.nav-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.section h2 {
    text-align: center;                
    font-size: 2rem;                   
    font-weight: bold;                 
    border-bottom: 3px solid #004f9f;  
    padding-bottom: 0.3rem;            
    margin: 2rem auto 1.5rem auto;     
    display: table;                    
}

.register-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: #1ca64d;
    color: white;
    text-decoration: none;
    font-weight: bold;
    border-radius: 5px;
    margin: 2rem auto;
    text-align: center;
}

.register-btn:hover {
    background-color: #158539;
}

.event-details {
    display: flex;
    justify-content: center;
    gap: 2rem;
    text-align: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.event-details div {
    flex: 1;
    min-width: 200px;
}

.event-details i {
    font-size: 2rem;
    color: #004f9f;
    margin-bottom: 0.5rem;
}

nav {
    background-color: #004f9f;
    padding: 0.5rem 1rem;
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 1rem;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 0.5rem 0;
}

nav a:hover {
    text-decoration: underline;
}
body {
    margin: 0;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: #ffffff;
    color: #333333;
    line-height: 1.6;
}

header {
    background-color: #004f9f; /* IEEE Blue */
    color: white;
    padding: 1rem 2rem;
    text-align: center;
}

header img {
    max-height: 100px;
    height: auto;
    width: auto;
    max-width: 80%; /* makes it responsive on small screens */
    display: block;
    margin: 0 auto 10px auto; /* center it */
}

.container {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.highlight {
    color: #1ca64d; /* green to match logo */
    font-weight: bold;
}

.section {
    margin-bottom: 0.5rem;
}

footer {
    background-color: #f5f5f5;
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
}

a {
    color: #004f9f;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 600px) {
    header img {
        max-height: 80px;
    }

    .container {
        padding: 0 0.5rem;
    }
}


  
h2, h3 {
    margin: 0.5em 0;
}
  
ul {
    margin: 0.5em 0;
    padding-left: 1.2em;
}
  
li {
    margin-bottom: 0.3em;
}
  
#map {
    margin-bottom: 1rem;
    border: 1px solid #ccc;
    border-radius: 6px;
}

.travel-table {
    margin: 1rem auto; /* top/bottom spacing + center alignment */
    width: 80%;
    border-collapse: collapse;
  }
  
  .travel-table th, .travel-table td {
    border: 1px solid #ddd;
    padding: 0.5em;
    text-align: left;
  }
  
  .travel-table thead {
    background-color: #f3f3f3;
  }
  
  .travel-table tr:nth-child(even) {
    background-color: #fafafa;
  }
  
  .leaflet-tooltip.hotel-tooltip {
    background-color: transparent;
    color: #333;
    font-size: 14px;
    font-weight: 600;
    box-shadow: none;
    border: none;
    padding: 0;
  }
  
  .nav-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
}
   #map {
          height: 70vh;
          width: 100%;
          max-height: 600px;
        }
        body {
          margin: 0;
          font-family: sans-serif;
        }
        h2 {
          text-align: center;
          margin: 1rem 0;
        }
        .icon-label {
          font-weight: bold;
          font-size: 14px;
          color: white;
          text-align: center;
          line-height: 28px;
        }
		
		.speaker-card {
    background-color: #f7f9fc;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.speaker-card img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
}

.speaker-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.2rem;
    color: #004f9f;
}

.speaker-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #555;
}

.speaker-card h5 {
    font-size: 1rem;
    font-weight: 600;
    color: #1ca64d;
    margin-bottom: 0.5rem;
}

.speaker-card .abstract p {
    margin-bottom: 0.8rem;
    line-height: 1.6;
}