:root{--background-color: #ffffff;--text-color: #000000;--primary-color: #0068d6;--primary-hover-color: #2165ad;--transition-speed: .3s}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--background-color);color:var(--text-color);transition:background-color var(--transition-speed),color var(--transition-speed)}.app-container{margin:0 auto;text-align:center}h1{margin:0;font-size:2.5rem;color:var(--primary-color)}.content{font-size:1.2rem}.buttons{margin-top:1vh;display:flex;flex-direction:row;justify-content:center;gap:8px}.parse-button{display:flex;justify-content:center}button{display:flex;gap:10px;padding:10px 20px;font-size:1rem;color:var(--text-color);background-color:transparent;border:2px solid var(--primary-color);border-radius:25px;cursor:pointer;transition:background-color var(--transition-speed),border-color var(--transition-speed)}button:hover{background-color:var(--primary-color);color:#fff}.theme-toggle{position:absolute;top:1vh;left:1vh;display:flex;align-items:center;justify-content:center}img{width:20px;height:20px}.white-svg{filter:brightness(0) saturate(100%) invert(100%) sepia(5%) saturate(18%) hue-rotate(134deg) brightness(107%) contrast(100%)}.editor-container{margin-top:3vh;border:3px solid var(--primary-color);width:60%;margin-left:auto;margin-right:auto}.tree{border:1px solid var(--text-color);height:52vh;margin-top:1vh;margin-left:1vw;margin-right:1vw}.node__root>circle{fill:red}.node__branch>circle{fill:#ff0}.node__leaf>circle{fill:green}.rd3t-label__title{fill:var(--text-color)!important}.error-message{color:red;font-weight:700;margin-bottom:4px}