/* ---------- Variables ---------- */
:root {
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --ink-faint: #888;
  --paper: #fdfcf8;
  --rule: #e4e2db;
  --accent: #2d4a6b;
  --accent-hover: #1f3550;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --serif: 'Source Serif 4', 'Source Serif Pro', Charter, Georgia, serif;
  --max-width: 980px;
  --sidebar-width: 240px;
  --gap: 64px;
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }
html { font-size: 17px; }
body {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 120ms ease, color 120ms ease;
}
a:hover {
  color: var(--accent-hover);
  border-bottom-color: currentColor;
}
em { font-style: italic; color: var(--ink-soft); }
strong { font-weight: 600; }

/* ---------- Top nav ---------- */
.topnav {
  border-bottom: 1px solid var(--rule);
  padding: 18px 32px;
  background: var(--paper);
}
.topnav ul {
  display: flex;
  justify-content: flex-end;
  gap: 28px;
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--max-width);
  font-family: var(--mono);
  font-size: 0.84rem;
  letter-spacing: 0.02em;
}
.topnav a {
  color: var(--ink-soft);
  text-transform: lowercase;
}
.topnav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 500;
}

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: var(--gap);
  max-width: var(--max-width);
  margin: 40px auto 64px;
  padding: 0 32px;
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: sticky;
  top: 32px;
  align-self: start;
}
.photo-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  margin-bottom: 24px;
  overflow: hidden;
  border-radius: 2px;
  background: #ece9df;
}
.photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
}
.sidebar .name {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 6px;
  letter-spacing: -0.005em;
  line-height: 1.25;
}
.sidebar .title {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin: 0 0 20px;
  line-height: 1.45;
}
.sidebar .contact {
  list-style: none;
  padding: 0;
  margin: 0;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.9;
  color: var(--ink-soft);
}
.sidebar .contact li { margin: 0; }

/* ---------- Main content ---------- */
.content { min-width: 0; }
.content h2 {
  font-size: 1.45rem;
  font-weight: 600;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}
.content h2.section-label {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  margin-top: 32px;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
}
.content > h2.section-label:first-child,
.content > p + h2.section-label,
.content > p:first-child + h2.section-label,
.content > ul.news + h2.section-label {
  margin-top: 16px;
}
.content p {
  margin: 0 0 1.1em;
  max-width: 62ch;
  hyphens: auto;
}

/* ---------- News / talks list ---------- */
.news {
  list-style: none;
  padding: 0;
  margin: 0;
}
.news li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 20px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.96rem;
  line-height: 1.5;
}
.news li:last-child { border-bottom: none; }
.news .date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  padding-top: 2px;
}

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--rule);
  padding: 28px 32px;
  max-width: var(--max-width);
  margin: 0 auto;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}
footer p { margin: 0; }

/* ---------- Mobile ---------- */
@media (max-width: 760px) {
  html { font-size: 16px; }
  .topnav { padding: 14px 20px; }
  .topnav ul { justify-content: center; gap: 20px; flex-wrap: wrap; }
  .layout {
    grid-template-columns: 1fr;
    gap: 36px;
    margin: 32px auto 64px;
    padding: 0 20px;
  }
  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 18px;
    align-items: start;
  }
  .photo-wrap { width: 100px; margin-bottom: 0; }
  .sidebar > h1, .sidebar > .title, .sidebar > .contact {
    grid-column: 2;
  }
  .news li { grid-template-columns: 90px 1fr; gap: 14px; }
  footer { padding: 20px; }
}