:root{--primary:#6366f1;--primary-light:#818cf8;--primary-dark:#4f46e5;--secondary:#0ea5e9;--secondary-light:#38bdf8;--secondary-dark:#0284c7;--background:#fff;--background-alt:#f8fafc;--surface:#fff;--surface-alt:#f1f5f9;--text-primary:#1e293b;--text-secondary:#475569;--border:#e2e8f0;--button-bg:#f1f5f9;--button-hover:#e2e8f0;--input-bg:#fff;--card-bg:#fff;--card-border:#e2e8f0}@media (prefers-color-scheme:dark){:root:not(.light-mode){--background:#0f172a;--background-alt:#1e293b;--surface:#1e293b;--surface-alt:#2d3a4f;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--border:#334155;--button-bg:#334155;--button-hover:#475569;--input-bg:#1e293b;--card-bg:#1e293b;--card-border:#334155}}:root.dark-mode{--background:#0f172a;--background-alt:#1e293b;--surface:#1e293b;--surface-alt:#2d3a4f;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--border:#334155;--button-bg:#334155;--button-hover:#475569;--input-bg:#1e293b;--card-bg:#1e293b;--card-border:#334155}body{background-color:var(--background);color:var(--text-primary)}*{transition:background-color .3s ease,color .3s ease,border-color .3s ease}input,textarea{background-color:var(--input-bg);border:1px solid var(--border);color:var(--text-primary)}input:focus,textarea:focus{border-color:var(--primary);outline:none}.card{background-color:var(--card-bg);border:1px solid var(--card-border)}.btn{background-color:var(--button-bg);color:var(--text-primary)}.btn:hover{background-color:var(--button-hover)}body{background-color:#f5f5f5;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;margin:0}