/* Bluebell National Workforce — Bluebird theme.
   Brand: electric blue-violet #5D4FFF, blue #0787D9, navy #00294B, cyan #7EF9FF.
   Chart palette: VALIDATED by the dataviz palette validator (all six checks
   pass in light mode; see ironbark.css notes). Categorical hues assigned in
   fixed slot order, never cycled. */

:root{
  /* brand */
  --brand:#5D4FFF; --blue:#0787D9; --cyan:#7EF9FF; --navy:#00294B;
  --bb-night:#00294B; --bb-royal:#5D4FFF; --bb-bloom:#0787D9; --bb-petal:#EDF1FA;
  --bb-petal-ink:#22365B;
  /* chrome */
  --page:#FFFFFF; --surface:#F7F9FC; --ink:#0F1E33; --ink-2:#4A5A72; --muted:#7B8CA4;
  --grid:#E4EAF2; --baseline:#CBD5E1; --border:rgba(15,30,51,0.10);
  --shadow:0 1px 2px rgba(15,30,51,.06),0 6px 20px rgba(15,30,51,.06);
  /* categorical chart palette — VALIDATED (worst adjacent deutan dE 9.2) */
  --c1:#5D4FFF; --c2:#A16207; --c3:#0E9594;
  --c4:#BE185D; --c5:#0787D9; --c6:#4D7C0F;
  --chart-surface:#F7F9FC; --chart-gap:#F7F9FC;
  /* status */
  --st-good:#16A34A; --st-warn:#D97706; --st-serious:#EA580C; --st-crit:#DC2626;
  --st-good-text:#15803D;
  --ribbon:#00294B; --ribbon-ink:#FFFFFF;
  /* sequentials */
  --seq1:#8AB0D9; --seq2:#6493C8; --seq3:#4173AE; --seq4:#255490; --seq5:#123568;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme=light]){
    --page:#0B1B33; --surface:#10274A; --ink:#E8F0FA; --ink-2:#B0C2D9; --muted:#7E93AD;
    --grid:#1D3A5F; --baseline:#2A4A74; --border:rgba(232,240,250,0.12);
    --c1:#6462F2; --c2:#C08A18; --c3:#249F9E;
    --c4:#CC1F68; --c5:#0B88DA; --c6:#669733;
    --chart-surface:#10274A; --chart-gap:#10274A;
    --bb-petal:#123055; --bb-petal-ink:#C6D6EC; --bb-night:#E8F0FA;
    --seq1:#33689F; --seq2:#4A80BC; --seq3:#649BD4; --seq4:#84B6E7; --seq5:#A9D2F5;
    --st-good-text:#6FCB7B;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 4px 16px rgba(0,0,0,.3);
  }
}
:root[data-theme=dark]{
  --page:#0B1B33; --surface:#10274A; --ink:#E8F0FA; --ink-2:#B0C2D9; --muted:#7E93AD;
  --grid:#1D3A5F; --baseline:#2A4A74; --border:rgba(232,240,250,0.12);
  --c1:#6462F2; --c2:#C08A18; --c3:#249F9E;
  --c4:#CC1F68; --c5:#0B88DA; --c6:#669733;
  --chart-surface:#10274A; --chart-gap:#10274A;
  --bb-petal:#123055; --bb-petal-ink:#C6D6EC; --bb-night:#E8F0FA;
  --seq1:#33689F; --seq2:#4A80BC; --seq3:#649BD4; --seq4:#84B6E7; --seq5:#A9D2F5;
  --st-good-text:#6FCB7B;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 4px 16px rgba(0,0,0,.3);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--page); color:var(--ink);
  font:15px/1.55 "DM Sans",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:"DM Sans",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--bb-royal)}
:root[data-theme=dark] a{color:var(--bb-bloom)}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--bb-bloom);outline-offset:2px;border-radius:4px}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}
[hidden]{display:none !important}

/* ===== masthead ===== */
.masthead{background:var(--surface);border-bottom:1px solid var(--border)}
.masthead-inner{max-width:1180px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.wordmark{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.wordmark .mark{width:34px;height:34px;border-radius:8px;background:var(--bb-royal);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;flex:none}
.wordmark-text{display:flex;flex-direction:column;line-height:1.15}
.wordmark .name{font-size:20px;font-weight:700;color:var(--bb-night)}
.wordmark .product{font-size:11px;font-weight:700;letter-spacing:.24em;color:var(--bb-royal);text-transform:uppercase}
.topnav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;margin-left:auto}
.topnav .nav-link{font-size:13px;font-weight:600;text-decoration:none;color:var(--ink-2);
  padding:7px 13px;border-radius:8px;border:1px solid transparent}
.topnav .nav-link:hover{background:var(--bb-petal);color:var(--bb-petal-ink)}
.topnav .nav-link.active{background:var(--bb-royal);border-color:var(--bb-royal);color:#fff}

/* ===== layout ===== */
.wrap{max-width:1180px;margin:0 auto;padding:34px 24px 60px;min-height:60vh}
.page-head{margin:0 0 24px}
.page-head .eyebrow{font-size:11px;font-weight:650;letter-spacing:.16em;text-transform:uppercase;color:var(--bb-royal)}
.page-head h1{font-size:29px;font-weight:700;margin:2px 0 6px}
.page-head p{color:var(--ink-2);max-width:800px;margin:0}

/* ===== cards / sections ===== */
.section{margin:0 0 34px}
.section > h2{font-size:19px;font-weight:650;margin:0 0 4px}
.section > .s-sub{font-size:13px;color:var(--muted);margin:0 0 16px;max-width:800px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:20px 22px;box-shadow:var(--shadow)}
.grid-2{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(340px,1fr))}

/* ===== stat tiles ===== */
.tiles{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin:0 0 24px}
.tile{background:var(--surface);border:1px solid var(--border);border-radius:12px;
  padding:16px 18px;box-shadow:var(--shadow);border-top:3px solid var(--bb-royal)}
.tile .t-label{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.02em;margin-bottom:6px}
.tile .t-value{font-size:30px;font-weight:700;color:var(--ink);line-height:1.1;font-variant-numeric:tabular-nums}
.tile .t-unit{font-size:15px;font-weight:600;color:var(--ink-2);margin-left:3px}
.tile .t-note{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.45}
.tile .t-basis{font-size:11px;color:var(--muted);border-top:1px dashed var(--baseline);padding-top:6px;margin-top:8px}

/* ===== chart anatomy ===== */
.figure{margin:0 0 22px}
.figure .fig-title{font-size:15px;font-weight:650;color:var(--ink);margin:0 0 2px}
.figure .fig-sub{font-size:12.5px;color:var(--muted);margin:0 0 10px}
.chartbox{background:var(--chart-surface);border:1px solid var(--border);
  border-radius:12px;padding:16px 18px;box-shadow:var(--shadow)}
.chartbox svg{display:block;width:100%;height:auto;overflow:visible}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin:0 0 12px;padding:0;list-style:none}
.legend li{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--ink-2)}
.legend .swatch{width:11px;height:11px;border-radius:3px;flex:none}
.bar{display:flex;align-items:flex-end;gap:8px;height:240px;margin:6px 0 4px}
.bar-col{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;flex:1;min-width:0}
.bar-col .b-fill{width:100%;max-width:52px;border-radius:5px 5px 0 0;background:var(--c1);min-height:2px}
.bar-col:nth-child(6n+2) .b-fill{background:var(--c2)}
.bar-col:nth-child(6n+3) .b-fill{background:var(--c3)}
.bar-col:nth-child(6n+4) .b-fill{background:var(--c4)}
.bar-col:nth-child(6n+5) .b-fill{background:var(--c5)}
.bar-col:nth-child(6n+6) .b-fill{background:var(--c6)}
.bar-col .b-val{font-size:12px;color:var(--ink-2);font-weight:600;margin-top:5px;font-variant-numeric:tabular-nums}
.bar-col .b-cat{font-size:11.5px;color:var(--muted);text-align:center;margin-top:3px;line-height:1.25}

/* ===== tables ===== */
.dtable{width:100%;border-collapse:collapse;margin-top:8px;font-size:13px}
.dtable caption{text-align:left;font-size:12.5px;color:var(--muted);padding-bottom:6px}
.dtable th,.dtable td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--border)}
.dtable th{background:var(--surface);font-weight:650;color:var(--ink-2);font-size:12px}
.dtable td.num,.dtable th.num{text-align:right;font-variant-numeric:tabular-nums}
.dtable tr:hover td{background:var(--bb-petal)}

/* ===== provenance / basis ===== */
.basis{color:var(--muted);font-size:11.5px;margin:8px 0 0}
.note{color:var(--ink-2);font-size:13px;border-left:3px solid var(--bb-royal);
  padding:8px 14px;margin:0 0 18px;background:var(--bb-petal);border-radius:0 8px 8px 0}
.nodata{color:var(--muted);font-style:italic;border:1px dashed var(--baseline);
  border-radius:8px;padding:14px 16px;margin:8px 0;max-width:70ch}
.placeholder-note{background:var(--bb-petal);color:var(--bb-petal-ink);
  border:1px solid var(--border);border-radius:10px;padding:10px 14px;
  font-size:13px;font-weight:600;margin:0 0 20px}

/* ===== news ===== */
.item{display:block;text-decoration:none;color:inherit;background:var(--surface);
  border:1px solid var(--border);border-radius:12px;padding:16px 18px;box-shadow:var(--shadow);
  margin-bottom:12px;transition:border-color .12s}
.item:hover{border-color:var(--bb-bloom)}
.item h3{font-size:15.5px;font-weight:650;margin:0 0 4px;color:var(--ink);line-height:1.35}
.item:hover h3{color:var(--bb-royal)}
.item .meta{font-size:12px;color:var(--muted);margin-bottom:6px;display:flex;gap:10px;flex-wrap:wrap}
.item .meta .src{font-weight:600;color:var(--bb-royal)}
.item p{font-size:13.5px;color:var(--ink-2);margin:0}
.group-date{font-size:12px;font-weight:650;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);margin:22px 0 8px}
.chip{cursor:pointer;border:1px solid var(--border);background:var(--surface);color:var(--ink-2);
  font-family:inherit;font-size:13px;font-weight:600;border-radius:999px;padding:7px 14px;
  display:inline-flex;align-items:center;gap:7px;transition:background .12s}
.chip:hover{background:var(--bb-petal);color:var(--ink)}
.chip.active{background:var(--bb-royal);border-color:var(--bb-royal);color:#fff}
.chip .s-count{font-weight:400;font-size:12px;opacity:.85}
.cat-row{display:flex;flex-wrap:wrap;gap:8px;margin:2px 0 12px}
.cat-note{font-size:12px;color:var(--muted);line-height:1.5;margin:0;max-width:860px}
.retry-btn{margin-left:8px;cursor:pointer;border:1px solid var(--border);background:var(--surface);
  color:var(--bb-royal);border-radius:6px;padding:3px 10px;font:inherit}
.empty{color:var(--muted);padding:40px;text-align:center;border:1px dashed var(--baseline);border-radius:12px}

/* ===== chat ===== */
.chat-panel{display:flex;flex-direction:column;height:70vh;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--surface)}
.chat-log{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:14px}
.msg{max-width:78%;padding:11px 15px;border-radius:12px;font-size:14px;line-height:1.55;white-space:pre-wrap}
.msg.user{align-self:flex-end;background:var(--bb-royal);color:#fff}
.msg.assistant{align-self:flex-start;background:var(--page);border:1px solid var(--border)}
.msg .cite{font-size:12px;color:var(--muted);margin-top:6px}
.chat-input{border-top:1px solid var(--border);padding:14px;display:flex;gap:10px;background:var(--page)}
.chat-input textarea{flex:1;border:1px solid var(--border);border-radius:10px;padding:11px 13px;
  font:inherit;font-size:14px;resize:none;background:var(--page);color:var(--ink)}
.chat-input textarea:focus{outline:none;border-color:var(--bb-bloom);box-shadow:0 0 0 3px rgba(7,135,217,.14)}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);
  background:var(--surface);border-radius:9px;padding:9px 16px;cursor:pointer;
  font-size:13.5px;font-weight:600;text-decoration:none;color:var(--ink-2)}
.btn:hover{background:var(--bb-petal);color:var(--ink)}
.btn-primary{background:var(--bb-royal);border-color:var(--bb-royal);color:#fff}
.btn-primary:hover{background:var(--blue);color:#fff}
.typing{color:var(--muted);font-size:13px;font-style:italic}

/* ===== footer ===== */
.sitefoot{border-top:1px solid var(--border);margin-top:12px;padding:22px 24px 30px;background:var(--surface)}
.foot-inner{max-width:1180px;margin:0 auto;font-size:12.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px 28px}
.sitefoot p{margin:0}
.sitefoot a{color:var(--bb-royal);text-decoration:none}

/* ===== responsive ===== */
@media (max-width:720px){
  .wrap{padding:22px 16px 40px}
  .topnav{margin-left:0;width:100%}
  .msg{max-width:92%}
}