@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap";:root{--primary: hsl(250, 84%, 54%);--primary-light: hsl(250, 84%, 64%);--primary-dark: hsl(250, 84%, 44%);--secondary: hsl(280, 65%, 60%);--background: hsl(240, 20%, 98%);--surface: hsl(0, 0%, 100%);--text: hsl(240, 20%, 15%);--text-muted: hsl(240, 10%, 50%);--success: hsl(145, 65%, 42%);--error: hsl(0, 75%, 55%);--warning: hsl(35, 92%, 50%);--border: hsl(240, 10%, 90%);--shadow: 0 4px 20px hsla(240, 20%, 15%, .08);--shadow-lg: 0 8px 40px hsla(240, 20%, 15%, .12);--radius: 20px;--radius-sm: 12px;--transition: .3s cubic-bezier(.4, 0, .2, 1);--glass: rgba(255, 255, 255, .7);--glass-border: rgba(255, 255, 255, .4)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Outfit,Segoe UI,system-ui,-apple-system,sans-serif;background:var(--background);color:var(--text);min-height:100vh;line-height:1.6;overflow-x:hidden}.app-container{max-width:1100px;margin:0 auto;padding:1.5rem;min-height:100vh}.page{display:none;animation:pageFadeIn .5s cubic-bezier(.4,0,.2,1)}.page.active{display:block}@keyframes pageFadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.hero{text-align:center;padding:5rem 1rem 4rem;position:relative}.hero:before{content:"";position:absolute;top:-100px;left:50%;transform:translate(-50%);width:150%;height:600px;background:radial-gradient(circle,hsla(250,84%,54%,.05) 0%,transparent 70%);z-index:-1;pointer-events:none}.logo{font-size:clamp(2.5rem,8vw,3.5rem);font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem;letter-spacing:-1px}.tagline{color:var(--text-muted);font-size:1.25rem;max-width:600px;margin:0 auto 2.5rem}.hero-cta{display:flex;justify-content:center;gap:1rem;margin-bottom:2rem;flex-wrap:wrap}.btn{padding:1rem 2rem;border-radius:var(--radius-sm);font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s cubic-bezier(.34,1.56,.64,1);border:none;display:inline-flex;align-items:center;gap:.5rem}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 4px 15px #4827ec4d}.btn-primary:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 8px 25px #4827ec66}.btn-secondary{background:var(--surface);color:var(--text);border:2px solid var(--border)}.btn-secondary:hover{transform:translateY(-4px) scale(1.02);border-color:var(--primary);color:var(--primary)}.stats-bar{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;background:var(--surface);padding:2.5rem;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);margin-bottom:4rem;text-align:center}.stat-item h3{font-size:1.75rem;font-weight:800;color:var(--primary)}.stat-item p{color:var(--text-muted);font-size:.9rem}.filter-container{display:flex;justify-content:center;gap:.75rem;margin-bottom:2rem;flex-wrap:wrap}.filter-pill{padding:.6rem 1.5rem;background:var(--surface);border:1px solid var(--border);border-radius:30px;font-size:.9rem;font-weight:600;color:var(--text-muted);cursor:pointer;transition:var(--transition)}.filter-pill.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 4px 12px #4827ec33}.domain-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-bottom:4rem}.domain-card{background:var(--surface);border-radius:var(--radius);padding:2rem;cursor:pointer;border:2px solid var(--border);transition:var(--transition);position:relative;overflow:hidden}.domain-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}.domain-card:after{content:"";position:absolute;inset:0;background:linear-gradient(45deg,transparent,hsla(250,84%,54%,.05));opacity:0;transition:var(--transition)}.domain-card:hover:after{opacity:1}.card-icon{font-size:3rem;margin-bottom:1rem}.card-title{font-size:1.25rem;font-weight:700;margin-bottom:.5rem}.card-description{color:var(--text-muted);font-size:.9rem;margin-bottom:1.5rem}.card-questions{background:var(--background);color:var(--text-muted);padding:.4rem .8rem;border-radius:20px;font-size:.8rem;font-weight:600}.high-score{position:absolute;top:1rem;right:1rem;background:var(--success);color:#fff;font-size:.75rem;font-weight:700;padding:.25rem .75rem;border-radius:20px;box-shadow:0 2px 8px #25b15f4d}.dashboard-section{display:grid;grid-template-columns:2fr 1fr;gap:2rem;margin-bottom:4rem}.progress-overview,.achievements{background:var(--surface);padding:2.5rem;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow)}.section-title{font-size:1.5rem;font-weight:800;margin-bottom:2rem;display:flex;align-items:center;gap:.75rem}.progress-item{margin-bottom:1.5rem}.progress-label{display:flex;justify-content:space-between;margin-bottom:.75rem;font-weight:700;font-size:.95rem}.progress-track{height:12px;background:var(--background);border-radius:20px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--secondary));width:0%;transition:width 1s cubic-bezier(.34,1.56,.64,1)}.badge-card{display:flex;align-items:center;gap:1.25rem;padding:1.5rem;background:var(--background);border-radius:var(--radius-sm);margin-bottom:1rem;opacity:.5;filter:grayscale(1);transition:all .5s ease;border:1px solid transparent}.badge-card.unlocked{opacity:1;filter:grayscale(0);background:#fff;border:1px solid var(--primary-light);box-shadow:0 4px 20px #4827ec1a;animation:badgeUnlock .5s cubic-bezier(.34,1.56,.64,1)}@keyframes badgeUnlock{0%{transform:scale(.8)}50%{transform:scale(1.1)}to{transform:scale(1)}}.badge-icon{font-size:2.5rem}.badge-info h4{font-weight:800;margin-bottom:2px}.badge-info p{font-size:.85rem;color:var(--text-muted)}.daily-challenge{background:linear-gradient(135deg,#4827ec1a,#af57db1a);border:2px dashed var(--primary-light);border-radius:var(--radius);padding:2.5rem;display:flex;justify-content:space-between;align-items:center;margin-bottom:4rem;gap:2rem}.challenge-content h3{font-size:1.8rem;font-weight:800;margin-bottom:.5rem}.challenge-meta{display:flex;gap:1.5rem;color:var(--text-muted);font-weight:600;font-size:.95rem}.testimonials{margin-bottom:5rem;text-align:center}.testimonial-container{max-width:800px;margin:3rem auto;position:relative;height:200px}.testimonial-card{position:absolute;top:0;left:0;right:0;opacity:0;transform:translateY(20px);transition:all .6s ease;pointer-events:none}.testimonial-card.active{opacity:1;transform:translateY(0);pointer-events:auto}.testimonial-content{font-size:1.5rem;font-style:italic;font-weight:500;line-height:1.5;margin-bottom:1.5rem}.testimonial-author{color:var(--primary);font-weight:800}.page#quiz-page{display:none;background:#f8f9fa;min-height:100vh;padding:2rem 1rem}.page#quiz-page.active{display:flex;justify-content:center;align-items:center}.quiz-container{width:100%;max-width:600px;background:var(--surface);border-radius:20px;box-shadow:0 10px 40px #0000000d;padding:2rem;position:relative;border:1px solid var(--border)}.quiz-header{margin-bottom:2rem}.back-btn{width:40px;height:40px;border-radius:50%;background:var(--background);border:1px solid var(--border);color:var(--primary);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition);font-size:1.2rem;margin-bottom:1.5rem}.back-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}.header-main{display:flex;justify-content:space-between;align-items:flex-end}.quiz-title{font-size:1.5rem;font-weight:800;color:var(--text);margin:0}.question-counter{font-size:.9rem;font-weight:700;color:var(--text-muted)}.progress-container{width:100%;height:6px;background:var(--background);border-radius:10px;overflow:hidden;margin-bottom:2.5rem}.progress-bar{height:100%;background:var(--primary);width:0%;transition:width .4s ease}.quiz-content{position:relative}.difficulty-badge{display:inline-block;padding:.4rem 1rem;border-radius:30px;font-size:.75rem;font-weight:700;margin-bottom:1.5rem;background:#eef2ff;color:#4338ca;text-transform:uppercase;letter-spacing:.5px}.difficulty-badge.intermediate{background:#fffbeb;color:#b45309}.difficulty-badge.advanced{background:#fef2f2;color:#b91c1c}.question-text{font-size:1.35rem;font-weight:700;margin-bottom:2rem;color:var(--text);line-height:1.5}.options-container{display:flex;flex-direction:column;gap:.75rem;margin-bottom:2.5rem}.option{display:flex;align-items:center;padding:1rem 1.25rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all .2s ease;font-weight:500;color:var(--text)}.option:hover:not(.disabled){border-color:var(--primary);background:#4827ec05}.option.selected{border-color:var(--primary);background:#4827ec0d}.option.correct{border-color:var(--success);background:#25b15f0d;color:var(--success)}.option.incorrect{border-color:var(--error);background:#e236360d;color:var(--error)}.option-letter{width:32px;height:32px;min-width:32px;display:flex;align-items:center;justify-content:center;background:var(--background);border:1px solid var(--border);border-radius:8px;margin-right:1rem;font-weight:700;font-size:.9rem}.option.selected .option-letter{background:var(--primary);color:#fff;border-color:var(--primary)}.option.correct .option-letter{background:var(--success);color:#fff;border-color:var(--success)}.option.incorrect .option-letter{background:var(--error);color:#fff;border-color:var(--error)}.quiz-footer{display:flex;justify-content:space-between;align-items:center;margin-top:2rem;padding-top:2rem;border-top:1px solid var(--border)}.score-tracker{font-weight:700;font-size:.95rem;color:var(--success)}.next-btn{padding:.8rem 1.75rem;border-radius:var(--radius-sm);border:none;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.5rem}.next-btn:disabled{background:var(--border);color:var(--text-muted);cursor:not-allowed;opacity:.7}.next-btn:not(:disabled):hover{transform:translateY(-2px);box-shadow:0 5px 15px #4827ec4d}.results-container{max-width:600px;margin:3rem auto;background:#fff;padding:3.5rem 2.5rem;border-radius:20px;text-align:center;box-shadow:0 10px 40px #0000000d}.final-score{font-size:4.5rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:block;margin-bottom:1rem}.results-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:2.5rem 0;padding:2rem;background:var(--background);border-radius:16px}.stat-value{font-size:1.25rem;font-weight:800;color:var(--text);display:block}.stat-label{font-size:.75rem;color:var(--text-muted);font-weight:700;text-transform:uppercase;letter-spacing:.5px}@media(max-width:900px){.dashboard-section{grid-template-columns:1fr}.stats-bar{grid-template-columns:1fr;gap:1.5rem}.daily-challenge{flex-direction:column;text-align:center}.hero{padding:3rem 1rem}}@media(max-width:600px){.logo{font-size:2.2rem}.quiz-container{padding:1.5rem;margin:1rem;width:calc(100% - 2rem)}.question-text{font-size:1.2rem}.header-main{flex-direction:column;align-items:flex-start;gap:.5rem}.results-container{padding:2.5rem 1.5rem;margin:1rem}.results-stats{grid-template-columns:1fr;gap:1.5rem}.quiz-footer{flex-direction:column-reverse;gap:1.5rem;align-items:stretch;text-align:center}.next-btn{justify-content:center}}.footer{display:flex;justify-content:center;align-items:center;text-align:center;width:100%;padding:20px 0}