.reveal-on-scroll {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-on-scroll.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-on-scroll .section-title,
.reveal-on-scroll .section-subtitle {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease-out 0.12s, transform 0.55s ease-out 0.12s;
}

.reveal-on-scroll.reveal-visible .section-title,
.reveal-on-scroll.reveal-visible .section-subtitle {
  opacity: 1;
  transform: translateY(0);
}

.typing-cursor {
  display: inline-block;
  width: 4px;
  height: 1.05em;
  margin-left: 3px;
  vertical-align: text-bottom;
  background: var(--color-accent);
  animation: typing-cursor-blink 1s step-end infinite;
}

@keyframes typing-cursor-blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

.portfolio-item {
  transform-origin: center top;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal),
    background var(--transition-normal), opacity 0.25s ease-out;
}

.portfolio-item:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.9);
}

.portfolio-item.portfolio-hidden {
  opacity: 0;
  transform: translateY(16px) scale(0.96);
  pointer-events: none;
  display: none;
}