/* Solar Live: tokens first, light and dark. Series colours follow the entity everywhere (flow, cards, chart):
   home = slot 1 blue, grid = slot 2 orange, battery = slot 3 aqua, solar = slot 4 yellow. */
:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #6f6e69;
  --hair: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --home: #2a78d6;
  --grid: #eb6834;
  --battery: #1baf7a;
  --solar: #eda100;
  --good: #0ca30c;
  --good-ink: #006300;
  --warning: #fab219;
  --critical: #d03b3b;
  --idle: #c3c2b7;
  --focus: #2a78d6;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #f0efec;
    --ink-2: #c3c2b7;
    --muted: #a3a29c;
    --hair: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --home: #3987e5;
    --grid: #d95926;
    --battery: #199e70;
    --solar: #c98500;
    --good-ink: #0ca30c;
    --idle: #4a4a47;
    --focus: #3987e5;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --ink: #f0efec;
  --ink-2: #c3c2b7;
  --muted: #a3a29c;
  --hair: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.10);
  --home: #3987e5;
  --grid: #d95926;
  --battery: #199e70;
  --solar: #c98500;
  --good-ink: #0ca30c;
  --idle: #4a4a47;
  --focus: #3987e5;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.hidden, [hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 4px; }

.page { max-width: 1120px; margin: 0 auto; padding: 16px 16px 40px; display: grid; gap: 16px; }

/* Header */
.top { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 12px; }
.top h1 { margin: 0; font-size: 22px; line-height: 1.2; letter-spacing: -0.01em; }
.top-sub { margin: 2px 0 0; color: var(--ink-2); font-size: 13px; }
.top-side { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.pill, .live {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border); font-size: 13px; color: var(--ink);
}
.pill-icon { font-weight: 700; width: 14px; text-align: center; }
.pill[data-state="on-grid"] .pill-icon { color: var(--good-ink); }
.pill[data-state="off-grid"] .pill-icon { color: var(--ink); }
.pill[data-state="off-grid"] { border-color: var(--warning); }
.pill[data-state="fault"] { border-color: var(--critical); }
.pill[data-state="fault"] .pill-icon { color: var(--critical); }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--idle); }
.live[data-state="live"] .live-dot { background: var(--good); animation: pulse 2s ease-in-out infinite; }
.live[data-state="stale"] .live-dot { background: var(--warning); }
.live[data-state="down"] .live-dot { background: var(--critical); }
@keyframes pulse { 50% { opacity: 0.35; } }
.btn-quiet { font: inherit; font-size: 13px; color: var(--ink-2); background: none; border: 1px solid var(--border); border-radius: 999px; padding: 4px 10px; cursor: pointer; }
.btn-quiet:hover { color: var(--ink); }

.banner { margin: 0; padding: 10px 14px; border-radius: 10px; background: var(--surface); border: 1px solid var(--border); color: var(--ink-2); font-size: 14px; }
.banner-warn { border-color: var(--warning); color: var(--ink); }

.devices { display: flex; flex-wrap: wrap; gap: 8px; }
.devices button { font: inherit; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--ink-2); cursor: pointer; }
.devices button[aria-pressed="true"] { color: var(--ink); border-color: var(--ink-2); font-weight: 600; }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; min-width: 0; }
.card-h { margin: 0 0 8px; font-size: 14px; font-weight: 600; color: var(--ink-2); display: flex; align-items: center; gap: 8px; }
.swatch { width: 10px; height: 10px; border-radius: 3px; background: var(--c); flex: none; }
.stat-solar { --c: var(--solar); }
.stat-battery { --c: var(--battery); }
.stat-grid { --c: var(--grid); }
.stat-home { --c: var(--home); }
.cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 900px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .cards { grid-template-columns: minmax(0, 1fr); } }
.stat-big { margin: 0; font-size: 30px; font-weight: 650; line-height: 1.15; letter-spacing: -0.02em; }
.stat-note { margin: 4px 0 10px; color: var(--ink-2); font-size: 13px; }
.stat-note strong { color: var(--ink); font-weight: 600; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; margin: 0; font-size: 13px; }
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.kv .kv-note { grid-column: 1 / -1; margin: -3px 0 2px; text-align: left; color: var(--muted); font-size: 12px; }
.soc-bar { height: 6px; border-radius: 3px; background: var(--hair); overflow: hidden; margin: 8px 0 2px; }
.soc-fill { height: 100%; width: 0; background: var(--battery); border-radius: 3px; transition: width 0.6s ease; }

/* Flow diagram */
.flow-card { padding-bottom: 8px; }
.flow { display: block; width: 100%; max-width: 560px; margin: 0 auto; height: auto; overflow: visible; }
.flow-line { fill: none; stroke: var(--idle); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.flow-line.on { stroke-width: 3; stroke-dasharray: 2 9; animation: flow var(--dur, 2s) linear infinite; }
.flow-line.on.rev { animation-direction: reverse; }
#line-solar.on { stroke: var(--solar); }
#line-grid.on { stroke: var(--grid); }
#line-battery.on { stroke: var(--battery); }
#line-home.on { stroke: var(--home); }
@keyframes flow { to { stroke-dashoffset: -22; } }
@media (prefers-reduced-motion: reduce) { .flow-line.on { animation: none; stroke-dasharray: none; } .live-dot { animation: none !important; } }
.node circle, .node rect:not(.glyph-fill) { fill: var(--surface); stroke: var(--c, var(--axis)); stroke-width: 2; }
.node .glyph, .node .glyph * { fill: none; stroke: var(--c, var(--ink-2)); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.node .glyph-fill { fill: var(--c); stroke: none; }
.node-solar { --c: var(--solar); }
.node-grid { --c: var(--grid); }
.node-battery { --c: var(--battery); }
.node-home { --c: var(--home); }
.node-inverter { --c: var(--ink-2); }
.flow-label { font-size: 14px; fill: var(--ink-2); }
.flow-value { font-size: 20px; font-weight: 650; fill: var(--ink); }
.flow-sub { font-size: 13px; fill: var(--ink-2); }

/* Chart */
.chart-card { position: relative; }
.chart-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 4px; }
.chart-head .card-h { margin: 0; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 999px; padding: 2px; }
.seg button { font: inherit; font-size: 13px; border: 0; background: none; color: var(--ink-2); padding: 4px 12px; border-radius: 999px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--hair); color: var(--ink); font-weight: 600; }
.legend { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 16px; padding: 0; margin: 8px 0 2px; font-size: 13px; color: var(--ink); }
.legend li { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 14px; height: 2px; border-radius: 1px; background: var(--c); display: inline-block; }
.chart-hint { margin: 0 0 6px; color: var(--ink-2); font-size: 12px; }
.chart-sub { margin: 10px 0 0; font-size: 13px; font-weight: 600; color: var(--ink-2); }
.chart { position: relative; width: 100%; touch-action: pan-y; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart.loading { opacity: 0.5; }
.chart .gridline { stroke: var(--hair); stroke-width: 1; }
.chart .zero { stroke: var(--axis); stroke-width: 1; }
.chart .tick { font-size: 11px; fill: var(--muted); font-variant-numeric: tabular-nums; }
.chart .series { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .end-label { font-size: 12px; fill: var(--ink-2); }
.chart .cross { stroke: var(--ink-2); stroke-width: 1; }
.chart .dot { stroke: var(--surface); stroke-width: 2; }
.chart .hit { fill: transparent; cursor: crosshair; }
.chart .empty { font-size: 13px; fill: var(--ink-2); }
.tooltip {
  position: absolute; z-index: 2; pointer-events: none; min-width: 150px; padding: 8px 10px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border); box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12); font-size: 12px;
}
.tooltip .tt-time { color: var(--ink-2); margin-bottom: 4px; }
.tooltip .tt-row { display: flex; align-items: center; gap: 8px; }
.tooltip .tt-row i { width: 8px; height: 8px; border-radius: 2px; background: var(--c); flex: none; }
.tooltip .tt-row strong { font-variant-numeric: tabular-nums; min-width: 64px; }
.tooltip .tt-row span { color: var(--ink-2); }
.table-view { margin-top: 12px; font-size: 13px; }
.table-view summary { cursor: pointer; color: var(--ink-2); }
.table-wrap { overflow-x: auto; margin-top: 8px; }
.table-view table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
.table-view th, .table-view td { text-align: right; padding: 4px 8px; border-bottom: 1px solid var(--hair); white-space: nowrap; }
.table-view th:first-child, .table-view td:first-child { text-align: left; }
.table-view th { color: var(--ink-2); font-weight: 600; }

/* Alerts */
.alerts { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.alerts li { display: flex; gap: 10px; align-items: baseline; font-size: 14px; }
.alert-icon { font-weight: 700; width: 16px; text-align: center; flex: none; }
.alert-fault .alert-icon { color: var(--critical); }
.alert-warn .alert-icon { color: var(--ink); }
.alert-code { color: var(--ink-2); font-size: 12px; }
.alert-none { color: var(--ink-2); }

.foot { color: var(--ink-2); font-size: 12px; text-align: center; }
.foot p { margin: 2px 0; }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 360px; display: grid; gap: 8px; padding: 24px; }
.login-h { margin: 0; font-size: 22px; }
.login-sub { margin: 0 0 8px; color: var(--ink-2); font-size: 14px; }
.login-error { margin: 0; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--critical); font-size: 14px; }
.login label { font-size: 13px; color: var(--ink-2); }
.login input { font: inherit; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--axis); background: var(--page); color: var(--ink); }
.btn { font: inherit; font-weight: 600; padding: 10px 12px; border-radius: 10px; border: 0; background: var(--ink); color: var(--surface); cursor: pointer; margin-top: 4px; }