:root {
  --bg: #0f172a;
  --bg-panel: #f8fafc;
  --card-bg: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-2: #059669;
  --border: #e2e8f0;
  --danger: #dc2626;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg-panel);
  color: var(--text);
  min-height: 100vh;
}

header.topbar {
  background: var(--bg);
  color: #fff;
  padding: 16px 24px 0 24px;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  max-width: 1200px;
  margin: 0 auto;
}

.topbar-inner h1 {
  font-size: 1.25rem;
  margin: 0;
  font-weight: 600;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.last-updated {
  font-size: 0.8rem;
  color: #cbd5e1;
}

.btn-refresh {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 0.85rem;
  cursor: pointer;
}

.btn-refresh:hover { background: #1d4ed8; }

nav.tabs {
  max-width: 1200px;
  margin: 16px auto 0 auto;
  display: flex;
  gap: 4px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: #cbd5e1;
  padding: 10px 18px;
  font-size: 0.95rem;
  cursor: pointer;
  border-radius: 8px 8px 0 0;
}

.tab-btn.active {
  background: var(--bg-panel);
  color: var(--text);
  font-weight: 600;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.tab-intro {
  color: var(--text-muted);
  margin: 0 0 18px 0;
}

.grid {
  display: grid;
  gap: 20px;
}

.grid.two-col {
  grid-template-columns: repeat(2, 1fr);
}

.grid.multi-col {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

@media (max-width: 800px) {
  .grid.two-col { grid-template-columns: 1fr; }
  .topbar-inner h1 { font-size: 1.05rem; }
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.card.full-width {
  margin-top: 20px;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.card-head h2 {
  font-size: 1.05rem;
  margin: 0;
}

.badge {
  font-size: 0.75rem;
  background: #eef2ff;
  color: var(--accent);
  padding: 3px 10px;
  border-radius: 999px;
}

.country-select {
  padding: 5px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 0.85rem;
}

.chart-wrap {
  position: relative;
  height: 260px;
}

.status-line {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  min-height: 1em;
}

.status-line.error { color: var(--danger); }

.source-note {
  margin: 10px 0 0 0;
  font-size: 0.72rem;
  color: #94a3b8;
}


footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.78rem;
  padding: 24px;
}