:root {
  color-scheme: light dark;
  --bg: #f7f7f8;
  --surface: #ffffff;
  --text: #1a1a1e;
  --text-muted: #6b6b74;
  --border: #e2e2e6;
  --accent: #3358e0;
  --accent-text: #ffffff;
  --mono-bg: #f0f0f3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #181b21;
    --text: #eaeaef;
    --text-muted: #9a9aa5;
    --border: #2a2d35;
    --accent: #5b7cfa;
    --accent-text: #0f1115;
    --mono-bg: #101319;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 16px;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.site-header {
  max-width: 720px;
  margin: 0 auto;
  padding-block: 32px 8px;
}

.site-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

.site-header h1 .subtitle {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 8px;
}

.tagline {
  color: var(--text-muted);
  margin: 4px 0 0;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding-block: 16px 48px;
}

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  overflow-x: auto;
}

.tab {
  background: none;
  border: none;
  padding: 10px 16px;
  font-size: 0.95rem;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.lookup-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.lookup-form input,
.lookup-form select {
  flex: 1 1 200px;
  min-width: 0;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.95rem;
}

.lookup-form select {
  flex: 0 1 120px;
}

.lookup-form button {
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 0.95rem;
  cursor: pointer;
}

.lookup-form button:disabled {
  opacity: 0.6;
  cursor: default;
}

.result {
  margin-top: 20px;
}

.result:empty {
  display: none;
}

.result table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.result th,
.result td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  word-break: break-word;
}

.result h3 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.result .empty-note {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.result pre {
  background: var(--mono-bg);
  border-radius: 8px;
  padding: 12px;
  overflow-x: auto;
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.error-box {
  background: rgba(220, 60, 60, 0.1);
  border: 1px solid rgba(220, 60, 60, 0.4);
  color: #c93a3a;
  padding: 10px 14px;
  border-radius: 8px;
}

.loading {
  color: var(--text-muted);
}