:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;padding:0;min-width:320px;min-height:100vh;width:100%;height:100%}#root{width:100%;min-height:100vh;margin:0;padding:0}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6366f1;--secondary-color: #8b5cf6;--accent-color: #06d6a0;--dark-bg: #0f172a;--card-bg: #1e293b;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--border-color: #334155;--gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));--shadow: 0 10px 25px rgba(0, 0, 0, .2);--shadow-hover: 0 20px 40px rgba(0, 0, 0, .3)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background-color:var(--dark-bg);color:var(--text-primary);line-height:1.6}.app{min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{background:#0f172af2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);position:fixed;top:0;width:100%;z-index:1000}.nav-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center;height:70px}.nav-logo h2{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:1.5rem;font-weight:700}.nav-menu{display:flex;align-items:center;gap:2rem}.nav-menu a{color:var(--text-secondary);text-decoration:none;font-weight:500;transition:color .3s ease}.nav-menu a:hover{color:var(--primary-color)}.login-btn{background:var(--gradient);color:#fff;border:none;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer;transition:transform .2s ease}.login-btn:hover{transform:translateY(-2px)}.hero{margin-top:70px;padding:100px 0;background:linear-gradient(135deg,var(--dark-bg) 0%,#1e293b 100%);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23334155" stroke-width="0.5" opacity="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>')}.hero-container{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;position:relative;z-index:1}.hero-title{font-size:3.5rem;font-weight:800;line-height:1.1;margin-bottom:1.5rem;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);margin-bottom:2rem;line-height:1.6}.hero-stats{display:flex;gap:2rem;margin-bottom:2rem}.stat{text-align:center}.stat-number{display:block;font-size:2rem;font-weight:700;color:var(--accent-color)}.stat-label{font-size:.9rem;color:var(--text-secondary)}.cta-button{background:var(--gradient);color:#fff;border:none;padding:15px 30px;border-radius:12px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow)}.cta-button:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.hero-image{position:relative;height:400px}.floating-elements{position:relative;height:100%}.floating-card{position:absolute;background:var(--card-bg);border:1px solid var(--border-color);border-radius:12px;padding:20px;font-size:2rem;box-shadow:var(--shadow);animation:float 6s ease-in-out infinite}.floating-card:nth-child(1){top:20%;left:20%;animation-delay:0s}.floating-card:nth-child(2){top:50%;right:20%;animation-delay:2s}.floating-card:nth-child(3){bottom:20%;left:40%;animation-delay:4s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}.search-section{padding:60px 0;background:var(--card-bg)}.search-container{max-width:800px;margin:0 auto;text-align:center}.search-input{width:100%;max-width:500px;padding:15px 20px;border:1px solid var(--border-color);border-radius:12px;background:var(--dark-bg);color:var(--text-primary);font-size:1rem;margin-bottom:2rem}.search-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f11a}.category-filters{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.filter-btn{padding:10px 20px;border:1px solid var(--border-color);border-radius:25px;background:transparent;color:var(--text-secondary);cursor:pointer;transition:all .3s ease}.filter-btn:hover,.filter-btn.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.courses-section{padding:80px 0}.section-title{text-align:center;font-size:2.5rem;font-weight:700;margin-bottom:3rem;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.courses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.course-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:16px;overflow:hidden;transition:all .3s ease;cursor:pointer}.course-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:var(--primary-color)}.course-image{position:relative;height:200px;overflow:hidden}.course-image img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.course-card:hover .course-image img{transform:scale(1.05)}.course-overlay{position:absolute;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s ease}.course-card:hover .course-overlay{opacity:1}.preview-btn{background:var(--gradient);color:#fff;border:none;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer}.course-content{padding:1.5rem}.course-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.course-type{background:var(--primary-color);color:#fff;padding:4px 12px;border-radius:20px;font-size:.8rem;font-weight:600}.course-lessons{color:var(--text-secondary);font-size:.9rem}.course-title{font-size:1.25rem;font-weight:600;margin-bottom:1rem;line-height:1.3}.course-description{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.5}.course-technologies{display:flex;gap:.5rem;margin-bottom:1.5rem;flex-wrap:wrap}.tech-badge{background:#6366f11a;color:var(--primary-color);padding:4px 8px;border-radius:6px;font-size:.8rem;font-weight:500}.enroll-btn{width:100%;background:var(--gradient);color:#fff;border:none;padding:12px;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease}.enroll-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px #6366f14d}.features-section{padding:80px 0;background:var(--card-bg)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.feature-card{text-align:center;padding:2rem;border-radius:16px;background:var(--dark-bg);border:1px solid var(--border-color);transition:all .3s ease}.feature-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.feature-icon{font-size:3rem;margin-bottom:1rem}.feature-card h3{font-size:1.25rem;margin-bottom:1rem;color:var(--text-primary)}.feature-card p{color:var(--text-secondary);line-height:1.6}.testimonials-section{padding:80px 0}.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.testimonial-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:16px;padding:2rem;transition:all .3s ease}.testimonial-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.testimonial-content{margin-bottom:1.5rem}.testimonial-content p{font-style:italic;color:var(--text-secondary);line-height:1.6}.testimonial-author{display:flex;align-items:center;gap:1rem}.author-avatar{width:50px;height:50px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:1.5rem}.testimonial-author h4{margin-bottom:.25rem;color:var(--text-primary)}.testimonial-author span{color:var(--text-secondary);font-size:.9rem}.newsletter-section{padding:60px 0;background:var(--gradient)}.newsletter-content{text-align:center;max-width:600px;margin:0 auto}.newsletter-content h2{font-size:2rem;margin-bottom:1rem;color:#fff}.newsletter-content p{margin-bottom:2rem;color:#ffffffe6}.newsletter-form{display:flex;gap:1rem;max-width:400px;margin:0 auto}.newsletter-input{flex:1;padding:12px 16px;border:none;border-radius:8px;font-size:1rem}.newsletter-btn{background:#fff;color:var(--primary-color);border:none;padding:12px 24px;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease}.newsletter-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px #0003}.footer{background:var(--dark-bg);border-top:1px solid var(--border-color);padding:60px 0 20px}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem}.footer-section h3{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem}.footer-section h4{color:var(--text-primary);margin-bottom:1rem}.footer-section p{color:var(--text-secondary);margin-bottom:1rem;line-height:1.6}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:.5rem}.footer-section ul li a{color:var(--text-secondary);text-decoration:none;transition:color .3s ease}.footer-section ul li a:hover{color:var(--primary-color)}.social-links{display:flex;gap:1rem}.social-links a{display:inline-block;width:40px;height:40px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:8px;text-align:center;line-height:38px;font-size:1.2rem;transition:all .3s ease}.social-links a:hover{background:var(--primary-color);border-color:var(--primary-color);transform:translateY(-2px)}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid var(--border-color);color:var(--text-secondary)}.modal-overlay{position:fixed;inset:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:2000}.modal-content{background:var(--card-bg);border:1px solid var(--border-color);border-radius:16px;padding:2rem;width:90%;max-width:400px;position:relative}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.modal-header h3{color:var(--text-primary)}.close-btn{background:none;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center}.login-form{display:flex;flex-direction:column;gap:1rem}.form-input{padding:12px 16px;border:1px solid var(--border-color);border-radius:8px;background:var(--dark-bg);color:var(--text-primary);font-size:1rem}.form-input:focus{outline:none;border-color:var(--primary-color)}.submit-btn{background:var(--gradient);color:#fff;border:none;padding:12px;border-radius:8px;font-weight:600;cursor:pointer;margin-top:1rem}.modal-footer{text-align:center;margin-top:1rem;color:var(--text-secondary)}.modal-footer a{color:var(--primary-color);text-decoration:none}@media (max-width: 768px){.hero-container{grid-template-columns:1fr;text-align:center}.hero-title{font-size:2.5rem}.nav-menu{gap:1rem}.nav-menu a{display:none}.courses-grid{grid-template-columns:1fr}.newsletter-form{flex-direction:column}.hero-stats{justify-content:center}}@media (max-width: 480px){.hero-title,.section-title{font-size:2rem}.container{padding:0 15px}.course-card{margin:0 10px}}