:root {
  color-scheme: light;
  --page: #f3f2ee;
  --surface: #fcfcfb;
  --surface-2: #f0efec;
  --surface-3: #e7e6e1;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.08);
  --border-strong: rgba(11, 11, 11, 0.16);
  --shadow: 0 1px 2px rgba(11, 11, 11, 0.04), 0 8px 24px -12px rgba(11, 11, 11, 0.12);
  --glow-tint: rgba(42, 120, 214, 0.10);

  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --series-7: #6250d6;
  --series-muted: #c9c8c0;
  --vt: var(--series-4);
  --mt: var(--series-7);

  --good: #0ca30c;
  --good-ink: #006300;
  --warning: #fab219;
  --critical: #d03b3b;

  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --unit-hi: #ffffff;
  --unit-lo: #e6e5e0;
  --unit-top: #16171a;
  --ring: #3d8bff;
  --radius: 18px;
  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display: "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0b0b0b;
    --surface: #171716;
    --surface-2: #222220;
    --surface-3: #2c2c2a;
    --ink: #f0efec;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2a2a28;
    --axis: #3a3a37;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.16);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px -16px rgba(0, 0, 0, 0.6);
    --glow-tint: rgba(57, 135, 229, 0.16);
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-7: #9085e9;
    --series-muted: #4a4a46;
    --good-ink: #0ca30c;
    --accent: #3987e5;
    --unit-hi: #2b2b29;
    --unit-lo: #1e1e1c;
    --unit-top: #0a0a0b;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0b0b0b;
  --surface: #171716;
  --surface-2: #222220;
  --surface-3: #2c2c2a;
  --ink: #f0efec;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --grid: #2a2a28;
  --axis: #3a3a37;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 32px -16px rgba(0, 0, 0, 0.6);
  --glow-tint: rgba(57, 135, 229, 0.16);
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-7: #9085e9;
  --series-muted: #4a4a46;
  --good-ink: #0ca30c;
  --accent: #3987e5;
  --unit-hi: #2b2b29;
  --unit-lo: #1e1e1c;
  --unit-top: #0a0a0b;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }

body {
  min-height: 100vh;
  background:
    radial-gradient(1100px 420px at 12% -120px, var(--glow-tint), transparent 70%),
    radial-gradient(900px 380px at 100% -160px, color-mix(in srgb, var(--series-2) 8%, transparent), transparent 70%),
    var(--page);
  background-repeat: no-repeat;
  color: var(--ink);
  font: 14px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
}

svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }

h1, h2 { margin: 0; font-family: var(--font-display); font-weight: 650; letter-spacing: -0.015em; }
h1 { font-size: 17px; }
h2 { font-size: 16px; }
p { margin: 0; }
a { color: var(--accent); }
code { font: 13px ui-monospace, "Cascadia Mono", Consolas, monospace; }
.muted { color: var(--ink-2); }
.small { font-size: 12.5px; }
.eyebrow { font-size: 11.5px; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  background: color-mix(in srgb, var(--page) 72%, transparent);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { max-width: 1320px; margin: 0 auto; padding: 10px 24px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 11px; min-width: 0; }
.brand-mark { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg, #3d8bff, #1f5fb8); box-shadow: 0 4px 14px -4px rgba(42, 120, 214, 0.6); }
.brand-mark svg { width: 20px; height: 20px; }
.brand-text p { font-size: 12px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.top-actions { display: flex; align-items: center; justify-content: flex-end; gap: 6px; }
.updated { font-size: 12px; color: var(--ink-2); margin-right: 6px; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.updated::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--good); box-shadow: 0 0 0 3px color-mix(in srgb, var(--good) 22%, transparent); }
.updated.stale::before { background: var(--warning); box-shadow: 0 0 0 3px color-mix(in srgb, var(--warning) 22%, transparent); }
.updated:empty { display: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 12px;
  border: 1px solid var(--border-strong); border-radius: 10px; background: var(--surface); color: var(--ink);
  font: inherit; font-weight: 550; text-decoration: none; cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}
.btn:hover { background: var(--surface-2); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible, .seg button:focus-visible, .lg:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn.icon { width: 34px; padding: 0; justify-content: center; }
.btn.small { height: 28px; padding: 0 10px; font-size: 12.5px; }
.btn.ghost { border-color: transparent; background: transparent; color: var(--ink-2); }
.btn.ghost:hover { background: var(--surface-2); color: var(--ink); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.07); }
.btn.danger { color: var(--critical); }
.btn.spin svg { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.seg { display: inline-flex; padding: 3px; gap: 2px; border-radius: 11px; background: var(--surface-2); border: 1px solid var(--border); }
.seg button { border: 0; background: transparent; color: var(--ink-2); font: inherit; font-weight: 600; font-size: 13px; padding: 5px 13px; border-radius: 8px; cursor: pointer; transition: color 0.15s, background 0.15s; }
.seg button:hover { color: var(--ink); }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1), 0 2px 8px -4px rgba(0, 0, 0, 0.2); }

/* ---------- layout ---------- */
.shell { max-width: 1320px; margin: 0 auto; padding: 20px 24px 48px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px 20px; margin-bottom: 16px; box-shadow: var(--shadow); min-width: 0; }
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.card-head p.muted { margin-top: 2px; }
.head-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-energy { display: grid; grid-template-columns: minmax(0, 2.1fr) minmax(280px, 1fr); gap: 16px; }
.chart-box { position: relative; height: 300px; }
.chart-box.tall { height: 360px; }
.card.show-table .chart-box, .card.show-table .heat-box { display: none; }

@media (prefers-reduced-motion: no-preference) {
  body.first #dash > * { animation: rise 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
  body.first #dash > *:nth-child(2) { animation-delay: 0.06s; }
  body.first #dash > *:nth-child(3) { animation-delay: 0.12s; }
  body.first #dash > *:nth-child(4) { animation-delay: 0.18s; }
  body.first #dash > *:nth-child(n + 5) { animation-delay: 0.24s; }
}
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
#dash.loading .card { opacity: 0.65; transition: opacity 0.2s; }

/* ---------- banner ---------- */
.banner { display: flex; align-items: flex-start; gap: 10px; padding: 10px 14px; margin-bottom: 16px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.banner svg { margin-top: 1px; }
.banner.info svg { color: var(--accent); }
.banner.error { border-color: color-mix(in srgb, var(--critical) 45%, transparent); }
.banner.error svg { color: var(--critical); }

/* ---------- hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(300px, 1fr); gap: 16px; }
.hero .card { margin-bottom: 16px; }
.hero-system { position: relative; overflow: hidden; }
.hero-system::before { content: ""; position: absolute; inset: 0; background: radial-gradient(500px 260px at 40% 55%, var(--glow-tint), transparent 70%); pointer-events: none; }
.hero-system > * { position: relative; }
.hero-system h2 { font-size: 20px; margin-top: 2px; }

.sys { width: 100%; height: auto; display: block; margin: 0 auto; max-height: 380px; stroke: none; fill: none; }
.sys text { text-anchor: middle; stroke: none; }
.s-label { font: 650 11px var(--font); letter-spacing: 0.09em; fill: var(--muted); }
.s-value { font: 650 32px var(--font-display); fill: var(--ink); letter-spacing: -0.02em; }
.s-value.sm { font-size: 23px; }
.s-sub { font: 500 12.5px var(--font); fill: var(--ink-2); }
.s-cap { font: 550 12px var(--font); fill: var(--muted); }
.halo { paint-order: stroke; stroke: var(--surface-2) !important; stroke-width: 5px; stroke-linejoin: round; }
.unit { fill: url(#g-unit); stroke: var(--border-strong); stroke-width: 1; }
.unit-top { fill: var(--unit-top); }
.ring { fill: none; stroke: var(--ring); stroke-width: 3; }
.glow { opacity: 0; transition: opacity 0.4s; }
.btn-dot { fill: #6b6b6b; }
.fan-ring { fill: var(--surface-2); stroke: var(--border-strong); stroke-width: 1; }
#fan path { fill: var(--muted); }
#fan { transform-box: view-box; transform-origin: 66px 198px; }
.hub { fill: var(--ink-2); }
.grille { stroke: var(--border-strong); stroke-width: 2; stroke-linecap: round; }
.pipe { stroke: var(--surface-3); stroke-width: 8; stroke-linecap: round; }
.flow { stroke-width: 3.2; stroke-linecap: round; stroke-dasharray: 1.5 10; opacity: 0; transition: opacity 0.4s; }
.flow.ref { stroke: var(--series-1); }
.flow.heat { stroke: var(--series-2); }
.flow.dhw { stroke: var(--series-3); }
.house { stroke: var(--ink-2); stroke-width: 2.5; stroke-linejoin: round; stroke-linecap: round; }
.house-body { fill: var(--surface-2); stroke: var(--axis); stroke-width: 1.2; }
.floor-loop { stroke: var(--axis); stroke-width: 2.5; stroke-linecap: round; transition: stroke 0.4s; }
.tank { fill: var(--surface-2); }
.tank-edge { fill: none; stroke: var(--axis); stroke-width: 1.2; }
#tank-fill { transition: y 0.8s ease, height 0.8s ease; }

.sys.running .glow { opacity: 1; }
.sys.running .flow.ref, .sys.heat-on .flow.heat, .sys.dhw-on .flow.dhw { opacity: 1; }
.sys.heat-on .floor-loop { stroke: var(--series-2); }
@media (prefers-reduced-motion: no-preference) {
  .sys.running .flow.ref, .sys.heat-on .flow.heat, .sys.dhw-on .flow.dhw { animation: flow 1.1s linear infinite; }
  .sys .flow.ret { animation-direction: reverse !important; }
  .sys.running #fan { animation: spin 1.8s linear infinite; }
  .sys.running .glow { animation: pulse 2.6s ease-in-out infinite; }
}
@keyframes flow { to { stroke-dashoffset: -23; } }
@keyframes pulse { 50% { opacity: 0.45; } }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); color: var(--ink-2); font-size: 12.5px; }
.chip b { color: var(--ink); font-weight: 600; }
.chip svg { width: 14px; height: 14px; }
.chip.good svg { color: var(--good); }
.chip.warning svg { color: var(--warning); }
.chip.critical svg { color: var(--critical); }
.chip.info svg { color: var(--muted); }
.health { display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px; border-radius: 999px; font-weight: 600; font-size: 13px; background: var(--surface-2); white-space: nowrap; }
.health svg { width: 16px; height: 16px; }
.health.good svg { color: var(--good); }
.health.warning svg { color: var(--warning); }
.health.critical { color: var(--critical); }

.hero-energy { display: flex; flex-direction: column; }
.hero-number { margin-top: 6px; font: 650 52px/1 var(--font-display); letter-spacing: -0.035em; }
.hero-number .unit, .month-number .unit { font-size: 0.4em; font-weight: 600; color: var(--ink-2); margin-left: 6px; letter-spacing: 0; }
.hero-meta { margin-top: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; color: var(--ink-2); font-size: 13px; }
.hero-meta b { color: var(--ink); font-weight: 650; }
.delta { display: inline-flex; align-items: center; gap: 3px; padding: 2px 8px 2px 6px; border-radius: 999px; background: var(--surface-2); font-weight: 600; color: var(--ink); }
.delta svg { width: 13px; height: 13px; stroke-width: 2.4; }
.delta.up svg { color: var(--critical); }
.delta.down svg { color: var(--good); }

.split { margin-top: 16px; }
.split-bar { display: flex; gap: 2px; height: 10px; border-radius: 5px; overflow: hidden; background: var(--surface-2); }
.split-bar span { display: block; height: 100%; transition: width 0.6s ease; }
.split-legend { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: 8px; font-size: 12.5px; color: var(--ink-2); }
.split-legend i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 6px; vertical-align: 1px; }
.split-legend b { color: var(--ink); font-weight: 600; }

.mini { margin-top: 18px; }
.mini-bars { display: grid; grid-template-columns: repeat(12, 1fr); gap: 4px; height: 76px; align-items: end; }
.mini-col { position: relative; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; gap: 1px; cursor: default; }
.mini-col .ghost { position: absolute; left: 0; right: 0; bottom: 0; border-radius: 3px 3px 0 0; background: var(--surface-2); border-top: 2px solid var(--axis); }
.mini-col .seg-part { position: relative; display: block; }
.mini-col .seg-part:first-child { border-radius: 3px 3px 0 0; }
.mini-col.now::after { content: ""; position: absolute; left: 50%; bottom: -8px; width: 4px; height: 4px; margin-left: -2px; border-radius: 50%; background: var(--ink-2); }
.mini-axis { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 10px; font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; }
.mini-note { margin-top: 6px; font-size: 11.5px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.mini-note i { display: inline-block; width: 10px; height: 8px; border-radius: 2px; background: var(--surface-2); border-top: 2px solid var(--axis); }

.divider { height: 1px; background: var(--grid); margin: 18px 0 14px; }
.month-row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-top: 6px; }
.month-number { font: 650 32px/1.05 var(--font-display); letter-spacing: -0.03em; }
.month-cost { font: 650 20px var(--font-display); color: var(--ink); }
.month-facts { margin-top: 10px; display: grid; gap: 8px; font-size: 12.5px; color: var(--ink-2); }
.fact { display: flex; justify-content: space-between; gap: 10px; }
.fact b { color: var(--ink); font-weight: 600; }
.compare { height: 6px; border-radius: 3px; background: var(--surface-2); position: relative; overflow: hidden; }
.compare span { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 3px; background: var(--series-1); }
.compare em { position: absolute; top: -2px; bottom: -2px; width: 2px; background: var(--ink-2); }

/* ---------- legend chips ---------- */
.legend { display: flex; flex-wrap: wrap; gap: 4px; }
.lg { display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--ink-2); font: inherit; font-size: 12.5px; font-weight: 550; cursor: pointer; transition: opacity 0.15s, background 0.15s; }
.lg:hover { background: var(--surface-2); }
.lg .sw { width: 10px; height: 10px; border-radius: 3px; border: 2px solid transparent; }
.lg[aria-pressed="false"] { opacity: 0.5; }
.lg[aria-pressed="false"] .sw { background: transparent !important; }

/* ---------- KPIs ---------- */
.kpis { display: flex; flex-wrap: wrap; gap: 10px 32px; margin-bottom: 14px; }
.kpi .k { color: var(--ink-2); font-size: 12px; display: flex; align-items: center; gap: 6px; }
.kpi .k i { width: 8px; height: 8px; border-radius: 2px; display: inline-block; }
.kpi .v { font: 650 21px var(--font-display); letter-spacing: -0.02em; }
.kpi .v small { font-size: 12.5px; color: var(--ink-2); font-weight: 550; margin-left: 3px; letter-spacing: 0; }

/* ---------- tariff ---------- */
.tariff-bar { display: flex; height: 44px; gap: 3px; border-radius: 12px; overflow: hidden; margin: 6px 0 16px; }
.tariff-bar span { display: flex; align-items: center; padding: 0 12px; font-weight: 650; font-size: 14px; color: #fff; min-width: 0; white-space: nowrap; transition: flex-basis 0.6s ease; }
.tariff-bar .vt { background: var(--vt); color: #0b0b0b; }
.tariff-bar .mt { background: var(--mt); justify-content: flex-end; }
.tariff-row { display: grid; grid-template-columns: auto 1fr auto; gap: 4px 12px; align-items: baseline; padding: 10px 0; border-top: 1px solid var(--grid); }
.tariff-row i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.tariff-row .name { font-weight: 600; }
.tariff-row .when { grid-column: 2; font-size: 12px; color: var(--ink-2); }
.tariff-row .val { text-align: right; font-weight: 650; }
.tariff-row .val small { display: block; font-weight: 500; color: var(--ink-2); font-size: 12px; }
.tariff-foot { margin-top: 12px; padding: 12px 14px; border-radius: 12px; background: var(--surface-2); font-size: 13px; color: var(--ink-2); }
.tariff-foot b { color: var(--ink); }

/* ---------- heatmap ---------- */
.heat-box { overflow-x: auto; }
.heatmap { --row-h: 18px; display: grid; grid-template-columns: 72px repeat(12, minmax(18px, 1fr)); gap: 3px; min-width: 420px; font-variant-numeric: tabular-nums; }
.heatmap .h { font-size: 11px; color: var(--muted); text-align: left; padding-bottom: 2px; }
.heatmap .band { height: 6px; border-radius: 3px; background: transparent; margin-bottom: 4px; }
.heatmap .band.on { background: color-mix(in srgb, var(--vt) 55%, transparent); }
.heatmap .band-label { font-size: 11px; color: var(--muted); align-self: center; margin-bottom: 4px; }
.heatmap .d { font-size: 12px; color: var(--ink-2); display: flex; align-items: center; height: var(--row-h); white-space: nowrap; }
.heatmap .d.we { color: var(--muted); }
.heatmap .c { height: var(--row-h); border-radius: 4px; background: var(--surface-2); transition: transform 0.1s; }
.heatmap .c.empty { background: repeating-linear-gradient(135deg, transparent 0 3px, var(--surface-2) 3px 5px); }
.heatmap .c:hover { transform: scale(1.12); box-shadow: 0 0 0 2px var(--surface), 0 0 0 3px var(--ink-2); position: relative; z-index: 1; }
.heat-legend { display: flex; align-items: center; gap: 10px; margin-top: 14px; font-size: 12px; color: var(--ink-2); flex-wrap: wrap; }
.heat-legend .ramp { width: 160px; height: 8px; border-radius: 4px; background: linear-gradient(90deg, var(--surface-2), var(--series-2)); }
.heat-legend .vt-key { display: inline-flex; align-items: center; gap: 6px; margin-left: 14px; }
.heat-legend .vt-key i { width: 18px; height: 6px; border-radius: 3px; background: color-mix(in srgb, var(--vt) 55%, transparent); }

/* ---------- insight callout ---------- */
.insight { display: flex; gap: 10px; align-items: flex-start; margin: -4px 0 12px; padding: 10px 12px; border-radius: 12px; background: var(--surface-2); font-size: 13px; color: var(--ink); }
.insight svg { color: var(--series-4); margin-top: 1px; }
.insight:empty { display: none; }

/* ---------- tooltip ---------- */
.tip { position: fixed; z-index: 50; pointer-events: none; max-width: 260px; padding: 9px 11px; border-radius: 10px; background: var(--surface); color: var(--ink-2); border: 1px solid var(--border-strong); box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.35); font-size: 12.5px; line-height: 1.45; }
.tip b { color: var(--ink); }
.tip .t { color: var(--ink); font-weight: 650; margin-bottom: 3px; }
.tip i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 6px; }

/* ---------- tables ---------- */
.table-wrap { max-height: 420px; overflow: auto; border: 1px solid var(--border); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; font-size: 13px; }
th, td { padding: 7px 12px; text-align: right; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { position: sticky; top: 0; background: var(--surface-2); color: var(--ink-2); font-weight: 600; font-size: 12px; }
tr:last-child td { border-bottom: 0; }

/* ---------- device ---------- */
.device-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
.device-item { padding: 11px 13px; border-radius: 12px; background: var(--surface-2); }
.device-item .k { color: var(--ink-2); font-size: 12px; }
.device-item .v { font-weight: 600; overflow-wrap: anywhere; }
.raw { margin-top: 14px; }
.raw summary { cursor: pointer; color: var(--ink-2); font-weight: 550; }
.raw pre { max-height: 420px; overflow: auto; padding: 12px; border-radius: 12px; background: var(--surface-2); font: 12px/1.5 ui-monospace, Consolas, monospace; }
.foot { text-align: center; margin-top: 10px; color: var(--muted); font-size: 12px; }

/* ---------- setup & forms ---------- */
.setup { max-width: 760px; margin: 10px auto 20px; padding: 24px 28px; }
.setup h2 { font-size: 20px; margin-bottom: 6px; }
.steps { padding-left: 20px; margin: 18px 0 0; display: grid; gap: 18px; }
.steps li > div, .steps li > form, .steps li > p { margin-top: 8px; }
.copy-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.copy-row code { padding: 6px 10px; border-radius: 8px; background: var(--surface-2); overflow-wrap: anywhere; }
.code-row { display: flex; gap: 8px; }
.code-row input { flex: 1; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; }
.form-grid.four { grid-template-columns: repeat(4, 1fr); }
.form-grid .wide { grid-column: 1 / -1; }
label { display: grid; gap: 4px; font-size: 12.5px; color: var(--ink-2); font-weight: 550; }
input { height: 36px; padding: 0 10px; border: 1px solid var(--border-strong); border-radius: 9px; background: var(--surface); color: var(--ink); font: inherit; min-width: 0; }
.form-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.form-actions.end { justify-content: flex-end; margin-top: 18px; }
.form-msg { font-size: 12.5px; color: var(--ink-2); }
.form-msg.err { color: var(--critical); }
.form-msg.ok { color: var(--good-ink); }
dialog { width: min(560px, calc(100vw - 32px)); max-height: calc(100vh - 40px); padding: 22px 24px; border: 1px solid var(--border); border-radius: 18px; background: var(--surface); color: var(--ink); box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.45); }
dialog::backdrop { background: rgba(0, 0, 0, 0.4); backdrop-filter: blur(3px); }
dialog h2 { font-size: 19px; margin-bottom: 8px; }
fieldset { border: 0; border-top: 1px solid var(--grid); margin: 14px 0 0; padding: 12px 0 0; }
legend { padding: 0 6px 0 0; font-weight: 600; font-size: 13px; }
fieldset p { margin-top: 8px; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; }
  .grid-energy { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .grid2 { grid-template-columns: 1fr; gap: 0; }
  .topbar-inner { grid-template-columns: 1fr auto; }
  .topbar .seg { grid-column: 1 / -1; grid-row: 2; justify-self: start; }
}
@media (max-width: 600px) {
  .topbar-inner { padding: 8px 16px; gap: 8px 10px; }
  .topbar .seg { justify-self: stretch; display: grid; grid-template-columns: repeat(4, 1fr); }
  .updated { display: none; }
  .brand-text p { display: none; }
  .shell { padding: 14px 16px 32px; }
  .card { padding: 15px 15px 16px; border-radius: 16px; }
  .card-head { flex-wrap: wrap; }
  .hero-number { font-size: 44px; }
  .chart-box { height: 260px; }
  .chart-box.tall { height: 300px; }
  .form-grid, .form-grid.four { grid-template-columns: 1fr 1fr; }
  .setup { padding: 18px; }
  .code-row { flex-direction: column; }
  .s-sub { font-size: 14px; }
  .s-label { font-size: 12.5px; }
}

.sw-i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 6px; vertical-align: 1px; flex: none; }

@media (max-width: 600px) {
  .heatmap { grid-template-columns: 50px repeat(12, minmax(0, 1fr)); gap: 2px; min-width: 0; }
  .heatmap .d { font-size: 11px; }
  .s-cap { font-size: 15px; }
  .s-sub { font-size: 15px; }
  .s-label { font-size: 13.5px; }
}

/* ---------- login ---------- */
.login { max-width: 400px; margin: 8vh auto 24px; padding: 30px 30px 26px; text-align: center; }
.login-mark { width: 52px; height: 52px; margin: 0 auto 14px; border-radius: 15px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg, #3d8bff, #1f5fb8); box-shadow: 0 8px 22px -8px rgba(42, 120, 214, 0.7); }
.login-mark svg { width: 24px; height: 24px; }
.login h2 { font-size: 21px; }
.login > p { margin-top: 6px; }
.login-form { display: grid; gap: 12px; margin-top: 20px; text-align: left; }
.login-form input:not([type="checkbox"]) { height: 40px; }
label.check { display: flex; align-items: center; gap: 8px; font-weight: 500; }
label.check input { width: 16px; height: 16px; margin: 0; accent-color: var(--accent); }
.btn.block { width: 100%; justify-content: center; height: 40px; }
body.locked .topbar .seg, body.locked .top-actions > :not(#btn-theme) { display: none; }