:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #dfe3e8;
  --text: #1f2933;
  --muted: #64748b;
  --accent: #2563eb;
  --danger: #dc2626;
  --warn: #b45309;
  --warn-bg: #fef3c7;
  --ok: #15803d;
  --ok-bg: #dcfce7;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }

header.topbar {
  display: flex; align-items: center; gap: 24px;
  background: #111827; color: #fff; padding: 12px 24px;
}
header.topbar a { color: #cbd5e1; text-decoration: none; font-size: 14px; }
header.topbar a.active { color: #fff; font-weight: 600; }
header.topbar .title { font-weight: 700; margin-right: auto; }
header.topbar button { margin-left: auto; background: none; border: 1px solid #4b5563; color: #cbd5e1; padding: 6px 12px; border-radius: 6px; cursor: pointer; }

main { max-width: 1000px; margin: 0 auto; padding: 24px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 24px; }
.stat-tile { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.stat-tile .n { font-size: 28px; font-weight: 700; }
.stat-tile .l { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.search-bar { display: flex; gap: 8px; margin-bottom: 20px; }
.search-bar input { flex: 1; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; }
.search-bar button, .btn { padding: 10px 16px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); cursor: pointer; font-size: 14px; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.danger { background: #fff; color: var(--danger); border-color: var(--danger); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px; margin-bottom: 16px; }
.card.dupe { border-color: var(--warn); }
.card h3 { margin: 0 0 4px; }
.badge { display: inline-block; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; padding: 3px 8px; border-radius: 999px; }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.muted { background: #e5e7eb; color: var(--muted); }

.field-row { font-size: 14px; margin: 2px 0; color: var(--text); }
.field-row .k { color: var(--muted); }

.conflict-box { border: 1px solid var(--warn); background: var(--warn-bg); border-radius: 8px; padding: 12px; margin: 10px 0; }
.conflict-box .options { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.conflict-box label { display: flex; align-items: center; gap: 6px; background: #fff; border: 1px solid var(--border); border-radius: 6px; padding: 6px 10px; font-size: 13px; cursor: pointer; }

.plan-preview { background: #f8fafc; border: 1px dashed var(--border); border-radius: 8px; padding: 10px 12px; font-family: ui-monospace, Menlo, monospace; font-size: 12px; margin-top: 10px; white-space: pre-wrap; }

.actions { display: flex; gap: 8px; margin-top: 12px; }

table.lookup-table { width: 100%; border-collapse: collapse; font-size: 14px; }
table.lookup-table th, table.lookup-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
table.lookup-table input[type=text] { padding: 4px 6px; border: 1px solid var(--border); border-radius: 4px; width: 160px; }

.login-box { max-width: 340px; margin: 80px auto; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 28px; }
.login-box input { width: 100%; padding: 10px; margin: 6px 0 14px; border: 1px solid var(--border); border-radius: 8px; }
.error-msg { color: var(--danger); font-size: 13px; margin-top: 8px; }
.empty-state { color: var(--muted); text-align: center; padding: 40px; }

.modal-overlay { position: fixed; inset: 0; background: rgba(15,23,42,.5); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 24px; }
.modal-box { background: var(--card); border-radius: 12px; max-width: 900px; width: 100%; max-height: 90vh; overflow-y: auto; padding: 24px; }
.modal-box h3 { margin-top: 0; }
.resolver-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 16px 0; }
.resolver-cols .col { border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.resolver-cols .col h4 { margin: 0 0 8px; }
.field-diff-table { width: 100%; border-collapse: collapse; font-size: 13px; margin: 12px 0; }
.field-diff-table th, .field-diff-table td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.field-diff-table label { display: block; cursor: pointer; padding: 2px 0; }
.resolver-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.resolver-actions .btn { flex: 1 1 auto; }