/* Three assessment destinations reuse the approved interior theme. */
.library-app .assessment-shell .student-screen-head{padding:20px 24px;}
.library-app .assessment-shell .student-screen-head h1{font-size:2rem;}
.assessment-shell .assessments .panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;}
.assessment-shell .assessments h2{font-size:1.4rem;margin:0 0 10px;}
.assessment-shell .assessments h3{font-size:1.15rem;line-height:1.6;margin:0 0 18px;overflow-wrap:anywhere;}
.assessment-shell .exam-filters{display:grid;grid-template-columns:minmax(0,2fr) minmax(180px,1fr);gap:16px;padding:18px;border:1px solid var(--line);border-radius:16px;background:white;}
.assessment-shell .exam-cards{display:grid;gap:16px;}
.assessment-shell .exam-card{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:center;}
.assessment-shell .exam-card p{margin:6px 0 12px;}
.assessment-shell .exam-card-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;max-width:390px;justify-content:flex-end;}
.assessment-shell .exam-card-actions select{max-width:170px;}
.assessment-shell .exam-card-actions [data-exam=start],.assessment-shell [data-exam=confirm]{background:var(--brand);color:white;}
.assessment-shell .exam-history{grid-column:1/-1;border-top:1px solid var(--line);padding-top:14px;font-size:.875rem;}
.assessment-shell summary{cursor:pointer;}
.assessment-shell .exam-toolbar,.assessment-shell .exam-sections,.assessment-shell .exam-bottom{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:0 0 18px;}
.assessment-shell .exam-sections .button[aria-pressed=true]{background:var(--brand);color:white;}
.assessment-shell .exam-title{margin:20px 0;}
.assessment-shell .exam-timer{margin-left:auto;color:var(--brand-deep);font-variant-numeric:tabular-nums;}
.assessment-shell #exam-save-state{font-size:.875rem;color:var(--ink-soft);}
.assessment-shell .exam-question-nav{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0;}
.assessment-shell .exam-number{border:1px solid var(--line-strong);border-radius:10px;background:white;color:var(--ink);min-width:42px;min-height:42px;font:inherit;cursor:pointer;}
.assessment-shell .exam-number.answered{background:var(--brand-soft);border-color:var(--brand);}
.assessment-shell .exam-number[aria-current=step]{background:var(--brand);color:white;box-shadow:0 0 0 2px var(--paper),0 0 0 4px var(--brand);}
.assessment-shell .exam-question-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;align-items:start;}
.assessment-shell .exam-question-layout.has-source{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
.assessment-shell .exam-source{position:sticky;top:92px;}
.assessment-shell .exam-source .prose{margin:0;line-height:1.9;}
.assessment-shell .exam-answer{min-width:0;}
.assessment-shell .exam-answer fieldset{border:0;margin:0;padding:0;min-width:0;}
.assessment-shell .exam-answer legend{font-size:.875rem;margin-bottom:10px;}
.assessment-shell .exam-answer .option{border:1px solid var(--line);border-radius:12px;padding:12px;gap:12px;line-height:1.6;align-items:flex-start;cursor:pointer;}
.assessment-shell .exam-answer .option:has(input:checked){background:var(--brand-soft);border-color:var(--brand);}
.assessment-shell .exam-answer input:is([type=radio],[type=checkbox]){accent-color:var(--brand);margin-top:6px;flex:none;}
.assessment-shell .exam-answer .field{width:100%;}
.assessment-shell .exam-answer textarea{resize:vertical;line-height:1.7;}
.assessment-shell .exam-answer .exam-writing{min-height:260px;}
.assessment-shell .exam-bottom{margin-top:18px;}
.assessment-shell [data-exam=submit]{margin-left:auto;background:var(--brand);color:white;}
.assessment-shell #exam-confirm:empty{display:none;}
.assessment-shell .exam-confirm{background:var(--brand-soft)!important;margin:18px 0;}
.assessment-shell .exam-confirm .button{margin-right:10px;}
.assessment-shell .exam-notice{border:1px solid var(--line-strong);border-left:4px solid var(--brand);border-radius:12px;background:var(--brand-soft);padding:14px;line-height:1.6;}
.assessment-shell .exam-results-head{margin-bottom:20px;}
.assessment-shell .exam-score{font-size:1.5rem;color:var(--brand);}
.assessment-shell .exam-result{margin-bottom:16px;}
.assessment-shell .exam-result .badge{margin-bottom:12px;white-space:normal;}
.assessment-shell .prose{white-space:pre-wrap;overflow-wrap:anywhere;}
.assessment-shell audio{display:block;width:100%;margin:16px 0;}
.assessment-shell [hidden]{display:none!important;}
@media(max-width:1100px){
 .assessment-shell .exam-question-layout.has-source{grid-template-columns:minmax(0,1fr);}
 .assessment-shell .exam-source{position:static;}
 .assessment-shell .exam-card{grid-template-columns:minmax(0,1fr);}
 .assessment-shell .exam-card-actions{justify-content:flex-start;max-width:none;}
}
/* Eight real destinations: keep every existing student destination reachable. */
@media(max-width:980px){
 .library-app .student-shell .sidebar-nav .nav-group{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;}
 .library-app .student-shell .sidebar-nav .nav-group .nav-item{grid-column:auto;min-width:0;width:100%;min-height:44px;font-size:.75rem;white-space:normal;overflow-wrap:anywhere;padding:6px 4px;margin:0;}
 .library-app .student-shell{padding-bottom:calc(128px + env(safe-area-inset-bottom));}
 .assessment-shell .assessments :is(button,input,textarea,select,a){scroll-margin-block:110px 145px;}
}
@media(max-width:600px){
 .library-app .assessment-shell .student-screen-head{padding:18px;}
 .assessment-shell .exam-filters{grid-template-columns:minmax(0,1fr);}
 .assessment-shell .assessments .panel{padding:18px;}
 .assessment-shell .exam-timer{margin-left:0;flex-basis:100%;}
 .assessment-shell .exam-sections .button{flex:1 1 40%;}
 .assessment-shell .exam-bottom{gap:8px;}
 .assessment-shell [data-exam=submit]{flex-basis:100%;margin:6px 0 0;}
}