/* Itron Power Flow Platform — shell theme (dark monitoring) */
:root {
  --bg: #06090d;
  --bg-panel: #0b1117;
  --bg-panel-2: #0e151d;
  --border: #1b2733;
  --text: #c9d6e2;
  --text-dim: #5d7185;
  --green: #2bd97c;
  --cyan: #2dd4d4;
  --amber: #e8b53e;
  --red: #f25c54;
  --violet: #7b61ff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

[hidden] { display: none !important; }

body {
  background: radial-gradient(ellipse at 50% 30%, #0a1018 0%, var(--bg) 70%);
  color: var(--text);
  font-family: 'Segoe UI', 'Roboto Mono', system-ui, sans-serif;
  font-size: 12px;
  min-height: 100vh;
}

/* ---------- top bar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 8px 16px; border-bottom: 1px solid var(--border);
  background: rgba(8, 12, 17, .9); min-height: 52px;
}
.brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand-logo { height: 26px; width: auto; display: block; }
.brand-name { font-weight: 700; letter-spacing: 1.5px; color: #fff; white-space: nowrap; font-size: 12px; }
.brand-sub { font-size: 8px; color: var(--text-dim); letter-spacing: 1px; white-space: nowrap; }
.nav {
  display: flex; flex-wrap: nowrap; align-items: center;
  flex: 1 1 auto; justify-content: center; min-width: 0;
  overflow-x: auto; scrollbar-width: none;
}
.nav::-webkit-scrollbar { display: none; }
.nav a { white-space: nowrap; }
.top-status { flex: 0 0 auto; }
@media (max-width: 1560px) { .brand-sub { display: none; } .nav a { margin: 0 6px; font-size: 11px; } .top-stat { display: none; } }
@media (max-width: 1400px) { #platform-version, #system-mode { display: none; } }
@media (max-width: 1250px) { .badge-sf { display: none; } }
@media (max-width: 1000px) { .brand-name { font-size: 0; } .online { display: none; } }
.badge {
  font-size: 9px; padding: 2px 6px; border: 1px solid var(--border);
  border-radius: 3px; color: var(--text-dim);
}
.badge-ok { color: var(--green); border-color: var(--green); }
.nav a {
  color: var(--text-dim); text-decoration: none; margin: 0 12px; font-size: 12px;
}
.nav a.active, .nav a:hover { color: #fff; }
.top-status { display: flex; align-items: center; gap: 18px; }
.top-stat .lbl { color: var(--text-dim); font-size: 9px; display: block; }
.top-stat .val { color: #fff; font-weight: 600; }
.clock {
  font-family: 'Consolas', monospace; background: #000; padding: 2px 6px;
  border-radius: 3px; color: var(--green); letter-spacing: 2px;
}
.online { color: var(--green); font-size: 11px; }
.dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 6px var(--green);
}

/* ---------- config bar ---------- */
.configbar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 6px 16px; border-bottom: 1px solid var(--border);
  background: var(--bg-panel); font-size: 11px; color: var(--text-dim);
}
.configbar input {
  background: #060a0e; color: var(--text); border: 1px solid var(--border);
  border-radius: 3px; padding: 3px 6px; margin-left: 4px; font-size: 11px;
}
.configbar button {
  background: var(--cyan); color: #042; border: none; border-radius: 3px;
  padding: 4px 14px; font-weight: 700; cursor: pointer;
}
.cfg-note { margin-left: auto; }
.cfg-auto { display: inline-flex; align-items: center; gap: 6px; }
.cfg-auto input[type="checkbox"] {
  background: #060a0e; margin-left: 0; width: 13px; height: 13px;
  accent-color: var(--cyan); cursor: pointer;
}
.cfg-auto input[type="number"] { width: 52px; }

/* ---------- layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 250px 1fr 250px;
  gap: 10px; padding: 10px 16px;
}
.col-left, .col-right { display: flex; flex-direction: column; gap: 10px; }
.col-center { display: flex; flex-direction: column; gap: 10px; min-width: 0; }

.panel {
  background: var(--bg-panel); border: 1px solid var(--border);
  border-radius: 6px; padding: 10px;
}
.panel-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 8px;
}
.panel-head h2 {
  font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: #fff;
}
.panel-head h2.accent { color: var(--cyan); }
.panel-tag { font-size: 9px; color: var(--text-dim); }

/* ---------- rankings ---------- */
.rank-table { width: 100%; border-collapse: collapse; font-size: 11px; }
.rank-table th {
  text-align: left; color: var(--text-dim); font-size: 9px;
  border-bottom: 1px solid var(--border); padding: 2px 4px;
}
.rank-table td { padding: 4px; border-bottom: 1px solid #10181f; }
.rank-table .ckt { font-family: Consolas, monospace; font-size: 10px; }
.rank-table .neg { color: var(--red); }
.rank-table .pos { color: var(--green); }
.rank-led {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
}
.led-red { background: var(--red); box-shadow: 0 0 5px var(--red); }
.led-green { background: var(--green); box-shadow: 0 0 5px var(--green); }

/* ---------- trend clusters ---------- */
.trend-item { margin-bottom: 10px; }
.trend-label {
  display: flex; justify-content: space-between; font-size: 10px;
  color: var(--text-dim); margin-bottom: 3px;
}
.trend-label b { color: var(--cyan); }
.trend-bars { display: flex; align-items: flex-end; gap: 2px; height: 30px; }
.trend-bars i {
  flex: 1; background: var(--green); border-radius: 1px 1px 0 0; opacity: .85;
  min-height: 2px;
}
.trend-bars i.dim { background: #1d2c3a; }
.trend-meta { font-size: 9px; color: var(--text-dim); margin-top: 2px; }
.trend-meta b { color: var(--green); }

/* ---------- legends / kpis ---------- */
.legend-row { display: flex; gap: 12px; margin-bottom: 6px; }
.lg { font-size: 9px; color: var(--text-dim); display: flex; align-items: center; gap: 4px; }
.sw { width: 8px; height: 8px; border-radius: 2px; display: inline-block; }
.sw-green { background: var(--green); }
.sw-cyan { background: var(--cyan); }
.sw-amber { background: var(--amber); }
.sw-red { background: var(--red); }
.progress-row { display: flex; gap: 18px; margin-top: 8px; }
.kpi { text-align: center; flex: 1; }
.kpi-val { display: block; font-size: 20px; font-weight: 700; color: var(--green); }
.kpi-lbl { font-size: 9px; color: var(--text-dim); text-transform: uppercase; }

/* ---------- center viz ---------- */
.viz-panel { flex: 1; display: flex; flex-direction: column; }
.viz-info { display: flex; gap: 14px; font-size: 10px; color: var(--text-dim); }
.viz-info b { color: #fff; }
.node-grid {
  flex: 1; display: grid; grid-template-columns: repeat(7, 1fr);
  gap: 10px; padding: 18px; align-content: center; min-height: 320px;
}
.node {
  position: relative; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg-panel-2); padding: 8px; text-align: center;
  transition: box-shadow .3s;
}
.node .n-id { font-size: 9px; color: var(--text-dim); }
.node .n-val { font-size: 14px; font-weight: 700; color: #fff; }
.node .n-sub { font-size: 8px; color: var(--text-dim); }
.node::before {
  content: ''; position: absolute; top: 6px; right: 6px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--text-dim);
}
.node.completed::before { background: var(--green); box-shadow: 0 0 6px var(--green); }
.node.running::before { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); animation: pulse 1.5s infinite; }
.node.failed::before { background: var(--red); box-shadow: 0 0 6px var(--red); }
.node.completed { border-color: #1d4a32; }
.node.running { border-color: #1c4a4a; }
.node.failed { border-color: #5a2522; }
@keyframes pulse { 50% { opacity: .3; } }
.viz-legend { display: flex; gap: 16px; padding: 4px 8px 0; }

/* ---------- center bottom ---------- */
.center-bottom {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 10px;
}
.detail-card { text-align: left; }
.detail-big { font-size: 26px; font-weight: 700; color: #fff; font-family: Consolas, monospace; }
.detail-lbl { font-size: 9px; color: var(--text-dim); text-transform: uppercase; margin-bottom: 8px; }
.detail-rows div {
  display: flex; justify-content: space-between; font-size: 10px;
  padding: 2px 0; color: var(--text-dim);
}
.detail-rows b { color: var(--text); }
.gauge-card { text-align: center; position: relative; }
.gauge-card canvas { margin: 4px auto 0; display: block; }
.gauge-val {
  position: absolute; top: 56px; left: 0; right: 0;
  font-size: 16px; font-weight: 700; color: #fff;
}
.gauge-lbl { font-size: 10px; color: var(--text); margin-top: 6px; }
.gauge-lbl span { font-size: 8px; color: var(--text-dim); }

/* ---------- right column ---------- */
.job-rows div {
  display: flex; justify-content: space-between; padding: 4px 0;
  font-size: 11px; color: var(--text-dim);
  border-bottom: 1px solid #10181f;
}
.job-rows b { color: #fff; font-family: Consolas, monospace; }
.pill {
  background: var(--green); color: #032; padding: 1px 8px; border-radius: 3px;
  font-size: 9px;
}
.pos { color: var(--green) !important; }
.neg { color: var(--red) !important; }
.cyan { color: var(--cyan) !important; }
.job-sub { font-size: 9px; color: var(--text-dim); margin-top: 8px; line-height: 1.5; }

.query-list { list-style: none; }
.query-list li {
  display: flex; justify-content: space-between; align-items: center;
  padding: 5px 0; border-bottom: 1px solid #10181f; font-size: 10px;
}
.query-list .q-key { color: var(--text); font-family: Consolas, monospace; }
.query-list .q-key .q-dot { margin-right: 6px; }
.query-list .q-min { color: var(--amber); font-weight: 700; }
.q-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.q-dot.warn { background: var(--amber); }

.stat-rows div {
  display: flex; justify-content: space-between; font-size: 10px;
  padding: 3px 0; color: var(--text-dim);
}
.stat-rows b { color: var(--text); font-family: Consolas, monospace; }
.tiles { display: flex; gap: 8px; margin-top: 10px; }
.tile {
  flex: 1; text-align: center; border: 1px solid var(--border); border-radius: 5px;
  padding: 6px 2px;
}
.tile b { display: block; font-size: 14px; }
.tile span { font-size: 8px; color: var(--text-dim); }
.tile-green b { color: var(--green); }
.tile-amber b { color: var(--amber); }
.tile-red b { color: var(--red); }

canvas#overall-chart { width: 100% !important; height: 130px !important; }
canvas#util-chart { width: 100% !important; height: 90px !important; }

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .node-grid { grid-template-columns: repeat(7, 1fr); }
}

/* ---------- dashboard landing (launcher) ---------- */
.home-view { --home-muted: #8fa6bb; padding: 28px 24px 38px; display: flex; flex-direction: column; gap: 22px; max-width: 1320px; margin: 0 auto; width: 100%; }
.home-hero { display: grid; grid-template-columns: 1fr 1.13fr; align-items: center; gap: 34px; background: linear-gradient(110deg, var(--bg-panel) 35%, var(--bg-panel-2)); border: 1px solid var(--border); border-radius: 8px; padding: 28px 30px; overflow: hidden; }
.home-eyebrow { color: var(--cyan); font-size: 10px; font-weight: 600; letter-spacing: 1.6px; text-transform: uppercase; display: flex; align-items: center; gap: 9px; }
.home-eyebrow-line { width: 22px; height: 2px; background: var(--cyan); }
.home-title { font-size: clamp(30px, 3.2vw, 44px); line-height: 1.08; color: var(--text); font-weight: 650; letter-spacing: -1.6px; margin-top: 18px; }
.home-title span { color: var(--cyan); }
.home-sub { margin-top: 14px; color: var(--home-muted); font-size: 12px; line-height: 1.75; max-width: 48ch; }
.home-hero-foot { display: flex; align-items: center; gap: 12px; margin-top: 24px; font-size: 9px; font-weight: 600; letter-spacing: 1.4px; color: var(--home-muted); }
.home-hero-foot i { width: 3px; height: 3px; background: var(--cyan); border-radius: 50%; }
.home-grid-figure { color: var(--cyan); min-width: 0; }
.home-figure-heading, .home-grid-figure figcaption { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 10px; color: var(--home-muted); }
.home-figure-heading { padding: 0 6px 10px; }
.home-figure-heading > span:first-child { color: var(--text); font-size: 11px; font-weight: 600; }
.home-illustrative { font-size: 9px; padding: 3px 6px; border: 1px solid var(--border); border-radius: 3px; }
.home-feeder { display: block; width: 100%; height: auto; }
.home-feeder-line { opacity: .45; }
.home-grid-load { color: var(--green); }
.home-schematic-label { color: var(--home-muted); font: 8px Consolas, monospace; letter-spacing: .5px; }
.home-grid-figure figcaption { border-top: 1px solid var(--border); padding: 12px 6px 0; font-size: 9px; }
.home-phase-key { display: flex; gap: 6px; align-items: center; }
.home-phase-key i { width: 6px; height: 6px; border: 1px solid var(--cyan); border-radius: 50%; }
.home-overview { padding: 0 2px; }
.home-overview-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 15px; }
.home-overview-heading .home-eyebrow { color: var(--home-muted); font-size: 9px; }
#home-status-note { color: var(--home-muted); font-size: 10px; }
.home-status-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); background: var(--bg-panel); border: 1px solid var(--border); border-radius: 6px; padding: 16px 0; }
.home-stat { min-width: 0; padding: 0 22px; border-left: 1px solid var(--border); }
.home-stat:first-child { border: 0; }
.home-stat .lbl { display: block; font-size: 9px; color: var(--home-muted); text-transform: uppercase; letter-spacing: .85px; margin-bottom: 8px; }
.home-stat b { display: block; color: var(--text); font-size: 15px; font-weight: 600; overflow-wrap: anywhere; }
.home-stat b.ok { color: var(--green); }
.home-stat b.busy { color: var(--amber); }
.home-stat-detail { color: var(--home-muted); display: block; font-size: 10px; margin-top: 5px; }
.home-section-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: -8px; }
.home-section-heading h2 { color: var(--text); font-size: 16px; font-weight: 600; letter-spacing: -.25px; }
.home-section-heading > span { color: var(--home-muted); font-size: 10px; }
.home-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.home-card { --accent: var(--cyan); display: flex; flex-direction: column; gap: 16px; text-align: left; background: var(--bg-panel); border: 1px solid var(--border); border-radius: 6px; padding: 18px 20px; cursor: pointer; color: var(--text); font: inherit; position: relative; overflow: hidden; transition: border-color .18s, transform .18s, background .18s; }
.home-card::before { content: ''; position: absolute; inset: 0 0 auto; height: 2px; background: var(--accent); opacity: .7; }
.home-card:hover { border-color: var(--accent); background: var(--bg-panel-2); transform: translateY(-2px); }
.home-card:focus-visible, .home-link:focus-visible { outline: 2px solid var(--accent, var(--cyan)); outline-offset: 3px; }
.home-card-sim { --accent: var(--green); }
.home-card-bench { --accent: var(--cyan); }
.home-card-mon { --accent: var(--amber); }
.home-card-preview { display: block; color: var(--accent); padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.home-card-preview svg { display: block; width: 100%; height: 78px; }
.home-preview-caption { display: flex; justify-content: space-between; gap: 8px; color: var(--home-muted); font-size: 9px; margin-top: 3px; }
.home-preview-caption > span { font-size: 8px; }
.home-card-body { display: flex; flex-direction: column; gap: 7px; flex: 1; }
.home-card-kicker { font-size: 9px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--accent); }
.home-card-title { font-size: 17px; font-weight: 600; color: var(--text); letter-spacing: -.25px; }
.home-card-desc { font-size: 11px; line-height: 1.7; color: var(--home-muted); }
.home-card-tags { display: flex; flex-wrap: wrap; gap: 5px 8px; margin-top: 4px; }
.home-card-tags i { font-style: normal; font-size: 9px; color: var(--home-muted); background: var(--bg-panel-2); padding: 3px 6px; border-radius: 3px; }
.home-card-go { display: flex; justify-content: space-between; font-size: 9px; letter-spacing: 1px; text-transform: uppercase; color: var(--accent); font-weight: 600; padding-top: 8px; }
.home-card-go > span { font-size: 17px; line-height: 10px; }
.home-secondary { display: flex; flex-direction: column; gap: 10px; }
.home-secondary-head { display: flex; justify-content: space-between; gap: 10px; font-size: 9px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--home-muted); }
.home-secondary-head > span { letter-spacing: 0; text-transform: none; }
.home-secondary-head b { font-weight: 500; }
.home-links { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.home-link { display: flex; flex-direction: column; gap: 5px; text-align: left; background: transparent; border: 0; border-left: 1px solid var(--border); padding: 16px 18px; cursor: pointer; color: var(--text); font: inherit; transition: background .18s; }
.home-link:first-child { border-left: 0; }
.home-link:hover { background: var(--bg-panel-2); }
.home-link b { font-size: 11px; color: var(--text); display: flex; justify-content: space-between; gap: 5px; }
.home-link b::after { content: '↗'; color: var(--cyan); }
.home-link span { font-size: 10px; color: var(--home-muted); line-height: 1.5; }
html[data-theme=light] .home-view { --home-muted: #50697e; }
@media (max-width: 1050px) { .home-view { padding: 22px 20px 32px; } .home-hero { gap: 20px; padding: 24px; } .home-card { padding: 16px; } .home-card-title { font-size: 15px; } .home-stat { padding: 0 15px; } }
@media (max-width: 760px) { .home-hero { grid-template-columns: 1fr; gap: 26px; } .home-title { font-size: 38px; } .home-sub { max-width: 56ch; } .home-grid-figure { max-width: 560px; width: 100%; margin: 0 auto; } .home-cards { grid-template-columns: 1fr; } .home-card-preview svg { height: 94px; } .home-card { padding: 20px; } .home-card-title { font-size: 18px; } .home-status-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 0; } .home-stat { padding: 16px; } .home-stat:nth-child(3) { border-left: 0; } .home-stat:nth-child(n+3) { border-top: 1px solid var(--border); } .home-links { grid-template-columns: repeat(2, minmax(0, 1fr)); } .home-link:nth-child(3) { border-left: 0; } .home-link:nth-child(n+3) { border-top: 1px solid var(--border); } .home-section-heading > span { display: none; } }
@media (max-width: 430px) { .home-view { padding: 18px 12px 28px; gap: 20px; } .home-hero { padding: 24px 18px 18px; } .home-title { font-size: 36px; } .home-hero-foot { font-size: 8px; } .home-figure-heading { flex-wrap: wrap; } .home-figure-heading > span:first-child { font-size: 10px; } .home-illustrative { font-size: 8px; } .home-grid-figure figcaption { font-size: 8px; } .home-overview-heading .home-eyebrow { font-size: 8px; letter-spacing: 1px; } #home-status-note { font-size: 9px; } .home-stat { padding: 15px 12px; } .home-stat b { font-size: 14px; } .home-stat .lbl { font-size: 8px; letter-spacing: .5px; } .home-link { padding: 14px 12px; } }
@media (prefers-reduced-motion: reduce) { .home-card, .home-link { transition: none; } .home-card:hover { transform: none; } }

/* ---------- diagnostics view ---------- */
.diag-view { padding: 10px 16px; display: flex; flex-direction: column; gap: 10px; }
.diag-config .diag-fields {
  display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px;
}
.diag-fields label {
  display: flex; flex-direction: column; gap: 3px;
  font-size: 9px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .5px;
}
.diag-fields input, .diag-fields select {
  background: #060a0e; color: var(--text); border: 1px solid var(--border);
  border-radius: 3px; padding: 5px 7px; font-size: 11px;
}
.diag-fields .diag-opt { text-transform: none; color: #3f5163; }
.diag-fields button, .diag-actions button {
  background: var(--cyan); color: #042; border: none; border-radius: 3px;
  padding: 6px 16px; font-weight: 700; cursor: pointer; font-size: 11px;
}
.diag-fields button:hover, .diag-actions button:hover { filter: brightness(1.1); }
.diag-actions button:disabled {
  background: #1b2733; color: #4a5b6b; cursor: not-allowed; filter: none;
}
.diag-msg { margin-top: 8px; font-size: 11px; min-height: 14px; }
.diag-msg-error { color: var(--red); }
.diag-msg-ok { color: var(--green); }
.diag-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.set-hint { margin-top: 10px; font-size: 11px; color: var(--text-dim); }

/* Settings: Snowflake connection form */
.conn-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}
.conn-grid label {
  display: flex; flex-direction: column; gap: 3px;
  font-size: 9px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .5px;
}
.conn-grid input,
.conn-grid select {
  background: #060a0e; color: var(--text); border: 1px solid var(--border);
  border-radius: 3px; padding: 5px 7px; font-size: 11px; width: 100%; box-sizing: border-box;
}
.conn-grid .conn-field-disabled { opacity: .58; }
.conn-grid input:disabled { cursor: not-allowed; }
.conn-actions { margin-top: 14px; }
.conn-actions button {
  background: var(--cyan); color: #042; border: none; border-radius: 3px;
  padding: 7px 20px; font-weight: 700; cursor: pointer; font-size: 11px;
}
.conn-actions button:hover { filter: brightness(1.1); }
.conn-actions button:disabled {
  background: #1b2733; color: #4a5b6b; cursor: not-allowed; filter: none;
}
.conn-actions button.danger { background: var(--red); color: #fff; }
.panel-tag.conn-on  { color: var(--green); font-weight: 700; }
.panel-tag.conn-off { color: var(--text-dim); }

.query-editor-panel { display: flex; flex-direction: column; gap: 12px; }
.query-editor-layout {
  display: grid;
  grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
  gap: 12px;
}
.query-nav-panel,
.query-editor-main {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-panel-2);
  padding: 10px;
  min-width: 0;
}
.query-nav-head,
.query-editor-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
}
.query-nav-head {
  color: var(--text-dim);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .6px;
  margin-bottom: 8px;
}
.query-nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 460px;
  overflow: auto;
}
.query-nav-empty {
  color: var(--text-dim);
  font-size: 11px;
  padding: 18px 10px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 4px;
}
.query-nav-btn {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: #091018;
  color: var(--text);
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
}
.query-nav-btn:hover,
.query-nav-btn:focus-visible {
  border-color: var(--cyan);
  outline: none;
  box-shadow: 0 0 0 1px rgba(45, 212, 212, .25);
}
.query-nav-btn.active {
  border-color: var(--cyan);
  background: #0c1822;
}
.query-nav-btn.customized { border-color: rgba(232, 181, 62, .45); }
.query-nav-btn.customized.active { border-color: var(--amber); }
.query-nav-title {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
  font-size: 11px;
}
.query-nav-state {
  color: var(--text-dim);
  font-size: 9px;
  letter-spacing: .8px;
}
.query-nav-state.customized { color: var(--amber); }
.query-nav-desc {
  margin-top: 4px;
  color: var(--text-dim);
  font-size: 10px;
  line-height: 1.4;
}
.query-editor-main { display: flex; flex-direction: column; gap: 10px; }
.query-editor-head h3 {
  font-size: 12px;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: #fff;
}
.query-editor-desc {
  margin-top: 4px;
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.5;
}
.query-chip-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.query-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 9px;
  letter-spacing: .8px;
  color: var(--text-dim);
  background: #091018;
}
.query-chip.customized {
  color: var(--amber);
  border-color: rgba(232, 181, 62, .45);
}
.query-chip.dirty {
  color: var(--cyan);
  border-color: rgba(45, 212, 212, .45);
}
.query-editor-label {
  color: var(--text-dim);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .6px;
}
.query-editor-sql,
.query-default-sql {
  width: 100%;
  background: #060a0e;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 10px;
  font-size: 11px;
  line-height: 1.5;
  font-family: Consolas, 'Roboto Mono', monospace;
}
.query-editor-sql {
  min-height: 320px;
  resize: vertical;
}
.query-default-wrap summary {
  cursor: pointer;
  color: var(--text-dim);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .6px;
}
.query-default-wrap[open] summary { margin-bottom: 8px; }
.query-default-sql {
  max-height: 220px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.query-editor-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.query-editor-actions button {
  background: var(--cyan);
  color: #042;
  border: none;
  border-radius: 3px;
  padding: 7px 16px;
  font-weight: 700;
  cursor: pointer;
  font-size: 11px;
}
.query-editor-actions button.secondary {
  background: #13202a;
  color: var(--text);
  border: 1px solid var(--border);
}
.query-editor-actions button:hover { filter: brightness(1.1); }
.query-editor-actions button:disabled {
  background: #1b2733;
  border-color: #1b2733;
  color: #4a5b6b;
  cursor: not-allowed;
  filter: none;
}

.diag-tables { display: grid; grid-template-columns: 230px 1fr; gap: 10px; }
.diag-panel { display: flex; flex-direction: column; min-width: 0; }
.diag-actions { display: flex; align-items: center; gap: 10px; }
.diag-selcount { font-size: 10px; color: var(--text-dim); }
.diag-scroll { position: relative; overflow: auto; max-height: 70vh; }

/* narrow circuit list (matches PKL view) */
#diag-circuits { table-layout: fixed; width: 100%; }
#diag-circuits .diag-check { width: 26px; }
#diag-circuits .ckt {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.diag-table { width: 100%; border-collapse: collapse; font-size: 11px; }
.diag-table th {
  position: sticky; top: 0; z-index: 1;
  text-align: left; color: var(--text-dim); font-size: 9px;
  background: var(--bg-panel); border-bottom: 1px solid var(--border);
  padding: 5px 6px; white-space: nowrap; text-transform: uppercase;
}
.diag-table td {
  padding: 4px 6px; border-bottom: 1px solid #10181f;
  vertical-align: top; word-break: break-word;
}
.diag-table tr:hover td { background: var(--bg-panel-2); }
.diag-table .ckt { font-family: Consolas, monospace; font-size: 10px; color: var(--cyan); }
.diag-table .warn-text { color: var(--amber); }
.diag-table .diag-empty { color: var(--text-dim); text-align: center; padding: 18px; }
.diag-check { width: 28px; text-align: center; }
.diag-check input { cursor: pointer; }

/* sortable / resizable results headers */
#diag-results { table-layout: fixed; }
.diag-th-inner {
  display: flex; align-items: center; gap: 4px;
  cursor: pointer; user-select: none; overflow: hidden;
}
.diag-th-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.diag-sort-ind { color: var(--cyan); font-size: 9px; flex: none; }
.diag-resizer {
  position: absolute; top: 0; right: 0; width: 6px; height: 100%;
  cursor: col-resize; user-select: none;
}
.diag-resizer:hover { background: var(--cyan); opacity: .4; }
.diag-table th { position: sticky; }
.diag-th-cell { position: relative; }
.diag-filter-row th {
  position: sticky; top: 26px; z-index: 1;
  padding: 3px 4px; background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
}
.diag-filter-row input {
  width: 100%; box-sizing: border-box;
  background: #060a0e; color: var(--text); border: 1px solid var(--border);
  border-radius: 3px; padding: 3px 5px; font-size: 10px;
}

.diag-busy {
  display: flex; align-items: center; gap: 8px; justify-content: center;
  padding: 16px; color: var(--cyan); font-size: 11px;
}
.spinner {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid #1b2733; border-top-color: var(--cyan);
  display: inline-block; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 980px) {
  .diag-tables { grid-template-columns: 1fr; }
  .query-editor-layout { grid-template-columns: 1fr; }
  .query-nav-list { max-height: none; }
  .query-editor-head { flex-direction: column; }
  .query-chip-row { justify-content: flex-start; }
}

/* ---------- pkl view ---------- */
.pkl-view { padding: 10px 16px; display: flex; flex-direction: column; gap: 10px; }

.pkl-layout {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 10px;
}

.pkl-circuit-pane { display: flex; flex-direction: column; min-width: 0; }
.pkl-net-pane     { display: flex; flex-direction: column; min-width: 0; }

/* narrow circuit list */
.pkl-ckt-table { table-layout: fixed; width: 100%; }
.pkl-ckt-table th:first-child,
.pkl-ckt-table td:first-child { width: auto; overflow: hidden; }
.pkl-ckt-table th:last-child,
.pkl-ckt-table td:last-child  { width: 108px; }
.pkl-ckt-key {
  font-family: Consolas, monospace; font-size: 10px; color: var(--cyan);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.pkl-ckt-btn-cell { display: flex; justify-content: flex-end; gap: 4px; padding-right: 4px; }
.pkl-view-btn,
.pkl-load-btn {
  background: #0e2c2c; color: var(--cyan); border: 1px solid var(--cyan);
  border-radius: 3px; padding: 2px 8px; font-size: 10px; cursor: pointer; white-space: nowrap;
}
.pkl-load-btn { background: #14290f; color: var(--green); border-color: var(--green); }
.pkl-view-btn:hover { background: var(--cyan); color: #042; }
.pkl-load-btn:hover { background: var(--green); color: #042; }
.pkl-view-btn:disabled,
.pkl-load-btn:disabled { opacity: .55; cursor: not-allowed; }
tr.pkl-selected td { background: #0e2233 !important; }

/* tab bar */
.pkl-tabs {
  display: flex; flex-wrap: wrap; gap: 4px;
  padding-bottom: 6px; margin-bottom: 6px;
  border-bottom: 1px solid var(--border);
  min-height: 28px;
}
.pkl-tab {
  background: var(--bg-panel-2); color: var(--text-dim);
  border: 1px solid var(--border); border-radius: 3px;
  padding: 3px 10px; font-size: 10px; cursor: pointer;
  font-family: Consolas, monospace;
}
.pkl-tab:hover { color: #fff; border-color: #3a5168; }
.pkl-tab.active { background: #0e2233; color: var(--cyan); border-color: var(--cyan); }

/* tab content */
.pkl-tab-content { overflow: hidden; flex: 1; min-height: 0; }
.pkl-table-wrap  { overflow: auto; max-height: 65vh; }
.pkl-table-wrap .diag-table th { position: sticky; top: 0; z-index: 2; }

@media (max-width: 980px) {
  .pkl-layout { grid-template-columns: 1fr; }
}

/* ---------- embedded surfaces (Power Flow HUD, Benchmark workbench) ---------- */
.embed-view {
  display: flex; flex-direction: column;
  height: calc(100vh - 52px);          /* fill below the top bar */
  padding: 0; background: #000;
}
.embed-frame {
  flex: 1; width: 100%; border: 0; background: #000; display: block;
}
.badge-sf { color: var(--text-dim); border-color: var(--border); letter-spacing: .5px; }
.badge-sf.on { color: var(--cyan); border-color: var(--cyan); }

/* Account controls and persistent application status */
:root { --statusbar-height: 36px; --shell-header-height: 52px; }
body { padding-bottom: var(--statusbar-height); }
body.auth-pending > main, body.auth-pending > .configbar,
body.auth-locked > main, body.auth-locked > .configbar,
body.auth-pending .nav, body.auth-locked .nav { display: none !important; }
.statusbar { position: fixed; inset: auto 0 0; z-index: 60; min-height: var(--statusbar-height); display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 7px 16px; background: var(--bg-panel); border-top: 1px solid var(--border); font-size: 10px; }
.statusbar-left, .status-time { display: flex; align-items: center; gap: 12px; min-width: 0; }
.statusbar #system-mode, .statusbar .badge-sf { display: inline-block; }
.statusbar .badge-sf { max-width: 330px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.statusbar .lbl { color: var(--status-muted, #94a8bb); margin-right: 5px; }
.statusbar .badge-sf:not(.on) { color: var(--status-muted, #94a8bb); }
.status-load, .status-time { white-space: nowrap; }
.status-time { margin-left: auto; gap: 2px; }
.statusbar .clock { font-size: 11px; letter-spacing: 1px; }
.embed-view { height: calc(100dvh - var(--shell-header-height) - var(--statusbar-height)); }
.account-control { position: relative; flex: 0 0 auto; }
.account-button, .account-secondary, .account-menu button, .auth-tabs button, .account-close { font: inherit; color: var(--text); cursor: pointer; background: var(--bg-panel-2); border: 1px solid var(--border); border-radius: 4px; }
.account-button { display: flex; align-items: center; gap: 8px; padding: 5px 9px; min-height: 34px; }
#account-name { max-width: 145px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-avatar { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 4px; color: var(--cyan); background: color-mix(in srgb, var(--cyan) 12%, transparent); font-size: 10px; font-weight: 700; }
.account-menu { position: absolute; right: 0; top: calc(100% + 8px); z-index: 100; width: 250px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: 6px; box-shadow: 0 12px 35px #0006; padding: 7px; }
.account-menu p { color: var(--text-dim); padding: 8px; overflow-wrap: anywhere; }
.account-menu button { display: block; width: 100%; text-align: left; padding: 10px; border: 0; background: transparent; }
.account-menu button:hover, .account-secondary:hover { background: var(--bg-panel-2); color: var(--cyan); }
.account-button:hover, .account-button[aria-expanded=true] { border-color: var(--cyan); }
.account-primary { border: 1px solid var(--cyan); background: var(--cyan); color: #06282b; border-radius: 4px; padding: 10px 18px; font: inherit; font-weight: 700; cursor: pointer; }
.account-primary:hover { filter: brightness(1.1); }
.account-primary:disabled, .account-secondary:disabled { opacity: .55; cursor: wait; }
.account-secondary { padding: 6px 10px; }
.account-control :focus-visible, .account-dialog :focus-visible, .auth-welcome :focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
/* Public home: an engineering editorial layout, separate from the signed-in dashboard. */
.auth-welcome { --welcome-muted: #94a8bb; max-width: 1280px; margin: 0 auto; padding: 64px 48px 48px; }
.welcome-hero { display: grid; grid-template-columns: 1fr 1.03fr; gap: 55px; align-items: center; }
.welcome-eyebrow { color: var(--welcome-muted); font-size: 10px; font-weight: 650; letter-spacing: 2px; display: flex; align-items: center; gap: 10px; }
.welcome-eyebrow > span { width: 22px; height: 2px; background: var(--cyan); }
.auth-welcome h1 { font-size: clamp(42px, 4.6vw, 64px); font-weight: 650; line-height: 1.06; margin: 23px 0; letter-spacing: -2.4px; color: var(--text); }
.auth-welcome h1 em { font-style: normal; color: var(--cyan); }
.welcome-intro { max-width: 430px; color: var(--welcome-muted); font-size: 15px; line-height: 1.8; }
.welcome-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 29px; }
.welcome-actions button { min-height: 44px; padding: 11px 23px; font-size: 13px; }
.welcome-actions .account-primary span { padding-left: 28px; }
.welcome-message { color: var(--welcome-muted); max-width: 410px; font-size: 11px; line-height: 1.6; min-height: 36px; margin-top: 15px; }
.welcome-network { margin: 0; padding: 20px 16px 17px; background: linear-gradient(145deg, var(--bg-panel-2), var(--bg-panel)); border: 1px solid var(--border); border-radius: 5px; position: relative; }
.welcome-network::before { content: ''; position: absolute; top: -1px; left: 20px; width: 60px; height: 2px; background: var(--cyan); }
.welcome-diagram-head { display: flex; justify-content: space-between; gap: 12px; color: var(--welcome-muted); font-size: 9px; font-weight: 600; letter-spacing: 1.2px; padding: 0 4px 14px; }
.welcome-diagram-mark { color: var(--cyan); }
.welcome-network > svg { display: block; width: 100%; height: auto; }
.welcome-network-lines { color: #59758b; }
.welcome-network-source, .welcome-network-flow { color: var(--cyan); }
.welcome-network-load, .welcome-network-junction { color: var(--green); }
.welcome-diagram-label { color: var(--welcome-muted); font-family: monospace; font-size: 8px; letter-spacing: .5px; }
.welcome-network figcaption { border-top: 1px solid var(--border); padding: 15px 4px 0; margin-top: 12px; display: flex; justify-content: space-between; gap: 10px; color: var(--welcome-muted); font-size: 9px; }
.welcome-network figcaption i { display: inline-block; width: 5px; height: 5px; background: var(--green); border-radius: 50%; margin-right: 6px; }
.welcome-capabilities { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 54px; padding-top: 28px; border-top: 1px solid var(--border); }
.welcome-capability { min-width: 0; }
.welcome-capability + .welcome-capability { border-left: 1px solid var(--border); padding-left: 30px; }
.welcome-capability > svg { width: 155px; height: 48px; display: block; margin-bottom: 20px; color: var(--green); }
.welcome-capability:nth-child(2) > svg { color: var(--cyan); }
.welcome-capability:nth-child(3) > svg { color: var(--amber); }
.welcome-step { color: var(--welcome-muted); font-size: 9px; letter-spacing: 1.6px; font-weight: 600; }
.welcome-capability h2 { font-size: 16px; letter-spacing: -.3px; margin: 9px 0; font-weight: 600; }
.welcome-capability p { color: var(--welcome-muted); font-size: 12px; line-height: 1.75; max-width: 315px; }
.welcome-account-note { display: flex; align-items: center; gap: 15px; border-top: 1px solid var(--border); margin-top: 36px; padding-top: 23px; }
.welcome-note-icon { font-size: 26px; color: var(--cyan); }
.welcome-account-note p { font-size: 11px; line-height: 1.7; color: var(--welcome-muted); }
.welcome-account-note strong { color: var(--text); font-weight: 600; margin-right: 3px; }
.welcome-note-end { margin-left: auto; color: var(--welcome-muted); font-size: 8px; letter-spacing: 1.5px; white-space: nowrap; }
[data-theme="light"] .auth-welcome { --welcome-muted: #52667b; }
[data-theme="light"] .welcome-network-source, [data-theme="light"] .welcome-network-flow, [data-theme="light"] .welcome-diagram-mark, [data-theme="light"] .welcome-note-icon { color: #087f86; }
[data-theme="light"] .welcome-network-load, [data-theme="light"] .welcome-network-junction { color: #12834b; }
@media (max-width: 1000px) {
  .auth-welcome { padding: 44px 30px; }
  .welcome-hero { gap: 28px; }
  .auth-welcome h1 { font-size: 46px; }
  .welcome-intro { font-size: 13px; }
  .welcome-diagram-head { font-size: 8px; letter-spacing: .7px; }
  .welcome-diagram-mark { display: none; }
  .welcome-capabilities { gap: 20px; }
  .welcome-capability + .welcome-capability { padding-left: 20px; }
  .welcome-note-end { display: none; }
}
@media (max-width: 680px) {
  .auth-welcome { padding: 36px 22px; }
  .welcome-hero { grid-template-columns: 1fr; gap: 24px; }
  .auth-welcome h1 { font-size: 46px; margin: 20px 0; }
  .welcome-intro { font-size: 14px; }
  .welcome-message { min-height: 0; }
  .welcome-network { padding: 16px 10px; }
  .welcome-capabilities { grid-template-columns: 1fr; margin-top: 30px; padding-top: 8px; gap: 0; }
  .welcome-capability, .welcome-capability + .welcome-capability { display: grid; grid-template-columns: 76px 1fr; gap: 20px; align-items: center; padding: 24px 0; border-left: 0; border-bottom: 1px solid var(--border); }
  .welcome-capability > svg { width: 76px; height: 48px; margin: 0; }
  .welcome-capability h2 { font-size: 15px; }
  .welcome-account-note { margin-top: 0; border-top: 0; }
}

.account-dialog { margin: auto; width: min(440px, calc(100% - 32px)); max-height: calc(100dvh - 48px); overflow: auto; background: var(--bg-panel); color: var(--text); border: 1px solid var(--border); border-radius: 10px; padding: 26px; box-shadow: 0 24px 100px #0009; }
.account-dialog::backdrop { background: #02070dc9; backdrop-filter: blur(3px); }
.account-dialog-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.account-close { width: 30px; height: 30px; font-size: 22px; line-height: 1; }
.account-dialog h2 { font-size: 25px; letter-spacing: -.5px; margin-bottom: 8px; }
.account-description { color: var(--text-dim); font-size: 12px; line-height: 1.6; margin-bottom: 20px; overflow-wrap: anywhere; }
.auth-tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.auth-tabs button { flex: 1; background: transparent; border: 0; border-radius: 0; padding: 11px; color: var(--text-dim); border-bottom: 2px solid transparent; }
.auth-tabs button[aria-pressed=true] { border-color: var(--cyan); color: var(--cyan); }
.account-dialog label { display: flex; flex-direction: column; gap: 7px; margin-bottom: 15px; font-size: 11px; font-weight: 600; }
.account-dialog input, .account-dialog select { width: 100%; height: 39px; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 4px; padding: 8px 10px; font: inherit; font-size: 13px; }
.account-dialog .account-primary { width: 100%; }
.account-hint { color: var(--text-dim); font-size: 11px; line-height: 1.65; }
.account-message { min-height: 18px; margin: 12px 0; font-size: 12px; line-height: 1.5; color: var(--red); }
.account-message.success { color: var(--green); }
.preferences-dialog { width: min(570px, calc(100% - 32px)); }
.preferences-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
.account-sessions { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }
.account-section-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.account-section-head h3 { font-size: 13px; }
.session-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.session-info { min-width: 0; }
.session-info strong { display: block; font-size: 11px; overflow-wrap: anywhere; }
.session-info small { display: block; color: var(--text-dim); margin-top: 5px; line-height: 1.5; }
.session-row button { flex-shrink: 0; }
html[data-theme=light] { --bg: #edf2f6; --bg-panel: #fff; --bg-panel-2: #e6edf3; --border: #c8d3dd; --text: #182d40; --text-dim: #536b7e; --green: #168047; --cyan: #007d83; --amber: #936600; --red: #b9302a; color-scheme: light; }
html[data-theme=dark] { color-scheme: dark; }
html[data-theme=light] body { background: var(--bg); }
html[data-theme=light] .topbar { background: #f9fbfd; }
html[data-theme=light] .brand-name, html[data-theme=light] .nav a.active, html[data-theme=light] .nav a:hover, html[data-theme=light] .panel-head h2, html[data-theme=light] .home-title, html[data-theme=light] .home-card-title, html[data-theme=light] .home-link b { color: var(--text); }
html[data-theme=light] .clock { background: var(--bg-panel-2); }
html[data-theme=light] .statusbar { --status-muted: #536b7e; }
html[data-theme=light] .statusbar .clock { color: #106f3d; }
html[data-theme=light] .account-primary { color: white; }
html[data-theme=light] input, html[data-theme=light] select, html[data-theme=light] textarea { background: var(--bg-panel); color: var(--text); }
@media (max-width: 1000px) { .topbar { flex-wrap: wrap; } .topbar .brand { flex: 1; } .topbar .brand-name { font-size: 11px; } .nav { order: 3; flex-basis: 100%; justify-content: flex-start; padding: 8px 0 3px; } .nav a { margin: 0 16px 0 0; } }
@media (max-width: 600px) { :root { --statusbar-height: 52px; } .topbar { padding: 8px 12px; } .brand { gap: 7px; } .brand-name { letter-spacing: .5px; } .brand-logo { height: 21px; } #account-name { max-width: 92px; } .statusbar { padding: 6px 10px; gap: 8px; } .statusbar-left { flex-wrap: wrap; gap: 5px 8px; max-width: 65%; } .statusbar .badge-sf { max-width: 175px; font-size: 8px; } .status-load { font-size: 9px; } .status-time { flex-direction: column; align-items: flex-end; gap: 4px; } .status-time .lbl { font-size: 8px; margin: 0; } .statusbar .clock { padding: 0; background: none; font-size: 10px; } .account-dialog { padding: 20px; } .preferences-grid { gap: 0 12px; } }
@media (prefers-reduced-motion: reduce) { .account-dialog::backdrop { backdrop-filter: none; } }