.app{min-height:100vh;display:flex;flex-direction:column}.navbar{background-color:#2c3e50;color:#fff;padding:1rem 0;box-shadow:0 2px 4px #0000001a}.nav-container{max-width:1200px;margin:0 auto;padding:0 1rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.nav-brand{font-size:1.5rem;font-weight:700;color:#fff;text-decoration:none}.nav-links{display:flex;gap:1.5rem;flex-wrap:wrap}.nav-link{color:#fff;text-decoration:none;padding:.5rem 1rem;border-radius:4px;transition:background-color .3s}.nav-link:hover{background-color:#ffffff1a}.main-content{flex:1;max-width:1200px;width:100%;margin:2rem auto;padding:0 1rem}.footer{background-color:#34495e;color:#fff;text-align:center;padding:1.5rem;margin-top:auto}.tool-container{background:#fff;border-radius:8px;padding:2rem;box-shadow:0 2px 8px #0000001a}.tool-title{color:#2c3e50;margin-bottom:1.5rem;font-size:2rem}.tool-description{color:#666;margin-bottom:2rem;line-height:1.6}.tool-section{margin-bottom:2rem}.tool-section h3{color:#34495e;margin-bottom:1rem}.tool-input,.tool-output{width:100%;min-height:200px;padding:1rem;border:1px solid #ddd;border-radius:4px;font-family:Courier New,monospace;font-size:.9rem;resize:vertical}.tool-buttons{display:flex;gap:1rem;flex-wrap:wrap;margin-top:1rem}.tool-buttons button{padding:.75rem 1.5rem}.error-message{color:#e74c3c;margin-top:1rem;padding:1rem;background-color:#ffe6e6;border-radius:4px;border-left:4px solid #e74c3c}.success-message{color:#27ae60;margin-top:1rem;padding:1rem;background-color:#e6ffe6;border-radius:4px;border-left:4px solid #27ae60}@media (prefers-color-scheme: dark){.tool-container{background-color:#1a1a1a}.tool-title{color:#fff}.tool-description{color:#aaa}.tool-section h3{color:#ddd}}@media (max-width: 768px){.nav-container{flex-direction:column;align-items:flex-start}.nav-links{width:100%;flex-direction:column;gap:.5rem}.tool-container{padding:1rem}.tool-title{font-size:1.5rem}}.home{max-width:1200px;margin:0 auto}.hero{text-align:center;padding:3rem 0}.hero h1{font-size:3rem;color:#2c3e50;margin-bottom:1rem}.hero p{font-size:1.25rem;color:#666}.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin:3rem 0}.tool-card{background:#fff;border-radius:12px;padding:2rem;text-decoration:none;color:inherit;box-shadow:0 2px 8px #0000001a;transition:transform .3s,box-shadow .3s;text-align:center}.tool-card:hover{transform:translateY(-5px);box-shadow:0 4px 16px #00000026}.tool-icon{font-size:3rem;margin-bottom:1rem}.tool-card h3{color:#2c3e50;margin-bottom:.5rem}.tool-card p{color:#666;line-height:1.6}.features{margin-top:4rem;text-align:center}.features h2{font-size:2rem;color:#2c3e50;margin-bottom:2rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-top:2rem}.feature-item{padding:1.5rem}.feature-icon{font-size:2.5rem;margin-bottom:1rem}.feature-item h3{color:#34495e;margin-bottom:.5rem}.feature-item p{color:#666;line-height:1.6}@media (prefers-color-scheme: dark){.hero h1,.features h2{color:#fff}.hero p,.tool-card p,.feature-item p{color:#aaa}.tool-card{background-color:#1a1a1a}.tool-card h3,.feature-item h3{color:#ddd}}@media (max-width: 768px){.hero h1{font-size:2rem}.hero p{font-size:1rem}.tools-grid{grid-template-columns:1fr;gap:1rem}.features-grid{grid-template-columns:1fr}}*{margin:0;padding:0;box-sizing:border-box}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#000000de;background-color:#f5f5f5;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh}h1,h2,h3,h4,h5,h6{line-height:1.2;margin-bottom:.5em}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;color:#fff;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}textarea,input{font-family:inherit;font-size:1em;border:1px solid #ccc;border-radius:4px;padding:.5em}textarea:focus,input:focus{outline:2px solid #646cff;border-color:transparent}@media (prefers-color-scheme: dark){:root{color:#ffffffde;background-color:#242424}button{background-color:#f9f9f9;color:#1a1a1a}textarea,input{background-color:#1a1a1a;color:#fff;border-color:#444}}