/* RoboLab dashboard. No framework, no CDN — everything needed is in this file. */

:root{
  color-scheme: light;
  --surface-0:#f4f4f2; --surface-1:#fcfcfb; --surface-2:#eeeeec;
  --text-primary:#0b0b0b; --text-secondary:#52514e; --text-muted:#78776f;
  --rule:#dededa; --rule-strong:#c9c9c3;
  /* validated categorical slots 1 and 2 — see HANDOFF.md before changing */
  --series-1:#2a78d6;   /* received by the robot */
  --series-2:#eb6834;   /* sent by the robot */
  --status-good:#1d6b3f; --status-good-bg:#e4f0e8;
  --status-warn:#8a5a12; --status-warn-bg:#f8eddb;
  --status-info:#1f5f8b; --status-info-bg:#e3eef6;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root:where(:not([data-theme="light"])){
    color-scheme: dark;
    --surface-0:#111110; --surface-1:#1a1a19; --surface-2:#232321;
    --text-primary:#ffffff; --text-secondary:#c3c2b7; --text-muted:#8d8c83;
    --rule:#33332f; --rule-strong:#46463f;
    --series-1:#3987e5; --series-2:#d95926;
    --status-good:#7ec79b; --status-good-bg:#1a2c21;
    --status-warn:#e0b970; --status-warn-bg:#2d2415;
    --status-info:#8ec4e8; --status-info-bg:#15242e;
  }
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --surface-0:#111110; --surface-1:#1a1a19; --surface-2:#232321;
  --text-primary:#ffffff; --text-secondary:#c3c2b7; --text-muted:#8d8c83;
  --rule:#33332f; --rule-strong:#46463f;
  --series-1:#3987e5; --series-2:#d95926;
  --status-good:#7ec79b; --status-good-bg:#1a2c21;
  --status-warn:#e0b970; --status-warn-bg:#2d2415;
  --status-info:#8ec4e8; --status-info-bg:#15242e;
}

*{box-sizing:border-box}
body{margin:0;background:var(--surface-0);color:var(--text-primary);
  font-family:var(--sans);font-size:15px;line-height:1.55;
  -webkit-font-smoothing:antialiased}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px 72px}

/* ---- provenance banner: the most important element on the page ---- */
.prov{margin:22px 0 26px;border:1px solid var(--rule-strong);border-radius:8px;
  background:var(--surface-1);overflow:hidden}
.prov-head{display:flex;flex-wrap:wrap;gap:12px;align-items:baseline;
  padding:15px 18px;border-bottom:1px solid var(--rule)}
.badge{font-family:var(--mono);font-size:.7rem;letter-spacing:.09em;
  text-transform:uppercase;padding:4px 9px;border-radius:4px;font-weight:600}
.badge.sample{background:var(--status-warn-bg);color:var(--status-warn)}
.badge.standin{background:var(--status-info-bg);color:var(--status-info)}
.badge.lab{background:var(--status-good-bg);color:var(--status-good)}
.prov-label{font-weight:600}
.prov-caveat{padding:13px 18px;color:var(--text-secondary);font-size:.9rem;margin:0}
.prov-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));
  gap:1px;background:var(--rule);border-top:1px solid var(--rule)}
.prov-stats div{background:var(--surface-1);padding:12px 18px 14px}
.prov-stats dt{font-family:var(--mono);font-size:.67rem;letter-spacing:.09em;
  text-transform:uppercase;color:var(--text-muted);margin:0 0 3px}
.prov-stats dd{margin:0;font-size:1.02rem;font-weight:600;font-variant-numeric:tabular-nums;
  overflow-wrap:anywhere;word-break:break-word;line-height:1.35;min-width:0}
.prov-stats div{min-width:0}

header.top{padding:34px 0 0}
header.top h1{font-size:1.72rem;margin:0 0 4px;letter-spacing:-.015em}
header.top p{margin:0;color:var(--text-secondary)}

.panel{background:var(--surface-1);border:1px solid var(--rule);border-radius:8px;
  padding:19px 21px 22px;margin:0 0 20px}
.panel > h2{font-size:1.06rem;margin:0 0 3px;letter-spacing:-.01em}
.panel .q{margin:0 0 16px;color:var(--text-secondary);font-size:.9rem}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:860px){.grid2{grid-template-columns:1fr}}

/* ---- hero number ---- */
.hero{font-size:3rem;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;
  margin:6px 0 8px}
.hero-sub{color:var(--text-secondary);font-size:.92rem;margin:0}

/* ---- tables ---- */
table.data{width:100%;border-collapse:collapse;font-size:.9rem}
table.data th{text-align:left;font-family:var(--mono);font-size:.67rem;
  letter-spacing:.09em;text-transform:uppercase;color:var(--text-muted);
  font-weight:500;padding:0 12px 8px 0;border-bottom:1px solid var(--rule-strong);
  white-space:nowrap}
table.data td{padding:9px 12px 9px 0;border-bottom:1px solid var(--rule);
  color:var(--text-secondary);vertical-align:top}
table.data td.name{color:var(--text-primary);font-weight:500}
table.data td.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
table.data tr:last-child td{border-bottom:0}
.swatch{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:7px;
  vertical-align:baseline}

/* ---- legend ---- */
.legend{display:flex;gap:16px;flex-wrap:wrap;margin:0 0 12px;
  font-size:.82rem;color:var(--text-secondary)}
.legend span{display:inline-flex;align-items:center;gap:6px}

/* ---- svg chart ---- */
.chart{width:100%;height:auto;display:block;overflow:visible}
.chart .grid{stroke:var(--rule);stroke-width:1}
.chart .axis{stroke:var(--rule-strong);stroke-width:1}
.chart text{font-family:var(--mono);font-size:9.5px;fill:var(--text-muted)}
.chart .vlabel{fill:var(--text-secondary);font-weight:600}
.bar{transition:opacity .12s}
.bar:hover{opacity:.78;cursor:pointer}

/* ---- tooltip ---- */
#tip{position:fixed;pointer-events:none;z-index:50;opacity:0;transition:opacity .1s;
  background:var(--surface-1);border:1px solid var(--rule-strong);border-radius:6px;
  padding:9px 12px;font-size:.82rem;box-shadow:0 4px 18px rgba(0,0,0,.16);
  max-width:280px;color:var(--text-primary)}
#tip .t-title{font-weight:600;margin-bottom:4px}
#tip .t-row{color:var(--text-secondary);font-variant-numeric:tabular-nums}

/* ---- notes / callouts ---- */
.note{border-left:3px solid var(--status-info);background:var(--status-info-bg);
  padding:12px 16px;border-radius:0 5px 5px 0;margin:16px 0 0;font-size:.89rem;
  color:var(--text-secondary)}
.note strong{color:var(--text-primary)}
.empty{color:var(--text-muted);font-style:italic;padding:14px 0}

/* ---- table-view toggle (accessibility: every chart has a table) ---- */
.tv-btn{background:none;border:1px solid var(--rule-strong);border-radius:5px;
  color:var(--text-secondary);font:inherit;font-size:.78rem;padding:4px 10px;
  cursor:pointer;margin-top:12px}
.tv-btn:hover{color:var(--text-primary);border-color:var(--text-muted)}

footer.foot{margin-top:34px;padding-top:18px;border-top:1px solid var(--rule);
  color:var(--text-muted);font-size:.82rem}
code{font-family:var(--mono);font-size:.88em;background:var(--surface-2);
  padding:1px 5px;border-radius:3px}