*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg: #0d1117;--color-surface: #161b22;--color-surface-raised:#1e2530;--color-border: #30363d;--color-text: #e6edf3;--color-muted: #7d8590;--color-accent: #58a6ff;--color-accent-dim: rgba(88, 166, 255, .12)}html,body{height:100%;background:var(--color-bg);color:var(--color-text);font-family:Segoe UI,system-ui,-apple-system,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--color-bg)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-muted)}button{border:none;cursor:pointer}