:root {
  --bg: #f5f7f8;
  --panel: #ffffff;
  --text: #333;
  --muted: #828b95;
  --accent: #2fc6f6;
  --unread: #9dcf00;
  --warn: #fff3cd;
  --border: #e6e9eb;
}
* { box-sizing: border-box; }
body { margin: 0; font: 13px/1.4 "Open Sans", "Helvetica Neue", Arial, sans-serif; color: var(--text); background: var(--bg); }
.panel { background: var(--panel); border-bottom: 1px solid var(--border); padding: 8px 12px; display: flex; flex-direction: column; gap: 6px; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.sep { flex: 1; }
label { color: var(--muted); display: inline-flex; align-items: center; gap: 4px; }
label.chk { color: var(--text); }
select, input, button { font: inherit; padding: 4px 8px; border: 1px solid var(--border); border-radius: 4px; background: #fff; color: var(--text); }
button { cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
#search { min-width: 240px; }
.badge { color: var(--muted); padding: 2px 8px; border-radius: 10px; }
.badge.warn { background: var(--warn); color: #8a6d3b; }
main { padding: 8px 12px; }
#message { background: #fff; border: 1px solid var(--border); padding: 24px; text-align: center; font-size: 15px; }
.unread { display: inline-block; min-width: 18px; height: 18px; padding: 0 5px; margin-left: 6px; border-radius: 9px;
  background: var(--unread); color: #fff; font-size: 11px; font-weight: 600; line-height: 18px; text-align: center; vertical-align: middle; }
.group-count { color: var(--muted); font-weight: normal; margin-left: 4px; }
.tabulator .tabulator-row { cursor: pointer; }
.tabulator .tabulator-group { background: #eef2f4; }
dialog { border: 1px solid var(--border); border-radius: 6px; width: min(640px, 92vw); max-height: 80vh; }
#columns-list { max-height: 55vh; overflow: auto; margin: 8px 0; }
#columns-list h4 { margin: 10px 0 4px; color: var(--muted); }
#columns-list label { display: flex; color: var(--text); padding: 2px 0; }
menu { display: flex; justify-content: flex-end; gap: 8px; padding: 0; margin: 0; }