/* ============================================================
   Sauve Applied QuantGen Lab — styles.css
   Palette: deep slate · forest green · steel blue · sand · amber
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,600;0,700;1,400&family=IBM+Plex+Sans:wght@300;400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --slate:         #1E2D3D;
  --slate-mid:     #2C3E50;
  --slate-light:   #3D5166;
  --forest:        #2D6A4F;
  --forest-light:  #3B8A65;
  --forest-pale:   #E8F4EE;
  --steel:         #4A7FA5;
  --steel-light:   #6A9FBF;
  --steel-pale:    #EAF2F8;
  --sand:          #E8DCC8;
  --sand-dark:     #C9B99A;
  --sand-deeper:   #A89070;
  --amber:         #C4862B;
  --amber-light:   #D9A04A;
  --off-white:     #F5F2ED;
  --body-text:     #2A3340;
  --muted:         #6B7A8D;
  --rule:          #D5CCB8;

  --body-font:     'IBM Plex Sans', sans-serif;
  --serif-font:    'Lora', Georgia, serif;
  --mono-font:     'IBM Plex Mono', monospace;

  --radius:        3px;
  --radius-lg:     6px;
  --shadow-sm:     0 1px 4px rgba(30,45,61,0.10);
  --shadow-md:     0 4px 18px rgba(30,45,61,0.14);
  --transition:    0.2s ease;
}

/* ── Base ──────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  font-family: var(--body-font);
  color: var(--body-text);
  background: #fff;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--serif-font);
  color: var(--slate);
  line-height: 1.25;
  margin-top: 0;
}

h1 { font-size: 2.1rem; font-weight: 700; margin-bottom: 0.6rem; }
h2 { font-size: 1.55rem; font-weight: 600; margin-top: 2.5rem; margin-bottom: 0.9rem; border-bottom: 1px solid var(--rule); padding-bottom: 0.35rem; }
h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.4rem; }
h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.3rem; }

p { margin-bottom: 1.1rem; }

a {
  color: var(--steel);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--amber); text-decoration: underline; }

code, kbd {
  font-family: var(--mono-font);
  font-size: 0.88em;
  background: var(--off-white);
  padding: 0.1em 0.35em;
  border-radius: 2px;
  border: 1px solid var(--rule);
}

/* ── Navbar ────────────────────────────────────────────────── */
.navbar {
  background-color: var(--slate) !important;
  border-bottom: 3px solid var(--amber);
  padding: 0.55rem 1.5rem;
}

.navbar-brand,
.navbar .nav-link {
  color: var(--sand) !important;
  font-family: var(--body-font);
  font-weight: 500;
  font-size: 0.88rem;
  letter-spacing: 0.025em;
  transition: color var(--transition);
}

.navbar-brand {
  font-family: var(--serif-font);
  font-size: 1rem;
  font-weight: 700;
  color: #fff !important;
}

.navbar .nav-link:hover { color: var(--amber-light) !important; }
.navbar .nav-link.active {
  color: var(--amber-light) !important;
  border-bottom: 2px solid var(--amber);
}

/* ── Page wrapper ──────────────────────────────────────────── */
#quarto-content {
  max-width: 880px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

/* ── Hero ──────────────────────────────────────────────────── */
.lab-hero {
  background: var(--slate);
  color: #fff;
  padding: 3.5rem 2.75rem;
  margin: -2.5rem -1.5rem 2.75rem;
  position: relative;
  overflow: hidden;
  border-bottom: 4px solid var(--amber);
}

.lab-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 80% at 90% 50%, rgba(74,127,165,0.30) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(45,106,79,0.20) 0%, transparent 60%);
  pointer-events: none;
}

.lab-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.lab-hero > * { position: relative; z-index: 1; }

.lab-hero h1 {
  color: #fff;
  font-size: 2.5rem;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.lab-hero .subtitle {
  color: rgba(255,255,255,0.80);
  font-size: 1rem;
  max-width: 560px;
  line-height: 1.7;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.hero-tag {
  display: inline-block;
  font-family: var(--mono-font);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.22rem 0.65rem;
  border-radius: 2px;
  font-weight: 500;
}

.hero-tag.ecology   { background: rgba(45,106,79,0.55);   color: #a8dfc2; border: 1px solid rgba(45,106,79,0.7); }
.hero-tag.inference { background: rgba(74,127,165,0.45);  color: #c5dfee; border: 1px solid rgba(74,127,165,0.6); }
.hero-tag.forensics { background: rgba(196,134,43,0.40);  color: #ecd49a; border: 1px solid rgba(196,134,43,0.6); }

/* ── Inline image ──────────────────────────────────────────── */
.centered-image {
  float: right;
  width: 275px;
  margin: 0.25rem 0 1rem 1.75rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--rule);
}

.bottom-logo {
  display: block;
  margin: 4rem auto 2rem auto; /* auto on left/right centers it horizontally */
  
  /* Your original aesthetics */
  width: 275px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--rule);
}

/* ── Dividers & labels ─────────────────────────────────────── */
.section-rule {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 2.5rem 0;
}

.section-label {
  font-family: var(--mono-font);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.5rem;
}

/* ── Research theme cards ──────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.1rem;
  margin: 1.25rem 0;
}

.lab-card {
  background: var(--off-white);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.2rem;
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}

.lab-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}

.lab-card.ecology::before   { background: var(--forest); }
.lab-card.inference::before { background: var(--steel); }
.lab-card.forensics::before { background: var(--amber); }
.lab-card.methods::before   { background: var(--slate-light); }

.lab-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.lab-card .card-icon { font-size: 1.5rem; margin-bottom: 0.6rem; display: block; }
.lab-card h3 { font-size: 1rem; margin-bottom: 0.35rem; color: var(--slate); }
.lab-card p  { font-size: 0.88rem; color: var(--muted); margin: 0; line-height: 1.55; }

/* ── Team cards ────────────────────────────────────────────── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 1.4rem;
  margin: 1.25rem 0;
}

.team-card {
  text-align: center;
  padding: 1.5rem 1rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--rule);
  background: var(--off-white);
  transition: box-shadow var(--transition);
}

.team-card:hover { box-shadow: var(--shadow-md); }

.team-card img {
  width: 96px; height: 96px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--sand-dark);
  margin: 0 auto 0.85rem;
  display: block;
}

.member-name  { font-family: var(--serif-font); font-weight: 700; color: var(--slate); font-size: 0.98rem; margin-bottom: 0.2rem; display: block; }
.member-role  { font-size: 0.8rem; color: var(--muted); font-style: italic; display: block; margin-bottom: 0.6rem; }
.member-links a { font-family: var(--mono-font); font-size: 0.75rem; color: var(--steel); margin: 0 0.2rem; }

/* ── Partners (logo grid) ──────────────────────────────────── */
.partner-category-label {
  display: block;
  font-family: var(--mono-font);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-light);
  margin: 1.75rem 0 0.4rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px dashed var(--rule);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1.5rem 1.75rem;
  align-items: center;
  margin: 0.75rem 0 1.5rem;
}

.partner-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  text-decoration: none !important;
  padding: 0.75rem 0.5rem;
  border-radius: var(--radius);
  transition: transform var(--transition), background var(--transition);
}

.partner-item img {
  max-width: 100%;
  max-height: 60px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.6);
  transition: filter var(--transition);
}

.partner-item:hover {
  transform: translateY(-2px);
  background: var(--off-white);
}

.partner-item:hover img {
  filter: grayscale(0%) opacity(1);
}

.partner-name {
  font-family: var(--mono-font);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--muted);
  margin-top: 0.65rem;
  line-height: 1.35;
}

.partner-item:hover .partner-name { color: var(--slate); }

/* ── Publication list ──────────────────────────────────────── */
.pub-list { list-style: none; padding: 0; margin: 0; }

.pub-list li {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.93rem;
  line-height: 1.65;
}

.pub-list li:last-child { border-bottom: none; }

.pub-year {
  display: inline-block;
  background: var(--slate);
  color: var(--sand);
  font-family: var(--mono-font);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
  margin-right: 0.5rem;
  vertical-align: middle;
  letter-spacing: 0.04em;
}

.pub-title   { font-weight: 500; color: var(--body-text); }
.pub-authors { color: var(--muted); font-size: 0.86rem; display: block; margin-top: 0.2rem; }
.pub-journal { font-style: italic; color: var(--forest); }
.pub-doi a   { font-family: var(--mono-font); font-size: 0.8rem; color: var(--steel); }

/* Publication number — small tangerine counter */
.pub-num {
  display: inline-block;
  font-family: var(--mono-font);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--amber);
  min-width: 2.2em;
  margin-right: 0.35rem;
  vertical-align: baseline;
}

/* Mentee highlight — surname with tangerine asterisk */
.mentee {
  font-weight: 600;
  color: var(--slate);
}
.mentee::after {
  content: '*';
  color: var(--amber);
  font-weight: 700;
  margin-left: 1px;
}
.mentee-legend {
  color: var(--amber);
  font-weight: 700;
  font-size: 1.05em;
}

/* ── News feed ─────────────────────────────────────────────── */
.news-list { list-style: none; padding: 0; margin: 0; }

.news-item {
  display: flex;
  gap: 1.25rem;
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--rule);
  align-items: flex-start;
}

.news-item:last-child { border-bottom: none; }

.news-date {
  min-width: 64px;
  text-align: center;
  background: var(--slate);
  color: var(--sand);
  border-radius: var(--radius);
  padding: 0.4rem 0.5rem;
  font-family: var(--mono-font);
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1.4;
  flex-shrink: 0;
}

.news-date .day { font-size: 1.35rem; font-weight: 600; display: block; color: var(--amber-light); line-height: 1.1; }

.news-body h4 { font-size: 0.98rem; margin: 0 0 0.3rem; color: var(--slate); }
.news-body p  { font-size: 0.88rem; color: var(--muted); margin: 0; line-height: 1.6; }

/* ── Join callout ──────────────────────────────────────────── */
.join-callout {
  background: var(--slate);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 2.25rem;
  margin: 2rem 0;
  border-left: 4px solid var(--amber);
  position: relative;
  overflow: hidden;
}

.join-callout::after {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; width: 35%;
  background: radial-gradient(ellipse at right center, rgba(74,127,165,0.25), transparent 70%);
  pointer-events: none;
}

.join-callout h3 { color: var(--amber-light); margin-bottom: 0.6rem; }
.join-callout p  { color: rgba(255,255,255,0.82); margin-bottom: 0.8rem; font-size: 0.95rem; }

.btn-amber {
  display: inline-block;
  background: var(--amber);
  color: #fff !important;
  font-family: var(--body-font);
  font-weight: 600;
  font-size: 0.86rem;
  letter-spacing: 0.03em;
  padding: 0.55rem 1.3rem;
  border-radius: 2rem;
  text-decoration: none !important;
  transition: background var(--transition), transform var(--transition);
}

.btn-amber:hover { background: var(--amber-light); transform: translateY(-1px); }

/* ── Stat strip ────────────────────────────────────────────── */
.stat-strip {
  display: flex;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 1.5rem 0;
}

.stat-item {
  flex: 1;
  padding: 1.1rem 1rem;
  text-align: center;
  border-right: 1px solid var(--rule);
  background: var(--off-white);
}

.stat-item:last-child { border-right: none; }

.stat-num {
  font-family: var(--serif-font);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--slate);
  display: block;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-family: var(--mono-font);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── Footer ────────────────────────────────────────────────── */
#quarto-footer {
  border-top: 3px solid var(--slate);
  background: var(--off-white);
  font-size: 0.8rem;
  color: var(--muted);
  padding: 1rem 1.5rem;
  font-family: var(--mono-font);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 640px) {
  .lab-hero { padding: 2rem 1.25rem; }
  .lab-hero h1 { font-size: 1.85rem; }
  .card-grid, .team-grid { grid-template-columns: 1fr 1fr; }
  .centered-image { float: none; width: 100%; margin: 0 0 1.25rem; }
  .news-item { flex-direction: column; gap: 0.5rem; }
  .stat-strip { flex-wrap: wrap; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--rule); }
  .stat-item:last-child { border-bottom: none; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 400px) {
  .card-grid, .team-grid { grid-template-columns: 1fr; }
}