/* ─── Variables ────────────────────────────────────────── */
:root {
  --bg-0: #060912;
  --bg-1: #0a0e1a;
  --bg-2: #11172a;
  --bg-3: #1a2238;
  --line: rgba(255, 255, 255, 0.07);
  --line-strong: rgba(255, 255, 255, 0.14);
  --fg-0: #e6edff;
  --fg-1: #aab3cc;
  --fg-2: #6b7691;
  --accent-blue: #4f8cff;
  --accent-cyan: #2bd9d4;
  --accent-green: #5dffa6;
  --accent-amber: #ffb74d;
  --accent-pink: #ff5fa2;
  --accent-purple: #b86dff;
  --danger: #ff6b6b;
  --shadow: 0 14px 40px -16px rgba(0, 0, 0, 0.5);
  font-feature-settings: "tnum", "ss02";
}

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

body {
  background: radial-gradient(1100px 700px at 12% -5%, #18203b 0%, transparent 55%),
              radial-gradient(900px 600px at 95% 6%, #1a1538 0%, transparent 60%),
              var(--bg-0);
  color: var(--fg-0);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter",
               "Segoe UI", system-ui, sans-serif;
  font-size: 14.5px;
  line-height: 1.45;
  min-height: 100vh;
  overflow-x: hidden;
}

#bg-grid {
  position: fixed; inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px),
                    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 80%);
  pointer-events: none;
  z-index: 0;
  opacity: .35;
}

/* ─── Layout ───────────────────────────────────────────── */
header, nav, main, footer { position: relative; z-index: 1; }

header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 28px 8px;
  gap: 12px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: 600;
  box-shadow: 0 6px 30px -8px var(--accent-blue);
}
header h1 { margin: 0; font-size: 20px; letter-spacing: -.01em; }
.header-right { display: flex; align-items: center; gap: 14px; }
#refresh-btn {
  background: var(--bg-2); border: 1px solid var(--line);
  color: var(--fg-1); width: 36px; height: 36px; border-radius: 10px;
  font-size: 18px; cursor: pointer; transition: all .15s;
}
#refresh-btn:hover { color: var(--fg-0); border-color: var(--accent-blue); }
#refresh-btn.spinning { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.tabs {
  padding: 0 28px;
  display: flex; gap: 4px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  background: none; border: none; color: var(--fg-2);
  padding: 10px 18px;
  font-size: 13.5px; font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all .15s; letter-spacing: .02em;
  white-space: nowrap;
  flex: 0 0 auto;
}
.tab:hover { color: var(--fg-0); }
.tab.active {
  color: var(--fg-0);
  border-bottom-color: var(--accent-blue);
}

main {
  padding: 0 28px 60px;
  max-width: 1500px; margin: 0 auto;
}
@media (max-width: 700px) {
  header { padding: 16px 16px 6px; }
  header h1 { font-size: 18px; }
  .tabs   { padding: 0 16px; }
  main    { padding: 0 16px 60px; }
  .hero-card { padding: 16px 16px 12px; }
  .big       { font-size: 28px; }
  .panel-body.chart-wrap { height: 220px; }
  .daily-cost-summary { gap: 18px; }
  .daily-cost-summary b { font-size: 20px; }
}
.pane { display: none; }
.pane.active { display: block; animation: fadein .25s ease; }
@keyframes fadein {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

footer {
  text-align: center; padding: 30px 16px 18px;
  border-top: 1px solid var(--line);
  margin-top: 36px;
}
footer code {
  background: var(--bg-2); padding: 2px 6px; border-radius: 4px;
  font-size: 11px; color: var(--fg-1);
}

/* ─── Hero cards ───────────────────────────────────────── */
.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px; margin-bottom: 22px;
}
.hero-card {
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg-1) 100%);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 20px 14px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .2s, border-color .2s;
}
.hero-card:hover { transform: translateY(-2px); border-color: var(--line-strong); }

.hero-card::before {
  content: "";
  position: absolute; inset: -1px -1px 70% -1px;
  border-radius: 16px 16px 50% 50%/ 16px 16px 100% 100%;
  background: var(--glow-color, var(--accent-blue));
  filter: blur(40px);
  opacity: .14;
  pointer-events: none;
}
.glow-blue { --glow-color: var(--accent-blue); }
.glow-cyan { --glow-color: var(--accent-cyan); }
.glow-green { --glow-color: var(--accent-green); }
.glow-amber { --glow-color: var(--accent-amber); }
.glow-pink  { --glow-color: var(--accent-pink); }

.card-head {
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 600;
  color: var(--fg-1); letter-spacing: .04em;
  text-transform: uppercase;
}
.card-icon { font-size: 16px; }

.big {
  font-size: 32px; font-weight: 600; letter-spacing: -.02em;
  margin: 8px 0 2px;
  color: var(--fg-0);
  font-variant-numeric: tabular-nums;
}
.big .muted { font-size: 14px; font-weight: 400; }

.hero-sub {
  display: flex; gap: 14px; margin: 12px 0 8px;
  font-size: 13px;
}
.hero-sub > div { flex: 1; }
.hero-sub b { font-size: 14.5px; color: var(--fg-0); font-variant-numeric: tabular-nums; }

.hero-card canvas { width: 100% !important; height: 40px !important; }

/* breakdown bar inside the cost-of-living hero card */
.hero-breakdown {
  margin-top: 10px;
  display: flex;
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-3);
}
.hero-breakdown > span {
  position: relative;
  transition: filter .15s;
}
.hero-breakdown > span:hover { filter: brightness(1.4); }
.hero-breakdown > span::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translate(-50%, -4px);
  background: var(--bg-3);
  border: 1px solid var(--line-strong);
  color: var(--fg-0);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity .15s;
  z-index: 2;
}
.hero-breakdown > span:hover::after { opacity: 1; }

.alert {
  margin-top: 8px; padding: 8px 10px; font-size: 12px;
  background: rgba(255,107,107,.1);
  border: 1px solid rgba(255,107,107,.3);
  border-radius: 8px; color: #ffb4b4;
}
.alert.hidden { display: none; }

/* ─── Info grid panels ─────────────────────────────────── */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.panel {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.panel.wide { grid-column: span 2; }
@media (max-width: 700px) { .panel.wide { grid-column: span 1; } }

.panel-head {
  padding: 12px 16px;
  font-size: 12.5px; font-weight: 600;
  color: var(--fg-1);
  border-bottom: 1px solid var(--line);
  letter-spacing: .03em;
  text-transform: uppercase;
}
.panel-body {
  padding: 14px 16px;
  flex: 1;
}
.panel-body.chart-wrap {
  position: relative;
  height: 280px;
  padding: 14px;
}
.panel-body.chart-wrap canvas { max-height: 100%; }

/* iframe (map) */
#property-map {
  width: 100%; height: 360px; border: 0;
  border-radius: 10px;
  filter: invert(.92) hue-rotate(180deg) brightness(.85) contrast(.95);
}

/* ─── Tables ───────────────────────────────────────────── */
.panel-body { overflow-x: auto; }     /* horizontal scroll for wide tables on mobile */
.panel-body.chart-wrap { overflow: hidden; }
.data-table {
  width: 100%; border-collapse: collapse;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  min-width: max-content;
}
.data-table th {
  text-align: left;
  font-weight: 500;
  color: var(--fg-2);
  padding: 6px 10px;
  border-bottom: 1px solid var(--line);
  font-size: 11.5px;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.data-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  color: var(--fg-1);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-2); color: var(--fg-0); }
.data-table .r { text-align: right; }
.data-table.compact th, .data-table.compact td { padding: 5px 8px; }
.bar-cell {
  position: relative; min-width: 80px;
}
.bar-cell::before {
  content: "";
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  height: 8px; border-radius: 4px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  width: var(--bar-width, 0%);
  opacity: .7;
}
.bar-cell span { position: relative; padding-left: 4px; }

/* ─── Misc ─────────────────────────────────────────────── */
.muted { color: var(--fg-2); }
.small { font-size: 12px; }
.mt { margin-top: 8px; }

#updated::before {
  content: "•"; color: var(--accent-green);
  margin-right: 6px; animation: pulse 1.6s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

.kv {
  display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px;
  font-size: 13px;
}
.kv dt { color: var(--fg-2); }
.kv dd { margin: 0; color: var(--fg-0); font-variant-numeric: tabular-nums; }

/* Thermostat state grid */
.thermo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}
.thermo-cell {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
}
.thermo-cell .label {
  font-size: 10.5px; color: var(--fg-2);
  text-transform: uppercase; letter-spacing: .05em;
}
.thermo-cell .val {
  font-size: 22px; font-weight: 600;
  color: var(--fg-0); font-variant-numeric: tabular-nums;
  margin-top: 4px;
}
.thermo-cell .sub { font-size: 11.5px; color: var(--fg-2); margin-top: 2px; }
.thermo-eq {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-3); padding: 3px 10px; border-radius: 999px;
  font-size: 11.5px; color: var(--fg-1);
  margin-right: 6px; margin-top: 4px;
}
.thermo-eq.on { background: rgba(255,107,107,.15); color: #ffb4b4; border: 1px solid rgba(255,107,107,.3); }
.thermo-eq.cool-on { background: rgba(43,217,212,.15); color: #b8f5f3; border: 1px solid rgba(43,217,212,.3); }
.thermo-occupancy { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 10.5px; }
.thermo-occupancy.occupied { background: rgba(93,255,166,.15); color: #c8ffe0; }
.thermo-occupancy.empty    { background: var(--bg-3); color: var(--fg-2); }

.daily-cost-summary {
  display: flex; gap: 28px; margin-bottom: 12px; flex-wrap: wrap;
}
.daily-cost-summary > div {
  display: flex; flex-direction: column;
}
.daily-cost-summary b {
  font-size: 24px; font-variant-numeric: tabular-nums;
  letter-spacing: -.02em; color: var(--fg-0);
}
.daily-cost-summary .muted { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }

.spike { color: var(--accent-pink); font-weight: 600; }
.good { color: var(--accent-green); }
.warn { color: var(--accent-amber); }
.bad  { color: var(--danger); }

/* Electric heatmap */
#electric-heatmap-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
#electric-heatmap {
  display: grid;
  grid-template-columns: 60px repeat(24, minmax(14px, 1fr));
  gap: 2px;
  font-size: 10px;
  color: var(--fg-2);
  min-width: 420px;
}
.hm-corner { font-size: 9px; color: var(--fg-2); padding: 2px; }
.hm-hourlabel { text-align: center; font-size: 9px; color: var(--fg-2); padding: 2px 0; }
.hm-daylabel  { font-size: 10px; color: var(--fg-2); padding: 2px 6px; text-align: right; white-space: nowrap; }
.hm-cell {
  aspect-ratio: 1.5 / 1;
  border-radius: 2px;
  background: var(--cell-color, var(--bg-2));
  position: relative;
  cursor: default;
  transition: transform .1s;
}
.hm-cell[data-kwh]:hover {
  transform: scale(1.4);
  outline: 1px solid var(--accent-cyan);
  z-index: 1;
}
.hm-cell::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translate(-50%, -4px);
  background: var(--bg-3);
  border: 1px solid var(--line-strong);
  color: var(--fg-0);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity .15s;
  z-index: 2;
}
.hm-cell:hover::after { opacity: 1; }
.hm-legend {
  display: flex; align-items: center; gap: 4px;
  font-size: 11px; margin-top: 12px; color: var(--fg-2);
}
.hm-legend-bar {
  display: flex; height: 10px; flex: 1; max-width: 200px;
  border-radius: 5px; overflow: hidden;
}
.hm-legend-bar > span { flex: 1; }