:root {
  --bg-900: #020617;
  --bg-800: #111827;
  --panel: #071026;
  --border: #1f2937;
  --muted: #9ca3af;
  --fg: #f9fafb;
  --accent: #1d4ed8;
  --card-shadow: 0 14px 30px rgba(15, 23, 42, 0.75);
  --radius: 0.75rem;
  --gap: 1rem;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  background-color: var(--bg-800)  !important;
  color: var(--fg);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.4;
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* Top bar */
.top-bar {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(90deg, rgba(2,6,23,1) 0%, rgba(3,7,32,1) 100%);
  position: sticky;
  top: 0;
  z-index: 1;
}
.top-bar h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.top-bar i { font-size: 1.25rem; }
.subtitle { font-size: 0.9rem; color: var(--muted); margin-top: 0.15rem; }

/* Main layout */
.main-layout {
  padding: 1.25rem;
}

.main-layout .row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap);
}

/* Info cards */
.card.card-info {
  background: radial-gradient(circle at top left, var(--accent), var(--bg-900));
  color: var(--fg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 1rem;
  flex: 1 1 200px;
  min-width: 180px;
  max-width: 320px;
  transition: transform 180ms ease;
  cursor: default;
}
.card.card-info:hover {
  transform: translateY(-3px);
}
.card.card-info:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(29,78,216,0.12), var(--card-shadow);
  transform: translateY(-4px);
}
.card-body h6 { 
  font-size: 0.85rem; 
  color: var(--muted); 
  margin-bottom: 0.25rem; 
}
.card-body h4 { 
  font-size: 1.4rem; 
  font-weight: 700; 
  color: var(--fg); 
  margin: 0; 
}

/* Graph card */
.card-graph {
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.6);
  padding: 0.75rem;
  width: 100%;
}
.card-graph .card-header { margin-bottom: 0.5rem; color: var(--fg);}
.card-graph canvas { width: 100% !important; height: 220px !important; display: block; }

/* Table card */
.card .card-header{
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.5rem;
}
.card.card-table {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 0.5rem;
  border: 2px solid var(--border);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.6);
}

/* Table layout */
.table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  min-width: 560px;
  color: var(--fg);
}
th, td {
  padding: 0.8rem 0.6rem;
  text-align: left;
}
th {
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}
.donation-table-body { background-color: var(--fg);   }

/* Row striping and hover */
tbody tr:nth-child(even) { background: rgba(255,255,255,0.02); }
tbody tr:nth-child(odd)  { background: rgba(255,255,255,0.01); }
tbody tr:hover { background: var(--bg-800); cursor: pointer; }
tbody tr:focus { outline: none; box-shadow: 0 0 0 3px rgba(29,78,216,0.06); }

/* Footer */
.footer {
  text-align: center;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: #6b7280;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(2,6,23,0.06));
}

/* Utilities */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Responsive small screens */
@media (max-width: 768px) {
  .card.card-info { flex: 1 1 calc(50% - var(--gap)); max-width: none; }
}
@media (max-width: 480px) {
  .card.card-info { flex: 1 1 100%; }
  .card-graph canvas { height: 160px !important; }
}