:root{--font-mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--font-sans:"Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}:root[data-theme=dark]{--page-bg:#1e1e1e;--surface-bg:#252526;--surface-panel-bg:#232325;--surface-toolbar-bg:#2d2d30;--surface-border:#3e3e42;--surface-border-soft:#2a2a2a;--text:#e8e8e8;--text-muted:#9b9b9b;--button-bg:#333337;--button-bg-hover:#3f3f44;--accent:#ff5252;--accent-fg:#fff;--accent-hover:#e23e3e;--success:#4ade80;--danger:#f87171;--warning:#fbbf24}:root[data-theme=light]{--page-bg:#fafafa;--surface-bg:#fff;--surface-panel-bg:#f7f7f7;--surface-toolbar-bg:#f3f3f3;--surface-border:#d8d8d8;--surface-border-soft:#e8e8e8;--text:#1f1f1f;--text-muted:#686868;--button-bg:#ececec;--button-bg-hover:#dedede;--accent:#c00000;--accent-fg:#fff;--accent-hover:#a30000;--success:#15803d;--danger:#b91c1c;--warning:#d97706}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--text);background:var(--page-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}