:root {
  --bg: #0b0e14;
  --bg-panel: #11151d;
  --bg-rack: #161b26;
  --border: #262d3a;
  --text: #e6e9f0;
  --text-dim: #8a93a6;
  --accent: #38bdf8;
  --ok: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --unknown: #64748b;
  --info: #60a5fa;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: radial-gradient(circle at top, #141a26 0%, var(--bg) 60%);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

.page {
  max-width: 1300px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.topbar-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.topbar h1 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.2px;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.dot-legend {
  display: flex;
  gap: 14px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.led {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--unknown);
}

.led.ok { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.led.warn { background: var(--warn); box-shadow: 0 0 6px var(--warn); }
.led.bad { background: var(--bad); box-shadow: 0 0 8px var(--bad); animation: pulse 1.4s infinite; }
.led.unknown { background: var(--unknown); }
.led.info { background: var(--info); box-shadow: 0 0 6px var(--info); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.content {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.rack-wrap {
  flex: 0 0 auto;
}

.rack-frame {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: linear-gradient(180deg, #1b212e, #12151d);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 0;
  box-shadow: 0 20px 50px -20px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(255,255,255,0.02);
}

.rack-rail {
  width: 26px;
  display: grid;
  grid-template-rows: repeat(var(--units), minmax(30px, 1fr));
  gap: 3px;
  padding: 0 4px;
}

.u-number {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.62rem;
  font-family: "Consolas", monospace;
  color: #4b5468;
  position: relative;
}

.u-number::before {
  content: "";
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #2a3142;
  top: 2px;
}

.rack {
  width: 540px;
  display: grid;
  grid-template-rows: repeat(var(--units), minmax(30px, 1fr));
  gap: 3px;
  background:
    repeating-linear-gradient(180deg, rgba(255,255,255,0.015) 0px, rgba(255,255,255,0.015) 1px, transparent 1px, transparent 30px),
    var(--bg-rack);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px;
}

.u-slot.empty {
  border: 1px dashed #232a38;
  border-radius: 4px;
  background: repeating-linear-gradient(45deg, transparent, transparent 6px, rgba(255,255,255,0.015) 6px, rgba(255,255,255,0.015) 7px);
}

.device {
  --accent: #38bdf8;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 6px 12px;
  background: linear-gradient(180deg, #1d2432, #171d29);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 5px;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
  position: relative;
}

.device.compact {
  flex-direction: row;
  align-items: center;
}

.device-header {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.device:hover {
  transform: translateX(2px);
  border-color: var(--accent);
  box-shadow: 0 4px 16px -6px var(--accent);
}

.device::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 40%);
  pointer-events: none;
}

.device-icon {
  width: 20px;
  height: 20px;
  flex: none;
  color: var(--accent);
  display: flex;
}

.device-icon svg { width: 100%; height: 100%; }

.device-name {
  font-weight: 600;
  font-size: 0.86rem;
  flex: none;
  white-space: nowrap;
}

.device-led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--unknown);
  flex: none;
  margin-left: 2px;
}

.device-led.ok { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.device-led.warn { background: var(--warn); box-shadow: 0 0 6px var(--warn); }
.device-led.bad { background: var(--bad); box-shadow: 0 0 8px var(--bad); animation: pulse 1.4s infinite; }
.device-led.info { background: var(--info); box-shadow: 0 0 6px var(--info); }

.device-stats {
  display: flex;
  gap: 12px;
  font-size: 0.74rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  padding-left: 30px;
}

.device-stats span {
  overflow: hidden;
  text-overflow: ellipsis;
  flex: none;
}

.device-stats b { color: var(--text); font-weight: 600; }

.detail-panel {
  flex: 1 1 520px;
  min-width: 480px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  position: sticky;
  top: 20px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}

.detail-panel .hint {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.detail-panel h2 {
  margin: 0 0 4px;
  font-size: 1.05rem;
}

.detail-type {
  color: var(--text-dim);
  font-size: 0.78rem;
  margin: 0 0 14px;
  letter-spacing: 0.4px;
}

.detail-fields {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.detail-fields li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.83rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 5px;
}

.detail-fields li span { color: var(--text-dim); white-space: nowrap; }
.detail-fields li b { font-weight: 600; text-align: right; }

.detail-subhead {
  margin: 12px 0 8px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
}

.disk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(78px, 1fr));
  gap: 6px;
}

.disk-chip {
  border: 1px solid var(--border);
  border-left: 3px solid var(--ok);
  border-radius: 6px;
  padding: 5px 7px;
  background: #161c28;
  min-width: 0;
}

.disk-chip.bad { border-left-color: var(--bad); }
.disk-chip.warn { border-left-color: var(--warn); }
.disk-chip.warn .disk-chip-value { color: var(--warn); font-weight: 600; }

.disk-chip-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 2px;
}

.disk-id {
  font-weight: 600;
  font-size: 0.8rem;
  font-family: "Consolas", monospace;
}

.disk-type {
  font-size: 0.62rem;
  color: var(--text-dim);
  letter-spacing: 0.4px;
}

.disk-chip-value {
  font-size: 0.72rem;
  color: var(--text-dim);
}

.disk-chip.bad .disk-chip-value { color: var(--bad); font-weight: 600; }

@media (max-width: 720px) {
  .rack { width: 100%; }
  .rack-wrap { width: 100%; }
  .content { flex-direction: column; align-items: stretch; }
  .detail-panel {
    position: static;
    width: 100%;
    min-width: 0;
    flex-basis: auto;
    max-height: none;
    overflow-y: visible;
  }
}

@media (max-width: 600px) {
  .page { padding: 16px 12px 40px; }

  .topbar { margin-bottom: 18px; gap: 8px; }
  .topbar h1 { font-size: 1.05rem; }
  .topbar-meta { gap: 8px 14px; font-size: 0.7rem; }
  .dot-legend { gap: 8px; flex-wrap: wrap; row-gap: 4px; }

  .rack-frame { padding: 10px 0; }
  .rack-rail { width: 20px; padding: 0 2px; }
  .u-number { font-size: 0.52rem; }
  .rack { padding: 3px; gap: 2px; }

  .device { padding: 5px 8px; }
  .device-icon { width: 17px; height: 17px; }
  .device-name { font-size: 0.78rem; }
  .device-stats { padding-left: 22px; font-size: 0.68rem; gap: 8px; }

  .detail-panel { padding: 14px; }
  .detail-panel h2 { font-size: 0.98rem; }
  .detail-fields li { font-size: 0.8rem; gap: 10px; }

  .disk-grid { grid-template-columns: repeat(auto-fill, minmax(68px, 1fr)); gap: 5px; }
}

@media (max-width: 480px) {
  /* Ohne Schienen gibt's kein U-Zeilen-Ausrichtungsproblem mehr zu beachten,
     darum duerfen Gerate-Werte hier frei umbrechen statt abgeschnitten zu werden. */
  .rack-rail { display: none; }
  .device-stats {
    white-space: normal;
    flex-wrap: wrap;
    overflow: visible;
    text-overflow: clip;
    row-gap: 2px;
  }
}