/* ==========================================================================
   AVINYA CARE FOUNDATION — Healthcare Website Preloader Design System
   Aesthetic: Trust, Compassion, Healing, & Vitality
   Performance: 60 FPS GPU-composited transforms, zero FOUC, accessible
   ========================================================================== */

#avinya-preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 999999;
  background-color: #0A0A0A;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.65s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}

#avinya-preloader.preloader-hidden {
  opacity: 0;
  visibility: hidden;
  transform: scale(1.025);
  pointer-events: none;
}

/* Ambient Radial Background Glows */
.preloader-ambient-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(244, 117, 40, 0.12) 0%, rgba(8, 127, 115, 0.08) 45%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  animation: preloaderAmbientBreath 4s ease-in-out infinite alternate;
}

/* Inner Centered Stage */
.preloader-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 2;
  padding: 1.5rem;
  max-width: 480px;
}

/* Concentric Expanding Aura Rings (Healing & Vitality Pulse) */
.preloader-emblem-cluster {
  position: relative;
  width: 150px;
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.75rem;
}

.preloader-pulse-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  pointer-events: none;
  will-change: transform, opacity;
}

.preloader-pulse-ring.ring-1 {
  width: 150px;
  height: 150px;
  border: 1.5px solid rgba(244, 117, 40, 0.45);
  box-shadow: 0 0 20px rgba(244, 117, 40, 0.2), inset 0 0 15px rgba(244, 117, 40, 0.1);
  animation: preloaderRingPulse 2.8s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

.preloader-pulse-ring.ring-2 {
  width: 190px;
  height: 190px;
  border: 1px solid rgba(8, 127, 115, 0.4);
  box-shadow: 0 0 25px rgba(8, 127, 115, 0.18);
  animation: preloaderRingPulse 2.8s cubic-bezier(0.215, 0.61, 0.355, 1) infinite 0.7s;
}

.preloader-pulse-ring.ring-3 {
  width: 230px;
  height: 230px;
  border: 1px solid rgba(102, 192, 36, 0.25);
  box-shadow: 0 0 30px rgba(102, 192, 36, 0.12);
  animation: preloaderRingPulse 2.8s cubic-bezier(0.215, 0.61, 0.355, 1) infinite 1.4s;
}

/* Emblem Container with Smooth Heartbeat Breathing */
.preloader-emblem-wrap {
  position: relative;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.01) 80%, transparent 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6), 0 0 24px rgba(244, 117, 40, 0.15);
  animation: preloaderHeartbeat 2.4s ease-in-out infinite;
  will-change: transform;
}

.preloader-logo-img {
  width: 96px;
  height: 96px;
  object-fit: contain;
  filter: drop-shadow(0 4px 14px rgba(0, 0, 0, 0.4));
  animation: preloaderLogoEntrance 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Brand Typography */
.preloader-typography {
  margin-bottom: 1.5rem;
  animation: preloaderFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.15s both;
}

.preloader-brand-title {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
}

.preloader-brand-title .brand-accent {
  color: #F47528;
}

.preloader-tagline {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: #A3A3A3;
  line-height: 1.4;
}

/* Vitality Pulse Progress Bar */
.preloader-progress-wrap {
  width: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  animation: preloaderFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.25s both;
}

.preloader-progress-track {
  position: relative;
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 99px;
  overflow: hidden;
}

.preloader-progress-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #F47528 0%, #087F73 50%, #66C024 100%);
  border-radius: 99px;
  box-shadow: 0 0 10px rgba(244, 117, 40, 0.6);
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: width;
}

.preloader-status-text {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #737373;
  transition: color 0.3s ease;
}

/* Keyframe Animations (Hardware-Accelerated) */
@keyframes preloaderLogoEntrance {
  0% {
    opacity: 0;
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes preloaderFadeUp {
  0% {
    opacity: 0;
    transform: translateY(8px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes preloaderHeartbeat {
  0%, 100% {
    transform: scale(1);
  }
  25% {
    transform: scale(1.028);
  }
  45% {
    transform: scale(0.992);
  }
  65% {
    transform: scale(1.018);
  }
}

@keyframes preloaderRingPulse {
  0% {
    transform: translate(-50%, -50%) scale(0.65);
    opacity: 0.85;
  }
  70% {
    transform: translate(-50%, -50%) scale(1.18);
    opacity: 0.15;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.35);
    opacity: 0;
  }
}

@keyframes preloaderAmbientBreath {
  0% {
    transform: scale(0.9);
    opacity: 0.7;
  }
  100% {
    transform: scale(1.15);
    opacity: 1;
  }
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  #avinya-preloader {
    transition: opacity 0.2s linear, visibility 0.2s linear;
  }
  .preloader-ambient-glow,
  .preloader-pulse-ring,
  .preloader-emblem-wrap,
  .preloader-logo-img,
  .preloader-typography,
  .preloader-progress-wrap {
    animation: none !important;
  }
  .preloader-pulse-ring {
    display: none;
  }
}

/* Responsive Scaling for Mobile */
@media (max-width: 480px) {
  .preloader-emblem-cluster {
    width: 125px;
    height: 125px;
    margin-bottom: 1.35rem;
  }
  .preloader-emblem-wrap {
    width: 96px;
    height: 96px;
  }
  .preloader-logo-img {
    width: 76px;
    height: 76px;
  }
  .preloader-brand-title {
    font-size: 1.15rem;
  }
  .preloader-tagline {
    font-size: 0.78rem;
    max-width: 280px;
  }
  .preloader-progress-wrap {
    width: 160px;
  }
}