/* ============================================================
   GRAPHS — Timeline Graphs (SVG chart cards)
   WhoDASH / Belmont Labs — BL-002
   ============================================================
   Sources consolidated from sections_graphs.js:
     ~55–160   Inline <style> injected by renderGraphsLayout()
               into #tab-graphs via innerHTML.
   ⚠️  PENDING ACTION: Remove the <style> block injected by
       renderGraphsLayout() in sections_graphs.js (lines ~54–
       160) once this file is linked — the innerHTML template
       string should only contain the HTML, not the <style>.
   NOTE: .loading-spinner, .error-msg, .no-data-msg are local
   to the graphs context (colours differ from mortality's
   version). .whodat-tip is the SVG graph tooltip overlay.
   ============================================================ */

/* ============================================================
   CONTAINER & HEADER
   ============================================================ */

.graphs-container {
  padding: 20px;
}

.graphs-header {
  text-align: center;
  margin-bottom: 40px;
}

.graphs-header h1 {
  font-size: 2.5rem;
  color: #2456a5;
  margin-bottom: 8px;
}

.graphs-header p {
  color: #64748b;
  font-size: 1.1rem;
}

/* ============================================================
   GRAPH GRID & CARDS
   ============================================================ */

.graphs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 30px;
}

.graph-card {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 16px rgba(49, 130, 206, 0.08);
  border: 1px solid rgba(49, 130, 206, 0.1);
  transition: transform 0.2s, box-shadow 0.2s;
}

.graph-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(49, 130, 206, 0.16);
}

.graph-card h3 {
  color: #2456a5;
  font-size: 1.25rem;
  margin: 0 0 20px 0;
  font-weight: 600;
  text-align: center;
}

.graph-wrapper {
  position: relative;
  height: 200px;
  margin-top: 12px;
}

.graph-svg {
  width: 100%;
  height: 100%;
}

/* ============================================================
   STATE MESSAGES
   ============================================================ */

.graphs-container .loading-spinner {
  text-align: center;
  padding: 40px;
  color: #3182ce;
}

.error-msg {
  text-align: center;
  padding: 40px;
  color: #ef4444;
  font-weight: 500;
}

.no-data-msg {
  text-align: center;
  padding: 60px 20px;
  color: #94a3b8;
  font-style: italic;
  font-size: 0.95rem;
}

/* ============================================================
   SVG TOOLTIP
   ============================================================ */

.whodat-tip {
  position: absolute;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.875rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  white-space: nowrap;
  z-index: 1000;
}

.whodat-tip.visible {
  opacity: 1;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .graphs-grid {
    grid-template-columns: 1fr;
  }
}