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

body {
    font-family: 'Lexend Deca', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f8f8;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
}

.navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 10px 0;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.7);
    border-radius: 0px;
    overflow: hidden;
    border: 0px solid #000000;
}

.nav-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: color 0.3s ease;
    color: #1a1a1a;
    border-radius: 20px;
    text-decoration: none;
}

.nav-btn:hover {
    color: #f1c40f;
}

#home {
    min-height: 90vh;
    display: flex;
    align-items: center;
    background-color: #fff;
    text-align: center;
    border-top-left-radius: 0px;
    border-top-right-radius: 0px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.7);
}

.profile img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
}

.profile h1 {
    font-size: 36px;
    margin-bottom: 10px;
    font-weight: bold;
    color: #000000;
}

.profile p {
    font-size: 18px;
    color: #666;
}

section {
    padding: 60px 0;
}

.section-heading {
    font-size: 32px;
    margin-bottom: 30px;
    text-align: center;
    font-weight: bold;
    color: #000000;
}

.section-text {
    font-size: 18px;
    margin-bottom: 15px;
    text-align: left;
}

.education-list {
    list-style-type: none;
    counter-reset: education-counter;
}

.education-list li {
    margin-bottom: 30px;
    position: relative;
    padding-left: 60px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 20px;
}

.education-list li:last-child {
    border-bottom: none;
}

.education {
    display: flex;
    flex-direction: column;
}

.education .degree {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 5px;
    color: #1a1a1a;
}

.education .details {
    font-size: 16px;
    color: #666;
}

#publications ol {
    list-style-type: none;
    counter-reset: publication-counter;
}

#publications li {
    margin-bottom: 30px;
    position: relative;
    padding-left: 60px;
}

#publications li:before {
    content: counter(publication-counter);
    counter-increment: publication-counter;
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    background-color: #1a1a1a;
    color: #fff;
    text-align: center;
    line-height: 40px;
    font-size: 20px;
    font-weight: 700;
    border-radius: 50%;
}

.publication {
    display: flex;
    flex-direction: column;
}

.publication .title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 5px;
    color: #1a1a1a;
}

.publication .details {
    font-size: 16px;
    color: #666;
}

.publication a {
    color: #1a1a1a;
    text-decoration: none;
    font-weight: 700;
    transition: color 0.3s ease;
}

.publication a:hover {
    color: #f1c40f;
}

.research-interests {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.research-interests span {
    background-color: #1a1a1a;
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 16px;
}

#connect p {
    text-align: left;
}

.social-media {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
}

.social-media a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 50px;
    background-color: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease;
}

.social-media a:hover {
    background-color: #f1c40f;
}

.social-media a svg {
    fill: #1a1a1a;
}

.arrow-down {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    cursor: pointer;
}

.arrow-icon {
    width: 30px;
    height: 30px;
    border: solid #666;
    border-width: 0 3px 3px 0;
    display: inline-block;
    padding: 3px;
    transform: rotate(45deg);
}

footer {
    background-color: #000000;
    padding: 20px 0;
    text-align: center;
}

footer .container p {
    color: #fff;
    font-size: 14px;
}

.maintainer-link {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.maintainer-link:hover {
    color: #f1c40f;
}

.light-bg {
    background-color: #f8f8f8;
}

.dark-bg {
    background-color: #e8e8e8;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .navigation {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .profile {
        position: relative;
        top: -20px;
    }

    .profile img {
        width: 200px;
        height: 200px;
        border-radius: 50%;
        object-fit: cover;
    }

    .profile h1 {
        font-size: 36px;
        margin: 5px 0;
        font-weight: bold;
        color: #000000;
    }

    .profile p {
        font-size: 18px;
        color: #666;
        margin: 5px 0;
    }

    .section-heading {
        font-size: 28px;
        font-weight: bold;
        color: #000000;
    }

    .education-list li,
    #publications li {
        padding-left: 50px;
    }

    .education-list li:before,
    #publications li:before {
        width: 30px;
        height: 30px;
        line-height: 30px;
        font-size: 16px;
    }

    .education .degree,
    .publication .title {
        font-size: 18px;
    }

    .education .details,
    .publication .details {
        font-size: 14px;
    }

    .research-interests span {
        font-size: 14px;
    }
}