:root {
  color-scheme: light;
  --bg: #f4f4f2;
  --surface: #fcfcfb;
  --surface-2: #f0efec;
  --border: #e2e1dc;
  --text: #0b0b0b;
  --text-2: #52514e;
  --text-3: #7a7974;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --good: #0ca30c;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;
  --neutral: #a8a7a1;
  --good-ink: #006300;
  --critical-ink: #b02a2a;
  --grid: #ebeae6;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 1px 8px rgba(0,0,0,.04);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #121211;
    --surface: #1a1a19;
    --surface-2: #242422;
    --border: #2f2f2c;
    --text: #ffffff;
    --text-2: #c3c2b7;
    --text-3: #93928a;
    --accent: #3987e5;
    --neutral: #6c6b66;
    --good-ink: #5fd35f;
    --critical-ink: #ff8a8a;
    --grid: #2a2a28;
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #121211; --surface: #1a1a19; --surface-2: #242422; --border: #2f2f2c;
  --text: #ffffff; --text-2: #c3c2b7; --text-3: #93928a; --accent: #3987e5;
  --neutral: #6c6b66; --good-ink: #5fd35f; --critical-ink: #ff8a8a; --grid: #2a2a28; --shadow: none;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body { font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; font-variant-numeric: tabular-nums; }
.hidden { display: none !important; }
.muted { color: var(--text-2); }
.small { font-size: 12.5px; }
.error { color: var(--critical-ink); min-height: 1.2em; }
h1 { font-size: 22px; margin: 0; }
h2 { font-size: 15px; margin: 0; font-weight: 600; }
h3 { font-size: 13px; margin: 20px 0 8px; color: var(--text-2); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }

.btn { border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 8px; padding: 7px 12px; font: inherit; cursor: pointer; }
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.ghost { background: transparent; }
.btn.small { padding: 4px 9px; font-size: 12.5px; }
input, select { font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 6px 9px; min-width: 0; }
input:focus, select:focus, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 340px; display: grid; gap: 12px; padding: 28px; }
.login-card label { display: grid; gap: 4px; color: var(--text-2); font-size: 13px; }

.topbar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 16px; padding: 10px 20px; background: var(--surface); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.brand { font-weight: 700; }
#tabs { display: flex; gap: 2px; flex-wrap: wrap; }
#tabs button { border: 0; background: none; color: var(--text-2); font: inherit; padding: 6px 10px; border-radius: 7px; cursor: pointer; }
#tabs button.active { background: var(--surface-2); color: var(--text); font-weight: 600; }
.topright { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); border-radius: 999px; padding: 3px 10px; font-size: 12.5px; color: var(--text-2); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; flex: none; }

main { padding: 20px; max-width: 1400px; margin: 0 auto; display: grid; gap: 16px; }
.tab { display: grid; gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; box-shadow: var(--shadow); min-width: 0; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; box-shadow: var(--shadow); }
.kpi .label { color: var(--text-2); font-size: 12.5px; display: flex; align-items: center; gap: 6px; }
.kpi .value { font-size: 26px; font-weight: 650; margin-top: 2px; }
.kpi .sub { color: var(--text-3); font-size: 12px; }

.chart { position: relative; height: 180px; }
.chart svg { display: block; width: 100%; height: 100%; }
.chart .axis { fill: var(--text-3); font-size: 11px; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--text-2); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }

.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th { text-align: left; color: var(--text-3); font-weight: 500; font-size: 12px; padding: 6px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
table.data td { padding: 7px 10px; border-bottom: 1px solid var(--grid); vertical-align: top; }
table.data tr.clickable { cursor: pointer; }
table.data tr.clickable:hover td { background: var(--surface-2); }
table.data tr.flash td { animation: flash 1.2s ease-out; }
@keyframes flash { from { background: color-mix(in srgb, var(--accent) 18%, transparent); } to { background: transparent; } }
.num { text-align: right; }
td.num { text-align: right; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }
.nowrap { white-space: nowrap; }
.more { text-align: center; margin-top: 10px; }

.status { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.status .ico { width: 16px; height: 16px; border-radius: 50%; display: inline-grid; place-items: center; font-size: 10px; font-weight: 700; color: #fff; flex: none; }
.s-good .ico { background: var(--good); }
.s-critical .ico { background: var(--critical); }
.s-serious .ico { background: var(--serious); }
.s-warning .ico { background: var(--warning); color: #3a2a00; }
.s-neutral .ico { background: var(--neutral); }
.badge { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: .03em; padding: 2px 7px; border-radius: 6px; background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border); }

.chip { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); border-radius: 8px; padding: 3px 4px 3px 8px; margin: 2px 4px 2px 0; background: var(--surface); font-size: 12.5px; }
.chip.off { opacity: .5; text-decoration: line-through; }
.chip button { border: 0; background: none; color: var(--text-3); cursor: pointer; font: inherit; padding: 0 4px; border-radius: 5px; }
.chip button:hover { background: var(--surface-2); color: var(--text); }
.chip .apps { color: var(--text-3); font-size: 11.5px; }
.route-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; align-items: end; }
.route-form label { display: grid; gap: 4px; font-size: 12.5px; color: var(--text-2); }
.using-warn { color: var(--critical-ink); }

.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.seg button { border: 0; background: var(--surface); color: var(--text-2); padding: 5px 12px; font: inherit; cursor: pointer; }
.seg button.active { background: var(--surface-2); color: var(--text); font-weight: 600; }

.bar { height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; min-width: 60px; }
.bar > i { display: block; height: 100%; background: var(--good); border-radius: 3px; }

.live-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--neutral); margin-left: 6px; vertical-align: middle; }
.live-dot.on { background: var(--good); box-shadow: 0 0 0 3px color-mix(in srgb, var(--good) 25%, transparent); }

.drawer { position: fixed; inset: 0; background: rgba(0,0,0,.25); z-index: 20; display: flex; justify-content: flex-end; }
.drawer-inner { width: min(460px, 100%); height: 100%; overflow: auto; background: var(--surface); border-left: 1px solid var(--border); padding: 20px; }
.drawer .close { float: right; }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 6px 12px; margin: 14px 0; font-size: 13px; }
.kv dt { color: var(--text-3); }
.kv dd { margin: 0; word-break: break-all; }
.timeline { list-style: none; padding: 0; margin: 10px 0; }
.timeline li { display: flex; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--grid); }
.timeline li span:first-child { width: 110px; color: var(--text-3); }

.tooltip { position: fixed; z-index: 30; pointer-events: none; background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-size: 12.5px; box-shadow: 0 4px 16px rgba(0,0,0,.12); min-width: 140px; }
.tooltip .row { display: flex; justify-content: space-between; gap: 14px; }
.tooltip .row span:first-child { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 9px 16px; border-radius: 8px; z-index: 40; font-size: 13px; }

@media (max-width: 700px) {
  main { padding: 12px 16px; }
  .topbar { padding: 10px 16px; }
  .topright { margin-left: 0; }
  .kpi .value { font-size: 22px; }
}

/* long lists: scroll inside the card, header stays visible */
.scroll-box { max-height: 62vh; overflow: auto; border: 1px solid var(--grid); border-radius: 8px; }
table.sticky-head thead th { position: sticky; top: 0; background: var(--surface); z-index: 1; }
.pager { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.pager-btns { display: flex; gap: 6px; align-items: center; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.chips button { border: 1px solid var(--border); background: var(--surface); color: var(--text-2); border-radius: 999px; padding: 3px 10px; font: inherit; font-size: 12.5px; cursor: pointer; }
.chips button.active { background: var(--surface-2); color: var(--text); font-weight: 600; }

/* replies */
.tab-badge { display: inline-block; min-width: 18px; padding: 0 5px; margin-left: 4px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-size: 11px; font-weight: 700; line-height: 18px; text-align: center; }
.reply-text { max-width: 420px; white-space: pre-wrap; word-break: break-word; }
.reply-name { color: var(--text-3); font-size: 12px; }
.thread { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.bubble { max-width: 85%; padding: 8px 11px; border-radius: 12px; font-size: 13px; white-space: pre-wrap; word-break: break-word; border: 1px solid var(--border); }
.bubble.out { align-self: flex-end; background: var(--surface-2); border-bottom-right-radius: 4px; }
.bubble.in { align-self: flex-start; background: color-mix(in srgb, var(--good) 12%, var(--surface)); border-bottom-left-radius: 4px; }
.bubble .meta { display: block; margin-top: 4px; font-size: 11px; color: var(--text-3); }

/* sortable table headers */
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--text); }
th.sortable::after { content: " ↕"; opacity: .35; }
th.sortable.asc::after { content: " ↑"; opacity: 1; }
th.sortable.desc::after { content: " ↓"; opacity: 1; }
th.sortable.asc, th.sortable.desc { color: var(--text); font-weight: 600; }