/* kilovolt: a drawing sheet. Blueprint ink for room on the grid, red pencil where it is full.
   Type: Public Sans for words (as on growpanel.io), the system monospace for labels and figures. */

:root {
  --paper: #efe9dd;
  --paper-2: #e7e0d1;
  --paper-3: #fbf8f1;
  --ink: #15203b;
  --ink-2: #3c4763;
  --ink-3: #6d7489;
  --rule: rgba(21, 32, 59, 0.16);
  --rule-2: rgba(21, 32, 59, 0.32);
  --grid-minor: rgba(36, 74, 128, 0.055);
  --grid-major: rgba(36, 74, 128, 0.1);
  --blue: #1f4fd8;
  --blue-wash: rgba(31, 79, 216, 0.09);
  --red: #d6402f;
  --sans: 'Public Sans', system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --gutter: clamp(16px, 4vw, 56px);
  --measure: 1240px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { background: var(--paper); }
body {
  margin: 0; color: var(--ink); font: 400 16px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
  --edge: max(var(--gutter), calc((100vw - var(--measure)) / 2));
}
/* Graph paper, with the major lines on the content's left edge. */
body::before {
  content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px),
    linear-gradient(var(--grid-minor) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-minor) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
  background-position: var(--edge) -1px;
}
a { color: inherit; text-decoration-color: var(--rule-2); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--blue); }
::selection { background: var(--blue); color: var(--paper-3); }

.label {
  margin: 0; font: 500 11px/1 var(--mono);
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3);
}
h1, h2 { margin: 0; font-family: var(--sans); text-wrap: balance; }
h2 { font-size: clamp(26px, 2.8vw, 36px); line-height: 1.08; font-weight: 700; letter-spacing: -0.025em; }
.lede { color: var(--ink-2); font-size: 17px; line-height: 1.5; max-width: 56ch; text-wrap: pretty; }
.fine { color: var(--ink-3); font-size: 12.5px; line-height: 1.5; max-width: 72ch; }

/* ------------------------------------------------------------------ title block */
.titleblock {
  position: sticky; top: 0; z-index: 20;
  display: grid; grid-template-columns: auto 1fr; align-items: stretch;
  width: min(var(--measure), calc(100% - 2 * var(--gutter))); margin: 0 auto;
  border: 1.5px solid var(--ink); border-top: 0; background: var(--paper-3);
}
.mark {
  display: flex; align-items: center; padding: 10px 18px; text-decoration: none;
  font: 800 18px/1 var(--sans); letter-spacing: 0.16em;
  border-right: 1.5px solid var(--ink);
}
.tb-cells { display: grid; grid-template-columns: repeat(4, auto); margin: 0; }
.tb-cells > div { padding: 7px 14px 8px; border-right: 1px solid var(--rule-2); min-width: 0; }
.tb-cells > div:last-child { border-right: 0; }
.tb-cells dt { font: 500 9.5px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.tb-cells dd { margin: 5px 0 0; font: 500 13px/1.1 var(--mono); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tb-live dd { color: var(--blue); }
.tb-live dd::before { content: ''; display: inline-block; width: 6px; height: 6px; margin-right: 7px; vertical-align: 2px; background: var(--blue); border-radius: 50%; animation: blink 1.6s steps(2, start) infinite; }
@keyframes blink { to { opacity: 0.25; } }
@media (prefers-reduced-motion: reduce) { .tb-live dd::before { animation: none; } }

/* One left edge for everything: the title block, every drawing and the footer rule. */
main > section, .colophon { width: min(var(--measure), calc(100% - 2 * var(--gutter))); margin-left: auto; margin-right: auto; }

/* ------------------------------------------------------------------ hero + queue */
.hero { display: grid; grid-template-columns: minmax(300px, 0.9fr) 1.1fr; gap: 40px 64px; padding-top: 72px; padding-bottom: 40px; align-items: start; }
h1 {
  margin-top: 18px;
  font-size: clamp(38px, 5vw, 72px); line-height: 1; font-weight: 750;
  letter-spacing: -0.04em;
}
h1 span { color: var(--blue); font-family: var(--sans); }
.hero .lede { margin-top: 24px; }

.queue { margin: 6px 0 0; padding: 18px 20px 14px; background: var(--paper-3); border: 1.5px solid var(--ink); position: relative; }
.queue::before { content: 'FIG. 1'; position: absolute; top: -9px; left: 14px; padding: 0 6px; background: var(--paper); font: 500 10px/18px var(--mono); letter-spacing: 0.1em; color: var(--ink-3); }
.queue svg { display: block; width: 100%; height: auto; overflow: visible; }
.queue .cn { font: 600 13px var(--sans); fill: var(--ink); }
.queue .gw { font: 500 11px var(--mono); fill: var(--ink-2); }
.queue .mult { font: 600 12px var(--mono); fill: var(--blue); }
.queue .mult.under { fill: var(--ink-3); }
.queue .peak { stroke: var(--red); stroke-width: 2; }
.queue .axis line { stroke: var(--rule); }
.queue .axis text { font: 10px var(--mono); fill: var(--ink-3); }
.queue .bar { fill: url(#hatch); stroke: var(--blue); stroke-width: 1; }
.queue .key text { font: 11px var(--sans); fill: var(--ink-2); }
.queue-note { font: 11.5px/1.45 var(--sans); color: var(--ink-3); margin: 10px 0 0; }

/* ------------------------------------------------------------------ atlas */
.atlas { padding-top: 56px; }
.atlas-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; padding-bottom: 16px; border-bottom: 1.5px solid var(--ink); }
.atlas-head h2 { margin-top: 10px; }
.tabs { display: flex; border: 1.5px solid var(--ink); }
.tab {
  font: 600 13px/1 var(--sans); letter-spacing: 0.02em;
  padding: 11px 16px; background: var(--paper-3); color: var(--ink-2); border: 0; cursor: pointer;
}
.tab + .tab { border-left: 1.5px solid var(--ink); }
.tab.on { background: var(--ink); color: var(--paper-3); }
.tab:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

.atlas-body { display: grid; grid-template-columns: 1fr 300px; border-bottom: 1.5px solid var(--ink); }
.map { height: min(78vh, 760px); min-height: 460px; border-right: 1.5px solid var(--ink); background: #e9e4d8; }
.atlas-notes { padding: 20px 20px 24px; background: var(--paper-3); display: flex; flex-direction: column; gap: 18px; }
.callout { margin: 0; font: 650 20px/1.25 var(--sans); letter-spacing: -0.02em; }
.callout b { color: var(--ink); font-weight: 800; background: linear-gradient(transparent 62%, rgba(214, 64, 47, 0.28) 62%); }
.callout small { display: block; margin-top: 8px; font: 400 13px/1.45 var(--sans); color: var(--ink-3); letter-spacing: 0; }
.legend { list-style: none; margin: 0; padding: 14px 0 0; border-top: 1px solid var(--rule-2); display: grid; gap: 9px; font-size: 13px; color: var(--ink-2); }
.legend li { display: grid; grid-template-columns: 24px 1fr; gap: 10px; align-items: center; }
.legend svg { width: 24px; height: 24px; }
.lg-room { fill: var(--blue-wash); stroke: var(--blue); stroke-width: 1.4; }
.lg-tight { fill: var(--blue); }
.lg-full { stroke: var(--red); stroke-width: 2.2; fill: none; }
.jump { display: flex; flex-wrap: wrap; gap: 6px; }
.jump button {
  font: 500 11px/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink);
  background: transparent; border: 1px solid var(--rule-2); padding: 7px 9px; cursor: pointer;
}
.jump button:hover, .jump button:focus-visible { border-color: var(--ink); background: var(--paper); outline: none; }

/* map chrome */
.maplibregl-ctrl-group { border-radius: 0; border: 1.5px solid var(--ink); box-shadow: none; background: var(--paper-3); }
.maplibregl-ctrl-group button + button { border-top: 1px solid var(--rule-2); }
.maplibregl-ctrl-attrib { background: rgba(239, 233, 221, 0.85) !important; font: 10px var(--sans); }
.maplibregl-popup-content {
  border-radius: 0; background: var(--paper-3); border: 1.5px solid var(--ink); box-shadow: 6px 6px 0 rgba(21, 32, 59, 0.12);
  padding: 12px 14px 12px; font: 13px/1.4 var(--sans); color: var(--ink); min-width: 240px;
}
.maplibregl-popup-tip { display: none; }
.maplibregl-popup-close-button { font-size: 18px; color: var(--ink-3); padding: 2px 7px; }
.tag .ref { font: 500 10px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
.tag h3 { margin: 6px 0 2px; font: 700 16px/1.2 var(--sans); letter-spacing: -0.01em; }
.tag .op { color: var(--ink-3); font-size: 12px; }
.tag table { width: 100%; border-collapse: collapse; margin-top: 10px; font: 500 12px var(--mono); }
.tag th { text-align: left; font: 400 12px var(--sans); color: var(--ink-2); padding: 5px 8px 5px 0; border-top: 1px solid var(--rule); }
.tag td { text-align: right; padding: 5px 0; border-top: 1px solid var(--rule); white-space: nowrap; }
.tag td.full { color: var(--red); }
.tag td.room { color: var(--blue); }
.tag .note { margin: 8px 0 0; font-size: 11.5px; color: var(--ink-3); }

/* ------------------------------------------------------------------ country sheets */
.sheets { padding-top: 80px; }
.sheets header h2 { margin-top: 10px; }
.sheet-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 24px; border: 1.5px solid var(--ink); background: var(--paper-3); }
.sheet { padding: 18px 18px 20px; border-right: 1px solid var(--rule-2); }
.sheet:last-child { border-right: 0; }
.sheet h3 { margin: 0; font: 700 20px/1.1 var(--sans); letter-spacing: -0.02em; }
.sheet .src { margin: 6px 0 14px; font-size: 12px; line-height: 1.5; color: var(--ink-3); min-height: 4.5em; }
.sheet .big { font: 750 40px/1 var(--sans); letter-spacing: -0.04em; color: var(--ink); font-variant-numeric: tabular-nums; }
.sheet .big::before { content: ''; display: inline-block; width: 12px; height: 12px; margin-right: 10px; vertical-align: 6px; background: var(--red); }
.sheet .big-label { font-size: 13px; color: var(--ink-2); margin: 6px 0 14px; }
.sheet .split { display: grid; gap: 8px; }
.sheet .split div { font: 500 11px var(--mono); color: var(--ink-3); }
.sheet .bar { display: flex; height: 10px; margin-top: 4px; border: 1px solid var(--ink); }
.sheet .bar i { display: block; height: 100%; }
.sheet .bar .full { background: var(--red); }
.sheet .bar .tight { background: repeating-linear-gradient(135deg, var(--blue) 0 2px, transparent 2px 5px); }
.sheet .bar .room { background: var(--blue-wash); }
.sheets-note { margin-top: 14px; }
.sheet-key { display: flex; flex-wrap: wrap; gap: 6px 22px; margin: 12px 0 0; font: 500 11px var(--mono); color: var(--ink-2); }
.sheet-key i { display: inline-block; width: 18px; height: 10px; margin-right: 7px; vertical-align: -1px; border: 1px solid var(--ink); }
.sheet-key .full { background: var(--red); }
.sheet-key .tight { background: repeating-linear-gradient(135deg, var(--blue) 0 2px, transparent 2px 5px); }
.sheet-key .room { background: var(--blue-wash); }
.sheet-key .warn { flex-basis: 100%; font: 400 12.5px var(--sans); color: var(--ink-3); }

/* ------------------------------------------------------------------ curtailment */
.curtail { padding-top: 88px; }
.curtail header h2 { margin-top: 10px; max-width: 22ch; }
.curtail .lede { margin-top: 14px; }
.curtail-figure { margin: 26px 0 0; display: grid; grid-template-columns: 1.15fr 1fr; border: 1.5px solid var(--ink); background: var(--paper-3); }
.curtail-figure svg { width: 100%; height: auto; display: block; border-right: 1.5px solid var(--ink); }
.curtail-figure .land { fill: var(--paper); stroke: var(--ink); stroke-width: 0.8; }
.curtail-figure .other { fill: #e3ddcf; stroke: var(--rule-2); stroke-width: 0.6; }
.curtail-figure .node { fill: rgba(214, 64, 47, 0.12); stroke: var(--red); stroke-width: 1.2; }
.curtail-figure .node.hot { fill: rgba(214, 64, 47, 0.28); }
.curtail-figure .lbl { font: 600 10.5px var(--sans); fill: var(--ink); }
.curtail-figure .lbl-v { font: 500 9.5px var(--mono); fill: var(--red); }
.curtail-list { list-style: none; margin: 0; padding: 14px 18px; counter-reset: r; font-size: 13px; }
.curtail-list li { counter-increment: r; display: grid; grid-template-columns: 24px 1fr auto; gap: 2px 10px; padding: 8px 0; border-bottom: 1px solid var(--rule); align-items: baseline; }
.curtail-list li::before { content: counter(r, decimal-leading-zero); font: 500 11px var(--mono); color: var(--ink-3); }
.curtail-list .nm { font-weight: 600; }
.curtail-list .v { font: 500 12px var(--mono); color: var(--red); text-align: right; }
.curtail-list .share { grid-column: 2 / -1; height: 5px; background: var(--paper-2); position: relative; }
.curtail-list .share i { position: absolute; inset: 0 auto 0 0; background: var(--red); }
.curtail-list .nm small, .curtail-list .v small { font: 500 11px var(--mono); color: var(--ink-3); }
.curtail-list li.head { counter-increment: none; border-bottom: 1px solid var(--rule-2); padding-top: 0; font: 500 10px/1.3 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
.curtail-list li.head::before { content: ''; }
.curtail-list li.head span:last-child { text-align: right; }

/* ------------------------------------------------------------------ seismograph */
.seismo { padding-top: 88px; }
.seismo header h2 { margin-top: 10px; }
.seismo .lede { margin-top: 14px; }
.trace { margin: 26px 0 0; background: var(--paper-3); border: 1.5px solid var(--ink); padding: 14px 16px 8px; position: relative; }
.trace::before { content: 'TRACE · LAST 60 MIN · 1 S'; position: absolute; top: -9px; left: 14px; padding: 0 6px; background: var(--paper); font: 500 10px/18px var(--mono); letter-spacing: 0.1em; color: var(--ink-3); }
.trace svg, .daystrip svg { display: block; width: 100%; height: auto; overflow: visible; }
.trace .band { fill: var(--blue-wash); }
.trace .band-l { font: 500 10.5px var(--mono); fill: var(--blue); }
.trace .grid line, .daystrip .grid line { stroke: var(--rule); }
.trace .grid line.zero { stroke: var(--rule-2); }
.trace .grid text, .daystrip .grid text { font: 10px var(--mono); fill: var(--ink-3); }
.trace .ink { fill: none; stroke: var(--ink); stroke-width: 1; stroke-linejoin: round; }
.trace .ev { fill: none; stroke: var(--red); stroke-width: 1.3; }
.trace .ev-l { font: 500 10px var(--mono); fill: var(--red); }
.trace .empty { font: italic 14px var(--sans); fill: var(--ink-3); }
.seismo-foot { display: grid; grid-template-columns: 1.6fr 1fr; gap: 0; border: 1.5px solid var(--ink); border-top: 0; background: var(--paper-3); }
.daystrip { margin: 0; padding: 14px 16px; border-right: 1.5px solid var(--ink); }
.daystrip[hidden] { display: none; }
.seismo-foot:has(.daystrip[hidden]) { grid-template-columns: 1fr; }
.daystrip .range { fill: rgba(21, 32, 59, 0.22); }
.daystrip .mean { fill: none; stroke: var(--ink); stroke-width: 0.8; }
.events { padding: 14px 18px; }
.events h3 { margin: 0 0 8px; font: 500 10.5px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.events ol { list-style: none; margin: 0; padding: 0; font-size: 13px; }
.events li { display: grid; grid-template-columns: auto 1fr; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--rule); }
.events time { font: 500 11.5px var(--mono); color: var(--ink-3); }
.events li b { color: var(--red); font-weight: 600; }
.events .none { color: var(--ink-3); font-style: italic; }

/* ------------------------------------------------------------------ colophon */
.colophon { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; padding-top: 72px; padding-bottom: 72px; margin-top: 88px; border-top: 1.5px solid var(--ink); font-size: 13px; color: var(--ink-2); }
.colophon h3 { margin: 0 0 10px; font: 500 10.5px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.colophon p { margin: 0; }
.sources { list-style: none; margin: 0; padding: 0; }
.sources li { padding: 4px 0; border-bottom: 1px dotted var(--rule-2); }

/* ------------------------------------------------------------------ small screens */
@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; padding-top: 44px; }
  .atlas-body { grid-template-columns: 1fr; }
  .map { border-right: 0; border-bottom: 1.5px solid var(--ink); height: 62vh; min-height: 380px; }
  .sheet-grid { grid-template-columns: repeat(2, 1fr); }
  .sheet:nth-child(2) { border-right: 0; }
  .sheet:nth-child(-n + 2) { border-bottom: 1px solid var(--rule-2); }
  .curtail-figure { grid-template-columns: 1fr; }
  .curtail-figure svg { border-right: 0; border-bottom: 1.5px solid var(--ink); }
  .seismo-foot { grid-template-columns: 1fr; }
  .daystrip { border-right: 0; border-bottom: 1.5px solid var(--ink); }
  .colophon { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 640px) {
  .titleblock { margin: 0; border-left: 0; border-right: 0; }
  .tb-cells { grid-template-columns: repeat(2, auto); }
  .tb-cells > div:nth-child(2), .tb-cells > div:nth-child(3) { display: none; }
  .mark { font-size: 15px; padding: 10px 12px; }
  .sheet-grid { grid-template-columns: 1fr; }
  .sheet { border-right: 0; border-bottom: 1px solid var(--rule-2); }
  .tabs { width: 100%; }
  .tab { flex: 1; }
  .jump { flex-wrap: nowrap; gap: 4px; }
  .jump button { padding: 7px 6px; font-size: 10px; letter-spacing: 0.03em; flex: 1; }
}

/* "Use ⌘ + scroll to zoom" overlay, in the drawing's ink */
.maplibregl-cooperative-gesture-screen { background: rgba(239, 233, 221, 0.78); color: var(--ink); font: 650 17px/1.4 var(--sans); padding: 24px; }