:root{--navy:#162b31;--teal:#176f63;--mint:#e3eee6;--bg:#f7f6f2;--ink:#243a3e;--muted:#75817d;--line:#dfe4de;--white:#fff;--orange:#b86838}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}button,input,select{font:inherit}button,a,label.import{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.4;cursor:default}a{color:var(--teal)}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #d59d5f;outline-offset:3px}[hidden]{display:none!important}aside{position:fixed;inset:0 auto 0 0;width:270px;background:var(--navy);color:#eef5ee;display:flex;flex-direction:column;padding:32px 21px 22px;z-index:10}.brand{display:flex;gap:13px;align-items:center;color:white;text-decoration:none;font-weight:700;letter-spacing:2px;font-size:17px}.brand small{display:block;font-size:9px;letter-spacing:3px;color:#a5b8ae;margin-top:2px}.brand-icon{position:relative;font:35px Georgia,serif;border:1px solid #638379;width:48px;height:48px;text-align:center;line-height:48px}.brand-icon span{font:17px sans-serif;position:absolute;right:-5px;top:-10px;background:var(--navy);color:#badac3}.side-intro{font-size:12px;color:#9bb0a9;margin:28px 4px}.nav-main{border:0;text-align:left;background:transparent;color:#c4d2cb;padding:12px;border-radius:7px;margin-bottom:4px;font-size:13px}.nav-main.active,.nav-main:hover{background:#2b4648;color:white}.nav-main span{float:right;background:#44615b;padding:0 7px;border-radius:4px}.side-label{font-size:10px;letter-spacing:2px;color:#819e93;display:flex;justify-content:space-between;margin:24px 10px 10px}nav{overflow:auto;flex:1;scrollbar-width:thin;scrollbar-color:#486360 transparent}nav button{display:flex;width:100%;align-items:center;gap:12px;background:transparent;border:0;text-align:left;color:#bbcdc4;padding:9px 10px;border-radius:6px;font-size:12px}nav button:hover,nav button.active{color:#fff;background:#304b49}nav .n{color:#6e9486;font-size:10px;min-width:19px}nav .count{margin-left:auto;font-size:10px;color:#8ca99d}.side-bottom{border-top:1px solid #34504d;padding:20px 7px 0;font-size:11px;color:#a3b9ac;margin-top:15px}.side-bottom span{font-size:9px;color:#78978a}.shell{margin-left:270px}header{height:85px;border-bottom:1px solid var(--line);padding:0 44px;display:flex;align-items:center;gap:24px;background:#f7f6f2ee;position:sticky;top:0;z-index:5;backdrop-filter:blur(10px)}.breadcrumb{font-size:10px;letter-spacing:1.5px;white-space:nowrap;color:#82918a}.breadcrumb span{margin:0 13px}.breadcrumb b{color:var(--ink);font-weight:500}.search{display:flex;align-items:center;gap:10px;margin-left:auto;background:white;border:1px solid var(--line);padding:8px 13px;border-radius:6px;max-width:350px;width:40%}.search span{font-size:22px;line-height:1}.search input{width:100%;border:0;outline:0;font-size:12px;background:transparent}.private{font-size:10px;color:var(--teal);white-space:nowrap}.icon-btn{display:none;border:0;background:transparent}main{max-width:1320px;padding:48px 48px 20px;margin:0 auto}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:700;color:var(--teal);margin-bottom:16px}h1{font:52px/1.08 Georgia,serif;letter-spacing:-1.4px;margin:0 0 22px}h1 em{font-weight:400;color:var(--teal)}.intro{max-width:540px;color:#6b7974;font-size:14px;line-height:1.8;margin-bottom:25px}.hero-actions{display:flex;gap:12px}.primary,.secondary{border:1px solid var(--line);padding:12px 18px;border-radius:6px;font-size:12px;font-weight:600;background:white;color:var(--ink);transition:background .15s}.primary{background:var(--teal);border-color:var(--teal);color:white}.primary:hover{background:#115e54}.secondary:hover{background:#edf1eb}.hero-actions .primary span{margin-left:38px}.stats{display:flex;gap:0;border-block:1px solid var(--line);margin:36px 0}.stats>div{padding:22px 40px 23px 0;min-width:180px}.stats b{font:31px Georgia,serif;display:block}.stats span{color:#7b8780;font-size:11px}.section-heading{display:flex;align-items:center;justify-content:space-between;margin:32px 0 16px}.section-heading h2{font:25px Georgia,serif;margin:0}.section-heading>span{font-size:11px;color:var(--muted)}.chapter-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.chapter-tile{background:white;border:1px solid var(--line);border-radius:8px;padding:19px;text-align:left;color:var(--ink);min-height:143px;display:flex;flex-direction:column;transition:transform .15s,border-color .15s}.chapter-tile:hover{transform:translateY(-2px);border-color:#77a594}.tile-top{display:flex;justify-content:space-between;color:var(--teal);font-size:10px;letter-spacing:1px;margin-bottom:16px}.tile-top .tile-arrow{font-size:18px}.chapter-tile h3{font-size:14px;font-weight:600;margin:0 0 15px;line-height:1.4}.tile-bottom{font-size:10px;color:var(--muted);margin-top:auto;display:flex;justify-content:space-between;gap:8px}.tile-bar{height:2px;background:#eef1ec;margin-top:13px}.tile-bar i{display:block;height:100%;background:#5e9d7e}.integrity{display:flex;gap:17px;border:1px solid var(--line);background:#edf1e9;padding:22px 25px;border-radius:8px;margin-top:34px}.integrity-icon{font-size:27px;color:#5d8471}.integrity h3{font-size:13px;margin:0 0 5px}.integrity p{font-size:11px;color:#70806f;margin:0;max-width:730px}.text-btn{border:0;background:transparent;color:var(--teal);font-size:11px;padding:0;cursor:pointer}.integrity .text-btn{margin-top:10px}.study-top{display:flex;justify-content:space-between;align-items:center;gap:15px}.study-top h1{font-size:35px;margin-bottom:22px;letter-spacing:-.7px}.study-top .eyebrow{margin-bottom:10px}.toolbar{display:flex;gap:10px;align-items:center;margin:10px 0 18px;flex-wrap:wrap}.toolbar select,#pendingFilter{background:white;border:1px solid var(--line);border-radius:5px;padding:9px 10px;font-size:12px;color:var(--ink);max-width:280px}.toolbar .secondary{padding:9px 13px}.toolbar>span{margin-left:auto;color:var(--muted);font-size:12px}.progress{height:3px;background:#e0e6df;margin-bottom:22px}.progress i{height:100%;display:block;background:var(--teal);transition:width .2s}.question-card{border:1px solid var(--line);border-radius:9px;background:white;padding:25px 28px}.card-meta{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:10px;letter-spacing:.6px;color:var(--muted);padding-bottom:20px;border-bottom:1px solid #edf0eb;margin-bottom:20px}.card-meta a{text-decoration:none;font-size:11px;letter-spacing:0}.pdf-excerpts{width:100%;min-height:50px}.pdf-excerpts canvas{display:block;width:100%;height:auto;background:white;max-width:100%;margin:5px auto 12px}.pdf-excerpts .loading{color:var(--muted);font-size:12px;padding:25px}.accessible-text{color:#7a8981;font-size:11px;margin:16px 0}.accessible-text summary{cursor:pointer}.accessible-text p{white-space:pre-wrap;font-size:14px;color:var(--ink)}.reveal{margin:15px 0 5px;width:100%;text-align:left;padding:14px 20px}.reveal span{float:right}.answer-label{font-size:10px;font-weight:700;letter-spacing:1.2px;color:var(--teal);border-top:1px solid var(--line);padding-top:22px;margin:24px 0 18px}.mark-actions{display:flex;justify-content:flex-end;gap:12px;border-top:1px solid var(--line);padding-top:22px}.mark-review{color:#986b34}.pagination{display:flex;justify-content:space-between;align-items:center;margin-top:20px}.pagination span{font-size:10px;color:#8b958e}.choices{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.choices button{background:white;border:1px solid var(--line);border-radius:6px;width:47px;height:43px;color:var(--ink)}.choices button.selected{border-color:var(--teal);background:var(--mint)}.choices button.correct{background:#d9eddf;border-color:#62a477}.choices button.incorrect{background:#f3dfd7;border-color:#b57b62}#result,#markMessage{font-size:12px;color:var(--teal)}#pendingList{margin-top:15px}#pendingList details{background:white;border:1px solid var(--line);padding:15px 18px;margin:8px 0;border-radius:6px;font-size:12px}#pendingList summary{cursor:pointer;font-weight:600}#pendingList p{font-size:12px;white-space:pre-wrap}#pending>p{font-size:12px;color:var(--muted)}footer{display:flex;justify-content:space-between;gap:20px;font-size:10px;color:#95a094;padding:30px 0 0}footer>div{display:flex;gap:20px}#notice{position:fixed;bottom:22px;right:22px;background:var(--navy);color:white;border-radius:7px;padding:12px 22px;display:none;font-size:12px;z-index:20}#empty{padding:30px;background:white;text-align:center;border-radius:8px}
@media(min-width:1500px){main{padding-top:60px}.chapter-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:1100px){aside{width:230px}.shell{margin-left:230px}main{padding:32px 28px}header{padding:0 28px}.chapter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats>div{min-width:0;flex:1;padding-right:15px}.breadcrumb{display:none}}@media(max-width:700px){aside{transform:translateX(-100%);transition:transform .2s;width:270px}aside.open{transform:translateX(0);box-shadow:20px 0 60px #0005}.shell{margin-left:0}.icon-btn{display:block;font-size:21px}header{height:65px;padding:0 18px;gap:13px}.search{width:100%;max-width:none}.private{display:none}main{padding:30px 18px}h1{font-size:43px}.hero-actions{flex-wrap:wrap}.stats b{font-size:27px}.stats span{font-size:9px}.chapter-grid{gap:10px}.chapter-tile{padding:15px;min-height:145px}.section-heading>span{display:none}.question-card{padding:18px 10px}.card-meta{padding-inline:8px;gap:8px}.study-top{align-items:flex-start}.study-top h1{font-size:28px}.study-top .secondary{padding:8px;white-space:nowrap}.pagination span{display:none}.mark-actions{justify-content:space-between}.mark-actions button{padding:11px;font-size:11px}.integrity{padding:17px}.toolbar>span{width:100%;margin-left:0}.toolbar select{max-width:100%}footer{flex-direction:column}.tile-bottom{flex-direction:column;gap:1px}.chapter-tile h3{font-size:13px}}

/* Assessment-style options added to open-response cards. */
.choice-note{font-size:9px;letter-spacing:.8px;color:#6f7e78;margin:17px 0 8px}.choices{margin:8px 0 18px}.choices.generated:not(.arrows){display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.choices .text-choice{width:100%;height:auto;min-height:62px;padding:12px 14px;display:flex;align-items:flex-start;gap:12px;text-align:left;line-height:1.4}.choice-letter{display:grid;place-items:center;flex:0 0 29px;width:29px;height:29px;border-radius:5px;background:#edf2ed;color:var(--teal);font-size:11px;font-weight:800}.choice-text{padding-top:4px}.choices.arrows{display:block}.arrow-scroll{overflow-x:auto;padding:2px 1px 7px}.arrow-head,.arrow-choice{display:grid;grid-template-columns:58px repeat(var(--arrow-cols),minmax(78px,1fr));align-items:center;gap:6px}.arrow-head{padding:0 10px 7px;color:#66766f;font-size:11px;font-weight:700;text-align:center}.arrow-options{display:grid;gap:8px}.choices .arrow-choice{width:100%;height:auto;min-height:55px;padding:8px 10px;text-align:center}.arrow-choice .choice-letter{justify-self:center}.arrow-symbol{font-size:26px;line-height:1;font-weight:700;color:#284c48}.choices button:hover:not(:disabled){border-color:#7aa99a;background:#f7faf6}
@media(max-width:700px){.choices.generated:not(.arrows){grid-template-columns:1fr}.choices .text-choice{min-height:56px;padding:10px}.choice-note{padding-inline:4px}.arrow-symbol{font-size:23px}}