/**
 * QubikStack - Animations & Preloader CSS
 * Hardware-accelerated transitions, preloader, keyframes, and reduced-motion rules
 */

/* ==========================================================================
   Page Preloader Overlay
   ========================================================================== */
.preloader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100dvh;
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  z-index: var(--z-preloader);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.preloader-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Preloader logo / animated wrapper */
.preloader-cube-wrapper {
  position: relative;
  width: auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  animation: preloaderCubePulse 2s ease-in-out infinite;
}

/* Logo image inside the preloader */
.preloader-logo-img {
  height: 64px;
  width: auto;
  max-width: none;
  flex-shrink: 0;
  object-fit: contain;
  display: block;
}

/* Keep old .preloader-svg rule in case of fallback */
.preloader-svg {
  width: auto;
  height: 100%;
}

@media (max-width: 480px) {
  .preloader-cube-wrapper {
    height: 48px;
  }
  .preloader-logo-img {
    height: 48px;
  }
}

@keyframes preloaderCubePulse {
  0%, 100% {
    transform: translateY(0) scale(1);
    filter: drop-shadow(0 0 10px rgba(var(--color-primary-rgb), 0.3));
  }
  50% {
    transform: translateY(-8px) scale(1.04);
    filter: drop-shadow(0 0 25px rgba(var(--color-primary-rgb), 0.6));
  }
}

.preloader-progress-track {
  width: 140px;
  height: 3px;
  background: var(--border-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.preloader-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: var(--grad-primary);
  border-radius: var(--radius-full);
  animation: preloaderLoad 1.2s ease-in-out forwards;
}

@keyframes preloaderLoad {
  0% { width: 0%; }
  60% { width: 75%; }
  100% { width: 100%; }
}


/* ==========================================================================
   Keyframes
   ========================================================================== */
@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes marqueeScrollReverse {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

@keyframes floatSlow {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    opacity: 0.4;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

/* Fade In Up Reveal classes for GSAP / Fallback */
.reveal-fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-fade-up.is-in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Prefers-Reduced-Motion Support (Strict Accessibility Compliance)
   ========================================================================== */
@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;
  }

  .marquee-track,
  .marquee-track-reverse {
    animation: none !important;
    overflow-x: auto;
  }

  .hero-floating-card-1,
  .hero-floating-card-2 {
    animation: none !important;
  }

  .reveal-fade-up {
    opacity: 1 !important;
    transform: none !important;
  }

  .card:hover {
    transform: none !important;
  }

  .preloader-overlay {
    display: none !important;
  }
}