: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}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#fff;min-height:100vh;color:#333;transition:background-color .3s,color .3s;display:flex;flex-direction:column}.container{max-width:800px;margin:0 auto;padding:20px;flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:calc(100vh - 100px)}.header{text-align:center;margin-bottom:40px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;width:100%;max-width:600px}.header h1{color:#333;font-size:clamp(1.5rem,4vw,2.5rem);font-weight:700;margin:0}.theme-toggle{background:#f5f5f5;border:2px solid #ddd;color:#333;padding:8px 12px;border-radius:8px;cursor:pointer;font-size:1rem;transition:all .3s ease;width:50px;height:50px;display:flex;align-items:center;justify-content:center}.theme-toggle:hover{background:#e0e0e0;border-color:#ccc}form{display:flex;flex-direction:column;gap:15px;width:100%;max-width:600px}.input-group{display:flex;flex-direction:column;gap:8px}.input-label{color:#666;font-size:.9rem;font-weight:500;text-align:center}input{padding:15px 20px;border:2px solid #ddd;border-radius:8px;font-size:16px;background:#fff;color:#333;transition:all .3s ease;width:100%}input:focus{outline:none;border-color:#333;box-shadow:0 0 0 3px #0000001a}button{padding:15px 30px;border:none;border-radius:8px;background:#333;color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;width:100%}button:hover:not(:disabled){background:#555;transform:translateY(-1px)}button:disabled{opacity:.6;cursor:not-allowed;transform:none}.error{background:#fee;color:#c33;padding:15px 20px;border-radius:8px;text-align:center;border:1px solid #fcc;width:100%;max-width:600px}.tree-container{background:#f8f9fa;border-radius:8px;padding:25px;border:1px solid #e9ecef;margin-top:20px;width:100%;max-width:600px;overflow-x:auto}.tree-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;flex-wrap:wrap;gap:15px}.tree-header h2{color:#333;font-size:clamp(1.2rem,3vw,1.5rem);margin:0}.copy-button{background:#333;color:#fff;padding:10px 20px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .3s ease;width:auto;min-width:100px}.copy-button:hover{background:#555;transform:translateY(-1px)}pre{background:#fff;border-radius:6px;padding:20px;overflow-x:auto;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:14px;line-height:1.5;color:#333;border:1px solid #e9ecef;white-space:pre-wrap;word-wrap:break-word;max-width:100%}.copy-notification{position:fixed;top:20px;right:20px;background:#333;color:#fff;padding:15px 25px;border-radius:6px;box-shadow:0 4px 12px #0003;animation:slideIn .3s ease;z-index:1000}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.footer{background:#f8f9fa;border-top:1px solid #e9ecef;padding:10px;text-align:center;color:#666;font-size:.7rem;line-height:1}body.dark-mode{background:#1a1a1a;color:#e0e0e0}.dark-mode .header h1{color:#e0e0e0}.dark-mode .theme-toggle{background:#333;border-color:#555;color:#e0e0e0}.dark-mode .theme-toggle:hover{background:#444;border-color:#666}.dark-mode input{background:#2a2a2a;color:#e0e0e0;border-color:#555}.dark-mode input:focus{border-color:#e0e0e0;box-shadow:0 0 0 3px #ffffff1a}.dark-mode .tree-container{background:#2a2a2a;border-color:#555}.dark-mode .tree-header h2{color:#e0e0e0}.dark-mode pre{background:#1a1a1a;color:#e0e0e0;border-color:#555}.dark-mode .error{background:#3a1a1a;color:#ff6b6b;border-color:#5a2a2a}.dark-mode .footer{background:#2a2a2a;border-color:#555;color:#b0b0b0}@media (max-width: 768px){.container{padding:15px}.header{flex-direction:column;gap:15px}.tree-header{flex-direction:column;align-items:stretch}.copy-button{width:100%}pre{font-size:12px;padding:15px}}@media (max-width: 480px){.container{padding:10px}.header h1{font-size:1.8rem}input,button{padding:12px 16px;font-size:14px}.tree-container{padding:15px}pre{font-size:11px;padding:12px}}