.header{background:var(--bg-white);box-shadow:var(--shadow);position:sticky;top:0;z-index:1000;padding:1rem 0}.header-content{display:flex;justify-content:space-between;align-items:center}.logo h1{font-size:1.75rem;font-weight:700;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav{display:flex;gap:2rem;align-items:center}.nav a,.nav a:visited{text-decoration:none;color:var(--text-dark);font-weight:500;transition:color .3s ease;position:relative}.nav a:hover{color:var(--primary-color)}.nav a:after{content:"";position:absolute;bottom:-5px;left:0;width:0;height:2px;background:var(--primary-color);transition:width .3s ease}.nav a:hover:after{width:100%}@media (max-width: 768px){.header-content{flex-direction:column;gap:1rem}.nav{gap:1rem;flex-wrap:wrap;justify-content:center}.nav a{font-size:.9rem}}.hero{padding:4rem 0;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;min-height:80vh;display:flex;align-items:center}.hero-content{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}.hero-text{animation:fadeInUp .8s ease}.hero-title{font-size:3rem;font-weight:800;margin-bottom:1rem;line-height:1.2}.hero-title .highlight{color:#fbbf24;text-shadow:2px 2px 4px rgba(0,0,0,.2)}.hero-subtitle{font-size:1.5rem;margin-bottom:1rem;font-weight:600;opacity:.95}.hero-description{font-size:1.1rem;margin-bottom:2rem;opacity:.9;line-height:1.8}.hero-buttons{display:flex;gap:1rem;flex-wrap:wrap}.btn{padding:.875rem 2rem;border-radius:.5rem;text-decoration:none;font-weight:600;transition:all .3s ease;display:inline-block;cursor:pointer;border:none;font-size:1rem}.btn-primary{background:#fff;color:var(--primary-color);box-shadow:var(--shadow-lg)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.btn-secondary{background:transparent;color:#fff;border:2px solid white}.btn-secondary:hover{background:#fff;color:var(--primary-color);transform:translateY(-2px)}.hero-image{display:flex;justify-content:center;align-items:center;animation:fadeInRight .8s ease}.hero-illustration{width:300px;height:300px;background:#ffffff1a;border-radius:50%;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:3px solid rgba(255,255,255,.2)}.book-icon{font-size:8rem;animation:float 3s ease-in-out infinite}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@media (max-width: 968px){.hero-content{grid-template-columns:1fr;text-align:center}.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.25rem}.hero-illustration{width:250px;height:250px}.book-icon{font-size:6rem}}@media (max-width: 768px){.hero{padding:2rem 0;min-height:auto}.hero-title{font-size:2rem}.hero-subtitle{font-size:1.1rem}.hero-description{font-size:1rem}.hero-buttons{justify-content:center}.btn{padding:.75rem 1.5rem;font-size:.9rem}}.about{padding:5rem 0;background:var(--bg-white)}.about-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}.section-title{font-size:2.5rem;font-weight:700;margin-bottom:1.5rem;color:var(--text-dark);position:relative;padding-bottom:1rem}.section-title:after{content:"";position:absolute;bottom:0;left:0;width:60px;height:4px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border-radius:2px}.about-description{font-size:1.1rem;color:var(--text-light);margin-bottom:1.5rem;line-height:1.8}.about-description strong{color:var(--primary-color);font-weight:600}.about-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin-top:2rem}.stat{text-align:center;padding:1.5rem;background:var(--bg-light);border-radius:.75rem;transition:transform .3s ease,box-shadow .3s ease}.stat:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.stat-number{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.stat-label{font-size:.9rem;color:var(--text-light);font-weight:500}.about-image{display:flex;justify-content:center;align-items:center}.teacher-illustration{width:300px;height:300px;background:linear-gradient(135deg,#f093fb,#f5576c);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);animation:pulse 2s ease-in-out infinite}.teacher-icon{font-size:8rem}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@media (max-width: 968px){.about-content{grid-template-columns:1fr;gap:3rem}.about-image{order:-1}.teacher-illustration{width:250px;height:250px}.teacher-icon{font-size:6rem}}@media (max-width: 768px){.about{padding:3rem 0}.section-title{font-size:2rem}.about-description{font-size:1rem}.about-stats{grid-template-columns:1fr;gap:1rem}.stat-number{font-size:2rem}}.features{padding:5rem 0;background:var(--bg-light)}.section-subtitle{font-size:1.2rem;color:var(--text-light);text-align:center;margin-bottom:3rem;max-width:600px;margin-left:auto;margin-right:auto}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:3rem}.feature-card{background:var(--bg-white);padding:2rem;border-radius:1rem;box-shadow:var(--shadow);transition:all .3s ease;text-align:center}.feature-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-lg)}.feature-icon{font-size:3.5rem;margin-bottom:1rem;display:inline-block;animation:bounce 2s ease-in-out infinite}.feature-card:nth-child(2) .feature-icon{animation-delay:.2s}.feature-card:nth-child(3) .feature-icon{animation-delay:.4s}.feature-card:nth-child(4) .feature-icon{animation-delay:.6s}.feature-card:nth-child(5) .feature-icon{animation-delay:.8s}.feature-card:nth-child(6) .feature-icon{animation-delay:1s}.feature-title{font-size:1.5rem;font-weight:700;margin-bottom:1rem;color:var(--text-dark)}.feature-description{color:var(--text-light);line-height:1.7;font-size:1rem}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@media (max-width: 768px){.features{padding:3rem 0}.section-title{font-size:2rem}.section-subtitle{font-size:1rem}.features-grid{grid-template-columns:1fr;gap:1.5rem}.feature-card{padding:1.5rem}.feature-icon{font-size:3rem}.feature-title{font-size:1.25rem}}.footer{background:var(--text-dark);color:#fff;padding:3rem 0 1.5rem}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem}.footer-section h3{font-size:1.5rem;margin-bottom:1rem;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.footer-section h4{font-size:1.2rem;margin-bottom:1rem;color:#fff}.footer-section p{color:#fffc;margin-bottom:.5rem;line-height:1.6}.footer-section a{display:block;color:#fffc;text-decoration:none;margin-bottom:.5rem;transition:color .3s ease}.footer-section a:hover{color:#fff;padding-left:5px}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid rgba(255,255,255,.1);color:#fff9}@media (max-width: 768px){.footer{padding:2rem 0 1rem}.footer-content{grid-template-columns:1fr;gap:1.5rem}}.privacy-policy-page{min-height:100vh;background:var(--bg-light);padding:2rem 0}.privacy-content{max-width:900px;margin:0 auto;background:var(--bg-white);padding:3rem;border-radius:1rem;box-shadow:var(--shadow)}.privacy-title{font-size:2.5rem;font-weight:700;margin-bottom:.5rem;color:var(--text-dark);text-align:center}.privacy-last-updated{text-align:center;color:var(--text-light);font-size:.9rem;margin-bottom:2rem;padding-bottom:2rem;border-bottom:2px solid var(--border-color)}.privacy-section{margin-bottom:2.5rem}.privacy-section h2{font-size:1.5rem;font-weight:700;margin-bottom:1rem;color:var(--primary-color);padding-top:1rem}.privacy-section p{color:var(--text-dark);line-height:1.8;margin-bottom:1rem;font-size:1rem}.privacy-section ul{margin-left:2rem;margin-bottom:1rem;color:var(--text-dark)}.privacy-section li{margin-bottom:.5rem;line-height:1.7}.privacy-section strong{color:var(--primary-color);font-weight:600}.contact-info{background:var(--bg-light);padding:1.5rem;border-radius:.5rem;margin-top:1rem}.contact-info p{margin-bottom:.75rem}.privacy-footer{margin-top:3rem;padding-top:2rem;border-top:2px solid var(--border-color);text-align:center}.back-link{display:inline-block;color:var(--primary-color);text-decoration:none;font-weight:600;padding:.75rem 1.5rem;border:2px solid var(--primary-color);border-radius:.5rem;transition:all .3s ease}.back-link:hover{background:var(--primary-color);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}@media (max-width: 768px){.privacy-content{padding:2rem 1.5rem;margin:1rem}.privacy-title{font-size:2rem}.privacy-section h2{font-size:1.25rem}.privacy-section p,.privacy-section li{font-size:.95rem}}.App{min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6366f1;--primary-dark: #4f46e5;--secondary-color: #ec4899;--accent-color: #f59e0b;--text-dark: #1f2937;--text-light: #6b7280;--bg-light: #f9fafb;--bg-white: #ffffff;--border-color: #e5e7eb;--shadow: 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, .1), 0 4px 6px -2px rgba(0, 0, 0, .05)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-dark);line-height:1.6;overflow-x:hidden}html{scroll-behavior:smooth}.container{max-width:1200px;margin:0 auto;padding:0 20px}@media (max-width: 768px){.container{padding:0 16px}}