/* Kiểu dáng của khung loading toàn cục */
#global-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
  }
  
  /* Kiểu dáng vòng tròn tải */
  .loader-circle {
    position: relative;
    width: 100px;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .loader-circle svg {
    transform: rotate(-90deg);
  }
  
  .loader-circle .circle-bg {
    fill: none;
    stroke: #f3f3f3;
    stroke-width: 3;
  }
  
  .loader-circle .circle {
    fill: none;
    stroke: #4db8ff;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-dasharray: 0, 100;
    transition: stroke-dasharray 0.4s;
  }
  
  .loader-circle .percentage {
    position: absolute;
    font-size: 18px;
    color: #fff;
  }