/* TWW Monitor — bez frameworka, bez zewnętrznych fontów i bez CDN (ADR-006).
 * Paleta przejęta z panelu lokalnego, żeby strona publiczna wyglądała jak
 * ta sama rodzina produktowa. */

:root {
  --bg: #101417;
  --panel: #182026;
  --panel-2: #1d262d;
  --linie: #26323b;
  --text: #e8eef2;
  --muted: #8fa0aa;
  --akzent: #ffd84d;
  --ok: #35c46a;
  --warn: #f0a500;
  --bad: #ff5c5c;

  --s-speicher: #ffd84d;
  --s-zirk: #4fc3f7;
  --s-vl: #ff8a5c;
  --s-rl: #8b9df0;

  --radius: 14px;
  --gap: 1rem;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 50% -10%, #16202a 0%, transparent 60%),
    var(--bg);
  color: var(--text);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-variant-numeric: tabular-nums;
  min-height: 100vh;
}

/* ---------------------------------------------------------------- Banner */
.banner {
  margin: 0;
  padding: 0.6rem 1rem;
  text-align: center;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--linie);
}
.banner-sim { background: #3a2d05; color: var(--akzent); }
.banner-alt {
  background: rgba(240, 165, 0, 0.1);
  border: 1px solid rgba(240, 165, 0, 0.35);
  border-radius: 10px;
  color: var(--warn);
  margin-top: 0.9rem;
}

/* ------------------------------------------------------------------ Kopf */
.kopf {
  border-bottom: 1px solid var(--linie);
  background: linear-gradient(180deg, rgba(255,255,255,0.03), transparent);
}
.kopf-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.6rem 1.2rem 1.3rem;
}

.marke {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}
.marke-punkt {
  width: 0.55rem; height: 0.55rem;
  border-radius: 2px;
  background: var(--akzent);
}

h1 {
  margin: 0.5rem 0 0.15rem;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 650;
  letter-spacing: -0.01em;
}
.standort { margin: 0; color: var(--muted); font-size: 0.9rem; }

/* Trzy poziomy łączności — nigdy jeden zbiorczy zielony status. */
.ebenen {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.1rem;
}
.ebene {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  background: var(--panel);
  border: 1px solid var(--linie);
  border-radius: 999px;
  font-size: 0.78rem;
}
.ebene-name { color: var(--muted); }
.ebene-wert { font-weight: 600; letter-spacing: 0.03em; }

.punkt {
  width: 0.55rem; height: 0.55rem;
  border-radius: 50%;
  background: var(--muted);
  flex: none;
}
.punkt.ok       { background: var(--ok);   box-shadow: 0 0 0.5rem rgba(53,196,106,0.7); }
.punkt.warn     { background: var(--warn); box-shadow: 0 0 0.5rem rgba(240,165,0,0.6); }
.punkt.bad      { background: var(--bad);  box-shadow: 0 0 0.5rem rgba(255,92,92,0.6); }
.punkt.unbekannt{ background: var(--muted); }

.stand { margin: 0.9rem 0 0; font-size: 0.82rem; color: var(--muted); }

/* ------------------------------------------------------------------ Main */
main {
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--gap) 1.2rem 2.5rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
}
.karte-breit { grid-column: 1 / -1; }

.karte {
  background: var(--panel);
  border: 1px solid var(--linie);
  border-radius: var(--radius);
  padding: 1.05rem 1.15rem 1.15rem;
  /* Bez tego element gridu nie kurczy się poniżej szerokości zawartości
     (min-width:auto) i schemat instalacji rozpycha całą stronę na telefonie. */
  min-width: 0;
}

.karte-kopf {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  justify-content: space-between;
}

h2 {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
.karte-kopf h2 { margin-bottom: 0; }

.etikett {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.klein { font-size: 0.78rem; color: var(--muted); }

.gross {
  margin: 0.3rem 0 0.2rem;
  font-size: 1.15rem;
  font-weight: 650;
}
.gross.ok { color: var(--ok); }
.gross.warn { color: var(--warn); }
.gross.bad { color: var(--bad); }
.gross.unbekannt { color: var(--muted); font-weight: 500; }

/* Dane nieaktualne — wygaszamy, ale NIE ukrywamy (ADR-004). */
body.veraltet .kachel .zahl,
body.veraltet .liste dd,
body.veraltet #betriebszustand,
body.veraltet .speicher-wert { opacity: 0.42; }

/* ------------------------------------------------------------- Systemstatus */
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}
.status-block {
  background: var(--panel-2);
  border: 1px solid var(--linie);
  border-radius: 10px;
  padding: 0.8rem 0.9rem;
}
.stoerungsliste {
  margin: 0.4rem 0 0;
  padding-left: 1.05rem;
  font-size: 0.82rem;
  color: var(--muted);
}
.stoerungsliste li.kritisch { color: var(--bad); }
.stoerungsliste li.warnung { color: var(--warn); }

/* ---------------------------------------------------------------- Kacheln */
.kachel-reihe {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.7rem;
}
.kachel {
  background: var(--panel-2);
  border: 1px solid var(--linie);
  border-radius: 10px;
  padding: 0.75rem 0.85rem 0.85rem;
}
.kachel-akzent { border-color: rgba(255, 216, 77, 0.35); }

.wert {
  margin: 0.35rem 0 0;
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}
.zahl {
  font-size: clamp(1.5rem, 4.2vw, 1.95rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.zahl.fehlt { color: var(--muted); font-weight: 500; }
.einheit { font-size: 0.85rem; color: var(--muted); }

/* ----------------------------------------------------------------- Listen */
.liste { margin: 0; }
.zeile {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.42rem 0;
  border-bottom: 1px solid var(--linie);
}
.zeile:last-child { border-bottom: 0; }
dt { color: var(--muted); font-size: 0.9rem; }
dd { margin: 0; font-weight: 600; white-space: nowrap; }
dd.ein { color: var(--ok); }
dd.aus { color: var(--muted); }
dd.fehlt { color: var(--muted); font-weight: 500; }

/* ------------------------------------------------------------ Digital Twin */
.twin-huelle { width: 100%; overflow-x: auto; }
#twin { width: 100%; min-width: 620px; height: auto; display: block; }

#twin .rohr {
  fill: none;
  stroke: #33424e;
  stroke-width: 6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
#twin .rohr.aktiv { stroke-width: 7; }
#twin .rohr-warm.aktiv { stroke: #ff8a5c; }
#twin .rohr-kalt.aktiv { stroke: #8b9df0; }
#twin .rohr-zirk.aktiv { stroke: var(--s-zirk); }

/* Przepływ: jedyna animacja na stronie. Długa kreska + krótka przerwa —
   rura zostaje czytelna jako ciągła, przesuwa się tylko subtelny prześwit. */
#twin .rohr.stroemt {
  stroke-dasharray: 26 9;
  animation: fluss 1.9s linear infinite;
}
@keyframes fluss { to { stroke-dashoffset: -35; } }

#twin .block rect {
  fill: var(--panel-2);
  stroke: var(--linie);
  stroke-width: 1.5;
}
#twin .block-speicher rect { fill: #1b252d; stroke: #2f3f4a; }
#twin .block.aktiv rect { stroke: rgba(255, 216, 77, 0.55); }

#twin text {
  fill: var(--muted);
  font-size: 13px;
  text-anchor: middle;
  font-family: inherit;
}
#twin .block-titel { fill: var(--text); font-size: 13px; font-weight: 600; }
#twin .block-unter { font-size: 11.5px; }
#twin .speicher-wert {
  fill: var(--text);
  font-size: 34px;
  font-weight: 650;
}
#twin .speicher-einheit { font-size: 13px; }
/* Punkt pomiaru temperatury — kropka na rurociągu, jak na schemacie obiektu. */
#twin .messpunkt circle { fill: var(--s-zirk); stroke: var(--panel); stroke-width: 2; }
#twin .messpunkt .symbol-wert { fill: var(--text); font-size: 13px; font-weight: 600; }

#twin .hahn {
  fill: none; stroke: #3d4c58; stroke-width: 2.5; stroke-linecap: round;
}

#twin .symbol circle, #twin .symbol path { fill: none; stroke: #45555f; stroke-width: 2.5; }
#twin .symbol circle { fill: var(--panel-2); }
#twin .symbol .symbol-text { font-size: 11.5px; }
#twin .symbol .symbol-wert { fill: var(--text); font-size: 13px; font-weight: 600; }
#twin .symbol.aktiv circle { stroke: var(--ok); fill: rgba(53, 196, 106, 0.12); }
#twin .symbol.aktiv path { stroke: var(--ok); }
#twin .symbol.aktiv .fluegel { transform-origin: center; animation: dreht 2.4s linear infinite; }
#twin #sym-heizstab.aktiv path { stroke: var(--bad); }
#twin #sym-ventil.aktiv path { stroke: var(--akzent); }

@keyframes dreht { to { transform: rotate(360deg); } }
#twin #sym-ladepumpe .fluegel { transform-box: fill-box; }
#twin #sym-zirkpumpe .fluegel { transform-box: fill-box; }

/* Brak aktualnych danych → schemat gaśnie. Nie rysujemy przepływu,
   którego być może nie ma. */
#twin.aus { opacity: 0.32; }
#twin.aus .rohr { animation: none; stroke-dasharray: none; }

@media (prefers-reduced-motion: reduce) {
  #twin .rohr.stroemt, #twin .symbol.aktiv .fluegel { animation: none; }
}

/* --------------------------------------------------------------- Diagramm */
.tabs { display: flex; gap: 0.3rem; flex-wrap: wrap; }
.tabs button {
  background: var(--panel-2);
  color: var(--muted);
  border: 1px solid var(--linie);
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
}
.tabs button:hover { color: var(--text); }
.tabs button.aktiv {
  background: rgba(255, 216, 77, 0.14);
  border-color: rgba(255, 216, 77, 0.45);
  color: var(--akzent);
}

.legende {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0.85rem 0 0.5rem;
  font-size: 0.78rem;
  color: var(--muted);
}
.legende span { display: inline-flex; align-items: center; gap: 0.4rem; }
.legende i {
  width: 0.85rem; height: 0.2rem; border-radius: 2px; background: currentColor;
}

.chart-huelle { position: relative; width: 100%; }
#chart { width: 100%; height: 320px; display: block; }
#chart .achse { stroke: var(--linie); stroke-width: 1; }
#chart .gitter { stroke: #202a32; stroke-width: 1; }
#chart .achsentext { fill: var(--muted); font-size: 11px; font-family: inherit; }
#chart .reihe { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
#chart .cursor { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 3; }
#chart .leer { fill: var(--muted); font-size: 13px; font-family: inherit; text-anchor: middle; }

.tooltip {
  position: absolute;
  pointer-events: none;
  background: #0c1114;
  border: 1px solid var(--linie);
  border-radius: 8px;
  padding: 0.5rem 0.6rem;
  font-size: 0.78rem;
  white-space: nowrap;
  box-shadow: 0 6px 20px rgba(0,0,0,0.45);
  z-index: 5;
}
.tooltip b { display: block; color: var(--muted); font-weight: 500; margin-bottom: 0.25rem; }
.tooltip .tt-zeile { display: flex; gap: 0.5rem; justify-content: space-between; }

/* --------------------------------------------------------------- Timeline */
.timeline {
  display: flex;
  height: 2.4rem;
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel-2);
  border: 1px solid var(--linie);
}
.timeline .abschnitt { height: 100%; }
.timeline .leer {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.8rem;
}
.z0 { background: #3d4a55; }
.z1 { background: #4fc3f7; }
.z2 { background: #ff8a5c; }
.z3 { background: #8b9df0; }
.z4 { background: var(--akzent); }
.z9 { background: var(--bad); }

/* ---------------------------------------------------------------- Footer */
footer {
  border-top: 1px solid var(--linie);
  padding: 1.4rem 1.2rem 2rem;
  text-align: center;
}
footer nav { margin: 0.5rem 0; font-size: 0.85rem; }
footer a { color: var(--muted); }
footer a:hover { color: var(--akzent); }

/* --------------------------------------------------------- Rechtstexte */
.rechtstext {
  max-width: 46rem;
  margin: 0 auto;
  padding: 1.5rem 1.2rem 3rem;
  display: block;
}
.rechtstext h2 { font-size: 1rem; letter-spacing: 0; text-transform: none; color: var(--text); margin-top: 1.8rem; }
.rechtstext h3 { font-size: 0.9rem; color: var(--text); margin-bottom: 0.3rem; }
.rechtstext p, .rechtstext li { font-size: 0.92rem; }
.rechtstext .platzhalter {
  color: var(--warn);
  background: rgba(240, 165, 0, 0.1);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

/* ------------------------------------------------------------ Responsive */
@media (max-width: 860px) {
  main { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .kopf-inner { padding: 1.2rem 0.9rem 1rem; }
  main { padding: 0.9rem 0.9rem 2rem; }
  .karte { padding: 0.9rem; }
  #chart { height: 250px; }
  .ebene { font-size: 0.72rem; padding: 0.35rem 0.6rem; }
}