*{margin:0;padding:0;box-sizing:border-box;}body{font-family:'Poppins',sans-serif;line-height:1.6;color:#333;background-color:#f8f9fa;min-height:100vh;display:flex;flex-direction:column;}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}header{background:linear-gradient(135deg,#4a6bbd,#6d5cc0);color:white;padding:1rem 0;box-shadow:0 2px 10px rgba(0,0,0,0.1);}.header-content{display:flex;justify-content:space-between;align-items:center;}.logo{display:flex;align-items:center;font-size:1.8rem;font-weight:700;text-decoration:none;color:white;}.logo span{color:#ffd166;}nav ul{display:flex;list-style:none;}nav li{margin-left:1.5rem;}nav a{color:white;text-decoration:none;font-weight:500;transition:all 0.3s ease;padding:0.5rem;border-radius:4px;}nav a:hover{background-color:rgba(255,255,255,0.2);}.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;color:white;cursor:pointer;}main{flex:1;padding:2rem 0;}.page-title{font-size:2.2rem;margin-bottom:1.5rem;color:#4a6bbd;text-align:center;}.content-box{background-color:white;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,0.05);padding:2rem;margin-bottom:2rem;}.category-section{margin-bottom:3rem;}.category-title{font-size:1.8rem;color:#2c3e50;margin-bottom:1.5rem;padding-bottom:0.5rem;border-bottom:2px solid #4a6bbd;}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1.5rem;}.tool-card{display:block;background-color:#f8f9fa;border-radius:8px;padding:1rem;text-decoration:none;color:#333;transition:all 0.3s ease;box-shadow:0 2px 5px rgba(0,0,0,0.05);height:100%;}.tool-card:hover{transform:translateY(-5px);box-shadow:0 5px 15px rgba(0,0,0,0.1);background-color:#fff;}.tool-icon{font-size:1.5rem;margin-bottom:0.75rem;color:#4a6bbd;text-align:center;font-weight:bold;}.tool-card h3{font-size:1rem;margin-bottom:0.4rem;color:#2c3e50;}.tool-card p{font-size:0.85rem;color:#666;line-height:1.4;}.page-intro{max-width:680px;margin:-0.75rem auto 1.75rem;text-align:center;color:#56616d;}.featured-tools{grid-template-columns:repeat(3,1fr);}.featured-tools .tool-card{background:#fff;border:1px solid #e7eaf0;padding:1.25rem;}.featured-tools .tool-icon{text-align:left;margin-bottom:0.5rem;}.use-case-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.25rem;}.use-case{display:block;padding:1rem;border-left:3px solid #ffd166;background:#f8f9fa;color:inherit;text-decoration:none;transition:background-color 0.2s ease,transform 0.2s ease;}.use-case:hover{background:#f0f4ff;transform:translateY(-2px);}.use-case h3{font-size:1rem;color:#2c3e50;margin-bottom:0.25rem;}.use-case p{font-size:0.9rem;color:#56616d;}.legacy-home-directory{display:none;}footer{background-color:#2c3e50;color:#ecf0f1;padding:2rem 0;margin-top:auto;}.footer-content{display:flex;flex-wrap:wrap;justify-content:space-between;}.footer-logo{margin-bottom:1rem;font-size:1.5rem;font-weight:600;}.footer-logo span{color:#ffd166;}.footer-description{max-width:300px;margin-bottom:1rem;font-size:0.9rem;color:#bdc3c7;}.footer-links h3{font-size:1.2rem;margin-bottom:1rem;color:#ecf0f1;}.footer-links ul{list-style:none;}.footer-links li{margin-bottom:0.5rem;}.footer-links a{color:#bdc3c7;text-decoration:none;transition:color 0.3s ease;}.footer-links a:hover{color:#ffd166;}.copyright{text-align:center;margin-top:2rem;padding-top:1rem;border-top:1px solid #34495e;font-size:0.9rem;color:#bdc3c7;}.number-converter{max-width:600px;margin:0 auto;}.input-group{display:flex;gap:10px;margin-bottom:1rem;}.input-field{flex:1;padding:10px;border:1px solid #ddd;border-radius:4px;font-size:16px;font-family:'Poppins',sans-serif;}.convert-btn{background:#4a6bbd;color:white;border:none;border-radius:4px;padding:0 20px;cursor:pointer;font-weight:500;font-family:'Poppins',sans-serif;transition:all 0.3s ease;}.convert-btn:hover{background:#3a5ba0;}.result-display{background-color:#f8f9fa;padding:15px;border-radius:4px;min-height:50px;border-left:4px solid #4a6bbd;}.example-text{margin-top:15px;font-size:0.9rem;color:#666;}@media (max-width:768px){.header-content{position:relative;}.mobile-menu-btn{display:block;}nav{position:absolute;top:100%;left:0;right:0;background:#4a6bbd;padding:1rem;box-shadow:0 4px 6px rgba(0,0,0,0.1);display:none;z-index:1000;}nav.active{display:block;}nav ul{flex-direction:column;}nav li{margin:0.5rem 0;margin-left:0;}.tool-grid{grid-template-columns:1fr;}.featured-tools,.use-case-list{grid-template-columns:1fr;}.footer-content>div{width:100%;margin-bottom:2rem;}}