:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f4f6f8;--card:#fff;--line:#d9e0e7;--text:#1f2937;--muted:#667085;--brand:#2563eb;--ok:#15803d;--bad:#b42318;--warn:#b45309;--touch-min:44px}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;scrollbar-gutter:stable}@supports not (scrollbar-gutter:stable){html{overflow-y:scroll}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);padding-bottom:max(24px, env(safe-area-inset-bottom,0px));padding-left:max(20px, env(safe-area-inset-left,0px));padding-right:max(20px, env(safe-area-inset-right,0px));padding-top:max(20px, env(safe-area-inset-top,0px));margin:0;font-family:Segoe UI,Microsoft JhengHei,sans-serif;overflow-x:clip}a{color:var(--brand);text-decoration:none}h2,h3{margin:0}button,select,input[type=number],input[type=text]{border:1px solid var(--line);font:inherit;touch-action:manipulation;background:#fff;border-radius:10px;padding:9px 12px}button{min-height:var(--touch-min)}button:disabled{cursor:not-allowed;opacity:.55}button:hover:not(:disabled){filter:brightness(.98)}button.primary{background:var(--brand);border-color:var(--brand);color:#fff}button.danger{color:var(--bad);background:#fef2f2;border-color:#fecaca}button.danger:hover:not(:disabled){background:#fee2e2}select{min-height:var(--touch-min)}input[type=radio]{accent-color:var(--brand);height:1.15rem;min-height:unset;width:1.15rem;margin-right:10px}.button-link{background:var(--brand);border:1px solid var(--brand);color:#fff;min-height:var(--touch-min);touch-action:manipulation;border-radius:10px;justify-content:center;align-items:center;padding:9px 12px;display:inline-flex}.wrap{max-width:1120px;margin:auto}.app-nav{background:var(--card);border:1px solid var(--line);border-radius:14px;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px;padding:12px 16px;display:flex;box-shadow:0 4px 14px #0f172a0d}.app-nav-brand{font-size:17px;font-weight:700}.app-nav-links{flex-wrap:wrap;flex:1;justify-content:flex-end;gap:8px;display:flex}.nav-link{color:var(--text);border-radius:10px;justify-content:center;align-items:center;padding:8px 14px;font-weight:500;display:inline-flex}.nav-link:hover{background:#f1f5f9}.nav-link-active{background:var(--brand);color:#fff}.nav-link-active:hover{background:var(--brand);filter:brightness(1.05)}.app-nav,.nav-group{position:relative}button.nav-group-btn{cursor:pointer;background:0 0;border:none;gap:6px;min-height:0}button.nav-group-btn.nav-link-active{background:var(--brand);color:#fff}button.nav-group-btn:hover:not(:disabled){filter:none}button.nav-group-btn.nav-link-active:hover{filter:brightness(1.05)}.nav-caret{opacity:.7;border-top:5px solid;border-left:4px solid #0000;border-right:4px solid #0000;width:0;height:0;transition:transform .15s;display:inline-block}.nav-group-open .nav-caret{transform:rotate(180deg)}.nav-dropdown{background:var(--card);border:1px solid var(--line);z-index:200;border-radius:12px;flex-direction:column;gap:2px;min-width:168px;padding:6px;display:flex;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 10px 26px #0f172a24}.nav-dropdown-link{color:var(--text);white-space:nowrap;border-radius:8px;padding:9px 12px;font-weight:500;display:block}.nav-dropdown-link:hover{background:#f1f5f9}.nav-dropdown-link-active{background:var(--brand);color:#fff}.nav-dropdown-link-active:hover{background:var(--brand);filter:brightness(1.05)}.app-nav-user{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.app-nav-username{color:var(--muted);font-size:14px}button.nav-logout{border-color:var(--line);color:var(--text);background:0 0;min-height:40px;padding:8px 14px;font-size:14px}.visually-hidden{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.login-page{box-sizing:border-box;max-width:440px;min-height:min(100dvh - 40px,720px);padding-bottom:max(20px, env(safe-area-inset-bottom,0px));padding-top:max(12px, env(safe-area-inset-top,0px));flex-direction:column;justify-content:center;width:100%;margin-left:auto;margin-right:auto;display:flex}.login-page-inner{flex-direction:column;gap:18px;width:100%;display:flex}.login-hero{text-align:center;padding:0 2px}.login-brand{color:var(--brand);letter-spacing:.04em;text-transform:uppercase;margin:0 0 6px;font-size:13px;font-weight:700}.login-heading{letter-spacing:-.02em;margin:0 0 10px;font-size:clamp(1.5rem,5vw,1.75rem);font-weight:700;line-height:1.2}.login-hint{color:var(--muted);margin:0;font-size:15px;line-height:1.45}.login-form{flex-direction:column;gap:18px;display:flex}.login-form .field-label{flex-direction:column;gap:8px;display:flex}.login-form .field-label-text{font-size:14px;font-weight:600}.login-card select,.login-password-input{appearance:none;min-height:var(--touch-min);touch-action:manipulation;width:100%;font-size:16px;line-height:1.35}.login-card select{cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23667085' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat;padding-right:42px}.login-password-wrap{align-items:stretch;gap:8px;display:flex}.login-password-input{flex:1;min-width:0}.login-password-toggle{border:1px solid var(--line);color:var(--text);min-height:var(--touch-min);touch-action:manipulation;background:#f8fafc;border-radius:10px;flex:none;min-width:64px;padding:0 14px;font-size:15px;font-weight:600}.login-password-toggle:hover:not(:disabled){background:#f1f5f9}.login-password-toggle:disabled{opacity:.55}.login-error{color:var(--bad);background:#fef3f2;border:1px solid #fecdca;border-radius:10px;margin:0;padding:10px 12px;font-size:14px;line-height:1.4}.login-submit{min-height:calc(var(--touch-min) + 2px);width:100%;margin-top:2px;font-size:17px;font-weight:600}.page-links{margin:0}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-top:16px;padding:18px;box-shadow:0 8px 24px #0f172a0f}.card.login-card{max-width:none;margin-top:0;padding:clamp(18px,4vw,22px)}.toolbar,.section-head,.quiz-actions,.summary,.filters{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.section-head{justify-content:space-between}.section-body{margin-top:12px}.question-card{overflow-wrap:anywhere;word-break:break-word;font-size:17px;line-height:1.6}.question-title{flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:6px;font-weight:700;display:flex}.choice{min-height:var(--touch-min);touch-action:manipulation;border-radius:10px;align-items:flex-start;gap:4px;margin:8px 0;padding:10px 12px;display:flex}.choice:has(input:checked){background:#eff6ff;border:1px solid #bfdbfe}#timer{color:#b00;margin-left:auto;font-size:24px;font-weight:700}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:12px 0;display:grid}.stat-card{border:1px solid var(--line);background:#f8fafc;border-radius:12px;padding:12px}.stat-card strong{margin-top:4px;font-size:24px;display:block}.grade-trend-section{border-top:1px solid var(--line);margin-top:20px;padding-top:16px}.grade-trend-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:10px;display:flex}.grade-trend-title{margin:0 0 6px;font-size:1.05rem}.grade-trend-note{margin:0}.grade-trend-summary{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin:14px 0;display:grid}.grade-trend-chart-wrap{border:1px solid var(--line);background:#f8fafc;border-radius:12px;padding:12px;overflow-x:auto}.grade-trend-chart{width:100%;min-width:560px;display:block}.grade-trend-gridline{stroke:#d9e0e7;stroke-width:1px}.grade-trend-axis-label,.grade-trend-x-label{fill:var(--muted);font-size:12px}.grade-trend-axis-label{text-anchor:end}.grade-trend-x-label{text-anchor:middle}.grade-trend-line{fill:none;stroke:var(--brand);stroke-linecap:round;stroke-linejoin:round;stroke-width:3px}.grade-trend-dot{fill:#fff;stroke:var(--brand);stroke-width:3px}.grade-trend-pass-line{fill:none;stroke:var(--warn);stroke-dasharray:6 5;stroke-width:2px}.grade-trend-pass-axis{fill:var(--warn);font-weight:600}.grade-trend-pass-label{fill:var(--warn);text-anchor:end;font-size:12px;font-weight:600}.tag-pie-section{border-top:1px solid var(--line);margin-top:20px;padding-top:16px}.tag-pie-section-title{margin:0 0 6px;font-size:1.05rem}.tag-pie-note{margin:0 0 14px}.tag-pie-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;display:grid}.pie-card{border:1px solid var(--line);background:#f8fafc;border-radius:12px;padding:12px 14px}.pie-card-title{margin:0 0 10px;font-size:.95rem}.pie-card-body{flex-wrap:wrap;align-items:flex-start;gap:14px;display:flex}.pie-disk{aspect-ratio:1;border-radius:50%;flex-shrink:0;width:min(160px,42vw);box-shadow:inset 0 0 0 1px #0f172a0f}.pie-legend{flex:1;min-width:0;margin:0;padding:0;list-style:none}.pie-legend li{flex-wrap:wrap;align-items:baseline;gap:6px;margin:6px 0;font-size:14px;display:flex}.pie-swatch{border-radius:4px;flex-shrink:0;width:12px;height:12px;margin-top:3px}.pie-legend-label{overflow-wrap:anywhere;flex:1;min-width:0}.pie-legend-val{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}.pie-empty{margin:0;padding:12px;font-size:14px}.wrong-list{margin:8px 0 0;padding-left:18px}.wrong-list li{margin:6px 0}.wrong-solution-wrap{margin-top:8px}.solution-details{border:1px solid var(--line);background:#f8fafc;border-radius:10px;margin-top:10px;padding:8px 12px}.solution-summary{cursor:pointer;-webkit-user-select:none;user-select:none;font-weight:600;list-style:none}.solution-summary::-webkit-details-marker{display:none}.solution-body{color:#1e293b;margin-top:8px;font-size:15px;line-height:1.55}.solution-body p{margin:0 0 8px}.solution-body p:last-child{margin-bottom:0}.question-answer-stats{margin-bottom:10px}.history-attempt{border:1px solid var(--line);background:#fff;border-radius:14px;margin:12px 0;overflow:hidden}.attempt-head{cursor:pointer;text-align:left;background:#fff;border:0;border-radius:0;width:100%;padding:14px}.attempt-head:hover{background:#f8fafc}.attempt-body{border-top:1px solid var(--line);padding:14px}.empty-state{border:1px dashed var(--line);color:var(--muted);text-align:center;background:#f8fafc;border-radius:12px;padding:18px}.meta{color:var(--muted);font-size:14px}.pill{color:#3730a3;background:#eef2ff;border-radius:999px;padding:4px 10px;font-size:13px;display:inline-block}.pill.correct{color:var(--ok);background:#dcfce7}.pill.wrong{color:var(--bad);background:#fee2e2}.pill.unanswered{color:var(--warn);background:#fef3c7}.pill.tag{color:#0e7490;background:#ecfeff;font-weight:600}.tag-filter-row{flex-wrap:wrap;align-items:center;gap:10px;margin-top:14px;display:flex}.tag-filter-label{color:var(--muted);font-size:14px;font-weight:600}.tag-filter-select{max-width:min(100%,420px);min-height:var(--touch-min);min-width:200px}.tag-filter-hint{color:var(--muted);font-size:13px;line-height:1.4}.filter-btn{border:1px solid var(--line);font:inherit;min-height:var(--touch-min);touch-action:manipulation;background:#fff;border-radius:10px;padding:8px 14px}.filter-btn.active{color:#fff;background:#111827}.export-wrong-csv-btn{margin-left:auto}.result-row{border:1px solid var(--line);background:#fff;border-radius:12px;margin:10px 0;padding:12px}.result-row.correct{border-left:5px solid var(--ok)}.result-row.wrong{border-left:5px solid var(--bad)}.result-row.unanswered{border-left:5px solid var(--warn)}.oral-question{border-top:1px solid var(--line);margin-top:14px;padding-top:14px}.oral-blank{gap:6px;margin-top:10px;display:grid}.oral-blank-label{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;font-weight:600;display:flex}.oral-question-note{margin:8px 0 4px}.oral-blank-na{opacity:.92}.oral-field-tag{background:var(--line);color:var(--muted);border-radius:6px;padding:2px 8px;font-size:12px;font-weight:500}.oral-field-tag-info{background:color-mix(in srgb, var(--accent) 12%, transparent);color:var(--accent)}.oral-na-hint{color:var(--muted);background:color-mix(in srgb, var(--line) 55%, transparent);border-left:3px solid var(--muted);border-radius:8px;margin:0;padding:8px 10px;font-size:14px}.oral-result-answer{white-space:pre-wrap;gap:2px;display:grid}.oral-result-answer strong{color:var(--text);font-weight:600}.oral-question+.quiz-actions{border-top:1px solid var(--line);margin-top:18px;padding-top:16px}.oral-explanation{background:color-mix(in srgb, var(--line) 40%, transparent);border-radius:12px;margin-top:10px;padding:12px}.oral-explanation p{white-space:pre-wrap;margin:6px 0 0}.quiz-submit-zone{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;margin-top:18px;padding-top:16px;display:flex}.options{margin:8px 0 0;padding-left:0;list-style:none}.options li{border-radius:8px;min-height:36px;margin:3px 0;padding:8px 10px}.options .chosen{background:#fff7ed}.options .right{background:#ecfdf3}.history-box{background:#f7f7f7;margin-top:16px;padding:10px}.history-picker{flex-wrap:wrap;align-items:flex-end;gap:12px;margin-bottom:16px;display:flex}.history-picker-label{flex-direction:column;flex:220px;gap:6px;font-weight:600;display:flex}.history-picker-label select{width:100%;max-width:100%}.history-stepper{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.history-stepper-pos{text-align:center;min-width:4.5rem}.history-detail-single{margin-top:8px}.error{color:var(--bad)}@media (width<=760px){body{padding-bottom:max(16px, env(safe-area-inset-bottom,0px));padding-left:max(12px, env(safe-area-inset-left,0px));padding-right:max(12px, env(safe-area-inset-right,0px));padding-top:max(12px, env(safe-area-inset-top,0px))}.card{padding:14px}.app-nav{top:env(safe-area-inset-top,0px);z-index:100;flex-direction:column;align-items:stretch;gap:10px;padding:10px 12px;position:sticky}.app-nav-links{flex-wrap:wrap;justify-content:flex-start;gap:6px;padding-bottom:0;overflow:visible}.nav-link{min-height:var(--touch-min);white-space:nowrap;border:1px solid #0000;flex:0 auto;justify-content:center;padding:10px 14px}.nav-link-active{border-color:#2563eb59}.nav-group{position:static}.nav-dropdown{top:calc(100% + 4px);left:8px;right:8px}.nav-dropdown-link{min-height:var(--touch-min);align-items:center;display:flex}.login-page{max-width:100%;min-height:calc(100dvh - max(28px, env(safe-area-inset-top,0px) + env(safe-area-inset-bottom,0px)));padding-bottom:max(12px, env(safe-area-inset-bottom,0px))}.login-page-inner{gap:16px}.card.login-card{border-radius:16px;padding:16px}.page-links{font-size:15px;line-height:1.5}.toolbar,.section-head{flex-direction:column;align-items:stretch}.section-head .toolbar{flex-direction:column}.toolbar h2{font-size:1.15rem}.quiz-actions{grid-template-columns:1fr 1fr;gap:10px;width:100%;display:grid}.quiz-submit-zone{flex-direction:column;align-items:stretch;gap:10px}.quiz-submit-zone button{width:100%}#timer{text-align:center;width:100%;margin-left:0;font-size:22px}.question-card{font-size:16px}input[type=number],select{width:100%;max-width:100%;font-size:16px}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stat-card strong{font-size:20px}.attempt-head{min-height:var(--touch-min);padding:16px 14px}.filters{gap:8px}.export-wrong-csv-btn{width:100%;margin-left:0}.history-picker{flex-direction:column;align-items:stretch}.history-stepper{justify-content:space-between}.result-row{padding:14px}}@media (hover:none) and (pointer:coarse){button:active:not(:disabled),.filter-btn:active{filter:brightness(.94)}.nav-link:active{background:#e2e8f0}.nav-link-active:active{filter:brightness(.95)}.attempt-head:active{background:#f1f5f9}}.emrg-wrap{margin-top:16px}.emrg-header{justify-content:space-between;align-items:center;gap:16px;display:flex}.emrg-subtitle{color:var(--muted);margin:6px 0 0}.emrg-header-actions{flex-direction:column;align-items:center;gap:10px;display:flex}.emrg-overall{border:1px solid var(--line);background:#f8fafc;border-radius:12px;flex-direction:column;align-items:center;min-width:96px;padding:10px 16px;display:flex}.emrg-overall-num{color:var(--ok);font-size:24px;font-weight:800}.emrg-overall-label{color:var(--muted);font-size:13px}.emrg-body{grid-template-columns:300px minmax(0,1fr);align-items:start;gap:16px;margin-top:16px;display:grid}.emrg-list{flex-direction:column;gap:8px;margin-top:0;padding:12px;display:flex;position:sticky;top:12px}.emrg-list-item{border:1px solid var(--line);cursor:pointer;min-height:var(--touch-min);text-align:left;background:#fff;border-radius:10px;align-items:center;gap:10px;width:100%;padding:8px 10px;display:flex}.emrg-list-item-active{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand) inset}.emrg-list-index{color:var(--brand);text-align:center;background:#eef2ff;border-radius:8px;flex:none;width:26px;height:26px;font-weight:700;line-height:26px}.emrg-list-title{flex:1;font-size:14px;font-weight:600;line-height:1.3}.emrg-badge{color:var(--muted);text-align:center;background:#f1f5f9;border-radius:999px;flex:none;min-width:40px;padding:3px 8px;font-size:12px;font-weight:700}.emrg-badge-ok{color:var(--ok);background:#dcfce7}.emrg-main{min-width:0}.emrg-modes{flex-wrap:wrap;gap:8px;display:flex}.emrg-mode{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:999px;padding:8px 16px;font-weight:600}.emrg-mode-active{background:var(--brand);border-color:var(--brand);color:#fff}.emrg-panel{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-top:14px;padding:18px;box-shadow:0 8px 24px #0f172a0f}.emrg-panel-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.emrg-hint{color:var(--muted);font-size:14px}.emrg-toggle{cursor:pointer;white-space:nowrap;align-items:center;gap:8px;font-weight:600;display:inline-flex}.emrg-toggle input{width:1.1rem;height:1.1rem}.emrg-card-title{color:#111;letter-spacing:.3px;text-align:center;border-radius:8px;flex-wrap:wrap;justify-content:center;gap:10px;padding:8px 14px;font-size:18px;font-weight:800;display:flex}.emrg-card-title small{color:#fff;background:#000;border-radius:4px;padding:2px 8px;font-size:12px}.emrg-checklist{flex-direction:column;gap:4px;display:flex}.emrg-checklist>*{margin-top:6px}.emrg-step{align-items:baseline;gap:8px;line-height:1.5;display:flex}.emrg-step-n{color:var(--muted);font-variant-numeric:tabular-nums;text-align:right;flex:none;min-width:18px;font-weight:700}.emrg-step-item{flex:none;font-weight:600}.emrg-step-bullet .emrg-step-item{font-weight:500}.emrg-step-dots{border-bottom:2px dotted #cbd5e1;flex:1;min-width:16px;transform:translateY(-3px)}.emrg-step-action{text-transform:uppercase;flex:none;font-weight:700}.emrg-step-hidden{color:#92660b;cursor:pointer;min-height:unset;background:#fef9c3;border:1px dashed #d4b106;border-radius:8px;flex:none;padding:2px 10px;font-size:13px}.emrg-note{color:#374151;padding-left:26px}.emrg-note-emphasis{text-align:center;padding-left:0;font-weight:700}.emrg-note-boxed{border:1.5px solid #334155;border-radius:6px;padding:4px 10px;font-weight:600;display:inline-block}.emrg-table-wrap{margin:6px 0;overflow-x:auto}.emrg-table-title{text-align:center;margin-bottom:4px;font-weight:700}.emrg-table{border-collapse:collapse;width:100%}.emrg-table th,.emrg-table td{border:1px solid var(--line);text-align:center;padding:4px 8px;font-size:14px}.emrg-table th{background:#f8fafc}.emrg-fill-list{flex-direction:column;gap:10px;margin:12px 0;display:flex}.emrg-fill-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.emrg-fill-item{flex:none;min-width:180px;font-weight:600}.emrg-step-instruction{font-weight:500}.emrg-fill-tag{color:var(--brand);background:#eef2ff;border-radius:6px;flex:none;padding:3px 8px;font-size:12px;font-weight:700}.emrg-override{color:var(--warn);cursor:pointer;min-height:unset;background:#fff7ed;border:1px solid #fed7aa;border-radius:8px;flex:none;padding:3px 10px;font-size:13px}.emrg-override:hover{background:#ffedd5}.emrg-fill-table-wrap{overflow-x:auto}.emrg-fill-input-cell{text-align:center;width:72px;min-width:60px;padding:6px}.emrg-table td.bad{background:#fef2f2}.emrg-cell-answer{color:var(--ok);margin-top:2px;font-size:12px;font-weight:700;display:block}.emrg-fill-input{flex:1;min-width:160px}.emrg-fill-input.ok{border-color:var(--ok);color:var(--ok);background:#f0fdf4}.emrg-fill-input.bad{border-color:var(--bad);color:var(--bad);background:#fef2f2}.emrg-fill-answer{color:var(--ok);font-weight:700}.emrg-actions{flex-wrap:wrap;align-items:center;gap:12px;margin-top:12px;display:flex}.emrg-score{font-weight:700}.emrg-score-ok{color:var(--ok)}.emrg-order-pool{flex-wrap:wrap;gap:8px;min-height:44px;margin:12px 0;display:flex}.emrg-chip{color:#1e40af;cursor:pointer;min-height:unset;background:#eff6ff;border:1px solid #bfdbfe;border-radius:999px;padding:6px 14px;font-weight:600}.emrg-order-seq{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.emrg-order-slot{border:1px solid var(--line);background:#f8fafc;border-radius:10px;flex-wrap:wrap;align-items:center;gap:10px;padding:8px 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0}.presolo-review-card{gap:10px;display:grid}.presolo-review-options{gap:6px;display:grid}.presolo-review-option{border-radius:8px;flex-wrap:wrap;align-items:center;gap:8px;min-height:36px;padding:8px 10px;display:flex}.presolo-review-option.right{background:#ecfdf3}.presolo-review-tag{margin-left:auto}