@import url(https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Inter:wght@400;500;600&family=Playfair+Display:wght@500;600;700&display=swap);:root{--bg-gradient-start:#f5f3ff;--bg-gradient-end:#eef2ff;--surface:#fff;--surface-solid:#fff;--glass-bg:#fffffff2;--glass-border:#ffffff80;--text-main:#1e1b4b;--text-muted:#6b7280;--text-light:#9ca3af;--primary:#4f46e5;--primary-hover:#4338ca;--primary-light:#eef2ff;--primary-grad:linear-gradient(135deg,#6366f1,#7c3aed);--secondary:#10b981;--border-color:#e5e7eb;--success:#10b981;--success-bg:#ecfdf5;--success-border:#a7f3d0;--error:#ef4444;--error-bg:#fef2f2;--error-border:#fecaca;--warning:#f59e0b;--warning-bg:#fffbeb;--warning-border:#fde68a;--shadow-sm:0 2px 6px #4f46e50d;--shadow-md:0 10px 24px #4f46e514;--shadow-lg:0 20px 48px #312e811a;--shadow-float:0 30px 60px #312e8124;--radius-sm:12px;--radius-md:16px;--radius-lg:28px;--radius-pill:9999px}.dark-mode{--bg-gradient-start:#0f172a;--bg-gradient-end:#1e293b;--surface:#1e293b;--surface-solid:#1e293b;--glass-bg:#1e293bf2;--glass-border:#ffffff1a;--text-main:#f1f5f9;--text-muted:#94a3b8;--text-light:#64748b;--primary:#818cf8;--primary-hover:#a5b4fc;--primary-light:#818cf826;--secondary:#34d399;--border-color:#334155;--success:#34d399;--success-bg:#064e3b33;--success-border:#34d3994d;--error:#f87171;--error-bg:#7f1d1d33;--error-border:#f871714d;--warning:#fbbf24;--warning-bg:#78350f33;--shadow-sm:0 2px 4px #0006;--shadow-md:0 10px 20px #00000080;--shadow-lg:0 20px 50px #0009;--shadow-float:0 30px 60px #000000b3}.dark-mode body{background:radial-gradient(ellipse 70% 50% at 85% 0,#7c3aed2e 0,#0000 60%),radial-gradient(ellipse 60% 50% at 0 10%,#4f46e529 0,#0000 55%),linear-gradient(180deg,#0f172a,#1e1b3a);background-attachment:fixed}.dark-mode .app-header{background:#0f172a;border-bottom-color:#334155}.dark-mode .card{background:#1e293b;border:1px solid #334155}.dark-mode .option-btn{background:#263347;border-color:#334155;color:#1e1b4b;color:var(--text-main)}.dark-mode .option-btn:hover:not(:disabled){background:#2d3f5a}.dark-mode .setup-select{background-color:#263347}.dark-mode .nav-grid .nav-btn,.dark-mode .setup-select{border-color:#334155;color:#1e1b4b;color:var(--text-main)}.dark-mode .nav-grid .nav-btn{background:#263347}.dark-mode .explanation-box{background:#0f172a;border-left-color:#4f46e5;border-left-color:var(--primary)}.dark-mode .ad-placeholder{background:#ffffff05;border-color:#334155}.dark-mode .results-stats{background:#0f172a;border-color:#334155}.dark-mode .quiz-nav-sidebar{border-color:#334155}.dark-mode .nav-links{background:#0f172a80;border-color:#334155}.dark-mode .btn-secondary{background:#263347;border-color:#334155;color:#1e1b4b;color:var(--text-main)}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:radial-gradient(ellipse 70% 50% at 85% 0,#7c3aed1a 0,#0000 60%),radial-gradient(ellipse 60% 50% at 0 10%,#6366f11a 0,#0000 55%),radial-gradient(ellipse 80% 60% at 50% 120%,#10b98114 0,#0000 55%),linear-gradient(180deg,#f5f3ff,#eef2ff);background:radial-gradient(ellipse 70% 50% at 85% 0,#7c3aed1a 0,#0000 60%),radial-gradient(ellipse 60% 50% at 0 10%,#6366f11a 0,#0000 55%),radial-gradient(ellipse 80% 60% at 50% 120%,#10b98114 0,#0000 55%),linear-gradient(180deg,var(--bg-gradient-start) 0,var(--bg-gradient-end) 100%);background-attachment:fixed;color:#1e1b4b;color:var(--text-main);font-family:Inter,-apple-system,sans-serif;min-height:100vh}.app-title,h1,h2,h3,h4,h5,h6{font-family:Playfair Display,serif;letter-spacing:-.01em}@keyframes slideUpFade{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-soft{0%,to{transform:scale(1)}50%{transform:scale(1.02)}}.animate-in{animation:slideUpFade .5s cubic-bezier(.16,1,.3,1) forwards}#root{display:flex;flex-direction:column;min-height:100vh}.app-header{align-items:center;backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);background:#ffffffd9;border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--border-color);display:flex;gap:1rem;justify-content:space-between;padding:1rem 2.5rem;position:sticky;top:0;z-index:100}.dark-mode .app-header{background:#0f172acc}.app-title{color:#1e1b4b;color:var(--text-main);font-size:1.6rem;font-weight:700;gap:.6rem}.app-title,.brand-mark{align-items:center;display:flex}.brand-mark{background:linear-gradient(135deg,#6366f1,#7c3aed);background:var(--primary-grad);border-radius:12px;box-shadow:0 6px 16px 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ease}.lang-btn:hover{color:#1e1b4b;color:var(--text-main)}.lang-btn.active{background:linear-gradient(135deg,#6366f1,#7c3aed);background:var(--primary-grad);box-shadow:0 2px 8px #6366f159;color:#fff}.dark-mode .lang-selector{background:#0f172a99;border-color:#334155}.nav-links{background:#ffffff80;border:1px solid #e5e7eb;border:1px solid var(--border-color);border-radius:9999px;border-radius:var(--radius-pill);box-shadow:inset 0 1px 2px #0000000d;display:flex;gap:.5rem;padding:.25rem}.nav-btn{background:#0000;border:none;border-radius:9999px;border-radius:var(--radius-pill);color:#6b7280;color:var(--text-muted);cursor:pointer;font-family:Inter,sans-serif;font-size:.95rem;font-weight:600;padding:.6rem 1.25rem;transition:all .3s cubic-bezier(.4,0,.2,1)}.nav-btn:hover{color:#1e1b4b;color:var(--text-main)}.nav-btn.active{background:#fff;background:var(--surface-solid);box-shadow:0 2px 6px 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var(--border-color);border-radius:16px;border-radius:var(--radius-md);color:#6b7280;color:var(--text-muted);display:flex;flex-direction:column;height:600px;justify-content:center;padding:1rem;position:sticky;text-align:center;top:100px}.ad-placeholder span{font-size:1.1rem;font-weight:600;margin-bottom:.5rem}.ad-placeholder small{font-size:.85rem;opacity:.8}@media (min-width:1100px){.ad-sidebar{display:block}}.main-content{flex:1 1;margin:0 auto;max-width:1200px;padding:3rem 2rem;width:100%}.card{background:#fff;background:var(--surface);border:none;border-radius:28px;border-radius:var(--radius-lg);box-shadow:0 20px 48px #312e811a;box-shadow:var(--shadow-lg);margin-bottom:2.5rem;overflow:hidden;padding:2.5rem;position:relative}.card:before{background:linear-gradient(135deg,#6366f1,#7c3aed);background:var(--primary-grad);content:"";height:4px;left:0;opacity:.9;position:absolute;right:0;top:0}.card:hover{box-shadow:0 30px 60px #312e8124;box-shadow:var(--shadow-float);transform:translateY(-3px);transition:all .4s ease}.card-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:2rem;padding-bottom:1.5rem}.card-title{color:#1e1b4b;color:var(--text-main);font-family:Playfair Display,serif;font-size:2rem;font-weight:700}.btn{align-items:center;appearance:none;background:linear-gradient(135deg,#6366f1,#7c3aed);background:var(--primary-grad);border:none;border-radius:9999px;border-radius:var(--radius-pill);box-shadow:0 6px 18px #6366f14d;color:#fff;cursor:pointer;display:inline-flex;font-family:Inter,sans-serif;font-size:1.05rem;font-weight:600;gap:.6rem;justify-content:center;padding:.85rem 2rem;transition:all .25s cubic-bezier(.16,1,.3,1)}.btn:hover:not(:disabled){box-shadow:0 10px 24px #6366f16b;filter:brightness(1.05);transform:translateY(-2px)}.btn-warning{background:linear-gradient(135deg,#f59e0b,#f97316);box-shadow:0 6px 18px #f59e0b4d;color:#fff}.btn-warning:hover:not(:disabled){box-shadow:0 10px 24px #f59e0b6b}.btn:active:not(:disabled){transform:translateY(0)}.btn:disabled{background:#9ca3af;background:var(--text-light);box-shadow:none;cursor:not-allowed;transform:none}.btn-secondary{background:#fff;background:var(--surface-solid);border:1px solid #e5e7eb;border:1px solid var(--border-color);box-shadow:0 2px 6px #4f46e50d;box-shadow:var(--shadow-sm);color:#1e1b4b;color:var(--text-main)}.btn-secondary:hover:not(:disabled){background:#f8fafc;border-color:#cbd5e1;box-shadow:0 10px 24px #4f46e514;box-shadow:var(--shadow-md)}.options-list{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}.option-btn{align-items:flex-start;background:#fff;background:var(--surface-solid);border:2px solid #e5e7eb;border:2px solid var(--border-color);border-radius:16px;border-radius:var(--radius-md);box-shadow:0 2px 6px #4f46e50d;box-shadow:var(--shadow-sm);color:#1e1b4b;color:var(--text-main);cursor:pointer;display:flex;font-family:Inter,sans-serif;font-size:1.1rem;line-height:1.5;padding:1.25rem 1.5rem;text-align:left;transition:all .2s ease}.option-btn:hover:not(:disabled){border-color:#eef2ff;border-color:var(--primary-light);box-shadow:0 10px 24px #4f46e514;box-shadow:var(--shadow-md);transform:translateX(4px)}.option-btn.selected{background-color:#eef2ff;background-color:var(--primary-light);border-color:#4f46e5;border-color:var(--primary);color:#4338ca;color:var(--primary-hover)}.option-btn.correct{background-color:#ecfdf5;background-color:var(--success-bg);border-color:#10b981;border-color:var(--success);box-shadow:0 4px 12px #10b98126;color:#065f46}.option-btn.incorrect{background-color:#fef2f2;background-color:var(--error-bg);border-color:#ef4444;border-color:var(--error);color:#991b1b}.option-btn:disabled{cursor:default;transform:none}.setup-hero{margin-bottom:1.75rem;text-align:center}.setup-hero-sub{color:#6b7280;color:var(--text-muted);font-size:1.02rem;line-height:1.5;margin:0 auto;max-width:460px}.setup-availability{border-top:1px solid #e5e7eb;border-top:1px solid var(--border-color);margin-top:.2rem;padding-top:.75rem}.setup-bank{color:#6b7280;color:var(--text-muted);font-size:.85rem;margin-top:.4rem;text-align:center}.setup-form{gap:1.4rem;margin:0 auto;max-width:550px}.setup-form,.setup-group{display:flex;flex-direction:column}.setup-group{gap:.5rem}.setup-group label{font-size:1.05rem;font-weight:600}.setup-group label,.setup-select{color:#1e1b4b;color:var(--text-main)}.setup-select{appearance:none;background:#fff;background:var(--surface-solid);background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-position:right 1rem center;background-repeat:no-repeat;background-size:1.2rem;border:2px solid #e5e7eb;border:2px solid var(--border-color);border-radius:16px;border-radius:var(--radius-md);cursor:pointer;font-family:Inter,sans-serif;font-size:1rem;outline:none;padding:1rem;transition:all .2s;width:100%}.setup-select:focus{border-color:#4f46e5;border-color:var(--primary);box-shadow:0 0 0 4px #eef2ff;box-shadow:0 0 0 4px var(--primary-light)}.progress-container{align-items:center;color:#6b7280;color:var(--text-muted);display:flex;font-size:1rem;font-weight:500;justify-content:space-between;margin-bottom:1.5rem}.question-progress-track{background:#e5e7eb;background:var(--border-color);border-radius:4px;box-shadow:inset 0 1px 2px #0000000d;height:8px;margin-bottom:1.5rem;overflow:hidden}.question-progress-fill{background:linear-gradient(90deg,#4f46e5,#10b981);background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:4px;height:100%;transition:width .5s cubic-bezier(.4,0,.2,1)}.topic-badge{background:#eef2ff;background:var(--primary-light);border-radius:9999px;border-radius:var(--radius-pill);color:#4338ca;color:var(--primary-hover);font-size:.85rem;font-weight:600;letter-spacing:.02em;padding:.35rem .85rem}.question-text{font-size:1.4rem;font-weight:600;line-height:1.6}.explanation-box,.question-text{color:#1e1b4b;color:var(--text-main);margin-bottom:2rem}.explanation-box{animation:slideUpFade .4s ease-out;background:#f8fafc;border-left:4px solid #4f46e5;border-left:4px solid var(--primary);border-radius:16px;border-radius:var(--radius-md);box-shadow:0 2px 6px #4f46e50d;box-shadow:var(--shadow-sm);font-size:1.05rem;line-height:1.7;padding:1.5rem}.setup-info{color:#6b7280;color:var(--text-muted);font-size:1rem;text-align:center}.notes-exam-tip{background:#ecfdf5;background:var(--success-bg);border:1px solid #a7f3d0;border-left:4px solid #10b981;border:1px solid var(--success-border);border-left:4px solid var(--success);border-radius:16px;border-radius:var(--radius-md);color:#064e3b;font-size:1rem;margin-top:1.5rem;padding:1.25rem}.results-card{text-align:center}.score-display{color:#4f46e5;color:var(--primary);font-family:Outfit,sans-serif;font-size:5rem;font-weight:700;margin:2rem 0;text-shadow:0 4px 12px #4f46e533}.score-display.low{color:#ef4444;color:var(--error);text-shadow:0 4px 12px #ef444433}.results-stats{background:#f5f3ff;background:var(--bg-gradient-start);border:1px solid #e5e7eb;border:1px solid var(--border-color);border-radius:28px;border-radius:var(--radius-lg);display:flex;gap:4rem;justify-content:center;margin-bottom:3rem;padding:2rem}.stat-item{align-items:center;display:flex;flex-direction:column}.stat-value{color:#1e1b4b;color:var(--text-main);font-family:Outfit,sans-serif;font-size:2.5rem;font-weight:700;margin-bottom:.25rem}.stat-label{color:#6b7280;color:var(--text-muted);font-size:1rem;font-weight:500;letter-spacing:.05em;text-transform:uppercase}.nav-grid{grid-gap:10px;display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(45px,1fr));margin-top:1.5rem}.nav-grid .nav-btn{align-items:center;aspect-ratio:1;background:#fff;background:var(--surface-solid);border:2px solid #e5e7eb;border:2px solid var(--border-color);border-radius:8px;color:#1e1b4b;color:var(--text-main);display:flex;font-size:1rem;font-weight:700;justify-content:center;padding:0;width:100%}.nav-grid .nav-btn:hover{border-color:#eef2ff;border-color:var(--primary-light);transform:translateY(-2px)}.nav-grid .nav-active{background:#eef2ff;background:var(--primary-light);border-color:#4f46e5;border-color:var(--primary);color:#4f46e5;color:var(--primary)}.nav-grid .nav-correct{background:#10b981;background:var(--success);border-color:#10b981;border-color:var(--success);color:#fff}.nav-grid .nav-incorrect{background:#ef4444;background:var(--error);border-color:#ef4444;border-color:var(--error);color:#fff}.flex-1{flex:1 1}.quiz-main-container{display:block;margin:0 auto;max-width:760px;width:100%}.quiz-main-container.quiz-active{max-width:860px}.quiz-active-layout{gap:1.5rem}.quiz-active-layout,.quiz-nav-top{display:flex;flex-direction:column}.quiz-nav-top{align-items:center;border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--border-color);padding-bottom:1rem}.quiz-nav-top .nav-grid{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:0;max-height:120px;overflow-y:auto;padding:4px}.quiz-nav-top .nav-grid .nav-btn{border-radius:6px;flex-shrink:0;font-size:.8rem;height:32px;width:32px}.quiz-nav-top .btn{font-size:.85rem;margin-top:.75rem;padding:.5rem 1rem}.quiz-timer-track{background:#e5e7eb;background:var(--border-color);height:6px;left:0;position:absolute;right:0;top:0;width:100%}.quiz-timer-fill{height:100%;transition:width 1s linear,background-color .3s}.window-body{width:100%}.explanation-box{background:#eef2ff;background:var(--primary-light)}@media (max-width:860px){.app-header{flex-wrap:wrap;gap:.6rem;padding:.85rem 1rem}.nav-links{justify-content:center;order:3;overflow-x:auto;width:100%}.app-title{font-size:1.35rem}.nav-btn{font-size:.9rem;padding:.5rem .9rem}.main-content{padding:1.75rem 1rem}.card{border-radius:16px;border-radius:var(--radius-md);padding:1.5rem}.card-title{font-size:1.6rem}.results-stats{gap:1.75rem;padding:1.5rem}}.app-footer{background:#fff;background:var(--surface);border-top:1px solid #e5e7eb;border-top:1px solid var(--border-color);color:#6b7280;color:var(--text-muted);font-size:.9rem;margin-top:auto;padding:2rem;text-align:center}.app-footer strong{color:#4f46e5;color:var(--primary);font-weight:700}
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