html {
    scroll-behavior: smooth;
}

:root {
    --color-primary: #0b2c4d;

    --color-accent: #0077cc;

    --color-text: #222222;

    --color-text-light: #666666;

    --color-border: #e5e5e5;

    --color-background: #ffffff;
}

* {
    box-sizing: border-box;
}

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

    background-color: #ffffff;

    color: #222222;

    max-width: 1200px;

    margin: 0 auto;

    padding: 30px 40px 60px 40px;
}


.site-header {
    display: flex;

    align-items: center;

    justify-content: space-between;

    padding: 10px 0 25px 0;

    border-bottom: 1px solid #e5e5e5;
}

.logo {
    color: #0b2c4d;

    text-decoration: none;

    font-size: 22px;

    font-weight: 800;

    letter-spacing: 1px;
}

.nav-links {
    display: flex;

    align-items: center;

    gap: 22px;
}

.nav-links a {
    color: #333333;

    text-decoration: none;

    font-size: 15px;

    font-weight: 500;

    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: #0077cc;
}

.nav-links a.active {
    color: #0b2c4d;

    font-weight: 700;
}


/* Hero Section */
.hero {
    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 60px;

    min-height: 70vh;

    padding-top: 40px;
}


.hero-text {
    flex: 1;
}


.hero-image {
    flex: 1;
}


.hero h1 {
    font-size: 64px;

    line-height: 1.05;

    color: #0b2c4d;

    margin-top: 15px;

    margin-bottom: 25px;
}


.hero-label {
    font-size: 13px;

    font-weight: 700;
    
    white-space: nowrap;

    text-transform: uppercase;

    letter-spacing: 2px;

    color: #0077cc;
}


.hero-description {
    font-size: 19px;

    line-height: 1.7;

    color: #555555;

    max-width: 600px;

    margin-bottom: 35px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 50px;
}


.hero-button {
    display: inline-block;

    background-color: #0b2c4d;

    color: white;

    text-decoration: none;

    padding: 14px 24px;

    border-radius: 6px;

    font-weight: bold;

    transition: 0.3s;
}


.hero-button:hover {
    background-color: #0077cc;

    transform: translateY(-2px);
}


/* .hero-image img {
    width: 100%;

    aspect-ratio: 1 / 1;

    object-fit: cover;

    display: block;

    border-radius: 16px;
} */

/* Carousel */
.hero-carousel {
    position: relative;
    width: 100%;
    max-width: 520px;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border-radius: 12px;
}

.carousel-slide {
    display: none;
    width: 100%;
    height: 100%;
}

.carousel-slide.active {
    display: block;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Carousel Buttons */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 42px;
    height: 42px;

    border: none;
    border-radius: 50%;

    background: rgba(0, 0, 0, 0.35);
    color: white;

    font-size: 22px;
    cursor: pointer;

    display: flex;
    align-items: center;
    justify-content: center;

    transition: background 0.3s ease;
}

.carousel-btn:hover {
    background: rgba(0, 0, 0, 0.6);
}

.carousel-btn.prev {
    left: 16px;
}

.carousel-btn.next {
    right: 16px;
}

.carousel-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);

    display: flex;
    gap: 8px;
}

.carousel-dot {
    width: 8px;
    height: 8px;

    border-radius: 50%;
    background: rgba(255, 255, 255, 0.55);

    cursor: pointer;
}

.carousel-dot.active {
    background: white;
}


.menu-button {
    display: none;

    background: none;

    border: none;

    font-size: 28px;

    color: #0b2c4d;

    cursor: pointer;
}

/* Research Grid */
.research-section {
    padding: 100px 0;
}


.section-heading {
    max-width: 750px;

    margin-bottom: 50px;
}


.section-label {
    font-size: 14px;

    font-weight: 700;

    text-transform: uppercase;

    letter-spacing: 2px;

    color: #0077cc;

    margin-bottom: 12px;
}


.section-heading h2 {
    font-size: 42px;

    line-height: 1.15;

    color: #0b2c4d;

    margin: 0 0 20px 0;
}


.section-description {
    font-size: 18px;

    line-height: 1.7;

    color: #666666;

    margin: 0;
}


.research-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}


.research-card {
    background: #fff;
    border: 1px solid #e2e2e2;
    border-radius: 18px;

    display: flex;
    flex-direction: column;

    height: auto;

    overflow: hidden;

    transition: transform 0.3s ease, box-shadow 0.3s ease;
}


.research-card-media {
    margin: 10px 10px 0 10px;

    aspect-ratio: 1 / 1;

    overflow: hidden;
    border-radius: 10px;

    flex-shrink: 0;
}


.research-card-media img {
    width: 100%;
    height: 100%;

    object-fit: contain;

    display: block;
}


.research-card-content {
    display: block;

    padding: 28px;

    width: auto;
    height: auto;

    position: relative;

    visibility: visible;
    opacity: 1;
}


.research-card h3 {
    font-size: 24px;
    line-height: 1.2;

    color: #0b2c4d;

    margin: 0 0 15px 0;
}


.research-card p {
    font-size: 16px;
    line-height: 1.7;

    color: #666666;

    margin: 0 0 24px 0;
}


.research-card a {
    color: #0077cc;

    text-decoration: none;

    font-size: 15px;
    font-weight: 700;
}


.research-card:hover {
    transform: translateY(-6px);

    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.10);
}


.research-card a:hover {
    color: #0b2c4d;
}

/*People Page Intro*/

.page-intro {
    padding: 90px 0 60px 0;

    max-width: 800px;
}


.page-intro h1 {
    font-size: 64px;

    line-height: 1.05;

    color: var(--color-primary);

    margin: 10px 0 20px 0;
}


.page-intro p {
    font-size: 19px;

    line-height: 1.7;

    color: var(--color-text-light);

    max-width: 700px;
}

/* Principal Investigator Card */
.pi-card {
    grid-template-columns: 170px 1fr;

    padding: 34px;

    min-height: 230px;
}


.pi-card .person-photo {
    width: 170px;
}


.pi-card .person-photo img {
    width: 170px;

    height: 200px;
}


.pi-card .person-info h3 {
    font-size: 27px;
}

/* Members Section */

.people-group {
    padding: 80px 0;

    border-top: 1px solid var(--color-border);
}

.people-group-first {
    border-top: none;
    padding-top: 20px;
}

.people-group-heading {
    margin-bottom: 35px;
}


.people-group-heading h2 {
    font-size: 36px;

    color: var(--color-primary);

    margin: 8px 0 0 0;
}

.people-list {
    display: flex;

    flex-direction: column;

    gap: 24px;
}

.person-card {
    display: grid;

    grid-template-columns: 150px 1fr;

    align-items: center;

    column-gap: 36px;

    padding: 32px;

    min-height: 210px;

    background-color: var(--color-background);

    border: 1px solid var(--color-border);

    border-radius: 14px;

    transition:
        transform 0.3s ease,
        box-shadow 0.3s ease;
}

.person-card:hover {
    transform: translateY(-3px);

    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.07);
}

.person-photo {
    width: 150px;
}


.person-photo img {
    width: 150px;

    height: 180px;

    object-fit: cover;

    object-position: center top;

    display: block;

    border-radius: 10px;
}

.person-info {
    min-width: 0;

    display: flex;

    flex-direction: column;

    gap: 11px;
}

.person-info h3 {
    font-size: 24px;

    line-height: 1.25;

    color: var(--color-primary);

    margin: 0;
}


.person-education,
.person-research {
    font-size: 16px;

    line-height: 1.7;

    color: var(--color-text-light);

    margin: 0;
}

.person-education strong,
.person-research strong {
    font-weight: 700;

    color: var(--color-primary);
}

.person-links {
    display: flex;

    flex-wrap: wrap;

    gap: 20px;

    margin-top: 2px;
}


.person-links a {
    font-size: 15px;

    font-weight: 600;

    color: var(--color-accent);

    text-decoration: none;
}


.person-links a:hover {
    color: var(--color-primary);
}

/* Gallery Section */
.gallery-section {
    padding: 80px 0;

    border-top: 1px solid var(--color-border);
}


.gallery-heading {
    margin-bottom: 40px;
}


.gallery-heading h2 {
    font-size: 36px;

    color: var(--color-primary);

    margin: 8px 0 0 0;
}

.cover-grid {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 32px;
}

.cover-card img {
    width: 100%;

    aspect-ratio: 3 / 4;

    object-fit: cover;

    display: block;

    border-radius: 10px;

    margin-bottom: 18px;
}

.cover-card h3 {
    font-size: 20px;

    color: var(--color-primary);

    margin: 0 0 6px 0;
}


.cover-card p {
    font-size: 14px;

    color: var(--color-text-light);

    margin: 0;
}

.outreach-grid {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 30px;
}

.outreach-card img {
    width: 100%;

    aspect-ratio: 16 / 10;

    object-fit: cover;

    display: block;
}

.outreach-content {
    padding: 24px;
}


.outreach-content h3 {
    font-size: 21px;

    color: var(--color-primary);

    margin: 0 0 10px 0;
}


.outreach-content p {
    font-size: 15px;

    line-height: 1.65;

    color: var(--color-text-light);

    margin: 0;
}

/* Alumni Card Spacing */

.alumni-card .person-info {
    gap: 0;
}


.alumni-card .person-info h3 {
    margin: 0 0 4px 0;
}


.alumni-period {
    font-size: 15px;

    font-weight: 600;

    color: var(--color-text-light);

    margin: 0 0 16px 0;
}


.alumni-card .person-education {
    margin: 0 0 10px 0;
}


.alumni-card .person-research {
    margin: 0 0 10px 0;
}


.alumni-destination {
    font-size: 15px;

    line-height: 1.65;

    color: var(--color-text-light);

    margin: 0 0 18px 0;
}


.alumni-card .person-links {
    margin-top: 0;
}


/* News Item with Text */
.news-item-text {
    display: flex;

    align-items: flex-start;

    gap: 12px;

    padding: 8px 0;
}

.news-year h2 {
    font-size: 34px;
}

.news-arrow {
    flex: 0 0 auto;

    font-size: 26px;

    line-height: 1;

    color: var(--color-accent);
}


.news-content {
    flex: 1;

    min-width: 0;
}


.news-content p {
    font-size: 18px;

    line-height: 1.65;

    color: var(--color-text);

    margin: 0;
}

/* News Item with Image */
.news-item-with-image {
    padding: 8px 0 22px 0;
}


.news-text-row {
    display: flex;

    align-items: flex-start;

    gap: 12px;
}


.news-image {
    margin-top: 16px;

    padding-left: 36px;
}


.news-image img {
    width: 100%;

    max-width: 650px;

    height: auto;

    max-height: 500px;

    object-fit: contain;

    display: block;

    border-radius: 8px;
}

.news-image img {
    width: 100%;

    max-width: 500px;

    height: auto;

    object-fit: contain;

    display: block;

    border-radius: 8px;
}

/* Publications Page */
.publications-year {
    padding: 55px 0 75px 0;
}

.publications-year + .publications-year {
    border-top: 1px solid #dce5ec;

    margin-top: 35px;

    padding-top: 45px;
}



.publications-year h2 {
    font-size: 36px;

    color: var(--color-primary);

    margin: 0 0 30px 0;
}


.publications-list {
    display: flex;

    flex-direction: column;

    gap: 38px;
}

/* Publication Item */

.publication-item {
    width: 100%;
}

.publication-media-grid {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 12px;
}


.publication-media-grid img {
    width: 100%;

    height: 220px;

    object-fit: cover;
}

/* Title */

.publication-heading {
    display: flex;

    align-items: flex-start;

    gap: 12px;

    margin-bottom: 14px;

    max-width: 950px;
}


.publication-arrow {
    flex: 0 0 auto;

    font-size: 26px;

    line-height: 1;

    font-weight: 700;

    color: var(--color-accent);
}


.publication-heading h3 {
    font-size: 19px;

    line-height: 1.45;

    font-weight: 700;

    color: var(--color-primary);

    margin: 0;
}

.publication-heading h3 a {
    color: inherit;

    text-decoration: none;
}


.publication-heading h3 a:hover {
    color: var(--color-accent);
}

/* Authors */

.publication-authors {
    font-size: 16px;
    
    line-height: 1.75;

    color: var(--color-text);

    margin: 0 0 5px 34px;
    max-width: 900px;
}


/* .publication-authors strong {
    font-weight: 700;

    color: var(--color-primary);
} */


/* Journal */

.publication-journal {
    font-size: 16px;

    line-height: 1.7;

    color: var(--color-text);

    margin: 0 0 0 34px;
}

/* Optional Publication Image */

.publication-media {
    margin-top: 22px;

    margin-left: 34px;
}


.publication-media img {
    display: block;

    width: 100%;

    max-width: 850px;

    height: auto;

    object-fit: contain;

}

/* Join Section */
.join-heading h2 {
    font-size: 34px;

    line-height: 1.2;

    color: var(--color-primary);

    margin: 8px 0 0 0;
}

.join-content {
    max-width: 720px;
}


.join-content p {
    font-size: 17px;

    line-height: 1.75;

    color: var(--color-text-light);

    margin: 0 0 22px 0;
}


.join-content h3 {
    font-size: 19px;

    color: var(--color-primary);

    margin: 30px 0 12px 0;
}

.join-content ul {
    margin: 0 0 20px 0;

    padding-left: 22px;
}


.join-content li {
    font-size: 16px;

    line-height: 1.75;

    color: var(--color-text-light);

    margin-bottom: 8px;
}


.join-contact {
    padding: 70px 60px;

    margin: 40px 0 90px 0;

    background-color: #f6f9fc;

    border-radius: 16px;
}



/* Heading */

.join-contact-heading {
    text-align: center;

    max-width: 900px;

    margin: 0 auto 50px auto;
}


.join-contact-heading h2 {
    font-size: 38px;

    line-height: 1.2;

    color: var(--color-primary);

    margin: 10px 0 16px 0;
}


.join-contact-heading > p:not(.section-label) {
    font-size: 17px;

    line-height: 1.7;

    color: var(--color-text-light);

    margin: 0;
}

.contact-grid {
    display: grid;

    grid-template-columns: 0.85fr 1.15fr;

    gap: 50px;

    align-items: stretch;
}

.join-button {
    display: inline-block;

    padding: 14px 26px;

    background-color: var(--color-primary);

    color: white;

    text-decoration: none;

    font-size: 15px;

    font-weight: 700;

    border-radius: 7px;

    transition:
        background-color 0.2s ease,
        transform 0.2s ease;
}

.contact-info {
    padding: 10px 0;
}


.contact-info h3 {
    font-size: 24px;

    color: var(--color-primary);

    margin: 0 0 24px 0;
}


.contact-info address {
    font-style: normal;

    margin-bottom: 30px;
}


.contact-info address p {
    font-size: 16px;

    line-height: 1.7;

    color: var(--color-text-light);

    margin: 0 0 14px 0;
}


.contact-info strong {
    font-weight: 700;

    color: var(--color-primary);
}

.contact-name {
    font-size: 19px !important;

    font-weight: 700;

    color: var(--color-primary) !important;

    margin-bottom: 20px !important;
}

.contact-info a {
    color: var(--color-accent);

    text-decoration: none;
}


.contact-info a:hover {
    color: var(--color-primary);
}


.join-button:hover {
    background-color: var(--color-accent);

    transform: translateY(-2px);
}

.contact-map {
    width: 100%;

    min-height: 360px;

    overflow: hidden;

    border-radius: 12px;
}


.contact-map iframe {
    width: 100%;

    height: 360px;

    border: 0;

    display: block;
}

/* ========================================
   RESEARCH PAGE - ACADEMIC STYLE
======================================== */

.research-page {
    max-width: 1220px;
    margin: 0 auto;
    padding: 48px 32px 100px 32px;
}

/* .research-breadcrumb {
    font-size: 15px;
    color: var(--color-text-light);
    margin-bottom: 28px;
} */

/* .research-breadcrumb a {
    color: var(--color-text-light);
    text-decoration: none;
}

.research-breadcrumb a:hover {
    color: var(--color-primary);
}

.research-breadcrumb span {
    margin: 0 8px;
}

.research-breadcrumb .current {
    color: var(--color-accent);
    font-weight: 600;
} */

/* .research-page-header {
    margin-bottom: 56px;
}

.research-accent-line {
    width: 46px;
    height: 8px;
    background-color: #9b1111;
    margin-bottom: 18px;
} */

/* .research-page-header h1 {
    font-size: 64px;
    line-height: 1.05;
    color: var(--color-primary);
    margin: 0 0 28px 0;
}

.research-page-intro {
    font-size: 20px;
    line-height: 1.85;
    color: var(--color-text);
    max-width: 1140px;
    margin: 0;
} */


/* Research topic block */

.research-topic {
    scroll-margin-top: 100px;
    padding: 28px 0 72px 0;
}

.research-topic + .research-topic {
    border-top: 1px solid var(--color-border);
    padding-top: 68px;
}

.research-topic-title {
    font-size: 24px;
    line-height: 1.4;
    color: #9b1111;
    font-weight: 700;
    text-align: center;
    margin: 0 0 24px 0;
}

.research-topic-text {
    font-size: 19px;
    line-height: 1.85;
    color: var(--color-text);
    margin: 0 0 34px 0;
}

.research-topic-media {
    width: 100%;

    margin: 34px 0 18px 0;
}


.research-topic-media img {
    display: block;

    width: 100%;

    max-width: none;

    height: auto;

    object-fit: contain;

    margin: 0 auto;
}

.research-topic-caption {
    font-size: 15px;

    line-height: 1.6;

    color: var(--color-text-light);

    font-style: italic;

    text-align: center;

    margin: 12px 0 30px 0;
}

.research-topic-publications h3 {
    font-size: 18px;
    line-height: 1.4;
    color: var(--color-primary);
    margin: 0 0 14px 0;
}

.research-topic-publications ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.research-topic-publications li {
    font-size: 17px;
    line-height: 1.85;
    color: var(--color-text);
    margin-bottom: 18px;
}

.research-topic-publications a {
    color: #9b1111;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.research-topic-publications a:hover {
    color: var(--color-primary);
}


/* Media Queries */
@media (max-width: 768px) {

    body {
        padding: 20px;
    }


    .site-header {
        flex-wrap: wrap;
    }


    .menu-button {
        display: block;
    }


    .nav-links {
        display: none;

        flex-direction: column;

        align-items: flex-start;

        gap: 18px;

        width: 100%;
    }


    .nav-links.active {
        display: flex;

        padding-top: 25px;
    }

/* Hero Section */

    .hero {
        flex-direction: column;

        padding-top: 40px;

        gap: 40px;
    }

    .hero-label {
        white-space: normal;
        line-height: 1.5;
    }


    .hero h1 {
        font-size: 44px;
    }


    .hero-image {
        width: 100%;
    }


    .hero-image img {
        height: 350px;
    }
    
    /* Hero Container */
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text {
        width: 100%;
    }

    .hero-label {
        white-space: normal;
        font-size: 11px;
        letter-spacing: 1.4px;
        line-height: 1.5;
    }

    .hero-title {
        font-size: 44px;
        line-height: 1.05;
    }

    .hero-description {
        font-size: 16px;
        line-height: 1.7;
    }

    .hero-carousel {
        width: 100%;
        max-width: none;
        aspect-ratio: 1 / 1;
        margin: 0 auto;
        border-radius: 10px;
    }

    .carousel-btn {
        width: 38px;
        height: 38px;
        font-size: 18px;
    }

    .carousel-btn.prev {
        left: 12px;
    }

    .carousel-btn.next {
        right: 12px;
    }

    .carousel-dots {
        bottom: 12px;
    }

    .carousel-dot {
        width: 7px;
        height: 7px;
    }

/* Research Grid */

    .research-grid {
    grid-template-columns: 1fr;
    }

    .research-section {
    padding: 70px 0;
    }

    .section-heading h2 {
    font-size: 34px;
    }

    .research-card img {
    height: 230px;
    }

    .research-topic-media img {
    width: 100%;
    max-width: 100%;
    height: auto;
    }



/* Pepole Page */

    .page-intro {
        padding: 60px 0 40px 0;
    }


    .page-intro h1 {
        font-size: 46px;
    }


    .people-group {
        padding: 60px 0;
    }


    .people-group-heading h2 {
        font-size: 32px;
    }


    .person-card {
        flex-direction: column;

        gap: 24px;

        padding: 24px;
    }


    .person-photo {
        flex: none;

        width: 100%;
    }


    .person-photo img {
        width: 100%;

        height: auto;

        aspect-ratio: 4 / 5;

        object-fit: cover;
    }


    .pi-card {
        padding: 24px;
    }


    .pi-card .person-photo {
        width: 100%;
    }


    .pi-card .person-photo img {
        width: 100%;

        height: auto;

        aspect-ratio: 4 / 5;
    }

    /* Gallery Section */
    .gallery-section {
        padding: 60px 0;
    }


    .gallery-heading h2 {
        font-size: 32px;
    }


    .cover-grid {
        grid-template-columns: 1fr;

        gap: 40px;
    }


    .outreach-grid {
        grid-template-columns: 1fr;
    }

   
    /* Alumni Card */
    .alumni-card .person-photo {
        width: 140px;
    }


    .alumni-card .person-photo img {
        width: 140px;

        height: 168px;

        aspect-ratio: auto;
    }

    /* News Image */
    .news-image {
        padding-left: 0;

        margin-top: 14px;
    }


    .news-image img {
        max-width: 100%;
    }

    /* Publications */
    .publications-year {
        padding: 45px 0 60px 0;
    }


    .publications-year h2 {
        font-size: 31px;
    }


    .publications-list {
        gap: 34px;
    }


    .publication-heading h3 {
        font-size: 18px;
    }


    .publication-authors,
    .publication-journal {
        font-size: 15px;

        margin-left: 0;
    }


    .publication-media {
        margin-left: 0;

        margin-top: 18px;
    }


    .publication-media img {
        max-width: 100%;
    }


    .publication-media-grid {
        grid-template-columns: 1fr;
    }


    .publication-media-grid img {
        height: auto;
    }

    /* Join Section */
    .join-section {
        grid-template-columns: 1fr;

        gap: 28px;

        padding: 60px 0;
    }


    .join-heading h2 {
        font-size: 30px;
    }


    .join-content p {
        font-size: 16px;
    }


    .join-contact {
        padding: 55px 24px;

        margin-bottom: 70px;
    }


    .join-contact h2 {
        font-size: 31px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }


    .join-contact {
        padding: 55px 24px;

        margin-bottom: 70px;
    }


    .join-contact-heading {
        margin-bottom: 40px;
    }


    .join-contact-heading h2 {
        font-size: 31px;
    }


    .contact-map {
        min-height: 300px;
    }


    .contact-map iframe {
        min-height: 300px;
    }

}