/* Design A — Classic Sidebar */
:root {
  --ink: #1d2433;
  --muted: #5b6475;
  --line: #e3e6ec;
  --line-soft: #eef0f4;
  --accent: #1F4E79;
  --accent-hover: #123150;
  --bg: #ffffff;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
a { color: var(--accent); }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.skip-link { position: absolute; left: -9999px; top: 8px; padding: 8px 12px; background: var(--ink); color: #fff; z-index: 10; }
.skip-link:focus { left: 8px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.topbar { border-bottom: 1px solid var(--line); }
.topbar-inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px 32px; padding-top: 18px; padding-bottom: 18px; }
.brand { font-weight: 600; font-size: 18px; color: var(--ink); text-decoration: none; }
.topbar nav { display: flex; flex-wrap: wrap; gap: 8px 28px; font-size: 15px; }
.topbar nav a { color: var(--muted); text-decoration: none; }
.topbar nav a:hover { color: var(--ink); }
.topbar nav a[aria-current="page"] { color: var(--ink); font-weight: 500; }

/* Two-column layout that stacks on phones */
.layout { display: flex; flex-wrap: wrap; gap: 48px 64px; align-items: flex-start; padding-top: 56px; padding-bottom: 72px; }

.profile { flex: 1 1 240px; max-width: 300px; display: flex; flex-direction: column; gap: 20px; }
.photo { width: 180px; aspect-ratio: 652 / 675; object-fit: cover; border-radius: 12px; display: block; background: #e8eef6; }
.name { margin: 0; font-size: 26px; line-height: 1.25; font-weight: 600; }
.role { margin: 6px 0 0; color: var(--muted); font-size: 15px; }
.links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; font-size: 15px; }
.links a { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; min-height: 28px; }

.content { flex: 999 1 560px; min-width: 0; }
.content > * + * { margin-top: 0; }
.page-title { margin: 0 0 24px; font-size: 32px; line-height: 1.2; font-weight: 600; }
.content h2 { margin: 48px 0 14px; font-size: 22px; line-height: 1.3; font-weight: 600; }
.content h2:first-of-type { margin-top: 0; }
.page-title + h2 { margin-top: 0; }
.content p { margin: 0 0 12px; }
.content ul:not(.pubs):not(.news) { margin: 0; padding-left: 20px; }
.content ul:not(.pubs):not(.news) li + li { margin-top: 6px; }

.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px; margin: 48px 0 18px; }
.section-head h2 { margin: 0; }
.section-head a { font-size: 15px; }

/* Publications */
.pubs { list-style: none; margin: 0; padding: 0; }
.pub { padding: 20px 0; border-bottom: 1px solid var(--line-soft); }
.pub:first-child { padding-top: 0; }
.pub:last-child { border-bottom: 0; }
.pub-title { font-weight: 500; text-decoration: none; }
span.pub-title { color: var(--ink); }
.content .pub-authors, .content .pub-venue { margin: 4px 0 0; color: var(--muted); font-size: 15px; }
.pub-venue { margin-top: 2px !important; }
.pub-authors strong { color: var(--ink); font-weight: 600; }
.footnote { color: var(--muted); font-size: 14px; }

/* News */
.news { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.news li { display: flex; flex-wrap: wrap; gap: 4px 20px; }
.news .date { flex: 0 0 120px; color: var(--muted); font-variant-numeric: tabular-nums; }
.news .text { flex: 1 1 300px; }

.button { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 18px; border-radius: 8px; background: var(--accent); color: #fff !important; text-decoration: none; font-weight: 500; }
.button:hover { background: var(--accent-hover); }

.footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.footer .wrap { padding-top: 24px; padding-bottom: 24px; }

@media (max-width: 640px) {
  .layout { padding-top: 32px; }
  .profile { max-width: none; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .photo { width: 104px; }
}