/* =====================================================
   Portfolio slider navigation arrows
   ===================================================== */

.slider .navigation .portfolio-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  padding: 0;
  border: none;
  background: var(--primary-color);
  cursor: pointer;
  z-index: 999;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  transition: background 0.3s ease;
}

.slider .navigation .portfolio-nav-btn.prev-btn {
  left: 0;
}

.slider .navigation .portfolio-nav-btn.next-btn {
  right: 0;
}

.slider .navigation .portfolio-arrow {
  width: 22px;
  height: 22px;
  pointer-events: none;
  transition: filter 0.3s ease;
}

.slider .navigation .portfolio-nav-btn:hover {
  background: var(--white-color);
}

.slider .navigation .portfolio-nav-btn:hover .portfolio-arrow {
  filter: invert(48%) sepia(80%) saturate(5000%) hue-rotate(160deg);
}

/* Responsive */
@media (max-width: 768px) {
  .slider .navigation .portfolio-nav-btn {
    width: 44px;
    height: 44px;
  }
  .slider .navigation .portfolio-arrow {
    width: 18px;
    height: 18px;
  }
}

@media (max-width: 480px) {
  .slider .navigation .portfolio-nav-btn {
    width: 38px;
    height: 38px;
  }
  .slider .navigation .portfolio-arrow {
    width: 16px;
    height: 16px;
  }
}