/* ============================================
   PRELOADER - SPLIT SHUTTER DESIGN
   ============================================ */
body {
  overflow: hidden; 
}

body.loaded {
  overflow-x: hidden;
  overflow-y: auto;
}

#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 99999;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Vertical Shutters */
.preloader-shutter-left,
.preloader-shutter-right {
  position: absolute;
  top: 0;
  height: 100%;
  width: 50.5%; /* Slightly overlap to avoid gap */
  background: #020912;
  z-index: 1;
  transition: transform 0.7s cubic-bezier(0.85, 0, 0.15, 1);
  will-change: transform;
}

.preloader-shutter-left {
  left: 0;
  transform: translateX(0);
}

.preloader-shutter-right {
  right: 0;
  transform: translateX(0);
}

/* Background glowing orb for a premium visual touch */
#preloader::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(230, 0, 40, 0.15) 0%, rgba(0, 61, 124, 0.25) 30%, rgba(0, 0, 0, 0) 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  pointer-events: none;
  animation: pulseGlow 4s ease-in-out infinite alternate;
  transition: opacity 0.3s ease;
}

.loader-content {
  text-align: center;
  position: relative;
  z-index: 3;
  transition: opacity 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: opacity, transform;
}

.loader-logo {
  margin-bottom: 40px;
  opacity: 0;
  transform: scale(0.92) translateY(20px);
  animation: logoPremiumReveal 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.loader-logo img {
  max-width: 280px;
  filter: drop-shadow(0 12px 24px rgba(0, 61, 124, 0.4));
  height: auto;
}

/* High-tech orbit ring loading spinner */
.loader-spinner-wrap {
  position: relative;
  width: 70px;
  height: 70px;
  margin: 0 auto;
}

.loader-spinner {
  width: 100%;
  height: 100%;
  border: 3px solid rgba(255, 255, 255, 0.05);
  border-top-color: #e60028; /* Crimson Red */
  border-bottom-color: #003d7c; /* Brand Blue */
  border-radius: 50%;
  animation: spinOrbit 1.2s cubic-bezier(0.5, 0.1, 0.5, 0.9) infinite;
}

/* Spinner outer pulsing ring */
.loader-spinner-wrap::after {
  content: '';
  position: absolute;
  inset: -10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  animation: ringPulse 2s infinite ease-out;
}

/* Shutter Trigger Actions */
body.loaded #preloader::before {
  opacity: 0 !important;
  transition: none !important;
}

body.loaded .loader-content {
  opacity: 0;
  transform: scale(0.95) translateY(-20px);
}

body.loaded .loader-logo img {
  filter: none !important; /* Instantly strip drop shadow */
}

body.loaded .loader-spinner-wrap::after {
  animation: none !important; /* Stop pulsing ring */
  opacity: 0 !important;
}

body.loaded .preloader-shutter-left {
  transform: translateX(-100%);
  transition-delay: 0.1s;
}

body.loaded .preloader-shutter-right {
  transform: translateX(100%);
  transition-delay: 0.1s;
}

/* Premium Animations */
@keyframes logoPremiumReveal {
  to {
      opacity: 1;
      transform: scale(1) translateY(0);
  }
}

@keyframes spinOrbit {
  to { transform: rotate(360deg); }
}

@keyframes ringPulse {
  0% { transform: scale(0.9); opacity: 1; }
  100% { transform: scale(1.3); opacity: 0; }
}

@keyframes pulseGlow {
  0% {
    transform: translate(-50%, -50%) scale(0.85);
    opacity: 0.8;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.15);
    opacity: 1;
  }
}