/* Beliveau Lab — beliveau.io
   Palette and type chosen to echo the existing site: serif display, clean
   sans body, UW-leaning blues on white. */

:root {
  --ink:        #1c2733;
  --muted:      #5a6b7b;
  --line:       #e3e8ee;
  --bg:         #ffffff;
  --bg-soft:    #f6f8fa;
  --blue:       #2a5d8f;   /* primary */
  --blue-dark:  #1d4670;
  --blue-deep:  #163b5c;
  --accent:     #c0563b;   /* warm rust, used sparingly */
  --maxw:       1080px;
  --radius:     10px;
  --shadow:     0 1px 3px rgba(22,59,92,.08), 0 6px 20px rgba(22,59,92,.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Source Sans 3", "Source Sans Pro", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
  font-family: "Inria Serif", Georgia, "Times New Roman", serif;
  color: var(--blue-deep);
  line-height: 1.2;
  font-weight: 700;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---- Header / nav ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.94);
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 24px; max-width: var(--maxw); margin: 0 auto;
}
.brand {
  font-family: "Inria Serif", Georgia, serif;
  font-weight: 700; font-size: 1.25rem; color: var(--blue-deep);
  letter-spacing: .2px; white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; }
.nav-links a {
  color: var(--ink); padding: 7px 12px; border-radius: 7px;
  font-size: .96rem; font-weight: 600;
}
.nav-links a:hover { background: var(--bg-soft); text-decoration: none; }
.nav-links a.active { color: var(--blue); background: #eaf1f8; }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--line);
  border-radius: 8px; padding: 8px 10px; cursor: pointer; font-size: 1.1rem;
}

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 8px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; border-radius: 8px; }
}

/* ---- Hero ---- */
.hero {
  background: linear-gradient(180deg, #f4f8fc 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
}
.hero .wrap { padding-top: 56px; padding-bottom: 56px; }
.hero-banner {
  display: block; width: 100%; max-width: 680px; height: auto;
  margin: 0 0 22px;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin: 0 0 6px; }
.hero .tagline {
  font-size: clamp(1.05rem, 2.4vw, 1.4rem); color: var(--blue);
  font-family: "Inria Serif", Georgia, serif; font-style: italic; margin: 0 0 22px;
}
.hero p { max-width: 70ch; color: var(--ink); }

/* ---- Page heading ---- */
.page-head { padding: 44px 0 8px; }
.page-head h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); margin: 0; }
.lead { color: var(--muted); max-width: 75ch; }

main { padding-bottom: 72px; }
section { margin-top: 40px; }
section > h2 {
  font-size: 1.6rem; margin: 0 0 18px; padding-bottom: 8px;
  border-bottom: 2px solid var(--line);
}

/* ---- Research cards ---- */
.research-grid {
  display: grid; gap: 22px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.research-card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; background: #fff; box-shadow: var(--shadow);
}
.research-fig {
  display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover;
  border-radius: calc(var(--radius) - 2px); margin: 0 0 16px; background: #eef2f6;
}
.research-card h3 { margin: 0 0 8px; font-size: 1.2rem; color: var(--blue-dark); }
.research-card p { margin: 0; color: var(--ink); font-size: .98rem; }

/* ---- Team grid ---- */
.team-grid {
  display: grid; gap: 26px 22px;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}
.member { text-align: center; }
.member .photo {
  width: 150px; height: 150px; margin: 0 auto 12px; border-radius: 50%;
  object-fit: cover; background: var(--bg-soft);
  border: 3px solid #fff; box-shadow: var(--shadow);
}
.member .name { font-weight: 700; font-family: "Inria Serif", Georgia, serif;
  color: var(--blue-deep); font-size: 1.02rem; }
.member .role { color: var(--accent); font-weight: 600; font-size: .9rem; }
.member .meta { color: var(--muted); font-size: .85rem; margin-top: 2px; }
.member .meta a { font-size: .85rem; }
.member .email { font-size: .85rem; word-break: break-word; }

/* Alumni */
.alumni-grid {
  display: grid; gap: 22px 18px;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
}
.alum { text-align: center; font-size: .86rem; }
.alum .photo {
  width: 110px; height: 115px; margin: 0 auto 8px; border-radius: 8px;
  object-fit: cover; background: var(--bg-soft); box-shadow: var(--shadow);
}
.alum .name { font-weight: 700; font-family: "Inria Serif", Georgia, serif;
  color: var(--blue-deep); font-size: .92rem; }
.alum .role { color: var(--muted); }
.alum .dates { color: var(--muted); font-size: .8rem; }
.alum .after { color: var(--ink); font-size: .8rem; margin-top: 3px; }
.join-card .photo { object-fit: contain; padding: 12px; }
.join-card .name { color: var(--accent); }

/* ---- News timeline ---- */
.news-month { margin-top: 30px; }
.news-month h3 {
  font-size: 1.15rem; color: var(--blue); margin: 0 0 10px;
}
.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li {
  position: relative; padding: 0 0 12px 22px; color: var(--ink);
}
.news-list li::before {
  content: ""; position: absolute; left: 2px; top: 10px;
  width: 8px; height: 8px; border-radius: 50%; background: var(--blue);
}
.news-photos {
  display: grid; gap: 10px; margin: 10px 0 4px;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}
.news-photos img { border-radius: 8px; box-shadow: var(--shadow); }

/* ---- Publications ---- */
.pub-links-top { margin: 6px 0 24px; display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 8px 16px; border-radius: 8px;
  background: var(--blue); color: #fff; font-weight: 600; font-size: .92rem;
}
.btn:hover { background: var(--blue-dark); text-decoration: none; }
.btn.ghost { background: #fff; color: var(--blue); border: 1px solid var(--blue); }
.pub-year { margin: 30px 0 4px; font-size: 1.25rem; color: var(--blue-deep);
  font-family: "Inria Serif", Georgia, serif; }
.pub {
  padding: 14px 0; border-bottom: 1px solid var(--line);
}
.pub .pub-title { font-weight: 700; color: var(--ink); }
.pub .pub-num { color: var(--muted); font-weight: 700; margin-right: 4px; }
.pub .pub-authors { font-size: .92rem; color: var(--muted); margin: 3px 0; }
.pub .pub-authors b { color: var(--ink); }
.pub .pub-venue { font-size: .92rem; font-style: italic; color: var(--ink); }
.pub .pub-links { margin-top: 5px; display: flex; gap: 8px; flex-wrap: wrap; }
.pub .pub-links a {
  font-size: .82rem; padding: 2px 9px; border: 1px solid var(--line);
  border-radius: 6px; background: var(--bg-soft); color: var(--blue);
}
.pub .pub-links a:hover { background: #eaf1f8; text-decoration: none; }

/* ---- Simple link lists (tools, teaching) ---- */
.link-list { list-style: none; padding: 0; margin: 0; }
.link-list li {
  padding: 14px 18px; border: 1px solid var(--line); border-radius: var(--radius);
  margin-bottom: 12px; background: #fff; box-shadow: var(--shadow);
}
.link-list li b { color: var(--blue-deep); }

/* ---- Join ---- */
.join-block { margin-top: 26px; }
.join-block h3 { color: var(--blue); font-size: 1.2rem; margin: 0 0 6px; }

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--line); background: var(--bg-soft);
  font-size: .88rem; color: var(--muted);
}
.site-footer .wrap { padding: 26px 24px; display: flex; gap: 14px;
  flex-wrap: wrap; align-items: center; justify-content: center; }
.site-footer a { color: var(--muted); }
.site-footer .sep { opacity: .5; }
.equity-note {
  background: #eaf1f8; border-radius: var(--radius); padding: 16px 20px;
  margin-top: 30px; font-size: .95rem;
}

.loading { color: var(--muted); padding: 20px 0; }

/* Accessibility */
a:focus-visible, button:focus-visible {
  outline: 3px solid #9cc3e6; outline-offset: 2px; border-radius: 4px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* ---- Contact map ---- */
.contact-map { margin-top: 28px; max-width: 720px; }
.contact-map iframe {
  width: 100%; height: 360px; display: block;
  border: 1px solid var(--line); border-radius: var(--radius);
}