:root {
  --bg: #f5f6f8; --surface: #fff; --surface-2: #f0f2f5; --border: #dfe3e8;
  --text: #1c2430; --muted: #667085; --primary: #2563eb; --primary-ink: #fff;
  --danger: #d92d20; --ok: #12843a; --warn: #b54708;
  --radius: 10px; --shadow: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1419; --surface: #171d25; --surface-2: #1e2630; --border: #2b3441;
    --text: #e6e9ee; --muted: #8b95a5; --primary: #4c8dff; --primary-ink: #0b1220;
    --danger: #ff6b5e; --ok: #3ccf6e; --warn: #f5a24b; --shadow: none;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.45; }
h1 { font-size: 22px; margin: 0; } h2 { font-size: 17px; margin: 0 0 12px; }
a { color: var(--primary); }
.hidden { display: none !important; }

/* shell */
.shell { display: grid; grid-template-columns: 230px 1fr; min-height: 100vh; }
.sidebar { background: var(--surface); border-right: 1px solid var(--border); padding: 18px 12px; display: flex; flex-direction: column; gap: 4px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; padding: 4px 10px 18px; }
.brand img { width: 28px; height: 28px; }
.nav a { display: block; padding: 9px 12px; border-radius: 8px; color: var(--text); text-decoration: none; }
.nav a:hover { background: var(--surface-2); }
.nav a.active { background: var(--primary); color: var(--primary-ink); }
.main { display: flex; flex-direction: column; min-width: 0; }
.topbar { display: flex; justify-content: flex-end; align-items: center; gap: 14px; padding: 12px 24px; border-bottom: 1px solid var(--border); background: var(--surface); }
.topbar .who { display: flex; align-items: center; gap: 8px; color: var(--text); text-decoration: none; padding: 4px 10px 4px 5px; border-radius: 99px; }
.topbar .who:hover, .topbar .who.active { background: var(--surface-2); }
.avatar { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--primary); color: var(--primary-ink); font-size: 13px; font-weight: 700; }
.content { padding: 24px; width: 100%; }
.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; gap: 12px; }

/* components */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat .num { font-size: 28px; font-weight: 700; }
.stat .lbl { color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 28px 12px; }
.btn { font: inherit; cursor: pointer; border: 1px solid var(--border); background: var(--surface); color: var(--text); padding: 8px 14px; border-radius: 8px; }
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.sm { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.badge { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; background: var(--surface-2); }
.badge.admin { color: var(--primary); } .badge.ok { color: var(--ok); } .badge.off { color: var(--warn); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
tr:last-child td { border-bottom: 0; }
td.actions { text-align: right; white-space: nowrap; display: flex; gap: 6px; justify-content: flex-end; }
.table-wrap { overflow-x: auto; padding: 0; }

/* forms */
label { display: block; font-weight: 600; font-size: 13px; margin-bottom: 14px; }
label.check { display: flex; gap: 8px; align-items: center; font-weight: 500; }
input, select { width: 100%; font: inherit; margin-top: 5px; padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); }
input[type=checkbox] { width: auto; margin: 0; }
input:focus, select:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
.hint { color: var(--muted); font-weight: 400; }
.form-error { color: var(--danger); min-height: 20px; margin: 0 0 8px; font-size: 14px; }
.row-end { display: flex; justify-content: flex-end; gap: 8px; margin-top: 6px; }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login .card { width: 100%; max-width: 380px; padding: 28px; }
.login .brand { justify-content: center; padding-bottom: 20px; font-size: 20px; }

/* dialog + toasts */
dialog { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text); padding: 22px; width: min(440px, 92vw); box-shadow: 0 20px 50px rgba(0,0,0,.3); }
dialog::backdrop { background: rgba(10,14,20,.5); }
#toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 10; }
.toast { background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px; box-shadow: 0 6px 20px rgba(0,0,0,.25); }
.toast.error { background: var(--danger); color: #fff; }

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; align-items: center; border-right: 0; border-bottom: 1px solid var(--border); padding: 10px; }
  .brand { padding: 4px 10px; } .nav { display: flex; gap: 4px; }
  .content { padding: 16px; }
}

/* monitoring */
.badge.bad { color: var(--danger); background: color-mix(in srgb, var(--danger) 14%, transparent); }
.badge.ok { background: color-mix(in srgb, var(--ok) 14%, transparent); }
.badge.off { background: color-mix(in srgb, var(--warn) 14%, transparent); }
.stat.alert .num { color: var(--danger); }
.ok-text { color: var(--ok); }
.wrap { overflow-wrap: anywhere; max-width: 360px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.muted { color: var(--muted); }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.info-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.kv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; }
.kv .lbl { color: var(--muted); font-size: 13px; margin-bottom: 2px; }
.chart svg { width: 100%; height: auto; display: block; }
.chart .axis { stroke: var(--border); stroke-width: 1; }
.chart .line { stroke: var(--primary); stroke-width: 2; stroke-linejoin: round; }
.chart .fail { fill: var(--danger); }
.chart-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; margin-top: 6px; }
.login-actions { display: flex; gap: 10px; align-items: center; }
.login-actions .btn.primary { flex: 1; height: 34px; }
td.actions { display: table-cell; }
td.actions > * { margin-left: 6px; }
h2 { margin-top: 20px; }
.card h2, dialog h2 { margin-top: 0; }

/* selects: custom arrow with proper inset (file-based, so CSP img-src 'self' is enough) */
select {
  appearance: none; -webkit-appearance: none;
  padding-right: 34px;
  background-image: url(/static/chevron.svg);
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px 8px;
  cursor: pointer;
}
select:disabled { opacity: .6; cursor: not-allowed; }

.hostlist { max-height: 180px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; margin: -4px 0 14px; display: flex; flex-direction: column; gap: 6px; }
.hostlist .check { margin: 0; }

.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; align-items: center; }
.filters .inline { width: auto; min-width: 200px; margin: 0; }

/* language menu */
.menu-wrap { position: relative; }
.icon-btn { display: inline-grid; place-items: center; width: 34px; height: 34px; padding: 0; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--muted); cursor: pointer; }
.icon-btn:hover, .icon-btn[aria-expanded="true"] { background: var(--surface-2); color: var(--text); }
.menu { position: absolute; right: 0; top: calc(100% + 6px); min-width: 160px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 8px 24px rgba(0,0,0,.18); padding: 4px; z-index: 20; }
.menu-item { display: flex; justify-content: space-between; align-items: center; gap: 12px; width: 100%; font: inherit; text-align: left; background: none; border: 0; color: var(--text); padding: 8px 10px; border-radius: 6px; cursor: pointer; }
.menu-item:hover { background: var(--surface-2); }
.menu-item.current { color: var(--primary); font-weight: 600; }

/* groups & tags */
.chips { display: inline-flex; flex-wrap: wrap; gap: 4px; }
.chip { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 12px; background: var(--surface-2); color: var(--muted); }
.sub { font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin: 4px 0 6px; }

/* api tokens */
.copy-row { display: flex; gap: 8px; align-items: center; }
.copy-row input { margin: 0; }
pre.code { background: var(--surface-2); border-radius: 8px; padding: 10px 12px; overflow-x: auto; font-size: 12px; margin: 6px 0; white-space: pre-wrap; word-break: break-all; }
dialog { max-width: 92vw; }

/* uptime */
.pct { font-weight: 600; font-variant-numeric: tabular-nums; }
.pct.ok { color: var(--ok); } .pct.warn { color: var(--warn); } .pct.bad { color: var(--danger); } .pct.none { color: var(--muted); }
.pct.big { font-size: 22px; }
.stat .num.pct { font-size: 28px; }
.small { font-size: 12px; }
.uptime-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; }
.uptime-card .lbl { color: var(--muted); font-size: 13px; }
.daybar { display: flex; gap: 2px; height: 30px; margin-top: 6px; }
.daybar .day { flex: 1; border-radius: 3px; background: var(--border); }
.daybar .day.ok { background: var(--ok); } .daybar .day.warn { background: var(--warn); } .daybar .day.bad { background: var(--danger); }

textarea { width: 100%; font: inherit; margin-top: 5px; padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
dialog { max-height: 92vh; overflow-y: auto; }

/* json rule editor */
.rules { display: flex; flex-direction: column; gap: 6px; margin-bottom: 6px; }
.rule-row { display: grid; grid-template-columns: 1.4fr 1fr 1fr auto; gap: 6px; align-items: center; }
.rule-row input, .rule-row select { margin: 0; padding: 6px 8px; font-size: 13px; }
.rule-row input:disabled { opacity: .45; }
.field { margin-bottom: 14px; }

/* agent metrics */
tr.clickable { cursor: pointer; }
tr.clickable:hover { background: var(--surface-2); }
tr.selected { background: color-mix(in srgb, var(--primary) 10%, transparent); }
td.stale { color: var(--danger); }
.chart .line.faint { stroke: var(--muted); opacity: .45; stroke-width: 1; }

/* recurring windows */
.weekdays { display: flex; gap: 6px; flex-wrap: wrap; }
.daybox { display: inline-flex; margin: 0; }
.daybox input { position: absolute; opacity: 0; width: 0; height: 0; }
.daybox span { display: inline-block; min-width: 40px; text-align: center; padding: 6px 8px; border: 1px solid var(--border); border-radius: 8px; cursor: pointer; font-weight: 500; user-select: none; }
.daybox input:checked + span { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.daybox input:focus-visible + span { outline: 2px solid var(--primary); outline-offset: 2px; }

/* history */
.hist-stats { display: flex; gap: 32px; flex-wrap: wrap; margin-bottom: 8px; }
.hist-stats .lbl { color: var(--muted); font-size: 13px; }
.big-num { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }
.chart .failbar { fill: var(--danger); opacity: .85; }

/* percentile lines and legends */
.chart .line.p95 { stroke: var(--warn); stroke-width: 1.5; stroke-dasharray: 5 3; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 6px; color: var(--muted); font-size: 12px; }
.legend .key { display: inline-flex; align-items: center; gap: 6px; }
.swatch { display: inline-block; width: 14px; height: 3px; border-radius: 2px; background: var(--primary); }
.swatch.p95 { background: repeating-linear-gradient(90deg, var(--warn) 0 5px, transparent 5px 8px); }
.swatch.max { background: var(--muted); opacity: .5; }
.swatch.fail { height: 10px; width: 10px; background: var(--danger); }

/* reserve space so the chart slot does not jump between refreshes */
.chart-slot { min-height: 250px; }

/* metric types: timeline for bool series, multi-line comparison for percent series */
.chart .tl-ok { fill: var(--ok); } .chart .tl-bad { fill: var(--danger); } .chart .tl-mid { fill: var(--warn); }
.chart .line.c0 { stroke: var(--primary); } .swatch.c0 { background: var(--primary); }
.chart .line.c1 { stroke: var(--warn); } .swatch.c1 { background: var(--warn); }
.chart .line.c2 { stroke: var(--ok); } .swatch.c2 { background: var(--ok); }
.chart .line.c3 { stroke: var(--danger); } .swatch.c3 { background: var(--danger); }
.chart .line.c4 { stroke: #a855f7; } .swatch.c4 { background: #a855f7; }
.chart .line.c5 { stroke: #06b6d4; } .swatch.c5 { background: #06b6d4; }
.chart .line.c6 { stroke: #ec4899; } .swatch.c6 { background: #ec4899; }
.chart .line.c7 { stroke: #84cc16; } .swatch.c7 { background: #84cc16; }
td.pick { width: 28px; }

/* freshness indicator in the metrics table */
td.fresh { width: 28px; text-align: center; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--muted); }
.dot.ok { background: var(--ok); } .dot.bad { background: var(--danger); }
.big-text { font-size: 22px; font-weight: 600; padding: 6px 0 14px; overflow-wrap: anywhere; }

/* fleet dashboard tiles */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; margin-bottom: 18px; }
.tile { display: block; background: var(--card); border: 1px solid var(--border); border-left: 4px solid var(--muted); border-radius: 10px; padding: 12px 14px; color: inherit; text-decoration: none; }
.tile:hover { border-color: var(--primary); }
.tile.st-up { border-left-color: var(--ok); } .tile.st-down { border-left-color: var(--danger); }
.tile.st-partial { border-left-color: var(--warn); } .tile.st-off { opacity: .7; }
.tile-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 4px; }
.tile-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; font-size: 12px; margin-bottom: 8px; min-height: 18px; }
.tile-row { display: grid; grid-template-columns: 40px 44px 1fr; align-items: center; gap: 8px; font-size: 13px; padding: 2px 0; }
.tile-row .lbl { color: var(--muted); } .tile-row .val { font-weight: 600; font-variant-numeric: tabular-nums; }
.val.ok { color: var(--ok); } .val.warn { color: var(--warn); } .val.bad { color: var(--danger); }
.spark { width: 100%; height: 28px; } .spark .line { stroke: var(--primary); stroke-width: 1.5; stroke-linejoin: round; } .spark .dotp { fill: var(--primary); }
.bar { display: block; height: 8px; border-radius: 4px; background: color-mix(in srgb, var(--muted) 25%, transparent); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--ok); } .bar i.warn { background: var(--warn); } .bar i.bad { background: var(--danger); }

/* host dashboard widgets */
.widgets { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; align-items: start; }
.widget.wide { grid-column: 1 / -1; }
.widgets > .empty { grid-column: 1 / -1; }
.whead { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 8px; }
.wtools { display: inline-flex; gap: 4px; }
.widgets.editing .widget { outline: 1px dashed var(--border); }
.vlist { display: flex; flex-direction: column; gap: 8px; }
.vrow { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) 90px; gap: 10px; align-items: center; font-size: 14px; }
.vrow .lbl { color: var(--muted); overflow-wrap: anywhere; } .vrow .val { font-weight: 600; overflow-wrap: anywhere; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-size: 13px; border: 1px solid var(--border); }
.pill.bad { border-color: var(--danger); color: var(--danger); } .pill.ok { border-color: color-mix(in srgb, var(--ok) 50%, var(--border)); }
@media (max-width: 800px) { .widgets { grid-template-columns: minmax(0, 1fr); } .vrow { grid-template-columns: 1fr; } }
.bad-text { color: var(--danger); }

/* chart hover: crosshair, point markers, tooltip */
.chart.hoverable { position: relative; }
.chart.hoverable svg { touch-action: pan-y; cursor: crosshair; }
.chart .cursor { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 3; pointer-events: none; }
.chart .dots { pointer-events: none; }
.chart .pt { fill: var(--primary); stroke: var(--card); stroke-width: 1.5; }
.chart .pt.p95 { fill: var(--warn); } .chart .pt.fail { fill: var(--danger); }
.chart .pt.c0 { fill: var(--primary); } .chart .pt.c1 { fill: var(--warn); } .chart .pt.c2 { fill: var(--ok); } .chart .pt.c3 { fill: var(--danger); }
.chart .pt.c4 { fill: #a855f7; } .chart .pt.c5 { fill: #06b6d4; } .chart .pt.c6 { fill: #ec4899; } .chart .pt.c7 { fill: #84cc16; }
.tip { position: absolute; z-index: 5; transform: translateX(12px); min-width: 150px; max-width: 280px; pointer-events: none;
  background: var(--card); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .18); font-size: 12px; }
.tip.flip { transform: translateX(calc(-100% - 12px)); }
.tip-title { color: var(--muted); margin-bottom: 4px; white-space: nowrap; }
.tip-row { display: flex; align-items: center; gap: 6px; padding: 1px 0; }
.tip-row .tip-label { flex: 1; overflow-wrap: anywhere; } .tip-row b { font-variant-numeric: tabular-nums; white-space: nowrap; }
.tip .swatch { flex: none; height: 8px; width: 8px; border-radius: 50%; }
.tip .swatch.ok { background: var(--ok); } .tip .swatch.fail { background: var(--danger); } .tip .swatch.warn { background: var(--warn); }