/* Andre Gentil — light, Apple-inspired: one sans family, big tight headlines, generous white space, soft gray tiles, pill buttons. */
:root {
  --bg: #ffffff;
  --tile: #f5f5f7;
  --surface: #ffffff;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --faint: #86868b;
  --line: #e5e5ea;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --accent-ink: #0066cc;
  --radius: 22px;
  --radius-sm: 14px;
  --shadow: 0 2px 6px rgba(0, 0, 0, .04), 0 12px 32px rgba(0, 0, 0, .06);
  --f: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg); color: var(--ink);
  font: 400 17px/1.55 var(--f);
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  letter-spacing: -.011em;
}
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: 1080px; margin: 0 auto; padding-left: max(22px, env(safe-area-inset-left, 0px)); padding-right: max(22px, env(safe-area-inset-right, 0px)); }
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
strong { font-weight: 600; }

/* header: sticky translucent bar */
.nav-bar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, .78);
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, .08);
}
header.nav { display: flex; flex-wrap: wrap; gap: 6px 28px; align-items: center; justify-content: space-between; min-height: 52px; padding-block: 8px; }
.brand { font: 600 17px/1 var(--f); letter-spacing: -.02em; color: var(--ink); }
.brand:hover { text-decoration: none; }
nav ul { display: flex; flex-wrap: wrap; gap: 4px 24px; list-style: none; margin: 0; padding: 0; font-size: 13.5px; letter-spacing: -.005em; }
nav a { color: var(--ink); opacity: .8; }
nav a:hover { opacity: 1; text-decoration: none; }
nav a[aria-current="page"] { opacity: 1; font-weight: 600; }

/* type */
.eyebrow { font: 600 14px/1.4 var(--f); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; }
h1 { font: 700 clamp(48px, 8.4vw, 92px)/1.02 var(--f); letter-spacing: -.045em; margin: 0 0 14px; text-wrap: balance; }
h1.page { font-size: clamp(40px, 6.4vw, 72px); letter-spacing: -.04em; margin-bottom: 18px; }
h2.sec { font: 700 clamp(30px, 4.2vw, 44px)/1.08 var(--f); letter-spacing: -.035em; margin: 0; text-wrap: balance; }
h3 { font: 600 20px/1.25 var(--f); letter-spacing: -.02em; margin: 0 0 14px; }
.crm { font: 500 15px/1.4 var(--f); color: var(--muted); letter-spacing: 0; margin: 0 0 26px; }
.lede { font: 400 clamp(19px, 2.2vw, 23px)/1.45 var(--f); letter-spacing: -.02em; color: var(--muted); max-width: 36em; margin: 0 0 34px; text-wrap: pretty; }
.prose p { max-width: 42em; margin: 0 0 20px; font-size: 18px; line-height: 1.65; color: #333336; }

/* page head */
.page-head { padding-block: clamp(64px, 10vw, 120px) 24px; text-align: center; }
.page-head .lede { margin-inline: auto; }
.page-head .ids { justify-content: center; }

/* hero */
.hero { display: flex; flex-direction: column; align-items: center; text-align: center; padding-block: clamp(72px, 12vw, 140px) 48px; animation: rise .7s cubic-bezier(.2, .7, .2, 1) both; }
.hero .lede { margin-inline: auto; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* buttons */
.ids { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.ids a {
  font: 500 15px/1 var(--f); letter-spacing: -.01em; padding: 12px 20px; border-radius: 980px;
  color: var(--accent-ink); background: var(--tile); transition: background-color .2s, color .2s, transform .2s;
}
.ids a:hover { background: #e8e8ed; text-decoration: none; }
.ids a.primary { background: var(--accent); color: #fff; }
.ids a.primary:hover { background: var(--accent-hover); }

/* stat tiles */
.stats { width: 100%; margin-top: clamp(56px, 8vw, 96px); background: var(--tile); border-radius: var(--radius); padding: clamp(28px, 4vw, 44px) clamp(20px, 3vw, 40px); }
.stats h2 { font: 600 14px/1.3 var(--f); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin: 0 0 24px; text-align: center; }
.stats ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; text-align: center; }
.stats li strong { display: block; font: 700 clamp(40px, 5.6vw, 64px)/1 var(--f); letter-spacing: -.045em; font-variant-numeric: tabular-nums; color: var(--ink); }
.stats li span { display: block; margin-top: 10px; font-size: 15px; color: var(--muted); }
.stats p { margin: 26px 0 0; font-size: 13px; color: var(--faint); text-align: center; }

/* sections */
section { padding-block: clamp(40px, 5.5vw, 64px); }
.sec-head { display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; align-items: baseline; margin-bottom: 36px; }
.sec-head a { font-size: 17px; }
.note { font-size: 14px; color: var(--muted); margin: 0; }

/* timeline as tiles */
ol.timeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
ol.timeline li { background: var(--tile); border-radius: var(--radius-sm); padding: 22px 22px 24px; }
.when { font: 600 13px/1.3 var(--f); color: var(--accent); font-variant-numeric: tabular-nums; letter-spacing: 0; }
.what { font: 600 19px/1.3 var(--f); letter-spacing: -.02em; margin: 10px 0 4px; }
.where { font-size: 15px; color: var(--muted); }

/* lists */
.cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.cols > div { background: var(--tile); border-radius: var(--radius); padding: 32px; }
.cols ul, ul.plain { margin: 0; padding: 0; list-style: none; display: grid; gap: 0; font-size: 16px; }
.cols li, ul.plain li { padding: 12px 0; border-top: 1px solid rgba(0, 0, 0, .07); }
.cols li:first-child { border-top: 0; padding-top: 0; }
ul.plain { background: var(--tile); border-radius: var(--radius); padding: 14px 32px; }
ul.plain li:first-child { border-top: 0; }

/* member list */
dl.members { margin: 0; display: grid; grid-template-columns: minmax(0, 1fr) auto; background: var(--tile); border-radius: var(--radius); padding: 14px 32px; font-size: 16px; max-width: 640px; }
dl.members dt, dl.members dd { margin: 0; padding: 12px 0; border-top: 1px solid rgba(0, 0, 0, .07); }
dl.members dt:first-of-type, dl.members dd:first-of-type { border-top: 0; }
dl.members dd { color: var(--muted); font-variant-numeric: tabular-nums; text-align: right; font-size: 15px; }
dl.members .self { font-weight: 600; }

/* publications */
ol.pubs { list-style: none; margin: 0; padding: 0; }
ol.pubs li {
  display: grid; grid-template-columns: 64px minmax(0, 1fr) auto; gap: 20px; align-items: start;
  padding-block: 22px; border-bottom: 1px solid var(--line);
}
ol.pubs li:first-child { border-top: 1px solid var(--line); }
ol.pubs.with-covers li { grid-template-columns: 76px minmax(0, 1fr) auto; }
.cover { width: 76px; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 8px; background: var(--tile); box-shadow: var(--shadow); }
.cover-empty { width: 76px; aspect-ratio: 3 / 4; border-radius: 8px; background: var(--tile); }
.year { font: 600 15px/1.5 var(--f); color: var(--faint); font-variant-numeric: tabular-nums; }
.cite-title { font: 600 18px/1.35 var(--f); letter-spacing: -.02em; margin: 0 0 6px; overflow-wrap: anywhere; }
.cite-meta { font-size: 15px; color: var(--muted); margin: 0; }
.cite-meta i { font-style: normal; color: var(--ink); }
.pub-link { font: 500 15px/1.5 var(--f); white-space: nowrap; }
.year-head { font: 700 28px/1 var(--f); letter-spacing: -.03em; color: var(--ink); margin: 52px 0 16px; font-variant-numeric: tabular-nums; }
.year-head:first-child { margin-top: 0; }
.status { padding: 24px 0; color: var(--muted); }
.skeleton li { opacity: .5; }
.skeleton .bar { height: 14px; background: var(--tile); border-radius: 7px; margin-bottom: 8px; }

/* table */
.table-wrap { overflow-x: auto; background: var(--tile); border-radius: var(--radius); padding: 8px 32px; }
table.cited { border-collapse: collapse; width: 100%; font-size: 16px; }
table.cited th, table.cited td { text-align: left; padding: 16px 16px 16px 0; border-bottom: 1px solid rgba(0, 0, 0, .07); vertical-align: top; }
table.cited tbody tr:last-child td { border-bottom: 0; }
table.cited th { font: 600 12px/1.3 var(--f); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
table.cited td.num { font: 700 20px/1.3 var(--f); letter-spacing: -.02em; font-variant-numeric: tabular-nums; text-align: right; padding-right: 0; padding-left: 16px; }
table.cited th.num { text-align: right; padding-right: 0; }
table.cited td.yr { color: var(--muted); font-variant-numeric: tabular-nums; }
table.cited .note i { font-style: normal; }

/* scholar charts */
.charts { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 16px; align-items: stretch; }
.charts figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; display: flex; align-items: center; }
.charts figure.scholar { flex-direction: column; align-items: stretch; justify-content: space-between; gap: 18px; }
.charts figcaption { font-size: 14px; font-weight: 600; color: var(--muted); text-align: center; }
.scholar-tbl { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
.scholar-tbl th, .scholar-tbl td { padding: 6px 4px; text-align: right; border-bottom: 1px solid var(--line); }
.scholar-tbl tbody th { text-align: left; font-weight: 400; }
.scholar-tbl thead th { color: var(--muted); font-weight: 500; font-size: 13px; }
.scholar-tbl td { font-weight: 600; }
svg.bars { width: 100%; height: auto; display: block; }
svg.bars text { font: 500 11px var(--f); fill: var(--muted); }
svg.bars .grid line { stroke: var(--line); stroke-width: 1; }
svg.bars .bar rect { fill: #86868b; }
svg.bars .bar rect:hover { fill: var(--accent); }
svg.bars.narrow { display: none; }

/* certificate gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 28px 20px; }
.gallery figure { margin: 0; }
.gallery a { display: block; background: var(--tile); border-radius: var(--radius); padding: 22px; transition: transform .3s cubic-bezier(.2, .7, .2, 1), box-shadow .3s; }
.gallery a:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; border-radius: 4px; }
.gallery figcaption { font-size: 15px; color: var(--ink); margin: 12px 4px 0; line-height: 1.4; }

/* contact */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
.contact-grid > div { background: var(--tile); border-radius: var(--radius); padding: clamp(28px, 4vw, 44px); }
.contact-grid h3 { font-size: 14px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
address { font-style: normal; line-height: 1.7; font-size: 19px; letter-spacing: -.015em; margin-bottom: 18px; }
.big-phone { font: 700 clamp(32px, 4.4vw, 44px)/1.1 var(--f); letter-spacing: -.03em; margin: 0; }
.big-phone a { color: var(--ink); }

/* footer */
.foot-bar { background: var(--tile); margin-top: clamp(40px, 6vw, 80px); }
footer.site { padding-block: 22px 32px; display: flex; flex-wrap: wrap; gap: 8px 28px; justify-content: space-between; align-items: flex-end; font-size: 12.5px; line-height: 1.6; color: var(--muted); letter-spacing: 0; }

@media (max-width: 760px) {
  body { font-size: 16px; }
  .stats ul { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 12px; }
  .cols, .contact-grid, .charts { grid-template-columns: minmax(0, 1fr); }
  svg.bars.wide { display: none; }
  svg.bars.narrow { display: block; }
  .cols > div, ul.plain, dl.members, .table-wrap { padding-inline: 22px; }
  ol.pubs li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  ol.pubs.with-covers li { grid-template-columns: 60px minmax(0, 1fr); gap: 16px; }
  ol.pubs.with-covers .pub-link { grid-column: 2; }
  .cover, .cover-empty { width: 60px; }
  header.nav nav { width: 100%; }
  nav ul { gap: 2px 12px; font-size: 13px; justify-content: space-between; }
}
@media (max-width: 370px) {
  nav ul { gap: 2px 8px; font-size: 12.5px; letter-spacing: -.01em; }
}
@media (max-width: 340px) {
  .nav-bar .wrap { padding-left: 14px; padding-right: 14px; }
  nav ul { gap: 2px 6px; font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .hero { animation: none; }
  .gallery a, .ids a { transition: none; }
  html { scroll-behavior: auto; }
}