:root{--bg-main: #0b0f19;--bg-card: #151d30;--bg-card-hover: #1e2942;--border-color: #24324f;--bg-questions-pane: #0f1624;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--accent-primary: #6366f1;--accent-primary-hover: #4f46e5;--accent-primary-glow: rgba(99, 102, 241, .15);--accent-success: #10b981;--accent-success-hover: #059669;--accent-success-glow: rgba(16, 185, 129, .15);--accent-danger: #ef4444;--accent-danger-hover: #dc2626;--accent-danger-glow: rgba(239, 68, 68, .15);--accent-warning: #f59e0b;--header-height: 72px;--font-heading: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .3), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-accent: 0 0 20px 0 rgba(99, 102, 241, .3)}.light-theme{--bg-main: #f8fafc;--bg-card: #ffffff;--bg-card-hover: #f1f5f9;--border-color: #e2e8f0;--bg-questions-pane: #f1f5f9;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--accent-primary: #4f46e5;--accent-primary-hover: #3730a3;--accent-primary-glow: rgba(79, 70, 229, .08);--accent-success: #059669;--accent-success-hover: #047857;--accent-success-glow: rgba(5, 150, 105, .08);--accent-danger: #dc2626;--accent-danger-hover: #b91c1c;--accent-danger-glow: rgba(220, 38, 38, .08);--accent-warning: #d97706}.light-theme .home-header h1{background:linear-gradient(135deg,var(--text-primary) 40%,var(--accent-primary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.light-theme .badge{background-color:#4f46e51f;color:#312e81;border-color:#4f46e559}.light-theme .passage-card{background-color:#fff;border-color:#cbd5e1}.light-theme .passage-card:hover{border-color:var(--accent-primary);box-shadow:0 4px 14px #4f46e51f}.light-theme .passage-card-num{color:#3730a3}.light-theme .test-tab-btn{border-color:#cbd5e1;background-color:var(--bg-card);color:var(--text-secondary)}.light-theme .test-tab-btn:hover{border-color:var(--text-muted);color:var(--text-primary)}.light-theme .test-tab-btn.active{background-color:#4f46e51a;border-color:var(--accent-primary);color:var(--accent-primary);box-shadow:0 4px 12px #4f46e526}.light-theme .header-passage-id{color:#3730a3}.light-theme .timer-display{background-color:#fff;border-color:#cbd5e1;color:var(--text-primary)}.light-theme .timer-display strong{color:#312e81}.light-theme .answer-grid-cell{background-color:#f1f5f9;border-color:#cbd5e1;color:#334155}.light-theme .answer-grid-cell:hover{background-color:#e2e8f0;border-color:var(--text-muted);color:var(--text-primary)}.light-theme .answer-grid-cell.answered{background-color:#4f46e51f;border-color:var(--accent-primary);color:var(--accent-primary)}.light-theme .tip-box{background-color:#fffbeb;border-color:#f59e0b;border-style:solid}.light-theme .tip-box p{color:#78350f}.light-theme .passage-pane{background-color:#fff}.light-theme .inline-blank-input,.light-theme .inline-select,.light-theme .standard-text-input,.light-theme .standard-select,.light-theme .matching-select{background-color:#fff;border-color:#cbd5e1;color:#0f172a}.light-theme .inline-blank-input:focus,.light-theme .inline-select:focus,.light-theme .standard-text-input:focus,.light-theme .standard-select:focus,.light-theme .matching-select:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px #4f46e526;background-color:#fff}.light-theme .mcq-option-card{background-color:#fff;border-color:#cbd5e1}.light-theme .mcq-option-card:hover{border-color:var(--text-muted);background-color:#f8fafc}.light-theme .mcq-option-card.selected{background-color:#4f46e514;border-color:var(--accent-primary)}.light-theme .mcq-option-circle{background-color:#f1f5f9;border-color:#cbd5e1;color:#475569}.light-theme .pill-option-btn{background-color:#fff;border-color:#cbd5e1;color:#475569}.light-theme .pill-option-btn:hover{background-color:#f8fafc;border-color:var(--text-muted)}.light-theme .pill-option-btn.selected{background-color:#4f46e514;border-color:var(--accent-primary);color:var(--accent-primary)}.light-theme .question-item{border-color:#cbd5e1;box-shadow:0 2px 4px #00000005}.light-theme .question-item:hover{border-color:var(--accent-primary)}.light-theme .full-exam-banner{background:linear-gradient(135deg,#4f46e514,#0596690a);border-color:#4f46e54d;box-shadow:0 4px 20px 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spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.home-container{max-width:1200px;margin:0 auto;padding:60px 24px;min-height:100vh;display:flex;flex-direction:column;justify-content:center}.home-header{text-align:center;margin-bottom:50px}.badge{display:inline-block;padding:6px 16px;background-color:var(--accent-primary-glow);color:var(--accent-primary);border:1px solid rgba(99,102,241,.3);border-radius:var(--radius-full);font-size:13px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;margin-bottom:16px}.home-header h1{font-size:42px;font-weight:800;margin-bottom:12px;letter-spacing:-.02em;background:linear-gradient(135deg,#fff 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var(--border-color);border-radius:var(--radius-md);font-weight:500}.test-tab-btn:hover{border-color:var(--text-muted)}.test-tab-btn.active{background-color:var(--accent-primary-glow);border-color:var(--accent-primary);color:var(--text-primary);box-shadow:0 0 12px #6366f133}.passages-section{border-top:1px solid var(--border-color);padding-top:32px}.passages-section .section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.count-badge{font-size:12px;padding:4px 10px;background-color:var(--border-color);border-radius:var(--radius-sm);color:var(--text-secondary)}.passages-grid{display:grid;grid-template-columns:1fr;gap:16px}.passage-card{display:flex;justify-content:space-between;align-items:center;padding:24px;background-color:var(--bg-main);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:all .25s ease}.passage-card:hover{transform:translateY(-2px);border-color:var(--accent-primary);box-shadow:0 4px 12px 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var(--border-color);overflow-y:auto;padding:40px;flex-shrink:0;box-sizing:border-box}.questions-list-wrapper{max-width:600px;margin:0 auto}.section-block{margin-bottom:40px;padding-bottom:30px;border-bottom:1px solid var(--border-color)}.section-block:last-child{border-bottom:none}.section-header-block{margin-bottom:24px}.section-header-block h3{font-size:18px;margin-bottom:8px;color:var(--accent-primary)}.section-instruction{font-size:13.5px;color:var(--text-secondary);font-style:italic;line-height:1.5}.question-item{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:20px;margin-bottom:16px;transition:border-color .2s ease,box-shadow .2s ease}.question-item:hover{border-color:#6366f166}.scrolled-highlight{border-color:var(--accent-primary)!important;box-shadow:0 0 0 2px 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var(--border-color);border-radius:var(--radius-md);font-size:13px;font-weight:600;color:var(--text-secondary)}.pill-option-btn:hover{border-color:var(--text-muted)}.pill-option-btn.selected{background-color:var(--accent-primary-glow);border-color:var(--accent-primary);color:var(--text-primary)}.mcq-options-list{display:flex;flex-direction:column;gap:8px}.mcq-option-card{display:flex;align-items:center;gap:12px;padding:12px 16px;background-color:var(--bg-main);border:1px solid var(--border-color);border-radius:var(--radius-md);text-align:left}.mcq-option-card:hover{border-color:var(--text-muted)}.mcq-option-circle{width:24px;height:24px;background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:50%;font-size:11px;font-weight:700;line-height:22px;text-align:center;color:var(--text-secondary);flex-shrink:0}.mcq-option-card.selected{background-color:var(--accent-primary-glow);border-color:var(--accent-primary)}.mcq-option-card.selected 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1fr;gap:24px;margin-bottom:40px}.stat-card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-lg)}.band-score-card{display:flex;flex-direction:column;align-items:center;text-align:center}.stat-card-label{font-size:12px;text-transform:uppercase;color:var(--text-secondary);font-weight:600;letter-spacing:.05em;margin-bottom:20px}.band-badge-circle{width:120px;height:120px;border-radius:50%;font-size:42px;font-family:var(--font-heading);font-weight:800;line-height:114px;text-align:center;margin-bottom:16px;box-shadow:var(--shadow-lg);border:4px solid var(--border-color)}.band-badge-circle.expert{border-color:var(--accent-success);background-color:var(--accent-success-glow);color:#34d399}.band-badge-circle.very-good{border-color:#3b82f6;background-color:#3b82f626;color:#93c5fd}.band-badge-circle.good{border-color:var(--accent-primary);background-color:var(--accent-primary-glow);color:var(--accent-primary)}.band-badge-circle.competent{border-color:var(--accent-warning);background-color:#f59e0b26;color:#fcd34d}.band-badge-circle.modest{border-color:#f97316;background-color:#f9731626;color:#fdba74}.band-badge-circle.limited{border-color:var(--accent-danger);background-color:var(--accent-danger-glow);color:#fca5a5}.band-badge-circle.beginner{border-color:var(--text-muted);background-color:var(--border-color);color:var(--text-secondary)}.band-name{font-size:18px;font-weight:700;margin-bottom:12px}.stat-explanation{font-size:13px;color:var(--text-secondary)}.score-metrics-card{display:flex;flex-direction:column;justify-content:space-around;gap:20px}.metric-row{display:flex;align-items:center;gap:16px}.metric-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;justify-content:center;align-items:center}.metric-icon.correct{background-color:var(--accent-success-glow);color:var(--accent-success)}.metric-icon.accuracy{background-color:var(--accent-primary-glow);color:var(--accent-primary)}.metric-icon.ielts-metric{background-color:#f59e0b1a;color:var(--accent-warning)}.metric-info{display:flex;flex-direction:column}.metric-val{font-size:20px;font-weight:700}.metric-label{font-size:13px;color:var(--text-secondary)}.result-controls{display:flex;justify-content:center;gap:16px;margin-bottom:50px}.control-btn{display:flex;align-items:center;gap:8px;padding:12px 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solid var(--border-color)}.corrections-table tr:last-child td{border-bottom:none}.cell-qnum{font-weight:700;font-family:monospace;font-size:16px;color:var(--accent-primary)}.cell-question{color:var(--text-primary)}.truncated-question{max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cell-user-answer{font-weight:600}.cell-user-answer.correct{color:var(--accent-success)}.cell-user-answer.incorrect{color:var(--accent-danger)}.empty-answer{font-style:italic;font-weight:400;color:var(--text-muted)}.cell-correct-answer{font-weight:600;color:var(--text-secondary)}.status-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;border-radius:var(--radius-sm);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.status-badge.correct{background-color:var(--accent-success-glow);color:var(--accent-success)}.status-badge.incorrect{background-color:var(--accent-danger-glow);color:var(--accent-danger)}@media (max-width: 1024px){.test-layout{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 180px;height:calc(100vh - var(--header-height))}.resizable-content-area{display:contents}.resize-divider{display:none}.passage-pane,.questions-pane{width:100%!important}.answer-sheet-drawer{grid-column:span 2;border-left:none;border-top:1px solid var(--border-color);padding:16px}.answer-sheet-grid{grid-template-columns:repeat(10,1fr)}.stats-dashboard{grid-template-columns:1fr}}@media (max-width: 768px){.home-content-layout{grid-template-columns:1fr}.test-layout{display:grid;grid-template-columns:1fr;grid-template-rows:1fr 1fr 180px}.passage-pane{border-right:none;border-bottom:1px solid var(--border-color)}.answer-sheet-drawer{grid-column:span 1}.answer-sheet-grid{grid-template-columns:repeat(6,1fr)}}.full-exam-banner{display:flex;justify-content:space-between;align-items:center;padding:28px;background:linear-gradient(135deg,#6366f126,#10b9810d);border:1px solid 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var(--border-color);border-radius:var(--radius-md);padding:4px;margin-bottom:24px}.passage-tab{flex:1;text-align:center;padding:10px;font-weight:600;font-size:14px;border-radius:var(--radius-sm);color:var(--text-secondary)}.passage-tab:hover{color:var(--text-primary);background-color:var(--bg-card-hover)}.passage-tab.active{color:var(--text-primary);background-color:var(--accent-primary);box-shadow:0 2px 8px #6366f14d}.questions-mobile-banner{background-color:var(--accent-primary-glow);border:1px solid rgba(99,102,241,.3);padding:12px;border-radius:var(--radius-md);margin-bottom:20px;font-size:13px;text-align:center;color:var(--accent-primary);font-weight:600}.home-top-bar{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid 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code{background-color:var(--bg-main);padding:2px 6px;border-radius:4px;color:var(--accent-primary)}.history-box{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;margin-bottom:16px;box-shadow:var(--shadow-md)}.history-header-row{display:flex;align-items:center;gap:8px;color:var(--accent-primary);margin-bottom:16px;border-bottom:1px solid var(--border-color);padding-bottom:10px}.history-header-row h3{font-size:16px;color:var(--text-primary)}.history-list{display:flex;flex-direction:column;gap:12px}.history-item{background-color:var(--bg-main);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:12px 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rgba(0,0,0,.15)}.toolbar-color-btn:hover{transform:scale(1.2)}.btn-hl-yellow{background-color:#fef08a}.btn-hl-green{background-color:#86efac}.btn-hl-pink{background-color:#fbcfe8}.btn-hl-blue{background-color:#93c5fd}.btn-hl-orange{background-color:#fdba74}.btn-ul-yellow{background-color:transparent;border:2.2px solid #eab308!important}.btn-ul-green{background-color:transparent;border:2.2px solid #22c55e!important}.btn-ul-pink{background-color:transparent;border:2.2px solid #ec4899!important}.btn-ul-blue{background-color:transparent;border:2.2px solid #3b82f6!important}.btn-ul-orange{background-color:transparent;border:2.2px solid #f97316!important}.toolbar-divider{width:1px;height:20px;background-color:#334155}.light-theme .toolbar-divider{background-color:#cbd5e1}.toolbar-clear-btn{display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:var(--radius-sm);color:#f43f5e;background-color:#f43f5e1a;border:1px solid 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