/* SN80 OpenRoboto merge toolkit — light base, dark selected (not auto-flipped). */

:root {
  color-scheme: light;
  --page:        #f9f9f7;
  --surface-1:   #fcfcfb;
  --surface-2:   #f2f1ed;
  --text-1:      #0b0b0b;
  --text-2:      #52514e;
  --muted:       #898781;
  --grid:        #e1e0d9;
  --axis:        #c3c2b7;
  --border:      rgba(11, 11, 11, 0.10);
  --series-1:    #2a78d6;
  --series-2:    #eb6834;
  --series-3:    #1baf7a;
  --seq-200:     #9ec5f4;
  --seq-300:     #6da7ec;
  --seq-450:     #2a78d6;
  --seq-600:     #184f95;
  --good:        #0ca30c;
  --good-text:   #006300;
  --warning:     #fab219;
  --serious:     #ec835a;
  --critical:    #d03b3b;
  --shadow:      0 1px 2px rgba(11, 11, 11, .06), 0 8px 24px rgba(11, 11, 11, .06);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --page:      #0d0d0d;
    --surface-1: #1a1a19;
    --surface-2: #232322;
    --text-1:    #ffffff;
    --text-2:    #c3c2b7;
    --muted:     #898781;
    --grid:      #2c2c2a;
    --axis:      #383835;
    --border:    rgba(255, 255, 255, 0.10);
    --series-1:  #3987e5;
    --series-2:  #d95926;
    --series-3:  #199e70;
    --seq-200:   #184f95;
    --seq-300:   #256abf;
    --seq-450:   #3987e5;
    --seq-600:   #86b6ef;
    --good-text: #0ca30c;
    --shadow:    0 1px 2px rgba(0, 0, 0, .5), 0 8px 24px rgba(0, 0, 0, .45);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page:      #0d0d0d;
  --surface-1: #1a1a19;
  --surface-2: #232322;
  --text-1:    #ffffff;
  --text-2:    #c3c2b7;
  --muted:     #898781;
  --grid:      #2c2c2a;
  --axis:      #383835;
  --border:    rgba(255, 255, 255, 0.10);
  --series-1:  #3987e5;
  --series-2:  #d95926;
  --series-3:  #199e70;
  --seq-200:   #184f95;
  --seq-300:   #256abf;
  --seq-450:   #3987e5;
  --seq-600:   #86b6ef;
  --good-text: #0ca30c;
  --shadow:    0 1px 2px rgba(0, 0, 0, .5), 0 8px 24px rgba(0, 0, 0, .45);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--page); color: var(--text-1);
  font: 15px/1.55 var(--sans);
}
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
a { color: var(--series-1); }
code, .mono { font-family: var(--mono); font-size: .92em; }

/* ------------------------------------------------------------- chrome */
header {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 22px; background: var(--surface-1);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20;
}
.brand h1 { font-size: 17px; }
.brand .sub { font-size: 12px; color: var(--muted); display: block; margin-top: 1px; }
.spacer { flex: 1; }
.hdr-meta { font-size: 12px; color: var(--muted); font-family: var(--mono); }
button {
  font: inherit; font-size: 13px; padding: 6px 12px; border-radius: 7px;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text-1);
  cursor: pointer;
}
button:hover { background: var(--grid); }
button:disabled { opacity: .5; cursor: default; }

nav {
  display: flex; gap: 2px; padding: 0 18px; background: var(--surface-1);
  border-bottom: 1px solid var(--border); position: sticky; top: 59px; z-index: 19;
  overflow-x: auto;
}
nav button {
  border: none; background: none; border-radius: 0; padding: 10px 14px;
  color: var(--text-2); border-bottom: 2px solid transparent; white-space: nowrap;
}
nav button[aria-selected="true"] { color: var(--text-1); border-bottom-color: var(--series-1); font-weight: 600; }

main { padding: 20px 22px 64px; max-width: 1220px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

/* -------------------------------------------------------------- panels */
.panel {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px 20px; margin-bottom: 18px; box-shadow: var(--shadow);
}
.panel > h2 { font-size: 15px; margin-bottom: 4px; }
.panel .note, .note { font-size: 12.5px; color: var(--muted); font-weight: 400; }
.panel > p { color: var(--text-2); font-size: 13.5px; margin: 6px 0 14px; }
.panel > p:last-child { margin-bottom: 0; }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(178px, 1fr)); gap: 12px; margin-bottom: 18px; }
.tile {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px; box-shadow: var(--shadow);
}
.tile .k { font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.tile .v { font-size: 26px; font-weight: 600; margin-top: 4px; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.tile .s { font-size: 12px; color: var(--text-2); margin-top: 2px; }

/* -------------------------------------------------------------- tables */
.tw { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--grid); vertical-align: top; }
th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; white-space: nowrap; }
tbody tr:hover { background: var(--surface-2); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--mono); }
tr.sel { background: var(--surface-2); }

.badge {
  display: inline-flex; align-items: center; gap: 4px; font-size: 11.5px; font-weight: 600;
  padding: 2px 7px; border-radius: 999px; border: 1px solid var(--border); white-space: nowrap;
}
.badge.good { color: var(--good-text); border-color: var(--good); }
.badge.bad { color: var(--critical); border-color: var(--critical); }
.badge.warn { color: var(--text-1); border-color: var(--warning); }
.badge.flat { color: var(--text-2); }

.pill { font-family: var(--mono); font-size: 11.5px; color: var(--text-2); background: var(--surface-2);
        border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; white-space: nowrap; }

/* -------------------------------------------------------------- charts */
figure { margin: 0; }
figcaption { font-size: 12.5px; color: var(--muted); margin-top: 8px; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .axisline { stroke: var(--axis); stroke-width: 1; }
.chart .tick { fill: var(--muted); font-size: 11px; font-family: var(--sans); }
.chart .lbl { fill: var(--text-2); font-size: 11.5px; }
.chart .val { fill: var(--text-1); font-size: 11.5px; font-variant-numeric: tabular-nums; font-weight: 600; }
.chart .bar { rx: 4; }
.chart .bar:hover { stroke: var(--surface-1); stroke-width: 2; }
.chart .refline { stroke-dasharray: 4 3; stroke-width: 2; fill: none; }

.tooltip {
  position: fixed; pointer-events: none; z-index: 60; opacity: 0; transition: opacity .1s;
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: var(--shadow); padding: 8px 10px; font-size: 12.5px; max-width: 300px;
}
.tooltip.on { opacity: 1; }
.tooltip .tt-h { font-weight: 600; margin-bottom: 3px; }
.tooltip .tt-r { color: var(--text-2); font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------ controls */
.controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
label.fld { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-2); }
input[type="search"], input[type="text"], input[type="number"], select {
  font: inherit; font-size: 13px; padding: 5px 9px; border-radius: 7px;
  border: 1px solid var(--border); background: var(--surface-1); color: var(--text-1);
}
input[type="number"] { width: 78px; font-family: var(--mono); }
input[type="range"] { accent-color: var(--series-1); }

pre.cmd {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 9px;
  padding: 12px 14px; overflow-x: auto; font-family: var(--mono); font-size: 12.5px;
  line-height: 1.5; margin: 0 0 10px; color: var(--text-1);
}
.msg { border-left: 3px solid var(--muted); padding: 7px 12px; margin: 8px 0; font-size: 13px;
       background: var(--surface-2); border-radius: 0 7px 7px 0; }
.msg.block { border-left-color: var(--critical); }
.msg.warn { border-left-color: var(--warning); }
.msg.note { border-left-color: var(--series-1); }
.msg b { font-weight: 600; }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 3px 14px; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-family: var(--mono); font-size: 12.5px; word-break: break-all; }

details.row > summary { cursor: pointer; font-size: 12.5px; color: var(--series-1); list-style: none; }
details.row > summary::-webkit-details-marker { display: none; }
details.row > summary::before { content: "▸ "; }
details.row[open] > summary::before { content: "▾ "; }

.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 18px; }
.hero { font-size: 40px; font-weight: 600; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.hero.small { font-size: 30px; }
ul.tight { margin: 6px 0; padding-left: 20px; }
ul.tight li { margin: 3px 0; font-size: 13.5px; color: var(--text-2); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

@media (max-width: 640px) {
  main { padding: 16px 12px 48px; }
  header { padding: 12px 14px; }
  nav { top: 57px; }
  .hero { font-size: 32px; }
}