* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  margin: 0;
  padding: 24px;
  background: #0f1419;
  color: #e7ecf3;
  line-height: 1.5;
}

a {
  color: #6eb5ff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  margin-bottom: 24px;
}

h1 {
  margin: 0 0 8px;
  font-size: 1.5rem;
}

.subtitle {
  color: #9aa8b8;
  margin: 0;
}

nav {
  display: flex;
  gap: 16px;
  margin-top: 12px;
  flex-wrap: wrap;
}

nav a.active {
  font-weight: 600;
  color: #fff;
}

.toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}

button {
  background: #2563eb;
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.95rem;
}

button:hover {
  background: #1d4ed8;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  font-size: 0.9rem;
  color: #9aa8b8;
}

.status.error {
  color: #f87171;
}

.status.ok {
  color: #4ade80;
}

#output table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  background: #1a2332;
  border-radius: 8px;
  overflow: hidden;
}

#output th,
#output td {
  border: 1px solid #2d3a4d;
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  word-break: break-word;
}

#output th {
  background: #243044;
  position: sticky;
  top: 0;
}

#output tr:nth-child(even) td {
  background: #151d28;
}

.card {
  background: #1a2332;
  border: 1px solid #2d3a4d;
  border-radius: 8px;
  padding: 16px;
  max-width: 480px;
}

.card dt {
  color: #9aa8b8;
  font-size: 0.85rem;
}

.card dd {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.card dd:last-child {
  margin-bottom: 0;
}