/* Source Serif 4, self-hosted so the site makes no third-party requests.
   One variable file covers every weight the site uses (400/500/600/700).
   SIL Open Font License 1.1 - see assets/fonts/OFL.txt */
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url("assets/fonts/SourceSerif4-Variable.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --text: #1b201c;
  --muted: #61695f;
  --line: #dee1da;
  --blue: #14477d;
  --blue-soft: #e3ebf4;
  --green: #1f5132;
  --green-soft: #e2ece5;
  --linkedin: #0a66c2;
  --maxw: 1020px;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: var(--serif);  /* kept so old rules keep working; the site is all serif now */
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141714; --surface: #1c201c; --text: #e9ece7; --muted: #99a195;
    --line: #2b312b; --blue: #8ab8e8; --blue-soft: #18222e;
    --green: #7cc199; --green-soft: #1d2b22; --linkedin: #6ab3f2;
  }
}
:root[data-theme="dark"] {
  --bg: #141714; --surface: #1c201c; --text: #e9ece7; --muted: #99a195;
  --line: #2b312b; --blue: #8ab8e8; --blue-soft: #18222e;
  --green: #7cc199; --green-soft: #1d2b22; --linkedin: #6ab3f2;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--serif); font-size: 17px; line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Nav */
nav.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
nav.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 68px; padding-top: 10px; padding-bottom: 10px; }
nav.top .brand { display: block; line-height: 1.25; }
nav.top .brand:hover { text-decoration: none; }
nav.top .bname { display: block; font-family: var(--serif); font-weight: 600; font-size: 1.12rem; color: var(--text); }
nav.top .btitle { display: block; font-size: 0.78rem; color: var(--muted); }
nav.top ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 22px; }
nav.top li a { color: var(--muted); font-size: 0.92rem; }
nav.top li a:hover { color: var(--blue); text-decoration: none; }
nav.top li a.active { color: var(--text); font-weight: 500; }

/* Hero: photo left, bio right */
header.hero { padding: 40px 0 36px; }
header.hero .wrap { display: grid; grid-template-columns: 270px 1fr; gap: 44px; align-items: start; }
header.hero .portrait img {
  width: 270px; display: block; border-radius: 6px;
  box-shadow: 0 2px 14px rgba(0,0,0,0.13);
}
header.hero .bio { padding-top: 2px; }
header.hero .bio p { margin: 0 0 14px; font-size: 1.02rem; }
header.hero .bio p:last-child { margin-bottom: 0; }

/* Contact block under the photo */
.contact {
  margin: 12px 0 0; display: flex; align-items: center; gap: 10px;
  font-size: 0.88rem; white-space: nowrap;
}
.contact a, .contact .email { color: var(--muted); }
.contact a:hover { color: var(--blue); }
.contact .sep { color: var(--muted); opacity: 0.6; }
.contact a.li { display: inline-flex; align-items: center; color: var(--linkedin); }
.contact a.li svg { display: block; }
.contact a.li:hover { opacity: 0.8; }
.contact a.li:hover { text-decoration: none; }
.contact a.li:hover span { text-decoration: underline; }

@media (max-width: 720px) {
  header.hero { padding: 28px 0 24px; }
  header.hero .wrap { grid-template-columns: 1fr; gap: 24px; }
  header.hero .portrait img { width: 200px; }
  header.hero h1 { font-size: 2.2rem; }
  nav.top .wrap { min-height: 60px; gap: 14px; }
  nav.top .bname { font-size: 0.98rem; white-space: nowrap; }
  nav.top .btitle { font-size: 0.72rem; }
  nav.top ul { gap: 14px; }
  nav.top li a { font-size: 0.84rem; white-space: nowrap; }
}
@media (max-width: 430px) {
  nav.top .btitle { display: none; }
  nav.top .bname { font-size: 0.92rem; }
  nav.top ul { gap: 12px; }
  nav.top li a { font-size: 0.8rem; }
}

/* Page header (secondary pages) */
header.page { padding: 44px 0 8px; }
header.page h1 { font-family: var(--serif); font-weight: 600; font-size: 2.1rem; margin: 0 0 6px; letter-spacing: -0.01em; }
header.page .role { color: var(--muted); margin: 0 0 20px; }

/* Sections */
section { padding: 36px 0; border-top: 1px solid var(--line); }
section h2 { font-family: var(--serif); font-weight: 600; font-size: 1.6rem; margin: 0 0 22px; }
section h3 {
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--muted); font-weight: 600; margin: 52px 0 14px;
}
section h3:first-of-type { margin-top: 0; }


/* Papers */
.paper { padding: 16px 0; border-bottom: 1px dashed var(--line); }
.paper:last-child { border-bottom: 0; }
.paper .title { font-family: var(--serif); font-size: 1.15rem; font-weight: 700; margin: 0 0 4px; color: var(--blue); }
.paper .title a { color: inherit; font-weight: inherit; }
.paper .title a:hover { text-decoration: underline; }
.paper .meta { color: var(--muted); font-size: 0.93rem; margin: 0; }
.paper .status {
  color: var(--text); font-weight: 600; font-size: 0.9rem;
  margin-left: 9px; white-space: nowrap;
}
.paper .status::before {
  content: "\00B7"; margin-right: 9px; color: var(--muted); font-weight: 400;
}
.paper .tags { margin-top: 6px; font-size: 0.85rem; line-height: 1.9; }
.paper .tags > a { margin-right: 14px; text-decoration: underline; text-underline-offset: 2px; }

/* Abstract toggle: plain text, no pill */
details.abs { display: inline; }
details.abs > summary {
  display: inline; cursor: pointer; list-style: none;
  font-size: 0.85rem; font-weight: 400; color: var(--blue);
  text-decoration: underline; text-underline-offset: 2px;
}
details.abs > summary::-webkit-details-marker { display: none; }
details.abs > summary:hover { color: var(--text); }
details.abs > p {
  display: block; margin: 10px 0 2px;
  font-size: 1rem; line-height: 1.66; color: var(--muted);
  border-left: 2px solid var(--line); padding-left: 16px; max-width: 70ch;
  text-align: justify; text-justify: inter-word;
  hyphens: auto;
  hyphenate-limit-chars: 8 4 4;
  hyphenate-limit-lines: 2;
  -webkit-hyphenate-limit-lines: 2;
  -webkit-hyphenate-limit-before: 4;
  -webkit-hyphenate-limit-after: 4;
}

/* Lists */
ul.plain { list-style: none; padding: 0; margin: 0; }
ul.plain li { padding: 8px 0; border-bottom: 1px dashed var(--line); }
ul.plain li:last-child { border-bottom: 0; }
ul.plain .venue { color: var(--muted); font-size: 0.9rem; }
ul.plain .venue b { color: var(--text); font-weight: 600; }

/* Collapsible "Other" section */
details.more { margin-top: 24px; border-top: 1px solid var(--line); padding-top: 16px; }
details.more > summary {
  cursor: pointer; list-style: none; font-size: 0.8rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--muted); font-weight: 600;
  display: flex; align-items: center; gap: 8px;
}
details.more > summary::-webkit-details-marker { display: none; }
details.more > summary::before { content: "+"; font-size: 1rem; line-height: 1; color: var(--green); }
details.more[open] > summary::before { content: "\2212"; }
details.more > summary:hover { color: var(--blue); }
details.more > ul { margin-top: 14px; }
details.more li a { margin-left: 8px; font-size: 0.85rem; }

/* Teaching */
.teach { display: grid; grid-template-columns: 1fr auto; gap: 4px 24px; font-size: 0.95rem; }
.teach .inst { grid-column: 1 / -1; font-weight: 600; margin-top: 14px; }
.teach .inst:first-child { margin-top: 0; }
.teach .yrs { color: var(--muted); white-space: nowrap; }

footer { padding: 36px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.88rem; }
footer .privacy { margin: 10px 0 0; font-size: 0.82rem; color: var(--muted); }

/* Justification needs a wide enough measure; fall back to ragged right on phones */
@media (max-width: 560px) {
  details.abs > p { text-align: left; hyphens: manual; }
}