*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #667eea;--primary-dark: #5a67d8;--primary-light: #e3f2fd;--secondary-color: #764ba2;--accent-color: #3498db;--text-primary: #1a365d;--text-secondary: #4a5568;--text-muted: #718096;--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-light: #f0f4ff;--border-color: #e2e8f0;--success-color: #48bb78}body{font-family:Inter,-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-primary);line-height:1.7;font-weight:400;background-color:var(--bg-primary)}.font-weight-light{font-weight:300}.font-weight-regular{font-weight:400}.font-weight-medium{font-weight:500}.font-weight-semibold{font-weight:600}.font-weight-bold{font-weight:700}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background-color:var(--bg-primary);box-shadow:0 2px 10px #667eea1a;position:sticky;top:0;z-index:1000;transition:all .3s ease}.header .container{display:flex;justify-content:space-between;align-items:center;padding:1rem 20px}.logo a{font-size:1.8rem;font-weight:700;color:var(--text-primary);text-decoration:none;display:flex;align-items:center;gap:.8rem;transition:color .3s ease}.logo a:hover{color:var(--primary-color)}.nav ul{display:flex;list-style:none;gap:2rem}.nav a{text-decoration:none;color:var(--text-secondary);font-weight:500;transition:all .3s ease;position:relative;padding:.5rem 0}.nav a:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background-color:var(--primary-color);transition:width .3s ease}.nav a:hover{color:var(--primary-color);transform:translateY(-1px)}.nav a:hover:after{width:100%}.main{padding:4rem 0;min-height:calc(100vh - 200px)}.section{margin-bottom:4rem;padding:4rem 0}.section-title{font-size:2.5rem;font-weight:700;text-align:center;margin-bottom:2rem;color:var(--text-primary);letter-spacing:-.02em}.hero{text-align:center;padding:6rem 20px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:#fff;border-radius:12px;margin-bottom:4rem;box-shadow:0 10px 30px #667eea4d;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 1px,transparent 1px);background-size:20px 20px;animation:shimmer 20s linear infinite}@keyframes shimmer{0%{transform:translate(0)}to{transform:translate(40px,40px)}}.hero h1{font-size:3.5rem;margin-bottom:1rem;font-weight:700;letter-spacing:-.02em;text-shadow:0 2px 10px rgba(0,0,0,.15);position:relative;z-index:1}.hero p{font-size:1.3rem;max-width:800px;margin:0 auto 2rem;opacity:.95;line-height:1.8;position:relative;z-index:1}.cta-button{display:inline-block;padding:1rem 2rem;background-color:#fff;color:var(--primary-color);text-decoration:none;border-radius:8px;font-weight:600;transition:all .3s ease;font-size:1.1rem;box-shadow:0 4px 15px #00000026;position:relative;z-index:1;overflow:hidden}.cta-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(102,126,234,.1),transparent);transition:left .5s ease}.cta-button:hover{transform:translateY(-3px);box-shadow:0 8px 25px #667eea66}.cta-button:hover:before{left:100%}.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:3rem}.product-card{background-color:var(--bg-primary);border-radius:12px;padding:2rem;box-shadow:0 4px 20px #00000014;transition:all .3s ease;text-decoration:none;color:var(--text-primary);border:1px solid var(--border-color);position:relative;overflow:hidden}.product-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));transform:scaleX(0);transition:transform .3s ease}.product-card:hover:before{transform:scaleX(1)}.product-card:hover{transform:translateY(-5px);box-shadow:0 12px 30px #667eea26;border-color:#667eea4d}.product-card h3{font-size:1.5rem;margin-bottom:1rem;color:var(--text-primary);font-weight:600;letter-spacing:-.01em;transition:color .3s ease}.product-card:hover h3{color:var(--primary-color)}.product-card p{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.7}.product-detail{max-width:800px;margin:0 auto;background-color:var(--bg-primary);padding:3rem;border-radius:12px;box-shadow:0 4px 20px #00000014;border:1px solid var(--border-color)}.product-detail h2{font-size:2.2rem;margin-bottom:1.5rem;color:var(--text-primary);font-weight:600;letter-spacing:-.02em}.product-detail p{margin-bottom:2rem;font-size:1.1rem;line-height:1.8;color:var(--text-secondary)}.video-demo{margin:3rem 0}.video-container{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin:2rem 0}.video-item{background-color:var(--bg-secondary);padding:1rem;border-radius:12px;border:1px solid var(--border-color);transition:all .3s ease}.video-item:hover{border-color:var(--primary-color);box-shadow:0 4px 15px #667eea1a}.video-item h4{margin-bottom:1rem;font-size:1.2rem;color:var(--text-primary);font-weight:600}video{width:100%;border-radius:8px;box-shadow:0 2px 10px #0000001a;transition:all .3s ease}.video-item:hover video{box-shadow:0 4px 15px #667eea26}.upload-section{margin:2rem 0;padding:2rem;background-color:var(--bg-secondary);border-radius:12px;text-align:center;border:2px dashed var(--border-color);transition:all .3s ease}.upload-section:hover{border-color:var(--primary-color);background-color:var(--bg-light)}.upload-section input[type=file]{display:block;margin:1rem auto;padding:1rem;border:2px dashed var(--border-color);border-radius:8px;background-color:var(--bg-primary);cursor:pointer;transition:all .3s ease;width:100%}.upload-section input[type=file]:hover{border-color:var(--primary-color);background-color:var(--bg-light);transform:scale(1.02)}.upload-button{padding:.8rem 2rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;font-size:1rem;box-shadow:0 4px 15px #667eea4d}.upload-button:hover{background-color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.download-button{display:inline-block;margin-top:1rem;padding:.8rem 2rem;background-color:var(--success-color);color:#fff;text-decoration:none;border-radius:8px;font-weight:600;transition:all .3s ease;font-size:1rem;box-shadow:0 4px 15px #48bb784d}.download-button:hover{background-color:#38a169;transform:translateY(-2px);box-shadow:0 6px 20px #48bb7866}.about-menu{display:flex;justify-content:center;gap:2rem;margin-bottom:3rem;flex-wrap:wrap}.about-menu a{padding:.8rem 2rem;background-color:var(--bg-secondary);color:var(--text-secondary);text-decoration:none;border-radius:8px;font-weight:600;transition:all .3s ease;border:2px solid transparent}.about-menu a:hover,.about-menu a.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color);transform:translateY(-2px);box-shadow:0 4px 15px #667eea4d}.about-content{max-width:800px;margin:0 auto;background-color:var(--bg-primary);padding:3rem;border-radius:12px;box-shadow:0 6px 20px #00000014;border:1px solid var(--border-color)}.about-content h2{font-size:2.2rem;margin-bottom:1.5rem;color:var(--text-primary);font-weight:600;letter-spacing:-.02em}.about-content p{margin-bottom:1.5rem;font-size:1.1rem;line-height:1.8;color:var(--text-secondary)}.contact-form{max-width:600px;margin:0 auto;background-color:var(--bg-primary);padding:3rem;border-radius:12px;box-shadow:0 6px 20px #00000014;border:1px solid var(--border-color)}.form-group{margin-bottom:2rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--text-primary)}.form-group input,.form-group textarea{width:100%;padding:1rem;border:2px solid var(--border-color);border-radius:8px;font-size:1rem;transition:all .3s ease;background-color:var(--bg-primary);color:var(--text-primary)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #667eea1a;transform:translateY(-1px)}.form-group textarea{resize:vertical;min-height:150px}.submit-button{width:100%;padding:1rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:8px;font-weight:600;font-size:1.1rem;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea4d}.submit-button:hover{background-color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.footer{background-color:var(--text-primary);color:#fff;padding:3rem 0;text-align:center;position:relative;overflow:hidden}.footer:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color))}.footer p{margin:0;opacity:.9;color:#ffffffe6;font-size:.95rem}.footer .container{position:relative;z-index:1}@media (max-width: 768px){.hero h1{font-size:2.5rem}.section-title{font-size:2rem}.products-grid,.video-container{grid-template-columns:1fr}.header .container{flex-direction:column;gap:1rem}.nav ul{gap:1rem}.main{padding:2rem 0}}