: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;display:flex;place-items:center;min-width:320px;min-height:100vh}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}}#root{min-height:100vh;display:flex;width:100%;margin:0;padding:0}.app{flex:1;display:flex;flex-direction:column;width:100%;margin:0;padding:0}.nav{width:100vw;background:#fff;box-shadow:0 2px 8px #0000001a;position:sticky;top:0;z-index:100;margin:0;padding:0;left:0;right:0}.nav-container{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.main{flex:1;padding:2rem;max-width:1200px;margin:0 auto;width:100%}.nav-brand{display:flex;flex-direction:column}.nav-brand h1{font-size:1.8rem;color:#333;margin:0}.nav-brand p{font-size:1rem;color:#666;margin:.2rem 0 0}.nav-menu{display:flex;gap:2rem;align-items:center}.nav-item{color:#666;text-decoration:none;font-size:1.1rem;padding:.5rem 1rem;border-radius:4px;transition:all .3s ease}.nav-item:hover,.nav-item.active{color:#4a90e2;background:#4a90e21a}.main{flex:1;padding:2rem}.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;padding:1rem}.tool-card{background:#fff;border-radius:8px;padding:2rem;box-shadow:0 2px 8px #0000001a;transition:transform .3s ease}.tool-card:hover{transform:translateY(-5px)}.tool-card h3{font-size:1.5rem;color:#333;margin-bottom:1rem}.tool-card p{color:#666;margin-bottom:1.5rem}.tool-card button{background:#4a90e2;color:#fff;border:none;padding:.8rem 1.5rem;border-radius:4px;cursor:pointer;font-size:1rem;transition:background .3s ease}.tool-card button:hover{background:#357abd}.footer{text-align:center;padding:2rem 0;color:#666}.footer a{color:#666;text-decoration:none}.footer a:hover{text-decoration:underline}.input-section{display:flex;flex-direction:column;gap:1rem}.input-group{display:flex;gap:1rem;align-items:center}.input-group input{flex:1;padding:.8rem;border:1px solid #ddd;border-radius:4px;font-size:14px}.input-group button{padding:.8rem 1.5rem;border:none;border-radius:4px;background:#4a90e2;color:#fff;cursor:pointer;font-size:1rem;transition:background .3s ease;white-space:nowrap}.input-group button:hover{background:#357abd}.output-section{margin-top:1rem;padding:1rem;background:#f8f9fa;border-radius:4px}.output-section p{margin:.5rem 0;font-size:14px;color:#333}.tool-container{height:100%;padding:20px;display:flex;flex-direction:column}.tool-container h2{color:#333;margin-bottom:1.5rem;text-align:center}.input-section textarea{width:100%;padding:1rem;border:1px solid #ddd;border-radius:4px;font-family:monospace;font-size:14px;resize:vertical}.button-group{margin:1rem 0;display:flex;gap:1rem;justify-content:center}.button-group button{padding:.5rem 1.5rem;border:none;border-radius:4px;background:#4a90e2;color:#fff;cursor:pointer;font-size:1rem;transition:background .3s ease}.button-group button:hover{background:#357abd}.error-message{color:#dc3545;margin:1rem 0;padding:.5rem;background:#f8d7da;border-radius:4px;text-align:center}.output-section{margin-top:1rem;padding:1rem;background:#f8f9fa;border-radius:4px;overflow-x:auto}.output-section pre{margin:0;white-space:pre-wrap;font-family:monospace;font-size:14px}.about-container{max-width:800px;margin:0 auto;padding:2rem}.about-content{background:#fff;border-radius:8px;padding:2rem;box-shadow:0 2px 8px #0000001a}.about-content h2{color:#333;margin-bottom:1.5rem;font-size:1.8rem}.about-text p{color:#666;line-height:1.6;margin-bottom:1rem;font-size:1.1rem}.about-text .date{color:#999;font-style:italic;margin-top:2rem;text-align:right}