:root{--color-bg:#f4f6f8;--color-surface:#fff;--color-border:#d5dbe1;--color-text:#1c2733;--color-text-muted:#5b6b7a;--color-primary:#0f4c81;--color-primary-dark:#0a3760;--color-primary-light:#e7f0f9;--color-accent:#1673c6;--color-answered:#2f7d3c;--color-answered-bg:#e5f4e8;--color-flagged:#b8860b;--color-flagged-bg:#fdf3dd;--color-unanswered-bg:#eef1f4;--color-danger:#c0342c;--color-danger-bg:#fbeae9;--color-pass:#1c7c3f;--color-fail:#c0342c;--font-sans:"Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;margin:0}button{font-family:inherit}.app-shell{flex-direction:column;min-height:100vh;display:flex}.btn{cursor:pointer;border:1px solid #0000;border-radius:4px;justify-content:center;align-items:center;gap:6px;padding:10px 20px;font-size:14px;font-weight:600;transition:background-color .15s,border-color .15s,opacity .15s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-secondary{color:var(--color-primary);border-color:var(--color-primary);background:#fff}.btn-secondary:hover:not(:disabled){background:var(--color-primary-light)}.btn-outline{color:var(--color-text-muted);border-color:var(--color-border);background:0 0}.btn-outline:hover:not(:disabled){background:var(--color-unanswered-bg)}.btn-flag{color:var(--color-flagged);border-color:var(--color-flagged);background:#fff}.btn-flag.active{background:var(--color-flagged-bg)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:#9e2a24}.landing-page{flex:1;justify-content:center;align-items:center;padding:32px 16px;display:flex}.landing-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;width:100%;max-width:620px;position:relative;overflow:hidden;box-shadow:0 2px 10px #0f4c810f}.auth-close-btn{color:#fff;cursor:pointer;z-index:1;background:0 0;border:none;font-size:24px;line-height:1;position:absolute;top:12px;right:16px}.landing-header{background:var(--color-primary);color:#fff;padding:24px 32px}.landing-header h1{margin:0 0 4px;font-size:22px}.landing-header p{opacity:.85;margin:0;font-size:13px}.landing-form{flex-direction:column;gap:18px;padding:28px 32px 32px;display:flex}.form-row{flex-direction:column;gap:6px;display:flex}.form-row label{color:var(--color-text);font-size:13px;font-weight:600}.form-row .hint{color:var(--color-text-muted);font-size:12px;font-weight:400}.form-row input[type=text],.form-row input[type=number],.form-row select{border:1px solid var(--color-border);background:#fff;border-radius:4px;padding:10px 12px;font-size:14px}.form-row input:focus,.form-row select:focus{outline:2px solid var(--color-accent);outline-offset:1px}.databank-manager{border:1px solid var(--color-border);border-radius:6px;margin-bottom:4px;padding:12px 16px}.databank-manager summary{cursor:pointer;font-size:14px;font-weight:600}.databank-manager-body{flex-direction:column;gap:10px;margin-top:12px;display:flex}.databank-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.databank-list li{align-items:center;gap:10px;font-size:13px;display:flex}.databank-list-name{flex:1;font-weight:600}.databank-list-meta{color:var(--color-text-muted)}.databank-new-row{align-items:center;gap:8px;display:flex}.databank-new-row input[type=text]{border:1px solid var(--color-border);border-radius:4px;flex:1;padding:8px 10px;font-size:13px}.btn-sm{padding:5px 12px;font-size:12.5px}.form-grid-2{grid-template-columns:1fr 1fr;gap:18px;display:grid}.file-drop{border:2px dashed var(--color-border);text-align:center;cursor:pointer;background:var(--color-bg);border-radius:6px;padding:18px}.file-drop:hover{border-color:var(--color-accent)}.file-drop input{display:none}.file-status-success{color:var(--color-answered);font-size:13px;font-weight:600}.file-status-error{color:var(--color-danger);margin-top:6px;font-size:13px;font-weight:600}.field-error{color:var(--color-danger);font-size:12px}.landing-actions{justify-content:flex-end;margin-top:6px;display:flex}.auth-banner{border-radius:6px;padding:10px 14px;font-size:13px;font-weight:600}.auth-banner.error{background:var(--color-danger-bg);color:var(--color-danger)}.auth-banner.success{background:var(--color-answered-bg);color:var(--color-answered)}.auth-switch{text-align:center;color:var(--color-text-muted);margin:4px 0 0;font-size:13px}.auth-switch button{color:var(--color-accent);cursor:pointer;background:0 0;border:none;padding:0;font-size:13px;font-weight:600}.auth-forgot-link{color:var(--color-accent);cursor:pointer;background:0 0;border:none;align-self:flex-end;padding:0;font-size:12.5px;font-weight:600}.auth-state-page{flex:1;justify-content:center;align-items:center;padding:32px 16px;display:flex}.auth-state-card{background:var(--color-surface);border:1px solid var(--color-border);text-align:center;border-radius:8px;width:100%;max-width:420px;padding:32px}.auth-state-card .auth-state-icon{margin-bottom:12px;font-size:34px}.auth-state-card h2{margin:0 0 8px}.auth-state-card p{color:var(--color-text-muted);margin:0 0 20px;font-size:14px;line-height:1.5}.auth-state-card .signed-in-as{background:var(--color-bg);border:1px solid var(--color-border);text-align:left;border-radius:6px;margin-bottom:18px;padding:10px 14px;font-size:13px}.auth-state-card .signed-in-as 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8px;font-size:11px;font-weight:700;display:inline-block}.options-list{flex-direction:column;gap:10px;display:flex}.option-item{border:1px solid var(--color-border);cursor:pointer;border-radius:6px;align-items:flex-start;gap:12px;padding:14px 16px;transition:border-color .15s,background-color .15s;display:flex}.option-item:hover,.option-item.selected{border-color:var(--color-accent);background:var(--color-primary-light)}.option-item input{width:17px;height:17px;accent-color:var(--color-accent);flex-shrink:0;margin-top:3px}.option-label{color:var(--color-primary);min-width:18px;font-weight:700}.option-text{font-size:14.5px;line-height:1.5}.exam-toolbar{background:var(--color-surface);border-top:1px solid var(--color-border);z-index:10;justify-content:space-between;align-items:center;gap:12px;padding:12px 24px;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 8px #0000000f}.toolbar-group{align-items:center;gap:10px;display:flex}.item-navigator{background:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;margin-top:20px;padding:16px 18px}.item-navigator h3{text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-muted);margin:0 0 12px;font-size:13px}.navigator-grid{grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:8px;display:grid}.nav-item-btn{border:1px solid var(--color-border);background:var(--color-unanswered-bg);height:36px;color:var(--color-text);cursor:pointer;border-radius:4px;font-size:12.5px;font-weight:600;position:relative}.nav-item-btn.answered{background:var(--color-answered-bg);border-color:var(--color-answered);color:var(--color-answered)}.nav-item-btn.flagged:after{content:"";background:var(--color-flagged);border:1.5px solid #fff;border-radius:50%;width:10px;height:10px;position:absolute;top:-3px;right:-3px}.nav-item-btn.current{outline:2px solid var(--color-accent);outline-offset:1px}.navigator-legend{color:var(--color-text-muted);flex-wrap:wrap;gap:16px;margin-top:14px;font-size:12px;display:flex}.legend-swatch{vertical-align:-1px;border-radius:3px;width:12px;height:12px;margin-right:5px;display:inline-block}.review-page{flex:1;width:100%;max-width:900px;margin:0 auto;padding:24px 20px 100px}.review-page h2{margin:0 0 4px}.review-summary-bar{flex-wrap:wrap;gap:20px;margin:16px 0 20px;display:flex}.summary-stat{background:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;min-width:120px;padding:12px 18px}.summary-stat .stat-value{font-size:22px;font-weight:700}.summary-stat .stat-label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.4px;font-size:12px}.review-table{border-collapse:collapse;background:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;width:100%;overflow:hidden}.review-table th,.review-table td{text-align:left;border-bottom:1px solid var(--color-border);padding:10px 14px;font-size:13.5px}.review-table th{background:var(--color-bg);text-transform:uppercase;letter-spacing:.4px;color:var(--color-text-muted);font-size:11.5px}.review-table tr:last-child td{border-bottom:none}.review-table tr.clickable{cursor:pointer}.review-table tr.clickable:hover{background:var(--color-primary-light)}.status-pill{border-radius:12px;padding:3px 9px;font-size:11.5px;font-weight:700;display:inline-block}.status-pill.answered{background:var(--color-answered-bg);color:var(--color-answered)}.status-pill.unanswered{background:var(--color-unanswered-bg);color:var(--color-text-muted)}.status-pill.flagged{background:var(--color-flagged-bg);color:var(--color-flagged);margin-left:6px}.review-actions{justify-content:flex-end;gap:12px;margin-top:24px;display:flex}.results-page{flex:1;width:100%;max-width:900px;margin:0 auto;padding:32px 20px 60px}.result-banner{color:#fff;border-radius:8px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;padding:28px 32px;display:flex}.result-banner.pass{background:linear-gradient(135deg,#1c7c3f,#22994c)}.result-banner.fail{background:linear-gradient(135deg,#c0342c,#d94339)}.result-banner .result-verdict{letter-spacing:1px;font-size:40px;font-weight:800}.result-banner .result-score{font-size:20px;font-weight:600}.results-meta-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:28px;display:grid}.meta-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;padding:14px 16px}.meta-card .meta-label{text-transform:uppercase;color:var(--color-text-muted);letter-spacing:.4px;margin-bottom:4px;font-size:11.5px}.meta-card .meta-value{font-size:16px;font-weight:700}.results-actions{gap:12px;margin-bottom:28px;display:flex}.answer-review-list{flex-direction:column;gap:14px;display:flex}.answer-review-item{background:var(--color-surface);border:1px solid var(--color-border);border-left:4px solid var(--color-border);border-radius:6px;padding:16px 20px}.answer-review-item.correct{border-left-color:var(--color-answered)}.answer-review-item.incorrect{border-left-color:var(--color-danger)}.answer-review-item .review-item-head{justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:8px;display:flex}.answer-review-item .review-item-question{white-space:pre-wrap;font-size:14.5px;font-weight:600}.answer-review-item .review-item-options{flex-direction:column;gap:4px;margin-top:8px;font-size:13.5px;display:flex}.opt-line{border-radius:4px;padding:4px 8px}.opt-line.chosen-correct{background:var(--color-answered-bg);color:var(--color-answered);font-weight:600}.opt-line.chosen-incorrect{background:var(--color-danger-bg);color:var(--color-danger);font-weight:600}.opt-line.missed-correct{background:var(--color-primary-light);color:var(--color-primary);font-weight:600}.modal-overlay{z-index:100;background:#0f192380;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-card{background:var(--color-surface);border-radius:8px;width:100%;max-width:420px;padding:24px 28px;box-shadow:0 10px 40px #00000040}.modal-card h3{margin:0 0 10px;font-size:17px}.modal-card p{color:var(--color-text-muted);margin:0 0 20px;font-size:14px;line-height:1.5}.modal-actions{justify-content:flex-end;gap:10px;display:flex}@media (width<=640px){.form-grid-2{grid-template-columns:1fr}.exam-header{flex-wrap:wrap}.exam-body{padding-bottom:180px}.exam-toolbar{flex-wrap:wrap}}