:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --text-dim: #555;
  --text-faint: #888;
  --border: #e4e4e4;
  --link: #a6192e;
  --link-hover: #7a1220;

  --font-serif: 'Libre Baskerville', Georgia, serif;
  --font-sans: 'Source Sans 3', -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }

h2 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 400;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.page {
  max-width: 900px;
  margin: 0 auto;
  padding: 64px 24px 100px;
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 56px;
}

/* ============================================================
   Sidebar
   ============================================================ */
.sidebar {
  position: sticky;
  top: 64px;
  align-self: start;
  text-align: center;
}

.avatar {
  display: block;
  width: 130px;
  height: 130px;
  margin: 0 auto 18px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 1px solid var(--border);
}

.sidebar__name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  margin: 0 0 8px;
}

.sidebar__title {
  font-size: 13.5px;
  color: var(--text-dim);
  margin: 0 0 18px;
  line-height: 1.5;
}

.sidebar__icons {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 20px;
}
.sidebar__icons a { color: var(--text-dim); }
.sidebar__icons a:hover { color: var(--link); }

.sidebar__cv {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 7px 16px;
}
.sidebar__cv:hover { border-color: var(--link); text-decoration: none; }

/* ============================================================
   Main content
   ============================================================ */
.content { min-width: 0; }

.bio {
  font-size: 16px;
  color: var(--text);
  margin: 0 0 28px;
}

.section-nav {
  display: flex;
  gap: 18px;
  margin-bottom: 40px;
  font-size: 13.5px;
  font-weight: 600;
}
.section-nav a { color: var(--text-dim); }
.section-nav a:hover { color: var(--link); text-decoration: none; }

section { margin-bottom: 44px; scroll-margin-top: 24px; }

/* Highlights */
.highlights {
  margin: 0;
  padding-left: 20px;
}
.highlights li {
  margin-bottom: 12px;
  font-size: 15px;
  color: var(--text);
}

/* Papers */
.paper {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.paper:last-of-type { border-bottom: none; }
.paper__title {
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.45;
}
.paper__authors {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.paper__venue {
  font-size: 13.5px;
  font-style: italic;
  color: var(--text-faint);
}
.paper__venue a { font-style: normal; }

.section-note {
  font-size: 12.5px;
  color: var(--text-faint);
  margin-top: 12px;
}

/* Projects */
.project { margin-bottom: 22px; }
.project__title {
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 4px;
}
.project__status {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--text-faint);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 7px;
  margin-left: 6px;
  vertical-align: middle;
}
.project p {
  font-size: 15px;
  color: var(--text-dim);
  margin: 0;
}

/* Research */
#research p { font-size: 15px; color: var(--text-dim); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 680px) {
  .page {
    grid-template-columns: 1fr;
    padding: 40px 20px 80px;
    gap: 32px;
  }
  .sidebar {
    position: static;
    text-align: left;
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 18px;
    align-items: center;
  }
  .avatar { width: 80px; height: 80px; margin: 0; }
  .sidebar__name { text-align: left; }
  .sidebar__title { text-align: left; }
  .sidebar__icons { justify-content: flex-start; grid-column: 1 / -1; margin-top: 4px; }
  .sidebar__cv { grid-column: 1 / -1; width: fit-content; }
}

/* Keyboard focus */
a:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }