/* cache/performance helpers */
html{scroll-behavior:auto;overscroll-behavior-y:none}
body{contain:layout style}
.features,.how,.result{content-visibility:auto;contain-intrinsic-size:1px 420px}
button,a,input{touch-action:manipulation}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}