-personal select{width:100%}
  .teacher-app .saved-paper{flex-wrap:wrap}.teacher-app .saved-paper-actions{width:100%;justify-content:flex-end}
  .library-tools .btn{flex:1 1 180px}.library-tools>label{flex-basis:100%}
  .teacher-app .wrap,.faculty-main{padding-inline:18px}.faculty-main{padding-top:22px}
  .teacher-app .nav-in{padding:12px 18px;gap:10px}.teacher-app .brand{font-size:16px}
  .teacher-app .nav-sp{min-width:0}.teacher-app .brand .mark{width:28px;height:28px}
  .teacher-app .mobile-menu{padding-inline:18px}.teacher-app .mobile-menu a{flex-direction:column;padding:10px 4px;font-size:11px}
  .teacher-app h1{font-size:23px}.faculty-heading{align-items:start;flex-wrap:wrap;gap:12px}
  .faculty-heading .btn{font-size:11px;padding:8px 11px}.faculty-status{margin-left:0}
  .mat-drop{flex-direction:column;align-items:stretch;gap:18px;padding:20px}
  .mat-drop>div{grid-template-columns:26px minmax(0,1fr);gap:4px 10px}.mat-drop span{font-size:10px}
  .mat-upload{align-self:start}.mat-file{gap:10px;flex-wrap:wrap}.mat-file-info{min-width:140px}
  .mat-file-actions{margin-left:auto}.mat-settings{gap:14px}.mat-field{flex-basis:140px}
  .mat-file .mat-thumb{width:50px;height:62px}.mat-page .mat-thumb{width:100%;height:125px}
  .mat-pages{grid-template-columns:repeat(2,minmax(0,1fr))}.mat-page .mat-file-info{min-width:0}
  .mat-export{gap:12px}.mat-export #matOutput{width:100%}
  .bank-filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .bank-row{gap:12px;padding-block:20px}.bank-title{font-size:14px}.bank-dialog{padding:20px}
  .bank-summary>div{width:100%;justify-content:space-between}.bank-summary .btn{font-size:11px}
  .teacher-app .foot-in{align-items:start;flex-direction:column;gap:12px}
}
@media print{
  .faculty-templates,.library-message{display:none!important}
  .faculty-main,.teacher-quality-note,.paper-vault,.teacher-app footer,.teacher-nav,.faculty-heading{display:none!important}
  .teacher-app .dpp-preview{border:0;border-radius:0;min-height:0}
}

/* Faculty workbench: navigation stays outside the paper and its editing controls. */
.teacher-app{font-size:16px}
.teacher-app .nav-in{height:72px;max-width:none;padding:12px 24px;gap:18px}
.teacher-app .teacher-beta{font-size:12px}
.faculty-menu{position:fixed;left:0;top:72px;bottom:0;width:216px;padding:24px 14px;display:flex;flex-direction:column;gap:6px;background:var(--card);border-right:1px solid var(--line);overflow:auto}
.faculty-menu>a{display:flex;align-items:center;gap:11px;padding:12px 10px;border-radius:5px;font:500 14px var(--sans);color:var(--ink2);text-decoration:none}
.faculty-menu>a:hover{background:var(--bg2)}
.faculty-menu>a.on{background:#e8f2ee;color:#145640;box-shadow:inset 3px 0 #176852}
html[data-theme="dark"] .faculty-menu>a.on{background:#243d34;color:#b0ead4}
.menu-group{font-size:12px;font-weight:600;color:var(--ink3);margin:20px 10px 7px}
.menu-group:first-child{margin-top:0}
.menu-bottom{margin-top:auto;padding:32px 10px 8px;display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--ink3)}
.menu-bottom a{flex-basis:100%;margin-top:5px;color:var(--ink2)}
.teacher-app .page,.teacher-app .faculty-main,.teacher-app footer{margin-left:216px;width:calc(100% - 216px);max-width:none}
.teacher-app .wrap{max-width:1500px;padding-inline:32px}
.teacher-app .faculty-heading p{font-size:14px;line-height:1.6}
.teacher-app .faculty-kicker{font-size:12px}
.teacher-app .faculty-heading{margin-bottom:24px}
.heading-actions{display:flex;flex-wrap:wrap;gap:10px}
.teacher-app .source-details{grid-template-columns:minmax(0,1fr);gap:14px}
.teacher-app .dpp-preview{scroll-margin-top:90px}
.teacher-app .teacher-quality-note{font-size:13px;margin:0 0 20px;padding:10px 0}
.teacher-workspace:not([data-workspace-view="templates"]) .faculty-templates,
.teacher-workspace:not([data-workspace-view="papers"]) .paper-vault,
.teacher-workspace:not([data-workspace-view="builder"]) .dppgrid{display:none}
.teacher-app .dppgrid{margin-top:0;gap:28px;grid-template-columns:minmax(320px,370px) minmax(0,1fr)}
.builder-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-bottom:1px solid var(--line2);margin-bottom:24px}
.builder-tabs button{font:600 14px var(--sans);color:var(--ink3);background:none;border:0;border-bottom:3px solid transparent;padding:14px 6px;cursor:pointer}
.builder-tabs button[aria-selected="true"]{color:var(--teacher-accent);border-bottom-color:var(--teacher-accent)}
.dpp-panel:not([data-builder-step="design"]) #panel-design,
.dpp-panel:not([data-builder-step="questions"]) #panel-questions,
.dpp-panel:not([data-builder-step="output"]) #panel-output{display:none}
.teacher-app .dfield{margin-bottom:22px}
.teacher-app .dlabel,.teacher-app .library-tags-label,.teacher-app .paper-details label,.teacher-app .mat-field,.library-tools>label{font-size:14px;color:var(--ink2);line-height:1.5;font-weight:500}
.teacher-app .dlabel .dhint{display:none}
.teacher-app input,.teacher-app select{font-family:var(--sans)}
.teacher-app .paper-details input,.teacher-app .paper-details select,.teacher-app .library-tags-label input,.teacher-app .library-tags-label select,.teacher-app .chapter-tools input,.teacher-app .mat-field input,.teacher-app .mat-field select,.teacher-app .library-tools input,.teacher-app .library-tools select{font-size:14px;min-height:42px;background:var(--card);border-radius:5px}
.teacher-app .paper-check{font-size:14px;align-items:start;line-height:1.6}
.teacher-app .paper-check input{flex-shrink:0;margin-top:3px}
.teacher-app .btn,.teacher-app .btn.sm,.teacher-app .btn.lg{font-size:14px;min-height:40px}
.teacher-app .text-button{font-size:13px;line-height:1.5}
.teacher-app .chip,.teacher-app .dbal-opt{font-size:13px;min-height:34px}
.teacher-app .subject-chips.compact{display:flex;flex-wrap:wrap}
.teacher-app .subject-chips.compact .subject-chip{font-size:13px;min-height:40px;flex:1 1 60px}
.teacher-app #dBook{display:block;max-height:280px;padding-right:6px;border-block:1px solid var(--line);background:transparent}
.chapter-group h4{font:600 12px var(--sans);color:var(--ink3);margin:18px 8px 6px;text-transform:uppercase}
.teacher-app #dBook .chip{display:flex;align-items:center;gap:10px;width:100%;text-align:left;margin:0 0 3px;padding:9px 8px;border:0;background:none;color:var(--ink2);font-size:14px;white-space:normal}
.teacher-app #dBook .chip.on{background:var(--card);color:var(--teacher-accent);font-weight:600}
.chapter-check{width:16px;height:16px;flex-shrink:0;border:1px solid var(--line3);border-radius:3px;background:var(--card)}
.on>.chapter-check{background:#176852;border-color:#176852;box-shadow:inset 0 0 0 3px #fff}
.teacher-app #dBook .all-chapters{font-size:13px;margin-top:5px}
.teacher-app .selection-note,.teacher-app .dbal-desc,.teacher-app .dpp-note{font-size:13px;line-height:1.6}
.teacher-app .eligible-count span{font-size:13px;font-weight:400}
.teacher-app .dpp-preview{border-radius:4px;min-height:660px;background:#e9ecef}
.teacher-app .dpp-empty{min-height:660px;background:var(--card)}
.teacher-app .dpp-empty p,.teacher-app .dpp-empty a{font-size:14px}
.teacher-app .dpp-preview-bar{background:var(--card);border-radius:4px 4px 0 0}
.teacher-app .dpp-preview-bar>div:first-child b{font-size:14px}
.teacher-app .dpp-preview-bar>div:first-child span{font-size:12px;line-height:1.6}
.teacher-app .worksheet{padding:36px 30px;margin:20px;background:#fff;box-shadow:0 2px 7px #0000000e;border-radius:0}
.teacher-app .worksheet h2{font-family:var(--exam)}
.teacher-app .worksheet.font-serif{--exam:Cambria,Georgia,'Times New Roman',serif}
.teacher-app .worksheet.font-sans{--exam:Arial,Helvetica,sans-serif}
.teacher-app .ws-logo{display:block;width:auto;height:auto;max-width:160px;max-height:60px;margin:0 auto 14px;object-fit:contain}
.teacher-app .ws-brand{font:700 21px/1.3 var(--exam);letter-spacing:0;text-transform:none;color:#111}
.teacher-app .ws-teacher{font:500 14px/1.5 var(--exam);margin-top:5px;color:#111;overflow-wrap:anywhere}
.teacher-app .ws-subtitle{font:400 13px/1.5 var(--exam);margin-top:5px;color:#333;overflow-wrap:anywhere}
.teacher-app .ws-title{font-size:22px;margin:18px 0 10px}
.teacher-app .ws-sub{font:400 12px/1.6 var(--exam);overflow-wrap:anywhere}
.teacher-app .ws-fields{font-family:var(--exam);font-size:12px;gap:14px;flex-wrap:wrap}
.teacher-app .wq{padding-block:18px}
.teacher-app .wq-body,.teacher-app .wq-opt{font-size:15px;line-height:1.65}
.teacher-app .wsol-steps li{font-size:14px;line-height:1.65;margin-block:8px}
.teacher-app .paper-modern .ws-head{text-align:left;border-bottom:1px solid #222;padding-bottom:20px}
.teacher-app .paper-modern .ws-logo{margin-left:0}
.teacher-app .paper-modern .ws-sec-h{background:#f3f4f5;border:0;padding:10px}
.teacher-app .paper-compact .ws-head{padding-bottom:10px}
.teacher-app .paper-compact .ws-title{margin:10px 0;font-size:20px}
.teacher-app .paper-compact .wq{padding-block:10px}
.teacher-app .paper-compact .wq-body,.teacher-app .paper-compact .wq-opt{font-size:14px;line-height:1.5}
.teacher-app .paper-compact .wsol-steps li{font-size:13.5px;line-height:1.5;margin-block:4px}
.paper-style-choice{margin:0 0 22px;padding:0;border:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.paper-style-choice legend{font-size:14px;color:var(--ink2);margin-bottom:10px}
.paper-style-choice label{position:relative;font-size:12px;line-height:1.5;cursor:pointer}
.paper-style-choice input{position:absolute;top:10px;left:9px;accent-color:var(--teacher-accent)}
.style-swatch{display:block;border:1px solid var(--line2);border-radius:4px;background:#fff;height:100px;padding:20px 14px 12px 32px;margin-bottom:7px}
.paper-style-choice input:checked+.style-swatch{outline:2px solid var(--teacher-accent);outline-offset:0}
.style-swatch b,.style-swatch i{display:block;height:3px;background:#c3cad0;margin-bottom:9px;width:100%}
.style-swatch b{background:#53616a;height:6px;width:65%;margin:0 auto 16px}
.style-modern b{margin-left:0;width:85%}.style-modern i:nth-child(2){height:9px;background:#eef0f2}
.style-compact b{margin-bottom:12px}.style-compact i{margin-bottom:5px}
.logo-control input{max-width:100%;font-size:12px}
.logo-sample{display:flex;align-items:center;gap:15px;margin-top:10px}
.logo-sample img{max-width:100px;max-height:45px;object-fit:contain;background:#fff}
.logo-control p{font-size:12px;line-height:1.6;color:var(--ink3);margin:8px 0 0}
.teacher-app .faculty-templates{border:0;margin:20px 0}
.template-presets{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.template-preset{padding:24px;min-height:110px}.template-preset b{font-size:16px}.template-preset small{font-size:13px}
.template-heading h2{font-size:18px}.template-heading>span,.template-personal>label{font-size:14px}
.template-personal{margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.teacher-app .paper-vault-list{max-height:none}
.teacher-app .saved-paper{padding-block:20px}
.teacher-app .saved-paper b{font-size:16px}.teacher-app .saved-paper span,.teacher-app .saved-paper-info small{font-size:13px}
.teacher-app .library-message{font-size:14px}
.teacher-app .bank-meta{font-size:12px;line-height:1.8}.teacher-app .bank-excerpt{font-size:15px;max-height:62px}
.teacher-app .bank-title{font-size:17px}.teacher-app .bank-content>small{font-size:12px}
.teacher-app .mat-nav button{font-size:14px}.teacher-app .mat-hint,.teacher-app .mat-file-info small{font-size:12px}
.teacher-app .mat-file-info{font-size:14px}.teacher-app .mat-nav>p{font-size:13px}
@media(max-width:1250px){
  .teacher-app .wrap,.teacher-app .faculty-main{padding-inline:24px}
  .teacher-app .dppgrid{grid-template-columns:minmax(290px,330px) minmax(0,1fr);gap:20px}
  .teacher-app .worksheet{margin:12px;padding:28px 20px}
}
@media(max-width:1100px){
  .teacher-app .page,.teacher-app .faculty-main,.teacher-app footer{margin-left:0;width:100%}
  .teacher-app .mobo{display:grid}
  .faculty-menu{display:none;top:72px;width:260px;box-shadow:12px 0 30px #0002}
  .faculty-menu.open{display:flex}
  .teacher-app .teacher-beta{display:none}
}
@media(max-width:850px){
  .teacher-app .dppgrid{grid-template-columns:minmax(0,1fr)}
  .teacher-app .dpp-empty{min-height:340px}.teacher-app .dpp-preview{min-height:340px}
  .template-presets{grid-template-columns:repeat(2,minmax(0,1fr))}
  .teacher-app .worksheet{margin:16px;padding:32px}
}
@media(max-width:560px){
  .teacher-app .wrap,.teacher-app .faculty-main{padding-inline:16px}
  .teacher-app .nav-in{padding-inline:16px;height:64px}.faculty-menu{top:64px}
  .teacher-app .faculty-heading .btn{font-size:14px}
  .teacher-app .worksheet{padding:22px 14px;margin:8px}
  .teacher-app .ws-brand{font-size:18px}.teacher-app .ws-title{font-size:20px}
  .teacher-app .paper-details{grid-template-columns:minmax(0,1fr) 90px}
  .teacher-app .subject-chips.compact{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .teacher-app .saved-paper{flex-direction:row;align-items:center}
  .teacher-app .preview-actions{width:auto}.teacher-app .preview-actions .btn{width:auto}
  .template-presets{grid-template-columns:minmax(0,1fr)}
  .template-preset{min-height:80px;padding:18px}
}
@media print{
  .faculty-menu,.builder-tabs,.library-message{display:none!important}
  .teacher-app .page,.teacher-app footer{margin-left:0;width:100%;padding:0}
  .teacher-app #worksheet{margin:0;padding:0;box-shadow:none;border:0}
  .teacher-app .dpp-preview{background:white}
  .teacher-app .ws-logo{print-color-adjust:exact}
  .teacher-app .ws-section-intro{break-inside:avoid;break-after:avoid}
  .teacher-app .ws-sec-rules{break-inside:avoid}
}