/* Minimal academic design — inspired by apetersonsite.org */
:root {
  --max:      1400px;
  --bg:       #ffffff;
  --text:     #1a1a1a;
  --muted:    #666;
  --link:     #0550ae;
  --border:   #e8e8e8;
  --surface:  #f5f5f5;
  --nav-bg:   #1a1a2e;
  --nav-text: #ffffff;
  --nav-muted:#e0e0e0;
}
[data-theme="dark"] {
  --bg:       #111111;
  --text:     #eeeeee;
  --muted:    #999;
  --link:     #79aaff;
  --border:   #2e2e2e;
  --surface:  #1e1e1e;
  --nav-bg:   #ffffff;
  --nav-text: #111111;
  --nav-muted:#555555;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg);
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
strong { font-weight: 600; }
em { font-style: italic; }
p { margin-bottom: .8rem; }
p:last-child { margin-bottom: 0; }

/* ── NAV ── */
.site-nav { border-bottom: 1px solid var(--border); padding: 1rem 2.5rem; background: var(--nav-bg); }
.site-nav-inner {
  max-width: var(--max); margin: 0 auto;
  display: flex; align-items: center; gap: 1rem;
}
.nav-brand { font-weight: 700; color: var(--nav-text); font-size: 1.25rem; margin-right: auto; text-decoration: none; }
.nav-brand:hover { text-decoration: none; color: var(--nav-text); }
.nav-links { display: flex; gap: 1.6rem; list-style: none; flex-wrap: wrap; }
.nav-links a { color: var(--nav-muted); font-size: 1.05rem; }
.nav-links a:hover { color: var(--nav-text); text-decoration: underline; }
.nav-links a.active { color: var(--nav-text); font-weight: 700; }
.nav-cv a { color: var(--nav-text) !important; font-weight: 700; }

/* ── THEME TOGGLE ── */
#theme-toggle {
  background: none; border: 1.5px solid var(--nav-text); color: var(--nav-text);
  border-radius: 50%; width: 32px; height: 32px; font-size: 1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-left: .5rem; transition: background .2s, color .2s;
}
#theme-toggle:hover { background: var(--nav-text); color: var(--nav-bg); }

/* ── PAGE ── */
.page { max-width: var(--max); margin: 0 auto; padding: 2.5rem 2.5rem 5rem; }

/* ── HOME TWO-COLUMN LAYOUT ── */
.home-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: start;
}
.home-left {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  padding: 2.5rem 3rem 2.5rem 0;
  border-right: 1px solid var(--border);
}
.hl-photo {
  width: 100%; max-width: 280px;
  border-radius: 4px;
  object-fit: cover; display: block;
  margin-bottom: 1.1rem;
}
.hl-name  { font-size: 1.8rem; font-weight: 700; margin-bottom: .9rem; }
.hl-links {
  display: flex; flex-direction: row; flex-wrap: wrap;
  justify-content: center; gap: .4rem;
  margin-top: 0;
}
.hl-links a {
  display: inline-block;
  font-size: .84rem; color: var(--text); font-weight: 500;
  padding: .28rem .75rem;
  border: 1.5px solid #bbb; border-radius: 20px;
}
.hl-links a:hover { border-color: var(--text); background: var(--text); color: var(--bg); text-decoration: none; }
.hl-links .lk-resume { font-weight: 600; }

.home-right { padding: 1rem 0 2.5rem 3rem; }
.home-right .sh { border-bottom: none; padding-bottom: 0; }

/* ── HOME MORE ── */
.home-more { font-size: .93rem; line-height: 1.75; margin-top: .5rem; }
.home-more a { color: var(--link); }
.home-more a:hover { text-decoration: underline; }

/* ── HOME PAGE LINKS (Adam-style) ── */
.home-page-links { margin-top: .5rem; }
.pl-item {
  font-size: .97rem; line-height: 1.7;
  margin-bottom: .55rem;
}
.pl-item a { font-weight: 700; color: var(--link); text-decoration: underline; }
.pl-item a:hover { color: var(--text); }
.pl-desc { color: var(--text); }

/* ── BIO ── */
.bio { font-size: .93rem; margin-bottom: 1.5rem; line-height: 1.75; }
.bio a { color: var(--link); }
.bio a:hover { text-decoration: underline; }

/* ── HERO (non-home pages, kept for fallback) ── */
.hero { display: flex; gap: 1.75rem; align-items: flex-start; margin-bottom: 2.25rem; }
.hero-photo { width: 130px; height: 130px; border-radius: 50%; object-fit: cover; flex-shrink: 0; border: 1px solid var(--border); }
.hero-name { font-size: 1.7rem; font-weight: 700; margin-bottom: .12rem; letter-spacing: -.01em; }
.hero-role { color: var(--muted); font-size: .9rem; margin-bottom: .12rem; }
.hero-affil { color: var(--muted); font-size: .83rem; line-height: 1.45; margin-bottom: 1rem; }
.social-links { display: flex; gap: .3rem; flex-wrap: wrap; }
.social-links a {
  display: inline-block; padding: .25rem .65rem;
  font-size: .8rem; color: var(--muted);
  border: 1px solid var(--border); border-radius: 3px;
}
.social-links a:hover { color: var(--text); border-color: #bbb; text-decoration: none; }
.social-links .s-cv { background: var(--text); color: #fff; border-color: var(--text); font-weight: 600; }
.social-links .s-cv:hover { background: #333; color: #fff; }
.social-links .s-resume { background: #0550ae; color: #fff; border-color: #0550ae; font-weight: 600; }
.social-links .s-resume:hover { background: #033d8b; color: #fff; }

/* ── SECTION HEADINGS ── */
h2.sh {
  font-size: 1.05rem; font-weight: 700; color: var(--text);
  margin: 2rem 0 .9rem; padding-bottom: .3rem;
  border-bottom: 1px solid var(--border);
}
h3.yh {
  font-size: .78rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .08em; color: var(--muted); margin: 1.6rem 0 .7rem;
}
.page-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 1.75rem; }

/* ── BADGES ── */
.badge { display: inline-block; font-size: .64rem; font-weight: 700; padding: .08rem .38rem; border-radius: 2px; margin-left: .22rem; vertical-align: middle; }
.b-pub   { background: #dcfce7; color: #166534; }
.b-rev   { background: #fef9c3; color: #713f12; }
.b-prep  { background: #f1f5f9; color: #475569; }
.badge-new { background: #fef3c7; color: #92400e; font-size: .64rem; font-weight: 700; padding: .07rem .38rem; border-radius: 2px; letter-spacing: .05em; text-transform: uppercase; margin-left: .3rem; vertical-align: middle; }

/* ── HIGHLIGHT CARDS (What's New) ── */
.highlight { padding: .9rem 0; border-bottom: 1px solid var(--border); }
.highlight:last-child { border-bottom: none; }
.hi-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin-bottom: .3rem; }
.hi-title { font-weight: 700; font-size: .97rem; }
.hi-date  { font-size: .82rem; color: var(--muted); white-space: nowrap; }
.hi-sub   { font-size: .85rem; color: var(--muted); margin-bottom: .4rem; }
.hi-list  { padding-left: 1.2rem; font-size: .88rem; color: #333; }
.hi-list li { margin-bottom: .25rem; line-height: 1.6; }

/* ── HIGHLIGHT PHOTO ── */
.hi-photo {
  display: block; margin-top: 1rem;
  width: 100%; max-width: 480px;
  border-radius: 4px; border: 1px solid var(--border);
  object-fit: cover;
}

/* ── PAPERS ── */
.paper { padding: .75rem 0; border-bottom: 1px solid var(--border); }
.paper:last-child { border-bottom: none; }
.paper-title { font-style: italic; margin-bottom: .15rem; font-size: .93rem; }
.paper-authors { font-size: .83rem; color: var(--muted); margin-bottom: .08rem; }
.paper-journal { font-size: .83rem; }
.paper-journal a { color: var(--link); }

/* ── RESEARCH TAGS ── */
.tag-wrap { display: flex; flex-wrap: wrap; gap: .3rem; margin: .6rem 0 1.25rem; }
.tag { display: inline-block; background: var(--surface); color: var(--text); font-size: .78rem; padding: .18rem .58rem; border-radius: 3px; }

/* ── GRANT ITEMS ── */
.grant { padding: .65rem 0; border-bottom: 1px solid var(--border); }
.grant:last-child { border-bottom: none; }
.grant-id { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.grant-name { font-size: .91rem; margin: .1rem 0; }
.grant-pi { font-size: .82rem; color: var(--muted); }

/* ── SKILLS GRID ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; margin: .65rem 0 1.5rem; }
.g-box { border: 1px solid var(--border); border-radius: 3px; padding: .8rem .9rem; background: var(--surface); }
.g-box h4 { font-size: .71rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); margin-bottom: .42rem; }
.g-box p { font-size: .85rem; line-height: 1.6; }

/* ── TEACHING TABLE ── */
.t-table { width: 100%; border-collapse: collapse; font-size: .86rem; margin: .65rem 0; }
.t-table th { text-align: left; font-size: .73rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding: .44rem .5rem; border-bottom: 2px solid var(--border); }
.t-table td { padding: .5rem .5rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.t-table tr:last-child td { border-bottom: none; }
.rt { display: inline-block; font-size: .67rem; font-weight: 700; padding: .1rem .38rem; border-radius: 2px; white-space: nowrap; }
.r-inst  { background: #dbeafe; color: #1e40af; }
.r-ta    { background: #f0fdf4; color: #166534; }
.r-guest { background: #faf5ff; color: #6d28d9; }
.r-fellow{ background: #fff7ed; color: #9a3412; }
.r-tutor { background: #f1f5f9; color: #475569; }
.t-resp  { font-size: .8rem; color: #444; line-height: 1.5; }
.t-resp a { color: var(--link); }

/* ── TALKS ── */
.talk { display: flex; gap: .9rem; padding: .65rem 0; border-bottom: 1px solid var(--border); }
.talk:last-child { border-bottom: none; }
.t-year { flex-shrink: 0; width: 36px; font-weight: 700; color: var(--muted); font-size: .8rem; padding-top: .07rem; }
.t-title { font-style: italic; font-size: .91rem; margin-bottom: .08rem; }
.t-venue { font-size: .8rem; color: var(--muted); }

/* ── SERVICE ── */
.svc-2 { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; margin: .65rem 0; }
.svc-box { border: 1px solid var(--border); border-radius: 3px; padding: .8rem .9rem; background: var(--surface); }
.svc-box h3 { font-size: .71rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: .5rem; padding-bottom: .28rem; border-bottom: 1px solid var(--border); }
.svc-box ul { list-style: none; padding: 0; }
.svc-box li { font-size: .85rem; padding: .1rem 0 .1rem .65rem; position: relative; }
.svc-box li::before { content: '–'; position: absolute; left: 0; color: #ccc; }

/* ── TRAINING ── */
.train { display: flex; gap: .9rem; padding: .55rem 0; border-bottom: 1px solid var(--border); }
.train:last-child { border-bottom: none; }
.tr-yr { flex-shrink: 0; width: 36px; font-weight: 700; color: var(--muted); font-size: .8rem; }
.tr-nm { font-size: .87rem; }

/* ── GALLERY ── */
.gal-label { font-size: .73rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); display: block; margin: 1.5rem 0 .6rem; }
.photo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; margin-bottom: 1.5rem; }
.photo-card { border: 1px solid var(--border); border-radius: 3px; overflow: hidden; }
.photo-card img { width: 100%; height: 195px; object-fit: cover; object-position: top center; display: block; }
.photo-cap { padding: .38rem .6rem; }
.photo-cap strong { display: block; font-size: .8rem; color: var(--text); }
.photo-cap span { font-size: .74rem; color: var(--muted); }

/* ── FOOTER ── */
.site-footer { border-top: 1px solid var(--border); }
.site-footer-inner { max-width: var(--max); margin: 0 auto; padding: 1.1rem 2.5rem; font-size: .78rem; color: #999; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .5rem; }
.site-footer-inner a { color: #999; }
.site-footer-inner a:hover { color: var(--muted); text-decoration: underline; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .home-wrap { grid-template-columns: 1fr; }
  .hl-photo { width: 160px; height: 160px; }
  .hero { flex-direction: column; gap: 1rem; }
  .hero-photo { display: none; }
  .hero-name { font-size: 1.4rem; }
  .grid-2, .svc-2, .photo-grid { grid-template-columns: 1fr; }
  .nav-links { gap: .75rem; }
  .nav-links a { font-size: .78rem; }
}