:root{--primary: #4f46e5;--primary-hover: #4338ca;--secondary: #f3f4f6;--secondary-hover: #e5e7eb;--text-dark: #111827;--text-light: #6b7280;--bg-color: #ffffff;--danger: #ef4444;--danger-bg: #fee2e2;--border-radius-lg: 16px;--border-radius-md: 12px;--font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-dark);-webkit-font-smoothing:antialiased}.btn{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:1rem;font-size:1rem;font-weight:600;border:none;border-radius:var(--border-radius-md);cursor:pointer;transition:all .2s ease-in-out;text-align:center}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background-color:var(--primary);color:#fff}.btn-secondary{background-color:var(--secondary);color:var(--text-dark)}.btn-danger{background-color:var(--danger-bg);color:var(--danger)}@media(hover:hover){.btn-primary:hover:not(:disabled){background-color:var(--primary-hover)}.btn-secondary:hover:not(:disabled){background-color:var(--secondary-hover)}.btn-danger:hover:not(:disabled){background-color:#fca5a5}}