/* ================================ DC Lab ================================ */
:root {
  --bg: #0a0e14;
  --bg-1: #0f141c;
  --bg-2: #151c26;
  --bg-3: #1c2532;
  --line: #232d3b;
  --text: #e6edf3;
  --text-2: #9fb0c0;
  --text-3: #617080;
  --accent: #22d3ee;
  --accent-2: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --radius: 12px;
  --header-h: 56px;
  font-size: 15px;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, sans-serif;
  overflow: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: "JetBrains Mono", monospace; }

/* ------------------------------- header ------------------------------- */
#topbar {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 20px;
  background: rgba(10, 14, 20, 0.92);
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 1200;
}
.brand { display: flex; align-items: baseline; gap: 8px; }
.bolt { font-size: 20px; }
.brand-name {
  font-family: "Inter Tight", sans-serif;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.2px;
}
.brand-sub { color: var(--text-3); font-size: 12px; }

#nav { display: flex; gap: 4px; flex: 1; }
#nav a {
  padding: 7px 14px;
  border-radius: 8px;
  color: var(--text-2);
  font-weight: 500;
  font-size: 14px;
}
#nav a:hover { color: var(--text); background: var(--bg-2); text-decoration: none; }
#nav a.active { color: var(--accent); background: rgba(34, 211, 238, 0.1); }

.status { display: flex; align-items: center; gap: 8px; color: var(--text-2); font-size: 13px; }
.status a { cursor: help; }

/* -------------------------------- views -------------------------------- */
main { height: calc(100% - var(--header-h)); position: relative; }
.view { display: none; height: 100%; position: relative; }
.view.active { display: block; }

.page-head h1 {
  font-family: "Inter Tight", sans-serif;
  font-size: 26px;
  margin: 0 0 6px;
}
.page-head p { color: var(--text-2); margin: 0 0 20px; max-width: 760px; line-height: 1.55; }

.leaflet-container { font: inherit; }

.map-attrib {
  position: absolute; bottom: 0; right: 0; z-index: 1000;
  background: rgba(10, 14, 20, 0.8);
  padding: 4px 10px; border-top-left-radius: 8px;
  font-size: 10px; color: var(--text-3);
  max-width: 75%;
}
.map-attrib a { color: var(--text-2); }

.seg {
  display: inline-flex; gap: 2px;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 3px;
}
.seg button {
  border: none; background: transparent; color: var(--text-2);
  font: inherit; font-size: 12.5px; padding: 6px 12px;
  border-radius: 8px; cursor: pointer; white-space: nowrap;
}
.seg button.active { background: var(--accent); color: #03242b; font-weight: 600; }
.seg button:not(.active):hover { color: var(--text); }

.btn-primary {
  background: var(--accent); color: #03242b;
  border: none; border-radius: 8px;
  font: inherit; font-weight: 600; font-size: 14px;
  padding: 9px 18px; cursor: pointer;
}
.btn-primary:hover { filter: brightness(1.1); }

.loading {
  color: var(--text-3); font-size: 13px; padding: 14px 0;
  animation: blink 1.2s infinite;
}
@keyframes blink { 50% { opacity: 0.45; } }
.err { color: var(--bad); font-size: 13px; padding: 10px 0; }
.hidden { display: none !important; }

/* --------------------------- shared facility block ---------------------- */
.fac-block {
  border: 1px dashed var(--line); border-radius: var(--radius);
  background: var(--bg-2);
  padding: 12px 14px;
  display: flex; flex-direction: column; gap: 12px;
}
.fac-title {
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.7px;
  text-transform: uppercase; color: var(--text-3);
}
/* the shared tech picker wears each lab's accent */
.noise-panel .wl-tech button.active { border-color: var(--noise); background: rgba(252, 165, 10, 0.08); }
.noise-panel .wl-tech button.active .wl-tech-name { color: var(--noise); }

/* ------------------------------- noise lab ----------------------------- */
:root { --noise: #fca50a; }

.noise-layout { display: grid; grid-template-columns: minmax(0, 1fr) 440px; height: 100%; }
.noise-map-wrap { position: relative; }
#noise-map {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 30%, #0e1622 0%, var(--bg) 75%);
  outline: none;
}
.nz-plume { mix-blend-mode: screen; }  /* the plume glows over the dark basemap */

.noise-panel {
  border-left: 1px solid var(--line);
  background: var(--bg-1);
  overflow-y: auto;
  padding: 26px 28px 50px;
  display: flex; flex-direction: column; gap: 18px;
}
.noise-panel .page-head h1 { color: var(--noise); }
.noise-panel .page-head p { margin-bottom: 0; }

.nz-site { font-size: 12px; color: var(--text-2); }

.nz-controls { display: flex; flex-direction: column; gap: 14px; }
.nz-field, .nz-slider { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--text-2); }
.nz-slider output { float: right; color: var(--noise); font-size: 13px; font-weight: 600; }
.nz-slider { display: block; }
.nz-slider input[type="range"] { width: 100%; accent-color: var(--noise); display: block; margin-top: 6px; }
.nz-field select {
  background: var(--bg-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 8px 10px; font: inherit; font-size: 13px;
}
#nz-cooling { display: flex; }
#nz-cooling button { flex: 1; padding: 7px 6px; font-size: 12px; }
#nz-cooling button.active { background: var(--noise); color: #2b1802; }
#nz-metric button.active, #nz-met button.active { background: var(--noise); color: #2b1802; }
.nz-toggles { display: flex; flex-direction: column; gap: 8px; font-size: 13px; color: var(--text-2); }
.nz-toggles input { accent-color: var(--noise); margin-right: 6px; }
.nz-dim { color: var(--text-3); font-size: 11.5px; }
.nz-met { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.nz-kpi {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--bg-2); padding: 14px 18px;
}
.nz-kpi-big { display: flex; align-items: baseline; gap: 10px; }
.nz-kpi-big .num { font-family: "JetBrains Mono", monospace; font-size: 38px; font-weight: 600; color: var(--noise); }
.nz-kpi-big .unit { color: var(--text-3); font-size: 12.5px; }
.nz-kpi-sub { color: var(--text-2); font-size: 12px; margin-top: 2px; }

.nz-block h3 { font-size: 13.5px; margin: 0 0 8px; color: var(--text); }
.nz-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.nz-table td { padding: 6px 8px 6px 0; border-top: 1px solid var(--line); color: var(--text-2); }
.nz-table tr:first-child td { border-top: none; }
.nz-db { font-weight: 600; width: 42px; }
.nz-note { color: var(--text-3); font-size: 11.5px; }
.nz-chart { height: 190px; }
.nz-block .nz-dim { display: block; margin: 6px 0 0; line-height: 1.45; }

.nz-edit { border: 1px solid var(--line); border-radius: 10px; background: var(--bg-2); }
.nz-edit summary { cursor: pointer; padding: 10px 12px; font-size: 12.5px; color: var(--text-2); list-style: none; }
.nz-edit summary::before { content: "▸ "; color: var(--noise); }
.nz-edit[open] summary::before { content: "▾ "; }
.nz-edit > *:not(summary) { margin: 0 12px 10px; }
.nz-src-row {
  display: grid; grid-template-columns: 1fr auto auto; gap: 8px; align-items: center;
  font-size: 11.5px; color: var(--text-2); padding: 3px 0;
}
.nz-src-row label { display: flex; align-items: center; gap: 5px; color: var(--text-3); }
.nz-src-row input {
  width: 58px; background: var(--bg-1); color: var(--text);
  border: 1px solid var(--line); border-radius: 6px;
  padding: 4px 6px; font: inherit; font-family: "JetBrains Mono", monospace; font-size: 11.5px;
}
.nz-src-label { line-height: 1.25; }

.nz-share { align-self: flex-start; background: var(--noise); color: #2b1802; }
.nz-meta { font-size: 10.5px; color: var(--text-3); line-height: 1.5; }

.nz-about { border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-1); }
.nz-about summary {
  cursor: pointer; padding: 13px 16px; font-size: 13px; font-weight: 600; color: var(--text-2);
  list-style: none;
}
.nz-about summary::before { content: "▸ "; color: var(--noise); }
.nz-about[open] summary::before { content: "▾ "; }
.nz-about h4 { margin: 14px 16px 6px; font-size: 12.5px; color: var(--noise); }
.nz-about p { margin: 0 16px 12px; font-size: 12px; color: var(--text-2); line-height: 1.55; }

/* live cursor readout */
.nz-hover {
  position: absolute; z-index: 1200; pointer-events: none;
  background: rgba(21, 28, 38, 0.94);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 7px 11px; font-size: 12.5px; color: var(--text);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
  white-space: nowrap;
}
.nz-hover b { color: var(--noise); font-size: 14px; }
.nz-hover-dist { display: block; color: var(--text-3); font-size: 10.5px; }

/* dB legend with everyday-sound anchors */
.nz-legend {
  position: absolute; bottom: 44px; left: 16px; z-index: 1000;
  background: rgba(21, 28, 38, 0.92);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; font-size: 11px; color: var(--text-2);
}
.nz-legend-title { font-weight: 600; color: var(--text); margin-bottom: 8px; font-size: 12px; }
.nz-legend-body { display: flex; gap: 10px; }
.nz-legend-bar { width: 10px; height: 170px; border-radius: 5px; }
.nz-legend-marks { position: relative; height: 170px; width: 140px; }
.nz-legend-mark { position: absolute; transform: translateY(50%); white-space: nowrap; }
.nz-legend-mark .mono { color: var(--text); font-weight: 600; margin-right: 5px; }

/* the data center marker: a building with radiating rings */
.nz-dc-icon { position: relative; }
.nz-core {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 22px; filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.7));
  cursor: grab;
}
.nz-ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid var(--noise);
  animation: nz-pulse 2.6s ease-out infinite;
}
.nz-ring-2 { animation-delay: 1.3s; }
@keyframes nz-pulse {
  0% { transform: scale(0.4); opacity: 0.9; }
  100% { transform: scale(1.9); opacity: 0; }
}

/* ------------------------------- water lab ----------------------------- */
:root { --water: #38bdf8; }

.water-layout { display: grid; grid-template-columns: minmax(0, 1fr) 460px; height: 100%; }
.water-map-wrap { position: relative; }
#water-map {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 30%, #0e1622 0%, var(--bg) 75%);
  outline: none;
}

.water-panel {
  border-left: 1px solid var(--line);
  background: var(--bg-1);
  overflow-y: auto;
  padding: 26px 28px 50px;
  display: flex; flex-direction: column; gap: 18px;
}
.water-panel .page-head h1 { color: var(--water); }
.water-panel .page-head p { margin-bottom: 0; }

.wl-controls { display: flex; flex-direction: column; gap: 14px; }
.wl-slider output { color: var(--water); }
.wl-slider input[type="range"] { accent-color: var(--water); }

.wl-tech { display: flex; flex-direction: column; gap: 6px; margin-top: 6px; }
.wl-tech button {
  display: flex; flex-direction: column; gap: 2px; text-align: left;
  background: var(--bg-2); color: var(--text-2);
  border: 1px solid var(--line); border-radius: 10px;
  font: inherit; padding: 8px 12px; cursor: pointer;
}
.wl-tech button:hover { border-color: var(--text-3); }
.wl-tech button.active { border-color: var(--water); background: rgba(56, 189, 248, 0.08); }
.wl-tech-name { font-size: 12.5px; font-weight: 600; color: var(--text); }
.wl-tech button.active .wl-tech-name { color: var(--water); }
.wl-tech-blurb { font-size: 10.5px; color: var(--text-3); line-height: 1.4; }

.wl-toggle { font-size: 13px; color: var(--text-2); }
.wl-toggle input { accent-color: var(--water); margin-right: 6px; }
.wl-toggle .nz-dim { display: block; margin-left: 22px; }
.wl-edit summary::before { color: var(--water); }
.wl-grid-edit { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-2); }
.wl-grid-edit input {
  width: 76px; background: var(--bg-1); color: var(--text);
  border: 1px solid var(--line); border-radius: 6px;
  padding: 4px 6px; font-family: "JetBrains Mono", monospace; font-size: 11.5px;
}
.wl-share { align-self: flex-start; background: var(--water); color: #082436; }
.wl-loading { color: var(--text-3); font-size: 13px; animation: blink 1.2s infinite; }

#wl-body { display: flex; flex-direction: column; gap: 18px; }
#wl-body[hidden] { display: none; }
.wl-kpi .num { color: var(--water); }
.wl-minis { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.wl-mini {
  display: flex; flex-direction: column; gap: 2px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg-2); padding: 10px 12px;
}
.wl-mini-val { font-size: 19px; font-weight: 600; color: var(--text); }
.wl-mini-label { font-size: 10.5px; color: var(--text-3); }
.wl-climate { line-height: 1.5; }

.wl-persp-ico { width: 26px; font-size: 15px; }
.wl-persp-val { font-weight: 600; white-space: nowrap; }

.wl-chart { height: 205px; }
.wl-chart-tall { height: 225px; }

.wl-stress-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; }
.wl-wei-val { font-size: 30px; font-weight: 600; }
.wl-wei-band { font-size: 12px; font-weight: 600; }
.wl-scale-bar {
  position: relative; display: flex; height: 10px; border-radius: 5px; overflow: hidden;
}
.wl-scale-bar i {
  position: absolute; top: -2px; bottom: -2px; width: 2.5px;
  background: var(--text); border-radius: 2px; transform: translateX(-50%);
}
.wl-scale-marks { display: flex; justify-content: space-between; font-size: 9.5px; color: var(--text-3); margin-top: 3px; }
.wl-sparkline { height: 56px; margin: 10px 0 4px; }
.wl-stress-text { font-size: 12.5px; color: var(--text-2); line-height: 1.55; }
.wl-stress-text p { margin: 0 0 8px; }
.wl-stress-text b { color: var(--text); }
.wl-fine { font-size: 11px; color: var(--text-3); line-height: 1.5; }
.wl-fine b { color: var(--text-2); }

.wl-impact { border-top: 1px solid var(--line); margin-top: 12px; padding-top: 12px; }
.wl-impact .fac-title { margin-bottom: 8px; color: var(--water); }
.wl-impact-row { font-size: 12.5px; color: var(--text-2); line-height: 1.55; margin: 0 0 10px; }
.wl-impact-row b { color: var(--text); }
.wl-impact-slider { margin-bottom: 10px; }

.wl-about-box summary::before { color: var(--water); }
.wl-about h4 { margin: 14px 16px 6px; font-size: 12.5px; color: var(--water); }
.wl-about p { margin: 0 16px 12px; font-size: 12px; color: var(--text-2); line-height: 1.55; }
.wl-mix-table {
  margin: 0 16px 12px; border-collapse: collapse; font-size: 11.5px; color: var(--text-2);
}
.wl-mix-table th { text-align: left; color: var(--text-3); font-weight: 500; padding: 3px 16px 3px 0; }
.wl-mix-table td { padding: 3px 16px 3px 0; border-top: 1px solid var(--line); }

/* WEI+ stress legend, bottom-left like the noise legend */
.wl-legend {
  position: absolute; bottom: 44px; left: 16px; z-index: 1000;
  background: rgba(21, 28, 38, 0.92);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; font-size: 11px; color: var(--text-2);
}
.wl-legend-title { font-weight: 600; color: var(--text); margin-bottom: 8px; font-size: 12px; }
.wl-legend-row { display: flex; align-items: center; gap: 7px; padding: 2px 0; }
.wl-legend-swatch { width: 14px; height: 10px; border-radius: 3px; }
.wl-legend .mono { color: var(--text); }

/* the site marker: a droplet with radiating rings */
.wl-dc-icon { position: relative; }
.wl-core {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 22px; filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.7));
  cursor: grab;
}
.wl-ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid var(--water);
  animation: nz-pulse 2.6s ease-out infinite;
}
.wl-ring-2 { animation-delay: 1.3s; }

/* ------------------------------ responsive ----------------------------- */
@media (max-width: 1100px) {
  .noise-layout { grid-template-columns: 1fr; grid-template-rows: 48% 52%; }
  .noise-panel { border-left: none; border-top: 1px solid var(--line); }
  .nz-legend { display: none; }
  .water-layout { grid-template-columns: 1fr; grid-template-rows: 48% 52%; }
  .water-panel { border-left: none; border-top: 1px solid var(--line); }
  .wl-legend { display: none; }
  .brand-sub { display: none; }
}

/* scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 5px; }

/* ------------------------------ PDF report ----------------------------- */
.btn-ghost {
  background: transparent; color: var(--text-2);
  border: 1px solid var(--line); border-radius: 8px;
  font: inherit; font-size: 12.5px; padding: 6px 12px; cursor: pointer;
  white-space: nowrap;
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-3); }

.report-overlay {
  position: fixed; inset: 0; z-index: 3000;
  display: flex; align-items: center; justify-content: center;
  background: rgba(10, 14, 20, 0.86); backdrop-filter: blur(3px);
  color: var(--text); font-size: 15px; text-align: center; padding: 24px;
  animation: blink 1.4s infinite;
}
.report-overlay[hidden] { display: none; }

/* The report document: hidden on screen, the only thing on paper.
   Light theme by CSS-variable override — every table/note style follows. */
#print-report { display: none; }

@media print {
  html, body { height: auto; overflow: visible; background: #fff; }
  #topbar, main, .report-overlay { display: none !important; }
  #print-report {
    display: block;
    --text: #111318; --text-2: #333a44; --text-3: #5c6672;
    --line: #c9cfd6; --bg-1: #fff; --bg-2: #f3f5f7; --bg-3: #e8ebee;
    color: var(--text);
    font-size: 11.5px; line-height: 1.5;
  }
  .pr-head { border-bottom: 2px solid #111; padding-bottom: 10px; margin-bottom: 18px; }
  .pr-kicker {
    font-family: "JetBrains Mono", monospace; font-size: 10px;
    letter-spacing: 1.6px; color: #0369a1;
  }
  .pr-head h1 { font-family: "Inter Tight", sans-serif; font-size: 24px; margin: 4px 0 4px; }
  .pr-meta { color: var(--text-3); font-size: 10.5px; }

  .pr-section { margin-bottom: 22px; }
  .pr-break { break-before: page; }
  .pr-section h2 {
    font-size: 15px; margin: 0 0 10px; padding-bottom: 4px;
    border-bottom: 1px solid var(--line); color: #0369a1;
  }
  .pr-section h3 { font-size: 11.5px; margin: 10px 0 5px; color: var(--text); }

  .pr-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
  .pr-big { font-family: "JetBrains Mono", monospace; font-size: 26px; font-weight: 600; }
  .pr-big span { font-family: Inter, sans-serif; font-size: 11px; font-weight: 400; color: var(--text-3); }
  .pr-wei { font-size: 18px; }
  .pr-sub { color: var(--text-2); font-size: 10.5px; margin: 3px 0 8px; }
  .pr-minirow { font-size: 12px; margin: 4px 0 8px; }

  .pr-settings { border-collapse: collapse; font-size: 10px; margin-top: 6px; width: 100%; }
  .pr-settings td { padding: 2.5px 8px 2.5px 0; border-top: 1px solid var(--bg-3); vertical-align: top; }
  .pr-settings .pr-k { color: var(--text-3); width: 145px; }

  #print-report .nz-table { font-size: 10.5px; width: 100%; }
  #print-report .nz-table td { padding: 3.5px 8px 3.5px 0; }
  .pr-half { max-width: 60%; }

  #print-report figure { margin: 12px 0 0; break-inside: avoid; }
  #print-report figure img { width: 100%; border-radius: 8px; }
  .pr-map { margin-top: 10px; }
  .pr-map img { max-height: 250px; object-fit: cover; }
  #print-report figcaption { font-size: 9.5px; color: var(--text-3); margin-top: 4px; line-height: 1.45; }
  .pr-spark img { max-height: 70px; object-fit: cover; }

  .pr-method { font-size: 10px; color: var(--text-2); border-left: 2px solid var(--line); padding-left: 9px; }
  .pr-fine { font-size: 9.5px; color: var(--text-3); }
  .pr-refs { font-size: 9.5px; color: var(--text-2); padding-left: 16px; }
  .pr-refs li { margin-bottom: 3px; }
  .pr-url { font-family: "JetBrains Mono", monospace; font-size: 9px; color: #0369a1; }

  /* inline accent colors set by the app read fine on white, but the water
     accent is too pale — darken it */
  #print-report [style*="color:#38bdf8"], #print-report [style*="color: #38bdf8"] { color: #0369a1 !important; }
  #print-report b { color: var(--text); }
  @page { margin: 14mm 13mm; }
}