/**
 * Page Loader Component - Reusable across all pages
 * Version: 2.0.0
 * Description: Glassmorphism page loading overlay with modern spinner
 */

/* ====================== PAGE LOADER OVERLAY - GLASSMORPHISM ====================== */
/* Overlay with backdrop filter */
.mkt192-page-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  backdrop-filter: blur(12px) saturate(180%);
  z-index: 9999999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mkt192-page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Glass container with backdrop-filter */
.mkt192-page-loader-container {
  background: rgba(255, 255, 255, 0.15);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 24px;
  padding: 48px 56px;
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  animation: mkt192-fade-in-scale 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform-origin: center;
  min-width: 200px;
  max-width: 90%;
}

/* Spinner wrapper với 3 vòng tròn */
.mkt192-page-loader-spinner {
  position: relative;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Outer rotating ring */
.mkt192-page-loader-spinner::before {
  content: '' !important;
  position: absolute;
  width: 100%;
  height: 100%;
  border: 4px solid transparent;
  border-top-color: rgba(255, 255, 255, 0.9);
  border-right-color: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  animation: mkt192-spin 1s linear infinite !important;
}

/* Inner pulsing circle */
.mkt192-page-loader-spinner::after {
  content: '';
  position: absolute;
  width: 48px;
  height: 48px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  animation: mkt192-pulse-scale 1.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

/* Center icon */
.mkt192-spinner-inner {
  position: relative;
  z-index: 2;
  width: 28px;
  height: 28px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.mkt192-spinner-inner::before {
  content: '' !important;
  width: 16px;
  height: 16px;
  border: 3px solid transparent;
  border-top-color: #667eea;
  border-right-color: #667eea;
  border-radius: 50%;
  animation: mkt192-spin 0.6s linear infinite !important;
}

/* Loading Text - giữ nguyên các dòng text hiển thị */
.mkt192-page-loader-text {
  font-size: 16px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  text-align: center;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  display: block;
  width: 100%;
}

.mkt192-page-loader-text::after {
  content: '';
  animation: mkt192-loading-dots 1.4s steps(4, end) infinite;
}

/* Subtitle Text */
.mkt192-page-loader-subtitle {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  line-height: 1.5;
  letter-spacing: 0.3px;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  display: block;
  width: 100%;
}

/* Animations */
@keyframes mkt192-spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes mkt192-loading-dots {
  0%,
  20% {
    content: '';
  }
  40% {
    content: '.';
  }
  60% {
    content: '..';
  }
  80%,
  100% {
    content: '...';
  }
}

@keyframes mkt192-fade-in-scale {
  0% {
    opacity: 0;
    transform: scale(0.85) translateY(10px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes mkt192-pulse-scale {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.15);
    opacity: 0.3;
  }
}

/* ====================== DARK MODE SUPPORT ====================== */
body.mkt192-dark .mkt192-page-loader {
  background: rgba(0, 0, 0, 0.6);
}

body.mkt192-dark .mkt192-page-loader-container {
  background: rgba(31, 41, 55, 0.25);
  border-color: rgba(255, 255, 255, 0.15);
}

body.mkt192-dark .mkt192-spinner-inner {
  background: rgba(31, 41, 55, 0.95);
}

body.mkt192-dark .mkt192-spinner-inner::before {
  border-top-color: #60a5fa;
  border-right-color: #60a5fa;
}

/* ====================== MOBILE RESPONSIVE ====================== */
@media (max-width: 768px) {
  .mkt192-page-loader-container {
    padding: 40px 48px;
    border-radius: 20px;
  }

  .mkt192-page-loader-spinner {
    width: 56px;
    height: 56px;
  }

  .mkt192-page-loader-text {
    font-size: 14px;
  }

  .mkt192-page-loader-subtitle {
    font-size: 12px;
    padding: 0 20px;
  }
}

/* ====================== ACCESSIBILITY ====================== */
.mkt192-page-loader[aria-hidden='true'] {
  display: none;
}