@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('assets/fonts/dm-sans-400.ttf') format('truetype');
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('assets/fonts/dm-sans-500.ttf') format('truetype');
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('assets/fonts/dm-sans-600.ttf') format('truetype');
}
@font-face {
  font-family: 'Lora';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('assets/fonts/lora-400.ttf') format('truetype');
}
@font-face {
  font-family: 'Lora';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('assets/fonts/lora-600.ttf') format('truetype');
}
@font-face {
  font-family: 'Lora';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('assets/fonts/lora-700.ttf') format('truetype');
}
@font-face {
  font-family: 'Lora';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('assets/fonts/lora-italic-400.ttf') format('truetype');
}

/* ─── Design tokens ──────────────────────────────────────────────── */
:root {
  --page:         #f0ebe1;        /* warmer, slightly darker off-white */
  --surface:      #faf8f4;        /* floating surface */
  --surface-hi:   #ffffff;        /* elevated card */
  --ink:          #1c1815;
  --ink-mid:      #3e3830;        /* darker — body secondary text */
  --ink-soft:     #5c554c;        /* darker — authors, events, notes */
  --ink-ghost:    #7a6e62;        /* was near-invisible, now clearly readable */
  --accent:       #7a3020;        /* deep terracotta */
  --accent-2:     #2e6b65;        /* dark teal */
  --gold:         #a07030;
  --border-faint: rgba(160,148,130,0.18);
  --border-soft:  rgba(160,148,130,0.32);
  --glow:         rgba(120,90,60,0.055);
  --glow-md:      rgba(120,90,60,0.10);

  --font-serif: 'Lora', Georgia, serif;
  --font-ui:    'DM Sans', system-ui, sans-serif;

  --nav-h:    60px;
  --r-card:   14px;
  --r-sm:     6px;
  --max-w:    740px;
  --max-w-wide: 1060px;
}

/* ─── Reset ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--page);
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.82;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: opacity .18s; }
a:hover { opacity: .65; }
p { margin-bottom: 1.1em; }
p:last-child { margin-bottom: 0; }

/* ─── Navigation ─────────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(240,235,225,0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-faint);
}
.nav-inner {
  max-width: var(--max-w-wide);
  width: 100%; margin: 0 auto;
  padding: 0 3rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
  font-family: var(--font-serif);
  font-size: .95rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.2;
}
.nav-brand span {
  display: block;
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: .67rem;
  color: var(--ink-ghost);
  letter-spacing: .11em;
  text-transform: uppercase;
  margin-top: 1px;
}
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  font-family: var(--font-ui);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color .2s;
  position: relative;
  padding-bottom: 3px;
}
.nav-links a::after {
  content: '';
  position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1.5px;
  background: var(--accent);
  transition: right .25s ease;
}
.nav-links a:hover,
.nav-links a.active { color: var(--accent); opacity: 1; }
.nav-links a:hover::after,
.nav-links a.active::after { right: 0; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px;
  background: none; border: none;
}
.nav-toggle span {
  display: block; width: 20px; height: 1.5px;
  background: var(--ink); border-radius: 2px; transition: .3s;
}

/* ─── Page layout ────────────────────────────────────────────────── */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 4.5rem 2rem 8rem;
}
main.wide { max-width: var(--max-w-wide); }

/* ─── Page header ────────────────────────────────────────────────── */
.page-header {
  padding: 1rem 0 3.5rem;
  margin-bottom: 0;
}
.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.04em;
  color: var(--ink);
}
.page-header .subtitle {
  font-family: var(--font-ui);
  font-size: .7rem;
  color: var(--ink-soft);
  margin-top: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}

/* ─── Fading divider ─────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%, var(--border-soft) 15%,
    var(--border-soft) 85%, transparent 100%);
  margin: 3.5rem 0;
}

/* ─── Section headings ───────────────────────────────────────────── */
h2 {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--ink);
  margin: 3.5rem 0 1.5rem;
  letter-spacing: -.015em;
}
h3 {
  font-family: var(--font-ui);
  font-size: .66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--ink-soft);
  margin: 3rem 0 1.25rem;
}

/* ─── About page ─────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 195px;
  gap: 4.5rem;
  align-items: start;
}
.about-photo {
  border-radius: var(--r-card);
  border: 1px solid var(--border-faint);
  box-shadow:
    0 4px 12px var(--glow),
    0 20px 60px var(--glow-md);
}
.about-photo-wrap figcaption {
  font-family: var(--font-ui);
  font-size: .7rem;
  color: var(--ink-ghost);
  margin-top: .65rem;
  line-height: 1.5;
  text-align: center;
}

/* ─── Research themes grid ───────────────────────────────────────── */
.research-intro { margin-bottom: 2.5rem; }
.themes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(275px, 1fr));
  gap: 1.1rem;
  margin: 2rem 0 4rem;
}
.theme-tile {
  background: var(--surface-hi);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-card);
  padding: 1.85rem 1.75rem;
  cursor: pointer;
  position: relative;
  box-shadow:
    0 1px 3px var(--glow),
    0 6px 24px var(--glow);
  transition: box-shadow .28s, transform .24s, border-color .2s;
}
.theme-tile:hover {
  box-shadow:
    0 4px 12px var(--glow-md),
    0 20px 56px var(--glow-md);
  transform: translateY(-4px);
  border-color: var(--border-soft);
}
.theme-tile .tile-num {
  font-family: var(--font-ui);
  font-size: .63rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .55rem;
}
.theme-tile h4 {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.28;
  margin-bottom: .7rem;
  letter-spacing: -.015em;
}
.theme-tile .tile-lead {
  font-family: var(--font-ui);
  font-size: .83rem;
  color: var(--ink-soft);
  line-height: 1.6;
}
.theme-tile .tile-detail {
  display: none;
  margin-top: 1.3rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--border-faint);
  font-family: var(--font-ui);
  font-size: .83rem;
  color: var(--ink-mid);
  line-height: 1.68;
}
.theme-tile.open .tile-detail { display: block; }
.theme-tile .tile-toggle {
  position: absolute; top: 1.5rem; right: 1.5rem;
  width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: .95rem;
  color: var(--ink-ghost);
  transition: transform .22s, color .18s;
}
.theme-tile:hover .tile-toggle { color: var(--accent); }
.theme-tile.open .tile-toggle { transform: rotate(45deg); color: var(--accent); }

.theme-index {
  max-width: var(--max-w-wide);
  margin: -1.2rem 0 3.5rem;
  padding: 1.4rem 1.6rem 1.55rem;
  background: var(--surface-hi);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-card);
  box-shadow:
    0 1px 3px var(--glow),
    0 8px 28px var(--glow);
}
.theme-index h3 { margin: 0 0 1rem; }
.theme-index ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: .65rem 1rem;
  list-style: none;
}
.theme-index li {
  font-family: var(--font-ui);
  font-size: .78rem;
  line-height: 1.45;
  color: var(--ink-mid);
}
.theme-index span { font-weight: 600; }
.theme-index em {
  color: var(--accent);
  font-style: normal;
  white-space: nowrap;
}
.theme-index em::before { content: " ("; }
.theme-index em::after { content: ")"; }

/* tags */
.pill-list { display: flex; flex-wrap: wrap; gap: .35rem; margin: 1rem 0 0; }
.tag {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: .64rem;
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: rgba(122,48,32,0.07);
  color: var(--accent);
  padding: .2rem .6rem;
  border-radius: 20px;
  border: 1px solid rgba(122,48,32,0.12);
}

/* ─── Publications — card style ──────────────────────────────────── */
.pub-filters {
  display: flex; flex-wrap: wrap; gap: .45rem;
  margin-bottom: 2rem;
}
.pub-filter {
  font-family: var(--font-ui);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .04em;
  padding: .28rem .8rem;
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  cursor: pointer;
  background: transparent;
  color: var(--ink-soft);
  transition: all .18s;
}
.pub-filter:hover { border-color: var(--accent); color: var(--accent); }
.pub-filter.active { background: var(--accent); color: #fff; border-color: var(--accent); }

#pub-list { list-style: none; }

/* each card */
.pub-card {
  background: var(--surface-hi);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-card);
  box-shadow: 0 1px 4px var(--glow);
  margin-bottom: .65rem;
  overflow: hidden;
  transition: box-shadow .22s, transform .2s, border-color .2s;
}
.pub-card:hover {
  box-shadow: 0 4px 18px var(--glow-md);
  border-color: var(--border-soft);
}
.pub-card.expanded {
  box-shadow: 0 4px 20px var(--glow-md);
  border-color: var(--border-soft);
}

/* clickable top row */
.pub-card-main {
  display: grid;
  grid-template-columns: 38px 1fr 20px;
  gap: .85rem;
  padding: 1.1rem 1.25rem;
  cursor: pointer;
  align-items: start;
  user-select: none;
}
.pub-card-main:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: var(--r-card); }

.pub-card-year {
  font-family: var(--font-ui);
  font-size: .7rem;
  font-weight: 700;
  color: var(--accent);
  padding-top: .28rem;
  line-height: 1.2;
}
.pub-card-body { min-width: 0; }
.pub-card-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: .97rem;
  line-height: 1.42;
  letter-spacing: -.01em;
  margin-bottom: .22rem;
}
.pub-card-authors {
  font-family: var(--font-ui);
  font-size: .8rem;
  color: var(--ink-soft);
  margin-bottom: .15rem;
}
.pub-card-venue {
  font-family: var(--font-ui);
  font-size: .76rem;
  color: var(--ink-ghost);
  font-style: italic;
}
.pub-note {
  font-style: normal;
  color: var(--gold);
  font-weight: 500;
}
.pub-card-meta {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-top: .35rem;
}
.pub-type-tag {
  font-family: var(--font-ui);
  font-size: .63rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--gold);
  font-weight: 600;
}
.pub-card-hint {
  font-family: var(--font-ui);
  font-size: .63rem;
  color: var(--ink-ghost);
  letter-spacing: .04em;
}
.pub-card-chevron {
  font-size: .85rem;
  color: var(--ink-ghost);
  padding-top: .28rem;
  transition: transform .22s, color .18s;
  text-align: right;
  line-height: 1;
}
.pub-card.expanded .pub-card-chevron { transform: rotate(180deg); color: var(--accent); }

/* expandable links panel */
.pub-card-links {
  display: none;
  border-top: 1px solid var(--border-faint);
  background: var(--surface);
}
.pub-card-links.open { display: block; }
.pub-links-inner {
  padding: .85rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

/* link chip — bigger than before, icon+label */
.pub-link-card {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-ui);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .03em;
  padding: .45rem 1rem;
  border-radius: var(--r-sm);
  border: 1px solid rgba(46,107,101,0.38);
  color: var(--accent-2);
  background: rgba(46,107,101,0.04);
  text-decoration: none;
  transition: background .18s, color .18s, border-color .18s;
}
.pub-link-card:hover { background: var(--accent-2); color: #fff; border-color: var(--accent-2); opacity: 1; }
.pub-link-preprint {
  border-color: rgba(122,48,32,0.3);
  color: var(--accent);
  background: rgba(122,48,32,0.04);
}
.pub-link-preprint:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ─── Talks ──────────────────────────────────────────────────────── */
.talk-item {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 1rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--border-faint);
}
.talk-date {
  font-family: var(--font-ui);
  font-size: .71rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.4;
  padding-top: .22rem;
}
.talk-type {
  font-family: var(--font-ui);
  font-size: .61rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: .22rem;
}
.talk-title { font-family: var(--font-serif); font-weight: 700; font-size: .97rem; line-height: 1.4; }
.talk-event { font-family: var(--font-ui); font-size: .8rem; color: var(--ink-soft); margin-top: .15rem; }
.talk-location { font-family: var(--font-ui); font-size: .74rem; color: var(--ink-ghost); font-style: italic; margin-top: .1rem; }
.talk-video-link {
  display: inline-flex;
  margin-top: .6rem;
  font-family: var(--font-ui);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--accent-2);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.4rem 0 1rem;
}
.video-card {
  background: var(--surface-hi);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-card);
  overflow: hidden;
  box-shadow:
    0 1px 3px var(--glow),
    0 8px 28px var(--glow);
}
.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--ink);
}
.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-meta { padding: 1rem 1.05rem 1.1rem; }
.video-kicker {
  font-family: var(--font-ui);
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .4rem;
}
.video-meta h3 {
  font-family: var(--font-serif);
  font-size: .98rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
  margin: 0;
  line-height: 1.35;
}

/* ─── Teaching accordion ─────────────────────────────────────────── */
.seminar-item { border-bottom: 1px solid var(--border-faint); }
.seminar-header {
  display: grid;
  grid-template-columns: 110px 1fr 24px;
  gap: .75rem;
  align-items: start;
  padding: 1.2rem 0;
  cursor: pointer;
  user-select: none;
}
.seminar-header:hover .seminar-course { color: var(--accent); }
.seminar-term {
  font-family: var(--font-ui);
  font-size: .72rem;
  font-weight: 700;
  color: var(--accent);
  padding-top: .18rem;
}
.seminar-course {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: .97rem;
  line-height: 1.35;
  transition: color .18s;
}
.seminar-note {
  font-family: var(--font-ui);
  font-size: .71rem;
  color: var(--ink-ghost);
  margin-top: .22rem;
  font-style: italic;
}
.seminar-chevron {
  font-size: .85rem;
  color: var(--ink-ghost);
  padding-top: .35rem;
  transition: transform .22s, color .18s;
  text-align: right;
}
.seminar-item.open .seminar-chevron { transform: rotate(180deg); color: var(--accent); }
.seminar-abstract {
  display: none;
  padding: 0 0 1.4rem;
  padding-left: calc(110px + .75rem);
  font-family: var(--font-ui);
  font-size: .85rem;
  color: var(--ink-mid);
  line-height: 1.72;
}
.seminar-item.open .seminar-abstract { display: block; }
.no-abstract .seminar-header { cursor: default; }
.no-abstract .seminar-chevron { visibility: hidden; }

/* ─── Outreach card ──────────────────────────────────────────────── */
.outreach-card {
  background: var(--surface-hi);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-card);
  box-shadow:
    0 1px 3px var(--glow),
    0 8px 32px var(--glow);
  padding: 2rem 2.25rem;
  margin-bottom: 1.25rem;
  transition: box-shadow .28s, transform .24s;
}
.outreach-card:hover {
  box-shadow: 0 6px 24px var(--glow-md), 0 20px 60px var(--glow-md);
  transform: translateY(-3px);
}
.outreach-card h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: .65rem;
  letter-spacing: -.01em;
}
.outreach-card p {
  font-family: var(--font-ui);
  font-size: .87rem;
  color: var(--ink-mid);
  line-height: 1.72;
  margin-bottom: .5rem;
}

/* ─── Footer ─────────────────────────────────────────────────────── */
footer {
  padding: 3rem;
  text-align: center;
  font-family: var(--font-ui);
  font-size: .74rem;
  color: var(--ink-soft);
  letter-spacing: .03em;
}
footer a { color: var(--ink-soft); }
footer a:hover { color: var(--accent); opacity: 1; }

/* ─── Book showcase ───────────────────────────────────────────────── */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0 3.5rem;
}
.book-card {
  background: var(--surface-hi);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-card);
  box-shadow: 0 2px 8px var(--glow), 0 12px 40px var(--glow);
  overflow: hidden;
  transition: box-shadow .28s, transform .24s;
  display: flex;
  flex-direction: column;
}
.book-card:hover {
  box-shadow: 0 6px 24px var(--glow-md), 0 24px 64px var(--glow-md);
  transform: translateY(-4px);
}
.book-card-body {
  padding: 1.75rem 1.75rem 1.5rem;
  flex: 1;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}
.book-cover {
  flex: 0 0 88px;
  width: 88px;
  border-radius: 4px;
  border: 1px solid var(--border-faint);
  box-shadow: 2px 4px 12px rgba(0,0,0,0.12);
}
.book-cover-placeholder {
  flex: 0 0 88px;
  width: 88px;
  height: 120px;
  border-radius: 4px;
  background: var(--page);
  border: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-size: .6rem;
  color: var(--ink-ghost);
  text-transform: uppercase;
  letter-spacing: .06em;
  text-align: center;
  padding: .5rem;
}
.book-info { flex: 1; min-width: 0; }
.book-num {
  font-family: var(--font-ui);
  font-size: .63rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .45rem;
}
.book-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.015em;
  color: var(--ink);
  margin-bottom: .4rem;
}
.book-authors {
  font-family: var(--font-ui);
  font-size: .8rem;
  color: var(--ink-soft);
  margin-bottom: .3rem;
}
.book-publisher {
  font-family: var(--font-ui);
  font-size: .76rem;
  color: var(--ink-ghost);
  font-style: italic;
}
.book-desc {
  font-family: var(--font-ui);
  font-size: .84rem;
  line-height: 1.68;
  color: var(--ink-mid);
  padding: 0 1.75rem 1.5rem;
  border-top: 1px solid var(--border-faint);
  padding-top: 1.1rem;
}
.book-links {
  padding: .85rem 1.75rem 1.25rem;
  display: flex; gap: .5rem; flex-wrap: wrap;
  border-top: 1px solid var(--border-faint);
}
.book-link {
  font-family: var(--font-ui);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .22rem .75rem;
  border-radius: var(--r-sm);
  border: 1px solid rgba(46,107,101,0.4);
  color: var(--accent-2);
  text-decoration: none;
  transition: background .18s, color .18s;
}
.book-link:hover { background: var(--accent-2); color: #fff; opacity: 1; }

/* ─── Animations ─────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .6s cubic-bezier(.22,.68,0,1.1) both; }
.fade-up:nth-child(1) { animation-delay: .04s; }
.fade-up:nth-child(2) { animation-delay: .12s; }
.fade-up:nth-child(3) { animation-delay: .20s; }
.fade-up:nth-child(4) { animation-delay: .28s; }
.fade-up:nth-child(5) { animation-delay: .36s; }
.fade-up:nth-child(6) { animation-delay: .44s; }

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 700px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-photo-wrap { max-width: 180px; }
  main { padding: 3rem 1.5rem 5rem; }
  .nav-inner { padding: 0 1.5rem; }
  .nav-links {
    display: none; flex-direction: column;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: rgba(240,235,225,0.97);
    border-bottom: 1px solid var(--border-soft);
    padding: 1.25rem 1.5rem; gap: 1.25rem;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .seminar-header { grid-template-columns: 90px 1fr 20px; }
  .seminar-abstract { padding-left: 0; }
  .talk-item { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
}