:root {
    color-scheme: light;
    --background-color: #fff;
    --text-color: #302c27;
    --link-color: #1116b5;
    --muted-color: #6b655e;
    --rule-color: #302c2726;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 17px;
    line-height: 1.65;
    max-width: 700px;
    margin: 0 auto;
    padding: 48px 28px 64px;
    background: var(--background-color);
    color: var(--text-color);
}

body > header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    margin-bottom: 64px;
}

.site-title { color: var(--link-color); font-size: 16px; font-weight: 500; }
nav { display: flex; align-items: center; gap: 22px; }
nav a { color: var(--muted-color); font-size: 16px; }
nav a.active { color: var(--link-color); text-decoration: underline; text-underline-offset: 6px; }
h1, h2, h3 { font-weight: 500; letter-spacing: -.02em; line-height: 1.25; }
h1 { font-size: 1.9em; margin: 0 0 1.2rem; }
h2 { font-size: 1.4em; margin: 2rem 0 1rem; }
h3 { font-size: 1.15em; margin: .2rem 0 .4rem; }
main > section:first-child > h2 { margin-top: 0; }
p { margin: 0 0 1.35em; }
a { color: var(--link-color); text-decoration: none; text-underline-offset: 3px; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--link-color); outline-offset: 4px; }

.name-highlight { position: relative; display: inline-block; }
.hover-photo {
    position: absolute;
    width: 105px;
    height: 105px;
    border-radius: 50%;
    overflow: hidden;
    top: -125px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease;
}
.hover-photo img { width: 100%; height: 100%; object-fit: cover; }
.name-highlight:hover > .hover-photo { opacity: 1; }

.social-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; margin-left: -10px; }
.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 44px;
    height: 44px;
    border-radius: 6px;
    color: var(--link-color);
}
.social-link svg { display: block; width: 22px; height: 22px; fill: currentColor; }
.social-link:hover, .social-link:focus-visible { background: #1116b508; text-decoration: none; }

.research { font-size: 15.5px; line-height: 1.4; }
.research > header { margin-bottom: 44px; }
.research h2 { font-size: 20px; margin: 26px 0 12px; }
.research main > section:first-child > h2 { margin-top: 0; }
.papers-list { list-style: decimal; padding-left: 24px; margin: 0; }
.papers-list li { padding-left: 3px; margin-bottom: 8px; }
.papers-list li::marker { color: var(--muted-color); font-size: 12px; font-variant-numeric: tabular-nums; }
.papers-list .title { font-weight: 500; }
.papers-list .meta { color: var(--muted-color); }

@media (max-width: 520px) {
    body { padding: 26px 22px 44px; }
    body > header { align-items: baseline; flex-wrap: wrap; gap: 14px; margin-bottom: 42px; }
    nav { gap: 18px; }
    .site-title, nav a { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
    .hover-photo { transition: none; }
}