:root {
  --bg: #f6f7f9; --card: #ffffff; --fg: #1a1d23; --muted: #626b78; --line: #e3e6eb;
  --accent: #2456d6; --accent-fg: #fff; --danger: #c0352b; --ok: #1f7a4a; --warn: #9a6400;
  --secret-bg: #fff8e6; --secret-line: #f0d48a; --code-bg: #f0f2f5;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418; --card: #1a1e24; --fg: #e6e8eb; --muted: #97a0ac; --line: #2c323a;
    --accent: #6d95ff; --accent-fg: #0d1117; --danger: #ff7b72; --ok: #56d364; --warn: #e3b341;
    --secret-bg: #2a2413; --secret-line: #6b5518; --code-bg: #242a31;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.bar { display: flex; justify-content: space-between; align-items: center;
  padding: 12px 20px; border-bottom: 1px solid var(--line); background: var(--card); }
.brand { font-weight: 650; letter-spacing: .01em; display: flex; align-items: center; gap: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.who { display: flex; gap: 12px; align-items: center; color: var(--muted); }
main { max-width: 1100px; margin: 24px auto; padding: 0 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 20px; margin-bottom: 20px; }
.narrow { max-width: 440px; margin: 60px auto; }
h1 { font-size: 17px; margin: 0 0 14px; }
.head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.muted { color: var(--muted); }
label { display: block; font-weight: 550; margin-bottom: 4px; }
.toggle { font-weight: 400; color: var(--muted); display: flex; gap: 6px; align-items: center; }
input, select { width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 7px;
  background: var(--bg); color: var(--fg); font: inherit; }
input[type=checkbox] { width: auto; }
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.grid { display: grid; grid-template-columns: 2fr 1.3fr 1fr auto; gap: 14px; align-items: start; }
.field.actions { align-self: end; padding-bottom: 22px; }
.hint { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }
button { font: inherit; padding: 8px 14px; border-radius: 7px; border: 1px solid var(--line);
  background: var(--card); color: var(--fg); cursor: pointer; }
button.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 600; }
button.ghost { background: transparent; }
button.danger { color: var(--danger); border-color: transparent; background: transparent; padding: 4px 8px; }
button.danger:hover { border-color: var(--danger); }
button:disabled { opacity: .5; cursor: default; }
#loginForm button { margin-top: 14px; width: 100%; }
.err { color: var(--danger); margin: 10px 0 0; }
.secret { margin-top: 18px; padding: 14px; border: 1px solid var(--secret-line); background: var(--secret-bg); border-radius: 8px; }
.secret p { margin: 0 0 10px; }
.copyrow { display: flex; gap: 8px; margin-bottom: 10px; }
.copyrow code { flex: 1; padding: 8px 10px; background: var(--code-bg); border-radius: 6px; overflow-x: auto; white-space: nowrap; }
code { font: 12.5px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
td.name { white-space: normal; max-width: 260px; overflow-wrap: anywhere; }
.pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; border: 1px solid currentColor; }
.s-active { color: var(--ok); } .s-expired { color: var(--warn); } .s-revoked { color: var(--muted); }
.r-admin { color: var(--danger); } .r-operator { color: var(--accent); } .r-readonly { color: var(--muted); }
tr.revoked td { color: var(--muted); }
.foot { font-size: 12.5px; }
a { color: var(--accent); }
@media (max-width: 760px) {
  .grid { grid-template-columns: 1fr; }
  .field.actions { padding-bottom: 0; }
  .field.actions button { width: 100%; }
}

/* ---------- data viz tokens (validated: dataviz palette, both modes) ---------- */
:root {
  --series-1: #2a78d6; --series-2: #eb6834; --series-muted: #898781;
  --status-good: #0ca30c; --status-warning: #fab219; --status-serious: #ec835a; --status-critical: #d03b3b;
  --grid: #e8eaee; --axis: #c3c8d0; --ink-muted: #6b7280;
}
@media (prefers-color-scheme: dark) {
  :root { --series-1: #3987e5; --series-2: #d95926; --grid: #262c33; --axis: #3a414a; --ink-muted: #8b95a1; }
}

/* ---------- layout: tabs, filters, tiles ---------- */
main { max-width: 1280px; }
.bar { gap: 16px; flex-wrap: wrap; }
.tabs { display: flex; gap: 4px; flex: 1; }
.tabs a { padding: 6px 12px; border-radius: 7px; color: var(--muted); text-decoration: none; font-weight: 550; }
.tabs a:hover { background: var(--bg); color: var(--fg); }
.tabs a[aria-current="page"] { background: var(--bg); color: var(--fg); box-shadow: inset 0 -2px 0 var(--accent); }
.filters { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.filters input[type=search] { width: 280px; max-width: 100%; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--card); }
.seg button { border: 0; border-radius: 0; background: transparent; padding: 6px 12px; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-pressed="true"] { background: var(--accent); color: var(--accent-fg); font-weight: 600; }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.tile-label { color: var(--muted); font-size: 12.5px; }
.tile-value { font-size: 26px; font-weight: 650; margin-top: 2px; letter-spacing: -.01em; }
.tile-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.tile.warn .tile-value { color: var(--warn); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid2 > .card { margin-bottom: 16px; min-width: 0; }
.dash.loading, .workers.loading { opacity: .55; transition: opacity .2s; }
.sub-card { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); }
@media (max-width: 900px) { .grid2 { grid-template-columns: 1fr; } }

/* ---------- charts ---------- */
.viz-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 8px; }
.viz-title { font-size: 15px; margin: 0; }
.viz-sub { margin: 2px 0 0; color: var(--muted); font-size: 12.5px; }
.viz-toggle { font-size: 12px; padding: 3px 10px; }
.viz-svg { display: block; overflow: visible; }
.viz-axis text { fill: var(--ink-muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.viz-grid { stroke: var(--grid); stroke-width: 1; shape-rendering: crispEdges; }
.viz-base { stroke: var(--axis); stroke-width: 1; shape-rendering: crispEdges; }
.viz-line { fill: none; stroke: var(--c); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.viz-line.thin { stroke-width: 1.5; }
.viz-area { fill: var(--c); fill-opacity: .1; stroke: none; }
.viz-dot { fill: var(--c); stroke: var(--card); stroke-width: 2; }
.viz-cross { stroke: var(--axis); stroke-width: 1; pointer-events: none; }
.viz-hit { fill: transparent; cursor: crosshair; outline: none; }
.viz-bar { fill: var(--c); }
.viz-col:hover .viz-bar, .viz-col:focus .viz-bar { filter: brightness(1.12); }
.viz-col { outline: none; }
.viz-col:focus-visible .viz-hit { stroke: var(--accent); stroke-width: 1; }
.viz-legend { display: flex; flex-wrap: wrap; gap: 14px; margin: 2px 0 8px; font-size: 12.5px; color: var(--muted); }
.viz-legend-item { display: inline-flex; align-items: center; gap: 6px; }
.viz-key { display: inline-block; flex: none; background: var(--c); }
.viz-key.line { width: 14px; height: 2px; border-radius: 1px; }
.viz-key.rect { width: 10px; height: 10px; border-radius: 2px; }
.viz-icon { font-size: 11px; color: var(--fg); }
.viz-tip { position: absolute; z-index: 50; pointer-events: none; background: var(--card); border: 1px solid var(--line);
  border-radius: 8px; padding: 8px 10px; box-shadow: 0 6px 20px rgba(0,0,0,.15); font-size: 12.5px; min-width: 140px; }
.viz-tip-title { color: var(--muted); margin-bottom: 4px; }
.viz-tip-row { display: flex; align-items: center; gap: 8px; }
.viz-tip-row strong { font-variant-numeric: tabular-nums; }
.viz-tip-label { color: var(--muted); }
.viz-hbars { display: grid; gap: 8px; }
.viz-hbar { display: grid; grid-template-columns: minmax(90px, 30%) 1fr; gap: 10px; align-items: center; outline: none; border-radius: 6px; }
.viz-hbar:focus-visible { box-shadow: 0 0 0 2px var(--accent); }
.viz-hbar-label { display: flex; gap: 6px; align-items: center; overflow-wrap: anywhere; font-size: 13px; }
.viz-hbar-track { display: flex; align-items: center; gap: 8px; min-width: 0; }
.viz-hbar-fill { height: 14px; background: var(--c); border-radius: 0 4px 4px 0; flex: none; max-width: 70%; }
.viz-hbar-val { font-size: 12.5px; color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; }
.viz-table table { font-size: 12.5px; }
.viz-table td, .viz-table th { padding: 5px 8px; }
.viz-tablewrap { max-height: 320px; overflow: auto; }
.viz-spark { display: block; }

/* ---------- workers ---------- */
.workers { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 14px; }
.worker { margin: 0; display: grid; gap: 10px; }
.worker.offline { opacity: .7; }
.wk-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.wk-name { font-weight: 650; font-size: 15px; }
.wk-badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge { font-size: 11.5px; padding: 1px 8px; border-radius: 999px; background: var(--bg); border: 1px solid var(--line); color: var(--muted); }
.badge.wl-monitoring { border-color: var(--series-1); color: var(--fg); box-shadow: inset 3px 0 0 var(--series-1); }
.badge.wl-scraping { border-color: var(--series-2); color: var(--fg); box-shadow: inset 3px 0 0 var(--series-2); }
.wk-meter { display: grid; grid-template-columns: auto 1fr auto; gap: 8px; align-items: center; }
.meter { height: 8px; border-radius: 4px; background: color-mix(in srgb, var(--series-1) 18%, var(--card)); overflow: hidden; }
.meter-fill { height: 100%; background: var(--series-1); border-radius: 4px; }
.meter-fill.warn { background: var(--status-warning); }
.meter-fill.crit { background: var(--status-critical); }
.wk-stats { display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; margin: 0; font-size: 12.5px; }
.wk-stats dt { color: var(--muted); }
.wk-stats dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- access log ---------- */
table.log td { padding: 6px 8px; vertical-align: top; }
table.log td.path { white-space: normal; overflow-wrap: anywhere; max-width: 420px; }
table.log td.ua { white-space: normal; max-width: 220px; overflow-wrap: anywhere; color: var(--muted); }
table.log td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.log tr.fresh { animation: fresh 1.6s ease-out; }
@keyframes fresh { from { background: color-mix(in srgb, var(--accent) 16%, transparent); } to { background: transparent; } }
@media (prefers-reduced-motion: reduce) { table.log tr.fresh { animation: none; } }
.code { font: 600 12px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; padding: 1px 6px; border-radius: 5px; }
.code.s-ok { color: var(--ok); }
.code.s-warn { color: var(--warn); background: color-mix(in srgb, var(--status-warning) 14%, transparent); }
.code.s-critical { color: var(--danger); background: color-mix(in srgb, var(--status-critical) 14%, transparent); }
#accMore { margin-top: 10px; }