:root {
  --bg: #ffffff;
  --fg: #1f2328;
  --muted: #57606a;
  --border: #d0d7de;
  --accent: #0969da;
  --accent-bg: #ddf4ff;
  --success: #1a7f37;
  --success-bg: #dafbe1;
  --info: #0969da;
  --info-bg: #ddf4ff;
  --warn: #9a6700;
  --warn-bg: #fff8c5;
  --error: #cf222e;
  --error-bg: #ffebe9;
}

* { box-sizing: border-box; }

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

.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #f6f8fa;
  border-right: 1px solid var(--border);
  padding: 24px 20px;
  font-size: 14px;
}

.sidebar h2 { margin-top: 0; }

.sidebar details {
  margin-bottom: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.sidebar summary {
  cursor: pointer;
  font-weight: 600;
  padding: 4px 0;
}

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

.faq-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.faq-table th, .faq-table td {
  text-align: left;
  padding: 4px 8px;
  border-bottom: 1px solid var(--border);
}

.main {
  padding: 32px 40px;
  max-width: 960px;
}

h1 { margin-top: 0; }

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin: 24px 0 16px;
  flex-wrap: wrap;
}

.tab {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 16px;
  cursor: pointer;
  font: inherit;
  color: var(--muted);
}

.tab.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

label { display: block; margin-bottom: 6px; font-weight: 500; }

input[type="text"], select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  margin-bottom: 12px;
}

button {
  font: inherit;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #f6f8fa;
  cursor: pointer;
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.status {
  margin: 12px 0;
  font-size: 14px;
  color: var(--muted);
  min-height: 20px;
}

.summary-box {
  padding: 12px 16px;
  border-radius: 6px;
  margin: 12px 0;
}
.summary-box.success { background: var(--success-bg); color: var(--success); }
.summary-box.info { background: var(--info-bg); color: var(--info); }
.summary-box.warn { background: var(--warn-bg); color: var(--warn); }
.summary-box.error { background: var(--error-bg); color: var(--error); }

.code-block {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: #f6f8fa;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  overflow-x: auto;
  font-size: 13px;
  word-break: break-all;
}

table.results {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}
table.results th, table.results td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
table.results th {
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.delegated {
  font-size: 12px;
  color: var(--muted);
  margin-left: 16px;
}

.row { display: flex; gap: 16px; align-items: center; margin: 12px 0; flex-wrap: wrap; }
.row label { display: inline-flex; align-items: center; gap: 6px; margin: 0; font-weight: normal; }

hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

.recent-list { display: flex; flex-direction: column; gap: 6px; margin: 12px 0; }
.recent-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}
.recent-item code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}

details.past-entry {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 8px;
}
details.past-entry summary {
  cursor: pointer;
  font-weight: 500;
}
details.past-entry .meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
  font-size: 14px;
}

@media (max-width: 760px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
  .main { padding: 20px; }
}