:root {
  --bg: #1a1d20;
  --card: #212529;
  --card-head: #495057;
  --line: #343a40;
  --text: #dee2e6;
  --muted: #adb5bd;
  --blue: #0d6efd;
  --cyan: #0dcaf0;
  --green: #198754;
  --red: #dc3545;
  --amber: #fd7e14;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
}

.wrap { max-width: 1900px; margin: 0 auto; padding: 18px 20px 40px; }

h1 {
  font-size: 2.1rem;
  font-weight: 400;
  margin: 6px 0 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pulse {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(25, 135, 84, .25);
  transition: background .2s, box-shadow .2s;
}
.pulse.dead { background: var(--red); box-shadow: 0 0 0 4px rgba(220, 53, 69, .25); }
.pulse.beat { animation: beat .6s ease-out; }
@keyframes beat {
  0% { transform: scale(1); } 40% { transform: scale(1.45); } 100% { transform: scale(1); }
}

/* Kopf-Kacheln */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}
.tile {
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: var(--card);
}
.tile-head {
  background: var(--blue);
  color: #fff;
  padding: 8px 14px;
  font-size: .95rem;
}
.tile-body {
  padding: 16px;
  text-align: center;
  font-size: 2.1rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tile-body .unit { font-size: 1.1rem; color: var(--muted); margin-left: 8px; font-weight: 400; }

.bar { height: 6px; background: var(--line); }
.bar-fill { height: 100%; width: 0; background: var(--cyan); transition: width .6s; }

/* Statusleiste */
.statusbar {
  border-radius: 6px;
  padding: 10px 16px;
  margin-bottom: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  font-size: .9rem;
  transition: background .3s;
}
.statusbar.online { background: var(--green); }
.statusbar.warn { background: var(--amber); }
.statusbar.offline { background: var(--red); }
.status-left { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; }
.dev-name { font-weight: 600; font-size: 1rem; }
.dev-item b { font-weight: 600; }
.status-right { display: flex; flex-wrap: wrap; gap: 6px; }

.chip {
  background: rgba(0, 0, 0, .28);
  border-radius: 4px;
  padding: 3px 9px;
  font-size: .78rem;
  letter-spacing: .02em;
}
.chip.on { background: rgba(255, 255, 255, .28); font-weight: 600; }

/* Kamera + Seitenspalte */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(300px, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 14px;
}
.side { display: grid; gap: 14px; }

.cam-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.btn {
  background: rgba(0, 0, 0, .3);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 4px;
  padding: 3px 12px;
  font: inherit;
  font-size: .82rem;
  cursor: pointer;
}
.btn:hover { background: rgba(0, 0, 0, .45); }

.cam-box {
  position: relative;
  aspect-ratio: 16 / 9;
  max-width: 100%;
  background: #000;
}
.cam-box img { display: block; width: 100%; height: 100%; object-fit: contain; }
.cam-msg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 1rem;
  text-align: center;
  padding: 20px;
  background: rgba(0, 0, 0, .55);
}
.cam-msg[hidden] { display: none; }

/* Karten */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  align-items: start;
  gap: 14px;
  margin-bottom: 18px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}
.card.cyan { border-color: var(--cyan); }
.card-head {
  padding: 8px 14px;
  background: var(--card-head);
  font-weight: 600;
  font-size: .95rem;
}
.card.cyan .card-head { background: var(--cyan); color: #05252c; }

.card-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 8px 14px;
  border-top: 1px solid var(--line);
}
.card-row:first-child { border-top: none; }
.card-row .lbl { font-weight: 600; font-size: .9rem; }
.card-row .val {
  font-variant-numeric: tabular-nums;
  text-align: right;
  overflow-wrap: anywhere;
}
.card-row .val .u { color: var(--muted); margin-left: 6px; font-size: .85rem; }
.card-row.muted .val { color: var(--muted); }

.tray { align-items: center; }
.tray .lbl { display: flex; align-items: center; gap: 10px; }
.swatch {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .35);
  flex: none;
}
.tray.active { background: rgba(13, 202, 240, .12); }
.tag { color: var(--cyan); font-size: .78rem; margin-left: 6px; }

/* Aufklappbereiche */
.panels { margin-bottom: 16px; }
.panels[hidden] { display: none; }
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.panel > summary {
  padding: 12px 16px;
  cursor: pointer;
  font-size: .95rem;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel > summary::-webkit-details-marker { display: none; }
.panel > summary::after { content: "⌄"; margin-left: auto; color: var(--muted); }
.panel[open] > summary::after { content: "⌃"; }
.ico { color: var(--muted); }

.sysgrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 0 24px;
  padding: 4px 16px 14px;
}
.sysgrid .card-row { padding: 7px 0; }

.foot { color: var(--muted); font-size: .8rem; text-align: center; margin-top: 20px; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .wrap { padding-inline: 16px; }
  .tile-body { font-size: 1.7rem; }
  h1 { font-size: 1.6rem; }
}