body {
  background: #0a0e17;
}

#app-loader {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.loader-ring {
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 3px solid transparent;
  animation: loader-spin 1.5s linear infinite;
}

.loader-ring:nth-child(1) {
  border-top-color: #667eea;
  animation-duration: 1.5s;
  animation-direction: normal;
}

.loader-ring:nth-child(2) {
  width: 90px;
  height: 90px;
  border-right-color: #f093fb;
  animation-duration: 1.2s;
  animation-direction: reverse;
}

.loader-ring:nth-child(3) {
  width: 60px;
  height: 60px;
  border-bottom-color: #4facfe;
  animation-duration: 0.9s;
  animation-direction: normal;
}

.loader-core {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea, #764ba2);
  animation: loader-pulse 1.5s ease-in-out infinite;
  box-shadow: 0 0 20px rgba(102, 126, 234, 0.6), 0 0 40px rgba(102, 126, 234, 0.3);
}

.loader-text {
  position: absolute;
  bottom: -50px;
  left: 50%;
  transform: translateX(-50%);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  letter-spacing: 4px;
  color: #64748b;
  text-transform: uppercase;
  animation: loader-fade 2s ease-in-out infinite;
}

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

@keyframes loader-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

@keyframes loader-fade {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}