/* ---------------------------------------------------------------
   Corentin Trévien — personal academic site
   Palette : ink / paper / slate / pine / rule
   Type    : Source Serif 4 (texte), IBM Plex Sans (navigation, labels)
--------------------------------------------------------------- */

:root {
  --ink:    #1b1e22;
  --slate:  #666c75;
  --pine:   #2f5d62;
  --pine-d: #21454a;
  --paper:  #ffffff;
  --panel:  #f6f6f3;
  --rule:   #e3e3de;

  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans:  "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;

  --measure: 34rem;
  --gap: 3.5rem;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  font-variant-numeric: oldstyle-nums;
}

a { color: var(--pine); text-decoration: none; border-bottom: 1px solid rgba(47, 93, 98, .3); }
a:hover { color: var(--pine-d); border-bottom-color: var(--pine-d); }
a:focus-visible { outline: 2px solid var(--pine); outline-offset: 2px; border-radius: 2px; }

/* ---------- top bar ---------- */

.topbar {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar__inner {
  max-width: 68rem;
  margin: 0 auto;
  padding: .9rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .75rem 1.5rem;
}

.wordmark {
  font-family: var(--sans);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink);
  border: 0;
}
.wordmark:hover { color: var(--pine); }

.nav { display: flex; gap: 1.5rem; }

.nav a {
  font-family: var(--sans);
  font-size: .82rem;
  letter-spacing: .05em;
  color: var(--slate);
  border: 0;
  padding-bottom: 2px;
}
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] {
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--pine);
}

/* ---------- layout ---------- */

.layout {
  max-width: 68rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: var(--gap);
  align-items: start;
}

/* ---------- sidebar ---------- */

.card { position: sticky; top: 5rem; }

.portrait {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
  background: var(--panel);
  display: block;
}

.portrait--empty {
  display: grid;
  place-items: center;
  font-family: var(--sans);
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--slate);
  border: 1px dashed var(--rule);
}

.card h1 {
  font-size: 1.32rem;
  font-weight: 600;
  line-height: 1.25;
  margin: 1.25rem 0 .35rem;
  letter-spacing: -.01em;
}

.card__role {
  font-family: var(--sans);
  font-size: .84rem;
  line-height: 1.45;
  color: var(--slate);
  margin: 0 0 1.25rem;
}

.meta { list-style: none; margin: 0; padding: 1.1rem 0 0; border-top: 1px solid var(--rule); }
.meta li { font-family: var(--sans); font-size: .84rem; margin-bottom: .5rem; color: var(--slate); }
.meta a { border: 0; }
.meta a:hover { text-decoration: underline; }

/* ---------- content ---------- */

.content { max-width: var(--measure); }
.content > *:first-child { margin-top: 0; }

.eyebrow {
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--pine);
  margin: 3rem 0 1rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--rule);
}
.content > .eyebrow:first-child { margin-top: 0; }

.lede { font-size: 1.12rem; line-height: 1.55; margin: 0 0 1.5rem; }

p { margin: 0 0 1.1rem; }

.plain { list-style: none; margin: 0; padding: 0; }
.plain li { margin-bottom: .9rem; }

/* entrées de publication : année en marge */

.entries { list-style: none; margin: 0; padding: 0; }

.entry {
  display: grid;
  grid-template-columns: 3.6rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
}
.entry:last-child { border-bottom: 0; }

.entry__year {
  font-family: var(--sans);
  font-size: .8rem;
  font-weight: 500;
  color: var(--slate);
  padding-top: .28rem;
  font-variant-numeric: lining-nums;
}

.entry__title { display: block; font-weight: 600; }
.entry__meta { display: block; font-size: .95rem; color: var(--slate); margin-top: .15rem; }
.entry__meta em { font-style: italic; }

.links {
  font-family: var(--sans);
  font-size: .78rem;
  letter-spacing: .04em;
  margin-top: .4rem;
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
}
.links a { border: 0; }
.links a::before { content: "↗ "; color: var(--slate); }
.links a:hover { text-decoration: underline; }

.note {
  font-family: var(--sans);
  font-size: .82rem;
  color: var(--slate);
  background: var(--panel);
  border-left: 2px solid var(--pine);
  padding: .85rem 1rem;
  margin: 2rem 0 0;
}

footer {
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: .78rem;
  color: var(--slate);
  padding: 1.5rem;
  text-align: center;
}

/* ---------- responsive ---------- */

@media (max-width: 46rem) {
  .layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-top: 2.25rem;
  }
  .card { position: static; display: grid; grid-template-columns: 6.5rem 1fr; gap: 1.25rem; align-items: center; }
  .card .portrait { grid-row: span 3; }
  .card h1 { margin-top: 0; }
  .card__role { margin-bottom: 0; }
  .meta { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; padding-top: .9rem; }
  .meta li { margin-bottom: 0; }
  .entry { grid-template-columns: 1fr; gap: .15rem; }
  .entry__year { padding-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}