:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --border: #d9dee3;
  --text: #1f2328;
  --muted: #6b7280;
  --accent: #0969da;
  --error-bg: #fff0f0;
  --error-text: #b42318;
  --ok: #1a7f37;
  --null: #c0c4c9;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

header h1 { font-size: 18px; margin: 0; }

nav { display: flex; gap: 16px; }
nav a { color: var(--accent); text-decoration: none; }
nav a:hover { text-decoration: underline; }

.badge {
  margin-left: auto;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}
.badge.test { background: #fff3cd; color: #7a4f01; }

main { padding: 24px; max-width: 1100px; margin: 0 auto; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 20px;
}

.card h2 { margin-top: 0; font-size: 16px; }

p.error {
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid var(--error-text);
  border-radius: 6px;
  padding: 10px 12px;
  white-space: pre-wrap;
  word-break: break-word;
}

p.ok { color: var(--ok); font-weight: 600; }

table { border-collapse: collapse; width: 100%; font-size: 13px; }

th, td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
  max-width: 320px;
  overflow-wrap: anywhere;
}

th { background: #f6f8fa; font-weight: 600; }

.table-wrap { overflow-x: auto; }

.null { color: var(--null); font-style: italic; }

.kv { width: auto; min-width: 340px; }
.kv th { text-align: right; width: 120px; background: transparent; }
.kv td { border: none; }

textarea {
  width: 100%;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

button {
  margin-top: 10px;
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}
button:hover { opacity: 0.9; }

.hint { color: var(--muted); font-size: 12px; }

.pager { display: flex; gap: 16px; margin-top: 14px; }
.pager a { color: var(--accent); text-decoration: none; }