/*
 * control-room.css — hand-written dark control-room theme for EuroRing Control.
 *
 * "Grid operator at 3am": dark and warm, calm, dense, legible. No framework.
 * Layout: top KPI strip · large central ring-map · tab strip + panels · control bar.
 * The ring-map area must never force horizontal page scroll.
 */

:root {
  /* base surfaces — warm-tinted slate, deliberately not pure black */
  --bg:            #0e1218;
  --bg-2:         #141a22;
  --panel:        #182029;
  --panel-2:      #1e2731;
  --edge:         #2b3745;
  --edge-soft:    #223040;

  /* text */
  --ink:          #dbe4ee;
  --ink-dim:      #8fa0b3;
  --ink-faint:    #5f6f80;

  /* status palette (shared with ring-map.js) */
  --ok:           #3ddc84;
  --warn:         #f5b942;
  --crit:         #ff5c5c;
  --offline:      #6b7686;
  --accent:       #56b6ff;   /* export / cool */
  --accent-warm:  #c58bff;   /* import / warm */

  --mono: ui-monospace, "SFMono-Regular", "Cascadia Code", "JetBrains Mono", Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --radius: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;               /* the page never scrolls sideways */
}

.control-room {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 1600px;
  margin: 0 auto;
  padding: 12px;
  gap: 12px;
}

/* ============================================================ top bar / title */
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 4px 6px;
}
.topbar .brand {
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 15px;
  color: var(--ink);
}
.topbar .brand span { color: var(--accent); }
.topbar .spacer { flex: 1; }

#conn-status {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--edge);
  color: var(--offline);
}
#conn-status[data-online="1"] { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--edge)); }
#conn-status[data-online="0"] { color: var(--crit); border-color: color-mix(in srgb, var(--crit) 40%, var(--edge)); }

/* ============================================================ KPI strip */
.kpi-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
}
.kpi {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--edge-soft);
  border-radius: var(--radius);
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.kpi .label {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.kpi .value {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.kpi .value .unit { font-size: 11px; color: var(--ink-dim); font-weight: 400; }
.kpi .spark { height: 30px; margin-top: 2px; }

/* frequency / rocof / hq deviation banding */
[data-band="ok"]   { color: var(--ok); }
[data-band="warn"] { color: var(--warn); }
[data-band="crit"] { color: var(--crit); }

/* state chip colouring */
#kpi-state { font-size: 15px; letter-spacing: 0.06em; }
[data-state="Normal"]              { color: var(--ok); }
[data-state="Degraded"]            { color: var(--warn); }
[data-state="FailSafeWithdrawal"]  { color: var(--crit); }
[data-state="Restoration"]         { color: var(--accent); }

/* ============================================================ sparklines */
.spark-svg { width: 100%; height: 100%; display: block; }
.spark-line { fill: none; stroke: var(--accent); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.spark-base { stroke: var(--edge); stroke-width: 1; stroke-dasharray: 2 3; vector-effect: non-scaling-stroke; }
.spark-dot  { fill: var(--ink); }
#spark-frequency .spark-line { stroke: var(--ok); }
#spark-carried   .spark-line { stroke: var(--accent); }
#spark-available .spark-line { stroke: var(--accent-warm); }

/* ============================================================ main stage */
.stage {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
  gap: 12px;
  flex: 1;
  min-height: 0;
}
@media (max-width: 1080px) {
  .stage { grid-template-columns: 1fr; }
}

/* ring-map area — must never overflow horizontally */
.map-wrap {
  position: relative;
  background:
    radial-gradient(120% 120% at 50% 40%, #12181f 0%, #0c1015 70%, #0a0d12 100%);
  border: 1px solid var(--edge-soft);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 420px;
  display: flex;
}
.ring-map-svg {
  width: 100%;
  height: 100%;
  max-width: 100%;
  display: block;
}

/* map state banner overlay */
.map-wrap[data-state]::after { content: none; }

/* legend */
.map-legend {
  position: absolute;
  left: 10px;
  bottom: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  font-size: 10px;
  color: var(--ink-dim);
  background: rgba(10, 14, 18, 0.6);
  border: 1px solid var(--edge-soft);
  border-radius: 6px;
  padding: 6px 8px;
  max-width: calc(100% - 20px);
}
.map-legend .li { display: inline-flex; align-items: center; gap: 4px; }
.map-legend .sw { width: 14px; height: 4px; border-radius: 2px; display: inline-block; }
.sw-live { background: var(--ok); }
.sw-derated { background: var(--warn); }
.sw-tripped { background: var(--crit); }
.sw-withdrawn { background: var(--offline); }

/* ============================================================ side / tabs */
.side {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--edge-soft);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 0;
}
.tab-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  padding: 6px 6px 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--edge-soft);
}
.tab-button {
  appearance: none;
  border: 1px solid transparent;
  border-bottom: none;
  background: transparent;
  color: var(--ink-dim);
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 10px;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
}
.tab-button:hover { color: var(--ink); }
.tab-button.active {
  color: var(--ink);
  background: var(--panel);
  border-color: var(--edge-soft);
}

.tab-panels { position: relative; flex: 1; overflow: auto; }
.tab-panel { display: none; padding: 10px; }
.tab-panel.active { display: block; }

/* ============================================================ data tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.data-table th {
  text-align: left;
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 4px 8px;
  border-bottom: 1px solid var(--edge);
  position: sticky;
  top: 0;
  background: var(--panel);
}
.data-table td {
  padding: 5px 8px;
  border-bottom: 1px solid var(--edge-soft);
  color: var(--ink);
  vertical-align: middle;
}
.data-table tr:hover td { background: var(--panel-2); }
.data-table .mono, .mono { font-family: var(--mono); }
.empty { color: var(--ink-faint); font-style: italic; padding: 8px; }

/* pills / tiers / health */
.pill {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  padding: 1px 7px;
  border-radius: 999px;
  border: 1px solid transparent;
  white-space: nowrap;
}
.pill-live      { color: var(--ok);      border-color: color-mix(in srgb, var(--ok) 45%, transparent);   background: color-mix(in srgb, var(--ok) 12%, transparent); }
.pill-derated   { color: var(--warn);    border-color: color-mix(in srgb, var(--warn) 45%, transparent); background: color-mix(in srgb, var(--warn) 12%, transparent); }
.pill-tripped   { color: var(--crit);    border-color: color-mix(in srgb, var(--crit) 45%, transparent); background: color-mix(in srgb, var(--crit) 12%, transparent); }
.pill-withdrawn { color: var(--offline); border-color: color-mix(in srgb, var(--offline) 45%, transparent); background: color-mix(in srgb, var(--offline) 12%, transparent); }

.tier {
  font-family: var(--mono);
  font-weight: 700;
  padding: 0 6px;
  border-radius: 4px;
}
.tier-A { color: #0e1218; background: var(--accent); }
.tier-B { color: var(--ink); background: var(--edge); }
.tier-C { color: var(--ink-dim); background: var(--edge-soft); }

.h-ok   { color: var(--ok); }
.h-warn { color: var(--warn); }
.h-crit { color: var(--crit); }

/* incidents / state hero */
.state-hero {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 10px;
  border: 1px solid var(--edge);
  background: var(--panel-2);
}
.state-hero .state-label { font-size: 20px; font-weight: 700; letter-spacing: 0.06em; }
.state-hero .state-clock { font-family: var(--mono); color: var(--ink-dim); }
.state-hero[data-state="Normal"]             { border-color: color-mix(in srgb, var(--ok) 40%, var(--edge)); }
.state-hero[data-state="Normal"] .state-label{ color: var(--ok); }
.state-hero[data-state="Degraded"]           { border-color: color-mix(in srgb, var(--warn) 40%, var(--edge)); }
.state-hero[data-state="Degraded"] .state-label { color: var(--warn); }
.state-hero[data-state="FailSafeWithdrawal"] { border-color: color-mix(in srgb, var(--crit) 55%, var(--edge)); background: color-mix(in srgb, var(--crit) 8%, var(--panel-2)); }
.state-hero[data-state="FailSafeWithdrawal"] .state-label { color: var(--crit); }
.state-hero[data-state="Restoration"]        { border-color: color-mix(in srgb, var(--accent) 40%, var(--edge)); }
.state-hero[data-state="Restoration"] .state-label { color: var(--accent); }

.incident-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.incident {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 8px;
  padding: 8px 10px;
  border-radius: 6px;
  background: var(--panel-2);
  border-left: 3px solid var(--edge);
}
.incident .inc-sev { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.incident .inc-title { font-weight: 600; }
.incident .inc-meta { grid-column: 2; font-size: 11px; color: var(--ink-faint); font-family: var(--mono); }
.incident.sev-major, .incident.sev-critical { border-left-color: var(--crit); }
.incident.sev-major .inc-sev, .incident.sev-critical .inc-sev { color: var(--crit); }
.incident.sev-minor, .incident.sev-warning { border-left-color: var(--warn); }
.incident.sev-minor .inc-sev, .incident.sev-warning .inc-sev { color: var(--warn); }
.incident.sev-info .inc-sev { color: var(--accent); }
.incident-list .empty { color: var(--ink-faint); font-style: italic; }

/* ============================================================ control bar */
.control-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--edge-soft);
  border-radius: var(--radius);
}
.control-group {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-right: 10px;
  border-right: 1px solid var(--edge-soft);
}
.control-group:last-child { border-right: none; }
.control-group .grp-label {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-right: 2px;
}

button.ctl, .ctl {
  appearance: none;
  font-family: var(--sans);
  font-size: 12px;
  color: var(--ink);
  background: var(--panel-2);
  border: 1px solid var(--edge);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease;
}
button.ctl:hover, .ctl:hover { background: var(--edge-soft); border-color: var(--edge); }
button.ctl:active { transform: translateY(1px); }

.ctl.primary { border-color: color-mix(in srgb, var(--ok) 50%, var(--edge)); color: var(--ok); }
.ctl.danger  { border-color: color-mix(in srgb, var(--crit) 45%, var(--edge)); color: var(--crit); }
.ctl.danger:hover { background: color-mix(in srgb, var(--crit) 15%, var(--panel-2)); }
.ctl.warn    { border-color: color-mix(in srgb, var(--warn) 45%, var(--edge)); color: var(--warn); }

#speed { accent-color: var(--accent); }
#speed-value { font-family: var(--mono); color: var(--ink-dim); min-width: 2ch; display: inline-block; }

select.ctl { padding-right: 24px; }

/* ============================================================ ring-map svg internals
   (these style the elements ring-map.js emits; kept here so the map is themed in CSS) */
.rm-link-casing { fill: none; stroke: #0a0d12; stroke-width: 20; stroke-linecap: round; }
.rm-link-core   { fill: none; stroke-linecap: round; transition: stroke 0.4s ease, stroke-width 0.4s ease, opacity 0.4s ease; }
.rm-flow-line   { fill: none; opacity: 0.9; }

.rm-link-lbl-bg  { fill: rgba(10, 14, 18, 0.78); stroke: var(--edge-soft); }
.rm-link-lbl-txt { fill: var(--ink-dim); font-family: var(--mono); font-size: 15px; }

/* nodes */
.rm-node-body {
  fill: #10161d;
  stroke: var(--edge);
  stroke-width: 2;
  transition: fill 0.4s ease, stroke 0.4s ease;
}
.rm-node[data-energised="0"] .rm-node-body { fill: #0b0f14; stroke: var(--offline); }
.rm-node[data-flow="export"] .rm-node-body { fill: color-mix(in srgb, var(--accent) 22%, #10161d); stroke: color-mix(in srgb, var(--accent) 50%, var(--edge)); }
.rm-node[data-flow="import"] .rm-node-body { fill: color-mix(in srgb, var(--accent-warm) 22%, #10161d); stroke: color-mix(in srgb, var(--accent-warm) 50%, var(--edge)); }
.rm-node[data-flow="neutral"] .rm-node-body { fill: #141c24; }
.rm-node[data-flow="dark"] .rm-node-body { fill: #0b0f14; stroke: var(--offline); }

.rm-node-root .rm-node-body { stroke-width: 3; filter: url(#rm-glow); }

.rm-health-track { fill: none; stroke: #1b2530; stroke-width: 4; }
.rm-health-ring  { fill: none; stroke: var(--ok); stroke-width: 4; stroke-linecap: round; transition: stroke-dashoffset 0.5s ease, stroke 0.4s ease; }

.rm-badge-bg  { fill: var(--edge); stroke: var(--bg); stroke-width: 2; }
.rm-tier-A .rm-badge-bg { fill: var(--accent); }
.rm-badge-txt { fill: var(--ink); font-family: var(--mono); font-weight: 700; font-size: 16px; }
.rm-tier-A .rm-badge-txt { fill: #0e1218; }

.rm-node-name    { fill: var(--ink); font-size: 17px; font-weight: 600; }
.rm-node-landing { fill: var(--ink-dim); font-size: 12px; }
.rm-node-net     { fill: var(--ink-dim); font-family: var(--mono); font-size: 14px; }
.rm-node[data-flow="export"] .rm-node-net { fill: var(--accent); }
.rm-node[data-flow="import"] .rm-node-net { fill: var(--accent-warm); }
.rm-node[data-flow="dark"] .rm-node-net { fill: var(--offline); }

.rm-sf6-dot { fill: #2a3340; stroke: var(--warn); stroke-width: 1.5; }
.rm-sf6-txt { fill: var(--warn); font-family: var(--mono); font-size: 8px; font-weight: 700; }

/* whole-map treatment when the ring has physically withdrawn */
.ring-map-svg[data-state="FailSafeWithdrawal"] .rm-nodes { opacity: 0.85; }
.ring-map-svg[data-state="FailSafeWithdrawal"] { filter: saturate(0.7); }
.ring-map-svg[data-state="Restoration"] .rm-link-core { transition: stroke 0.8s ease; }

/* small screens: stack control groups, keep map bounded */
@media (max-width: 720px) {
  .control-room { padding: 8px; }
  .kpi .value { font-size: 18px; }
  .control-group { border-right: none; }
  .map-wrap { min-height: 340px; }
}