:root{--primary-color:#2563eb;--secondary-color:#7c3aed;--accent-color:#06b6d4;--text-primary:#1f2937;--text-secondary:#6b7280;--background:#f9fafb;--background-alt:#f3f4f6;--border-color:#e5e7eb;--border-radius:8px;--shadow:0 1px 3px 0 rgba(0,0,0,0.1),0 1px 2px 0 rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);--transition:all 0.3s ease}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:'Inter',sans-serif;line-height:1.6;color:var(--text-primary);background:var(--background)}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.section{padding:4rem 0}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}h1,h2,h3,h4,h5,h6{margin-bottom:1rem;font-weight:600;line-height:1.2}h1{font-size:3rem;color:var(--text-primary)}h2{font-size:2.5rem;color:var(--text-primary)}h3{font-size:2rem;color:var(--text-primary)}p{margin-bottom:1rem;color:var(--text-secondary)}.btn{display:inline-block;padding:1rem 2rem;background:var(--primary-color);color:white;text-decoration:none;border-radius:var(--border-radius);font-weight:600;text-align:center;transition:var(--transition);border:none;cursor:pointer;font-size:1rem}.btn:hover{background:var(--secondary-color);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-secondary{background:var(--text-primary)}.btn-secondary:hover{background:var(--primary-color)}.btn-outline{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:white}.header{background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);position:fixed;top:0;width:100%;z-index:1000;box-shadow:var(--shadow);transition:var(--transition)}.nav{display:flex;justify-content:space-between;align-items:center;padding:1rem 0}.logo{display:flex;align-items:center;gap:0.5rem;font-size:1.5rem;font-weight:700;color:var(--primary-color);text-decoration:none}.logo img{height:40px;width:auto}.nav-menu{display:flex;list-style:none;gap:2rem;align-items:center}.nav-link{text-decoration:none;color:var(--text-primary);font-weight:500;transition:var(--transition);position:relative}.nav-link:hover{color:var(--primary-color)}.nav-link::after{content:'';position:absolute;bottom:-5px;left:0;width:0;height:2px;background:var(--primary-color);transition:var(--transition)}.nav-link:hover::after{width:100%}.nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:0.5rem;z-index:1001;position:relative}.nav-toggle span{width:25px;height:3px;background:var(--text-primary);transition:all 0.3s ease;transform-origin:center}.nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(6px,6px)}.nav-toggle.active span:nth-child(2){opacity:0}.nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}.hero{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:white;text-align:center;padding:8rem 0 6rem;margin-top:70px;position:relative;overflow:hidden}.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="white" opacity="0.1"><polygon points="0,100 1000,0 1000,100"/></svg>');background-size:cover}.hero-content{position:relative;z-index:1}.hero h1{font-size:4rem;margin-bottom:1rem;animation:fadeInUp 1s ease}.hero p{font-size:1.25rem;margin-bottom:2rem;color:rgba(255,255,255,0.9);animation:fadeInUp 1s ease 0.2s both}.hero .btn{animation:fadeInUp 1s ease 0.4s both}.grid{display:grid;gap:2rem}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.grid-4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.card{background:white;border-radius:var(--border-radius);box-shadow:var(--shadow);padding:2rem;transition:var(--transition);border:1px solid var(--border-color)}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.card h3{color:var(--text-primary);margin-bottom:0.5rem}.card p{font-size:0.95rem;margin-bottom:1.5rem}.developer-section{background:var(--background-alt)}.developer-content{display:grid;grid-template-columns:1fr 2fr;gap:3rem;align-items:center}.developer-image{text-align:center}.developer-image img{width:250px;height:250px;border-radius:50%;object-fit:cover;box-shadow:var(--shadow-lg)}.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-top:2rem}.tool-card{background:white;border-radius:var(--border-radius);box-shadow:var(--shadow);padding:2rem;text-align:center;transition:var(--transition);border:1px solid var(--border-color)}.tool-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.tool-card h3{color:var(--text-primary);margin-bottom:1rem}.tool-card p{font-size:0.95rem;margin-bottom:1.5rem}.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:2rem}.blog-card{background:white;border-radius:var(--border-radius);box-shadow:var(--shadow);overflow:hidden;transition:var(--transition);border:1px solid var(--border-color)}.blog-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.blog-card h3{color:var(--text-primary);margin-bottom:0.5rem}.blog-card p{font-size:0.9rem;margin-bottom:1.5rem}.form-group{margin-bottom:1.5rem}.form-label{display:block;margin-bottom:0.5rem;font-weight:600;color:var(--text-primary)}.form-input{width:100%;padding:0.75rem;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:1rem;transition:var(--transition)}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(37,99,235,0.1)}.form-textarea{resize:vertical;min-height:120px}.calculator{max-width:400px;margin:2rem auto;background:white;border-radius:var(--border-radius);box-shadow:var(--shadow-lg);overflow:hidden}.calculator-display{background:var(--text-primary);color:white;padding:1.5rem;font-size:2rem;text-align:right;min-height:80px;display:flex;align-items:center;justify-content:flex-end}.calculator-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border-color)}.calc-btn{padding:1.5rem;border:none;background:white;font-size:1.25rem;font-weight:600;cursor:pointer;transition:var(--transition)}.calc-btn:hover{background:var(--background-alt)}.calc-btn.operator{background:var(--primary-color);color:white}.calc-btn.operator:hover{background:var(--secondary-color)}.calc-btn.equals{background:var(--accent-color);color:white}.chatbot-container{max-width:800px;margin:2rem auto;height:600px;display:flex;flex-direction:column;background:white;border-radius:var(--border-radius);box-shadow:var(--shadow-lg);overflow:hidden}.chatbot-header{background:var(--primary-color);color:white;padding:1rem;text-align:center}.chatbot-messages{flex:1;padding:1rem;overflow-y:auto;display:flex;flex-direction:column;gap:1rem}.message{max-width:80%;padding:0.75rem 1rem;border-radius:var(--border-radius);word-wrap:break-word}.message.user{background:var(--primary-color);color:white;align-self:flex-end;border-bottom-right-radius:4px}.message.bot{background:var(--background-alt);color:var(--text-primary);align-self:flex-start;border-bottom-left-radius:4px}.chatbot-input{display:flex;padding:1rem;border-top:1px solid var(--border-color)}.chatbot-input input{flex:1;padding:0.75rem;border:1px solid var(--border-color);border-radius:var(--border-radius);margin-right:0.5rem}.reviews-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:2rem}.review-card{background:white;padding:2rem;border-radius:var(--border-radius);box-shadow:var(--shadow);border-left:4px solid var(--primary-color)}.review-rating{color:#fbbf24;font-size:1.25rem;margin-bottom:1rem}.footer{background:var(--text-primary);color:white;padding:3rem 0 1rem}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem}.footer-section h3{margin-bottom:1rem;color:white}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:0.5rem}.footer-section ul li a{color:rgba(255,255,255,0.8);text-decoration:none;transition:var(--transition)}.footer-section ul li a:hover{color:white}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid rgba(255,255,255,0.1);color:rgba(255,255,255,0.8)}@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}.animate-on-scroll{opacity:0;transform:translateY(30px);transition:all 0.6s ease}.animate-on-scroll.animated{opacity:1;transform:translateY(0)}img{max-width:100%;height:auto;display:block}.lazy-load{opacity:0;transition:opacity 0.3s ease}.lazy-load.loaded{opacity:1}.card img{width:100%;height:200px;object-fit:cover;border-radius:var(--border-radius);margin-bottom:1rem;transition:transform 0.3s ease}.card:hover img{transform:scale(1.05)}.developer-image img{border-radius:50%;object-fit:cover;box-shadow:var(--shadow-lg);transition:transform 0.3s ease}.developer-image img:hover{transform:scale(1.1)}.logo img{height:40px;width:auto;transition:transform 0.3s ease}.logo:hover img{transform:scale(1.1)}.blog-image,.article-image{width:100%;height:auto;border-radius:var(--border-radius);margin:1rem 0;box-shadow:var(--shadow)}.blog-card img{height:180px;object-fit:cover;transition:transform 0.3s ease}.blog-card:hover img{transform:scale(1.1)}.tool-icon{width:60px;height:60px;margin:0 auto 1rem;display:block}.hero img,.section img,.footer img{max-width:100%;height:auto}@media (max-width:768px){.container{padding:0 1rem}.nav-menu{position:fixed;top:70px;left:-100%;width:100%;height:calc(100vh - 70px);background:rgba(255,255,255,0.98);backdrop-filter:blur(10px);flex-direction:column;justify-content:flex-start;align-items:center;padding:3rem 2rem;gap:2rem;transition:left 0.3s ease;z-index:1000;box-shadow:var(--shadow)}.nav-menu.active{left:0}.nav-link{font-size:1.2rem;padding:1rem 0;width:100%;text-align:center;border-bottom:1px solid var(--border-color)}.nav-link:last-child{border-bottom:none}.nav-toggle{display:flex}.hero{padding:6rem 0 4rem}.hero h1{font-size:2.5rem}.hero p{font-size:1.125rem}h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.5rem}.developer-content{grid-template-columns:1fr;text-align:center;gap:2rem}.developer-image img{width:200px;height:200px}.grid-4{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}.tools-grid{grid-template-columns:1fr}.calculator{margin:1rem;max-width:100%}.chatbot-container{margin:1rem;height:500px;max-width:100%}.footer-content{grid-template-columns:1fr;text-align:center;gap:2rem}.section{padding:3rem 0}.card{padding:1.5rem}}@media (max-width:480px){.hero{padding:5rem 0 3rem}.hero h1{font-size:2rem}.hero p{font-size:1rem}.section{padding:2rem 0}.card{padding:1rem}.calculator-buttons{grid-template-columns:repeat(4,1fr)}.calc-btn{padding:1rem;font-size:1rem}.nav-menu{padding:2rem 1rem}.nav-link{font-size:1.1rem;padding:0.75rem 0}.developer-image img{width:150px;height:150px}.container{padding:0 0.75rem}.btn{padding:0.75rem 1.5rem;font-size:0.9rem}.chatbot-container{height:400px;margin:0.5rem}.calculator{margin:0.5rem}.grid-4{grid-template-columns:repeat(2,1fr);gap:1rem}}@media print{.header,.footer,.nav-toggle,.btn{display:none!important}.hero{margin-top:0}body{font-size:12pt;line-height:1.4}}@media (prefers-reduced-motion:reduce){*{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important}}.btn:focus,.form-input:focus,.nav-link:focus{outline:2px solid var(--primary-color);outline-offset:2px}.loading{opacity:0.6;pointer-events:none}.loading::after{content:'';position:absolute;top:50%;left:50%;width:20px;height:20px;margin:-10px 0 0 -10px;border:2px solid var(--primary-color);border-radius:50%;border-top-color:transparent;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}