.loader {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: inline-block;
  position: relative;
  border: 10px solid;
  border-color: rgba(255, 255, 255, 0.15) rgba(255, 255, 255, 0.25) rgba(255, 255, 255, 0.35) rgba(255, 255, 255, 0.5);
  box-sizing: border-box;
  animation: rotation 1s linear infinite;
}

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

/* Loader container for centering */
.loader-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
  width: 100%;
}

/* Small loader variant */
.loader-small {
  width: 20px;
  height: 20px;
  border-width: 3px;
  flex-shrink: 0;
}

/* Dark mode support */
body:not(.dark-mode) .loader {
  border-color: rgba(0, 0, 0, 0.15) rgba(0, 0, 0, 0.25) rgba(0, 0, 0, 0.35) rgba(0, 0, 0, 0.5);
}