Gradient Dark Sign-In Button

<button class="cursor-pointer inline-flex flex-col leading-none outline-none overflow-hidden no-underline align-baseline whitespace-nowrap select-none transition-all duration-150 hover:opacity-85 focus:outline-none focus:ring-4 focus:ring-black/50 shadow-[0_2.8px_2.2px_rgba(0,_0,_0,_0.034),_0_6.7px_5.3px_rgba(0,_0,_0,_0.048),_0_12.5px_10px_rgba(0,_0,_0,_0.06),_0_22.3px_17.9px_rgba(0,_0,_0,_0.072),_0_41.8px_33.4px_rgba(0,_0,_0,_0.086),_0_100px_80px_rgba(0,_0,_0,_0.12)] text-base text-white text-center bg-gradient-to-b from-neutral-700 to-neutral-900 border-0 rounded-xl pt-2.5 pr-5 pb-2.5 pl-5 items-center justify-center" role="button">Sign In</button>