*,
*::before,
*::after {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}



.portfolio__nav-btn {
  transition: background-color 0.25s ease, color 0.25s ease,
    border-color 0.25s ease, transform 0.2s ease;
}

.portfolio__nav-btn:hover {
  transform: scale(1.08);
}

.portfolio__nav-btn:active {
  transform: scale(0.96);
}






.portfolio__slide-logo img {
  transition: opacity 0.3s ease, filter 0.3s ease;
}

.portfolio__slide:hover .portfolio__slide-logo img {
  opacity: 1;
}

.footer__nav-link {
  position: relative;
  transition: opacity 0.25s ease;
}
.footer__discuss {
  transition: opacity 0.25s ease, transform 0.3s ease;
}

.footer__discuss:hover {
  opacity: 0.75;
  transform: translateX(6px);
}

.footer__scroll-top {
  transition: transform 0.3s ease, opacity 0.25s ease;
}

.footer__scroll-top:hover {
  transform: translateY(-4px);
  opacity: 0.75;
}

.footer__scroll-top:active {
  transform: translateY(0);
}

.footer__policy {
  transition: opacity 0.25s ease;
}

.footer__policy:hover {
  opacity: 0.7;
}


@keyframes arrowPulse {
  0%, 100% { transform: translateX(0); }
  50%       { transform: translateX(3px); }
}

.about__btn:hover .about__btn-icon,
.intro__btn:hover .intro__btn-icon,
.directions__btn:hover .directions__btn-icon,
.slogan__btn:hover .slogan__btn-icon,
.invest__btn:hover .invest__btn-icon,
.contact__btn:hover .contact__btn-icon,
.portfolio__card-btn:hover .portfolio__card-btn-icon {
  animation: arrowPulse 0.6s ease;
}


@keyframes pageFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

body {
  animation: pageFadeIn 0.5s ease forwards;
}