/* ============================================
   ANIMACIONES Y EFECTOS
   Todas las @keyframes y clases de animación
============================================ */

/* Preloader */
#preloader {
  position: fixed;
  inset: 0;
  background: var(--dark);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; }

.loader-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: pulse 1.5s ease-in-out infinite;
  position: relative;
}
.loader-logo::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 0;
  height: 3px;
  width: 100%;
  background: var(--gradient);
  border-radius: 3px;
  animation: loadingBar 1.5s ease-in-out infinite;
}

/* Scroll Progress */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient);
  width: 0%;
  z-index: 9998;
  transition: width 0.1s ease;
  box-shadow: 0 0 10px var(--primary);
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   KEYFRAMES
============================================ */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes loadingBar {
  0% { transform: scaleX(0); transform-origin: left; }
  50% { transform: scaleX(1); transform-origin: left; }
  51% { transform: scaleX(1); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes blob {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(60px, -40px) scale(1.1); }
  66% { transform: translate(-40px, 30px) scale(0.95); }
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes floatMain {
  0%, 100% { transform: translate(-50%, -50%) rotate(-2deg); }
  50% { transform: translate(-50%, -54%) rotate(2deg); }
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-15px) rotate(1deg); }
}

@keyframes scrollWheel {
  0% { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, 14px); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ============================================
   ACCESIBILIDAD - REDUCED MOTION
============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}