/* ============================================================
   ROSHANI PUBLIC SCHOOL — LUXURY PRELOADER SYSTEM
   Premium modern loading page overlay & animation
   ============================================================ */

/* Lock body scrolling during load */
body.rps-loading {
  overflow: hidden !important;
  touch-action: none;
}

/* Base Preloader Overlay */
#rps-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 999999;
  background-color: #0B1526;
  background-image: 
    radial-gradient(circle at 20% 20%, rgba(185, 28, 92, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(217, 119, 6, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(26, 54, 93, 0.4) 0%, transparent 60%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.6s ease;
  will-change: opacity, transform, filter;
}

/* Exit Loaded State */
#rps-loader.is-loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: scale(1.04);
  filter: blur(6px);
}

/* Preloader Card Container */
.rps-loader__card {
  position: relative;
  width: 90%;
  max-width: 440px;
  background: rgba(15, 36, 64, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  padding: 44px 32px 40px;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5),
              0 0 40px rgba(185, 28, 92, 0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
}

/* Background Shimmer Line */
.rps-loader__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #B91C5C, #D97706, #B91C5C);
  background-size: 200% 100%;
  animation: rpsShimmer 3s linear infinite;
}

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

/* Visual Spinner & Logo Wrapper */
.rps-loader__visual {
  position: relative;
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

/* SVG Spinner Rings */
.rps-loader__rings {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.rps-loader__ring-outer {
  transform-origin: center;
  animation: rpsSpinClockwise 3s linear infinite;
}

.rps-loader__ring-inner {
  transform-origin: center;
  animation: rpsSpinCounter 2s linear infinite;
}

@keyframes rpsSpinClockwise {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes rpsSpinCounter {
  0% { transform: rotate(360deg); }
  100% { transform: rotate(0deg); }
}

/* Logo Frame */
.rps-loader__logo-box {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: #FFFFFF;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 25px rgba(217, 119, 6, 0.3),
              inset 0 0 10px rgba(0, 0, 0, 0.05);
  position: relative;
  z-index: 2;
  animation: rpsPulseGlow 2.5s ease-in-out infinite alternate;
}

.rps-loader__logo {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
}

@keyframes rpsPulseGlow {
  0% {
    box-shadow: 0 0 15px rgba(185, 28, 92, 0.3), 0 0 30px rgba(217, 119, 6, 0.2);
    transform: scale(0.98);
  }
  100% {
    box-shadow: 0 0 25px rgba(185, 28, 92, 0.6), 0 0 45px rgba(217, 119, 6, 0.4);
    transform: scale(1.03);
  }
}

/* School Title & Subtitle */
.rps-loader__title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.04em;
  margin: 0 0 6px 0;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.rps-loader__subtitle {
  font-family: 'Inter', sans-serif;
  font-size: 0.725rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #D97706;
  margin-bottom: 20px;
}

/* Quote Rotator Ticker */
.rps-loader__quote-wrap {
  min-height: 24px;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.rps-loader__quote {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 400;
  color: #CBD5E1;
  font-style: italic;
  opacity: 1;
  transition: opacity 0.35s ease, transform 0.35s ease;
  transform: translateY(0);
}

.rps-loader__quote.is-changing {
  opacity: 0;
  transform: translateY(-6px);
}

/* Progress Track & Bar */
.rps-loader__progress-box {
  width: 100%;
}

.rps-loader__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  color: #94A3B8;
  margin-bottom: 8px;
  font-weight: 500;
}

.rps-loader__status-text {
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rps-loader__percent {
  font-weight: 700;
  color: #FFFFFF;
  font-variant-numeric: tabular-nums;
}

.rps-loader__bar-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}

.rps-loader__bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #B91C5C 0%, #D97706 100%);
  border-radius: 99px;
  transition: width 0.18s linear;
  box-shadow: 0 0 12px rgba(217, 119, 6, 0.6);
  position: relative;
}

.rps-loader__bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 12px;
  background: #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 0 8px #FFFFFF;
  opacity: 0.8;
}

/* Reduced Motion support */
@media (prefers-reduced-motion: reduce) {
  #rps-loader {
    transition: opacity 0.2s ease, visibility 0.2s ease;
  }
  .rps-loader__ring-outer,
  .rps-loader__ring-inner,
  .rps-loader__logo-box,
  .rps-loader__card::before {
    animation: none !important;
  }
}

/* Responsive adjustments */
@media (max-width: 480px) {
  .rps-loader__card {
    padding: 32px 24px 32px;
    border-radius: 20px;
  }
  .rps-loader__visual {
    width: 100px;
    height: 100px;
    margin-bottom: 18px;
  }
  .rps-loader__logo-box {
    width: 64px;
    height: 64px;
  }
  .rps-loader__title {
    font-size: 1.25rem;
  }
  .rps-loader__subtitle {
    font-size: 0.675rem;
  }
}