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

body {
    background-color: #0b0b0b;
    color: #ffffff;
    font-family: Arial, sans-serif;
}

#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 40px 20px;
}

#hero h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 600;
    letter-spacing: -3px;
    margin-bottom: 24px;
}

#hero .position {
    font-size: clamp(1rem, 2vw, 1.35rem);
    color: #cfcfcf;
    letter-spacing: 1px;
    margin-bottom: 22px;
}

#hero .tagline {
    font-size: 1rem;
    color: #b8b8b8;
    letter-spacing: 3px;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 28px;
    margin-top: 8px;
}

.hero-buttons a {
    text-decoration: none;
    color: #b8b8b8;
    font-size: 0.95rem;
    letter-spacing: 1px;
    padding-bottom: 6px;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.hero-buttons a:hover {
    color: #ffffff;
    border-bottom-color: #ffffff;
}
#about {
    max-width: 900px;
    margin: 0 auto;
    padding: 120px 30px;
}

#about h2 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 40px;
    letter-spacing: -1px;
}

#about p {
    color: #b8b8b8;
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 24px;
}
#focus {
    padding: 120px 30px;
    max-width: 1100px;
    margin: 0 auto;
}

#focus h2 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 60px;
    letter-spacing: -1px;
}

.focus-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.focus-card {
    padding: 36px;
    border: 1px solid #2a2a2a;
    background-color: #101010;
    transition: all 0.3s ease;
}

.focus-card:hover {
    border-color: #666666;
    transform: translateY(-4px);
}

.focus-card h3 {
    font-size: 1.35rem;
    font-weight: 500;
    margin-bottom: 18px;
}

.focus-card p {
    color: #a8a8a8;
    line-height: 1.7;
    font-size: 0.98rem;
}
#projects {
    padding: 120px 30px;
    max-width: 1100px;
    margin: 0 auto;
}

#projects h2 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 60px;
    letter-spacing: -1px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    padding: 36px;
    border: 1px solid #2a2a2a;
    background-color: #101010;
    transition: all 0.3s ease;
}

.project-card:hover {
    border-color: #666666;
    transform: translateY(-4px);
}

.project-status {
    display: block;
    color: #888888;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.project-card h3 {
    font-size: 1.4rem;
    font-weight: 500;
    margin-bottom: 18px;
}

.project-card p {
    color: #a8a8a8;
    line-height: 1.7;
    font-size: 0.98rem;
}
#publications {
    padding: 120px 30px;
    max-width: 1100px;
    margin: 0 auto;
}

#publications h2 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 60px;
    letter-spacing: -1px;
}

.featured-research {
    padding: 45px;
    border: 1px solid #444444;
    background-color: #101010;
    margin-bottom: 90px;
}

.featured-research h3 {
    font-size: 1.8rem;
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 18px;
}

.research-subtitle {
    color: #c0c0c0;
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 18px;
}

.featured-research p {
    color: #a8a8a8;
    line-height: 1.7;
    margin-bottom: 24px;
}

.academic-group {
    margin-bottom: 80px;
}

.group-title {
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 35px;
}
.project-group-title {
    font-size: 1.15rem;
    font-weight: 500;
    margin-top: 45px;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}
.academic-list {
    display: flex;
    flex-direction: column;
}

.academic-item {
    padding: 30px 0;
    border-top: 1px solid #2a2a2a;
}

.academic-item:last-child {
    border-bottom: 1px solid #2a2a2a;
}

.academic-item h4 {
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: 14px;
}

.academic-item p {
    color: #a8a8a8;
    margin-bottom: 14px;
}

.papers-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.paper-card {
    padding: 32px;
    border: 1px solid #2a2a2a;
    background-color: #101010;
    transition: all 0.3s ease;
}

.paper-card:hover {
    border-color: #666666;
    transform: translateY(-4px);
}

.paper-card h4 {
    font-size: 1.15rem;
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: 20px;
}

.publication-type {
    display: block;
    color: #888888;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.featured-research a,
.academic-item a,
.paper-card a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.9rem;
}

.featured-research a:hover,
.academic-item a:hover,
.paper-card a:hover {
    text-decoration: underline;
}
#experience {
    padding: 120px 30px;
    max-width: 1000px;
    margin: 0 auto;
}

#experience h2 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 70px;
    letter-spacing: -1px;
}

.experience-timeline {
    position: relative;
}

.experience-timeline::before {
    content: "";
    position: absolute;
    left: 175px;
    top: 0;
    bottom: 0;
    width: 1px;
    background-color: #2a2a2a;
}

.experience-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 50px;
    position: relative;
    padding-bottom: 55px;
}

.experience-period {
    color: #888888;
    font-size: 0.8rem;
    line-height: 1.5;
    text-align: right;
    white-space: nowrap;
}

.experience-content {
    position: relative;
}

.experience-content::before {
    display: none;
    content: "";
    position: absolute;
    left: -25px;
    top: 5px;
    width: 7px;
    height: 7px;
    border: 1px solid #888888;
    background-color: #0b0b0b;
}

.experience-content h3 {
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.experience-content h4 {
    color: #c0c0c0;
    font-size: 0.95rem;
    font-weight: 400;
    margin-bottom: 12px;
}

.experience-content p {
    color: #999999;
    line-height: 1.7;
    font-size: 0.95rem;
}
#education {
    padding: 120px 30px;
    max-width: 1100px;
    margin: 0 auto;
}

#education > h2 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 70px;
    letter-spacing: -1px;
}

.education-group {
    margin-bottom: 90px;
}

.education-group-title {
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 35px;
}

.education-featured {
    padding: 40px;
    border: 1px solid #444444;
    background-color: #101010;
    margin-bottom: 30px;
}

.education-featured h3 {
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.education-featured h4 {
    color: #c0c0c0;
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 18px;
}

.education-featured p {
    color: #999999;
    line-height: 1.7;
    max-width: 750px;
}

.education-type {
    display: block;
    color: #888888;
    font-size: 0.72rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.degrees-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.degree-card {
    padding: 28px;
    border: 1px solid #2a2a2a;
    background-color: #101010;
}

.degree-card h4 {
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.5;
}

.technical-education {
    margin-top: 20px;
    padding: 28px;
    border: 1px solid #2a2a2a;
    background-color: #101010;
}

.technical-education h3 {
    font-size: 1.05rem;
    font-weight: 500;
}

.postgraduate-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.postgraduate-card {
    padding: 28px;
    border: 1px solid #2a2a2a;
    background-color: #101010;
    transition: all 0.3s ease;
}

.postgraduate-card:hover,
.degree-card:hover,
.technical-education:hover {
    border-color: #666666;
    transform: translateY(-3px);
}

.postgraduate-card h4 {
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.5;
}
#skills {
    padding: 120px 30px;
    max-width: 1000px;
    margin: 0 auto;
}

#skills > h2 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 35px;
    letter-spacing: -1px;
}

.skills-intro {
    max-width: 720px;
    margin-bottom: 70px;
}

.skills-intro p {
    color: #a8a8a8;
    font-size: 1.05rem;
    line-height: 1.8;
}

.skills-group {
    margin-bottom: 60px;
}

.skills-group h3 {
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 25px;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skills-list span {
    display: inline-block;
    padding: 12px 18px;
    border: 1px solid #333333;
    color: #c0c0c0;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.skills-list span:hover {
    border-color: #777777;
    color: #ffffff;
    transform: translateY(-2px);
}
#connect {
    padding: 140px 30px 100px;
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.connect-content {
    max-width: 700px;
    margin: 0 auto;
}

.section-label {
    display: block;
    color: #888888;
    font-size: 0.72rem;
    letter-spacing: 3px;
    margin-bottom: 20px;
}

.connect-content h2 {
    font-size: 3rem;
    font-weight: 500;
    margin-bottom: 25px;
    letter-spacing: -1px;
}

.connect-content p {
    color: #a8a8a8;
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 45px;
}

.connect-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.connect-links a {
    display: inline-block;
    padding: 13px 22px;
    border: 1px solid #333333;
    color: #ffffff;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.connect-links a:hover {
    border-color: #777777;
    transform: translateY(-2px);
}
footer {
    border-top: 1px solid #222222;
    padding: 45px 30px;
    margin-top: 40px;
}

.footer-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.footer-content h3 {
    font-size: 1rem;
    font-weight: 500;
}

.footer-content p {
    color: #888888;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.footer-content span {
    color: #666666;
    font-size: 0.75rem;
}
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;

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

    padding: 0 40px;

    background-color: rgba(11, 11, 11, 0.92);
    border-bottom: 1px solid #222222;

    z-index: 1000;
}

.nav-logo {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-links a {
    color: #999999;
    text-decoration: none;
    font-size: 0.8rem;
    transition: color 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}
section {
    scroll-margin-top: 90px;
}
@media (max-width: 900px) {

    .navbar {
    position: relative;
    height: auto;
    padding: 18px 20px;
    display: block;
}

.nav-logo {
    text-align: center;
    margin-bottom: 15px;
}

.nav-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    text-align: center;
}

    .nav-links a {
        font-size: 0.75rem;
    }

    #hero {
        padding: 140px 20px 100px;
    }

    #hero h1 {
        font-size: 3rem;
    }

    .degrees-grid,
    .postgraduate-grid {
        grid-template-columns: 1fr;
    }

    #education,
    #skills,
    #connect {
        padding-left: 20px;
        padding-right: 20px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

}