* {

    margin: 0;

    padding: 0;

    box-sizing: border-box;
}

:root {

    --bg: #050816;

    --card: rgba(14, 20, 36, 0.82);

    --line: rgba(255, 255, 255, 0.08);

    --text: #f8fafc;

    --sub: #94a3b8;

    --accent: #7c8cff;

    --accent2: #d78bff;

    /* publication */

    --pub-img-width: 340px;

    --pub-card-height: 240px;
}

html {

    scroll-behavior: smooth;
}

body {

    font-family: 'Inter', sans-serif;

    background:
        radial-gradient(circle at top left,
            rgba(124, 140, 255, 0.12),
            transparent 24%),

        radial-gradient(circle at bottom right,
            rgba(215, 139, 255, 0.10),
            transparent 24%),

        var(--bg);

    color: var(--text);

    overflow-x: hidden;

    line-height: 1.7;
}

a {

    text-decoration: none;

    color: inherit;
}

.container {

    width: min(1180px, 92%);

    margin: auto;
}

/* =========================================================
   NAVBAR
   ========================================================= */

nav {

    position: fixed;

    width: 100%;

    top: 0;

    z-index: 1000;

    backdrop-filter: blur(16px);

    background: rgba(5, 8, 22, 0.76);

    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-inner {

    height: 74px;

    display: flex;

    align-items: center;

    justify-content: space-between;
}

.logo {

    font-size: 24px;

    font-weight: 600;
}

.nav-links {

    display: flex;

    gap: 34px;
}

.nav-links a {

    color: #cbd5e1;

    font-size: 18px;

    font-weight: 500;

    transition: 0.25s;
}

.nav-links a:hover {

    color: white;
}

/* =========================================================
   HERO
   ========================================================= */

.hero {

    padding-top: 140px;

    padding-bottom: 58px;
}

.hero-school {

    display: inline-block;

    padding: 5px 18px;

    margin-bottom: 4px;

    border-radius: 18px;

    border: 1.5px solid transparent;

    background:
        linear-gradient(#050816, #050816) padding-box,
        linear-gradient(135deg,
            #8ab4ff,
            #d78bff) border-box;

    font-size: 22px;

    font-weight: 600;
}

.hero-school span {

    background:
        linear-gradient(135deg,
            #8ab4ff,
            #d78bff);

    -webkit-background-clip: text;

    -webkit-text-fill-color: transparent;
}

/* no box version */

.hero-name-no-box {

    margin-bottom: 18px;
}

h1 {

    font-size: 66px;

    line-height: 1.25;

    letter-spacing: -4px;

    font-weight: 800;

    margin: 0;

    background:
        linear-gradient(135deg,
            #8ab4ff,
            #d78bff);

    -webkit-background-clip: text;

    -webkit-text-fill-color: transparent;
}

.hero-buttons {

    display: flex;

    gap: 18px;

    flex-wrap: wrap;
}

.hero-btn {

    display: flex;

    align-items: center;

    gap: 12px;

    padding: 14px 22px;

    border-radius: 18px;

    border: 1px solid rgba(255, 255, 255, 0.08);

    background: rgba(255, 255, 255, 0.03);

    transition: 0.25s;

    font-size: 18px;
}

.hero-btn:hover {

    transform: translateY(-3px);

    border-color: rgba(124, 140, 255, 0.35);

    background: rgba(124, 140, 255, 0.08);
}

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

section {

    padding: 60px 0;
}

.section-title {

    font-size: 40px;

    font-weight: 700;

    letter-spacing: -1px;

    margin-bottom: 28px;
}

/* =========================================================
   ABOUT
   ========================================================= */

.about-grid {

    display: grid;

    grid-template-columns: 1.1fr 0.9fr;

    gap: 44px;

    align-items: start;
}

.about-text p {

    color: var(--sub);

    font-size: 17px;

    margin-bottom: 20px;
}

.advisors-line {

    font-size: 17px !important;
}

.advisor-link {

    color: #c4b5fd;

    font-weight: 600;

    text-decoration: none;

    

    transition: 0.2s;
}

.advisor-link:hover {

    color: #d78bff;

    border-bottom-color: #d78bff;
}

.bio-card {

    background: rgba(14, 20, 36, 0.68);

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

    border-radius: 24px;

    padding: 30px;

    margin-top: -115px;
}

.timeline-item {

    display: flex;

    gap: 20px;

    padding: 20px 0;

    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.timeline-item:last-child {

    border-bottom: none;
}

.dot {

    width: 12px;

    height: 12px;

    border-radius: 50%;

    margin-top: 8px;

    background:
        linear-gradient(135deg,
            var(--accent),
            var(--accent2));

    box-shadow:
        0 0 14px rgba(124,140,255,0.8);
}

.timeline-year {

    color: #a78bfa;

    font-size: 18px;

    margin-bottom: 4px;
}

.timeline-title {

    font-size: 22px;

    font-weight: 600;
}

.timeline-sub {

    color: var(--sub);

    font-size: 18px;
}

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

.research-grid {

    display: grid;

    grid-template-columns: repeat(4, 1fr);

    gap: 18px;
}

.research-card {

    padding: 28px;

    border-radius: 22px;

    border: 1px solid rgba(255,255,255,0.08);

    background:
        linear-gradient(180deg,
            rgba(16,24,40,0.88),
            rgba(11,17,31,0.88));

    transition: 0.25s;
}

.research-card:hover {

    transform: translateY(-5px);

    border-color: rgba(124,140,255,0.28);

    box-shadow:
        0 0 28px rgba(124,140,255,0.08);
}

.research-card-header {

    display: flex;

    align-items: center;

    justify-content: space-between;

    margin-bottom: 18px;
}

.research-id {

    color: #a78bfa;

    font-size: 30px;

    font-weight: 700;
}

.research-icon {

    font-size: 36px;

    color: #b794ff;
}

.research-card h3 {

    font-size: 20px;

    margin-bottom: 14px;
}

.research-card p {

    color: var(--sub);

    font-size: 17px;
}

/* =========================================================
   PUBLICATIONS
   ========================================================= */

.pub-list {

    display: flex;

    flex-direction: column;

    gap: 22px;
}

.pub-card {

    display: grid;

    grid-template-columns: var(--pub-img-width) 1fr;

    gap: 30px;

    align-items: stretch;

    height: var(--pub-card-height);

    border-radius: 24px;

    overflow: hidden;

    border: 1px solid rgba(255,255,255,0.08);

    background:
        linear-gradient(135deg,
            rgba(15,22,38,0.92),
            rgba(10,16,30,0.92));

    transition: 0.25s;
}

.pub-card:hover {

    transform: translateY(-4px);

    border-color: rgba(124,140,255,0.28);
}

.pub-image {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #ffffff;          
}

.pub-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;          
    display: block;
    padding: 0;                
}

.pub-content {

    padding: 22px 34px 22px 0;

    display: flex;

    flex-direction: column;

    justify-content: center;

    overflow: hidden;
}

.pub-top {

    display: flex;

    align-items: center;

    gap: 14px;

    margin-bottom: 12px;

    flex-wrap: wrap;
}

.pub-badge {

    padding: 6px 14px;

    border-radius: 999px;

    background: rgba(124,140,255,0.14);

    color: #c4b5fd;

    font-size: 16px;

    font-weight: 600;
}

.pub-year {

    color: #64748b;

    font-size: 16px;

    font-weight: 400;
}

.paper-link {

    color: #94a3b8;

    font-size: 14px;

    transition: 0.2s;
}

.paper-link:hover {

    color: #d78bff;
}

.pub-note {

    margin-left: 66px;

    padding: 5px 12px;

    border-radius: 999px;

    border: 1px solid rgba(215,139,255,0.22);

    background: rgba(215,139,255,0.08);

    color: #e9d5ff;

    font-size: 14px;

    font-weight: 600;

    line-height: 1.4;

    white-space: nowrap;
}

.pub-note-icon {

    margin-left: -6px;
}

.pub-title {

    font-size: 19px;

    line-height: 1.36;

    font-weight: 620;

    margin-bottom: 8px;

    color: white;
}

.pub-authors {

    font-size: 15px;

    line-height: 1.55;

    color: #64748b;
}

.pub-authors .me {

    color: #d78bff;

    font-weight: 600;
}

.pub-card-text {

    padding: 30px;

    border-radius: 22px;

    border: 1px solid rgba(255,255,255,0.08);

    background:
        linear-gradient(135deg,
            rgba(15,22,38,0.92),
            rgba(10,16,30,0.92));

    transition: 0.25s;
}

.pub-card-text:hover {

    transform: translateY(-3px);

    border-color: rgba(124,140,255,0.28);
}

/* =========================================================
   PUBLICATION SUBTITLES
   ========================================================= */

.pub-subtitle {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 16px;
    margin-bottom: 4px;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: #c4b5fd;
}

.pub-subtitle::before,
.pub-subtitle::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(124,140,255,0.45), transparent);
}

.pub-subtitle-icon {
    font-size: 22px;
    line-height: 1;
}



.contact-box {

    border-radius: 28px;

    padding: 32px 48px;

    background:
        linear-gradient(135deg,
            rgba(124,140,255,0.08),
            rgba(215,139,255,0.06));

    border: 1px solid rgba(255,255,255,0.08);
}

.contact-box p {

    color: var(--sub);

    margin-top: 8px;

    margin-bottom: 10px;

    font-size: 17px;
}

.contact-email {

    display: flex;

    align-items: center;

    gap: 10px;

    color: var(--sub);

    font-size: 17px;
}

.contact-email a {

    color: #c4b5fd;

    border-bottom: 1px solid rgba(196, 181, 253, 0.3);

    transition: 0.2s;
}

.contact-email a:hover {

    color: #d78bff;

    border-bottom-color: #d78bff;
}

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

footer {

    padding: 70px 0;
}

.footer-text {

    text-align: center;

    color: #64748b;

    font-size: 14px;

    margin-bottom: 26px;
}


.map-box {

    overflow: hidden;

    border-radius: 24px;

    border: 1px solid rgba(255,255,255,0.08);


    width: fit-content;

    margin: 24px auto 0;

    background: rgba(255,255,255,0.02);
}

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

@media(max-width:1000px) {

    .research-grid {

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

    .about-grid {

        grid-template-columns: 1fr;
    }

    .bio-card {

        margin-top: 0;
    }

    .pub-card {

        grid-template-columns: 1fr;

        height: auto;
    }

    .pub-content {

        padding: 24px;
    }

    h1 {

        font-size: 56px;
    }
}

@media(max-width:500px) {

    .research-grid {

        grid-template-columns: 1fr;
    }

    .nav-links {

        display: none;
    }

    h1 {

        font-size: 42px;

        letter-spacing: -2px;
    }

    .hero-school {

        font-size: 16px;
    }

    .hero-btn {

        font-size: 16px;
    }

    .pub-note {

        margin-left: 0;

        white-space: normal;
    }
}