:root {
  --bg: #f7f7f8;
  --surface: #ffffff;
  --border: #e2e2e6;
  --text: #1b1c1f;
  --text-muted: #6b6f76;
  --accent: #2454ff;
  --success: #1f8a4c;
  --danger: #c0392b;
  --warn: #b8860b;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16171a;
    --surface: #1e1f23;
    --border: #303236;
    --text: #eceef1;
    --text-muted: #9a9ea6;
    --accent: #6d8dff;
    --success: #45c179;
    --danger: #e5695a;
    --warn: #e0b23e;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 24px 32px 0;
}

h1 {
  margin: 0 0 4px;
  font-size: 22px;
}

.subtitle {
  margin: 0 0 16px;
  color: var(--text-muted);
  font-size: 14px;
}

nav {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 14px;
  padding: 10px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

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

main {
  padding: 20px 32px 40px;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

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

input[type="search"] {
  flex: 1;
  max-width: 420px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
}

.count {
  color: var(--text-muted);
  font-size: 13px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

th,
td {
  text-align: left;
  padding: 10px 12px;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 260px;
}

th {
  color: var(--text-muted);
  font-weight: 600;
  background: color-mix(in srgb, var(--surface) 92%, var(--text));
}

tbody tr {
  cursor: pointer;
}

tbody tr:hover {
  background: color-mix(in srgb, var(--surface) 95%, var(--accent));
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
}

.badge.success {
  color: var(--success);
  background: color-mix(in srgb, var(--success) 15%, transparent);
}

.badge.duplicate {
  color: var(--warn);
  background: color-mix(in srgb, var(--warn) 15%, transparent);
}

.badge.fail {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 15%, transparent);
}

.empty {
  color: var(--text-muted);
  font-size: 14px;
  padding: 24px 0;
  text-align: center;
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px;
  overflow-y: auto;
}

/* .overlay's own `display: flex` otherwise beats the UA's [hidden] rule,
   since author styles always win over UA styles regardless of specificity -
   this made the overlay visible on load, darkening the whole page. */
.overlay[hidden] {
  display: none;
}

.detail-panel {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 900px;
  width: 100%;
  padding: 24px;
}

.close-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
}

.detail-panel dl {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 6px 12px;
  font-size: 13px;
  margin: 0 0 16px;
}

.detail-panel dt {
  color: var(--text-muted);
}

.detail-panel dd {
  margin: 0;
  word-break: break-word;
}

.detail-panel pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  font-size: 12px;
  max-height: 320px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.pdf-link {
  display: inline-block;
  margin-top: 8px;
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
}

.pdf-link:hover {
  text-decoration: underline;
}

.section-label {
  font-size: 13px;
  color: var(--text-muted);
  margin: 16px 0 6px;
}

.draft-builder {
  margin-top: 24px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.draft-builder h3 {
  font-size: 14px;
  margin: 0 0 10px;
}

#pdf-text-pre {
  user-select: text;
  cursor: text;
}

.tag-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.selection-preview {
  font-size: 12px;
  color: var(--text-muted);
  font-family: monospace;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tag-toolbar select,
.tag-toolbar input[type="text"] {
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
}

button {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
}

button:hover:not(:disabled) {
  border-color: var(--accent);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.fields-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
  table-layout: fixed;
}

.fields-table th,
.fields-table td {
  font-size: 12px;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  white-space: normal;
  overflow-wrap: break-word;
}

.mono {
  font-family: monospace;
}

.regex-input {
  width: 100%;
  box-sizing: border-box;
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  font-size: 12px;
}

.posting-mode {
  display: flex;
  gap: 20px;
  font-size: 13px;
  margin-bottom: 10px;
}

.posting-mode label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.split-row {
  display: flex;
  gap: 8px;
  margin-bottom: 6px;
}

.split-label-input {
  flex: 1;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
}

#splits-area {
  margin-bottom: 12px;
}

textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  resize: vertical;
}

.save-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}

.save-btn {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  font-weight: 600;
}

#save-draft-status {
  font-size: 12px;
  color: var(--text-muted);
}