:root{color-scheme:dark;--bg: #0a0a0a;--panel: #111111;--line: #1f1f1f;--text: #ececec;--muted: #8a8a8a;--accent: #3b82f6}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}button,input,textarea{font:inherit;color:inherit}