/* =====================================================
   LUBRICENTRO CARLOS PAZ — ANIMACIONES
   ===================================================== */

/* ===== KEYFRAMES ===== */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.4); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

@keyframes float-pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5); }
  50%       { box-shadow: 0 4px 32px rgba(37, 211, 102, 0.75); }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* ===== CLASES DE ANIMACIÓN HERO (al cargar) ===== */
.animate-fade-up {
  opacity: 0;
  animation: fade-up 0.7s ease forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.delay-4 { animation-delay: 0.6s; }

/* ===== SCROLL REVEAL (aplicado por JS) ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Delays para stagger en grids */
.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; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ===== HOVER EFFECTS ===== */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.3);
}

/* ===== SHIMMER (skeleton loading) ===== */
.shimmer {
  background: linear-gradient(
    90deg,
    var(--color-dark-2) 25%,
    var(--color-dark-3) 50%,
    var(--color-dark-2) 75%
  );
  background-size: 200% auto;
  animation: shimmer 1.5s linear infinite;
}

/* ===== NAVBAR scroll state ===== */
.navbar.scrolled {
  background: rgba(13, 13, 13, 0.98);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

/* ===== FAQ animación de apertura ===== */
.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
  overflow: hidden;
  padding: 0 1.5rem;
}

.faq-answer:not([hidden]) {
  grid-template-rows: 1fr;
  padding-bottom: 1.25rem;
}

.faq-answer > * {
  overflow: hidden;
}

/* ===== HERO BG parallax effect ===== */
@media (prefers-reduced-motion: no-preference) {
  .hero-bg-img {
    will-change: transform;
  }
}

/* ===== Respeta preferencias de movimiento reducido ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .animate-fade-up,
  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale {
    opacity: 1 !important;
    transform: none !important;
  }
}