/* ============================================
   Animations
   ============================================ */

/* --- Page Load: Hero Animations --- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes expandWidth {
  from {
    width: 0;
  }
  to {
    width: 48px;
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(1.4);
  }
}

.hero__badge      { animation: fadeUp 0.6s ease-out 0s both; }
.hero__name       { animation: fadeUp 0.6s ease-out 0.1s both; }
.hero__title      { animation: fadeUp 0.6s ease-out 0.2s both; }
.hero__divider    { animation: expandWidth 0.4s ease-out 0.3s both; }
.hero__summary    { animation: fadeUp 0.6s ease-out 0.4s both; }
.hero__social     { animation: fadeUp 0.6s ease-out 0.5s both; }
.hero__scroll     { animation: fadeUp 0.6s ease-out 0.6s both; }

.hero__scroll-icon {
  animation: bounce 2s ease-in-out infinite;
}

/* --- Scroll Reveal --- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Timeline-specific slide directions */
.timeline__item--left[data-reveal] {
  transform: translateX(-30px);
  opacity: 0;
}

.timeline__item--right[data-reveal] {
  transform: translateX(30px);
  opacity: 0;
}

.timeline__item--left[data-reveal].revealed,
.timeline__item--right[data-reveal].revealed {
  transform: translateX(0);
  opacity: 1;
}

/* Staggered grid reveal */
[data-reveal-stagger] > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

[data-reveal-stagger].revealed > *:nth-child(1) { transition-delay: 0s; }
[data-reveal-stagger].revealed > *:nth-child(2) { transition-delay: 0.1s; }
[data-reveal-stagger].revealed > *:nth-child(3) { transition-delay: 0.15s; }
[data-reveal-stagger].revealed > *:nth-child(4) { transition-delay: 0.2s; }
[data-reveal-stagger].revealed > *:nth-child(5) { transition-delay: 0.25s; }
[data-reveal-stagger].revealed > *:nth-child(6) { transition-delay: 0.3s; }

[data-reveal-stagger].revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* --- Hover Effects --- */
.card-hover {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--color-card-hover-shadow);
}

/* --- Link Underline Animation --- */
.animated-link {
  background-image: linear-gradient(var(--color-accent), var(--color-accent));
  background-size: 0% 1px;
  background-position: left bottom;
  background-repeat: no-repeat;
  transition: background-size var(--transition-base);
}

.animated-link:hover {
  background-size: 100% 1px;
}

/* --- Language Bar Animation --- */
.language-bar__fill {
  width: 0;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.language-bar.revealed .language-bar__fill {
  width: var(--proficiency);
}

/* --- Timeline Node Pulse --- */
.timeline__node--active::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal],
  [data-reveal-stagger] > * {
    opacity: 1;
    transform: none;
  }

  .language-bar__fill {
    transition-duration: 0.01ms !important;
  }
}