:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --surface-2: #f0efec;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #6f6d68;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);
  --accent: #256abf;

  /* Paleta kategoryczna (kolejność stała, zwalidowana pod kątem daltonizmu) */
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100;
  --s5: #e87ba4; --s6: #008300; --s7: #4a3aa7; --s8: #e34948;
  /* Struktura generacji: kolory znaczeniowe, kolejność warstw zwalidowana pod kątem daltonizmu */
  --g-wk: #262624; --g-wb: #8a5a2b; --g-gaz: #eb6834; --g-woda: #2a78d6;
  --g-wl: #1baf7a; --g-wm: #4a3aa7; --g-pv: #eda100; --g-bio: #008300;
  /* Para rozbieżna: import / eksport */
  --imp: #2a78d6; --exp: #e34948;
  /* Stany kompasu (paleta statusów) */
  --st0: #0ca30c; --st0-ink: #0b0b0b;
  --st1: #e6e5e0; --st1-ink: #0b0b0b;
  --st2: #fab219; --st2-ink: #0b0b0b;
  --st3: #d03b3b; --st3-ink: #ffffff;
  --ok: #006300;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d; --surface: #1a1a19; --surface-2: #242423;
    --ink: #ffffff; --ink-2: #c3c2b7; --muted: #9a988f;
    --grid: #2c2c2a; --axis: #383835; --border: rgba(255, 255, 255, 0.1); --accent: #5598e7;
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
    --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
    --imp: #3987e5; --exp: #e66767;
    --g-wk: #a9a79f; --g-wb: #7d4f25; --g-gaz: #d95926; --g-woda: #3987e5;
    --g-wl: #199e70; --g-wm: #9085e9; --g-pv: #c98500; --g-bio: #008300;
    --st1: #383835; --st1-ink: #ffffff;
    --ok: #0ca30c;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --surface-2: #242423;
  --ink: #ffffff; --ink-2: #c3c2b7; --muted: #9a988f;
  --grid: #2c2c2a; --axis: #383835; --border: rgba(255, 255, 255, 0.1); --accent: #5598e7;
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
  --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
  --imp: #3987e5; --exp: #e66767;
  --g-wk: #a9a79f; --g-wb: #7d4f25; --g-gaz: #d95926; --g-woda: #3987e5;
  --g-wl: #199e70; --g-wm: #9085e9; --g-pv: #c98500; --g-bio: #008300;
  --st1: #383835; --st1-ink: #ffffff;
  --ok: #0ca30c;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
h1, h2, h3 { margin: 0; line-height: 1.25; }
h2 { font-size: 1.15rem; font-weight: 650; }
h3 { font-size: 0.95rem; font-weight: 600; margin: 0 0 10px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); font-weight: 400; }

/* Nagłówek */
.top { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5; }
.top-inner { display: flex; flex-wrap: wrap; gap: 10px 20px; align-items: center; justify-content: space-between; padding-top: 10px; padding-bottom: 10px; }
.brand { display: flex; gap: 10px; align-items: center; }
.logo { font-size: 26px; color: var(--accent); line-height: 1; }
.brand h1 { font-size: 1.1rem; }
.sub { margin: 0; font-size: 0.8rem; color: var(--muted); }
.datenav { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
button, input[type="date"], .datenav select {
  font: inherit; color: var(--ink); background: var(--surface-2);
  border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; min-height: 36px;
}
button { cursor: pointer; }
button:hover:not(:disabled) { border-color: var(--axis); }
button:disabled { opacity: 0.4; cursor: default; }
button.ghost { background: transparent; }
#prev, #next { width: 36px; font-size: 18px; padding: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.date-label { margin: 18px 0 2px; font-size: 1.05rem; font-weight: 600; }
.date-label::first-letter { text-transform: uppercase; }

.alert { margin-top: 16px; padding: 12px 14px; border-radius: 10px; background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--st2); }

/* Karty */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px; margin-bottom: 16px; }
.card-head { margin-bottom: 14px; }
.card-head p { margin: 2px 0 0; font-size: 0.85rem; }
.state { color: var(--muted); margin: 8px 0; }
.state.error { color: var(--st3); }
.note { font-size: 0.8rem; color: var(--muted); margin: 8px 0 0; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 8px; }
@media (max-width: 820px) { .grid2 { grid-template-columns: 1fr; } }

/* Kafelki */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 14px; }
.tile { background: var(--surface-2); border-radius: 10px; padding: 10px 12px; min-width: 0; }
.tl { font-size: 0.8rem; color: var(--ink-2); }
.tv { font-size: 1.35rem; font-weight: 650; line-height: 1.3; overflow-wrap: anywhere; }
.td { font-size: 0.78rem; color: var(--muted); }

/* Kompas */
.hero { display: flex; gap: 16px; align-items: flex-start; padding: 16px; border-radius: 12px; margin-bottom: 18px; background: var(--surface-2); border-left: 6px solid var(--st1); }
.hero.s0 { border-left-color: var(--st0); }
.hero.s2 { border-left-color: var(--st2); }
.hero.s3 { border-left-color: var(--st3); }
.hero-icon { flex: none; width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; font-size: 24px; font-weight: 700; background: var(--st1); color: var(--st1-ink); }
.hero.s0 .hero-icon { background: var(--st0); color: var(--st0-ink); }
.hero.s2 .hero-icon { background: var(--st2); color: var(--st2-ink); }
.hero.s3 .hero-icon { background: var(--st3); color: var(--st3-ink); }
.hero-kicker { font-size: 0.85rem; color: var(--ink-2); }
.hero-state { font-size: 2rem; font-weight: 700; line-height: 1.15; }
.hero-tip { margin: 6px 0 0; color: var(--ink-2); max-width: 60ch; }
.hero-next { margin: 6px 0 0; font-size: 0.9rem; }

.strip-head { display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: baseline; margin: 14px 0 8px; }
.strip-head h3 { margin: 0; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pill { font-size: 0.78rem; padding: 2px 8px; border-radius: 99px; background: var(--st1); color: var(--st1-ink); }
.pill.s0 { background: var(--st0); color: var(--st0-ink); }
.pill.s2 { background: var(--st2); color: var(--st2-ink); }
.pill.s3 { background: var(--st3); color: var(--st3-ink); }

.strip { display: grid; grid-template-columns: repeat(var(--n), minmax(0, 1fr)); gap: 2px; }
@media (max-width: 700px) { .strip:not(.mini) { grid-template-columns: repeat(12, minmax(0, 1fr)); } }
.strip .cell { border-radius: 4px; background: var(--st1); color: var(--st1-ink); display: flex; flex-direction: column; align-items: center; padding: 5px 0 4px; min-height: 48px; font-variant-numeric: tabular-nums; }
.strip .cell .hh { font-size: 0.78rem; }
.strip .cell .ic { font-size: 0.8rem; font-weight: 700; }
.cell.s0, .cell-key.s0 { background: var(--st0); color: var(--st0-ink); }
.cell.s2, .cell-key.s2 { background: var(--st2); color: var(--st2-ink); }
.cell.s3, .cell-key.s3 { background: var(--st3); color: var(--st3-ink); }
.cell.sx { background: transparent; outline: 1px dashed var(--axis); outline-offset: -1px; }
.cell.now { box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--ink); position: relative; z-index: 1; }
.strip.mini { gap: 1px; }
.strip.mini .cell { min-height: 14px; padding: 0; border-radius: 2px; }
.cell-key { display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 4px; font-size: 11px; font-weight: 700; font-style: normal; background: var(--st1); color: var(--st1-ink); flex: none; }
.spans { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 6px; font-size: 0.9rem; }
.spans li { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.legend.states { margin-top: 14px; }

.history { margin-top: 14px; }
.history summary, .table-view summary { cursor: pointer; font-size: 0.85rem; color: var(--ink-2); }
.history-list { display: grid; gap: 10px; margin-top: 10px; }
.hist-meta { font-size: 0.8rem; margin-bottom: 3px; }
.hist-row:not(.active) { opacity: 0.75; }
.badge { font-size: 0.7rem; padding: 1px 6px; border-radius: 99px; background: var(--ink); color: var(--surface); }

/* Legenda i wykresy */
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 0.82rem; color: var(--ink-2); margin-bottom: 8px; }
.key { display: inline-flex; align-items: center; gap: 6px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; flex: none; }
.sw.none { background: transparent; }
.plan-key { display: inline-block; width: 2px; height: 12px; background: var(--ink); }
.chart { width: 100%; }
.chart svg { display: block; max-width: 100%; height: auto; touch-action: pan-y; }
.gridline { stroke: var(--grid); stroke-width: 1; }
.axis { stroke: var(--axis); stroke-width: 1; }
.tick { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.area-wash { opacity: 0.12; }
.band-wash { opacity: 0.22; }
.sw.wash { opacity: 0.4; }
.stack-area { stroke: var(--surface); stroke-width: 1; stroke-linejoin: round; }
.marker { stroke: var(--surface); stroke-width: 2; }
.crosshair { stroke: var(--axis); stroke-width: 1; }
.now-line { stroke: var(--ink-2); stroke-width: 1; }
.now-label { fill: var(--ink-2); font-size: 11px; }

.tooltip { position: fixed; z-index: 20; pointer-events: none; background: var(--surface); color: var(--ink); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-size: 0.8rem; box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18); min-width: 180px; }
.tt-h { font-weight: 650; margin-bottom: 4px; }
.tt-r { display: grid; grid-template-columns: 10px 1fr auto; gap: 8px; align-items: center; }
.tt-r b { font-weight: 600; font-variant-numeric: tabular-nums; text-align: right; }

.table-view { margin-top: 10px; }
.table-scroll { max-height: 320px; overflow: auto; margin-top: 8px; border: 1px solid var(--border); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 0.8rem; font-variant-numeric: tabular-nums; }
th, td { padding: 4px 8px; 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); font-weight: 600; }

/* Wymiana międzynarodowa */
.flows { display: grid; gap: 8px; }
.frow { display: grid; grid-template-columns: 76px 1fr; grid-template-areas: "n t" "v v"; gap: 2px 10px; align-items: center; }
.fname { grid-area: n; font-size: 0.88rem; }
.ftrack { grid-area: t; position: relative; height: 18px; }
.fzero { position: absolute; left: 50%; top: -2px; bottom: -2px; width: 1px; background: var(--axis); }
.fbar { position: absolute; top: 3px; height: 12px; }
.fbar.imp { background: var(--imp); border-radius: 0 4px 4px 0; }
.fbar.exp { background: var(--exp); border-radius: 4px 0 0 4px; }
.fplan { position: absolute; top: 0; height: 18px; width: 2px; margin-left: -1px; background: var(--ink); }
.fval { grid-area: v; font-size: 0.8rem; color: var(--ink-2); padding-left: 86px; }
@media (max-width: 480px) { .fval { padding-left: 0; } }

/* Aktualny miks */
.mix { display: grid; gap: 8px; }
.mrow { display: grid; grid-template-columns: minmax(110px, 1.2fr) 1.5fr auto; gap: 10px; align-items: center; font-size: 0.85rem; }
.mtrack { height: 12px; }
.mbar { display: block; height: 12px; background: var(--s1); border-radius: 0 4px 4px 0; min-width: 1px; }
.mval { font-variant-numeric: tabular-nums; white-space: nowrap; }
.ok { color: var(--ok); }
.off { color: var(--muted); }

.foot { color: var(--muted); font-size: 0.8rem; padding-bottom: 32px; }

@media (max-width: 600px) {
  .top { position: static; }
  .card { padding: 14px; }
  .hero { padding: 12px; gap: 12px; }
  .hero-icon { width: 40px; height: 40px; font-size: 18px; }
  .hero-state { font-size: 1.45rem; }
  .tiles { grid-template-columns: 1fr 1fr; }
  .tv { font-size: 1.1rem; }
  .mrow { grid-template-columns: 1fr auto; }
  .mtrack { grid-column: 1 / -1; grid-row: 2; }
}
.sub-h { margin: 18px 0 8px; }

/* Wykorzystanie mocy */
.util { display: grid; gap: 10px; margin-bottom: 8px; }
.urow { display: grid; grid-template-columns: minmax(200px, 1.3fr) 2fr minmax(210px, auto); gap: 6px 12px; align-items: center; font-size: 0.85rem; }
.uname { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.utrack { position: relative; height: 14px; background: var(--surface-2); border-radius: 0 4px 4px 0; }
.ubar { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 0 4px 4px 0; min-width: 1px; }
.umax { position: absolute; top: -3px; bottom: -3px; width: 2px; margin-left: -1px; background: var(--ink); }
.uval { font-variant-numeric: tabular-nums; white-space: nowrap; }
@media (max-width: 700px) {
  .urow { grid-template-columns: 1fr; }
}

/* Interaktywne wykresy: legenda-przełączniki i sterowanie zakresem */
.chart-bar { display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: flex-start; justify-content: space-between; margin-bottom: 6px; }
.chart-bar .legend { margin-bottom: 0; flex: 1 1 300px; }
.key.toggle { font: inherit; font-size: 0.82rem; color: var(--ink-2); background: transparent; border: 1px solid transparent; border-radius: 6px; padding: 2px 6px; min-height: 28px; cursor: pointer; }
.key.toggle:hover { border-color: var(--border); background: var(--surface-2); }
.key.toggle.off { color: var(--muted); text-decoration: line-through; }
.key.toggle.off .sw { opacity: 0.25; }
.zoom-ctl { display: flex; gap: 4px; flex: none; }
.zoom-ctl button { min-height: 28px; min-width: 30px; padding: 0 8px; font-size: 0.95rem; line-height: 1; }
.ichart svg { cursor: crosshair; user-select: none; -webkit-user-select: none; }
.zoom-sel { fill: var(--accent); opacity: 0.12; stroke: var(--accent); stroke-width: 1; }
.chart-hint { font-size: 0.78rem; color: var(--muted); margin: 0 0 12px; }

/* Obciążenie połączeń: przełącznik skali i znaczniki 50%/100% */
.seg { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin: 0 0 10px; }
.seg button { border: 0; border-radius: 0; min-height: 30px; font-size: 0.8rem; background: transparent; color: var(--ink-2); padding: 4px 10px; }
.seg button + button { border-left: 1px solid var(--border); }
.seg button.on { background: var(--ink); color: var(--surface); }
.ftrack.pct { background:
  linear-gradient(var(--grid), var(--grid)) 0 0 / 1px 100% no-repeat,
  linear-gradient(var(--grid), var(--grid)) 25% 0 / 1px 100% no-repeat,
  linear-gradient(var(--grid), var(--grid)) 75% 0 / 1px 100% no-repeat,
  linear-gradient(var(--grid), var(--grid)) 100% 0 / 1px 100% no-repeat; }
.fbar.over { box-shadow: 0 0 0 2px var(--st3); }
.warn { color: var(--ink); background: var(--st2); border-radius: 4px; padding: 0 4px; font-size: 0.72rem; }
.error-note { color: var(--st3); }

/* Nawigacja po sekcjach */
.toc { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 10px; }
.toc a { font-size: 0.8rem; text-decoration: none; color: var(--ink-2); background: var(--surface); border: 1px solid var(--border); border-radius: 99px; padding: 3px 10px; }
.toc a:hover { border-color: var(--axis); color: var(--ink); }
.card { scroll-margin-top: 72px; }
@media (max-width: 600px) { .card { scroll-margin-top: 8px; } }

/* Zakładki Prąd / Gaz */
.tabs { margin-left: 8px; display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.tabs a { padding: 5px 14px; font-size: 0.9rem; text-decoration: none; color: var(--ink-2); }
.tabs a + a { border-left: 1px solid var(--border); }
.tabs a[aria-current="page"] { background: var(--ink); color: var(--surface); }
.tabs a:not([aria-current]):hover { color: var(--ink); background: var(--surface-2); }
#range .seg { margin: 0; }
.smalls { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 8px 20px; }
.small .sub-h { margin-bottom: 0; }
.small-sum { margin: 2px 0 4px; font-size: 0.8rem; }

/* Instalacja jako aplikacja */
img.logo { width: 32px; height: 32px; border-radius: 8px; }
.install { border-color: var(--g-gaz); color: var(--ink); }
.install-help { position: fixed; z-index: 30; left: 16px; right: 16px; bottom: 16px; max-width: 420px; margin: 0 auto; background: var(--surface); color: var(--ink); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25); }
.install-help h2 { font-size: 1rem; margin: 0 0 6px; }
.install-help ol { margin: 0 0 8px; padding-left: 1.3em; }
.install-help li { margin: 4px 0; }
.install-help p { margin: 0 0 8px; font-size: 0.85rem; }
.grp-h { margin: 14px 0 6px; font-size: 0.9rem; }
.sub-list { font-size: 0.78rem; color: var(--ink-2); flex-basis: 100%; }
.sub-list summary { cursor: pointer; color: var(--muted); }
.stackbar { display: flex; gap: 2px; height: 18px; margin: 4px 0 8px; }
.stackbar span { border-radius: 2px; min-width: 2px; }
.stackbar span:first-child { border-radius: 4px 2px 2px 4px; }
.stackbar span:last-child { border-radius: 2px 4px 4px 2px; }
.urow.hl .uname, .urow.hl .uval { font-weight: 700; }

/* Podzakładki dzienne / miesięczne / roczne */
.views { display: flex; gap: 0; margin: 14px 0 4px; border-bottom: 1px solid var(--border); }
.views button { border: 0; border-radius: 0; background: transparent; color: var(--ink-2); padding: 8px 16px; font-size: 0.95rem; border-bottom: 3px solid transparent; margin-bottom: -1px; min-height: 40px; }
.views button.on { color: var(--ink); border-bottom-color: var(--ink); font-weight: 600; }
.views button:hover { color: var(--ink); }
.year-sel { display: inline-flex; align-items: center; gap: 6px; font-size: 0.9rem; margin: 0 0 10px; }
.year-sel select { font: inherit; color: var(--ink); background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px; padding: 4px 8px; }
[hidden] { display: none !important; }
.country-row { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; margin: 10px 0 0; }
.country-row .year-sel { margin: 0; }
.country-note { font-size: 0.8rem; }
.ctl-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; margin: 0 0 10px; }
.ctl-row .year-sel, .ctl-row .seg { margin: 0; }
.warn-box { margin: 0 0 12px; padding: 8px 12px; border-radius: 8px; background: var(--surface-2); border-left: 4px solid var(--st2); font-size: 0.85rem; }
.datectl { display: inline-flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.kdays { display: grid; gap: 8px; margin-top: 8px; }
.kday-h { font-size: 0.85rem; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 4px; }