:root {
    --fg: #111;
    --muted: #666;
    --bg: #fff;
    --accent: #0066ff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family:
        system-ui,
        -apple-system,
        sans-serif;
    color: var(--fg);
    background: var(--bg);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    padding: 2rem 1.5rem;
    margin: auto;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
}

h1 {
    font-size: 2.4rem;
    margin-bottom: 0.5rem;
}

.authors {
    font-weight: 500;
}

.affiliations {
    color: var(--muted);
    font-size: 0.9rem;
}

.links {
    margin-top: 1.5rem;
}

.btn {
    display: inline-block;
    padding: 0.6rem 1.1rem;
    margin: 0.2rem;
    border-radius: 6px;
    background: var(--accent);
    color: white;
    text-decoration: none;
    font-weight: 500;
}

.btn.ghost {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

section {
    margin: 3rem 0;
}

figure {
    margin: 0;
}

.media img {
    width: 100%;
    border-radius: 10px;
}

.media video {
    width: 85%;
    display: block;
    margin: 0 auto;
    border-radius: 10px;
}

figcaption,
.caption {
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

pre.bibtex {
    background: #f4f4f4;
    padding: 1rem;
    overflow-x: auto;
    border-radius: 8px;
    font-size: 0.85rem;
}

footer {
    margin-top: 4rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
}

a.img-link {
    border: none;
    cursor: pointer;
}

a.img-link:hover {
    border: none;
}

a.img-link img {
    display: block; /* kills inline gaps */
}

a {
    color: #0066ff;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition:
        color 0.15s ease,
        border-color 0.15s ease;
}

a:hover {
    color: #1aa0ff;
    border-bottom-color: #1aa0ff;
}

div.downloads {
    display: flex; /* or grid */
    flex-direction: column;
    gap: 1rem;
}