/* Advanced Fluent Loading System */
.fluent-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.6s cubic-bezier(0.8, 0, 0.2, 1), backdrop-filter 0.6s ease;
  font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
}

[data-theme="dark"] .fluent-loader {
  background-color: rgba(32, 32, 32, 0.96);
}

.fluent-loader.hidden {
  opacity: 0;
  pointer-events: none;
  backdrop-filter: blur(0);
}

.fluent-loader-container {
  width: 100%;
  max-width: 480px;
  padding: 40px;
  text-align: center;
  animation: fluent-fadeIn 0.4s ease-out;
}

.fluent-loader-progress {
  position: relative;
  height: 4px;
  background-color: rgba(0, 120, 212, 0.2);
  border-radius: 2px;
  margin-bottom: 24px;
  overflow: hidden;
}

.fluent-progress-track {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: rgba(0, 120, 212, 0.1);
}

.fluent-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0;
  background-color: #0078D4;
  border-radius: 2px;
  transition: width 0.4s cubic-bezier(0.65, 0, 0.35, 1);
}

.fluent-progress-percent {
  position: absolute;
  top: -28px;
  right: 0;
  font-size: 12px;
  font-weight: 600;
  color: #0078D4;
}

.fluent-loader-status {
  font-size: 16px;
  font-weight: 600;
  color: #323130;
  margin-bottom: 24px;
  min-height: 24px;
}

[data-theme="dark"] .fluent-loader-status {
  color: #FFFFFF;
}

.fluent-loader-details {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.fluent-loader-component {
  font-size: 14px;
  color: #605E5C;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

[data-theme="dark"] .fluent-loader-component {
  color: #A19F9D;
}

.fluent-loader-component.active {
  opacity: 1;
  transform: translateY(0);
}

/* Animations */
@keyframes fluent-fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fluent-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes fluent-progress-pulse {
  0% { opacity: 1; }
  50% { opacity: 0.5; }
  100% { opacity: 1; }
}