:root {
  --ink: #0B1014;
  --muted: #6A737B;
  --rule: #D2D5D9;
  --paper: #F4F3EE;
  --serif: 'Source Serif 4', 'Source Serif Pro', Georgia, serif;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --pad-x: 64px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-feature-settings: 'liga', 'kern', 'onum';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

/* ── Masthead ─────────────────────────────────────────────────── */
.masthead {
  padding: 32px var(--pad-x);
  border-bottom: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── Container & rows ─────────────────────────────────────────── */
.container {
  padding: 80px var(--pad-x) 0;
  max-width: var(--max);
  margin: 0 auto;
}

.row {
  display: grid;
  grid-template-columns: 200px 1fr 200px;
  gap: 56px;
  padding: 48px 0;
  border-bottom: 1px solid var(--rule);
  align-items: start;
}

.row.head {
  padding: 0 0 64px;
  align-items: start;
}

.row.last { border-bottom: none; }

/* Left column: numeral + label */
.label-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 8px;
}
.label {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.6;
}

/* Right column: italic aside */
.aside {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted);
}

/* ── Head row content ─────────────────────────────────────────── */
.name {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 60px;
  line-height: 1.02;
  letter-spacing: -0.018em;
  margin: 0;
  text-wrap: balance;
}
.tagline {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  line-height: 1.4;
  color: var(--ink);
  margin: 28px 0 14px;
  max-width: 560px;
  text-wrap: pretty;
}
.tagline-sub {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

/* Portrait */
.portrait {
  width: 280px;
  height: 350px;
  object-fit: cover;
  object-position: center 22%;
  display: block;
  filter: saturate(0.92);
}

/* ── Body content ─────────────────────────────────────────────── */
.profile {
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: 0.005em;
  text-wrap: pretty;
  margin: 0;
  max-width: 640px;
}

.inline-line {
  font-size: 17px;
  line-height: 1.65;
  margin: 0;
  max-width: 640px;
  text-wrap: pretty;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 100px 1fr;
  row-gap: 12px;
  column-gap: 32px;
  font-size: 17px;
}
.contact-key {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 4px;
}
.contact-grid a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 1px;
  transition: opacity .2s ease;
}
.contact-grid a:hover { opacity: 0.6; }

/* ── Publications (collapsible) ───────────────────────────────── */
.pubs > summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--serif);
  font-style: italic;
  font-size: 19px;
  line-height: 1.4;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 2px 0;
  user-select: none;
  transition: opacity .2s ease;
}
.pubs > summary::-webkit-details-marker { display: none; }
.pubs > summary::marker { content: ""; }
.pubs > summary::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform .25s ease, border-color .2s ease;
}
.pubs > summary:hover { opacity: 0.7; }
.pubs > summary:hover::after { border-color: var(--ink); }
.pubs > summary:focus-visible {
  outline: none;
  opacity: 0.7;
}
.pubs[open] > summary::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.pub-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}
.pub-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}
.pub-list li:first-child { padding-top: 4px; }
.pub-list li:last-child { border-bottom: none; padding-bottom: 4px; }
.pub-meta {
  display: block;
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.pub-title {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  transition: opacity .2s ease, border-color .2s ease;
}
.pub-title:hover {
  opacity: 0.75;
  border-bottom-color: var(--ink);
}

/* ── Footer ───────────────────────────────────────────────────── */
footer {
  padding: 32px var(--pad-x);
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

/* ── Tablet ───────────────────────────────────────────────────── */
@media (max-width: 960px) {
  :root { --pad-x: 48px; }
  .row {
    grid-template-columns: 160px 1fr;
    gap: 40px;
  }
  .row .aside { display: none; }
  .row.head {
    grid-template-columns: 1fr 240px;
  }
  .row.head .label-col { display: none; }
  .name { font-size: 48px; }
  .tagline { font-size: 20px; }
  .portrait { width: 240px; height: 300px; }
}

/* ── Mobile ───────────────────────────────────────────────────── */
@media (max-width: 640px) {
  :root { --pad-x: 28px; }
  .masthead {
    padding: 24px var(--pad-x);
    font-size: 10px;
    gap: 16px;
  }
  .container {
    padding: 48px var(--pad-x) 0;
  }
  .row {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 36px 0;
  }
  .row.head {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 0 44px;
  }
  .row.head .head-text { order: 2; }
  .row.head .head-photo { order: 1; }
  .label-num { margin-bottom: 4px; }
  .name {
    font-size: 40px;
    letter-spacing: -0.02em;
  }
  .tagline {
    font-size: 19px;
    margin: 22px 0 12px;
  }
  .portrait { width: 220px; height: 275px; }
  .profile, .inline-line { font-size: 16.5px; }
  .contact-grid {
    grid-template-columns: 1fr;
    row-gap: 4px;
  }
  .contact-grid .contact-key {
    padding-top: 14px;
  }
  .contact-grid > .contact-key:first-child { padding-top: 0; }
  footer {
    padding: 24px var(--pad-x);
    font-size: 10px;
    letter-spacing: 0.14em;
  }
}