body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f9f9f9;
}

/* html, body {
    overflow: hidden;
}

::-webkit-scrollbar {
    display: none;
} */

* {
    box-sizing: border-box;
}

html, body {
    overflow: auto; 
}


::-webkit-scrollbar {
    width: 0px; 
    height: 0px; 
}

::-webkit-scrollbar-thumb {
    display: none; 
}

::-webkit-scrollbar-track {
    display: none; 
}


header {
    background: #000000;  
    color: white;
    padding: 0.1rem 0;   
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: auto;
    width: 90%;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

header nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 2rem; 
    font-size: 1.25rem;
}

header nav ul li {
    margin: 0; 
}

header nav ul li a {
    padding: 0; 
    text-decoration: none;
    color: white;
    font-weight: 500;
    transition: color 0.3s ease;
    line-height: 1.2;  
}

header nav ul li a:hover {
    color: #ffcc00;
}


#hero {
    position: relative;
    height: 50vh;  
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding: 0 2rem;
    background-color: black;  
}

@media (max-width:430px) {

  header nav ul {
    gap: 1rem;           
    font-size: 0.9rem;      
  }


  .logo {
    display: none;
  }

 
  header .container {
    flex-wrap: wrap;
    justify-content: center;  
  }
}


.video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1; 
    overflow: hidden;
}

#hero-video {
    object-fit: cover; 
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.hero-content .btn {
    background: #ffcc00;
    color: #00274c;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.hero-content .btn:hover {
    background: #e6b800;
}

.section {
    padding: 4rem 0;
    background-color: white;
    text-align: center;
}

.section:nth-child(even) {
    background-color: #f4f4f4;
}

.section .container {
    max-width: 1200px;
    margin: auto;
    width: 90%;
}

#about .container {
    display: flex;
    justify-content: space-between;
    align-items: center; 
    gap: 2rem; 
}

.about-img {
    flex: 1;  
    max-width: 50%; 
}

.about-img img {
    width: 100%; 
    height: auto;  
    border-radius: 8px;  
}

.about-text {
    flex: 2;  
    max-width: 50%;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.about-text p {
    font-size: 1.25rem;
    color: #555;
    line-height: 1.6; 
}

.highlight {
    font-weight: bold;  
    color: #ffcc00;  
    background-color: #00274c; 
    padding: 0.2rem 0.4rem; 
    border-radius: 4px; 
    text-decoration: none; 
}

.highlight:hover {
    text-decoration: underline;
}







#research {
    background-color: #fff;
    padding: 4rem 1rem;
}

#research .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

#research h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
}


#research .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); 
    gap: 4rem;
    margin-top: 2rem;
}


.card {
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.card .card-img {
    width: 100%;
    height: 200px;
    margin-bottom: 1rem;
}

.card .card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: #333;
}

.card p {
    font-size: 1rem;
    color: #666;
}


@media (max-width: 430px) {
    #about .container {
        flex-direction: column;
        align-items: center;
    }

    .about-img,
    .about-text {
        max-width: 100%;
    }

    .about-text h2 {
        font-size: 1.75rem;
    }

    .about-text p {
        font-size: 1.125rem;
    }

    .publications-list {
        font-size: 1rem;
    }
}


/* footer {
    background: #000000;
    color: white;
    text-align: center;
    padding: 1rem 0;
    font-size: 0.9rem;
} */

#team .container h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #333;
    font-weight: 600;
    text-align: center; 
}

#team .container p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: #555;
    text-align: center; 
}


.team-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 3rem; 
    justify-items: center; 
    padding: 2rem;
}


.team-card {
    background: #fff;
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 100%; 
    height: 280px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.team-img img {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 1rem;
}


.team-name {
    font-size: 1.15rem;
    font-weight: 600;
    text-decoration: none;
    color: #333;
    margin-bottom: 0.5rem;
}

.team-name:hover {
    color: #ffcc00;
}

#alumni .team-info {
    font-size: 0.6rem;
}
@media (max-width:430px) {

.team-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); 
    gap: 3rem; 
    justify-items: center; 
    padding: 2rem;
}

.team-card {
    background: #fff;
    padding: 1rem;
    border-radius: 4px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 100%; 
    height: 180px; 
}
.team-img img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.team-name {
    font-size: 0.55rem;
    font-weight: 300;
    text-decoration: none;
    color: #333;
    margin-bottom: 0.3rem;
}
.team-info {
    font-size: 0.55rem;
}
#alumni .team-info {
    font-size: 0.3rem;
}
}
/* General Styles */
body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 0 2rem;
}

header {
    background: #000000;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 2rem;
    justify-content: center;
}

header nav ul li a {
    text-decoration: none;
    color: white;
    font-weight: 500;
}

header nav ul li a:hover {
    color: #ffcc00;
}

/* Publications Section */


/* Container for buttons to align left with space */
.category-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
    justify-content: flex-start;
    padding-left: 30px;
}


.category-buttons .btn {
    padding: 8px 16px;
    background-color: #00274c;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
    white-space: nowrap; 
    flex-shrink: 0;       
}


.category-buttons .btn:hover {
    background-color: #ffcc00;
    transform: scale(1.05);
}

.category-buttons .btn.active {
    background-color: #ffcc00;
    color: #00274c;
    font-weight: 600;
}


@media (max-width: 600px) {
    .category-buttons {
        gap: 5px;
        padding-left: 15px;
    }

    .category-buttons .btn {
        font-size: 0.75rem;
        padding: 2px 5px;
    }
}

/* Adjusting the publication list items */
#publications-list {
    list-style: none;
    padding: 30px;
}

.publication-item {
    margin-bottom: 15px;
    padding: 15px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    text-align: left;
    transition: background-color 0.3s ease;
}

.publication-item:hover {
    background-color: #f4f4f4;
}


.publication-item a {
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    color: #00274c;
    display: inline; 
    margin-bottom: 5px; 
}

.publication-item .authors {
    font-size: 1rem;
    margin-top: 5px;
    display: block; 
}

.publication-item .journal {
    font-size: 1rem;
    margin-top: 5px;
    display: block; 
}

.publication-item .code-link {
    font-size: 0.9rem;
    display: inline;  
    margin-left: 5px; 
}

.publication-item .code-link a {
    color: #ffcc00;
    text-decoration: none;
}

.publication-item .code-link a:hover {
    text-decoration: underline;
}

.publication-item a:hover {
    color: #ffcc00;
}

.publication-item b {
    font-weight: bold;
}

.publication-item p {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #555;
}




.publication-item.category-research1,
.publication-item.category-research2,
.publication-item.category-research3,
.publication-item.category-research4 {
    display: none;
}


.publication-item.category-all {
    display: block;
}


@media (max-width: 430px) {
    .publications-list {
        font-size: 0.3rem;
        padding: 10px;
    }

.publication-item a {
    font-size: 0.5rem;
    font-weight: 300;
    text-decoration: none;
    color: #00274c;
    display: inline; 
    margin-top: 1px;
    margin-bottom: 1px; 
}

.publication-item .authors {
    font-size: 0.4rem;
    margin-top: 3px;
    display: block;  
}

.publication-item .journal {
    font-size: 0.5rem;
    margin-top: 3px;
    display: block;  
}

.publication-item .code-link {
    font-size: 0.3rem;
    display: inline;  
    margin-left: 3px; 
}

.publication-item p {
    margin-top: 5px;
    font-size: 0.3rem;
    color: #555;
}


}


#talks {
    padding: 4rem 0;
    background-color: #f4f4f4;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 600;
    color: #00274c;
}

.intro-text {
    text-align: center;
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 3rem;
}

.talks-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.talker-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: #000000;
}

.talk-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.talk-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

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

.talk-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: #50575c;
    margin-bottom: 1rem;
}

.talk-description {
    font-size: 1rem;
    color: #555;
    line-height: 1.6;
}

@media (max-width:430px) {
    /* .talks-grid {
        grid-template-columns: 1fr;
    } */

    .talker-name {
    font-size: 0.6rem;
    font-weight: 600;
    color: #000000;
}

    .talks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 0.5rem;
    padding: 0.5rem;
}

.speaker-photo {
    width: 75px;
    height: 75px;
    border-radius: 20%;
    object-fit: cover;
    margin-bottom: 0.5rem;
}

    .section-title {
        font-size: 0.9rem;
    }

    .intro-text {
        font-size: 0.8rem;
    }

    .talk-title {
        font-size: 0.5rem;
    }
}




footer {
    background: #000000;
    color: white;
    text-align: center;
    padding: 1rem 0;
    font-size: 0.9rem;
}

.footer-icons {
    margin-top: 10px;
}

.footer-icon {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-size: 1.2rem;
}

.footer-icon i {
    margin-right: 5px;
}

.footer-icon:hover {
    color: #ffcc00;
}