:root { --pad: 14px; }

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #fafafa;
  color: #111;
}

header, footer {
  padding: 18px 20px;
  background: #fff;
  border-bottom: 1px solid #eee;
}

footer {
  border-top: 1px solid #eee;
  border-bottom: none;
}

h1 { margin: 0 0 6px 0; font-size: 22px; }
.sub { margin: 0; color: #555; }

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  align-items: center;
  padding: 12px 20px;
}

.controls label {
  display: flex;
  gap: 8px;
  align-items: center;
  background: #fff;
  padding: 10px 12px;
  border: 1px solid #eee;
  border-radius: 10px;
}

.layout {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 14px;
  padding: 14px 20px 24px;
}

.card {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 14px;
  padding: var(--pad);
}

.details h2 { margin-top: 0; }

.tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(20, 20, 20, 0.95);
  color: #fff;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  max-width: 260px;
  line-height: 1.25;
}

svg text { font-size: 12px; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
}