body {
    font-family: Arial, sans-serif;
}

header, nav, main, footer {
    padding: 20px;
    text-align: center;
}

/* Add more styles as needed */
/****************************************header section **********************************************************/
.hero-header {
    background: url('Gemini_Generated_Image_ot2uohot2uohot2u.png') no-repeat center center;
    background-size: cover; /* Keeps it covering fully */
    /*background-position: top center; /* Adjust to keep the focus area */
    color: white;
    padding: 0;
    width: 100%;
    height: 40vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: sticky;
    top: 0;
    z-index:1000000;
    transition: height 0.5s ease-in-out; /* Slower transition for smooth effect */
}


/* Header Content Box */
.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70%;
    height: 12vh;
    background: rgba(0, 0, 0, 0.5); /* Semi-transparent overlay */
    padding: 15px;
    border-radius: 10px;
    transition: padding 1.5s ease-in-out; /* Smooth shrinking effect */

}

/* Ensure smooth centering of h1 */
.header-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: all 1.2s ease-in-out;
}

.header-text h1 {
    margin: 0;
    font-size: 1.8rem;
    transition: font-size 1s ease-in-out, transform 1s ease-in-out;
    transform: translateY(0);
}

/* h2 and h3 initial styles */
.header-text h2, .header-text h3 {
    margin: 5px 0;
    font-size: 1.2rem;
    opacity: 1;
    visibility: visible;
    transition: opacity 1.2s ease-in-out, visibility 1.2s ease-in-out;
}


/* Logo Container (Outside the Overlay) */
.logo-container {
    position: absolute;
    right: 55px; /* Adjust as needed */
    top: 50%;
    transform: translateY(-50%); /* Keeps logo vertically centered */
    transition: opacity 1.5s ease-in-out; /* Smooth fade-out */
}

/* Initial Styles */
.logo-snmg {
    position: absolute;
    right: 77%;
    top: 50%;
    transform: translateY(-50%);
    height: 14vh;
    opacity: 0.85;
    display: flex;
    align-items: center;
    transition: height 1.2s ease-in-out, right 1.2s ease-in-out;
}

.logo-snmg img.logo {
    height: 100%;
    width: auto;
    border-radius: 10px;
    object-fit: contain;
    transition: height 1.2s ease-in-out;
}


.header-logo {
    max-height: auto; /* Adjust based on logo size */
    width: 120px;
}


/* Shrinking Header */
.hero-header.shrink-header {
    height: 10vh; /* Shrinks header when scrolled */
    background-size: cover; /* Keeps background responsive */
}

/* When scrolling, reduce the padding */
.hero-header.shrink-header .header-content {
    padding: 5px;
    height: 8vh;
}

/* Header Text */
.header-text {
    text-align: center;
    transition: opacity 1.5s ease-in-out, transform 1.5s ease-in-out;
}

/* Shrink text size when scrolling */
.hero-header.shrink-header .header-text h1 {
    font-size: 1.2rem; /* Reduce size */
    transform: translateY(27px); /* Adjust slightly down for visual centering */
    position: relative;
    
}

/* Center main text vertically clearly when scrolled */
.hero-header.shrink-header .header-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}


/* Hide the logo when scrolling */
.hero-header.shrink-header .logo-container {
    opacity: 0;
}

.hero-header.shrink-header .header-text h2,
.hero-header.shrink-header .header-text h3 {
    opacity: 0;
    visibility: hidden;
    
}

/* Hide the logo when scrolling */
.hero-header.shrink-header .logo-snmg {
    height: 8vh;
    right: 79%;
}


/************************************header section end**********************************************************/




/*********************************** Style the navigation menu ****************************************************/
/* Style the top navigation */
.topnav {
    background-color: #ffffff; /* Dark background */
    overflow: visible;
    position: fixed; /* Stay on top */
    width: 98.9%;
    top: 0;
    z-index: 1000000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: top 0s ease; /* Smooth transition for any top value adjustments */
    
}

.topnav a, .dropdown-btn {
    padding: 14px 16px;
    color: rgb(0, 0, 0);
    text-decoration: none;
    display: block;
    transition: background-color 0.00003s;
    z-index: 1000000;
    border-radius: 10px;
    margin-top: 5px;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(112, 109, 109, 0.689);
}

.topnav a:hover, .dropdown-content a:hover {
    background-color: #825732;
    color: rgb(255, 255, 255);
}

/* Dropdown styles */
.dropdown {
    position: relative; /* Necessary for absolute positioning of dropdown content */
}

.menuPanel {
    opacity: 0;
    top: 100%;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 200px;
    pointer-events: none;
    box-shadow: 0px 8px 16px 0 rgba(0, 0, 0, 0.2);
    z-index: 1000001;
}

.menuPanel a {
    float: none;
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
    z-index: 1000001;
}

/* Slide down animation */
.menuPanel.slide-down {
    animation: slideDown 0.4s forwards ease;
    pointer-events: auto;
    opacity: 1;
}
  
/* Slide up animation */
.menuPanel.slide-up {
    animation: slideUp 0.4s forwards ease;
    pointer-events: none;
    opacity: 0;
}
  
@keyframes slideDown {
    0% {
      height: 0;
      opacity: 0;
    }
    100% {
      height: 200px;
      opacity: 1;
    }
}
  
@keyframes slideUp {
    0% {
      height: 200px;
      opacity: 1;
    }
    100% {
      height: 0;
      opacity: 0;
    }
}


.dropdown-icon {
    font-size: 0.75em;
    transition: transform 0.4s ease;
    display: inline-block;   /* Important for transform to work */
    
}



.dropdown-icon.rotate {
    transform: rotate(180deg);
}




/************************************************navigation end************************************************/




/***************************************************awards section************************************************/

/* --- General Reset & Fonts --- */
body {
    background-color: #f4f7f6; /* Light grey background */
}

/* --- Banner Section --- */
.page-banner {
    position: relative;
    width: 100%;
    height: 350px;
    background-image: url('banner.jpg'); /* REPLACE with your banner image */
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    margin-top: 0; /* Adjust if hidden behind navbar */
}

.banner-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.6), rgba(0,25,50,0.8));
}

.banner-text {
    position: relative;
    z-index: 2;
    padding: 0 20px;
}

.banner-text h1 {
    font-family: 'Merriweather', serif;
    font-size: 3rem;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.banner-text p {
    font-family: 'BenchNine', sans-serif;
    font-size: 1.5rem;
    font-weight: 300;
}

/* --- Timeline Container --- */
.timeline-section {
    padding: 50px 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.timeline-container {
    position: relative;
}

/* Vertical Line */
.timeline-container::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: #ddd;
    top: 0;
    bottom: 0;
    left: 50%; /* Center line */
    margin-left: -2px;
}

/* --- Timeline Item --- */
.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%; /* Half width */
    box-sizing: border-box;
    margin-bottom: 40px;
    opacity: 0; /* Hidden for animation */
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Alternating Left/Right */
.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

/* The Dot */
.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    right: -10px;
    background-color: #fff;
    border: 4px solid #003366; /* IITG Blue */
    top: 20px;
    border-radius: 50%;
    z-index: 1;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
}

/* Date Label */
.timeline-date {
    position: absolute;
    top: 18px;
    right: -130px;
    width: 100px;
    text-align: left;
    font-family: 'Merriweather', serif;
    font-weight: 900;
    color: #003366;
}

.timeline-item:nth-child(even) .timeline-date {
    left: -130px;
    text-align: right;
}

/* --- Content Card --- */
.timeline-content {
    padding: 25px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-left: 5px solid #003366;
    transition: transform 0.3s ease;
}

.timeline-content:hover {
    transform: scale(1.02);
}

.location-badge {
    background-color: #eee;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    color: #555;
    font-family: sans-serif;
}

.talk-title {
    font-family: 'Merriweather', serif;
    color: #222;
    margin: 15px 0;
    font-size: 1.4rem;
}

/* --- Speaker Section --- */
.speaker-info {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
}

.speaker-photo {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #003366;
    margin-right: 15px;
}

.speaker-details h4 {
    margin: 0;
    font-family: 'Merriweather', serif;
    color: #003366;
    font-size: 1.1rem;
}

.speaker-details p {
    margin: 5px 0 0;
    font-family: 'BenchNine', sans-serif;
    font-size: 1.1rem;
    color: #666;
    line-height: 1.2;
}

/* --- Gallery Grid --- */
.gallery-title {
    font-size: 0.9rem;
    color: #888;
    text-transform: uppercase;
    margin-bottom: 8px;
    font-weight: bold;
}

.gallery-grid {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.gallery-thumb {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.gallery-thumb:hover {
    opacity: 0.8;
}

/* --- Responsive Media Queries --- */
@media screen and (max-width: 768px) {
    .timeline-container::after {
        left: 31px; /* Move line to left */
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 21px; /* Align dots on left line */
        right: auto;
    }
    
    .timeline-date {
        position: relative;
        top: -10px;
        left: 0 !important;
        right: auto !important;
        text-align: left !important;
        margin-bottom: 5px;
        display: block;
    }
}

/* --- Lightbox CSS --- */
.lightbox-modal {
    display: none; 
    position: fixed; 
    z-index: 1000; 
    padding-top: 100px; 
    left: 0; top: 0; 
    width: 100%; height: 100%; 
    overflow: auto; 
    background-color: rgba(0,0,0,0.9); 
}

.lightbox-content {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
    max-height: 80vh;
    object-fit: contain;
    animation: zoom 0.6s;
}

@keyframes zoom {
    from {transform:scale(0)} 
    to {transform:scale(1)}
}

.close-lightbox {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}

/**********************************************************Footer section*******************************************************************/


/******************************************************* Footer Styling ************************************************************/
footer {
    background: linear-gradient(135deg, #595959, #323233,#060606); /* Gradient Background */
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between; /* Keeps contact, clock, and map in one row */
    align-items: center; /* Centers everything vertically */
    border-radius: 15px;
    width: 100%;
    box-sizing: border-box;
    flex-wrap: wrap;
}

/* Contact Info */
.contact-info {
    flex: 1;
    text-align: left;
}












/* Right Section: Map */
.map {
    text-align: right;
}

.map iframe {
    width: 30vw;  /* Ensures it adapts inside the footer */
    height: 200px; /* Adjust this as needed */
    border-radius: 15px; /* Keeps rounded corners */
}


@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}




.map img {
    border-radius: 15px; /* Rounded corners for the map */
}

/* Styles for the digital clock are included in the body of the HTML */


.rounded-social-buttons {
    
    text-align: left;
}

.rounded-social-buttons .social-button {
    display: inline-block;
    position: relative;
    cursor: pointer;
    width: 3.125rem;
    height: 3.125rem;
    border: 0.125rem solid transparent;
    padding: 0;
    text-decoration: none;
    text-align: center;
    color: #fefefe;
    font-size: 1.5625rem;
    line-height: 2em;
    border-radius: 1.6875rem;
    transition: all 0.5s ease;
    margin-right: 0.25rem;
    margin-bottom: 0.25rem;
}

.rounded-social-buttons .social-button:hover, .rounded-social-buttons .social-button:focus {
    transform: rotate(360deg);
    color: #fefefe;
    background: transparent;
    border-color: #fefefe;
}

.rounded-social-buttons .fa-linkedin, .google-scholar img {
    font-size: 25px;
}

.rounded-social-buttons .social-button.linkedin {
    background: #007bb5;
}

.rounded-social-buttons .social-button.linkedin:hover, .rounded-social-buttons .social-button.linkedin:focus {
    color: #007bb5;
    background: #fefefe;
    border-color: #007bb5;
}

.rounded-social-buttons .social-button.google-scholar {
    background: black;
}

.rounded-social-buttons .social-button.google-scholar:hover, .rounded-social-buttons .social-button.google-scholar:focus {
    color: black;
    background: #fefefe;
    border-color: black;
}

.clock-container {
    margin-top: 30px;
    background-color: #080808;
    border-radius: 15px;
    padding: 20px;
    box-shadow: 1px 1px 5px rgba(255,255,255,0.15),
                0 15px 90px 30px rgba(0,0,0,0.25);
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-family: 'Montserrat', sans-serif;
    transform: translateX(-100px);
}
  
  .clock-col {
    text-align: center;
    margin: 0 8px;
    min-width: 80px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  
  .clock-col:not(:last-child)::after {
    content: ':';
    color: rgba(255,255,255,0.5);
    font-size: 2rem;
    position: absolute;
    top: 20%;
    right: -14px;
    transform: translateY(-50%);
  }
  
  .clock-timer {
    font-size: 2rem;
    margin: 0;
    line-height: 1;
  }
  
  .clock-label {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
    margin-top: 6px;
  }
  
  .clock-col:last-child::after {
    display: none;
  }
  

.site-footer {
    width: 100%;
    background-color: #2f0aa000; /* Dark footer background */
    color: #ffffff;            /* White text */
    text-align: center;
    padding: 15px 10px;
    font-size: 0.9rem;
    position: relative;
    bottom: 0;
    margin-top: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
}




/*******************************************************end of index page****************************************************************/



    /* This ensures items are hidden when off-screen */
    .timeline-item {
        opacity: 0;                    
        transform: translateY(100px);   /* Start lower down for dramatic effect */
        transition: all 0.8s ease-out;  /* Smooth transition for both in and out */
    }

    /* This is the class JavaScript adds to show them */
    .timeline-item.visible {
        opacity: 1 !important;         
        transform: translateY(0) !important; 
    }
    
    /* ... keep your lightbox styles here ... */
    .lightbox-modal {
        display: none;
        position: fixed;
        z-index: 1000;
        padding-top: 100px;
        left: 0; top: 0;
        width: 100%; height: 100%;
        overflow: auto;
        background-color: rgba(0,0,0,0.9);
    }
    .lightbox-content {
        margin: auto;
        display: block;
        width: 80%;
        max-width: 700px;
        animation: zoom 0.6s;
    }
    .close-lightbox {
        position: absolute;
        top: 15px; right: 35px;
        color: #f1f1f1;
        font-size: 40px;
        font-weight: bold;
        cursor: pointer;
    }
    @keyframes zoom {
        from {transform:scale(0)} 
        to {transform:scale(1)}
    }