.hamburger-container {
    right:7rem;
}
header .logo {
    text-align: right;
    width: 19%;
}
/* Style for secondary header */
.secondary-header {
    position: relative;
    overflow: hidden;
    background: transparent;
    backdrop-filter: blur(3px);
    padding-top: 8%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.secondary-header h1 {
    font-size: calc(5.5vw + 0.1rem);
    color: var(--green);
    font-weight: bold;
    margin-bottom: 2px;
    text-align: center;
}
.sub-heading{
    text-align: center;
    margin-bottom: 4%;
    font-weight: bold;
    color: #4b4b4b;
    font-size: calc(2.2vw + 0.1rem);
}
.profile-sidebar h2{
    color: var(--green);
}
.secondary-header .bio-content{
    width:83%;
    margin: 0 auto;
    perspective: 1000px;
    transform-style: preserve-3d;
}
.secondary-header p {
    font-size: calc(1.5vw + 0.1rem);
    color: #333;
    margin-bottom: 30px;
   
}

#webgl-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,68,68,0.05) 100%);
}
.custom-arrow {
    background: none;
    border: none;
    background: white;
    font-size: 24px;
    border-radius: 51px;
    width: 45px;
    height:45px;
    
    color: #000;
    cursor: pointer;
    position: absolute;
    top: 50%;
    z-index: 2;
    transform: translateY(-50%);
}
  
  .slick-prev {
    left: 10px;
  }
  
  .slick-next {
    right: 10px;
  }
  
.bio-line {
    width: 100%;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    padding: 20px;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    will-change: transform, opacity, filter;
}
.bio-line {
    transform: translateZ(0); /* Ensure hardware acceleration */
    backface-visibility: hidden;
    display: inline-block; /* For proper transform handling */
    will-change: transform, opacity, filter;
    opacity: 1; /* Initial state before GSAP overrides */
}
.bio-line span {
    display: inline-block;
    transform-origin: center center;
    will-change: transform, opacity;
}

.bio-line:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 15px 45px rgba(31, 38, 135, 0.15);
}

.bg-video-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

#bgVideo, #bgVideo ~ video {
    width:65%;
    height: auto;
    transform: translateY(-50%);
    top: 50%;
    position: absolute;
    opacity: 0.3;
    object-fit: contain;
    border-radius: 20px;
    filter: brightness(1.1) contrast(1.1);
    transition: filter 0.8s ease, transform 1s ease;
    will-change: transform, opacity;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transform-style: preserve-3d;
}

.glitch-effect {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    /* mix-blend-mode: overlay; */
    pointer-events: none;
}

@media (max-width: 768px) {
    #bgVideo {
        width: 90%;
    }
}
/* research legacy */
.research-legacy {
   background-color: #b2d8a7 ;
}
.research-legacy .container {
    width: 66%;
    margin: 0 auto;
    perspective: 1000px;
    transform-style: preserve-3d;
}
.research-legacy .sub-heading{
    font-size: calc(4.4vw + 0.1rem);
    color: #333;
    font-weight: bold;
    margin-bottom: 20px;
    text-align: left;
    /* text-align: center; */
}
.research-legacy p {
    font-size: calc(1.5vw + 0.1rem);
    color: #333;
    margin-bottom: 30px;
}

/* Sticky Links */
.sticky-links {
    position: fixed;
    right: 20px;
    bottom: 40px;
    z-index: 1000;
    transform: translateZ(0);
}

.sticky-links-btn {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 12px 24px;
    border-radius: 30px;
    color: #333;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.sticky-links-btn {
    position: fixed;
    right: 30px;
    bottom: 30px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 16px 28px;
    border-radius: 60px;
    color: #333;
    font-weight: 500;
    cursor: pointer;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    transform: translateZ(0);
}

.sticky-links-btn i {
    font-size: 20px;
    background: linear-gradient(45deg, #2196F3, #4CAF50);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.sticky-links-btn:hover i {
    transform: translateY(-3px) rotate(-12deg);
}

.sticky-links-btn i {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.sticky-links-btn:hover i {
    transform: translateY(-2px);
}

.sticky-links-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.sticky-links-content {
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 10px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 15px;
    width: 250px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(10px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sticky-links.active .sticky-links-content {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.sticky-links-content a {
    display: block;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.sticky-links-content a:hover {
    background: rgba(0, 0, 0, 0.05);
    transform: translateX(5px);
}

/* Slide-in panel for useful links */
.useful-links-panel {
    position: fixed;
    right: -400px;
    top: 0;
    width: 400px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 40px;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
    overflow-y: auto;
}

.useful-links-panel {
    padding: 30px;
    background: rgba(255, 255, 255, 0.95);
}

.useful-links-panel.active {
    transform: translateX(-400px);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.panel-header h3 {
    font-size: 24px;
    color: #333;
    margin: 0;
}

.close-panel {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
    color: #333;
}

.link-item {
    display: flex;
    align-items: center;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-decoration: none;
    color: #333;
}

.link-item {
    padding: 18px 24px;
    margin-bottom: 12px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    gap: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.link-item i {
    margin-right: 15px;
    font-size: 20px;
}

.link-item i {
    font-size: 22px;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.link-item:hover {
    transform: translateX(-5px);
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.link-item:hover {
    transform: translateX(-8px);
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.link-item:hover i {
    transform: scale(1.2);
}

.link-item:hover i {
    transform: scale(1.2) rotate(-10deg);
}

/* Profile Button Styles */
.profile-button {
    position: fixed;
    right: 30px;
    bottom: 30px;
    padding: 16px 28px;
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    z-index: 1001;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.profile-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.profile-button i {
    font-size: 20px;
    color: #fff;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    z-index: 1001;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.profile-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 400px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 60px 30px 30px;
    z-index: 1002;
    visibility: hidden;
    transform: translateX(100%);
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.05);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-btn i {
    font-size: 20px;
    color: #2c3e50;
}

.profile-links {
    margin-top: 20px;
}

.profile-links li {
    margin-bottom: 15px;
}

.profile-links a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    border-radius: 12px;
    background: white;
    color: #2c3e50;
    text-decoration: none;
  
}

.profile-links a i {
    font-size: 22px;
}

/* Modern icon set */
.profile-links .scholar i { content: '\f19d'; }        /* graduation-cap */
.profile-links .researchgate i { content: '\f54f'; }   /* microscope */
.profile-links .personal i { content: '\f0ac'; }       /* globe */
.profile-links .wikipedia i { content: '\f266'; }      /* wikipedia-w */
.profile-links .bharatpedia i { content: '\f02d'; }    /* book */
.profile-links .banglapedia i { content: '\f549'; }    /* university */

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    pointer-events: none;
    backdrop-filter: blur(3px);
    z-index: 1000;
    visibility: hidden;
    transition: opacity 0.3s ease;
}

.profile-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 400px;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: -2px 0 25px rgba(0,0,0,0.1);
    padding: 60px 30px 30px;  /* Increased top padding for close button */
    z-index: 1001;
    visibility: hidden;
    will-change: transform;
    transform: translateX(100%);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.profile-sidebar.active {
    transform: translateX(0);
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 1003;
}

.close-btn i {
    font-size: 20px;
    color: #2c3e50;
    transition: transform 0.3s ease;
}

.close-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    transform: rotate(90deg);
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(3px);
    opacity: 0;
    visibility: hidden;
    z-index: 1001;
    cursor: pointer;
    transition: all 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    background: none;
    border: none;
    cursor: pointer;
    color: #2c3e50;
    opacity: 1; /* Ensure visibility */
    padding: 10px;
    transition: transform 0.3s ease;
}

.close-btn:hover {
    transform: rotate(90deg);
}

.sidebar-content h2 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(44, 62, 80, 0.1);
}

.profile-links {
    list-style: none;
    padding: 0;
}

.profile-links li {
    margin-bottom: 20px;
    opacity: 1; /* Changed from 0 */
    transform: translateX(0); /* Reset initial transform */
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.profile-links a {
    display: flex;
    align-items: center;
    color: #2c3e50;
    text-decoration: none;
    font-size: 1.1em;
    padding: 12px 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.5);
}

.profile-links a i {
    margin-right: 15px;
    font-size: 1.2em;
    transition: transform 0.3s ease;
}

.profile-links a:hover {
    background: rgba(44, 62, 80, 0.1);
    transform: translateX(5px);
}

.profile-links a:hover i {
    transform: scale(1.2);
}

/* Custom icon colors */
.profile-links .scholar i { color: #4285f4; }
.profile-links .researchgate i { color: #00ccbb; }
.profile-links .personal i { color: #2196F3; }
.profile-links .wikipedia i { color: #666666; }
.profile-links .bharatpedia i { color: #ff5722; }
.profile-links .banglapedia i { color: #4CAF50; }

.academic-profiles {
    position: fixed;
    z-index: 1000;
}

.profile-button {
    position: fixed;
    right: 30px;
    bottom: 30px;
    padding: 15px 30px;
    background: var(--green);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    z-index: 1001;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    visibility: hidden;
    opacity: 0;
    z-index: 1001;
}

.profile-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    width: 400px;
    height: 100vh;
    background: white;
    visibility: hidden;
    transform: translateX(400px);
    z-index: 1002;
    box-shadow: -5px 0 25px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

/* Custom SVG Icons Styles */
.profile-icon {
    width: 24px;
    height: 24px;
    fill: currentColor;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.close-icon {
    width: 24px;
    height: 24px;
    fill: currentColor;
    transition: transform 0.3s ease;
}

/* Icon-specific colors and effects */
.scholar-icon {
    color: #4285f4;
    filter: drop-shadow(0 2px 4px rgba(66, 133, 244, 0.2));
}

.research-icon {
    color: #00ccbb;
    filter: drop-shadow(0 2px 4px rgba(0, 204, 187, 0.2));
}

/* Hover animations */
.profile-links a:hover .profile-icon {
    transform: scale(1.2) rotate(-5deg);
}

.close-btn:hover .close-icon {
    transform: rotate(90deg);
}

/* Profile button icon */
.profile-button svg {
    width: 20px;
    height: 20px;
    fill: white;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Icon gradients */
.profile-links .scholar .profile-icon { fill: url(#scholarGradient); }
.profile-links .researchgate .profile-icon { fill: url(#researchGradient); }
.profile-links .personal .profile-icon { fill: url(#personalGradient); }
.profile-links .wikipedia .profile-icon { fill: url(#wikiGradient); }
.profile-links .bharatpedia .profile-icon { fill: url(#bharatGradient); }
.profile-links .banglapedia .profile-icon { fill: url(#banglaGradient); }

/* Add SVG gradients */
.svg-gradients {
    position: absolute;
    width: 0;
    height: 0;
    pointer-events: none;
}

/* Updated icon colors with gradients */
.profile-links .scholar .profile-icon { color: #4285f4; }
.profile-links .researchgate .profile-icon { color: #00ccbb; }
.profile-links .personal .profile-icon { color: #2196F3; }
.profile-links .wikipedia .profile-icon { color: #666666; }
.profile-links .bharatpedia .profile-icon { color: #ff5722; }
.profile-links .banglapedia .profile-icon { color: #4CAF50; }

/* Hover effects for icons */
.profile-links a:hover .profile-icon {
    transform: scale(1.2) rotate(-5deg);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.close-btn:hover .close-icon {
    transform: rotate(90deg);
}

.image-columns {
    padding: 40px 0;
}

.masonry-grid {
    column-count: 2;
    column-gap: 20px;
}

.masonry-item {
    display: inline-block;
    width: 100%;
    margin-bottom: 20px;
}

.masonry-item img {
    width: 100%;
    height: auto;
    display: block;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .masonry-grid {
        column-count: 2;
    }
}

@media (max-width: 480px) {
    .masonry-grid {
        column-count: 1;
    }
}
/*  */
.usefull-links-heading{
font-size: calc(2.4vw + 0.1rem);

    color: #333;
    font-weight: bold;
    margin-bottom: 20px;
}
.duttaroy-container {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.duttaroy-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    border-bottom: 2px solid #1d6a96;
    padding-bottom: 20px;
}

.duttaroy-profile-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #1d6a96;
}

.duttaroy-title-section h1 {
    color: #1d6a96;
    margin: 0 0 5px 0;
    font-size: 28px;
}

.duttaroy-subtitle {
    color: #555;
    margin: 0;
    font-size: 16px;
    font-weight: 500;
}

.duttaroy-badge {
    display: inline-block;
    background-color: #1d6a96;
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    margin-top: 8px;
    margin-right: 5px;
}

.duttaroy-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.duttaroy-section {
    background-color: #a9d49d;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.duttaroy-section-title {
  
    padding-bottom: 8px;
    margin-top: 0;
    font-size:23px;
}
svg.duttaroy-section-icon{
    width: 20px;
    fill: #3e8d7a;
}
.duttaroy-link-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.duttaroy-link-item {
    margin-bottom: 12px;
}

.duttaroy-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #333;
    font-size: 18px;
    border-radius: 6px;
    transition: all 0.2s ease;
    /* background-color: #abdc9e; */
  
}

.duttaroy-link:hover {
    background-color: #e9f5fb;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.duttaroy-publication-link {
    border-left-color: #e74c3c;
}

.duttaroy-profile-link {
    border-left-color: #3498db;
}

.duttaroy-research-link {
    border-left-color: #2ecc71;
}

.duttaroy-news-link {
    border-left-color: #f39c12;
}
.silder img {
    height: 600px;
    object-fit: cover;
    width: 100%;
    display: block;
}

.image-container {
    position: relative;
    overflow: hidden;
}

.caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0)); /* Gradient background */
    color: #fff;
    padding: 20px;
    text-align: left;
    opacity: 0;
    transform: translateY(100%);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.slick-active .caption {
    opacity: 1;
    transform: translateY(0);
}

.caption-title {
    font-size: 1.5em;
    font-weight: bold;
    margin: 0 0 10px 0;
    color: #fff;
}

.caption-description {
    font-size: 1em!important;
    margin: 0;
    color: #eee!important;
    line-height: 1.5;
}

/* Optional: Add a hover effect for the caption */
.image-container:hover .caption {
    opacity: 1;
    transform: translateY(0);
}

.duttaroy-icon {
    margin-right: 8px;
    color: #1d6a96;
    font-weight: bold;
    width: 20px;
    fill: #3e8d7a;
}

.duttaroy-footer {
    margin-top: 30px;
    text-align: center;
    color: #777;
    font-size: 12px;
}

@media (max-width: 768px) {
    .duttaroy-header {
        flex-direction: column;
        text-align: center;
    }
    
    .duttaroy-sections {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 480px) {
    .secondary-header .bio-content {
        width: 100%;
        margin: 0 auto;
        perspective: 1000px;
        transform-style: preserve-3d;
    }
    .secondary-header p {
        font-size: 1rem;
        color: #333;
        margin-bottom: 30px;
    }

.secondary-header {
    position: relative;
    overflow: hidden;
    background: transparent;
    backdrop-filter: blur(3px);
    padding-top: 36%;
    display: flex
;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.secondary-header h1 {
    font-size: 1.5rem;
}
.sub-heading {
    text-align: center;
    margin-bottom: 4%;
    font-weight: bold;
    color: #4b4b4b;
    font-size: 0.9rem;
}
.research-legacy .sub-heading {
    font-size: 1.5rem;
}
.research-legacy p {
    font-size: 1rem;
    color: #333;
    margin-bottom: 20px;
}
.research-legacy .container {
    width: 88%;
    margin: 0 auto;
    perspective: 1000px;
    transform-style: preserve-3d;
}
.usefull-links-heading {
    font-size: 1.5rem;
    color: #333;
    font-weight: bold;
    margin-bottom: 20px;
}
.duttaroy-section-title {
    padding-bottom: 8px;
    margin-top: 0;
    font-size: 18px;
}
header .logo {
    text-align: right;
    width: 53%;
  }
  header .logo a {
    color: rgb(0, 0, 0);
    font-weight: 500;
    text-decoration: none;
    font-size: calc(6vw + 0.1rem);
}
.hamburger-container {
    right: 1rem;
}


.slick-prev {
    left: 10px;
}


    .custom-arrow {
        background: none;
        border: none;
        background: white;
        font-size: 18px;
        border-radius: 51px;
        height: 30px;
        display: flex
;
        align-items: center;
        justify-content: center;
        width: 30px;
        color: #000;
        cursor: pointer;
        position: absolute;
        top: 50%;
        z-index: 2;
        transform: translateY(-50%);
    }

.silder img {
    height:263px;
    object-fit: cover;
    width: 100%;
    display: block;
  }
  .caption-description {
    font-size: 1em!important;
    margin-bottom: 0!important;}
    .my-icon{
        transform: translate(0px, -2px);
    }
}