/* Minimal CSS - System fonts, no external dependencies */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    background: #fff;
}

.container {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
nav {
    background: #f5f5f5;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

nav a {
    color: #666;
    text-decoration: none;
    font-size: 0.95rem;
}

nav a:hover {
    color: #333;
}

/* Sections */
section {
    padding: 3rem 0;
}

section:first-of-type {
    padding-top: 2rem;
}

h1 {
    font-size: 2rem;
    font-weight: 600;
    margin: 0 0 2rem 0;
    color: #222;
}

h2 {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 2.5rem 0 1.5rem 0;
    color: #333;
}

h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 1.5rem 0 1rem 0;
}

/* Intro section */
.intro {
    text-align: center;
    margin-bottom: 2rem;
}

.intro img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin-bottom: 1rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.intro h1 {
    margin-bottom: 0.5rem;
}

/* Typography */
p {
    margin: 0 0 1.2rem 0;
    color: #444;
}

a {
    color: #0066cc;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

strong {
    font-weight: 600;
    color: #222;
}

em {
    font-style: italic;
    color: #666;
}

/* Social links */
.social {
    margin: 1.5rem 0;
}

.social a {
    color: #666;
}

.social a:hover {
    color: #333;
    text-decoration: none;
}

/* Work list (publications) */
.work-list {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
}

.work-list li {
    margin: 0.4rem 0;
    color: #555;
    font-size: 0.95rem;
}

.work-list li:first-child {
    margin-top: 0;
    font-weight: 500;
    color: #222;
}

.work-list li:first-child a {
    font-size: 1rem;
    color: #0066cc;
}

.work-list a {
    color: #0066cc;
}

/* Footer */
footer {
    padding: 2rem 0;
    margin-top: 3rem;
    border-top: 1px solid #e0e0e0;
    text-align: center;
}

footer small {
    color: #999;
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    nav {
        flex-direction: column;
        gap: 0.5rem;
    }

    nav a {
        display: block;
        padding: 0.5rem 0;
    }

    .intro img {
        width: 150px;
        height: 150px;
    }

    h1 {
        font-size: 1.6rem;
    }

    h2 {
        font-size: 1.2rem;
    }
}