:root {
  --bg: #07111f;
  --surface: #0d1b2e;
  --surface-2: #10243d;
  --surface-3: #142b49;
  --line: #1f3a5a;
  --text: #e8eef7;
  --muted: #93a7bd;
  --faint: #637a94;
  --online: #22c55e;
  --warning: #f6c445;
  --critical: #ef4444;
  --offline: #8b98a7;
  --accent: #38bdf8;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  background:
    linear-gradient(135deg, rgba(56, 189, 248, 0.08), transparent 38%),
    radial-gradient(circle at 70% 0%, rgba(34, 197, 94, 0.08), transparent 28%),
    var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 100vh;
  padding: 16px 12px;
  background: rgba(8, 19, 33, 0.94);
  border-right: 1px solid var(--line);
  overflow: visible;
}

.brand {
  display: grid;
  place-items: center;
  min-height: 72px;
  padding: 8px 6px;
  border: 1px solid rgba(56, 189, 248, 0.32);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(16, 36, 61, 0.96), rgba(8, 19, 33, 0.96));
}

.brand > div {
  display: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(56, 189, 248, 0.42);
  border-radius: 8px;
  background: #092035;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
}

.brand-logo {
  width: 56px;
  height: 44px;
  flex: 0 0 56px;
  object-fit: contain;
  object-position: center;
}

.brand-kicker,
.eyebrow {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.brand h1,
.topbar h2,
.panel h3 {
  margin: 0;
}

.brand h1 {
  max-width: 138px;
  font-size: 16px;
  line-height: 1.25;
}

.nav-menu {
  display: grid;
  gap: 10px;
  margin-top: 0;
}

.nav-link {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 48px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0;
  font-weight: 700;
  font-family: inherit;
  text-align: center;
}

.nav-link::before {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(31, 58, 90, 0.42);
  color: currentColor;
  font-size: 16px;
  font-weight: 900;
  line-height: 1;
}

.nav-link:nth-child(1)::before {
  content: "⌂";
}

.nav-link:nth-child(2)::before {
  content: "▦";
}

.nav-link:nth-child(3)::before {
  content: "≋";
}

.nav-link:nth-child(4)::before {
  content: "!";
}

.nav-link:nth-child(5)::before {
  content: "⚙";
}

.nav-link:nth-child(6)::before {
  content: "↪";
}

.nav-link::after {
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  z-index: 1000;
  min-width: max-content;
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
  content: "";
  font-size: 12px;
  font-weight: 800;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateX(-4px);
  transition: opacity 0.14s ease, transform 0.14s ease;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.34);
}

.nav-link:hover::after {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

.nav-link:nth-child(1)::after {
  content: "Dashboard";
}

.nav-link:nth-child(2)::after {
  content: "Devices";
}

.nav-link:nth-child(3)::after {
  content: "Log";
}

.nav-link:nth-child(4)::after {
  content: "Events";
}

.nav-link:nth-child(5)::after {
  content: "Admin";
}

.nav-link:nth-child(6)::after {
  content: "Logout";
}

.nav-menu .nav-link:nth-child(1)::before {
  content: "D";
}

.nav-menu .nav-link:nth-child(2)::before {
  content: "N";
}

.nav-menu .nav-link:nth-child(3)::before {
  content: "L";
}

.nav-menu .nav-link:nth-child(4)::before {
  content: "!";
}

.nav-menu .nav-link:nth-child(5)::before {
  content: "A";
}

.nav-menu .nav-link:nth-child(6)::before {
  content: "X";
}

.nav-link:hover,
.nav-link.active {
  border-color: var(--line);
  background: var(--surface-2);
  color: var(--text);
}

.nav-link:hover::before,
.nav-link.active::before {
  background: rgba(56, 189, 248, 0.16);
  color: var(--accent);
}

.nav-button {
  margin-top: 12px;
}

.main-content {
  min-width: 0;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 27, 46, 0.88);
  box-shadow: var(--shadow);
}

.topbar h2 {
  font-size: 28px;
}

.topbar-title {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.topbar-title > div {
  min-width: 0;
}

.topbar-logo {
  width: 58px;
  height: 46px;
  flex: 0 0 58px;
  object-fit: contain;
  object-position: center;
  padding: 5px;
  border: 1px solid rgba(56, 189, 248, 0.32);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(16, 36, 61, 0.98), rgba(8, 19, 33, 0.98));
}

.topbar-status {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.clock,
.system-state,
.log-range-select,
.log-range-input {
  min-height: 40px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.log-range-select {
  outline: none;
}

.log-range-input {
  max-width: 190px;
  outline: none;
}

.log-filter-button {
  min-width: 72px;
}

.system-state {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--offline);
}

.status-dot.online {
  background: var(--online);
  box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.12);
}

.status-dot.warning {
  background: var(--warning);
  box-shadow: 0 0 0 5px rgba(246, 196, 69, 0.14);
}

.status-dot.critical {
  background: var(--critical);
  box-shadow: 0 0 0 5px rgba(239, 68, 68, 0.14);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.kpi-card,
.panel,
.device-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 27, 46, 0.9);
}

.kpi-card {
  padding: 18px;
}

.kpi-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.kpi-value {
  display: block;
  margin-top: 10px;
  font-size: 34px;
  font-weight: 800;
}

.text-online {
  color: var(--online);
}

.text-warning {
  color: var(--warning);
}

.text-critical {
  color: var(--critical);
}

.room-overview {
  margin: 18px 0;
}

.room-card {
  position: relative;
  overflow: hidden;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(56, 189, 248, 0.16), transparent 42%),
    linear-gradient(180deg, rgba(16, 36, 61, 0.96), rgba(13, 27, 46, 0.96));
  box-shadow: var(--shadow);
}

.room-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-left: 5px solid var(--offline);
}

.room-card.status-online-room::before {
  border-left-color: var(--online);
}

.room-card.status-warning-room::before {
  border-left-color: var(--warning);
}

.room-card.status-critical-room::before {
  border-left-color: var(--critical);
}

.room-card-main {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
}

.room-card h3 {
  margin: 0;
  font-size: 24px;
}

.room-temp {
  min-width: 190px;
  color: var(--text);
  font-size: 58px;
  font-weight: 900;
  line-height: 1;
  text-align: right;
}

.room-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.room-details {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.room-details > div {
  min-height: 70px;
  padding: 12px;
  border: 1px solid rgba(31, 58, 90, 0.82);
  border-radius: 8px;
  background: rgba(7, 17, 31, 0.42);
}

.room-detail-label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.room-details strong {
  font-size: 15px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 18px;
}

.panel {
  min-width: 0;
  padding: 18px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.panel h3 {
  font-size: 20px;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.devices-panel > .device-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 16px;
}

.devices-panel > .device-grid .room-device-group {
  grid-column: auto;
}

.location-group {
  display: grid;
  gap: 12px;
  grid-column: 1 / -1;
}

.location-group + .location-group {
  margin-top: 8px;
}

.location-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(31, 58, 90, 0.78);
}

.location-group-header h4 {
  margin: 0;
  font-size: 16px;
}

.location-group-header span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.room-device-group {
  display: grid;
  gap: 8px;
  grid-column: 1 / -1;
  min-width: 0;
  padding: 10px;
  border: 1px solid rgba(56, 189, 248, 0.28);
  border-radius: 8px;
  background: rgba(7, 17, 31, 0.32);
}

.room-device-group + .room-device-group {
  margin-top: 0;
}

.room-device-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
}

.room-device-header h4 {
  margin: 0;
  font-size: 15px;
  text-transform: uppercase;
}

.room-device-header span,
.rack-device-header span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.rack-group-list {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-color: rgba(56, 189, 248, 0.42) rgba(13, 27, 46, 0.82);
  scrollbar-width: thin;
}

.rack-group-list::-webkit-scrollbar,
.config-rack-grid::-webkit-scrollbar {
  height: 8px;
}

.rack-group-list::-webkit-scrollbar-track,
.config-rack-grid::-webkit-scrollbar-track {
  border: 1px solid rgba(31, 58, 90, 0.72);
  border-radius: 999px;
  background: rgba(13, 27, 46, 0.82);
}

.rack-group-list::-webkit-scrollbar-thumb,
.config-rack-grid::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.42), rgba(34, 197, 94, 0.34));
}

.rack-group-list::-webkit-scrollbar-thumb:hover,
.config-rack-grid::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.68), rgba(34, 197, 94, 0.52));
}

.rack-device-group {
  display: grid;
  align-self: flex-start;
  flex: 1 1 260px;
  gap: 6px;
  min-width: 240px;
  max-width: 360px;
  padding: 8px;
  border: 1px solid rgba(31, 58, 90, 0.86);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: rgba(13, 27, 46, 0.72);
}

.rack-device-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 24px;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(31, 58, 90, 0.72);
}

.rack-device-header h5 {
  margin: 0;
  color: var(--text);
  font-size: 12px;
  text-transform: uppercase;
}

.rack-device-group .device-grid {
  grid-template-columns: 1fr;
  gap: 6px;
}

.device-card {
  display: grid;
  gap: 14px;
  padding: 16px;
  background: linear-gradient(180deg, rgba(20, 43, 73, 0.84), rgba(13, 27, 46, 0.94));
}

.device-summary-card {
  min-height: 0;
  padding: 8px;
  gap: 7px;
  transition: border-color 0.16s ease, transform 0.16s ease;
}

.device-summary-card:hover {
  border-color: rgba(56, 189, 248, 0.58);
  transform: translateY(-1px);
}

.device-header {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: flex-start;
}

.device-header > div {
  min-width: 0;
}

.device-name {
  margin: 0 0 4px;
  font-size: 12px;
  line-height: 1.2;
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.device-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  color: var(--muted);
  font-size: 10px;
}

.device-summary-temp {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 22px;
  padding-top: 5px;
  border-top: 1px solid rgba(31, 58, 90, 0.78);
}

.device-summary-temp span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.device-summary-temp strong {
  font-size: 16px;
  line-height: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-height: 20px;
  padding: 3px 7px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
}

.status-online {
  background: rgba(34, 197, 94, 0.14);
  color: #86efac;
}

.status-warning {
  background: rgba(246, 196, 69, 0.16);
  color: #fde68a;
}

.status-critical {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
}

.status-offline {
  background: rgba(139, 152, 167, 0.16);
  color: #cbd5e1;
}

.metric-list {
  display: grid;
  gap: 8px;
}

.metric-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 32px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(31, 58, 90, 0.78);
  font-size: 14px;
}

.metric-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.metric-name {
  color: var(--muted);
}

.metric-value {
  font-weight: 800;
  text-align: right;
}

.topology-map {
  display: grid;
  gap: 12px;
}

.topology-node {
  position: relative;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
}

.topology-node.root {
  background: #0d2a3d;
  border-color: rgba(56, 189, 248, 0.44);
}

.topology-node.switch {
  background: #112f3a;
  border-color: rgba(34, 197, 94, 0.35);
}

.topology-node.child {
  margin-left: 22px;
}

.topology-node.child::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 50%;
  width: 22px;
  border-top: 1px solid var(--line);
}

.topology-children {
  display: grid;
  gap: 10px;
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.topology-title {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-weight: 800;
}

.topology-type {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.events-panel {
  margin-top: 18px;
}

.events-page-panel {
  margin-top: 18px;
}

.event-page-list {
  gap: 12px;
}

.event-page-item {
  align-items: center;
}

.event-page-item > div {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.event-page-item strong {
  color: var(--text);
  font-size: 14px;
  line-height: 1.35;
}

.log-chart-panel {
  min-height: 420px;
}

.log-category-section:first-child {
  margin-top: 0;
}

.log-chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 12px;
}

.log-chart-card {
  display: grid;
  gap: 12px;
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.log-chart-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.log-chart-header h4 {
  margin: 0 0 5px;
  font-size: 15px;
  line-height: 1.25;
}

.log-chart-header span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.log-chart-header strong {
  color: var(--text);
  font-size: 22px;
  line-height: 1;
  white-space: nowrap;
}

.log-chart-canvas {
  display: block;
  width: 100%;
  aspect-ratio: 2.7 / 1;
  border: 1px solid rgba(31, 58, 90, 0.82);
  border-radius: 8px;
  background: var(--surface);
}

.log-primary-section {
  margin-top: 0;
}

.log-chart-card-primary {
  margin-bottom: 18px;
}

.log-chart-card-primary .log-chart-canvas {
  aspect-ratio: 4 / 1;
}

.settings-panel {
  margin-top: 18px;
}

.devices-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.log-layout {
  align-items: start;
}

.device-picker-panel,
.device-detail-panel {
  align-self: start;
}

.device-picker-list {
  display: grid;
  gap: 10px;
}

.picker-location-group {
  display: grid;
  gap: 8px;
}

.picker-location-group + .picker-location-group {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(31, 58, 90, 0.78);
}

.picker-location-group h4 {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.device-picker-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 54px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-weight: 800;
}

.device-picker-item span:first-child {
  min-width: 0;
}

.device-picker-item:hover,
.device-picker-item.active {
  border-color: rgba(56, 189, 248, 0.58);
  background: var(--surface-2);
}

.log-device-button {
  width: 100%;
  border: 1px solid var(--line);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  text-align: left;
}

.device-detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.device-detail-header h3 {
  margin: 0 0 8px;
  font-size: 26px;
}

.detail-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.detail-summary-grid article {
  min-height: 80px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.detail-summary-grid span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.detail-summary-grid strong {
  font-size: 20px;
}

.detail-section {
  margin-top: 18px;
}

.detail-metric-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
}

.interface-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.interface-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 13px;
}

.interface-table th,
.interface-table td {
  padding: 11px 12px;
  border-bottom: 1px solid rgba(31, 58, 90, 0.78);
  text-align: left;
  white-space: nowrap;
}

.interface-table th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.interface-table tr:last-child td {
  border-bottom: 0;
}

.switch-front-panel {
  display: grid;
  grid-template-columns: repeat(12, minmax(42px, 1fr));
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.switch-port {
  display: grid;
  place-items: center;
  min-height: 42px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 6px;
  color: var(--text);
  background: rgba(100, 116, 139, 0.24);
  cursor: help;
  font: inherit;
  font-weight: 900;
}

.switch-port small {
  color: rgba(226, 232, 240, 0.78);
  font-size: 10px;
  font-weight: 800;
}

.switch-port.port-endpoint {
  background: rgba(34, 197, 94, 0.28);
  border-color: rgba(34, 197, 94, 0.58);
}

.switch-port.port-uplink {
  background: rgba(59, 130, 246, 0.32);
  border-color: rgba(96, 165, 250, 0.7);
}

.switch-port.port-unknown {
  background: rgba(245, 158, 11, 0.28);
  border-color: rgba(245, 158, 11, 0.62);
}

.switch-port.port-down {
  background: rgba(100, 116, 139, 0.18);
  border-color: rgba(100, 116, 139, 0.36);
  color: var(--muted);
}

.switch-port.port-error {
  background: rgba(239, 68, 68, 0.3);
  border-color: rgba(248, 113, 113, 0.72);
}

.connection-badge {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.connection-endpoint,
.connection-multi-endpoint {
  background: rgba(34, 197, 94, 0.16);
  color: #86efac;
}

.connection-uplink {
  background: rgba(59, 130, 246, 0.18);
  color: #93c5fd;
}

.connection-unknown {
  background: rgba(245, 158, 11, 0.18);
  color: #fcd34d;
}

.connection-down {
  background: rgba(100, 116, 139, 0.2);
  color: var(--muted);
}

.connection-error {
  background: rgba(239, 68, 68, 0.18);
  color: #fca5a5;
}

.detected-uplinks {
  display: grid;
  gap: 6px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.event-list {
  display: grid;
  gap: 10px;
}

.event-item {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
}

.empty-state {
  padding: 18px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
}

.device-form {
  display: grid;
  gap: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.field span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.field input,
.field select {
  width: 100%;
  min-height: 42px;
  padding: 10px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  outline: none;
}

.field input:focus,
.field select:focus {
  border-color: rgba(56, 189, 248, 0.8);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.form-note {
  margin: 0;
  color: var(--faint);
  font-size: 13px;
}

.primary-button,
.secondary-button,
.danger-button {
  min-height: 40px;
  padding: 9px 13px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
}

.primary-button {
  background: #0f6e9d;
  border-color: rgba(56, 189, 248, 0.45);
}

.primary-button:hover {
  background: #1280b5;
}

.secondary-button {
  background: var(--surface-2);
  border-color: var(--line);
}

.secondary-button:hover {
  background: var(--surface-3);
}

.danger-button {
  background: rgba(239, 68, 68, 0.14);
  border-color: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.danger-button:hover {
  background: rgba(239, 68, 68, 0.2);
}

.config-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.config-order-toolbar,
.config-room-header,
.config-rack-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.config-order-toolbar {
  min-height: 42px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.config-room-group {
  display: grid;
  gap: 10px;
  padding: 10px;
  border: 1px solid rgba(56, 189, 248, 0.28);
  border-radius: 8px;
  background: rgba(7, 17, 31, 0.32);
}

.config-room-header {
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
}

.config-room-header h4,
.config-rack-header h5 {
  margin: 0;
  text-transform: uppercase;
}

.config-room-header h4 {
  font-size: 15px;
}

.config-room-header span,
.config-rack-header span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.config-rack-grid {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-color: rgba(56, 189, 248, 0.42) rgba(13, 27, 46, 0.82);
  scrollbar-width: thin;
}

.config-rack-group {
  display: grid;
  align-self: flex-start;
  flex: 1 1 320px;
  gap: 8px;
  min-width: 300px;
  max-width: 460px;
  padding: 8px;
  border: 1px solid rgba(31, 58, 90, 0.86);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: rgba(13, 27, 46, 0.72);
}

.config-rack-header {
  min-height: 24px;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(31, 58, 90, 0.72);
}

.config-rack-header h5 {
  font-size: 12px;
}

.config-rack-list {
  display: grid;
  gap: 7px;
  min-height: 18px;
}

.config-item {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.config-item.dragging {
  opacity: 0.58;
  border-color: rgba(56, 189, 248, 0.72);
}

.config-drag-handle {
  display: grid;
  place-items: center;
  min-height: 32px;
  color: var(--faint);
  cursor: grab;
  font-size: 14px;
  font-weight: 800;
}

.config-title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 5px;
  font-weight: 800;
}

.config-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.config-secret {
  color: var(--faint);
}

.config-actions,
.button-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.login-page {
  display: grid;
  place-items: center;
}

.login-shell {
  width: min(460px, calc(100vw - 32px));
}

.login-panel {
  display: grid;
  gap: 24px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 27, 46, 0.94);
  box-shadow: var(--shadow);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.login-brand h1,
.login-form h2 {
  margin: 0;
}

.login-brand h1 {
  font-size: 18px;
}

.login-form {
  display: grid;
  gap: 16px;
}

.login-form .primary-button {
  width: 100%;
}

.login-error {
  padding: 12px;
  border: 1px solid rgba(239, 68, 68, 0.32);
  border-radius: 8px;
  background: rgba(239, 68, 68, 0.12);
  color: #fca5a5;
  font-size: 14px;
  font-weight: 700;
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .nav-menu {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    margin-top: 18px;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .devices-panel > .device-grid {
    grid-template-columns: 1fr;
  }

  .devices-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .main-content,
  .sidebar {
    padding: 16px;
  }

  .sidebar {
    padding: 8px 10px;
  }

  .nav-menu {
    grid-template-columns: repeat(6, 42px);
    justify-content: center;
    gap: 8px;
    margin-top: 0;
  }

  .nav-link {
    min-height: 42px;
  }

  .nav-link::before {
    width: 30px;
    height: 30px;
    font-size: 14px;
  }

  .nav-link::after {
    display: none;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar h2 {
    font-size: 24px;
  }

  .topbar-status {
    justify-content: flex-start;
    width: 100%;
  }

  .clock,
  .system-state {
    flex: 1 1 180px;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .room-card-main {
    flex-direction: column;
  }

  .room-temp {
    min-width: 0;
    font-size: 48px;
    text-align: left;
  }

  .room-details {
    grid-template-columns: 1fr;
  }

  .detail-summary-grid,
  .detail-metric-list {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-menu {
    grid-template-columns: repeat(6, 42px);
  }
}

@media (max-width: 460px) {
  .device-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .kpi-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
  }

  .kpi-card {
    min-height: 86px;
    padding: 10px 8px;
  }

  .kpi-label {
    font-size: 11px;
    line-height: 1.2;
  }

  .kpi-value {
    margin-top: 8px;
    font-size: 28px;
  }

  .nav-menu {
    grid-template-columns: repeat(6, 40px);
    align-items: center;
    justify-content: center;
    gap: 6px;
  }

  .nav-link {
    width: 40px;
    height: 40px;
    min-height: 40px;
  }

  .nav-link::before {
    width: 28px;
    height: 28px;
    font-size: 13px;
  }

  .device-header,
  .event-item,
  .form-actions,
  .config-item {
    flex-direction: column;
  }

  .form-actions {
    align-items: stretch;
  }

  .config-item {
    display: flex;
    align-items: stretch;
  }
}