[hidden]{display:none!important}
:root{font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#273c45;background:#f1f5f5;--accent:#205f56;--border:#d6e0e2}*{box-sizing:border-box}body{margin:0}header{background:#fff;padding:20px 4%;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:18px}header a{font-weight:700;color:var(--accent);font-size:22px;text-decoration:none}header p{font-size:13px;margin:3px 0 0}nav,.actions,.tools,.group{display:flex;gap:10px;align-items:center;flex-wrap:wrap}nav span{font-size:14px;color:#657982}button,input,textarea,select{font:inherit}button,.button{border:1px solid #bdcfd1;border-radius:7px;background:#fff;color:#2e4951;min-height:44px;padding:9px 14px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:7px}button:hover,.button:hover{background:#eaf3f0}button:disabled{opacity:.5;cursor:default}.primary,button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:white}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid #daa148;outline-offset:2px}input,select,textarea{border:1px solid #bcccce;border-radius:6px;padding:10px;min-height:44px;max-width:100%;background:white;color:#273c45}input:not([type=checkbox]):not([type=file]),select,textarea{width:100%}textarea{resize:vertical;min-height:95px}input[type=checkbox]{width:20px;height:20px;min-height:auto}label{display:block;font-weight:550;font-size:14px;margin:12px 0 5px}p{color:#61747c;margin:7px 0 14px}h1{font-size:28px;margin:0 0 7px;line-height:1.25}h2{font-size:20px;line-height:1.3;margin:0 0 12px}h3{font-size:16px;margin:0 0 7px}main{max-width:1480px;padding:28px 4% 60px;margin:auto}#message{padding:0 4%;color:#9a3a28;font-size:14px;white-space:pre-wrap}#message:not(:empty){padding-top:12px;padding-bottom:12px;background:#fff4e7}.panel{background:white;border:1px solid var(--border);border-radius:10px;padding:22px;margin:0 0 22px}.login{max-width:460px;margin:20px auto}.login button.primary{width:100%;margin-top:18px}.login .actions{margin-bottom:16px}.overview{display:grid;grid-template-columns:1fr 1fr;gap:22px}.muted,.hint{font-size:13px;color:#657982}.titlebar{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:22px}.titlebar p{margin:6px 0 0}.filters{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.filters button{font-size:14px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:14px}th{text-align:left;color:#657982;font-weight:550;border-bottom:1px solid var(--border);padding:10px}td{padding:15px 10px;border-bottom:1px solid #e3ebed;vertical-align:top}td p{font-size:12px;margin:4px 0}.status{font-size:12px;display:inline-block;background:#edf2f3;color:#48626b;border-radius:5px;padding:4px 8px;white-space:nowrap}.status.submitted{background:#fff0d3;color:#8b611a}.status.reviewed{background:#e0f1e8;color:#226448}.paper-choice{display:grid;grid-template-columns:24px 72px 1fr;gap:14px;align-items:center;padding:15px 0;border-bottom:1px solid #e2ebeb;font-weight:400;margin:0}.paper-choice img{width:66px;height:90px;object-fit:contain;background:#f2f4f4;border:1px solid var(--border)}.paper-choice strong{display:block;font-size:15px}.paper-choice span{font-size:13px;color:#64777d}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.form-grid .wide{grid-column:1/-1}.child-row{display:flex;justify-content:space-between;align-items:center;gap:14px;border-top:1px solid var(--border);padding:12px 0}.child-row code{font:600 16px ui-monospace,monospace;letter-spacing:1px}.empty{padding:25px;text-align:center;color:#62777e}.exam-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:22px}.exam-heading{grid-column:1/-1}.tools{padding:12px;background:white;border:1px solid var(--border);border-radius:8px}.tools label{margin:0;font-size:13px;font-weight:400;display:flex;align-items:center;gap:5px}.tools select{width:auto}.tools button{font-size:13px;padding:8px 11px}.paper{position:relative;background:white;box-shadow:0 2px 12px #263b4912;margin:14px auto;max-width:900px}.paper img{display:block;width:100%;height:auto}.paper canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none}.answer-row{margin:16px 0}.answer-field{display:flex;align-items:center;gap:9px}.answer-field input{min-width:0;flex:1}.answer-field span{font-size:13px;white-space:nowrap}.answer-row textarea{font-size:13px;margin-top:8px;min-height:70px}.exam-side .panel{padding:20px}.exam-side{min-width:0}.save-state{font-size:13px;min-height:22px;color:var(--accent)}.submit-bar{border-top:1px solid var(--border);padding-top:17px;margin-top:16px}.submit-bar button{width:100%}#results{grid-column:1/-1}.score{font-size:27px;font-weight:650;color:var(--accent)}.result{border-top:1px solid var(--border);padding:18px 0;display:grid;grid-template-columns:70px 1fr;gap:12px}.result p{font-size:14px;margin:5px 0}.result .correct{color:#226448}.result .incorrect{color:#a14332}.result .review{color:#866214}.ai-note{background:#f0f5f5;padding:12px;font-size:13px}.review-marks{display:flex;align-items:center;gap:9px;margin-top:8px}.review-marks input{max-width:100px}.review-history{padding:12px;border-left:3px solid var(--accent);margin:15px 0;background:#f5f8f7;white-space:pre-wrap}.upload-preview{width:100%;height:650px;border:1px solid var(--border);margin:12px 0}.uploaded-image{max-width:100%;display:block;margin:12px 0}.file-row{display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--border);padding:8px 0;font-size:13px}dialog{border:1px solid var(--border);border-radius:12px;padding:25px;max-width:440px;width:90%}dialog .actions{justify-content:flex-end;margin-top:20px}dialog::backdrop{background:#13374788}details{margin:15px 0}summary{cursor:pointer;color:var(--accent);font-weight:550}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;font-size:14px;background:#f5f8f8;padding:12px}progress{width:100%;accent-color:var(--accent)}.upload-switch{margin-bottom:17px}.full{width:100%}.locked-banner{border-left:4px solid var(--accent);background:#e7f2ed;padding:12px 16px;margin:12px 0;color:#295d50;font-size:14px}@media(max-width:1050px){.exam-layout{grid-template-columns:minmax(0,1fr) 270px;gap:14px}.exam-side .panel{padding:15px}.tools{gap:7px}}@media(max-width:760px){header{align-items:flex-start;padding:16px;flex-direction:column;gap:12px}header a{font-size:20px}main{padding:20px 14px 45px}.overview,.exam-layout{display:block}.form-grid{gap:0 10px}.titlebar{align-items:flex-start;flex-direction:column}h1{font-size:24px}.panel{padding:18px}.exam-side{margin-top:20px}.upload-preview{height:440px}.paper-choice{grid-template-columns:22px 55px 1fr;gap:9px}.paper-choice img{width:50px;height:70px}.tools button{padding:8px 10px}}@media print{header nav,.tools,.submit-bar,.actions,.filters,.exam-side,#message{display:none!important}body{background:white}main{padding:0}.exam-layout{display:block}.paper{break-after:page;box-shadow:none}.panel{border:0;padding:10px}.result{break-inside:avoid}}

.paper-overlay{position:absolute;inset:0;pointer-events:none;font-size:clamp(10px,1.15vw,15px);line-height:1.25;overflow:hidden}
.paper-typed{position:absolute;color:#164eaa;font-weight:600;font-size:1.15em;max-width:24%;overflow-wrap:anywhere;white-space:pre-wrap}
.paper-check{position:absolute;width:45%;padding:4px 6px;background:#fffaf4ed;border-left:3px solid #916617;color:#735317;border-radius:3px;overflow-wrap:anywhere}
.paper-check span,.paper-score span{display:block;font-size:.85em;margin-top:2px;white-space:pre-wrap}
.paper-check.correct{border-color:#216443;color:#216443;background:#f1fff4ef}
.paper-check.incorrect{border-color:#aa302d;color:#aa302d;background:#fff5f2ef}
.paper-symbol{position:absolute;font-size:2em;line-height:1;font-weight:800;color:#b42626;transform:translate(-25%,-25%)}
.paper-comment{position:absolute;max-width:38%;white-space:pre-wrap;overflow-wrap:anywhere;padding:4px 6px;color:#ae2525;background:#fff9e6f0;border:1px solid #c64836;border-radius:3px;transform:translateY(-20%)}
.paper-score{position:absolute;left:3%;top:2%;max-width:85%;color:#a32626;border:2px solid #a32626;background:#fffdf4ed;padding:5px 9px;font-weight:650;border-radius:4px}
.mark-surface{position:absolute;inset:0;cursor:crosshair;touch-action:pan-y;outline:2px dashed #b4362f;outline-offset:-2px}
#review-tools{padding:16px;margin:12px 0}#review-tools h2{font-size:18px}#review-tools button[aria-pressed=true]{background:#a52d2a;border-color:#a52d2a}
.review-marks{flex-wrap:wrap}#scan-picker{margin-bottom:10px}
@media(max-width:760px){.paper-overlay{font-size:clamp(9px,2vw,14px)}}
@media print{#review-tools,#scan-picker,#scan-picker-label,.mark-surface{display:none!important}.paper-overlay{font-size:11px}}

/* Reading surface: reserve an external margin; never lay feedback cards over questions. */
.has-submission .paper{width:calc(100% - 44px);margin-right:44px}
.paper-overlay{overflow:visible}
.paper-typed{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:20%;line-height:1.15}
.paper-check{left:calc(100% + 4px);width:38px;min-height:36px;padding:2px;background:#fff;border:1px solid #c8d5d5;font-size:10px;line-height:1.1;display:flex;flex-direction:column;gap:1px;border-radius:5px;pointer-events:auto;transform:translateY(-15%)}
.paper-check strong{font-size:15px}.paper-check span{font-size:10px;margin:0}
.paper-note-pin{position:absolute;width:24px;height:24px;min-height:24px;padding:0;border-radius:50%;border:1px solid #a72b26;background:#fff8df;color:#a72b26;pointer-events:auto;font-size:12px;font-weight:700;transform:translate(-50%,-50%)}
#page-notes{overflow-wrap:anywhere}#page-notes p{white-space:pre-wrap;font-size:14px}#page-notes p:target{background:#fff0c9}
.exam-layout{padding-bottom:90px;align-items:start}.workspace{min-width:0}
.page-dock{position:fixed;bottom:calc(12px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);z-index:20;padding:7px 10px;border:1px solid #bacdcd;background:#fffffff5;border-radius:14px;box-shadow:0 3px 20px #173e3924;max-width:calc(100vw - 24px)}
.page-dock .group{flex-wrap:nowrap;gap:8px}.page-dock #position{white-space:nowrap;min-width:84px;text-align:center;font-size:13px}.page-dock button{padding:7px 12px}
#review-tools{margin:0 0 14px;padding:14px}#review-tools h2{font-size:17px;margin-bottom:8px}#review-tools>p.hint:first-of-type{font-size:12px}#review-tools .review-actions{gap:6px}#review-tools .review-actions button{flex:1;padding:8px;font-size:13px;white-space:nowrap}#review-tools #review-options{margin-bottom:0}#review-tools #review-options summary{font-size:13px}
.submitted-details{border:1px solid var(--border);border-radius:8px;background:white;padding:12px;margin:0 0 14px}.submitted-details .panel{border:0;padding:0;margin:14px 0 0}
.has-submission #results{padding:16px}.has-submission #results .result{display:block}.has-submission #results .result>strong{display:block;margin-bottom:6px}.has-submission #results .score{font-size:23px}
@media(min-width:901px){
 .exam-layout.has-submission{grid-template-columns:minmax(0,1fr) 290px;gap:18px}
 .has-submission .exam-side{position:sticky;top:12px;max-height:calc(100vh - 100px);max-height:calc(100dvh - 100px);overflow-y:auto;overscroll-behavior:contain;padding:0 4px 4px 0;scrollbar-width:thin}
 .has-submission .page-dock{left:calc(50% - 145px)}
}
@media(max-width:900px){
 .exam-layout.has-submission{display:block;padding-bottom:190px}.has-submission .exam-side{margin-top:18px}
 .has-submission .paper{width:calc(100% - 38px);margin-right:38px}.paper-check{width:33px;left:calc(100% + 3px)}
 .parent-review #review-tools{position:fixed;z-index:21;bottom:calc(80px + env(safe-area-inset-bottom));left:12px;right:12px;max-width:560px;margin:0 auto;padding:8px 10px;border-radius:12px;box-shadow:0 3px 18px #173e3924;max-height:50vh;max-height:50dvh;overflow-y:auto}
 .parent-review #review-tools h2,.parent-review #review-tools>p.hint:first-of-type{display:none}
 .parent-review #review-tools .review-actions{flex-wrap:nowrap;gap:4px}.parent-review #review-tools .review-actions button{min-width:0;min-height:44px;font-size:12px;padding:6px 3px}
 .parent-review #review-options{margin:6px 0 0}.parent-review #review-options summary{font-size:12px}
 .page-dock #position{min-width:72px;font-size:12px}.page-dock .group{gap:6px}.page-dock button{padding:7px 10px}
}
@media print{
 .page-dock,#review-tools{display:none!important}.exam-layout{padding-bottom:0}.has-submission .exam-side{display:block!important;position:static;max-height:none;overflow:visible}.has-submission .exam-side>.submitted-details{display:none}.has-submission #results .actions{display:none}
}

/* Clear, generous marks in the external gutter; answers follow the visible page. */
.has-submission .paper{width:calc(100% - 76px);margin-right:76px}
.paper-check{width:66px;min-height:76px;padding:8px 5px;left:calc(100% + 6px);gap:5px;border:0;border-radius:12px;background:#f6f1df;color:#866019;box-shadow:none;line-height:1.05}
.paper-check strong{font-size:38px;font-weight:650;line-height:1}.paper-check span{font-size:15px;font-weight:600}
.paper-check.correct{color:#237347;background:#edf7ef}.paper-check.incorrect{color:#b23832;background:#fff0eb}.paper-check:hover{filter:brightness(.96)}
.paper-symbol{font-size:clamp(30px,3.8vw,48px);font-weight:650}.paper-note-pin{width:30px;height:30px;min-height:30px;font-size:14px}
.answer-scope{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;background:#eaf2ee;border-radius:9px;padding:12px 14px;margin:0 0 12px}.answer-scope>strong{font-size:15px;color:#285e4d}.answer-scope label{display:flex;gap:6px;align-items:center;font-size:12px;margin:0;font-weight:400}.answer-scope p{flex-basis:100%;margin:0;font-size:12px}
.marking-info{font-size:12px;margin:8px 0 14px}.has-submission #results h2{font-size:17px;margin-bottom:6px}.has-submission #results .score{font-size:21px;margin:4px 0 10px}.has-submission #results .result{padding:16px 0}.has-submission #results .result>strong{font-size:18px}
@media(max-width:900px){.has-submission .paper{width:calc(100% - 60px);margin-right:60px}.paper-check{width:52px;min-height:64px;left:calc(100% + 4px);padding:7px 3px;gap:4px}.paper-check strong{font-size:32px}.paper-check span{font-size:13px}}
@media print{.answer-scope{display:none}[data-answer-id][hidden],[data-result-id][hidden]{display:block!important}}

#review-tools>p.hint:first-of-type{display:none}
/* Keep marking controls visible while the independent answer pane scrolls. */
@media(min-width:901px){
 .parent-review #review-tools{position:sticky;top:0;z-index:12;background:#fff;border-color:#c1d3cd;box-shadow:0 5px 14px #173e3914;margin-bottom:14px}
 .parent-review .exam-side{scroll-padding-top:190px}
 .parent-review #review-options[open]{max-height:45vh;max-height:45dvh;overflow-y:auto}
}
.paper-overlay{z-index:5}.mark-surface{z-index:4}
.paper-direct-comment{position:absolute;display:block;max-width:55%;width:max-content;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.3;font-weight:550;color:#b32626;background:transparent;padding:3px 5px;transform:none;border:0;pointer-events:auto}
.paper-editable-mark{pointer-events:auto}.parent-review .paper-editable-mark{cursor:grab;touch-action:none;user-select:none}.parent-review .paper-editable-mark:active{cursor:grabbing}
.selected-mark{outline:2px dashed #b53930!important;outline-offset:4px}.parent-check-note{display:block;color:#8b362d;font-size:13px;margin-bottom:5px}.parent-check-note:empty{display:none}
#comment-size{max-width:180px;vertical-align:middle}#comment-size-value{padding:0 8px;font-weight:600}#review-options .actions{margin-top:10px}#review-options .actions button{font-size:12px;padding:7px 9px}
@media print{.selected-mark{outline:0!important}}

.result.selected-answer{background:#edf6f0;border-radius:9px;box-shadow:inset 3px 0 #287451;padding-left:12px!important;padding-right:12px!important}.result.selected-answer:focus{outline:0}

.task-filter-bar{display:flex;align-items:end;gap:12px;flex-wrap:wrap;margin:20px 0 10px}.task-filter-bar label{margin:0;min-width:160px}.task-filter-bar>.hint{align-self:center}
#exam-clock{font-size:13px;text-align:center;color:#315f50;font-weight:600;margin-top:5px;max-width:480px;line-height:1.35}.clock-warning{color:#a74b25!important}
.time-notice{position:fixed;z-index:40;top:12px;left:50%;transform:translateX(-50%);width:min(520px,calc(100vw - 24px));padding:16px;display:flex;gap:16px;align-items:center;background:#fff4d9;border:1px solid #d6a95b;box-shadow:0 4px 24px #0002;border-radius:12px;font-size:15px}.time-notice strong{flex:1}.time-notice button{white-space:nowrap}
@media(max-width:900px){.parent-review #review-tools{bottom:calc(108px + env(safe-area-inset-bottom))}.task-filter-bar label{flex:1;min-width:125px}#exam-clock{max-width:280px;font-size:12px}.exam-layout{padding-bottom:130px}.exam-layout.has-submission{padding-bottom:220px}}
@media print{.time-notice{display:none!important}}

.assignment-history-badge{display:inline-block;font-size:12px!important;padding:5px 8px;background:#f0f3f4;border-radius:5px;margin:6px 0;color:#657982!important}.assignment-history-badge.assigned-before{background:#e3f1e8;color:#286346!important}

/* Keep the paper near the top; identity details and tools no longer consume its column. */
.exam-open header{padding:9px 24px;min-height:62px;gap:12px}.exam-open header a{font-size:20px}.exam-open header>div>p{display:none}.exam-open header p{display:none}
.exam-open main{max-width:1600px;padding:12px 24px 100px}.exam-open .exam-layout{gap:12px 18px}.exam-open .exam-heading .titlebar{margin-bottom:0;gap:12px;align-items:flex-start}.exam-open .exam-heading h1{font-size:21px;margin-bottom:3px}.exam-open .exam-heading .titlebar p{font-size:12px;margin:3px 0}.exam-open .exam-heading .actions{gap:6px}.exam-open .exam-heading .actions button,.exam-open .exam-heading .actions .button{font-size:12px;padding:6px 10px;min-height:36px}
.paper-details{font-size:11px;margin:3px 0 0}.paper-details summary{font-weight:400;color:#6d7d7d}.paper-details p{margin:5px 0!important}.exam-open #paper-hint{display:none}.exam-open .paper{margin-top:0}.exam-open .locked-banner{margin:7px 0 0;padding:8px 12px;font-size:12px}
#writing-tools{margin:0 0 12px;gap:6px;padding:10px}#writing-tools button{padding:7px 9px;font-size:12px}#writing-tools label{font-size:12px}#writing-tools select{min-height:38px;padding:6px}
@media(min-width:901px){.exam-open .exam-side{position:sticky;top:12px;max-height:calc(100dvh - 110px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}}
@media(max-width:900px){.exam-open header{padding:8px 12px;flex-direction:row;align-items:center;flex-wrap:wrap}.exam-open header a{font-size:17px}.exam-open header nav{gap:6px}.exam-open header nav button{font-size:12px;padding:6px 9px;min-height:36px}.exam-open main{padding:10px 12px 100px}.exam-open .exam-heading .titlebar{flex-direction:row;flex-wrap:wrap}.exam-open .exam-heading h1{font-size:18px}.exam-open .exam-heading .actions{margin-top:2px}.exam-open .exam-layout{display:block}.exam-open .exam-heading{margin-bottom:12px}#writing-tools{position:fixed;z-index:21;left:12px;right:12px;bottom:calc(105px + env(safe-area-inset-bottom));margin:0 auto;max-width:650px;flex-wrap:nowrap;overflow-x:auto;box-shadow:0 3px 16px #173e3924}#writing-tools>*{flex-shrink:0}#writing-tools button{min-height:44px}#writing-tools label{white-space:nowrap}.exam-open .exam-layout{padding-bottom:210px}}
@media print{.paper-details,#writing-tools{display:none!important}.exam-open main{padding:0}}

/* Related papers stay together while each remains independently selectable. */
.paper-source-group { margin: 12px 0; min-width: 0; }
.paper-source-heading { background: #edf5f2; border: 1px solid #d4e4de; border-radius: 10px; padding: 14px; }
.paper-source-heading p { margin: 6px 0; overflow-wrap: anywhere; }
.paper-source-group .paper-choice { margin: 8px 0; }
.paper-source-group[hidden] { display: none; }
@media (max-width:600px) { .paper-source-heading { padding: 10px; } .paper-source-heading button { min-height:44px; } }

/* Per-question inputs stay usable by touch without revealing the key. */
.answer-label { display:block; margin-bottom:8px; }
.answer-choices { display:flex; flex-wrap:wrap; gap:8px; border:0; padding:0; margin:6px 0 12px; }
.answer-choices label { margin:0; cursor:pointer; position:relative; flex:0 0 48px; }
.answer-choices input { position:absolute; inset:0; opacity:0; width:100%; height:100%; margin:0; cursor:pointer; }
.answer-choices span { display:grid; place-items:center; min-height:48px; border:1px solid #bfcec8; border-radius:9px; background:white; font-size:18px; }
.answer-choices input:checked + span { background:#205e54; color:white; border-color:#205e54; }
.answer-choices input:focus-visible + span { outline:3px solid #d6b960; outline-offset:2px; }
.answer-choices input:disabled + span { cursor:default; }
.answer-table label { display:block; margin:10px 0; font-size:14px; font-weight:500; }
.answer-table select { margin-top:5px; min-height:44px; }
.answer-row textarea { max-width:100%; }
.reference-image { display:block; width:100%; height:auto; margin-top:12px; border:1px solid #d6dfdb; }
.reference-details p { white-space:pre-wrap; }
.legacy-notes { border-top:1px solid #d6dfdb; padding-top:12px; margin:12px 0; }
.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; }

/* A canvas eraser removes handwriting without touching the scanned question. */
#ink.erasing { cursor:crosshair; }
#confirm-text { white-space:pre-line; overflow-wrap:anywhere; max-height:55vh; max-height:55dvh; overflow-y:auto; }
#eraser-size-label[hidden] { display:none; }

.submission-checklist { margin-top:14px; white-space:normal; }
.confirmation-row { border-top:1px solid #d6e0e2; padding:14px 0; }
.confirmation-row>div { display:flex; align-items:center; justify-content:space-between; gap:8px; }
.confirmation-row select { margin-top:6px; font-size:14px; }
.confirmation-row button { font-size:12px; padding:6px 9px; }
.result-counts { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px; }
.result-counts>div { background:#edf4f0; padding:9px; border-radius:8px; }
.result-counts strong { display:block; font-size:22px; color:#205f56; }
.result-counts span { font-size:12px; }
.learning-summary h3 { margin:10px 0; }
.learning-summary p { font-size:13px; }
.result-filters { display:flex; flex-wrap:wrap; gap:6px; margin:12px 0; }
.result-filters button { font-size:12px; padding:6px 9px; }
.page-only,.question-actions label { display:flex; align-items:center; gap:7px; font-size:13px; }
.question-actions { display:flex; flex-wrap:wrap; align-items:center; gap:10px; margin:12px 0; }
.question-actions button { font-size:13px; }
.question-explanation { background:#eff5f1; border-left:3px solid #8db5a6; padding:10px; margin:10px 0; }
.question-explanation p { white-space:pre-wrap; }
.help-task-note { color:#976011; font-size:13px; max-width:300px; overflow-wrap:anywhere; }
@media print { .result-filters,.question-actions,.page-only { display:none!important; } }

/* Keep one question and its actual editable feedback together during review. */
.question-focus .exam-side{display:flex;flex-direction:column}
.question-focus .exam-side>#results{order:-1}
.question-focus .exam-side>:not(#results):not(#review-tools){display:none!important}
.question-focus #results>h2,.question-focus #results>.score,.question-focus #learning-summary,.question-focus #results>.marking-info{display:none}
#question-navigation{position:sticky;top:0;z-index:14;background:white;padding:10px 0 12px;border-bottom:1px solid #d6e0e2}
#question-navigation[hidden]{display:none}
#question-navigation .actions{gap:5px}
#question-navigation button{font-size:12px;padding:7px 9px}
.question-focus .result{border-top:0;padding-top:12px}
.question-focus .question-actions [data-jump-question]{display:none}
@media(max-width:900px){
 .question-focus{padding-bottom:calc(48dvh + 120px)!important}
 .question-focus .exam-side{position:fixed;left:0;right:0;bottom:calc(90px + env(safe-area-inset-bottom));top:auto;z-index:19;max-height:44vh;max-height:44dvh;overflow-y:auto;overscroll-behavior:contain;background:#fff;border-top:2px solid #8db5a6;box-shadow:0 -4px 18px #173e3920;margin:0;padding:0 14px}
 .question-focus .exam-side>#results{padding:0 0 16px;margin:0;border:0}
 .question-focus #review-tools{position:static;max-height:none;box-shadow:none;max-width:none;margin:0 0 12px}
}
@media print{
 .question-focus .exam-side>:not(#results):not(#review-tools){display:block!important}
 .question-focus #results>h2,.question-focus #results>.score,.question-focus #learning-summary{display:block}
 #question-navigation{display:none!important}
 .question-focus [data-result-id][hidden]{display:grid!important}
}

.completion-details{border-bottom:1px solid #d6e0e2;padding:8px 0 12px;margin-bottom:10px}
.completion-details>summary{cursor:pointer;font-size:14px;font-weight:600}
.completion-details>summary span{display:block;font-size:12px;font-weight:400;color:#657982;margin:3px 0 0 16px}
.compact-result-filter{display:flex;align-items:center;gap:10px;margin:8px 0;font-size:13px}
.compact-result-filter select{width:auto;flex:1;min-height:40px;font-size:13px;padding:7px 10px}
#question-navigation>strong{display:block;font-size:17px}
#question-navigation>p{margin:4px 0 8px}

.review-question-list{display:flex;flex-wrap:wrap;gap:5px;max-height:108px;overflow-y:auto;margin:8px 0 10px}
.review-question-list button{min-height:36px;padding:5px 9px;font-size:13px}
.page-mark-list{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:8px 0 12px}
.page-question-mark{min-height:40px;padding:7px 10px;font-size:13px;gap:8px}
.page-question-mark strong{font-size:22px;line-height:1}
.page-question-mark.correct{color:#237347;background:#edf7ef}
.page-question-mark.incorrect{color:#b23832;background:#fff0eb}
.page-question-mark.review,.page-question-mark.blank{color:#866019;background:#f6f1df}
.page-question-mark.review strong,.page-question-mark.blank strong{font-size:13px}

/* Question selection scrolls only the paper pane, never the whole screen. */
.question-focus .workspace{position:sticky;top:12px;height:calc(100vh - 110px);height:calc(100dvh - 110px);overflow:auto;overscroll-behavior:contain;scrollbar-gutter:stable;overflow-anchor:none;padding-right:78px}
.question-focus .exam-side{overflow-anchor:none}
.question-focus .paper{width:100%;margin-right:0}
@media(max-width:900px){
 .question-focus .workspace{top:0;height:calc(50vh - 70px);height:calc(50dvh - 70px);padding-right:62px}
 .question-focus{padding-bottom:120px!important}
}
.paper-check.review strong,.paper-check.blank strong{font-size:12px;overflow-wrap:anywhere}
@media print{.question-focus .workspace{position:static;height:auto;overflow:visible;padding-right:78px}}
.mark-adjustment{color:#205f56;font-size:13px;font-weight:550}

/* Stable feedback frame: the controls never move when the selected answer changes. */
.question-focus .exam-side{height:calc(100vh - 110px);height:calc(100dvh - 110px);overflow:hidden}
.question-focus #results{display:flex;flex-direction:column;height:100%;min-height:0;margin:0;overflow:hidden}
.question-focus #question-navigation{flex:none;position:relative;top:auto}
.question-focus #question-navigation>strong{height:24px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.question-focus #review-form{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;overflow-anchor:none}
.question-focus #results>.actions{flex:none;margin-top:8px}
.question-focus .review-question-list{height:76px;min-height:76px;align-content:flex-start}
@media(max-width:900px){
 .question-focus .exam-side{height:44vh;height:44dvh}
 .question-focus .review-question-list{height:40px;min-height:40px;flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden}
 .question-focus .review-question-list button{flex:none}
}
@media print{.question-focus .exam-side,.question-focus #results,.question-focus #review-form{height:auto;overflow:visible;display:block}}
.question-focus .exam-side>#results{flex:1;min-height:0;height:auto}
.question-focus .exam-side>#review-tools{flex:none;position:static;max-height:25%;overflow-y:auto;margin:8px 0 0}
.question-focus .review-question-list{height:42px;min-height:42px;flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden;align-content:normal;scroll-behavior:auto}
.question-focus .review-question-list button{flex:none}
.review-score-summary{font-size:13px;padding:0 0 8px;margin-bottom:8px;border-bottom:1px solid #d6e0e2}
.review-score-summary>summary{cursor:pointer;font-weight:650;color:#205f56}
.review-score-summary>p{font-size:12px;margin:6px 0 0}
@media(max-width:900px){
 .question-focus #question-navigation{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:4px 8px}
 .question-focus #question-navigation>.review-score-summary{margin:0;padding:0;border:0}
 .question-focus #question-navigation>.review-score-summary[open]{grid-column:1/-1}
 .question-focus #question-navigation>.compact-result-filter,.question-focus #question-navigation>.review-question-list,.question-focus #question-navigation>.actions{grid-column:1/-1;margin:3px 0}
 .question-focus #question-navigation>p{display:none}
}

/* Leave room for both the complete chip and a non-overlay horizontal scrollbar. */
.question-focus .review-question-list{height:72px;min-height:72px;max-height:72px;padding:2px 4px 4px;align-items:flex-start;box-sizing:border-box;scroll-padding-inline:8px}
.question-focus .review-question-list button{height:44px;min-height:44px;align-self:flex-start;white-space:nowrap}

/* Parent review reserves the panel for the question, not history and duplicate actions. */
@media(min-width:901px){
 .exam-open .exam-layout.parent-review{grid-template-columns:minmax(0,1fr) minmax(370px,410px)}
 .parent-review.question-focus .exam-side{height:calc(100dvh - 90px);max-height:calc(100dvh - 90px)}
}
.parent-review.question-focus #results{padding:12px 14px}
.parent-review.question-focus #question-navigation{padding:4px 0 9px}
.parent-review.question-focus #review-form{padding:0 8px 12px 0;scrollbar-gutter:stable;flex:1 1 auto;min-height:120px}
.parent-review.question-focus .result{padding:12px 0}
.parent-review .question-explanation{font-size:14px;line-height:1.6}
.parent-review .review-marks{display:flex;flex-wrap:wrap;line-height:1.5}
.parent-review .review-marks input{width:85px;max-width:85px;flex:none}
.review-archive,.overall-feedback{border-top:1px solid #d6e0e2;margin:12px 0 0;padding:10px 0;font-size:13px}
.review-archive>summary,.overall-feedback>summary{font-weight:550}
.review-archive .review-history{font-size:13px;margin:10px 0;padding:10px}
.review-archive h3{font-size:14px;margin:10px 0}
.review-archive .actions{gap:6px}
.review-archive button{font-size:12px;min-height:38px;padding:7px 10px}
.paper-mark-tools{margin:0}
.paper-mark-tools>summary{font-size:14px;line-height:26px}
.paper-mark-tools h2{display:none}
.paper-mark-tools>p{font-size:12px;margin:8px 0}
.parent-review.question-focus .exam-side>#review-tools{padding:8px 12px;max-height:28%;border-radius:8px}
.paper-mark-tools .review-actions{gap:5px;margin-top:8px}
.paper-mark-tools .review-actions button{min-height:38px;font-size:12px;padding:6px 9px}
.parent-review.question-focus #review-form>button.primary{position:sticky;bottom:0;z-index:9;width:100%;margin:8px 0 0;box-shadow:0 -4px 10px #fff;background:#205f56}
@media(max-width:900px){
 .parent-review.question-focus .exam-side{height:54dvh;max-height:54dvh;bottom:calc(85px + env(safe-area-inset-bottom))}
 .parent-review.question-focus .workspace{height:calc(40dvh - 65px)}
 .parent-review.question-focus #review-form{min-height:100px}
 .parent-review.question-focus .exam-side>#review-tools{max-height:25%}
}
@media print{
 .review-archive>*:not(summary),.overall-feedback>*:not(summary){display:block!important}
 .parent-review.question-focus #review-form>button.primary,.paper-mark-tools{display:none!important}
}
/* Material stays with the answer area; its own scroll never moves the paper. */
.reading-material{background:#fff;border:1px solid #b9cece;border-radius:10px;margin:8px 0;padding:10px;flex-shrink:0}
.reading-material summary{font-weight:700;cursor:pointer;color:#245e55}
.reading-pages{max-height:42dvh;overflow:auto;overscroll-behavior:contain;resize:vertical;min-height:140px;margin-top:8px}
.reading-pages img{display:block;width:100%;height:auto;margin-bottom:8px}
.reading-material[hidden]{display:none}
@media(max-width:700px){.reading-pages{max-height:30dvh}.reading-material{padding:8px}}
/* Reading previews must not consume the fixed review controls or feedback viewport. */
.question-focus #review-form>.reading-material{margin:12px 0;flex-shrink:1}
.question-focus #review-form>.reading-material .reading-pages{max-height:32dvh;resize:none}
/* Submitted review: material opens separately, leaving the marking frame unchanged. */
.review-material-dialog{width:min(900px,94vw);max-width:94vw;max-height:90dvh;padding:16px;border:1px solid #bdcfd1;border-radius:12px}
.review-material-dialog::backdrop{background:#173e3970}
.review-material-dialog>.actions{justify-content:space-between;position:sticky;top:0;background:white;z-index:1}
.review-material-dialog .reading-pages{max-height:72dvh;resize:none}
.review-material-dialog .reading-material{margin:10px 0 0}
@media(max-width:900px){.question-focus #question-navigation .actions{flex-wrap:nowrap}.question-focus #question-navigation .actions button{min-width:0;flex:1}.question-focus #review-form{min-height:100px}}
@media print{.review-material-dialog{display:none!important}}