/* =========================================================
   GLOBAL
========================================================= */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;

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

    background: #f4f7fa;
    color: #101722;

    line-height: 1.5;

    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}


/* =========================================================
   HEADER
   ========================================================= */

.site-header {
    width: 100%;

    background: #07131f;

    border-bottom: 1px solid #1d3042;
}

.nav-container {
    height: 47px;

    display: flex;

    align-items: center;

    justify-content: space-between;
}


/* LOGO */

.logo {
    color: #ffffff;

    font-size: 21px;

    font-weight: 700;

    letter-spacing: 3px;

    white-space: nowrap;
}

.logo span {
    color: #12aee8;
}


/* NAVIGATION */

.navigation {
    display: flex;

    align-items: center;

    gap: 27px;
}

.navigation a {
    color: #8fa0b0;

    font-size: 15px;

    transition:
        color 0.2s ease;
}

.navigation a:hover {
    color: #ffffff;
}

.navigation a.active {
    color: #12aee8;
}


/* =========================================================
   MOBILE MENU BUTTON
========================================================= */

.menu-toggle {
    display: none;

    width: 44px;
    height: 44px;

    padding: 8px;

    border: 1px solid #294057;

    border-radius: 10px;

    background: #07131f;

    cursor: pointer;

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

    flex-direction: column;

    gap: 5px;

    z-index: 200;
}

.menu-toggle span {
    display: block;

    width: 23px;
    height: 2px;

    background: #ffffff;

    border-radius: 2px;

    transition:
        transform 0.25s ease,
        opacity 0.25s ease;
}


/* =========================================================
   the above code is global in all the pages
========================================================= */



/* =====================================================
   PAGE INTRO
===================================================== */

.publications-intro {

    padding:

        70px

        7%

        55px;

    max-width: 1150px;

}


/* INTRO LABEL */

.intro-label {

    display: flex;

    align-items: center;

    gap: 12px;

    color: var(--blue);

    font-size: 11px;

    font-weight: 800;

    letter-spacing: 3px;

    margin-bottom: 20px;

}


.label-line {

    width: 35px;

    height: 2px;

    background: var(--blue);

}


/* MAIN TITLE */

.publications-intro h1 {

    max-width: 950px;

    font-size:
        clamp(46px, 6vw, 80px);

    line-height: 0.98;

    letter-spacing: -4px;

    margin-bottom: 28px;

}


.publications-intro h1 span {

    color: var(--blue);

}


/* INTRO TEXT */

.publications-intro > p {

    max-width: 700px;

    color: var(--muted);

    font-size: 17px;

    line-height: 1.65;

}


/* =====================================================
   RESEARCH DOMAINS
===================================================== */

.domains-section {

    padding:

        35px

        7%

        100px;

}


/* SECTION TITLE */

.section-title {

    margin-bottom: 38px;

}


.small-label {

    color: var(--blue);

    font-size: 10px;

    font-weight: 800;

    letter-spacing: 3px;

    margin-bottom: 15px;

}


.section-title h2 {

    font-size:
        clamp(38px, 5vw, 62px);

    line-height: 1;

    letter-spacing: -3px;

}


.section-title h2 span {

    color: var(--blue);

}


/* =====================================================
   DOMAIN GRID
===================================================== */

.domain-grid {

    display: grid;

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

    gap: 20px;

}


/* =====================================================
   DOMAIN CARD
===================================================== */

.domain-card {

    min-height: 340px;

    padding: 32px;

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

    background: #ffffff;

    position: relative;

    overflow: hidden;

    display: flex;

    flex-direction: column;

    justify-content: space-between;

    transition:
        transform 0.35s ease,
        border-color 0.35s ease,
        box-shadow 0.35s ease;

}


.domain-card:hover {

    transform:
        translateY(-8px);

    border-color:
        var(--blue);

    box-shadow:
        0 25px 60px
        rgba(7, 17, 31, 0.08);

}


/* TOP */

.domain-top {

    display: flex;

    justify-content: space-between;

    align-items: flex-start;

}


.domain-icon {

    width: 65px;

    height: 65px;

    display: flex;

    align-items: center;

    justify-content: center;

    color: var(--blue);

    font-size: 54px;

    line-height: 1;

}


.domain-number {

    color: var(--blue);

    font-size: 12px;

    font-weight: 800;

    letter-spacing: 2px;

}


/* BODY */

.domain-body {

    margin-top: 25px;

}


.domain-body h3 {

    font-size: 25px;

    line-height: 1.1;

    letter-spacing: -0.5px;

    margin-bottom: 15px;

}


.domain-body p {

    max-width: 360px;

    color: var(--muted);

    font-size: 15px;

    line-height: 1.6;

}


/* DOMAIN FOOTER */

.domain-footer {

    padding-top: 18px;

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

    display: flex;

    align-items: center;

    justify-content: space-between;

    color: #7b8797;

    font-size: 9px;

    font-weight: 800;

    letter-spacing: 2px;

}


.domain-footer span:last-child {

    color: var(--blue);

    font-size: 17px;

}


/* =====================================================
   ARTICLES SECTION
===================================================== */

.articles-section {

    background: var(--light);

    padding:

        100px

        7%

        120px;

}


/* =====================================================
   ARTICLES HEADER
===================================================== */

.articles-header {

    max-width: 1100px;

    margin:
        0 auto
        55px;

    display: flex;

    align-items: flex-end;

    justify-content: space-between;

    gap: 40px;

}


.articles-header h2 {

    font-size:
        clamp(42px, 5vw, 68px);

    line-height: 0.95;

    letter-spacing: -3px;

}


.articles-header h2 span {

    color: var(--blue);

}


/* =====================================================
   ARTICLE COUNT
===================================================== */

.article-count {

    display: flex;

    align-items: center;

    gap: 15px;

    padding-left: 25px;

    border-left: 1px solid #cbd3de;

}


.article-count strong {

    color: var(--navy);

    font-size: 52px;

    line-height: 1;

}


.article-count span {

    color: #758295;

    font-size: 9px;

    line-height: 1.5;

    letter-spacing: 2px;

    font-weight: 800;

}


/* =====================================================
   ARTICLE CARD
===================================================== */

.article-card {

    max-width: 1100px;

    margin:
        0 auto;

    display: grid;

    grid-template-columns:
        100px 1fr;

    gap: 45px;

    padding:
        55px 0;

    border-top:
        1px solid #d7dee7;

    transition:
        padding-left 0.3s ease;

}


.article-card:last-child {

    border-bottom:
        1px solid #d7dee7;

}


.article-card:hover {

    padding-left: 12px;

}


/* =====================================================
   ARTICLE NUMBER
===================================================== */

.article-index {

    color: var(--blue);

    font-size: 13px;

    font-weight: 800;

    letter-spacing: 2px;

    padding-top: 3px;

}


/* =====================================================
   ARTICLE CONTENT
===================================================== */

.article-content {

    max-width: 900px;

}


/* STATUS */

.article-status {

    color: var(--blue);

    font-size: 10px;

    font-weight: 800;

    letter-spacing: 2.5px;

    margin-bottom: 18px;

}


.accepted-status {

    color: #718096;

}


/* TITLE */

.article-content h3 {

    max-width: 850px;

    font-size:
        clamp(29px, 4vw, 48px);

    line-height: 1.06;

    letter-spacing: -1.8px;

    margin-bottom: 20px;

}


/* AUTHORS */

.authors {

    color: var(--muted);

    font-size: 14px;

    margin-bottom: 35px;

}


.authors strong {

    color: var(--navy);

}


/* =====================================================
   ARTICLE INFORMATION
===================================================== */

.article-information {

    display: flex;

    flex-wrap: wrap;

    gap: 45px;

    padding:
        22px 0;

    border-top:
        1px solid #d7dee7;

    border-bottom:
        1px solid #d7dee7;

    margin-bottom: 25px;

}


.article-information > div {

    display: flex;

    flex-direction: column;

    gap: 5px;

    max-width: 330px;

}


.article-information span {

    color: #7b8797;

    font-size: 9px;

    font-weight: 800;

    letter-spacing: 2px;

}


.article-information strong {

    color: var(--navy);

    font-size: 13px;

    line-height: 1.4;

}


.wide-information {

    min-width: 330px;

}


/* =====================================================
   ACCEPTED BADGE
===================================================== */

.accepted-badge {

    display: inline-block;

    border:
        1px solid #8da0b5;

    color:
        #62758b;

    padding:
        7px 12px;

    font-size: 9px;

    font-weight: 800;

    letter-spacing: 2px;

    margin-bottom: 25px;

}


/* =====================================================
   ARTICLE LINK
===================================================== */

.article-link {

    display: inline-flex;

    align-items: center;

    gap: 12px;

    color: var(--navy);

    text-decoration: none;

    font-size: 10px;

    font-weight: 800;

    letter-spacing: 1.5px;

    border-bottom:
        1px solid var(--navy);

    padding-bottom: 6px;

    transition:
        color 0.25s ease,
        border-color 0.25s ease,
        gap 0.25s ease;

}


.article-link:hover {

    color: var(--blue);

    border-color: var(--blue);

    gap: 18px;

}


.arrow {

    font-size: 16px;

}


/* =====================================================
   FOOTER
===================================================== */

.site-footer {

    background: #050c16;

    color: #718096;

    padding:
        30px 7%;

    text-align: center;

    font-size: 12px;

}


.footer-separator {

    margin:
        0 8px;

    color: #43566c;

}


/* =====================================================
   TABLET
===================================================== */

@media (max-width: 950px) {


    .navigation {

        gap: 18px;

    }


    .domain-grid {

        grid-template-columns:
            1fr;

    }


    .domain-card {

        min-height: 300px;

    }

}


/* =====================================================
   MOBILE
===================================================== */

@media (max-width: 750px) {


    /* HEADER */

    .site-header {

        height: 70px;

        padding:
            0 5%;

    }


    .menu-toggle {

        display: block;

    }


    .navigation {

        display: none;

        position: absolute;

        top: 70px;

        left: 0;

        right: 0;

        background: #ffffff;

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

        padding:
            22px 5%;

        flex-direction: column;

        align-items: flex-start;

        gap: 18px;

    }


    .navigation.show {

        display: flex;

    }


    /* INTRO */

    .publications-intro {

        padding:
            55px 5%
            40px;

    }


    .publications-intro h1 {

        letter-spacing: -2px;

    }


    /* DOMAINS */

    .domains-section {

        padding:
            30px 5%
            75px;

    }


    .section-title h2 {

        letter-spacing: -2px;

    }


    /* ARTICLES */

    .articles-section {

        padding:
            75px 5%
            90px;

    }


    .articles-header {

        flex-direction: column;

        align-items: flex-start;

        gap: 30px;

    }


    .article-count {

        border-left: none;

        padding-left: 0;

    }


    .article-card {

        grid-template-columns:
            1fr;

        gap: 18px;

        padding:
            45px 0;

    }


    .article-card:hover {

        padding-left: 0;

    }


    .article-content h3 {

        letter-spacing: -1px;

    }


    .article-information {

        flex-direction: column;

        gap: 22px;

    }


    .wide-information {

        min-width: 0;

    }

}


/* =====================================================
   SMALL MOBILE
===================================================== */

@media (max-width: 480px) {


    .brand-text strong {

        font-size: 12px;

    }


    .brand-text span {

        font-size: 9px;

    }


    .publications-intro h1 {

        font-size: 43px;

    }


    .section-title h2 {

        font-size: 38px;

    }


    .domain-card {

        padding: 28px;

    }


    .article-content h3 {

        font-size: 29px;

    }


    .article-information {

        gap: 18px;

    }

}



/* =====================================================
   SCROLL REVEAL
===================================================== */

.domain-card,
.article-card {

    opacity: 0;

    transform: translateY(25px);

    transition:
        opacity 0.7s ease,
        transform 0.7s ease,
        border-color 0.35s ease,
        box-shadow 0.35s ease,
        padding-left 0.3s ease;

}


.domain-card.visible,
.article-card.visible {

    opacity: 1;

    transform: translateY(0);

}