:root{--tool-primary:#667eea;--tool-secondary:#764ba2;--tool-accent:#f0f2ff;--tool-success:#22c55e;--tool-warning:#f59e0b;--tool-danger:#ef4444;--tool-info:#3b82f6;--base-gradient:linear-gradient(135deg,var(--tool-primary) 0%,var(--tool-secondary) 100%);--base-text:#333;--base-light:#f8f9fa;--base-white:#fff;--base-shadow:rgba(0,0,0,.1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:#333;background:#f8f9fa}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header-nav{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.1);position:sticky;top:0;z-index:1000;transition:all .3s ease}.nav-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center;height:70px;transition:all .3s ease}.header-nav.scrolled .nav-container{height:50px}.header-nav.scrolled .logo-img{height:20px;width:240px}.logo{font-size:1.5rem;font-weight:700;color:#667eea;text-decoration:none;display:flex;align-items:center}.logo-img{height:26px;width:310px;object-fit:contain;transition:all .3s ease}.nav-links{display:flex;gap:30px}.nav-links a{text-decoration:none;color:#333;font-weight:500;transition:color .3s ease}.nav-links a:hover{color:#667eea}.hamburger-menu{display:none;cursor:pointer;padding:10px;font-size:24px;color:#667eea}.mobile-nav{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(255,255,255,.95);backdrop-filter:blur(5px);z-index:1050;flex-direction:column;justify-content:center;align-items:center;gap:40px;font-size:1.5rem;text-align:center}.mobile-nav a{text-decoration:none;color:#333;font-weight:600;transition:color .3s ease}.mobile-nav a:hover{color:#667eea}.close-btn{position:absolute;top:20px;right:20px;font-size:30px;cursor:pointer;color:#333}.hero-section{background:linear-gradient(rgba(102,126,234,.9),rgba(118,75,162,.9)),url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 500"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="1000" height="500" fill="url(../#grid)"/></svg>');color:#fff;padding:80px 0 60px;text-align:center}.hero-title{font-size:3.5rem;font-weight:700;margin-bottom:20px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.hero-subtitle{font-size:1.3rem;margin-bottom:30px;opacity:.9}.hero-stats{display:flex;justify-content:center;gap:40px;margin-top:30px;flex-wrap:wrap}.stat-item{text-align:center}.stat-number{font-size:2.5rem;font-weight:700;display:block}.stat-label{font-size:.9rem;opacity:.8}.btn{background:var(--base-gradient);color:#fff;border:0;padding:15px 30px;border-radius:25px;font-weight:600;font-size:1.1rem;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:all .3s ease;animation:pulse 2s infinite ease-in-out}.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(102,126,234,.3);animation:none}.btn-primary{background:#fff;color:#667eea;border:2px solid #fff}.btn-secondary{background:transparent;color:#fff;border:2px solid #fff}.action-buttons{display:flex;justify-content:center;gap:20px;margin:40px 0;flex-wrap:wrap}.tools-navigation{background:#fff;margin:-40px auto 0;border-radius:20px;box-shadow:0 20px 40px rgba(0,0,0,.1);padding:40px 20px;max-width:1100px;position:relative;z-index:10}.tool-main+.tools-navigation{margin-top:40px;box-shadow:0 10px 30px rgba(0,0,0,.08)}.category-tabs{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:30px}.tab-button{background:linear-gradient(135deg,#f8f9ff 0%,#e8f0ff 100%);border:2px solid #e0e8ff;color:#667eea;padding:12px 24px;border-radius:50px;cursor:pointer;font-weight:600;transition:all .3s ease;text-transform:capitalize}.tab-button:hover{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,.4)}.tab-button.active{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border-color:#764ba2}.tools-grid{display:none;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:30px}.tools-grid.active{display:grid}.tool-card{background:linear-gradient(135deg,#f8f9ff 0%,#fff 100%);border:1px solid #e0e8ff;border-radius:15px;padding:20px;text-decoration:none;color:inherit;transition:all .3s ease;position:relative;overflow:hidden}.tool-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);transform:scaleX(0);transition:transform .3s ease}.tool-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(102,126,234,.15);border-color:#667eea}.tool-card:hover::before{transform:scaleX(1)}.tool-icon{width:48px;height:48px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:15px;color:#fff;font-size:24px}.tool-name{font-size:1.1rem;font-weight:600;color:#333;margin-bottom:8px}.tool-description{font-size:.9rem;color:#666;line-height:1.4}.comparison-section,.content-section,.reviews-section,.faq-section,.sharing-section{padding:80px 0}.section-title{font-size:2.5rem;font-weight:700;text-align:center;margin-bottom:20px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-subtitle{text-align:center;font-size:1.2rem;color:#666;margin-bottom:60px;max-width:800px;margin-left:auto;margin-right:auto}.comparison-table{overflow-x:auto;margin:40px 0;border-radius:15px;box-shadow:0 10px 30px rgba(0,0,0,.1)}.comparison-table table{width:100%;border-collapse:collapse;background:#fff}.comparison-table th{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:20px 15px;text-align:left;font-weight:600}.comparison-table td{padding:15px;border-bottom:1px solid #f0f2ff}.comparison-table tr:hover{background:#f8f9ff}.feature-check{color:#22c55e;font-weight:bold}.feature-cross{color:#ef4444;font-weight:bold}.category-content{margin-bottom:60px}.category-header{display:flex;align-items:center;margin-bottom:30px;padding-bottom:15px;border-bottom:3px solid #f0f2ff}.category-icon{width:60px;height:60px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:15px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;margin-right:20px}.category-title{font-size:2rem;font-weight:600;color:#333}.tools-description-list{display:flex;flex-direction:column;gap:30px}.tool-detail-card{background:#f8f9ff;border-radius:15px;padding:30px;border-left:4px solid #667eea;position:relative}.tool-detail-header{display:flex;align-items:flex-start;gap:20px;margin-bottom:20px}.tool-detail-icon{width:60px;height:60px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;flex-shrink:0}.tool-detail-info{flex:1}.tool-detail-name{font-size:1.5rem;font-weight:600;color:#333;margin-bottom:10px}.tool-detail-description{color:#555;line-height:1.6;margin-bottom:20px;font-size:1rem}.tool-features{list-style:none;margin-bottom:20px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px}.tool-features li{color:#666;padding-left:25px;position:relative;font-size:.95rem}.tool-features li::before{content:'✓';position:absolute;left:0;color:#667eea;font-weight:bold;font-size:16px}.tool-actions{display:flex;gap:15px;align-items:center;flex-wrap:wrap}.try-tool-btn{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:12px 24px;border-radius:25px;text-decoration:none;font-weight:600;display:inline-block;transition:all .3s ease}.try-tool-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,.4)}.tool-popularity{background:#e8f0ff;color:#667eea;padding:6px 12px;border-radius:15px;font-size:.85rem;font-weight:500}.cta-integration{background:linear-gradient(135deg,#f0f2ff 0%,#e8f0ff 100%);border-radius:15px;padding:25px;margin:30px 0;text-align:center}.cta-integration h4{color:#333;margin-bottom:15px;font-size:1.2rem}.cta-integration p{color:#666;margin-bottom:20px}.cta-links{display:flex;justify-content:center;gap:15px;flex-wrap:wrap}.cta-link{background:#667eea;color:#fff;padding:8px 16px;border-radius:20px;text-decoration:none;font-size:.9rem;transition:all .3s ease}.cta-link:hover{background:#764ba2;transform:translateY(-2px)}.reviews-section{background:#f8f9ff}.reviews-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px;margin-top:40px}.review-card{background:#fff;border-radius:15px;padding:30px;box-shadow:0 5px 20px rgba(0,0,0,.08)}.review-header{display:flex;align-items:center;gap:15px;margin-bottom:15px}.reviewer-avatar{width:50px;height:50px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:1.2rem}.reviewer-info h5{font-weight:600;color:#333;margin-bottom:5px}.reviewer-info .reviewer-role{font-size:.9rem;color:#666}.rating{display:flex;gap:3px;margin-bottom:15px}.star{color:#fbbf24;font-size:1.2rem}.review-text{color:#555;line-height:1.6;font-style:italic}.faq-container{max-width:800px;margin:0 auto}.faq-item{border-bottom:1px solid #f0f2ff;margin-bottom:20px}.faq-question{background:none;border:0;width:100%;text-align:left;padding:20px 0;font-size:1.1rem;font-weight:600;color:#333;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.faq-question:hover{color:#667eea}.faq-answer{padding-bottom:20px;color:#666;line-height:1.6;display:none}.faq-answer.active{display:block}.faq-icon{transition:transform .3s ease}.faq-icon.rotated{transform:rotate(180deg)}.sharing-section{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;text-align:center}.sharing-buttons{display:flex;justify-content:center;gap:20px;margin-top:30px;flex-wrap:wrap}.share-btn{background:rgba(255,255,255,.2);color:#fff;padding:12px 20px;border-radius:25px;text-decoration:none;font-weight:600;transition:all .3s ease;display:flex;align-items:center;gap:8px}.share-btn:hover{background:rgba(255,255,255,.3);transform:translateY(-2px)}.back-to-top{position:fixed;bottom:30px;right:30px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:1.2rem;opacity:0;transition:all .3s ease;z-index:1000}.back-to-top.visible{opacity:1}.back-to-top:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,.4)}.footer{background:#333;color:#fff;padding:40px 0;text-align:center}.footer-links{display:flex;justify-content:center;gap:30px;margin-bottom:20px;flex-wrap:wrap}.footer-links a{color:#fff;text-decoration:none;font-weight:500;transition:color .3s ease}.footer-links a:hover{color:#667eea}.social-icons{display:flex;justify-content:center;gap:20px;margin-top:20px}.social-icon{width:40px;height:40px;background-color:#555;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s ease}.social-icon:hover{transform:translateY(-3px)}.social-icon img{width:24px;height:24px}.tool-hero{background:var(--base-gradient),url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 300"><defs><pattern id="grid" width="30" height="30" patternUnits="userSpaceOnUse"><path d="M 30 0 L 0 0 0 30" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="1000" height="300" fill="url(../#grid)"/></svg>');color:#fff;padding:60px 0 40px;text-align:center}.tool-hero-title{font-size:2.8rem;font-weight:700;margin-bottom:15px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.tool-hero-subtitle{font-size:1.1rem;margin-bottom:20px;opacity:.9;max-width:600px;margin-left:auto;margin-right:auto}.tool-breadcrumb{font-size:.9rem;opacity:.8;margin-bottom:10px}.tool-breadcrumb a{color:#fff;text-decoration:none;opacity:.8}.tool-breadcrumb a:hover{opacity:1}.tool-main{background:#fff;margin:-30px auto 0;border-radius:20px;box-shadow:0 20px 40px var(--base-shadow);max-width:800px;position:relative;z-index:10;overflow:hidden}.tool-interface{padding:40px}.tool-form{margin-bottom:30px}.form-group{margin-bottom:25px}.form-group label{display:block;font-weight:600;color:var(--base-text);margin-bottom:8px;font-size:1rem}.form-control{width:100%;padding:15px 20px;border:2px solid #e0e8ff;border-radius:12px;font-size:1rem;transition:all .3s ease;background:#f8f9ff}.form-control:focus{outline:0;border-color:var(--tool-primary);box-shadow:0 0 0 3px rgba(102,126,234,.1);background:#fff}.tool-btn{background:var(--base-gradient);color:#fff;border:0;padding:15px 30px;border-radius:25px;font-weight:600;font-size:1.1rem;cursor:pointer;transition:all .3s ease;width:100%;margin-top:10px}.tool-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(102,126,234,.3)}.tool-results{background:linear-gradient(135deg,var(--tool-accent) 0%,#fff 100%);padding:40px;border-top:1px solid #e0e8ff;display:none}.tool-results.active{display:block}.result-card{background:#fff;border-radius:15px;padding:30px;text-align:center;box-shadow:0 10px 25px rgba(0,0,0,.05);margin-bottom:30px;border-left:5px solid var(--tool-primary)}.result-label{font-size:.9rem;color:#666;margin-bottom:8px;text-transform:uppercase;letter-spacing:1px;font-weight:500}.result-value{font-size:3rem;font-weight:700;color:var(--tool-primary);margin-bottom:10px}.result-category{font-size:1.3rem;font-weight:600;margin-bottom:15px}.result-description{color:#666;line-height:1.6;font-size:1rem}.ai-analysis{background:linear-gradient(135deg,#f8f9ff 0%,#e8f0ff 100%);border-radius:15px;padding:25px;margin-bottom:30px}.ai-analysis-title{font-size:1.2rem;font-weight:600;color:var(--base-text);margin-bottom:15px;display:flex;align-items:center;gap:8px}.ai-buttons{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}.ai-btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px 16px;border-radius:10px;text-decoration:none;font-weight:600;font-size:.9rem;transition:all .3s ease;border:2px solid transparent}.ai-btn.chatgpt{background:#74aa9c;color:#fff}.ai-btn.perplexity{background:#20b2aa;color:#fff}.ai-btn.google-ai{background:#4285f4;color:#fff}.ai-btn.claude{background:#d4a574;color:#fff}.ai-btn.bing-ai{background:#0078d4;color:#fff}.ai-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(0,0,0,.2)}.next-steps{background:#fff;border-radius:15px;padding:30px;box-shadow:0 5px 15px rgba(0,0,0,.05);border-top:3px solid var(--tool-primary)}.next-steps h3{color:var(--tool-primary);font-size:1.4rem;margin-bottom:15px}.next-steps p{color:#666;margin-bottom:20px;line-height:1.6}.cta-buttons{display:flex;gap:15px;margin-bottom:20px;flex-wrap:wrap}.cta-btn{background:var(--base-gradient);color:#fff;padding:12px 20px;border-radius:25px;text-decoration:none;font-weight:600;transition:all .3s ease;display:inline-flex;align-items:center;gap:8px}.cta-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,.3)}.related-tools{font-size:.9rem;color:#666}.related-tools a{color:var(--tool-primary);text-decoration:none;font-weight:500}.related-tools a:hover{text-decoration:underline}.w5h1-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:30px;margin-bottom:40px}.w5h1-card{background:linear-gradient(135deg,var(--tool-accent) 0%,#fff 100%);border-radius:15px;padding:30px;border-left:4px solid var(--tool-primary);transition:all .3s ease}.w5h1-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px var(--base-shadow)}.w5h1-header{display:flex;align-items:center;gap:15px;margin-bottom:20px}.w5h1-icon{width:50px;height:50px;background:var(--base-gradient);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px}.w5h1-title{font-size:1.3rem;font-weight:600;color:var(--base-text)}.w5h1-content{color:#555;line-height:1.7}.w5h1-content ul{margin:15px 0;padding-left:20px}.w5h1-content li{margin-bottom:8px}@media(max-width:768px){.nav-links{display:none}.hamburger-menu{display:block}.hero-title{font-size:2.5rem}.hero-stats{gap:20px}.stat-number{font-size:2rem}.tools-grid{grid-template-columns:1fr}.category-header{flex-direction:column;text-align:center}.category-icon{margin-right:0;margin-bottom:15px}.tool-detail-header{flex-direction:column;text-align:center}.tool-features{grid-template-columns:1fr}.comparison-table{font-size:.9rem}.reviews-grid{grid-template-columns:1fr}.tool-hero-title{font-size:2.2rem}.tool-interface{padding:30px 20px}.tool-results{padding:30px 20px}.result-value{font-size:2.5rem}.ai-buttons{grid-template-columns:1fr 1fr}.cta-buttons{flex-direction:column}.w5h1-grid{grid-template-columns:1fr}}