/* # dates timeline
--------------------------------------------------------------*/ 
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  }
  
  body {
    background-color: #f0f8ff; /* Light blue background */
    color: #333;
    padding: 40px 20px;
  }
  
  .container {
    max-width: 900px;
    margin: 0 auto;
  }
  
  header {
    text-align: center;
    margin-bottom: 50px;
  }
  
  h1 {
    font-size: 32px;
    color: #0056b3; /* Darker blue for headings */
    margin-bottom: 10px;
  }
  
  .venue {
    font-size: 18px;
    color: #4682b4; /* Steel blue for secondary text */
    margin-bottom: 5px;
  }
  
  .timeline {
    position: relative;
    margin: 50px 0;
  }
  
  .timeline::before {
    content: '';
    position: absolute;
    width: 6px;
    background-color: #1e90ff; /* Dodger blue for timeline */
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
    border-radius: 5px;
  }
  
  .timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.5s ease;
  }
  
  .timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
  }
  
  .timeline-item:nth-child(odd) {
    left: 0;
  }
  
  .timeline-item:nth-child(even) {
    left: 50%;
    transform: translateX(50px);
  }
  
  .timeline-item:nth-child(even).visible {
    transform: translateX(0);
  }
  
  .timeline-content {
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(30, 144, 255, 0.2); /* Blue shadow */
    position: relative;
    transition: all 0.3s ease;
    border-left: 4px solid #1e90ff; /* Dodger blue border */
    cursor: pointer;
  }
  
  .timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(30, 144, 255, 0.5); /* Enhanced blue shadow on hover */
    background-color: #f0f8ff; /* Light blue background on hover */
    border-left: 8px solid #1e90ff; /* Thicker border on hover */
  }
  
  .timeline-date {
    display: block;
    font-weight: bold;
    margin-bottom: 10px;
    color: #1e90ff; /* Dodger blue for dates */
    font-size: 18px;
    transition: all 0.3s ease;
  }
  
  .timeline-content:hover .timeline-date {
    color: #0056b3; /* Darker blue for dates on hover */
    transform: scale(1.05); /* Slightly increase the size on hover */
  }
  
  .timeline-title {
    font-size: 18px;
    margin-bottom: 5px;
    color: #0056b3; /* Darker blue for titles */
    transition: all 0.3s ease;
  }
  
  .timeline-content:hover .timeline-title {
    color: #1e90ff; /* Lighter blue for titles on hover */
  }
  
  .timeline-item:nth-child(odd) .timeline-content::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    right: -50px;
    background-color: white;
    border: 4px solid #1e90ff; /* Dodger blue border */
    top: 20px;
    border-radius: 50%;
    z-index: 1;
    transition: all 0.3s ease;
  }
  
  .timeline-item:nth-child(even) .timeline-content::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: -50px;
    background-color: white;
    border: 4px solid #1e90ff; /* Dodger blue border */
    top: 20px;
    border-radius: 50%;
    z-index: 1;
    transition: all 0.3s ease;
  }
  
  .timeline-item:nth-child(odd) .timeline-content:hover::after,
  .timeline-item:nth-child(even) .timeline-content:hover::after {
    background-color: #1e90ff; /* Fill circle on hover */
    transform: scale(1.2); /* Make circle bigger on hover */
  }
  
  .conference-highlight {
    background-color: #4169e1; /* Royal blue for highlight */
    color: white;
    border-left: 4px solid #87cefa; /* Light sky blue accent */
  }
  
  .conference-highlight .timeline-date {
    color: #87cefa; /* Light sky blue for highlighted date */
  }
  
  .conference-highlight:hover {
    background-color: #5a7af0; /* Lighter royal blue on hover */
    border-left: 8px solid #b0e0ff; /* Lighter accent on hover */
  }
  
  .conference-highlight:hover .timeline-title {
    color: white; /* Keep white text on hover */
  }
  
  .days-remaining {
    display: inline-block;
    padding: 5px 10px;
    background-color: #87cefa; /* Light sky blue for countdown */
    color: #0056b3; /* Darker blue text for contrast */
    border-radius: 15px;
    font-size: 14px;
    margin-top: 10px;
    transition: all 0.3s ease;
  }
  
  .timeline-content:hover .days-remaining {
    background-color: #1e90ff; /* Darker blue on hover */
    color: white;
    transform: scale(1.05);
  }
  
  .conference-highlight:hover .days-remaining {
    background-color: #b0e0ff; /* Lighter blue for countdown on hover */
    color: #0056b3;
  }
  
  footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px 0;
    color: #4682b4; /* Steel blue for footer text */
  }
  
  @media screen and (max-width: 768px) {
    .timeline::before {
        left: 40px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 20px;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-item:nth-child(odd) .timeline-content::after,
    .timeline-item:nth-child(even) .timeline-content::after {
        left: -36px;
        top: 20px;
    }
  }