:root{color-scheme:dark;--bg:#101216;--panel:#191c22;--panel-2:#20242c;--line:#303642;--text:#eef2f7;--muted:#a8b0bd;--accent:#77b7ff;--danger:#ff6b6b;--canvas:#f8f7f2}*{box-sizing:border-box}html,body{height:100%;margin:0;overflow:hidden}body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}button,input,select{font:inherit}button{border:1px solid var(--line);background:var(--panel-2);color:var(--text);border-radius:0;padding:.38rem .55rem;cursor:pointer}button:hover,button:focus-visible{border-color:var(--accent);outline:none}button:disabled{opacity:.45;cursor:not-allowed}label{display:grid;gap:.5rem;color:var(--muted);font-size:.82rem}input[type=range]{width:100%}