:root{--brand-primary:#007aff;--brand-primary-hover:#0062cc;--brand-primary-light:rgba(0,122,255,.10);--bg-body:#eef3f8;--bg-surface:rgba(255,255,255,.62);--bg-surface-secondary:rgba(255,255,255,.42);--bg-surface-tertiary:rgba(255,255,255,.76);--text-primary:#101114;--text-secondary:#5f636b;--text-muted:#858a93;--text-on-primary:#fff;--border-color:rgba(255,255,255,.72);--border-color-hover:rgba(255,255,255,.95);--success:#34c759;--warning:#ff9f0a;--danger:#ff3b30;--info:#007aff;--font-family:"Poppins",-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Segoe UI",sans-serif;--font-size-xs:.75rem;--font-size-sm:.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.5rem;--font-size-3xl:1.875rem;--font-size-4xl:2.25rem;--container-width:1200px;--page-padding:20px;--radius-sm:10px;--radius-md:14px;--radius-lg:20px;--radius-xl:30px;--radius-full:9999px;--shadow-sm:0 4px 18px rgba(31,41,55,.05);--shadow-md:0 10px 35px rgba(31,41,55,.08);--shadow-lg:0 24px 70px rgba(31,41,55,.12);--transition-fast:160ms cubic-bezier(.2,.8,.2,1);--transition-normal:280ms cubic-bezier(.2,.8,.2,1);--z-header:1000;--z-dropdown:1100;--z-modal:2000}[data-theme="dark"]{--bg-body:#080b10;--bg-surface:rgba(30,34,42,.64);--bg-surface-secondary:rgba(30,34,42,.45);--bg-surface-tertiary:rgba(45,50,61,.72);--text-primary:#f5f5f7;--text-secondary:#b4b7be;--text-muted:#858992;--border-color:rgba(255,255,255,.12);--border-color-hover:rgba(255,255,255,.2);--brand-primary-light:rgba(10,132,255,.16)}