/* FLOW brand layer — loaded after each page's own styles.
   Palette from the FLOW logo: lime #C1D62E on brand grey #767A7A.
   Single dark control-room theme, deliberately: lime power flow reads best on charcoal. */
:root{
  --brand-lime:#C1D62E; --brand-grey:#767A7A; --brand-charcoal:#1C1F20;
  --bg:#1C1F20; --surface:#25292B; --zone:#2D3234; --line:#3B4144; --ink:#EEF1EC; --muted:#A3A9AA;
  --power:#C1D62E; --dead:#4A5154; --data:#8FC6D7; --chg:#8FC6D7;
  --ok:#C1D62E; --warn:#F2B233; --crit:#FF5F52;
  --display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --body:"Barlow",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:dark;
}
body{background:var(--bg);color:var(--ink);font-family:var(--body)}

/* ---------- brand bar ---------- */
.brandbar{background:var(--brand-grey);border-bottom:3px solid var(--brand-lime);position:sticky;top:0;z-index:20}
.bb-in{max-width:1400px;margin:0 auto;display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  padding:10px max(16px,env(safe-area-inset-right,0px)) 10px max(16px,env(safe-area-inset-left,0px))}
.bb-logo{display:block;line-height:0}
.bb-logo img{height:52px;width:auto}
.bb-nav{display:flex;gap:4px;flex-wrap:wrap}
.bb-nav a{font:600 15px var(--display);letter-spacing:.06em;text-transform:uppercase;color:#fff;text-decoration:none;padding:8px 12px;border-radius:3px}
.bb-nav a:hover{background:rgba(0,0,0,.14)}
.bb-nav a[aria-current="page"]{background:var(--brand-lime);color:var(--brand-charcoal)}
.bb-nav a:focus-visible{outline:2px solid #fff;outline-offset:2px}
.bb-right{margin-left:auto;display:flex;align-items:center;gap:14px;color:#fff;font-family:var(--mono);font-size:13px}
.bb-right .clock{color:#fff}
.live{display:inline-flex;align-items:center;gap:6px;font:600 12px var(--display);letter-spacing:.1em;text-transform:uppercase}
.live i{width:8px;height:8px;border-radius:50%;background:var(--brand-lime);box-shadow:0 0 0 3px rgba(193,214,46,.3);animation:beat 1.6s ease-in-out infinite}
@keyframes beat{50%{box-shadow:0 0 0 6px rgba(193,214,46,0)}}
@media (prefers-reduced-motion: reduce){.live i{animation:none}}

/* ---------- page title ---------- */
.eyebrow{color:var(--brand-lime)!important;font-family:var(--mono)}
h1{font-family:var(--display)!important;font-weight:700!important;text-transform:uppercase;letter-spacing:.02em}
.sim{color:var(--warn)!important;border-color:var(--warn)!important}

/* ---------- controls ---------- */
.seg button,.tabs button{background:var(--surface)!important;color:var(--ink)!important;border:1px solid var(--line)!important;
  font-family:var(--display)!important;font-weight:600!important;font-size:14px!important;letter-spacing:.04em;text-transform:uppercase}
.seg button:hover,.tabs button:hover{border-color:var(--brand-lime)!important}
.seg button[aria-pressed="true"],.tabs button[aria-selected="true"]{background:var(--brand-lime)!important;color:var(--brand-charcoal)!important;border-color:var(--brand-lime)!important}
.toggle{color:var(--muted)}
.toggle input{accent-color:var(--brand-lime)}

/* ---------- cards ---------- */
.kpi,.panel,.sheet{background:var(--surface)!important;border:1px solid var(--line)!important;border-radius:4px!important}
.kpi .k{color:var(--muted)!important}
.kpi .v{font-family:var(--display)!important;font-weight:600;font-size:30px!important;color:#fff}
.kpi .v small{color:var(--muted)}
.panel h2{font-family:var(--display)!important;text-transform:uppercase;letter-spacing:.04em;font-size:17px!important}
.sheet svg{background-image:radial-gradient(circle,rgba(255,255,255,.06) 1px,transparent 1.2px);background-size:22px 22px}

/* ---------- SLD elements ---------- */
.node{background:var(--zone)!important;border:1px solid #4A5154!important;color:var(--ink)!important}
.node.stale{border:1.5px dashed var(--crit)!important}
.load{background:var(--zone)!important;border:1px solid var(--line)!important;color:var(--ink)!important}
.encl{fill:rgba(255,255,255,.025)!important;stroke:#4A5154!important}
.dbbox{fill:var(--zone)!important;stroke:#5C6366!important}
.gen{fill:var(--zone)!important;stroke:var(--brand-lime)!important;stroke-width:2!important}
.bus{stroke:#D9DDD8!important}
.cbmask{fill:var(--surface)!important}
.ln.live{filter:drop-shadow(0 0 3px rgba(193,214,46,.45))}
.bar{background:#3A4043!important}
a{color:var(--brand-lime)}
.note{color:var(--muted)}
.log time{color:var(--muted)}
#k-sup{font-size:20px!important;line-height:1.3!important;padding-top:6px}