:root {
  --bg: #ffffff;
  --ink: #0b1220;
  --body: #1e293b;
  --muted: #475569;
  --line: #e2e8f0;
  --chip: #f1f5f9;
  --ok: #15803d;
  --wip: #b45309;
  --navy: #0d1b2a;            /* banner fade target; matches the photo's poster navy */
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1b2a; --ink: #ffffff; --body: #e3eaf2; --muted: #9fb3c8; --line: #1f3347; --chip: #132739;
    --ok: #4ade80; --wip: #fbbf24;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1b2a; --ink: #ffffff; --body: #e3eaf2; --muted: #9fb3c8; --line: #1f3347; --chip: #132739;
  --ok: #4ade80; --wip: #fbbf24;
}

/* Everything is sized in rem, so the whole page scales up on wide screens. */
html { font-size: clamp(16px, 0.55vw + 10px, 21px); }
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--body);
  font: 1rem/1.6 var(--sans); -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.page { max-width: 64rem; margin: 0 auto; padding: 2rem 1.5rem 3.5rem; }

/* hero: photo banner with name (left) and email (right) along the bottom */
.hero { position: relative; background: var(--navy); border: 1px solid var(--line); border-radius: 1.25rem; overflow: hidden; color: #fff; }
/* Full-bleed: the banner matches the photo's 2.5:1 crop, so nothing is cut or faded. */
.hero-photo { position: relative; aspect-ratio: 2.5 / 1; }
.hero-photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-photo::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 82%, var(--navy) 100%);
}
.hero-row {
  position: relative; display: flex; align-items: last baseline; justify-content: space-between; gap: 1.5rem;
  padding: 1.1rem 2rem 1.75rem;
}
h1 { font-size: 2.4rem; font-weight: 700; letter-spacing: -.035em; line-height: 1.1; color: #fff; margin: 0 0 .2rem; }
.status { margin: 0; color: #7cc4ff; font-weight: 600; font-size: 1.05rem; }
.nowrap { white-space: nowrap; }

/* Email, CV button and toggle share one centre line; .hero-row aligns that line's
   text baseline with the "Applying to PhD programs" baseline. */
.contact { display: flex; align-items: center; font-size: 1.05rem; }
.mail { display: flex; align-items: baseline; gap: .6rem; }
.contact .label { color: #9fb3c8; font-weight: 500; font-size: .95rem; }
.email { color: #fff; font-weight: 600; border-bottom: 1px solid rgba(255, 255, 255, .3); transition: border-color .15s; }
.email:hover { border-color: #fff; }
.cv {
  margin-left: .9rem; padding: .35rem .95rem; border-radius: 999px;
  background: #fff; color: var(--navy); font-weight: 600; font-size: .95rem; white-space: nowrap; transition: opacity .15s;
}
.cv:hover { opacity: .85; }
#theme {
  margin-left: 1rem;
  width: 1rem; height: 1rem; border-radius: 50%; border: 1.5px solid #9fb3c8; padding: 0; cursor: pointer;
  background: linear-gradient(90deg, #9fb3c8 50%, transparent 50%);
}

/* highlights: 2x2 grid split by hairlines */
.grid { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: repeat(6, auto); margin-top: .75rem; }
/* Each cell spans three shared rows (title, sub, content), so a wrapped title in one cell
   moves the other cell's rows down with it and the paper and chip rows stay level. */
.cell { display: grid; grid-template-rows: subgrid; grid-row: span 3; padding: 2.1rem 2.75rem 2.1rem 0; border-bottom: 1px solid var(--line); }
.cell h2 { align-self: end; }
.cell:nth-child(2n) { padding: 2.1rem 0 2.1rem 2.75rem; border-left: 1px solid var(--line); }
.cell:nth-last-child(-n+2) { border-bottom: 0; }

.cell h2 { font-size: 1.65rem; font-weight: 700; letter-spacing: -.025em; line-height: 1.2; color: var(--ink); margin: 0 0 .3rem; }
.cell .sub { margin: 0 0 1.1rem; color: var(--muted); font-size: .95rem; font-weight: 500; }
.cell p { margin: 0; font-size: 1.05rem; color: var(--body); font-weight: 500; }

.venues { list-style: none; margin: 0; padding: 0; }
.venues li {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .7rem;
  min-height: 3rem; padding: .25rem 0; border-top: 1px solid var(--line);
}
.venues li:last-child { border-bottom: 1px solid var(--line); }
.venues b { font-weight: 650; color: var(--ink); font-size: 1.05rem; }
/* Names with a project page are links: underline and an arrow. */
.venues a b { text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
.venues a::after { content: " ↗"; font-weight: 600; font-size: .9em; }
.venues a:hover { opacity: .8; }
.kind { color: var(--muted); font-size: .95rem; }
.st { font-size: .9rem; font-weight: 600; white-space: nowrap; }
.st::before { content: ""; display: inline-block; width: .45rem; height: .45rem; border-radius: 50%; background: currentColor; margin-right: .45rem; vertical-align: .1rem; }
.st.ok { color: var(--ok); }
.st.wip { color: var(--wip); }

/* Three chip rows, each the same height as a paper row, so the two top cells line up. */
.tags > div { display: flex; flex-wrap: wrap; align-items: center; gap: .55rem; min-height: 3rem; padding: .25rem 0; }
.tags span {
  padding: .4rem .85rem; border-radius: 999px; background: var(--chip); border: 1px solid var(--line);
  color: var(--ink); font-size: .95rem; font-weight: 600;
}

/* project row under the grid: thumbnail, title + description, link */
.project { display: grid; grid-template-columns: 9rem 1fr auto; grid-template-areas: "img head go" "img desc go";
  align-items: center; column-gap: 1.75rem; row-gap: .2rem;
  margin-top: .5rem; padding: 1.6rem 0 0; border-top: 1px solid var(--line); }
.project img { grid-area: img; width: 100%; display: block; background: #fff; border: 1px solid var(--line); border-radius: .75rem; }
.project .head { grid-area: head; align-self: end; display: flex; flex-wrap: wrap; align-items: baseline; column-gap: .6rem; }
.project h2 { font-size: 1.35rem; font-weight: 700; letter-spacing: -.02em; color: var(--ink); margin: 0; }
.project .meta { color: var(--muted); font-weight: 500; font-size: .95rem; }
.project p { grid-area: desc; align-self: start; margin: 0; font-size: 1.02rem; font-weight: 500; }
.project .go { grid-area: go; padding: .4rem 1rem; border-radius: 999px; border: 1px solid var(--line); background: var(--chip);
  color: var(--ink); font-weight: 600; font-size: .95rem; white-space: nowrap; }
.project:hover .go { border-color: var(--ink); }

@media (max-width: 760px) {
  .page { padding: 1rem 1rem 2.5rem; }
  .hero-photo { aspect-ratio: 4 / 3; }
  .hero-photo img { width: 100%; object-fit: cover; object-position: 61% center; }
  .hero-row { flex-direction: column; align-items: flex-start; gap: .9rem; padding: 0 1.25rem 1.25rem; }
  h1 { font-size: 2rem; }
  #theme { display: none; }
  .contact { flex-wrap: wrap; gap: .9rem; }
  .cv { margin-left: 0; }
  .grid { grid-template-columns: 1fr; grid-template-rows: none; }
  .cell { display: block; grid-row: auto; }
  .cell, .cell:nth-child(2n), .cell:nth-last-child(-n+2) { padding: 1.75rem 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .cell:last-child { border-bottom: 0; }
  .project { grid-template-columns: 5.5rem 1fr; grid-template-areas: "img head" "desc desc" "go go"; column-gap: 1rem; row-gap: .9rem; padding-top: 1.75rem; }
  .project .head { align-self: center; flex-direction: column; align-items: flex-start; }
  .project .go { justify-self: start; }
}