:root {
  --bg: #f6f7f9; --panel: #ffffff; --text: #1f2933; --muted: #5f6b7a; --line: #d9dee5;
  --accent: #1d5fbf; --accent-text: #ffffff; --bad: #b42318; --bad-bg: #fdecea; --good: #146c43; --good-bg: #e7f4ec;
  --warn: #8a5a00; --warn-bg: #fff4dc;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14181d; --panel: #1d232a; --text: #e6e9ed; --muted: #9aa5b1; --line: #333c46;
    --accent: #6ea8fe; --accent-text: #0b1520; --bad: #ff8a80; --bad-bg: #3a1f1f; --good: #7bd3a0; --good-bg: #183026;
    --warn: #f5c56b; --warn-bg: #352a12;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 20px;
  background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
header.top .brand { font-weight: 600; }
header.top nav { display: flex; gap: 16px; align-items: center; }
main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; }
main.narrow { max-width: 440px; padding-top: 8vh; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 20px; margin-bottom: 20px; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 0 0 12px; }
p.lead { color: var(--muted); margin: 0 0 20px; }
label { display: block; font-weight: 500; margin: 12px 0 4px; }
.hint { color: var(--muted); font-size: 13px; font-weight: 400; }
input, select { width: 100%; padding: 8px 10px; font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 6px; }
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button { font: inherit; cursor: pointer; border-radius: 6px; padding: 8px 14px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-text); }
button.plain { background: none; color: var(--accent); border-color: var(--line); padding: 4px 10px; font-size: 13px; }
button.link { background: none; border: 0; color: var(--accent); text-decoration: underline; padding: 0; }
button:disabled { opacity: .6; cursor: default; }
form .actions { margin-top: 18px; display: flex; gap: 10px; align-items: center; }
.msg { border-radius: 6px; padding: 10px 12px; margin: 12px 0; }
.msg.bad { background: var(--bad-bg); color: var(--bad); }
.msg.good { background: var(--good-bg); color: var(--good); }
.msg.warn { background: var(--warn-bg); color: var(--warn); }
[hidden] { display: none !important; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0 16px; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; white-space: nowrap; }
td .row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 10px; border: 1px solid var(--line); white-space: nowrap; }
.tag.active { background: var(--good-bg); color: var(--good); border-color: transparent; }
.tag.invited, .tag.locked { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.tag.disabled { background: var(--bad-bg); color: var(--bad); border-color: transparent; }
.linkbox { display: flex; gap: 8px; margin-top: 8px; }
.linkbox input { font-family: ui-monospace, monospace; font-size: 13px; }
.qr { text-align: center; margin: 12px 0; }
.qr img { background: #fff; padding: 6px; border-radius: 6px; }
code.secret { display: block; margin-top: 4px; font-family: ui-monospace, monospace; word-break: break-all; background: var(--bg); padding: 2px 6px; border-radius: 4px; }
ol.steps { padding-left: 20px; }
ol.steps li { margin-bottom: 8px; }
.muted { color: var(--muted); }
/* Reference data page */
.status-line { margin: 4px 0; }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; margin-bottom: 12px; }
.toolbar > div { min-width: 160px; }
.toolbar input, .toolbar select { width: auto; min-width: 160px; }
td.editable { cursor: pointer; }
td.editable:hover { outline: 1px dashed var(--accent); outline-offset: -3px; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
.changed-from { color: var(--muted); text-decoration: line-through; margin-right: 6px; }
.pager { display: flex; gap: 10px; align-items: center; margin-top: 10px; }
.editor { border: 1px solid var(--accent); border-radius: 8px; padding: 14px; margin: 12px 0; background: var(--bg); }
.danger { border-color: var(--bad); }
.danger h2 { color: var(--bad); }
button.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.conflict { border: 1px solid var(--line); border-radius: 6px; padding: 10px; margin: 8px 0; }
.conflict label { display: inline-flex; gap: 6px; align-items: center; margin: 4px 16px 0 0; font-weight: 400; }
.conflict input[type=radio] { width: auto; }
ul.plain { padding-left: 18px; margin: 6px 0; }
details summary { cursor: pointer; margin: 6px 0; }
.actions.spaced { margin-top: 12px; display: flex; gap: 10px; }
.setting { margin: 8px 0 12px; }
label.check { display: flex; gap: 8px; align-items: center; margin: 0; }
label.check input { width: auto; }