:root {
  --bg: #f4f5f7; --card: #fff; --text: #1d2330; --muted: #6b7385; --line: #e2e5ea;
  --accent: #1b6fd8; --ok: #18864b; --warn: #b26b00; --bad: #c62828; --code: #0f1420; --code-text: #d7dce5;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11151c; --card: #1a1f29; --text: #e3e7ee; --muted: #8b93a5; --line: #2a3140; --accent: #5aa2ff; --code: #0b0e14; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
[hidden] { display: none !important; }
a { color: var(--accent); }
button { font: inherit; padding: 6px 12px; border-radius: 6px; border: 1px solid var(--line); background: var(--card); color: var(--text); cursor: pointer; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--bad); }
button.link { border: 0; background: none; color: var(--muted); }
button:disabled { opacity: .5; cursor: default; }
input, select { font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--text); }

header { display: flex; gap: 20px; align-items: center; padding: 10px 20px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 2; flex-wrap: wrap; }
header nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
header nav a { padding: 6px 10px; border-radius: 6px; text-decoration: none; color: var(--muted); }
header nav a.active { background: var(--bg); color: var(--text); font-weight: 600; }
main { padding: 20px; max-width: 1300px; margin: 0 auto; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.card h2 { margin: 0 0 12px; font-size: 15px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 16px; }
.grid .card { margin: 0; }
.stat { font-size: 26px; font-weight: 600; }
.sub { color: var(--muted); font-size: 12px; }
.bar { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; margin: 6px 0; }
.bar > div { height: 100%; background: var(--accent); }
.bar > div.warn { background: var(--warn); }
.bar > div.bad { background: var(--bad); }
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar .spacer { flex: 1; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
td.actions { white-space: nowrap; text-align: right; }
td.actions button { padding: 3px 8px; font-size: 12px; }

.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; font-weight: 600; background: var(--line); }
.badge.ok { background: color-mix(in srgb, var(--ok) 18%, transparent); color: var(--ok); }
.badge.warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.badge.bad { background: color-mix(in srgb, var(--bad) 18%, transparent); color: var(--bad); }

pre { margin: 0; padding: 12px; background: var(--code); color: var(--code-text); border-radius: 8px; overflow: auto; font: 12px/1.5 ui-monospace, Consolas, monospace; white-space: pre-wrap; word-break: break-all; }
pre.log { height: calc(100vh - 230px); min-height: 300px; }
.error { color: var(--bad); }

#toast { position: fixed; right: 20px; bottom: 20px; max-width: 520px; z-index: 5; }
#toast pre { max-height: 300px; }
#toast .card { box-shadow: 0 6px 24px rgba(0,0,0,.2); }

.login-card { max-width: 340px; margin: 12vh auto; display: flex; flex-direction: column; gap: 12px; }
.login-card h1 { margin: 0 0 4px; font-size: 20px; }
.login-card label { display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 12px; }
.toolbar h2 { margin: 0; }

/* ---- Charts and new pages ------------------------------------------------------- */
/* Fixed categorical slots (validated light and dark, scripts/validate_palette.js); chart chrome */
:root { --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a; --series-4: #eda100; --series-5: #e87ba4; --grid: #e1e0d9; }
@media (prefers-color-scheme: dark) {
  :root { --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500; --series-5: #d55181; --grid: #2c2c2a; }
}

.filters { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.filters .hint { margin-left: auto; }
.presets { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.presets button { border: 0; border-radius: 0; border-right: 1px solid var(--line); padding: 6px 12px; }
.presets button:last-child { border-right: 0; }
.presets button.selected { background: var(--accent); color: #fff; font-weight: 600; }

.chart-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(480px, 1fr)); gap: 16px; }
.chart-grid .card { margin: 0; }
.chart-card { min-width: 0; }
.chart-head { display: flex; align-items: baseline; gap: 10px; }
.chart-head h2 { margin: 0; }
.readout { display: flex; flex-wrap: wrap; gap: 4px 16px; align-items: baseline; min-height: 22px; margin: 6px 0 4px; font-variant-numeric: tabular-nums; }
.readout-time { color: var(--muted); font-size: 12px; }
.readout-item { display: inline-flex; gap: 6px; align-items: baseline; }
.readout-item .key { display: inline-block; width: 14px; border-top: 2px solid; transform: translateY(-3px); }
.plot { width: 100%; }
.chart-table summary { cursor: pointer; color: var(--muted); font-size: 12px; margin-top: 6px; }
.chart-table .table-wrap { max-height: 320px; overflow: auto; margin-top: 8px; }
.loading { opacity: .5; transition: opacity .2s; }
.u-select { background: color-mix(in srgb, var(--accent) 18%, transparent); }

.table-wrap { overflow-x: auto; }
th.num, td.num { text-align: right; font-variant-numeric: tabular-nums; }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 12px; }
.clip { max-width: 420px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); }
a.link-card { color: inherit; text-decoration: none; display: block; }
a.link-card:hover { border-color: var(--accent); }
.inline { display: inline-flex; gap: 4px; }
.inline select { padding: 2px 4px; font-size: 12px; }
h2.spaced { margin-top: 20px; }
textarea { width: 100%; font: 12px/1.5 ui-monospace, Consolas, monospace; padding: 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--text); }
.form-row { margin: 8px 0; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.form-row input[type=number] { width: 90px; }
.feed { display: flex; flex-direction: column; gap: 10px; max-height: 70vh; overflow: auto; }
.feed-item pre { max-height: 160px; margin-top: 4px; }
details.card > summary { cursor: pointer; font-weight: 600; }