:root,[data-theme=light]{--bg:#f3f6fb;--surface:#fff;--surface-2:#f8fafc;--surface-3:#eef2ff;--border:#dbe3f0;--border-strong:#c6d3e6;--text:#102033;--muted:#5f7187;--primary:#2563eb;--primary-dark:#1d4ed8;--primary-soft:#dbeafe;--success:#15803d;--success-soft:#dcfce7;--danger:#dc2626;--danger-soft:#fee2e2;--warning:#b45309;--warning-soft:#fef3c7;--shadow:0 12px 30px #0f172a14}[data-theme=dark]{--bg:#08111f;--surface:#0f1b31;--surface-2:#14223a;--surface-3:#1a2b47;--border:#223452;--border-strong:#345074;--text:#f4f7fb;--muted:#b8c5d8;--primary:#60a5fa;--primary-dark:#93c5fd;--primary-soft:#193252;--success:#4ade80;--success-soft:#4ade801f;--danger:#f87171;--danger-soft:#f8717124;--warning:#fbbf24;--warning-soft:#fbbf2424;--shadow:0 16px 40px #00000052}*{box-sizing:border-box}html,body,#root{background:var(--bg);min-height:100%;color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer;border:none}input,select,textarea{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--text);border-radius:12px;outline:none;padding:12px 14px;transition:all .2s}input::placeholder,textarea::placeholder{color:var(--muted)}a,p,span,small,label,strong,h1,h2,h3,h4,h5,h6,li,td,th,div,button{color:inherit}.app-shell{background:var(--bg);grid-template-columns:300px minmax(0,1fr);min-height:100vh;display:grid}.app-shell.exam-mode{grid-template-columns:1fr}.sidebar{background:color-mix(in srgb, var(--surface) 92%, transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-right:1px solid var(--border);height:100vh;padding:24px 18px;position:sticky;top:0;overflow-y:auto}.sidebar-head{gap:16px;display:grid}.sidebar h1{margin:8px 0 10px;font-size:28px;line-height:1.1}.exam-topbar{justify-content:space-between;align-items:center;gap:18px;padding:18px 24px 0;display:flex}.theme-switch{flex-wrap:wrap;gap:10px;display:flex}.sidebar-tabs{gap:10px;margin:24px 0;display:grid}.side-tab{text-align:left;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:14px;padding:12px 14px;font-weight:600}.side-tab.active{background:linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);color:#fff;border-color:#0000}.stats-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:16px;justify-content:space-between;align-items:center;margin-top:12px;padding:14px 16px;display:flex}.stats-card span{color:var(--muted);font-size:14px}.stats-card strong{font-size:22px}.main-content{flex-direction:column;gap:22px;padding:28px;display:flex}.exam-main-content{padding-top:16px}.panel{background:color-mix(in srgb, var(--surface) 96%, transparent);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:24px;padding:22px}.full-height-panel{min-height:calc(100vh - 70px)}.section-heading{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px;display:flex}.section-heading h2{margin:4px 0 0;font-size:26px;line-height:1.15}.eyebrow{color:var(--primary);text-transform:uppercase;letter-spacing:.08em;margin:0;font-size:12px;font-weight:800}.muted{color:var(--muted);line-height:1.6}.pill{background:var(--surface-3);color:var(--primary-dark);border:1px solid var(--border);border-radius:999px;align-items:center;padding:8px 12px;font-size:13px;font-weight:700;display:inline-flex}.question-form{gap:16px;display:grid}.question-form label,.bank-filter-bar label{color:var(--muted);margin-bottom:8px;font-size:13px;font-weight:700;display:block}.grid{gap:16px;display:grid}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.bank-filter-bar{grid-template-columns:1.3fr 1fr 1fr;gap:14px;margin-bottom:20px;display:grid}.button-row{flex-wrap:wrap;gap:12px;display:flex}.center-row{justify-content:center}.primary-btn,.ghost-btn,.danger-btn,.calc-icon-btn{border-radius:12px;padding:12px 16px;font-weight:700}.primary-btn{background:linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);color:#fff}.ghost-btn{background:var(--surface);color:var(--text);border:1px solid var(--border)}.danger-btn{background:var(--danger-soft);color:var(--danger);border:1px solid color-mix(in srgb, var(--danger) 22%, var(--border))}.small-btn{padding:10px 12px;font-size:13px}.question-list{gap:16px;display:grid}.question-card{border:1px solid var(--border);background:linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);border-radius:18px;padding:18px}.card-top{justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:14px;display:flex}.card-top h3{margin:0 0 6px;font-size:19px;line-height:1.3}.badges{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.badge{border-radius:999px;align-items:center;padding:7px 10px;font-size:12px;font-weight:800;display:inline-flex}.badge.module{background:color-mix(in srgb, var(--primary) 14%, transparent);color:var(--primary-dark)}.badge.difficulty{background:var(--warning-soft);color:var(--warning)}.badge.type{color:#8b5cf6;background:#7c3aed26}.toggle-grid{flex-wrap:wrap;gap:10px;display:flex}.toggle-chip{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:999px;padding:10px 14px;font-weight:700}.toggle-chip.active{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary)}.custom-modules-stack{gap:20px;display:grid}.module-builder-card{border:1px solid var(--border);background:var(--surface);border-radius:20px;padding:16px}.module-builder-header h3{margin:0 0 6px}.module-builder-grid{grid-template-columns:1fr 1fr;gap:16px;margin-top:14px;display:grid}.builder-question-list,.builder-selected-list{gap:12px;max-height:340px;display:grid;overflow-y:auto}.builder-item,.selected-row{text-align:left;border:1px solid var(--border);background:var(--surface);border-radius:16px;justify-content:space-between;align-items:center;gap:16px;width:100%;padding:14px 16px;display:flex}.builder-item p,.selected-row p{color:var(--muted);margin:6px 0 0;font-size:14px}.builder-item span{color:var(--primary-dark);font-weight:800}.row-actions{flex-wrap:wrap;gap:8px;display:flex}.dashboard-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.mode-card{background:linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);border:1px solid var(--border);border-radius:20px;gap:12px;padding:20px;display:grid}.history-table-wrap{overflow-x:auto}.history-table{border-collapse:collapse;width:100%;min-width:760px}.history-table th,.history-table td{text-align:left;border-bottom:1px solid var(--border);vertical-align:top;padding:14px 12px}.history-table th{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-size:13px}.table-actions{flex-wrap:wrap;gap:8px;display:flex}.exam-shell,.review-shell,.result-screen{position:relative;overflow:hidden}.exam-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;display:flex}.exam-tools{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}.timer-box{text-align:center;color:#fff;letter-spacing:.05em;background:#0f172a;border-radius:14px;min-width:110px;padding:12px 14px;font-size:18px;font-weight:800}.tool-panel{border:1px solid var(--border);background:var(--surface-2);border-radius:18px;margin-bottom:18px;padding:16px}.sidebar-title{color:var(--text);margin:0 0 12px;font-size:14px;font-weight:800}.reference-list{color:var(--muted);gap:8px;margin:0;padding-left:18px;display:grid}.exam-layout{grid-template-columns:220px minmax(0,1fr);align-items:start;gap:18px;display:grid}.exam-sidebar,.review-sidebar{border:1px solid var(--border);background:var(--surface-2);border-radius:18px;padding:16px}.question-menu{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;display:grid}.question-jump,.review-jump{border:1px solid var(--border);background:var(--surface);min-height:46px;color:var(--text);border-radius:12px;font-weight:800}.question-jump.active,.review-jump.active{background:var(--primary);border-color:var(--primary);color:#fff}.question-jump.marked{color:#9a3412;background:#fff7ed;border-color:#fdba74}.question-jump.answered{color:#166534;background:#ecfdf5;border-color:#86efac}.review-jump{flex-direction:column;align-items:flex-start;gap:4px;width:100%;min-height:auto;margin-bottom:10px;padding:12px;display:flex}.review-jump.correct{color:#166534;background:#ecfdf5;border-color:#86efac}.review-jump.wrong{color:#991b1b;background:#fef2f2;border-color:#fca5a5}.review-jump.unanswered{background:var(--surface);border-color:var(--border-strong);color:var(--text)}.exam-side-stats{color:var(--muted);gap:8px;margin-top:16px;font-size:14px;display:grid}.exam-main,.review-main{border:1px solid var(--border);background:var(--surface);border-radius:18px;padding:18px}.exam-passage{border:1px solid var(--border);background:color-mix(in srgb, var(--surface) 80%, white);-webkit-user-select:text;user-select:text;white-space:pre-wrap;border-radius:16px;min-height:160px;margin-bottom:16px;padding:18px;font-size:18px;line-height:1.75}.exam-passage.highlight-armed{border-color:#eab308;box-shadow:0 0 0 4px #eab30824}.highlight-chip{color:inherit;background:#fde68a;border-radius:4px;padding:.02em .06em}.exam-options{gap:12px;display:grid}.exam-option{align-items:stretch;gap:10px;display:flex}.option-main,.option-eliminate{border-radius:14px;padding:14px 16px;font-weight:600}.option-main{text-align:left;border:1px solid var(--border);background:var(--surface);color:var(--text);flex:1}.option-main.no-pointer{cursor:default}.option-eliminate{border:1px solid color-mix(in srgb, var(--danger) 20%, var(--border));background:color-mix(in srgb, var(--danger-soft) 75%, var(--surface));min-width:110px;color:var(--danger)}.exam-option.selected .option-main{border-color:var(--primary);background:color-mix(in srgb, var(--primary-soft) 85%, var(--surface));color:var(--primary-dark)}.exam-option.eliminated .option-main{border-color:color-mix(in srgb, var(--danger) 25%, var(--border));background:color-mix(in srgb, var(--danger-soft) 80%, var(--surface));color:color-mix(in srgb, var(--danger) 85%, var(--text));opacity:.82;text-decoration:line-through}.exam-option.correct-review .option-main{color:#166534;background:#ecfdf5;border-color:#86efac}.exam-option.selected-review .option-main{color:#9a3412;background:#fff7ed;border-color:#fdba74}.result-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:14px;display:grid}.result-box{border:1px solid var(--border);background:linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);border-radius:18px;padding:16px}.result-box span{color:var(--muted);margin-bottom:8px;font-size:13px;font-weight:700;display:block}.result-box strong{font-size:24px;line-height:1.2}.review-toolbar{flex-wrap:wrap;gap:10px;margin-bottom:18px;display:flex}.review-layout{grid-template-columns:220px minmax(0,1fr);gap:18px;display:grid}.empty-flagged{border:1px dashed var(--border-strong);text-align:center;background:var(--surface-2);border-radius:18px;padding:28px}.break-panel{text-align:center;flex-direction:column;justify-content:center;padding:40px 24px;display:flex}.break-timer{color:var(--primary-dark);margin:20px 0;font-size:56px;font-weight:800}.top-gap{margin-top:16px}.fade-in-screen{animation:.45s fadeScreen}@keyframes fadeScreen{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.module-transition-overlay{z-index:12;pointer-events:none;background:#060c1861;justify-content:center;align-items:center;animation:1.7s fadeOverlay;display:flex;position:absolute;inset:0}.module-transition-card{background:color-mix(in srgb, var(--surface) 94%, transparent);border:1px solid var(--border);min-width:320px;max-width:480px;box-shadow:var(--shadow);text-align:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:24px;padding:24px}.module-transition-card h3{margin:6px 0 8px;font-size:28px}.module-transition-card p{color:var(--muted);margin:0}@keyframes fadeOverlay{0%{opacity:0;transform:scale(.98)}15%{opacity:1;transform:scale(1)}85%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1.01)}}.floating-calculator{z-index:35;background:var(--surface);border:1px solid var(--border);border-radius:18px;position:fixed;overflow:hidden;box-shadow:0 30px 60px #02081759}.floating-calculator-header{color:#fff;cursor:move;-webkit-user-select:none;user-select:none;background:#081634;justify-content:space-between;align-items:center;height:52px;padding:0 14px;display:flex}.floating-calculator-title{font-size:18px;font-weight:800}.floating-calculator-actions{gap:8px;display:flex}.calc-icon-btn{color:#fff;background:#ffffff14;border-radius:10px;min-width:40px;padding:8px 10px}.floating-calculator-body{background:#fff;width:100%;height:calc(100% - 52px)}.calculator-frame{background:#fff;border:0;width:100%;height:100%}.calculator-resize-handle{cursor:nwse-resize;background:linear-gradient(135deg,#0000 0 50%,#00000038 50% 60%,#0000 60% 70%,#00000038 70% 80%,#0000 80%);width:22px;height:22px;position:absolute;bottom:0;right:0}.modal-backdrop{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:40;background:#0f172a6b;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.modal-card{background:var(--surface);border:1px solid var(--border);border-radius:22px;width:min(100%,460px);padding:24px;box-shadow:0 24px 60px #0f172a33}.modal-card h3{margin:6px 0 8px;font-size:24px}.modal-text{margin-bottom:14px}.error-text{color:var(--danger);margin:10px 0 0;font-size:14px;font-weight:700}@media (width<=1200px){.dashboard-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.exam-layout,.review-layout,.module-builder-grid{grid-template-columns:1fr}}@media (width<=980px){.app-shell{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--border);height:auto;position:static}.main-content{padding:18px}.grid.two,.bank-filter-bar,.result-grid{grid-template-columns:1fr}.section-heading,.exam-header,.card-top,.exam-topbar{flex-direction:column}.badges{justify-content:flex-start}.full-height-panel{min-height:auto}}@media (width<=720px){.dashboard-grid{grid-template-columns:1fr}.panel{border-radius:18px;padding:16px}.question-menu{grid-template-columns:repeat(5,minmax(0,1fr))}.exam-option{flex-direction:column}.option-eliminate{width:100%;min-width:0}.timer-box{width:100%}.exam-tools{justify-content:stretch}.exam-tools>*{width:100%}.floating-calculator{width:calc(100vw - 24px)!important;height:320px!important;top:auto!important;bottom:12px!important;left:12px!important}}@media (width<=520px){.main-content{padding:14px}.sidebar{padding:18px 14px}.section-heading h2{font-size:22px}.sidebar h1{font-size:24px}.question-menu{grid-template-columns:repeat(4,minmax(0,1fr))}.primary-btn,.ghost-btn,.danger-btn{justify-content:center;width:100%}.button-row{flex-direction:column}}.only-exam-main{padding:0}.builder-item,.selected-row{align-items:flex-start}.builder-item-copy,.selected-row .builder-item-copy{flex:1;min-width:0}.builder-item-copy strong{margin-bottom:6px;display:block}.builder-item-copy p{color:var(--text);white-space:normal;word-break:break-word;margin:0 0 8px;line-height:1.55}.builder-item-copy small{color:var(--muted);display:block}.selected-builder-item{background:color-mix(in srgb, var(--primary-soft) 70%, var(--surface));border-color:color-mix(in srgb, var(--primary) 40%, var(--border))}.disabled-btn{opacity:.72;cursor:not-allowed}.exam-passage{position:relative;overflow:visible}.highlight-floating-toolbar{z-index:60;background:#fffffffa;border:1px solid #0f172a1f;border-radius:18px;align-items:center;gap:10px;padding:12px 14px;display:flex;position:absolute;transform:translate(-50%,-100%);box-shadow:0 18px 40px #0f172a2e}[data-theme=dark] .highlight-floating-toolbar{border-color:var(--border);background:#0f1b31fa}.highlight-swatch{cursor:pointer;border:2px solid #0f172a1a;border-radius:999px;width:36px;height:36px;padding:0}.highlight-swatch.yellow{background:#f6e27a}.highlight-chip{cursor:pointer;-webkit-box-decoration-break:clone;box-decoration-break:clone;border-radius:4px;padding:.02em .06em}.highlight-chip.yellow{color:inherit;background:#f6e27a}.highlight-delete-pop{z-index:61;background:#fffffffa;border:1px solid #0f172a1f;border-radius:14px;padding:8px;position:absolute;transform:translateY(-50%);box-shadow:0 18px 40px #0f172a2e}[data-theme=dark] .highlight-delete-pop{border-color:var(--border);background:#0f1b31fa}.trash-btn{width:38px;height:38px;color:var(--danger);background:0 0;border-radius:10px;place-items:center;font-size:20px;display:grid}@media (width<=720px){.highlight-floating-toolbar{padding:10px 12px}.highlight-swatch{width:32px;height:32px}}
