body{font-family:monospace;background:#1a1a1a;color:#f0f0f0;margin:0;transition:background .3s,color .3s;width:auto;padding:1em}body.light-mode{background:#fff;color:#000}#eol-toggle,#space-toggle,#spaces-only-toggle,#physics-toggle{border:none;font-size:20px;cursor:pointer;background:#2a2a2a;color:#f0f0f0;transition:color .3s}body.light-mode #eol-toggle,body.light-mode #space-toggle,body.light-mode #spaces-only-toggle,body.light-mode #physics-toggle{background-color:#f0f0f0!important;color:inherit;transition:color .3s}#theme-toggle{top:20px;padding:8px;background:none;border:none;font-size:20px;cursor:pointer;color:inherit;transition:color .3s}#eol-toggle{right:180px}#space-toggle{right:140px}#spaces-only-toggle{right:100px}#physics-toggle{right:60px}#theme-toggle{right:20px}#editor{height:60vh;padding:16px;border:1px solid #444;border-radius:8px;background:#2a2a2a;color:#f0f0f0;font-family:monospace;font-size:14px;line-height:1.4;white-space:pre-wrap;word-wrap:break-word;overflow:auto;outline:none;transition:background .3s,color .3s,border-color .3s}body.light-mode #editor{background:#f7f7f7;color:#000;border-color:#ccc}.normal-text{color:inherit}.symbol-space,.symbol-tab,.symbol-cr,.symbol-lf{color:#888}body.light-mode .symbol-space,body.light-mode .symbol-tab,body.light-mode .symbol-cr,body.light-mode .symbol-lf{color:#666}html,body{margin:0;padding-bottom:90px}#adsense-banner{bottom:0;left:0;width:100%;margin:0 auto;z-index:1000;height:10em}@media (max-width: 728px){#adsense-banner{height:10em;max-width:100%}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}header{margin-bottom:20px;position:relative}header h1{margin:0 0 10px;font-size:1.8em;font-weight:700}header nav{top:0;right:0;display:flex;flex-wrap:wrap;gap:10px;align-items:center}main section{margin-bottom:20px}main h2{color:#4a9eff;font-size:1.3em;margin-bottom:10px;border-bottom:1px solid #444;padding-bottom:5px}body.light-mode main h2{color:#2563eb;border-bottom-color:#ccc}main ul{line-height:1.6;margin:10px 0}main li{margin-bottom:8px}footer{margin-top:40px;padding-top:20px;border-top:1px solid #444;font-size:.9em;opacity:.8;text-align:center}body.light-mode footer{border-top-color:#ccc}footer a{color:#4a9eff;text-decoration:none;margin:0 10px}footer a:hover{text-decoration:underline}body.light-mode footer a{color:#2563eb}.back-to-top{position:fixed;bottom:20px;right:20px;background:#4a9eff;color:#1a1a1a;border:none;border-radius:50%;width:50px;height:50px;font-size:18px;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s ease;z-index:1000}.back-to-top.visible{opacity:1;visibility:visible}.back-to-top:hover{background:#3a8eef;transform:translateY(-2px)}body.light-mode .back-to-top{background:#2563eb;color:#fff}body.light-mode .back-to-top:hover{background:#1d4ed8}.physics-char{display:inline-block;position:absolute;will-change:transform;backface-visibility:hidden;transform-style:preserve-3d;-webkit-user-select:none;user-select:none;transition:none;font-family:inherit;font-size:inherit;color:inherit;pointer-events:none;transform:translateZ(0);-webkit-font-smoothing:subpixel-antialiased;text-rendering:optimizeSpeed;opacity:1!important}.physics-active{position:relative;contain:layout style paint;isolation:isolate;will-change:contents;overflow:visible!important}.physics-active .normal-text,.physics-active .symbol-space,.physics-active .symbol-tab,.physics-active .symbol-cr,.physics-active .symbol-lf{opacity:0;transform:translateZ(0)}.physics-active:before{content:"";position:absolute;inset:0;pointer-events:none;z-index:-1}@supports (contain: paint){.physics-char{contain:paint}}.physics-active *{will-change:auto}.physics-active .physics-char{will-change:transform}.container{max-width:800px;margin:0 auto;padding:20px}.back-link{display:inline-block;color:#4a9eff;text-decoration:none;margin-bottom:20px;padding:8px 16px;border:1px solid #4a9eff;border-radius:4px;transition:background-color .3s}.back-link:hover{background-color:#4a9eff;color:#1a1a1a}body.light-mode .back-link{color:#2563eb;border-color:#2563eb}body.light-mode .back-link:hover{background-color:#2563eb;color:#fff}.highlight-box{background:#2a2a2a;border-left:4px solid #4a9eff;padding:20px;margin:20px 0;border-radius:4px}body.light-mode .highlight-box{background:#f7f7f7;border-left-color:#2563eb}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin:20px 0}.feature-card{background:#2a2a2a;padding:20px;border-radius:8px;border:1px solid #444}body.light-mode .feature-card{background:#f7f7f7;border-color:#ccc}.feature-card h3{color:#4a9eff;margin-top:0}body.light-mode .feature-card h3{color:#2563eb}.contact-info{background:#2a2a2a;border-left:4px solid #4a9eff;padding:20px;margin:20px 0;border-radius:4px;text-align:center}body.light-mode .contact-info{background:#f7f7f7;border-left-color:#2563eb}.contact-email{font-size:1.2em;font-weight:700;color:#4a9eff;margin:10px 0}body.light-mode .contact-email{color:#2563eb}.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin:30px 0}.contact-card{background:#2a2a2a;padding:20px;border-radius:8px;border:1px solid #444;text-align:center}body.light-mode .contact-card{background:#f7f7f7;border-color:#ccc}.contact-card h3{color:#4a9eff;margin-top:0}body.light-mode .contact-card h3{color:#2563eb}.contact-card .icon{font-size:2em;margin-bottom:10px}.response-time{background:#2a2a2a;padding:15px;border-radius:4px;margin:20px 0;text-align:center;border:1px solid #444}body.light-mode .response-time{background:#f7f7f7;border-color:#ccc}.last-updated{font-style:italic;color:#888;margin-bottom:30px}body.light-mode .last-updated{color:#666}