/* Lightek Remote. Tokens follow the dataviz reference palette (chrome, ink, series slots, status). */
:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --surface-2: #f1f0ec;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #6f6d68;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --focus: #2a78d6;

  --accent: #2a78d6;
  --accent-hover: #256abf;
  --accent-ink: #ffffff;

  /* Categorical slots 1-3 (validated all-pairs) and slot 7, fixed per entity */
  --c-load: #2a78d6;
  --c-solar: #eb6834;
  --c-battery: #1baf7a;
  --c-grid: #4a3aa7;

  /* Status palette: always paired with an icon + label */
  --good: #0ca30c;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;
  --good-text: #006300;

  --meter-track: #cde2fb;
  --meter-fill: #2a78d6;
  --div-below: #2a78d6;
  --div-above: #e34948;

  --radius: 14px;
  --radius-sm: 8px;
  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --surface-2: #242422;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #9a9890;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --focus: #3987e5;
    --accent: #3987e5;
    --accent-hover: #5598e7;
    --accent-ink: #0b0b0b;
    --c-load: #3987e5;
    --c-solar: #d95926;
    --c-battery: #199e70;
    --c-grid: #9085e9;
    --good-text: #0ca30c;
    --meter-track: #184f95;
    --meter-fill: #6da7ec;
    --div-below: #3987e5;
    --div-above: #e66767;
  }
  :root:not([data-theme="light"]) .logo-on-light { display: none !important; }
  :root:not([data-theme="light"]) .logo-on-dark { display: block !important; }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --surface-2: #242422;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #9a9890;
  --grid: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.10);
  --focus: #3987e5;
  --accent: #3987e5;
  --accent-hover: #5598e7;
  --accent-ink: #0b0b0b;
  --c-load: #3987e5;
  --c-solar: #d95926;
  --c-battery: #199e70;
  --c-grid: #9085e9;
  --good-text: #0ca30c;
  --meter-track: #184f95;
  --meter-fill: #6da7ec;
  --div-below: #3987e5;
  --div-above: #e66767;
}
:root[data-theme="dark"] .logo-on-light { display: none !important; }
:root[data-theme="dark"] .logo-on-dark { display: block !important; }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 15px/1.5 var(--font);
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 1.6rem; font-weight: 650; letter-spacing: -0.01em; }
h2 { font-size: 0.95rem; font-weight: 600; }
code { font-family: var(--mono); font-size: 0.88em; background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.muted { color: var(--ink-2); }
.small { font-size: 0.82rem; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 20px;
  padding: 10px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 650; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand .logo { height: 24px; width: auto; display: block; }
.brand-product { color: var(--ink-2); font-weight: 550; padding-left: 10px; border-left: 1px solid var(--axis); line-height: 20px; }
.logo-on-dark { display: none !important; }
.topnav { display: flex; gap: 4px; }
.topnav a { color: var(--ink-2); padding: 6px 10px; border-radius: var(--radius-sm); }
.topnav a:hover { background: var(--surface-2); text-decoration: none; }
.topnav a[aria-current="page"] { color: var(--ink); background: var(--surface-2); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.topbar-right form { margin: 0; }
.who { display: flex; align-items: center; gap: 8px; color: var(--ink-2); font-size: 0.88rem; }
.role-badge {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em;
  padding: 2px 7px; border-radius: 99px; background: var(--surface-2); color: var(--ink-2);
}
.icon-btn {
  display: grid; place-items: center; width: 34px; height: 34px;
  border: 1px solid var(--border); border-radius: 50%; background: transparent; color: var(--ink-2); cursor: pointer;
}
.icon-btn svg { width: 16px; height: 16px; fill: currentColor; }

/* ---------- layout ---------- */
.page { max-width: 1240px; margin: 0 auto; padding: 24px; }
.page-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 24px; margin-bottom: 20px; }
.page-actions { display: flex; gap: 8px; }
.back-link { display: inline-block; font-size: 0.85rem; margin-bottom: 4px; }
.meta-line { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; margin: 6px 0 0; font-size: 0.88rem; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.span-all { grid-column: 1 / -1; }
.span-2 { grid-column: span 2; }
@media (max-width: 720px) { .span-2 { grid-column: 1 / -1; } }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  min-width: 0;
}
.card-flush { padding: 0; overflow: hidden; }
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.subhead { font-size: 0.9rem; font-weight: 600; margin: 22px 0 4px; padding-top: 18px; border-top: 1px solid var(--grid); }

/* ---------- buttons & forms ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-weight: 550; font-size: 0.9rem;
  padding: 8px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface-2); color: var(--ink);
  cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { text-decoration: none; filter: brightness(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: transparent; color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-hover); filter: none; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 5px 11px; font-size: 0.85rem; }
.btn-block { width: 100%; }
.btn[aria-pressed="true"] { background: var(--ink); color: var(--surface); border-color: transparent; }

.field { display: flex; flex-direction: column; gap: 4px; font-size: 0.85rem; color: var(--ink-2); }
.field-inline { flex-direction: row; align-items: center; gap: 8px; }
.field input, .field select {
  font: inherit; font-size: 0.95rem; color: var(--ink);
  background: var(--surface); border: 1px solid var(--axis); border-radius: var(--radius-sm);
  padding: 7px 10px; min-width: 0;
}
.field input[type="number"] { width: 84px; }
.check { display: inline-flex; align-items: center; gap: 6px; font-size: 0.9rem; }
.unit { color: var(--ink-2); }
.stack { display: flex; flex-direction: column; gap: 14px; }
.form-error { color: var(--critical); font-weight: 550; margin: 0 0 12px; }

.segmented { display: inline-flex; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.segmented button { font: inherit; font-size: 0.82rem; padding: 4px 10px; border: 0; background: transparent; color: var(--ink-2); cursor: pointer; }
.segmented button + button { border-left: 1px solid var(--border); }
.segmented button[aria-pressed="true"] { background: var(--surface-2); color: var(--ink); font-weight: 600; }

/* ---------- login / empty ---------- */
.login { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 28px; min-height: 70vh; }
.login-logo .logo { height: 48px; width: auto; display: block; }
.login-card { width: min(400px, 100%); padding: 28px; }
.login-card h1 { margin-bottom: 4px; }
.login-card > p { margin: 0 0 20px; }
.empty-state { text-align: center; padding: 60px 0; }
.empty-state h1 { margin-bottom: 8px; }

/* ---------- status ---------- */
.status-pill { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--ink); }
.status-icon { width: 14px; height: 14px; flex: none; }
.status-icon.good { fill: var(--good); }
.status-icon.warning { fill: var(--warning); }
.status-icon.serious { fill: var(--serious); }
.status-icon.critical { fill: var(--critical); }
.status-icon.info, .status-icon.neutral { fill: var(--muted); }

.alarm-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.alarm-list li { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; border-bottom: 1px solid var(--grid); }
.alarm-list li:last-child { border-bottom: 0; }
.alarm-list .status-icon { margin-top: 3px; }
.alarm-text { flex: 1; min-width: 0; }
.alarm-sev { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-2); font-weight: 600; }
.alarm-since { font-size: 0.8rem; color: var(--ink-2); white-space: nowrap; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.chip {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.78rem; padding: 3px 9px; border-radius: 99px;
  background: var(--surface-2); color: var(--ink-2);
}
.chip.on { color: var(--ink); font-weight: 550; }
.chip .status-icon { width: 11px; height: 11px; }

/* ---------- key/value ---------- */
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; font-size: 0.9rem; }
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; font-weight: 550; }
.kv .na { color: var(--muted); font-weight: 400; }

/* ---------- meter / SoC ---------- */
.soc-row { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
.soc-value { font-size: 2rem; font-weight: 650; min-width: 88px; }
.soc-row .meter { flex: 1; }
.meter { position: relative; width: 100%; height: 10px; border-radius: 99px; background: var(--meter-track); overflow: hidden; }
.meter > span { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: 99px; background: var(--meter-fill); transition: width 0.6s ease; }
.meter.warning > span { background: var(--warning); }
.meter.critical > span { background: var(--critical); }
.meter-lg { height: 14px; margin: 10px 0 12px; }

/* ---------- energy flow ---------- */
.flow-svg { width: 100%; height: auto; display: block; max-height: 320px; }
.flow { fill: none; stroke: var(--grid); stroke-width: 3; stroke-linecap: round; }
.flow.on { stroke-dasharray: 2 9; animation: flow 1.1s linear infinite; }
.flow.on.rev { animation-direction: reverse; }
.flow-solar.on { stroke: var(--c-solar); }
.flow-grid.on { stroke: var(--c-grid); }
.flow-battery.on { stroke: var(--c-battery); }
.flow-load.on { stroke: var(--c-load); }
@keyframes flow { to { stroke-dashoffset: -22; } }
@media (prefers-reduced-motion: reduce) { .flow.on { animation: none; stroke-dasharray: none; } }
.node circle, .node rect:first-child { fill: var(--surface-2); stroke: var(--border); stroke-width: 1; }
.node .glyph { fill: none; stroke: var(--ink-2); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.node-solar .glyph { stroke: var(--c-solar); }
.node-grid .glyph { stroke: var(--c-grid); }
.node-battery .glyph { stroke: var(--c-battery); }
.node-load .glyph { stroke: var(--c-load); }
.node .battery-level { fill: var(--c-battery); stroke: none; }
.node text { text-anchor: middle; font-family: var(--font); }
.node-label { font-size: 11px; fill: var(--ink-2); }
.node-value { font-size: 13px; font-weight: 650; fill: var(--ink); }

/* ---------- cells ---------- */
.cells { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); }
.cells > p { grid-column: 1 / -1; margin: 0; }
.cell { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px 10px; background: var(--surface); }
.cell-no { font-size: 0.72rem; color: var(--ink-2); display: flex; justify-content: space-between; }
.cell-mv { font-weight: 650; font-variant-numeric: tabular-nums; }
.cell-bar { position: relative; height: 4px; margin-top: 6px; background: var(--surface-2); border-radius: 2px; }
.cell-bar::before { content: ""; position: absolute; left: 50%; top: -2px; bottom: -2px; width: 1px; background: var(--axis); }
.cell-bar > span { position: absolute; top: 0; bottom: 0; border-radius: 2px; }
.cell-bar > span.below { background: var(--div-below); }
.cell-bar > span.above { background: var(--div-above); }
.cell.extreme { border-color: var(--ink-2); }

/* ---------- charts ---------- */
.charts { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.chart { margin: 0; min-width: 0; position: relative; }
.chart.loading svg { opacity: 0.5; }
.chart-title { font-size: 0.85rem; font-weight: 600; margin-bottom: 2px; }
.chart-sub { font-size: 0.78rem; color: var(--ink-2); margin-bottom: 6px; }
.legend { display: flex; flex-wrap: wrap; gap: 12px; font-size: 0.78rem; color: var(--ink-2); margin-bottom: 4px; }
.legend-key { display: inline-block; width: 14px; height: 2px; border-radius: 1px; vertical-align: middle; margin-right: 5px; }
.chart svg { display: block; width: 100%; height: 180px; overflow: visible; touch-action: pan-y; }
.chart svg:focus-visible { outline-offset: 4px; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; }
.chart .tick { font-size: 10.5px; fill: var(--muted); font-variant-numeric: tabular-nums; }
.chart .series { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .wash { stroke: none; opacity: 0.1; }
.chart .crosshair { stroke: var(--ink-2); stroke-width: 1; }
.chart .hover-dot { stroke: var(--surface); stroke-width: 2; }
.chart-empty { font-size: 0.85rem; color: var(--ink-2); padding: 40px 0; text-align: center; }
.tooltip {
  position: absolute; pointer-events: none; z-index: 5;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12); padding: 7px 10px; font-size: 0.8rem; min-width: 120px;
}
.tooltip-time { color: var(--ink-2); font-size: 0.75rem; margin-bottom: 3px; }
.tooltip-row { display: flex; align-items: center; gap: 6px; }
.tooltip-row strong { font-variant-numeric: tabular-nums; }
.tooltip-row span:last-child { color: var(--ink-2); }
.chart details { margin-top: 6px; font-size: 0.8rem; }
.chart details summary { cursor: pointer; color: var(--ink-2); }
.chart details .table-wrap { max-height: 220px; overflow: auto; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.table th { text-align: left; font-weight: 600; color: var(--ink-2); font-size: 0.78rem; padding: 10px 14px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
.table td { padding: 10px 14px; border-bottom: 1px solid var(--grid); vertical-align: top; }
.table tbody tr:last-child td { border-bottom: 0; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.table tr.link-row { cursor: pointer; }
.table tr.link-row:hover td { background: var(--surface-2); }
.site-name { font-weight: 600; color: var(--ink); }
.card:not(.card-flush) .table th, .card:not(.card-flush) .table td { padding-left: 0; }
details { margin-top: 6px; }
details summary { cursor: pointer; padding: 6px 0; font-weight: 550; }

/* ---------- controls ---------- */
.control-rows { display: flex; flex-direction: column; }
.control-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 10px 0; border-bottom: 1px solid var(--grid); }
.control-row:last-child { border-bottom: 0; }
.control-title { font-weight: 550; }
.control-actions { display: flex; gap: 6px; }
.tariff-form { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; }
.tariff-window { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; border: 1px solid var(--grid); border-radius: var(--radius-sm); padding: 8px 12px 10px; margin: 0; }
.tariff-window legend { font-size: 0.8rem; color: var(--ink-2); padding: 0 4px; }
.form-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ---------- customer ---------- */
.customer-grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); }
.customer-grid .span-all { grid-column: 1 / -1; }
.hero-card { display: flex; flex-direction: column; justify-content: center; }
.eyebrow { font-size: 0.85rem; color: var(--ink-2); font-weight: 600; }
.hero-value { font-size: 64px; font-weight: 700; line-height: 1.05; letter-spacing: -0.02em; }
.hero-sub { margin: 0; color: var(--ink-2); }
.tiles { display: grid; gap: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.tile-label { font-size: 0.82rem; color: var(--ink-2); }
.tile-value { font-size: 1.35rem; font-weight: 650; margin-top: 2px; display: flex; align-items: center; gap: 8px; }
.tile-value .status-icon { width: 16px; height: 16px; }
@media (max-width: 860px) { .customer-grid { grid-template-columns: minmax(0, 1fr); } }

/* ---------- dialog & toasts ---------- */
.dialog { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--ink); padding: 22px; width: min(460px, calc(100vw - 32px)); }
.dialog::backdrop { background: rgba(0, 0, 0, 0.4); }
.dialog form { margin: 0; }
.dialog-title { font-size: 1.1rem; margin-bottom: 10px; }
.dialog-body { color: var(--ink-2); margin-bottom: 20px; }
.dialog-body ul { margin: 6px 0 0; padding-left: 18px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; }
.toasts { position: fixed; right: 16px; bottom: 16px; z-index: 50; display: flex; flex-direction: column; gap: 8px; max-width: calc(100vw - 32px); }
.toast { background: var(--ink); color: var(--surface); padding: 10px 14px; border-radius: var(--radius-sm); font-size: 0.88rem; box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2); }
.toast.error { background: var(--critical); color: #fff; }

/* ---------- small screens ---------- */
@media (max-width: 640px) {
  .page { padding: 16px; }
  .topbar { padding: 10px 16px; gap: 12px; }
  .who-name { display: none; }
  .grid { grid-template-columns: minmax(0, 1fr); }
  .hero-value { font-size: 52px; }
  .kv { font-size: 0.86rem; }
}
@media (max-width: 420px) {
  .who { display: none; }
  .brand .logo { height: 20px; }
  .brand-product { display: none; }
  .login-logo .logo { height: 36px; }
}