/* ============================================
   ANIMATIONS & TRANSITIONS
   Subtle, refined, purposeful
   ============================================ */

/* Scroll-triggered reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.visible > *:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0.05s; }
.stagger-children.visible > *:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 0.1s; }
.stagger-children.visible > *:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 0.15s; }
.stagger-children.visible > *:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 0.2s; }
.stagger-children.visible > *:nth-child(5) { opacity: 1; transform: translateY(0); transition-delay: 0.25s; }
.stagger-children.visible > *:nth-child(6) { opacity: 1; transform: translateY(0); transition-delay: 0.3s; }

/* Counter animation */
.counter {
  font-variant-numeric: tabular-nums;
}

/* Fade in from different directions */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-left {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-right {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale in */
.scale-in {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Hero entrance */
.hero-entrance .hero-text > * {
  opacity: 0;
  transform: translateY(20px);
}

.hero-entrance.loaded .hero-text > *:nth-child(1) { animation: heroFadeIn 0.6s ease 0.1s forwards; }
.hero-entrance.loaded .hero-text > *:nth-child(2) { animation: heroFadeIn 0.6s ease 0.2s forwards; }
.hero-entrance.loaded .hero-text > *:nth-child(3) { animation: heroFadeIn 0.6s ease 0.3s forwards; }
.hero-entrance.loaded .hero-text > *:nth-child(4) { animation: heroFadeIn 0.6s ease 0.4s forwards; }
.hero-entrance.loaded .hero-text > *:nth-child(5) { animation: heroFadeIn 0.6s ease 0.5s forwards; }
.hero-entrance.loaded .hero-text > *:nth-child(6) { animation: heroFadeIn 0.6s ease 0.6s forwards; }

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Timeline dot pulse */
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(179, 30, 33, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(179, 30, 33, 0); }
  100% { box-shadow: 0 0 0 0 rgba(179, 30, 33, 0); }
}

.timeline-dot.active {
  animation: pulse 2s infinite;
}

/* Smooth hover lift */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

/* Button shine effect */
@keyframes shine {
  0% { left: -100%; }
  100% { left: 200%; }
}

/* Journey line draw */
.journey-line-fill.animate {
  height: 100%;
}

/* Skill bar fill */
.skill-bar-fill.visible {
  width: var(--skill-width);
}

.lang-bar-fill.visible {
  width: var(--lang-width);
}

/* Card entrance stagger */
.card-grid > .card:nth-child(1) { transition-delay: 0s; }
.card-grid > .card:nth-child(2) { transition-delay: 0.1s; }
.card-grid > .card:nth-child(3) { transition-delay: 0.2s; }
.card-grid > .card:nth-child(4) { transition-delay: 0.3s; }
.card-grid > .card:nth-child(5) { transition-delay: 0.4s; }
.card-grid > .card:nth-child(6) { transition-delay: 0.5s; }

/* Subtle background gradient shift on hover for cards */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(179, 30, 33, 0.03), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.card:hover::before {
  opacity: 1;
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--brick-red);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal, .fade-up, .fade-left, .fade-right, .scale-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
  
  .hero-entrance .hero-text > * {
    opacity: 1;
    transform: none;
    animation: none;
  }
  
  .timeline-dot.active {
    animation: none;
  }
  
  .skill-bar-fill, .lang-bar-fill {
    transition: none;
  }
}