:root {
  color-scheme: light dark;
  --border: #d0d7de;
  --accent: #0969da;
}

* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  line-height: 1.4;
}

header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

h1 {
  margin: 0;
  font-size: 1.25rem;
}

.sub {
  margin: 0.25rem 0 0;
  opacity: 0.7;
  font-size: 0.9rem;
}

main {
  padding: 1.5rem;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.field {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.field > span {
  opacity: 0.7;
}

select {
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: Canvas;
  color: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

button {
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-size: 0.9rem;
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

.status {
  opacity: 0.7;
  font-size: 0.9rem;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.85rem;
}

th,
td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  position: sticky;
  top: 0;
  background: Canvas;
  font-weight: 600;
}

.error {
  padding: 1rem;
  color: #b00020;
}

.empty {
  padding: 1rem;
  opacity: 0.7;
}