.loader{
   
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    z-index: 9999;
    background: url('loading.gif') 50% 50% no-repeat #fff;
    opacity: .8;
}

.event-tooltip {
    position: absolute;
    z-index: 9999;
    background: white;
    border: 1px solid #ccc;
    border-radius: 6px;
    width: 260px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    font-family: Arial, sans-serif;
    padding: 10px;
    display: none;
  }
  
  .tooltip-header {
    font-weight: bold;
    background: #00aaff;
    color: white;
    padding: 5px 10px;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .close-tooltip {
    cursor: pointer;
    font-weight: bold;
  }
  
  .tooltip-body {
    padding: 10px;
  }
  
  .tooltip-actions a {
    text-decoration: none;
    color: #007bff;
    margin-right: 5px;
    cursor: pointer;
  }

  #calendar {
    position: relative;
  }

  .event-tooltip::before {
    content: "";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 0 10px 10px 10px;
    border-style: solid;
    border-color: transparent transparent #00aaff transparent;
  }

  /**
   * Dropzone styles
   */
  .drop-zone {
    border: 2px dashed #007bff;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    border-radius: 10px;
    margin-top: 15px;
    background-color: #f9f9f9;
  }
  .drop-zone.dragover {
    background-color: #e9f7fe;
  }
  .preview-area {
    display: flex;
    flex-wrap: wrap;
    margin-top: 10px;
    gap: 10px;
  }
  .preview-area img {
    max-width: 1000px;
    max-height: 1000px;
    border: 1px solid #ccc;
    border-radius: 5px;
    object-fit: cover;
  }