:root{--bg: #f6f7fb;--surface: #ffffff;--surface-2: #f1f3f9;--border: #e4e7ef;--text: #10141c;--text-muted: #67707f;--primary: #4f46e5;--primary-hover: #4338ca;--primary-soft: #eef0fe;--danger: #e5484d;--danger-soft: #fdecec;--success: #16a34a;--success-soft: #e8f7ee;--warning: #d97706;--shadow: 0 1px 2px rgba(16,20,28,.06), 0 4px 16px rgba(16,20,28,.05);--radius: 14px;--radius-sm: 9px;--sidebar-w: 244px}:root[data-theme=dark]{--bg: #0c0f16;--surface: #151a24;--surface-2: #1c222e;--border: #263042;--text: #e7ecf3;--text-muted: #93a0b4;--primary: #7c83ff;--primary-hover: #9098ff;--primary-soft: #1e2340;--danger: #ff6b6f;--danger-soft: #351d20;--success: #4ade80;--success-soft: #14331f;--warning: #fbbf24;--shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 28px rgba(0,0,0,.35)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;transition:background 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