:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
}

* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #334155;
}
h1 {
  font-size: 1.15rem;
  margin: 0;
}
.actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
button {
  background: var(--accent);
  color: #04283a;
  border: 0;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
}
button:disabled {
  opacity: 0.5;
  cursor: default;
}
main {
  padding: 1.5rem;
  display: grid;
  gap: 1.5rem;
}
section {
  background: var(--panel);
  border: 1px solid #334155;
  border-radius: 10px;
  padding: 1rem 1.25rem;
}
h2 {
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
th,
td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid #334155;
}
th {
  color: var(--muted);
  font-weight: 600;
}
.muted {
  color: var(--muted);
}