/* ============================================
   ENHANCED IFRAME LOADING
   Blurred preview with modern loading state
   ============================================ */

.responsive-iframe-container {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: calc(100vh - 70px);
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  margin-top: 70px;
  padding-top: 10px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, sans-serif;
}

.iframe-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  -webkit-overflow-scrolling: touch;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  transition: opacity 0.5s ease;
}

/* Blurred preview effect while loading */
.iframe-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(135deg, rgba(248, 249, 250, 0.9) 0%, rgba(233, 236, 239, 0.9) 100%),
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 10px,
      rgba(0, 0, 0, 0.02) 10px,
      rgba(0, 0, 0, 0.02) 20px
    );
  z-index: 0;
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.6s ease;
}

.iframe-wrapper.loaded::before {
  opacity: 0;
}

iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: transparent;
  opacity: 0;
  filter: blur(20px);
  transform: scale(1.02);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

iframe.loaded {
  opacity: 1;
  filter: blur(0);
  transform: scale(1);
}

/* Enhanced Loading Overlay with Glassmorphism */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  border-radius: 16px;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

/* Modern Loading Spinner */
.loading-overlay .loading-spinner {
  width: 70px;
  height: 70px;
  position: relative;
  margin-bottom: 2rem;
}

.loading-overlay .loading-spinner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 4px solid rgba(212, 175, 55, 0.2);
  border-radius: 50%;
  border-top-color: #D4AF37;
  animation: spin 1s linear infinite;
}

.loading-overlay .loading-spinner::after {
  content: '';
  position: absolute;
  top: 10px;
  left: 10px;
  width: calc(100% - 20px);
  height: calc(100% - 20px);
  border: 3px solid rgba(243, 156, 18, 0.3);
  border-radius: 50%;
  border-bottom-color: #f39c12;
  animation: spin 1.5s linear infinite reverse;
}

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

/* Loading Message */
.loading-overlay p {
  color: #2c3e50;
  font-size: 1.15rem;
  font-weight: 600;
  text-align: center;
  margin: 0;
  max-width: 350px;
  line-height: 1.6;
  padding: 0 1rem;
}

/* Loading Progress Hint */
.loading-overlay .loading-hint {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: rgba(44, 62, 80, 0.7);
  font-weight: 400;
}

/* Pulse animation for loading text */
.loading-overlay p::after {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  margin-left: 0.5rem;
  background: #D4AF37;
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.5);
  }
}

/* Click-to-load overlay */
.click-to-load-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 999;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.click-to-load-overlay:hover {
  background: rgba(255, 255, 255, 0.95);
}

.click-to-load-btn {
  background: linear-gradient(135deg, #D4AF37 0%, #f39c12 100%);
  color: white;
  border: none;
  padding: 1.25rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 14px;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  margin-bottom: 1rem;
}

.click-to-load-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 32px rgba(212, 175, 55, 0.4);
}

.click-to-load-btn:active {
  transform: translateY(-1px) scale(1);
}

.click-to-load-hint {
  color: rgba(44, 62, 80, 0.7);
  font-size: 0.95rem;
  max-width: 300px;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .responsive-iframe-container {
    height: calc(100vh - 65px);
    margin-top: 65px;
  }

  .iframe-wrapper {
    border-radius: 12px;
  }

  .loading-overlay .loading-spinner {
    width: 60px;
    height: 60px;
  }

  .loading-overlay p {
    font-size: 1.05rem;
  }

  .click-to-load-btn {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .loading-overlay .loading-spinner {
    width: 50px;
    height: 50px;
  }

  .loading-overlay p {
    font-size: 1rem;
  }

  .click-to-load-btn {
    padding: 0.875rem 1.75rem;
    font-size: 0.95rem;
  }
}

/* ============================================
   ACCESSIBILITY - REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  /* Disable spinner animations */
  .loading-overlay .loading-spinner::before,
  .loading-overlay .loading-spinner::after {
    animation: none !important;
  }

  /* Disable pulse animation */
  .loading-overlay p::after {
    animation: none !important;
    opacity: 1 !important;
  }

  /* Instant iframe visibility */
  iframe {
    transition: all 0.01ms !important;
    filter: none !important;
    transform: none !important;
  }

  iframe.loaded {
    filter: none !important;
    transform: none !important;
  }

  /* Keep buttons stable */
  .click-to-load-btn:hover {
    transform: none !important;
  }
}