@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --accent:    #B21B16;
  --bg:        #ffffff;
  --bg-subtle: #f7f7f7;
  --text:      #1a1a1a;
  --muted:     #666666;
  --border:    #e8e8e8;
  --nav-bg:    #111111;
  --max-w:     1060px;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  margin: 0;
  padding: 0;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { display: block; max-width: 100%; }

/* ── NAV ─────────────────────────────────────────── */

.site-nav {
  background: var(--nav-bg);
  width: 100%;
  position: sticky;
  top: 0;
  z-index: 200;
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
  height: 52px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-brand {
  color: #fff;
  font-size: 13.5px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-brand .fn { font-weight: 300; color: #999; }

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2px;
  flex: 1;
}

.nav-links a {
  display: block;
  color: #bbb;
  font-size: 13.5px;
  padding: 5px 11px;
  border-radius: 4px;
  transition: color .15s, background .15s;
  text-decoration: none;
}

.nav-links a:hover { color: #fff; background: rgba(255,255,255,.07); }

.nav-links li.active a {
  color: #fff;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 3px;
}

.nav-icons {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  flex-shrink: 0;
}

.nav-icons a {
  display: flex;
  align-items: center;
  color: #bbb;
  font-size: 22px;
  padding: 5px;
  border-radius: 4px;
  transition: color .15s;
  text-decoration: none;
  line-height: 1;
}
.nav-icons a:hover { color: #fff; }

.nav-icons .gg-link img {
  width: 30px;
  opacity: .65;
  transition: opacity .15s;
}
.nav-icons .gg-link:hover img { opacity: 1; }

/* ── SHARED CONTAINER ────────────────────────────── */

.page-wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

/* ── HOME LAYOUT ─────────────────────────────────── */

.home-layout {
  display: grid;
  grid-template-columns: 1fr 250px;
  gap: 52px;
  padding-top: 52px;
  padding-bottom: 80px;
  align-items: start;
}

/* About card */
.about-card {
  background: var(--bg-subtle);
  border-radius: 10px;
  padding: 32px 36px;
}
.about-card h2 { font-size: 18px; font-weight: 600; margin: 0 0 16px; }
.about-card p  { margin: 0 0 12px; }

/* Section label */
.section-label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 28px 0 0;
}

/* Highlights list */
.highlights {
  border-top: 1px solid var(--border);
  margin-top: 10px;
}

.acc-item { border-bottom: 1px solid var(--border); }

.acc-toggle {
  width: 100%;
  background: none;
  border: none;
  padding: 13px 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  text-align: left;
}
.acc-toggle .icon {
  color: var(--accent);
  font-size: 20px;
  font-weight: 300;
  line-height: 1.2;
  flex-shrink: 0;
}

.acc-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height .3s ease;
}
.acc-body-inner {
  padding: 4px 0 16px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.6;
}
.acc-body-inner a { color: var(--accent); }
.acc-body-inner img { border-radius: 6px; margin-top: 12px; }

.highlight-plain {
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--text);
}

/* ── SIDEBAR ─────────────────────────────────────── */

.sidebar { position: sticky; top: 68px; }

.sidebar-name {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.3px;
  margin: 0 0 16px;
}

.profile-photo {
  width: 100%;
  max-width: 200px;
  border-radius: 8px;
  margin-bottom: 18px;
}

.profile-meta {
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}
.profile-meta strong { color: var(--text); display: block; }
.profile-meta a { color: var(--accent); }

.affil-heading {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 22px 0 10px;
}

.affil-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 12.5px;
  line-height: 1.5;
}
.affil-list li {
  padding: 8px 0;
  border-top: 1px solid var(--border);
  color: var(--text);
}
.affil-list li a { color: var(--accent); }

/* ── INNER PAGES (Research / Code / Data) ────────── */

.inner-content {
  max-width: 760px;
  padding-top: 48px;
  padding-bottom: 80px;
}

.inner-content h2 {
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 28px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}

/* Publications */
.pub-block {
  margin-bottom: 26px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--border);
}

.pub-title {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
  line-height: 1.4;
}

.pub-authors {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 7px;
  line-height: 1.5;
}
.pub-authors a { color: var(--muted); text-decoration: underline; }
.pub-authors a:hover { color: var(--accent); }

.pub-venue {
  font-size: 13px;
  font-style: italic;
  color: var(--text);
  margin-bottom: 7px;
}

.pub-links { font-size: 12.5px; }
.pub-links a {
  color: var(--muted);
  text-decoration: underline;
  margin-right: 12px;
}
.pub-links a:hover { color: var(--accent); }

/* Expandable abstract inside pub */
.pub-acc .acc-toggle {
  font-size: 12.5px;
  color: var(--muted);
  font-weight: 400;
  padding: 6px 0;
}

.pub-acc .acc-body-inner img {
  max-width: 420px;
}

/* Code entries */
.code-entry {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.code-entry:first-of-type { border-top: 1px solid var(--border); margin-top: 8px; }

.code-entry-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.code-entry-title {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}
.code-entry-title a { color: var(--accent); }

.code-entry p {
  font-size: 13.5px;
  color: var(--muted);
  margin: 0;
  line-height: 1.6;
}

.code-entry img {
  border-radius: 6px;
  border: 1px solid var(--border);
  width: 100%;
}

/* Data */
.data-block {
  margin-bottom: 8px;
}

/* ── FOOTER ─────────────────────────────────────── */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 28px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}

/* ── RESPONSIVE ─────────────────────────────────── */

@media (max-width: 820px) {
  .home-layout {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 36px;
  }
  .sidebar { position: static; order: -1; }
  .profile-photo { max-width: 140px; }
  .code-entry { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .nav-brand { display: none; }
  .nav-inner { gap: 12px; padding: 0 16px; }
  .nav-links a { font-size: 12.5px; padding: 5px 8px; }
  .nav-icons a { font-size: 19px; padding: 4px; }
  .nav-icons .gg-link img { width: 24px; }
  .about-card { padding: 22px 20px; }
  .inner-content { padding-top: 32px; }
}