/* Next/Prev Project nav */
.project-navigation {
  display: flex;
  justify-content: space-between;
  padding-top: 15px;
  margin-top: auto;
  border-top: 1px solid #ddd;
}

.project-nav-button {
  background: transparent;
  border: 1px solid #ddd;
  padding: 8px 15px;
  border-radius: 4px;
  font-family: var(--font-secondary);
  font-size: 14px;
  color: #555;
  cursor: pointer;
  transition: all 0.2s ease;
}

.project-nav-button:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* Keyboard Help */
.keyboard-help {
  display: inline-block;
  font-size: 13px;
  color: #666;
  background: #f0f0f0;
  border-radius: 4px;
  padding: 8px 12px;
  margin-top: 15px;
}

.keyboard-help span {
  font-weight: 600;
}


/* Scroll to Top Button */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  z-index: 999;
  transition: opacity 0.3s ease, transform 0.3s ease;
  opacity: 0;
  pointer-events: none;
}

.scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.scroll-top:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
}