/* ============================================
   Shared Gamification Styles
   ============================================ */

/* ---- Achievement List Items ---- */
#achievement-list li,
#achievement-list-mobile li {
  padding: 0.5rem 0.75rem;
  border-radius: 0.75rem;
  transition: all .25s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  background: transparent;
}

#achievement-list li.unlocked,
#achievement-list-mobile li.unlocked {
  background: rgba(36,145,182,0.12);
  color: var(--accent);
  font-weight: 600;
}

#achievement-list li .trophy,
#achievement-list-mobile li .trophy {
  opacity: 0.3;
  transition: opacity .25s ease;
}

#achievement-list li.unlocked .trophy,
#achievement-list-mobile li.unlocked .trophy {
  opacity: 1;
}

/* ---- Sidebar Visibility ---- */
.sidebar-hidden {
  opacity: 0;
  transform: translateX(20px);
  pointer-events: none;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.sidebar-visible {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

/* ---- Mobile Achievement Button Visibility ---- */
.mobile-btn-hidden {
  opacity: 0;
  transform: translateY(20px) scale(0.8);
  pointer-events: none;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.mobile-btn-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* ---- Mobile Drawer ---- */
#mobile-achievements-drawer.open {
  transform: translateY(0);
}

/* ---- Nav Contact Highlight ---- */
.nav-link.nav-highlight {
  color: var(--accent) !important;
  position: relative;
  font-weight: 600;
}
.nav-link.nav-highlight::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: navPulse 2s ease-in-out infinite;
}

/* ---- Preloader ---- */
#preloader {
  pointer-events: all;
}
#preloader.hidden {
  opacity: 0;
  pointer-events: none;
}

/* ---- Timeline Line ---- */
.timeline-line {
  transform-origin: top;
  transform: scaleY(0);
}