:root{color-scheme:light;--surface:#fff;--page:#f8fafc;--info:#eff6ff;--info-border:#dbeafe;--input-border:#cfd8e4;--error-bg:#fff4f2;--hover:#fbfcfe;--code:#334155;--secondary:#52637a;--success-bg:#eaf6ef;--danger-bg:#fff0ef;--quiz-bar:#f8fafcf2;--ink:#1e293b;--muted:#64748b;--line:#dfe5ed;--soft:#f8fafc;--accent:#2563eb;--accent-dark:#1d4ed8;--danger:#b42318;--green:#167347;--radius:7px}
*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--ink);font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","Microsoft JhengHei",sans-serif;-webkit-text-size-adjust:100%}h1,h2,h3,p{margin:0 0 12px}h1{font-size:23px;line-height:1.35;font-weight:650;letter-spacing:-.025em}h2{font-size:16px;font-weight:650;line-height:1.45}h3{font-size:14px;font-weight:650}a{color:var(--accent);text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button,input,select,textarea,a,summary{outline-offset:3px}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid #60a5fa}.muted,.hint,.page-foot{color:var(--muted)}.small,.hint{font-size:12px}.hint{margin:9px 0 0;line-height:1.65}.page-foot{font-size:11px;margin:24px 0 0}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-100px;left:16px;background:var(--surface);padding:10px;z-index:999}.skip-link:focus{top:10px}
.course-header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:75px;padding:13px max(24px,calc((100vw - 1360px)/2));background:var(--surface);border-bottom:1px solid var(--line)}.course-brand{display:flex;align-items:center;gap:11px;color:var(--ink);font-size:15px;font-weight:650;flex-shrink:0;line-height:1.35}.course-mark{width:34px;height:34px;border-radius:6px;display:grid;place-items:center;background:var(--info);color:var(--accent);font-size:13px;letter-spacing:-.04em;border:1px solid var(--info-border)}.course-subtitle{display:block;font-size:10px;font-weight:400;color:var(--muted);margin-top:3px}.header-controls{display:flex;align-items:center;justify-content:flex-end;gap:9px;min-width:0}.account-name{font-size:12px;margin:0 5px;max-width:220px;overflow-wrap:anywhere}.assignment-control{min-width:0}.assignment-control select{max-width:250px;height:34px;padding:5px 29px 5px 10px;background:var(--soft);border:1px solid var(--line);border-radius:5px;font-size:12px;color:var(--ink)}.workspace{max-width:1360px;margin:0 auto;padding:27px 24px 45px;min-width:0}.workspace.narrow{max-width:850px}.workspace:focus{outline:0}.page-title{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}.page-title p:last-child{margin-bottom:0}.overline{display:flex;align-items:center;gap:9px;font-size:11px;font-weight:650;color:var(--muted);margin-bottom:7px}.overline .badge{text-transform:none;font-weight:500}.section-block{padding:21px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin:18px 0}.section-title{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:13px}.section-title h2{margin:0}.section-heading{margin-bottom:20px}.section-heading p{color:var(--muted);font-size:13px}.section-heading h1{margin-bottom:8px}.section-heading h2{margin-top:25px}.button-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:5px;min-height:39px;border:1px solid var(--input-border);border-radius:5px;background:var(--surface);color:var(--code);font-size:12px;font-weight:550;line-height:1.35;padding:8px 13px;text-decoration:none;white-space:normal}.btn:hover{background:var(--page);border-color:#94a3b8}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-dark)}.btn.ghost{border-color:transparent;background:transparent;color:var(--muted)}.btn.ghost:hover{border-color:var(--line);background:var(--soft)}.btn.small{min-height:33px;padding:6px 10px;font-size:11px}.btn.danger{background:#fff5f4;color:var(--danger);border-color:#f3c3bd}.btn.full{width:100%}.badge{display:inline-flex;align-items:center;padding:3px 7px;border-radius:4px;font-size:10px;font-weight:550;line-height:1.3;background:var(--soft);color:#64748b;white-space:nowrap}.badge.published,.badge.open,.badge.current{background:var(--info);color:#2563eb}.badge.draft{background:#fff8e5;color:#946200}.badge.archived{background:var(--soft);color:#64748b}
.sign-in-panel{width:min(100%,390px);padding:26px;border:1px solid var(--line);border-radius:8px;background:var(--surface);margin:7vh auto 0}.sign-in-panel .hint{margin-top:18px}.form-panel{max-width:480px;margin:10px auto;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:7px}.field{display:flex;flex-direction:column;gap:6px;font-size:12px;font-weight:550;margin-bottom:15px;min-width:0}.field input,.field select,.field textarea,.compact-select select,.search input{width:100%;min-width:0;border:1px solid var(--input-border);border-radius:5px;background:var(--surface);color:var(--ink);padding:8px 10px;min-height:38px;font-size:13px}.field small{font-size:11px;font-weight:400;color:var(--muted)}.field textarea{min-height:78px;resize:vertical;line-height:1.5}.field input:disabled{background:var(--soft);color:var(--muted)}.form-error{font-size:12px;color:var(--danger);background:var(--error-bg);padding:10px 12px;margin:12px 0;border-radius:5px;overflow-wrap:anywhere}.form-error:empty{display:none}.empty-state{padding:32px 0}.empty-state p{color:var(--muted)}
.student-identity h1{font-size:21px;margin:0 0 5px;overflow-wrap:anywhere}.identity-meta{display:flex;gap:5px 17px;flex-wrap:wrap;font-size:11px;color:var(--muted)}.ta-contact{padding:12px 15px;border-left:3px solid #93b4fb;background:var(--info);border-radius:0 5px 5px 0;font-size:12px;margin:16px 0 22px;line-height:1.6}.ta-contact span{display:block;color:var(--secondary);font-size:11px;margin-top:2px}.grade-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:0}.exercise-card{padding:6px 20px 8px 0;min-width:0}.exercise-card+.exercise-card{border-left:1px solid var(--line);padding-left:20px}.exercise-label{font-size:11px;font-weight:600;color:var(--muted);margin-bottom:5px}.exercise-score{display:flex;align-items:baseline;gap:5px;margin:3px 0}.exercise-score strong{font-size:25px;font-weight:650;letter-spacing:-.035em}.exercise-score span{font-size:12px;color:var(--muted)}.score-meta{color:var(--muted);font-size:10px;line-height:1.7}.score-pill{display:inline-block;color:var(--accent);font-size:10px}.pregrade-note{font-size:11px;margin-top:8px;color:var(--muted)}.pregrade-note summary{cursor:pointer}.pregrade-note p{margin:7px 0 0;overflow-wrap:anywhere}.rules ol{padding-left:19px;margin:0}.rules li{font-size:12px;line-height:1.75;margin-bottom:7px}.rules li:last-child{margin-bottom:0}.accept{display:flex;align-items:flex-start;gap:9px;font-size:12px;line-height:1.6;margin:17px 1px}.accept input{width:17px;height:17px;flex-shrink:0;margin:2px 0 0;accent-color:var(--accent)}.round-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.round-card{padding:2px 0;min-width:0}.round-card+.round-card{padding-left:20px;border-left:1px solid var(--line)}.round-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.round-heading h3{margin:0}.round-card p{font-size:11px;color:var(--muted);line-height:1.7;margin-bottom:10px}.round-result{font-size:11px;margin:6px 0 11px;color:var(--accent)}
.top-tools{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px}.timer{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:650;font-variant-numeric:tabular-nums;color:var(--accent)}.timer small{font-size:10px;font-weight:400;color:var(--muted)}.timer.urgent{color:var(--danger)}.quiz-heading{margin-bottom:20px}.quiz-heading .student-identity h1{font-size:18px}.steps{display:flex;gap:7px;flex-wrap:wrap;margin:18px 0}.step{width:34px;height:34px;border:1px solid var(--line);border-radius:5px;background:var(--surface);color:var(--muted);font-size:11px}.step.answered{background:var(--info);color:var(--accent);border-color:#d7e5ff}.step.current{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);font-weight:650}.question-panel{padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:7px}.question-meta{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:9px;font-size:11px;color:var(--muted);margin-bottom:17px}.program-score{padding:3px 6px;background:var(--soft);border-radius:4px}.question-title{font-size:18px;line-height:1.75;font-weight:550;margin-bottom:20px;overflow-wrap:anywhere}.source{border:1px solid var(--line);background:var(--page);border-radius:5px;margin:16px 0 20px;overflow:hidden}.source summary{cursor:pointer;padding:8px 12px;color:var(--muted);font-size:11px}.code-lines{padding:0 12px 12px}.code-line{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:12px;padding-top:5px}.line-label{font-size:10px;color:#7a8799;line-height:2;white-space:nowrap}code{font:12px/1.8 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--code)}.source-note{padding:0 12px 10px;margin:0;color:var(--muted);font-size:10px}.concept{font-size:11px;color:#946200;margin:12px 0 18px}.options{padding:0;margin:0;border:0;display:grid;gap:9px}.option{display:flex;align-items:center;gap:11px;padding:12px 14px;border:1px solid var(--line);border-radius:5px;min-height:48px;cursor:pointer;background:var(--surface);overflow-wrap:anywhere}.option:hover{background:var(--soft)}.option.selected{background:var(--info);border-color:#80a7f5}.option:focus-within{outline:2px solid #93c5fd;outline-offset:2px}.option input{width:16px;height:16px;accent-color:var(--accent);flex-shrink:0;margin:0}.option-letter{font-size:11px;font-weight:650;color:var(--muted);min-width:13px}.option-text{font-size:13px}.quiz-nav{display:flex;justify-content:space-between;align-items:center;gap:12px;position:sticky;bottom:0;background:var(--quiz-bar);padding:14px 0 calc(10px + env(safe-area-inset-bottom));margin-top:8px}.quiz-nav .btn{min-width:95px;min-height:42px}.quiz-nav-count{font-size:11px;color:var(--muted);text-align:center}.save-status{font-size:11px;color:var(--muted);margin:3px 0}.save-status.error{color:var(--danger)}.result-summary{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;margin:22px 0 16px}.result-summary h2{margin:0 0 5px}.result-summary p{font-size:11px;color:var(--muted);margin:0}.result-number{display:flex;gap:5px;align-items:baseline;white-space:nowrap}.result-number strong{font-size:32px;color:var(--accent);letter-spacing:-.04em}.result-number span{font-size:14px;color:var(--muted)}.group-summary{display:flex;gap:7px;flex-wrap:wrap;font-size:11px}.group-summary span{padding:4px 8px;border:1px solid var(--line);border-radius:4px;background:var(--surface)}.pending-review{font-size:12px;color:var(--secondary);padding:14px;background:var(--info);border:1px solid var(--info-border);border-radius:5px;margin:20px 0}.review{border:1px solid var(--line);border-radius:5px;background:var(--surface);margin:10px 0}.review summary{display:flex;gap:11px;align-items:flex-start;cursor:pointer;padding:15px;list-style:none}.review summary::-webkit-details-marker{display:none}.review-title{font-size:12px;line-height:1.7}.review-title strong{font-size:11px;color:var(--muted)}.result-icon{width:20px;height:20px;flex-shrink:0;display:grid;place-items:center;background:var(--success-bg);border-radius:50%;color:var(--green);font-size:11px;margin-top:2px}.review.incorrect .result-icon{background:var(--danger-bg);color:var(--danger)}.review-body{padding:15px;border-top:1px solid var(--line)}.review-body p{font-size:12px;overflow-wrap:anywhere}.picked-answer{color:var(--muted)}.answer-box{padding:12px;background:var(--info);border-radius:4px;margin-top:12px}.answer-label{font-size:11px;font-weight:650;color:var(--accent)}.answer-box p{margin:7px 0 0}
.schedule-fields{display:grid;grid-template-columns:repeat(2,minmax(0,260px));gap:14px}.schedule-panel .hint{margin:0 0 14px}.schedule-panel .field{margin-bottom:8px}.more-controls{display:grid;grid-template-columns:minmax(0,1fr);gap:0}.share-row{display:flex;align-items:center;gap:16px;margin-top:13px;flex-wrap:wrap}.share-url{font-size:11px;overflow-wrap:anywhere}.qr{width:105px;height:105px;padding:5px;border:1px solid var(--line);border-radius:4px}.table-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:15px 0 8px}.search{flex:1;min-width:190px;max-width:310px}.search input{font-size:12px;min-height:34px}.compact-select select{min-height:34px;font-size:11px;max-width:150px}.export-tools{display:flex;gap:5px;flex-wrap:wrap;margin-left:auto}.table-wrap{overflow-x:auto;max-width:100%;margin-top:16px;border:1px solid var(--line);border-radius:5px;background:var(--surface)}.score-table{border-collapse:collapse;width:100%;min-width:920px;text-align:left;font-size:11px}.score-table th{background:var(--page);font-size:10px;font-weight:650;padding:12px 13px;color:var(--secondary);white-space:nowrap;border-bottom:1px solid var(--line)}.score-table th span{font-weight:400}.score-table td{padding:13px;border-bottom:1px solid var(--line);vertical-align:top}.score-table tr:last-child td{border-bottom:0}.score-table tbody tr:hover td{background:var(--hover)}.table-student{font-weight:550;font-size:12px;display:block;max-width:205px;overflow-wrap:anywhere}.table-student small{display:block;font-size:10px;font-weight:400;color:var(--muted);margin-top:3px}.table-score strong{font-size:15px;font-weight:650}.table-score small{display:block;color:var(--muted);font-size:10px;white-space:nowrap;margin-top:2px}.table-score .score-pill{display:block}.table-edit{display:block;border:0;background:none;color:var(--accent);padding:4px 0 0;font-size:10px;min-height:25px}.attempt-buttons{display:flex;flex-wrap:wrap;gap:4px;max-width:135px}.attempt-buttons .btn{min-height:29px;font-size:10px;padding:4px 7px}.record-buttons{display:flex;flex-direction:column;align-items:flex-start;gap:3px}.text-button{background:none;border:0;color:var(--secondary);font-size:10px;text-align:left;min-height:24px;padding:2px 0}.text-button:hover{text-decoration:underline;color:var(--accent)}.empty{text-align:center;color:var(--muted);padding:25px!important}.assignment-row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:12px 0;border-bottom:1px solid var(--line)}.assignment-row>div:first-child{display:flex;flex-direction:column;gap:3px}.assignment-row strong{font-size:12px}.assignment-list{margin:12px 0 18px}.import-controls{border-top:1px solid var(--line);padding-top:18px}.import-controls input[type=file]{padding:7px;font-size:12px}.import-summary{padding:15px;border:1px solid var(--info-border);background:var(--info);border-radius:5px;margin-top:15px}.import-summary h3{margin-bottom:12px}.preview-counts{display:flex;gap:22px;flex-wrap:wrap;margin:10px 0}.preview-counts dt{font-size:10px;color:var(--muted)}.preview-counts dd{font-size:17px;margin:0;font-weight:600}.import-summary .btn{margin-top:12px}
dialog{width:min(650px,calc(100% - 28px));max-height:87dvh;border:1px solid var(--line);border-radius:8px;padding:24px;background:var(--surface);color:var(--ink);box-shadow:0 18px 65px #0f172a33;overflow:auto}dialog::backdrop{background:#0f172a55}.dialog-head{display:flex;justify-content:space-between;align-items:flex-start;gap:15px;margin-bottom:12px}.dialog-head h2{font-size:16px;line-height:1.5;margin:0}.dialog-close{border:0;background:var(--soft);color:var(--muted);border-radius:4px;width:30px;height:30px;flex-shrink:0;font-size:19px}.dialog-copy{font-size:12px;color:var(--muted);line-height:1.7;margin:10px 0 18px}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin-top:19px}.method-help{background:var(--soft);padding:11px;font-size:11px;color:var(--muted);border-radius:4px;line-height:1.7}.private-password{display:block;padding:15px;background:var(--soft);font-size:16px}.audit-timeline{margin:18px 0 0;border-left:2px solid #dbeafe;padding-left:19px}.audit-entry{position:relative;padding:0 0 20px;margin-bottom:18px;border-bottom:1px solid var(--line)}.audit-entry:before{content:"";position:absolute;left:-25px;top:5px;width:10px;height:10px;border:2px solid #fff;border-radius:50%;background:#719cee}.audit-entry:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}.audit-entry-heading{display:flex;gap:12px;justify-content:space-between;align-items:baseline;flex-wrap:wrap}.audit-entry h3{font-size:12px;margin:0}.audit-time{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}.audit-actor{font-size:11px;color:var(--secondary);margin:4px 0 11px}.audit-changes{display:flex;flex-direction:column;gap:6px;font-size:11px}.change-row{display:grid;grid-template-columns:minmax(90px,.8fr) minmax(0,1fr) 14px minmax(0,1fr);align-items:start;gap:8px;line-height:1.65}.change-row>*{overflow-wrap:anywhere}.change-label{color:var(--muted)}.old-value{color:#64748b}.change-row strong{font-weight:550;color:var(--accent)}.audit-reason{font-size:11px;margin:12px 0 0;line-height:1.65;overflow-wrap:anywhere}.audit-reason strong{font-weight:600}#toast{position:fixed;bottom:23px;left:50%;transform:translateX(-50%);max-width:calc(100vw - 28px);padding:11px 15px;background:#1e293b;color:#fff;font-size:12px;border-radius:6px;opacity:0;pointer-events:none;z-index:300;transition:opacity .15s;box-shadow:0 3px 15px #0f172a26}#toast.visible{opacity:1}
@media(max-width:1000px){.course-header{padding:13px 20px;gap:18px}.account-name{display:none}.workspace{padding:23px 20px 35px}.header-controls{gap:5px}.grade-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.exercise-card:nth-child(odd){border-left:0;padding-left:0}.exercise-card:nth-child(even){border-left:1px solid var(--line);padding-left:20px}.export-tools{margin-left:0;width:100%}}
@media(max-width:650px){body{font-size:13px}.course-header{padding:12px 15px;flex-wrap:wrap;gap:11px}.course-brand{font-size:14px}.course-mark{width:31px;height:31px}.course-subtitle{font-size:9px}.header-controls{width:100%;justify-content:flex-end;gap:5px}.assignment-control{flex:1;margin-right:auto}.assignment-control select{width:100%;max-width:none;min-height:34px;font-size:12px}.header-controls>.btn{font-size:10px;padding:5px 8px;min-height:32px}.workspace{padding:21px 15px 32px}.page-title{gap:10px;margin-bottom:17px;flex-wrap:wrap}.page-title>.button-row{margin-left:auto}.page-title h1{font-size:20px}.student-identity h1{font-size:19px}.identity-meta{font-size:10px;gap:4px 11px}.section-block{padding:16px;margin:16px 0}.section-title{align-items:flex-start;gap:8px}.section-title .small{font-size:10px;text-align:right}.section-title h2,h2{font-size:14px}.sign-in-panel{padding:22px;margin:28px auto 0}.form-panel{padding:19px}.field input,.field select,.field textarea{font-size:14px;min-height:42px}.field{font-size:12px}.grade-grid{gap:13px 0}.exercise-card{padding-right:12px}.exercise-card:nth-child(even){padding-left:14px}.exercise-score strong{font-size:23px}.score-meta{font-size:10px}.rules li{font-size:12px;line-height:1.75;margin-bottom:9px}.accept{font-size:11px}.round-grid{grid-template-columns:1fr;gap:17px}.round-card+.round-card{padding:16px 0 0;border-left:0;border-top:1px solid var(--line)}.round-card .btn{min-height:40px}.ta-contact{font-size:12px;padding:11px 12px}.schedule-fields{grid-template-columns:minmax(0,1fr)}.schedule-fields .field{margin-bottom:2px}.schedule-panel .button-row{margin-top:10px}.table-toolbar{gap:8px}.search{max-width:none;min-width:100%}.search input{min-height:40px}.compact-select{flex:1}.compact-select select{max-width:none;width:100%;font-size:12px;min-height:38px}.export-tools{gap:3px}.export-tools .btn{flex:1;min-width:65px;font-size:10px;padding:7px 5px;min-height:36px}.roster-section{padding:15px 12px}.score-table{min-width:900px}.assignment-row{align-items:flex-start;gap:10px}.assignment-row>.button-row{justify-content:flex-end}.assignment-row .badge{font-size:9px}.assignment-row .btn{font-size:10px}.assignment-row .button-row{gap:4px}.preview-counts{gap:16px}.top-tools{margin-bottom:17px}.timer{font-size:18px}.timer small{display:none}.quiz-heading .student-identity h1{font-size:18px}.step{width:34px;height:36px}.steps{gap:6px}.question-panel{padding:19px 15px}.question-meta{font-size:10px;gap:7px;margin-bottom:14px}.question-title{font-size:16px;line-height:1.8}.option{padding:13px 11px;min-height:51px;gap:9px}.option-text{font-size:13px}.source summary{font-size:10px}.line-label{font-size:9px}code{font-size:11px;line-height:1.9}.code-line{gap:8px}.code-lines{padding:0 10px 10px}.quiz-nav{gap:7px}.quiz-nav .btn{min-width:91px;padding:9px;font-size:11px;min-height:43px}.quiz-nav-count{font-size:10px}.result-summary{gap:12px}.result-summary h2{font-size:15px}.result-summary p{font-size:10px}.result-number strong{font-size:28px}.review summary{padding:13px}.review-body{padding:13px}.review-title{font-size:12px}.group-summary{font-size:10px}.page-foot{font-size:10px}dialog{padding:18px;max-height:88dvh}.dialog-head h2{font-size:14px}.dialog-actions .btn{font-size:11px}.audit-timeline{padding-left:15px}.audit-entry:before{left:-21px}.change-row{grid-template-columns:minmax(73px,.8fr) minmax(0,1fr) 10px minmax(0,1fr);gap:5px;font-size:10px}.audit-time{font-size:9px}.source-note{font-size:9px}}
.credentials-path{display:block;margin:10px 0;padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:4px;font-size:11px;overflow-wrap:anywhere}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{.course-header,.button-row,.top-tools,.quiz-nav,.steps,.export-tools,.table-edit,.record-buttons,#toast{display:none!important}body{background:var(--surface)}.workspace{padding:0;max-width:none}.section-block,.question-panel,.review{break-inside:avoid}.page-foot{display:none}}

.staff-rounds{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,330px),1fr));gap:14px;margin-top:18px}.round-form{border:1px solid var(--line);border-radius:6px;padding:15px;min-width:0}.round-form .schedule-fields{grid-template-columns:minmax(0,1.5fr) minmax(100px,1fr)}.round-form h3{margin:0}.round-form .field small{font-size:10px;color:var(--muted)}.round-form input{min-width:0;width:100%}.round-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr))}@media(max-width:650px){.round-form .schedule-fields{grid-template-columns:1fr}.round-form{padding:13px}}

.round-score-table{min-width:0;width:100%}.round-score-table th,.round-score-table td{white-space:normal;overflow-wrap:anywhere}.round-score-table td:nth-child(3){max-width:250px}
@media(max-width:650px){.round-score-table,.round-score-table tbody{display:block;min-width:0}.round-score-table thead{display:none}.round-score-table tr{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:5px;background:var(--surface);margin:12px 0;padding:12px;gap:12px}.round-score-table td{display:block;border:0;padding:0;max-width:none!important}.round-score-table td:before{content:attr(data-label);display:block;font-size:10px;font-weight:600;color:var(--muted);margin-bottom:4px}.round-score-table td:nth-child(1),.round-score-table td:nth-child(3),.round-score-table td:nth-child(5){grid-column:1/-1}.round-score-table td:nth-child(1){font-weight:650}.round-score-table td:nth-child(4){grid-row:2;grid-column:2}}

.course-intro strong{font-size:15px;line-height:1.7;color:var(--ink)}.site-credit{text-align:center;color:var(--muted);font-size:11px;padding:0 16px 24px}.sign-in-panel .section-heading p+p{margin-top:10px}.btn.danger{background:var(--danger-bg);border-color:var(--danger);color:var(--danger)}

:root[data-theme="dark"]{color-scheme:dark;--ink:#e3eaf4;--muted:#a6b4c9;--line:#364458;--soft:#1c293b;--accent:#91b8ff;--accent-dark:#bad2ff;--danger:#ffaaa0;--green:#80d9af;--surface:#182232;--page:#101722;--info:#1b304d;--info-border:#365884;--input-border:#4a5c74;--error-bg:#442825;--hover:#223148;--code:#d5e1f5;--secondary:#bdcbe0;--success-bg:#193c30;--danger-bg:#442825;--quiz-bar:#101722f2}
.theme-control select{max-width:145px;min-height:36px;padding:5px 8px;border:1px solid var(--line);border-radius:5px;background:var(--surface);color:var(--ink);font-size:11px}.course-header{flex-wrap:wrap}.header-controls{flex-wrap:wrap}.roster-section>.section-title{flex-wrap:wrap;align-items:center}.roster-section>.section-title .button-row{margin-left:auto}.btn.primary{color:#fff;background:#2563eb;border-color:#2563eb}.btn.primary:hover{background:#1d4ed8;border-color:#1d4ed8}.badge{background:var(--soft);color:var(--muted)}.badge.open,.badge.published,.badge.current{background:var(--info);color:var(--accent)}.badge.closed{background:var(--soft)}.badge.upcoming,.badge.draft{background:var(--soft);color:var(--ink)}.concept{color:var(--muted)}.audit-entry:before{border-color:var(--surface)}.old-value,.line-label{color:var(--muted)}
@media(max-width:1000px){.score-table{min-width:0}.score-table thead{display:none}.score-table,.score-table tbody{display:block}.score-table tr{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;border-bottom:1px solid var(--line);padding:16px}.score-table td{display:block;min-width:0;border:0;padding:0;overflow-wrap:anywhere}.score-table td:before{content:attr(data-label);display:block;color:var(--muted);font-size:10px;margin-bottom:5px}.score-table td:nth-child(-n+2){grid-column:1/-1}.score-table .attempt-buttons{max-width:none}.score-table .record-buttons{flex-direction:row;flex-wrap:wrap;gap:10px}.table-score small{white-space:normal}.score-table .table-student{max-width:none}.field input,.field select,.field textarea,.search input{font-size:16px}.btn,.text-button,.table-edit{min-height:40px}}
@media(max-width:650px){.header-controls{width:auto;flex:1;justify-content:flex-end}.header-controls:has(.assignment-control){flex-basis:100%}.theme-control select{max-width:125px;min-height:36px}.course-brand{max-width:100%}.sign-in-panel{margin-top:15px}.section-title .button-row{flex-wrap:wrap}.score-table tr{gap:12px;padding:14px}.roster-section>.section-title .button-row{margin-left:0}.roster-section>.section-title{gap:12px}.course-intro strong{font-size:14px}.round-entry-form input{font-size:16px}}
@media print{:root[data-theme="dark"]{--ink:#1e293b;--muted:#64748b;--line:#dfe5ed;--surface:#fff;--page:#fff;--soft:#f8fafc;color-scheme:light}}

.preliminary-score{font-size:13px;font-weight:400;color:var(--muted);margin:7px 0}.final-score{font-size:19px;font-weight:700;line-height:1.5;color:var(--ink);margin:5px 0 9px}.final-score strong{font-size:23px;font-weight:700}.final-score span{font-weight:700}

.history-attempt{padding:14px 0;border-bottom:1px solid var(--line)}.history-attempt:last-child{border-bottom:0}.history-attempt .btn{margin-top:10px}.history-attempt h3{margin:0}

.btn.finish-lab{background:#b42318;border-color:#b42318;color:#fff;font-weight:700}.btn.finish-lab:hover:not(:disabled){background:#912018;border-color:#912018}

.staff-tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:22px}.staff-tab[aria-current="page"]{background:var(--info);color:var(--accent);border-color:var(--accent);font-weight:650}
:root[data-theme="dark"]{color-scheme:dark;--ink:#e8e8e8;--muted:#b3b3b3;--line:#363636;--soft:#262626;--accent:#8db8ff;--accent-dark:#bad2ff;--danger:#ffaaa0;--green:#80d9af;--surface:#1f1f1f;--page:#141414;--info:#292d33;--info-border:#41454c;--input-border:#505050;--error-bg:#3c2725;--hover:#282828;--code:#dedede;--secondary:#c4c4c4;--success-bg:#23392e;--danger-bg:#3c2725;--quiz-bar:#141414f2}
.icon-button{display:inline-flex;align-items:center;justify-content:center;width:40px;min-width:40px;height:40px;border:1px solid var(--line);border-radius:6px;padding:9px;background:var(--surface);color:var(--muted);cursor:pointer}.icon-button:hover:not(:disabled){background:var(--soft);color:var(--ink)}.icon-button svg{display:block;width:20px;height:20px;flex-shrink:0}.theme-toggle{border-color:transparent}.password-input{position:relative;display:flex;width:100%;min-width:0}.password-input input{width:100%;padding-right:48px!important}.password-toggle{position:absolute;right:2px;top:50%;transform:translateY(-50%);border:0;background:transparent;height:36px;min-height:36px}.date-time-control{display:flex;align-items:center;gap:5px;min-width:0}.date-time-control input{flex:1;min-width:0;width:0!important;padding:8px!important;font-size:13px}.date-time-control .icon-button{width:34px;min-width:34px;padding:6px}.date-time-control input::-webkit-calendar-picker-indicator{display:none}.audience-fields{border-top:1px solid var(--line);padding-top:14px;margin:6px 0 16px}.audience-fields [hidden]{display:none}.round-audience{font-size:12px;font-weight:550;color:var(--ink)}.audience-fields .hint{margin-top:0}.round-form .schedule-fields{grid-template-columns:minmax(0,1fr)}
.login-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);align-items:center;gap:72px;max-width:1000px;margin:65px auto 50px}.login-course{padding:20px 0}.login-course .overline{font-size:13px;letter-spacing:.06em;margin-bottom:20px}.login-course h1{font-size:30px;font-weight:650;line-height:1.25;max-width:440px;margin-bottom:8px}.course-code{font-size:14px;color:var(--muted);margin:0 0 28px}.course-school{font-size:14px;line-height:1.8;color:var(--secondary);margin-bottom:27px}.course-contact p{margin-bottom:21px;line-height:1.8;font-size:13px}.course-contact a{font-size:12px;overflow-wrap:anywhere}.login-layout .sign-in-panel{width:100%;max-width:none;margin:0;padding:32px}.login-layout .section-heading h2{font-size:24px;margin:0 0 10px}.login-layout .section-heading p{font-size:13px;line-height:1.7}.login-layout .hint{font-size:12px;margin-top:22px}.login-layout .field{margin-bottom:18px}.login-layout .field input{min-height:44px}.login-layout .btn.full{min-height:44px}.login-layout .form-error:empty{display:none}
@media(max-width:900px){.login-layout{gap:35px;margin-top:35px;grid-template-columns:minmax(0,1fr) minmax(0,380px)}.login-course h1{font-size:26px}}
@media(max-width:650px){.login-layout{grid-template-columns:minmax(0,1fr);gap:23px;margin:8px auto 15px;max-width:440px}.login-course{padding:8px 4px 0}.login-course .overline{margin-bottom:13px}.login-course h1{font-size:25px}.course-code{margin-bottom:18px}.course-school{margin-bottom:17px;font-size:13px}.course-contact{display:flex;gap:16px;flex-wrap:wrap}.course-contact p{font-size:12px;margin-bottom:0}.course-contact a{font-size:11px}.login-layout .sign-in-panel{padding:24px 20px}.login-layout .section-heading h2{font-size:22px}.course-brand{font-size:14px;min-width:0;flex-shrink:1}.course-brand>span:last-child{overflow-wrap:anywhere}.course-subtitle{font-size:10px}.date-time-control input{font-size:16px}.password-toggle{min-height:36px}.theme-toggle{width:38px;min-width:38px;height:38px}.course-header:has(.header-controls>.theme-toggle:only-child){flex-wrap:nowrap;gap:8px}}
.datetime-picker{width:min(380px,calc(100% - 24px));padding:20px;max-height:92dvh}.datetime-picker h2{margin-bottom:2px}.datetime-picker .calendar-zone{margin:0 0 16px}.calendar-month{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:12px 0}.calendar-month strong{font-size:15px}.calendar-days{table-layout:fixed;width:100%;border-collapse:collapse}.calendar-days th{font-size:11px;font-weight:500;color:var(--muted);padding:7px 0}.calendar-days td{text-align:center;padding:2px}.calendar-days button{border:1px solid transparent;width:100%;min-height:38px;border-radius:5px;background:transparent;color:var(--ink);padding:5px;font-size:13px}.calendar-days button:hover{background:var(--soft)}.calendar-days button[aria-current="date"]{border-color:var(--accent)}.calendar-days button[aria-pressed="true"]{background:#2563eb;color:#fff;border-color:#2563eb;font-weight:650}.calendar-time{display:flex;align-items:center;gap:8px;margin-top:16px}.calendar-time>span:first-child{margin-right:auto;font-size:12px}.calendar-time select{background:var(--surface);color:var(--ink);border:1px solid var(--input-border);border-radius:5px;min-height:40px;padding:5px;font-size:16px}.calendar-actions{display:flex;flex-wrap:wrap;gap:7px;justify-content:flex-end;margin-top:20px}.calendar-actions .btn{min-height:40px}.datetime-picker #calendar-selected{font-variant-numeric:tabular-nums;font-size:11px}.date-time-control input{cursor:pointer}@media(max-width:360px){.datetime-picker{padding:15px}.calendar-days td{padding:1px}.calendar-days button{min-height:34px}.calendar-actions{gap:5px}.calendar-actions .btn{padding:7px}}

.qr{width:144px;height:144px;padding:8px;background:#fff}
.account-filters{display:grid;grid-template-columns:minmax(0,1fr) minmax(140px,220px);gap:16px;margin-top:18px}.account-table{width:100%;min-width:0;table-layout:auto}.account-table th,.account-table td{text-align:left;white-space:normal;overflow-wrap:anywhere}.account-table th:last-child{width:350px}.account-password-status{display:block;font-size:10px;margin-top:4px}.account-table .button-row{flex-wrap:wrap}.account-table .btn{min-height:36px}.account-filters .field{margin:0 0 14px}
@media(max-width:900px){.account-table,.account-table tbody{display:block}.account-table thead{display:none}.account-table tr{display:grid;grid-template-columns:1fr 1fr;gap:14px;border-bottom:1px solid var(--line);padding:16px 0}.account-table td{display:block;border:0;padding:0;min-width:0}.account-table td:before{content:attr(data-label);display:block;color:var(--muted);font-size:10px;margin-bottom:5px}.account-table td:first-child,.account-table td:last-child{grid-column:1/-1}.account-table .button-row{gap:7px}.account-table .btn{min-height:40px}}@media(max-width:450px){.account-filters{grid-template-columns:1fr;gap:0}}

#grade-form [data-direct-score][hidden]{display:none}
#grade-form input[readonly],#grade-form textarea[readonly]{background:var(--soft);color:var(--muted);cursor:default}

.steps{gap:10px;align-items:stretch}.question-group{min-width:0;margin:0;padding:6px 10px 10px;border:1px dashed var(--line);border-radius:7px}.question-group legend{padding:0 5px;color:var(--muted);font-size:12px;font-weight:500}.question-group-steps{display:flex;gap:7px}.question-group .step{width:40px;height:40px;font-size:13px}.question-label{font-size:20px;font-weight:650;line-height:1.4;color:var(--ink)}
@media(max-width:600px){.question-label{font-size:18px}.question-group{padding:5px 9px 9px}.question-group-steps{gap:6px}.steps{gap:9px}}

@media(max-width:650px){.header-controls .assignment-control{flex-basis:100%;order:2;margin-right:0}}