*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--brand-50: #eef2ff;--brand-100: #e0e7ff;--brand-400: #818cf8;--brand-500: #4f6ef7;--brand-600: #4338ca;--brand-900: #1e1b4b;--success: #22c55e;--danger: #ef4444;--warning: #f59e0b}[data-theme=dark],:root{--bg: #020617;--bg-card: #0f172a;--bg-secondary: #1e293b;--border: #1e293b;--border-strong: #334155;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #475569;--input-bg: #1e293b;--header-bg: rgba(2,6,23,.9);--nav-bg: rgba(15,23,42,.95);--scrollbar: #334155;--shadow: rgba(0,0,0,.4)}[data-theme=light]{--bg: #f8fafc;--bg-card: #ffffff;--bg-secondary: #f1f5f9;--border: #e2e8f0;--border-strong: #cbd5e1;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--input-bg: #f8fafc;--header-bg: rgba(248,250,252,.92);--nav-bg: rgba(255,255,255,.95);--scrollbar: #cbd5e1;--shadow: rgba(0,0,0,.08)}html{font-size:16px}body{font-family:Inter,Segoe 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