/* ── Overview: System Summary Cards ── */
.sys-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}
.sys-card {
  background: var(--bg-card);
  border: 1px solid var(--brd);
  border-radius: var(--r);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
}
.sys-card:hover {
  border-color: var(--brd-h);
  box-shadow: var(--glow);
}
.sys-card-icon {
  font-size: 24px;
  line-height: 1;
}
.sys-card-content {
  flex: 1;
  min-width: 0;
}
.sys-card-val {
  font-size: 20px;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  color: var(--blue);
}
.sys-card-lbl {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--txt3);
  margin-top: 2px;
}

/* ── Overview: Devices Grid & Cards ── */
.dev-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.dev {
  padding: 14px;
  background: var(--bg-card);
  border: 1px solid var(--brd);
  border-radius: var(--r);
  transition: all 0.3s;
  position: relative;
}
.dev:hover {
  border-color: var(--brd-h);
  box-shadow: var(--glow);
}
.dev.on { border-left: 3px solid var(--green); }
.dev.off { border-left: 3px solid var(--txt3); opacity: 0.55; }
.dev-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}
.dev-name {
  font-weight: 600;
  font-size: 13px;
  color: var(--txt);
}
.dev-st {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 500;
}
.dev-st.on { background: rgba(52, 211, 153, 0.12); color: var(--green); }
.dev-st.off { background: rgba(100, 116, 139, 0.12); color: var(--txt3); }
.dev-info {
  font-size: 11px;
  color: var(--txt2);
  line-height: 1.8;
}
.dev-info code {
  font-family: 'JetBrains Mono', monospace;
  color: var(--txt);
  font-size: 10px;
  background: rgba(0, 0, 0, 0.25);
  padding: 1px 4px;
  border-radius: 3px;
}
.dev-empty {
  color: var(--txt3);
  font-size: 12px;
  padding: 24px;
  text-align: center;
  grid-column: 1 / -1;
  background: rgba(0, 0, 0, 0.15);
  border: 1px dashed var(--brd);
  border-radius: var(--r);
}
.dev.flash { animation: devflash 0.8s ease-out; }
@keyframes devflash {
  0% { border-color: var(--cyan); box-shadow: 0 0 12px rgba(34, 211, 238, 0.2); }
  100% { border-color: var(--brd); box-shadow: none; }
}

/* ── Overview: Network Discovery ── */
.scan-status {
  font-size: 11px;
  color: var(--txt2);
  font-family: 'JetBrains Mono', monospace;
}
.scan-status.scanning {
  color: var(--cyan);
  animation: pulse-status 1.5s infinite;
}
@keyframes pulse-status {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ── Responsive Overview Breakpoints ── */
@media (max-width: 1024px) {
  .sys-summary-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .sys-summary-grid { grid-template-columns: 1fr; gap: 8px; margin-bottom: 14px; }
  .dev-grid { grid-template-columns: 1fr; }
}

.dev-badge-kpp {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(168, 85, 247, 0.25);
  color: #d8b4fe;
  border: 1px solid rgba(168, 85, 247, 0.4);
  margin-left: 6px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  box-shadow: 0 0 6px rgba(168, 85, 247, 0.2);
}

/* ── Overview: Custom Device Sub-Tabs ── */
.overview-tabs-wrap {
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.overview-tabs-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}
.overview-tabs-bar::-webkit-scrollbar {
  height: 4px;
}
.overview-tabs-bar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
}
.overview-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--rs);
  background: rgba(17, 24, 39, 0.6);
  border: 1px solid var(--brd);
  color: var(--txt2);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  transition: all 0.18s ease;
  position: relative;
}
.overview-tab:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--brd-h);
  color: var(--txt);
}
.overview-tab.active {
  background: rgba(56, 189, 248, 0.14);
  border-color: rgba(56, 189, 248, 0.45);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.12);
}
.otab-count {
  font-size: 9px;
  font-family: 'JetBrains Mono', monospace;
  padding: 1px 5px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.3);
  color: var(--txt3);
}
.overview-tab.active .otab-count {
  background: rgba(56, 189, 248, 0.25);
  color: var(--cyan);
}
.overview-tab-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  border-radius: var(--rs);
  background: transparent;
  border: 1px dashed var(--brd);
  color: var(--txt3);
  font-size: 11px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.18s ease;
}
.overview-tab-add-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.08);
}

/* ── Overview: Active Tab Management Sub-Bar ── */
.overview-tab-actions-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(17, 24, 39, 0.5);
  border: 1px solid var(--brd);
  border-radius: var(--rs);
  font-size: 11px;
}
.otab-actions-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.otab-actions-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Overview: Device Type Badges ── */
.dev-type-badge {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  letter-spacing: 0.2px;
}
.type-master {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.4);
}
.type-rfid {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.4);
}
.type-relay {
  background: rgba(234, 179, 8, 0.15);
  color: #eab308;
  border: 1px solid rgba(234, 179, 8, 0.4);
}
.type-keypad {
  background: rgba(168, 85, 247, 0.15);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.4);
}
.type-signals {
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.4);
}
.type-counter {
  background: rgba(249, 115, 22, 0.15);
  color: #fb923c;
  border: 1px solid rgba(249, 115, 22, 0.4);
}
.type-led_strip {
  background: rgba(236, 72, 153, 0.15);
  color: #f472b6;
  border: 1px solid rgba(236, 72, 153, 0.4);
}
.type-repeater {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
  border: 1px solid rgba(99, 102, 241, 0.4);
}
.type-other {
  background: rgba(100, 116, 139, 0.15);
  color: #94a3b8;
  border: 1px solid rgba(100, 116, 139, 0.4);
}

/* ── Overview: Drag & Drop Card States ── */
.dev[draggable="true"] {
  cursor: grab;
}
.dev[draggable="true"]:active {
  cursor: grabbing;
}
.dev.dragging {
  opacity: 0.35;
  transform: scale(0.97);
  border: 1px dashed var(--cyan) !important;
}
.dev.drag-over {
  border-color: var(--cyan) !important;
  outline: 2px dashed var(--cyan);
  outline-offset: 2px;
  box-shadow: 0 0 16px rgba(34, 211, 238, 0.3);
}
.dev-drag-handle {
  cursor: grab;
  color: var(--txt3);
  font-size: 11px;
  padding: 0 3px;
  user-select: none;
  opacity: 0.5;
  transition: opacity 0.15s;
}
.dev:hover .dev-drag-handle {
  opacity: 1;
}

/* ── Modal: Device Tab Selector List ── */
.tab-device-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--rs);
  border: 1px solid var(--brd);
  background: rgba(0, 0, 0, 0.2);
  margin-bottom: 6px;
  cursor: pointer;
  transition: all 0.15s;
}
.tab-device-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--brd-h);
}
.tab-device-item.selected {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.35);
}