/* ============================================================
   PROYECTON — Animations
   ============================================================ */

/* ── Fade-in on scroll (IntersectionObserver) ─────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal-stagger.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.15s; }
.reveal-stagger.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.25s; }
.reveal-stagger.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.35s; }
.reveal-stagger.visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.45s; }
.reveal-stagger.visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.55s; }

/* ── Hero text entrance ───────────────────────────────────── */
@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-tag    { animation: heroFadeUp 0.6s ease 0.2s both; }
.hero-title  { animation: heroFadeUp 0.7s ease 0.4s both; }
.hero-desc   { animation: heroFadeUp 0.7s ease 0.6s both; }
.hero-actions{ animation: heroFadeUp 0.7s ease 0.8s both; }

/* ── Stats counter ────────────────────────────────────────── */
@keyframes countUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.stat-item.visible .stat-number {
  animation: countUp 0.5s ease both;
}

/* ── Slide transition ─────────────────────────────────────── */
@keyframes slideIn {
  from { opacity: 0; transform: scale(1.04); }
  to   { opacity: 1; transform: scale(1); }
}
.hero-slide.active {
  animation: slideIn 1.2s ease both;
}

/* ── Card hover lift ──────────────────────────────────────── */
@keyframes cardPop {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.02); }
  100% { transform: scale(1); }
}

/* ── Pulse dot (active nav dot) ──────────────────────────── */
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,255,255,0.4); }
  50%       { box-shadow: 0 0 0 6px rgba(255,255,255,0); }
}
.hero-dot.active { animation: pulse 2s ease infinite; }

/* ── Number roll (stats) ─────────────────────────────────── */
@keyframes rollIn {
  from { opacity: 0; transform: rotateX(-60deg) translateY(-20px); }
  to   { opacity: 1; transform: rotateX(0) translateY(0); }
}

/* ── Underline wipe (section labels) ─────────────────────── */
.section-label::after {
  content: '';
  display: block;
  height: 2px;
  background: currentColor;
  width: 0;
  transition: width 0.5s ease 0.3s;
}
.section-label.visible::after { width: 100%; }

/* ── Overlay gradient on project cards ──────────────────────  */
@keyframes overlayIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── Loading shimmer (optional) ───────────────────────────── */
@keyframes shimmer {
  from { background-position: -400px 0; }
  to   { background-position: 400px 0; }
}
.shimmer {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 800px 100%;
  animation: shimmer 1.5s infinite;
}