:root{--bg-primary: #f8fafc;--bg-secondary: #ffffff;--text-primary: #0f172a;--text-secondary: #64748b;--border-color: #e2e8f0}.dark{--bg-primary: #0f172a;--bg-secondary: #1e293b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--border-color: #334155;color-scheme:dark}body{background-color:var(--bg-primary);color:var(--text-primary);transition:background-color .3s ease,color .3s ease}.dark .custom-scrollbar::-webkit-scrollbar-track{background:#1e293b}.dark .custom-scrollbar::-webkit-scrollbar-thumb{background:#475569}.dark .custom-scrollbar::-webkit-scrollbar-thumb:hover{background:#64748b}