/* Ridgeline Signal app — ported from reference/prototype.html v0.2.
   Brand tokens are the single source of truth (see /docs/brand-tokens.md).

   FONTS ARE SELF-HOSTED — fix register #6d closed. The woff2 files are latin subsets
   served from our own origin; the app makes NO third-party call at runtime, which is what
   a client-facing artefact requires (and what the prototype's Google CDN link violated).
   Both families are SIL Open Font Licence 1.1 — see /data-licences.md.
   font-display:swap so text renders immediately rather than blocking on the font. */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/spacegrotesk-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Sora';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/sora-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Sora';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/sora-600.woff2') format('woff2');
}
:root{
  --navy:#0E1B2E; --slate:#3B5067; --cobalt:#3D6BFF; --paper:#F4F6FA;
  --green:#1F8A5B; --rust:#C0492F; --hair:#E3E8F0; --muted:#6F8298;
  /* validated colour-vision-safe SERIES palette (never the brand accent as data) */
  --coal:#B5482E; --gas:#D98A1E; --batt:#3D6BFF; --renew:#1F8A5B;
  --bg:#F4F6FA; --card:#FFFFFF; --ink:#0E1B2E; --ink2:#3B5067; --ink3:#6F8298;
  --line:#E3E8F0; --grid:#EDF1F6; --chip:#EEF2F8; --accent:#3D6BFF;
  --pos:#1F8A5B; --neg:#C0492F;
  --shadow:0 1px 2px rgba(14,27,46,.05),0 8px 24px rgba(14,27,46,.06);
}
html[data-theme="dark"]{
  --bg:#0E1B2E; --card:#16273D; --ink:#F4F6FA; --ink2:#A9B7C8; --ink3:#7E90A6;
  --line:#24374F; --grid:#1B2C44; --chip:#1C2E47; --accent:#6E93FF;
  --coal:#D9603F; --gas:#E6AE42; --batt:#6E93FF; --renew:#3BB07E;
  --pos:#3BB07E; --neg:#E06B4C;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);
  font-family:'Sora','Inter',system-ui,-apple-system,Segoe UI,sans-serif;
  font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;transition:background .25s,color .25s}
h1,h2,h3,.wm,.tag,.big,.seg,.tab,.prod b{
  font-family:'Space Grotesk','SF Pro Display',system-ui,sans-serif}
a{color:var(--accent);text-decoration:none}
.wrap{max-width:1140px;margin:0 auto;padding:0 22px}

/* header */
header{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:18px;padding:14px 0}
.wm{font-weight:600;font-size:19px;letter-spacing:-.022em;color:var(--ink);display:flex;align-items:center;gap:10px}
.wm .mk{width:24px;height:24px;flex:0 0 auto}
.prod{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);padding-left:16px}
.prod b{font-weight:600;font-size:14px;letter-spacing:.02em}
.prod span{font-size:11px;color:var(--ink3)}
.grow{flex:1}
.snap{font-size:11.5px;color:var(--ink3);text-align:right;line-height:1.35}
.snap b{color:var(--ink2);font-weight:600}
.tbtn{border:1px solid var(--line);background:var(--card);color:var(--ink2);width:38px;height:34px;border-radius:9px;cursor:pointer;font-size:15px;display:grid;place-items:center}
.tbtn:hover{border-color:var(--accent);color:var(--accent)}

/* freshness strip (pipeline-health preview) */
.fresh{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--ink3);padding:10px 0 0}
.fresh .dot{width:8px;height:8px;border-radius:50%;background:var(--pos)}
.fresh .stale{background:var(--gas)}
.fresh a{margin-left:auto}

/* lens switcher */
.lensrow{display:flex;align-items:center;gap:14px;padding:16px 0 4px;flex-wrap:wrap}
.lenslab{font-size:11px;text-transform:uppercase;letter-spacing:.16em;color:var(--ink3);font-weight:600}
.seg{display:flex;background:var(--chip);border:1px solid var(--line);border-radius:12px;padding:4px;gap:2px;flex-wrap:wrap}
.seg button{border:0;background:transparent;color:var(--ink2);font-weight:600;font-size:13px;padding:8px 14px;border-radius:9px;cursor:pointer;display:flex;align-items:center;gap:8px;transition:.15s}
.seg button .cdot{width:9px;height:9px;border-radius:50%}
.seg button[aria-pressed="true"]{background:var(--card);color:var(--ink);box-shadow:var(--shadow)}
.seg button:hover{color:var(--ink)}

/* headline */
.head{margin:16px 0 8px;background:linear-gradient(180deg,var(--card),color-mix(in srgb,var(--card) 92%,var(--bg)));border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow)}
.head .k{font-size:11px;text-transform:uppercase;letter-spacing:.18em;font-weight:600;margin-bottom:6px;color:var(--accent)}
.head h2{margin:0;font-size:20px;line-height:1.32;font-weight:600;letter-spacing:.01em}
.head h2 em{font-style:normal;color:var(--accent)}

/* kpi tiles */
.kpis{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:14px 0}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:13px 14px;box-shadow:var(--shadow);min-width:0}
.kpi .lab{font-size:10.5px;text-transform:uppercase;letter-spacing:.09em;color:var(--ink3);font-weight:600;line-height:1.3;min-height:26px}
.kpi .big{font-weight:600;font-size:23px;letter-spacing:-.01em;margin:5px 0 3px;color:var(--ink)}
.kpi .sub{font-size:11.5px;color:var(--ink3);display:flex;align-items:center;gap:5px}
.kpi.na .big{color:var(--ink3);font-weight:500}

/* module card */
.mod{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;margin:16px 0;box-shadow:var(--shadow)}
.mod-h{display:flex;align-items:flex-start;gap:14px;margin-bottom:6px}
.mod-h .n{font-weight:700;font-size:12px;color:var(--accent);background:var(--chip);border:1px solid var(--line);width:28px;height:28px;border-radius:8px;display:grid;place-items:center;flex:0 0 auto}
.mod-h h3{margin:0;font-size:17px;font-weight:600;letter-spacing:.01em}
.mod-h p{margin:3px 0 0;font-size:12.5px;color:var(--ink3);max-width:66ch}
.tabs{display:flex;gap:2px;background:var(--chip);border:1px solid var(--line);border-radius:9px;padding:3px}
.tab{border:0;background:transparent;color:var(--ink3);font-size:11.5px;font-weight:600;padding:5px 10px;border-radius:6px;cursor:pointer}
.tab[aria-pressed="true"]{background:var(--card);color:var(--ink);box-shadow:var(--shadow)}

/* PROVENANCE CHIP (fix register #7 — source + as-at + method, at point of use) */
.prov{display:inline-flex;align-items:center;gap:8px;margin-top:12px;padding:6px 10px 6px 8px;background:var(--chip);border:1px solid var(--line);border-radius:999px;font-size:11.5px;color:var(--ink2)}
.prov .badge{font-family:'Space Grotesk',system-ui,sans-serif;font-weight:600;font-size:10px;letter-spacing:.06em;text-transform:uppercase;padding:2px 7px;border-radius:999px}
.prov .badge.sourced{background:color-mix(in srgb,var(--pos) 16%,transparent);color:var(--pos)}
.prov .badge.derived{background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--accent)}
.prov .badge.heuristic{background:color-mix(in srgb,var(--gas) 20%,transparent);color:var(--gas)}
.prov .src{font-weight:600;color:var(--ink)}
.prov .asat{color:var(--ink3)}
.prov a{color:var(--ink3);border-bottom:1px dotted var(--ink3)}

/* chart */
.chartwrap{position:relative;margin-top:12px}
svg.chart{display:block;width:100%;height:auto;overflow:visible}
.axlab{font-size:10.5px;fill:var(--ink3);font-family:'Sora',system-ui,sans-serif}
.gridln{stroke:var(--grid);stroke-width:1}
.legend{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px;font-size:12px;color:var(--ink2)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i.ln{height:3px;width:16px;border-radius:2px;display:inline-block}
.readout{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.pill{background:var(--chip);border:1px solid var(--line);border-radius:999px;padding:6px 13px;font-size:12.5px;color:var(--ink2)}
.pill b{font-family:'Space Grotesk',system-ui,sans-serif;font-weight:600;color:var(--ink)}
.pill.good b{color:var(--pos)} .pill.bad b{color:var(--neg)}
.action{margin-top:12px;font-size:12.5px;color:var(--ink2);padding-left:12px;border-left:2px solid var(--accent)}
.action b{color:var(--ink)}

/* table */
.tv{width:100%;border-collapse:collapse;margin-top:12px;font-size:12.5px;display:none}
.tv.show{display:table}
.tv th,.tv td{text-align:right;padding:7px 10px;border-bottom:1px solid var(--line)}
.tv th:first-child,.tv td:first-child{text-align:left}
.tv th{color:var(--ink3);font-weight:600;text-transform:uppercase;font-size:10.5px;letter-spacing:.06em}
.tv td b{font-family:'Space Grotesk',system-ui,sans-serif}

/* tooltip */
#tt{position:fixed;z-index:80;pointer-events:none;background:var(--navy);color:#fff;font-size:12px;border-radius:8px;padding:8px 10px;box-shadow:0 8px 24px rgba(0,0,0,.35);opacity:0;transition:opacity .1s;max-width:240px;line-height:1.4}
html[data-theme="dark"] #tt{background:#000}
#tt b{font-family:'Space Grotesk',system-ui,sans-serif}

footer{margin:30px 0 50px;padding-top:22px;border-top:1px solid var(--line);font-size:12px;color:var(--ink3)}
footer h4{font-family:'Space Grotesk',system-ui,sans-serif;font-size:11px;text-transform:uppercase;letter-spacing:.14em;color:var(--ink2);margin:0 0 7px}
.fgrid{display:grid;grid-template-columns:1.3fr 1fr;gap:26px;margin-bottom:20px}
.foot-b{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);padding-top:14px}
.badge2{font-size:10.5px;text-transform:uppercase;letter-spacing:.14em;color:var(--ink3)}
@media(max-width:920px){.kpis{grid-template-columns:repeat(3,1fr)}.fgrid{grid-template-columns:1fr}}
@media(max-width:560px){.kpis{grid-template-columns:repeat(2,1fr)}}