:root {
  --bg: #ffffff;
  --text: #1f1f1f;
  --muted: #5f6368;
  --faint: #9a9a9a;
  --line: #ececec;
  --link: #2a4d7a;
  --link-line: rgba(42, 77, 122, 0.35);
  --tile-border: #e6e6e6;
  --tile-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --text: #ececec;
    --muted: #a3a3a3;
    --faint: #707070;
    --line: #262626;
    --link: #9cbcf0;
    --link-line: rgba(156, 188, 240, 0.4);
    --tile-border: #2e2e2e;
    --tile-shadow: none;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-decoration-color: var(--link-line);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-color 0.15s, color 0.15s;
}
a:hover { text-decoration-color: currentColor; }

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus { left: 16px; top: 16px; background: var(--text); color: var(--bg); padding: 6px 10px; }

/* ---------- Layout ---------- */

.page {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 72px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 64px 48px 48px;
}

/* ---------- Sidebar ---------- */

.sidebar {
  position: sticky;
  top: 64px;
  align-self: start;
}

.avatar {
  display: block;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--line), 0 2px 8px rgba(0, 0, 0, 0.06);
}

.name {
  display: block;
  margin: 16px 0 28px;
  font-size: 23px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.nav, .social {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav li { margin-bottom: 4px; }

.nav a {
  color: var(--muted);
  text-decoration: none;
}
.nav a:hover { color: var(--text); }
.nav a[aria-current="page"] {
  color: var(--text);
  border-bottom: 1px solid var(--text);
}

.social { margin-top: 22px; }
.social li { margin-bottom: 3px; }
.social a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}
.social a:hover { color: var(--text); }
.social svg { width: 14px; height: 14px; flex: none; }

/* ---------- Main ---------- */

main { min-width: 0; max-width: 660px; }

.bio { margin-bottom: 40px; }
.bio p { margin: 0 0 13px; max-width: 440px; }

h2 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 56px 0 12px;
}

/* ---------- Logo tiles ---------- */

.logo {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--tile-border);
  background: #ffffff; /* logos are designed for light backgrounds */
  box-shadow: var(--tile-shadow);
  overflow: hidden;
  display: grid;
  place-items: center;
  flex: none;
}
.logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 6px;
  display: block;
}
.logo.full img { object-fit: cover; padding: 0; }

/* ---------- Timeline entries ---------- */

.entries { list-style: none; margin: 0; padding: 0; }

.entry {
  display: grid;
  grid-template-columns: 76px 44px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.entry .when {
  color: var(--faint);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
}

.entry h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.entry p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.meta {
  margin-top: 8px !important;
  font-size: 12.5px !important;
  line-height: 1.5;
}

.tag {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  margin-right: 6px;
}

/* ---------- Research list ---------- */

.intro { margin: 0 0 28px; max-width: 480px; color: var(--muted); }

.posts { list-style: none; margin: 0; padding: 0; }

.post {
  display: grid;
  grid-template-columns: 44px 96px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}
.post .date {
  color: var(--muted);
  font-size: 12px;
  padding-top: 2px;
  line-height: 1.5;
  white-space: nowrap;
}
.post .kind { display: block; color: var(--faint); }
.post h3 { margin: 0 0 4px; font-size: 15px; font-weight: 600; line-height: 1.4; }
.post p { margin: 0; color: var(--muted); font-size: 14px; }
.post .authors { font-size: 13px; margin-bottom: 4px; }
.post .authors strong { color: var(--text); font-weight: 600; }

footer {
  margin-top: 72px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 12px;
}

/* ---------- Mobile ---------- */

@media (max-width: 760px) {
  .page {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 36px 16px 32px;
  }
  .sidebar { position: static; }
  .avatar { width: 76px; height: 76px; }
  .name { margin: 12px 0 14px; }
  .nav, .social { display: flex; flex-wrap: wrap; gap: 4px 16px; }
  .social { margin-top: 12px; }
  .bio p { max-width: none; }
  h2 { margin-top: 44px; }

  .entry { grid-template-columns: 44px minmax(0, 1fr); gap: 6px 14px; }
  .entry .when { grid-column: 1 / -1; padding: 0; }

  .post { grid-template-columns: 44px minmax(0, 1fr); gap: 6px 14px; }
  .post .logo { grid-row: span 2; }
  .post .date { grid-column: 2; }
  .post > div:last-child { grid-column: 2; }
}

.logo.tight img { padding: 2px; }

.more {
  display: inline-block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}
.more:hover { color: var(--text); }

/* Publications have no logo column */
.papers .post { grid-template-columns: 96px minmax(0, 1fr); }
@media (max-width: 760px) {
  .papers .post { grid-template-columns: minmax(0, 1fr); }
  .papers .post .date,
  .papers .post > div:last-child { grid-column: 1; }
}