/* ─── Typography ─────────────────────────────────────────────────────────── */
body {
  font-family: "Source Serif Pro", Georgia, serif;
  font-size: 1.05rem;
  line-height: 1.75;
  color: #2c3e50;
}

code, pre {
  font-family: "Source Code Pro", "Fira Code", monospace;
}

/* ─── Hero / landing banner ─────────────────────────────────────────────── */
.hero-banner {
  background: linear-gradient(135deg, #1a3a4f 0%, #2e7d9f 60%, #4db6ac 100%);
  color: white;
  padding: 4rem 2rem 3rem 2rem;
  border-radius: 0 0 8px 8px;
  margin-bottom: 2.5rem;
}

.hero-banner h1 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.75rem;
  color: white;
}

.hero-banner .subtitle {
  font-size: 1.15rem;
  opacity: 0.88;
  margin-bottom: 1.5rem;
}

.hero-banner .meta {
  font-size: 0.9rem;
  opacity: 0.7;
}

/* ─── Stat cards ─────────────────────────────────────────────────────────── */
.stat-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  transition: box-shadow 0.2s;
}

.stat-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.stat-card strong {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  color: #1a3a4f;
  line-height: 1.1;
  margin-bottom: 0.3rem;
}

.stat-card .stat-value {
  font-size: 2.2rem;
  font-weight: 700;
  color: #1a3a4f;
  line-height: 1.1;
  margin-bottom: 0.3rem;
}

.stat-card .stat-label {
  font-size: 0.85rem;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-card .stat-ci {
  font-size: 0.78rem;
  color: #94a3b8;
  margin-top: 0.2rem;
}

/* ─── Finding cards ─────────────────────────────────────────────────────── */
.finding-card {
  border-left: 4px solid #2e7d9f;
  background: #f0f7ff;
  padding: 1rem 1.25rem;
  border-radius: 0 6px 6px 0;
  margin-bottom: 1rem;
}

.finding-card.warning {
  border-left-color: #e67e22;
  background: #fff8f0;
}

.finding-card.success {
  border-left-color: #27ae60;
  background: #f0fff5;
}

.finding-card strong {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 1rem;
}

/* ─── Section headers ────────────────────────────────────────────────────── */
h2 {
  color: #1a3a4f;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 0.4rem;
  margin-top: 2.5rem;
}

h3 {
  color: #2e5070;
}

/* ─── Tables ─────────────────────────────────────────────────────────────── */
.table thead {
  background-color: #1a3a4f;
  color: white;
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(46, 125, 159, 0.05);
}

/* ─── Code blocks ────────────────────────────────────────────────────────── */
pre.sourceCode {
  background: #1e2a35;
  border-radius: 6px;
  padding: 1rem;
}

/* ─── Callout overrides ──────────────────────────────────────────────────── */
.callout-note {
  border-left-color: #2e7d9f;
}

.callout-important {
  border-left-color: #e74c3c;
}

/* ─── Figure captions ────────────────────────────────────────────────────── */
figcaption {
  font-size: 0.85rem;
  color: #64748b;
  margin-top: 0.4rem;
  font-style: italic;
}

/* ─── Nav bar ────────────────────────────────────────────────────────────── */
.navbar {
  background-color: #1a3a4f !important;
}

.navbar-brand, .navbar .nav-link {
  color: rgba(255,255,255,0.9) !important;
}

.navbar .nav-link:hover {
  color: #4db6ac !important;
}

/* ─── Footer ─────────────────────────────────────────────────────────────── */
.page-footer {
  background: #f1f5f9;
  border-top: 1px solid #e2e8f0;
  font-size: 0.85rem;
  color: #64748b;
}

/* ─── Grid helpers ────────────────────────────────────────────────────────── */
.grid-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .grid-2 { grid-template-columns: 1fr; }
  .hero-banner h1 { font-size: 1.5rem; }
}