:root {
  --bg: #ffffff;
  --bg-subtle: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;
  --accent: #4a6fa5;
  --accent-hover: #3d5d8c;
  --accent-soft: #eef2f7;
  --success: #4d8f6a;
  --success-bg: #edf7f1;
  --danger: #c45c5c;
  --danger-bg: #fdf2f2;
  --warning-bg: #fef9ee;
  --radius: 10px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.07);
  --sidebar-w: 220px;
  --sidebar-w-min: 64px;
  --sidebar-w-max: 320px;
  --sidebar-collapse-at: 100px;
  --topbar-h: 60px;
}

.hidden { display: none !important; }

body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* —— Auth —— */
.auth-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--bg-subtle);
}
.auth-shell {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-md);
}
.auth-brand {
  text-align: center;
  margin-bottom: 1.5rem;
}
.auth-brand h1 {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
}
.auth-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}
#sign-in { width: 100%; display: flex; justify-content: center; }
.auth-error {
  color: var(--danger);
  font-size: 0.875rem;
  text-align: center;
  padding: 1rem;
}

/* —— App shell —— */
.app-frame {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  position: relative;
  background: var(--bg-subtle);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 1.25rem 0.75rem;
  gap: 1.5rem;
  min-width: 0;
  overflow: hidden;
}
.sidebar-resizer {
  position: absolute;
  top: 0;
  right: -3px;
  width: 6px;
  height: 100%;
  cursor: col-resize;
  z-index: 5;
  touch-action: none;
}
.sidebar-resizer::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 28px;
  margin: -14px 0 0 -1px;
  border-radius: 2px;
  background: transparent;
  transition: background 0.12s;
}
.sidebar-resizer:hover::after,
.app-frame.is-resizing-sidebar .sidebar-resizer::after {
  background: var(--border-strong);
}
.app-frame.is-resizing-sidebar {
  cursor: col-resize;
  user-select: none;
}
.app-frame.is-resizing-sidebar .sidebar-resizer {
  background: rgba(74, 111, 165, 0.08);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0 0.5rem;
  min-width: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-icon svg { width: 20px; height: 20px; }
.brand-copy {
  min-width: 0;
  overflow: hidden;
}
.brand-text {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  white-space: nowrap;
}
.brand-sub {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 400;
  white-space: nowrap;
}

.nav-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.nav-tab {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, color 0.15s;
  border-left: 3px solid transparent;
  min-width: 0;
}
.nav-tab svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}
.nav-tab span {
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
}
.nav-tab:hover {
  background: var(--surface);
  color: var(--text);
}
.nav-tab.active {
  background: var(--surface);
  color: var(--accent);
  border-left-color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.nav-tab.active svg { opacity: 1; }

/* Icons-only when dragged narrow */
.sidebar.is-collapsed {
  padding-left: 0.45rem;
  padding-right: 0.45rem;
  align-items: center;
}
.sidebar.is-collapsed .brand {
  justify-content: center;
  padding: 0;
}
.sidebar.is-collapsed .brand-copy,
.sidebar.is-collapsed .nav-tab span {
  display: none;
}
.sidebar.is-collapsed .nav-tabs {
  width: 100%;
  align-items: center;
}
.sidebar.is-collapsed .nav-tab {
  justify-content: center;
  padding: 0.7rem 0;
  border-left-width: 0;
  border-bottom: 3px solid transparent;
}
.sidebar.is-collapsed .nav-tab.active {
  border-left-color: transparent;
  border-bottom-color: var(--accent);
}

.sidebar-footer { display: none; }

/* Main column */
.main-column {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--bg);
  overflow: hidden;
}

.topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  gap: 1rem;
  flex-shrink: 0;
}
.topbar-title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.topbar-title span {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.85rem;
  margin-left: 0.5rem;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.chip svg { width: 14px; height: 14px; opacity: 0.65; }
.chip strong { color: var(--text); font-weight: 600; }

.mqtt-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.mqtt-status::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-subtle);
  flex-shrink: 0;
}
.mqtt-status.ok {
  background: var(--success-bg);
  border-color: #c8e6d4;
  color: var(--success);
}
.mqtt-status.ok::before {
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(77, 143, 106, 0.2);
}
.mqtt-status.err {
  background: var(--danger-bg);
  border-color: #f0c8c8;
  color: var(--danger);
}
.mqtt-status.err::before { background: var(--danger); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.btn svg { width: 15px; height: 15px; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

#user-button { display: flex; align-items: center; }

/* Content views */
.content {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.view { display: none; flex: 1; min-height: 0; }
.view.active { display: flex; flex-direction: column; }

/* Realtime — full-width map, optional right panel */
.view-realtime.active {
  flex: 1;
}

.realtime-stage {
  position: relative;
  display: flex;
  flex: 1;
  min-height: 0;
  min-width: 0;
}

.sensor-tip {
  position: absolute;
  z-index: 6;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, calc(-100% - 18px));
  transition: opacity 0.12s ease;
}
.sensor-tip.visible {
  opacity: 1;
  pointer-events: auto;
}
.sensor-tip-card {
  position: relative;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.5rem 0.6rem;
  box-shadow: var(--shadow-md);
  min-width: 130px;
  backdrop-filter: blur(8px);
}
.sensor-tip-card::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -6px;
  width: 10px;
  height: 10px;
  background: rgba(255, 255, 255, 0.98);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transform: translateX(-50%) rotate(45deg);
}
.sensor-tip-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  margin-bottom: 0.25rem;
}
.sensor-tip-row strong { flex: 1; color: var(--text); }
.sensor-tip-arrow { font-size: 0.65rem; }
.sensor-tip-speed {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}
.btn-tip-close {
  width: 20px;
  height: 20px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  border-radius: 4px;
}
.btn-tip-close:hover { background: var(--bg-subtle); }
.btn-tip-expand {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  width: 100%;
  justify-content: center;
  padding: 0.3rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-subtle);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 500;
  cursor: pointer;
}
.btn-tip-expand svg { width: 12px; height: 12px; }
.btn-tip-expand:hover { background: var(--accent-soft); }

.sensor-panel-expanded {
  width: 0;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-subtle);
  border-left: 0 solid var(--border);
  display: flex;
  flex-direction: column;
  transition: width 0.2s ease, border-width 0.2s ease;
}
.sensor-panel-expanded.open {
  width: 300px;
  border-left-width: 1px;
}
.sensor-panel-expanded-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
}
.sensor-panel-expanded-header h2 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.sensor-panel-expanded-header h2 svg { width: 14px; height: 14px; opacity: 0.7; }
#truck-detail {
  padding: 0.85rem;
  overflow-y: auto;
  flex: 1;
}

.truck-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem;
  box-shadow: var(--shadow-sm);
}
.truck-card-selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(74, 111, 165, 0.15), var(--shadow-sm);
}
.truck-arrow {
  font-size: 0.85rem;
  line-height: 1;
  flex-shrink: 0;
}
.btn-close {
  margin-left: auto;
  width: 26px;
  height: 26px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-close:hover {
  background: var(--surface);
  color: var(--text);
}


.truck-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border);
}
.truck-card h3 {
  font-size: 0.92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex: 1;
}
.truck-card-id { color: var(--text); }
.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.metric {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  padding: 0.45rem 0.5rem;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
}
.metric-icon {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--accent-soft);
  color: var(--accent);
}
.metric-icon svg { width: 12px; height: 12px; }
.metric-body { min-width: 0; }
.metric-label {
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-subtle);
}
.metric-value {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

/* History */
.view-history.active { gap: 0; }
.history-toolbar {
  padding: 1rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.85rem 1rem;
}
.history-toolbar-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.15rem;
}
.history-toolbar-head h2 {
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.history-toolbar-head h2 svg { width: 18px; height: 18px; color: var(--accent); }
.history-toolbar-head p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: auto;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.field label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.field label svg { width: 13px; height: 13px; opacity: 0.6; }
.field input {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  min-width: 10rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74, 111, 165, 0.12);
}
.history-status {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.35rem 0;
  flex: 1;
  min-width: 12rem;
}
.history-status.error { color: var(--danger); }

.history-truck-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.history-truck-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.82rem;
  cursor: pointer;
  user-select: none;
}
.history-truck-chip input { accent-color: var(--truck-color, var(--accent)); }
.history-truck-chip span::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--truck-color, var(--accent));
  margin-right: 0.25rem;
  vertical-align: middle;
}

.history-toolbar-head p { display: none; }

.auth-hint {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

.realtime-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.view-toggle button {
  border: 1px solid var(--border);
  background: var(--surface-2);
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
}
.view-toggle button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.fleet-filters { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.filter-chip {
  border: 1px solid var(--border);
  background: var(--surface-2);
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  border-radius: 999px;
  cursor: pointer;
}
.filter-chip.active { background: #fef2f2; border-color: var(--danger); color: var(--danger); }
.fleet-table-wrap { padding: 0.75rem; overflow: auto; }
.fleet-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.fleet-table th, .fleet-table td { padding: 0.5rem 0.65rem; border-bottom: 1px solid var(--border); text-align: left; }
.fleet-table tr { cursor: pointer; }
.fleet-table tr:hover { background: var(--surface-2); }
.fleet-table tr.status-alert td:nth-child(2) { color: var(--danger); font-weight: 600; }
.hidden { display: none !important; }

.admin-shell { padding: 1rem; max-width: 960px; }
.admin-shell.admin-geo-wide { max-width: none; }
.admin-tabs { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.admin-tab {
  border: 1px solid var(--border);
  background: var(--surface-2);
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  border-radius: 0.35rem;
}
.admin-tab.active { border-color: var(--accent); color: var(--accent); }
.admin-panel { display: none; }
.admin-panel.active { display: block; }
.admin-form { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.admin-form input, .admin-form select, .admin-form textarea { padding: 0.45rem 0.6rem; border: 1px solid var(--border); border-radius: 0.35rem; }
.admin-form-geofence textarea { flex: 1 1 100%; min-width: 280px; font-family: ui-monospace, monospace; font-size: 0.85rem; }
.admin-divider { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }
.admin-geo-list li { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.btn-sm { padding: 0.2rem 0.45rem; font-size: 0.8rem; }
.admin-geo-layout {
  display: grid;
  grid-template-columns: minmax(280px, 340px) 1fr;
  gap: 1rem;
  min-height: 520px;
}
.admin-geo-sidebar { overflow: auto; max-height: calc(100vh - 180px); }
.admin-geo-map-wrap {
  position: relative;
  min-height: 480px;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
}
.admin-geo-map {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.admin-geo-draw-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
@media (max-width: 900px) {
  .admin-geo-layout { grid-template-columns: 1fr; }
  .admin-geo-map-wrap { min-height: 360px; }
}
.admin-user-card { border: 1px solid var(--border); border-radius: 0.5rem; padding: 0.75rem; margin-bottom: 0.75rem; }
.admin-user-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.admin-truck-chips { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.chip-toggle {
  border: 1px solid var(--border);
  background: var(--surface-2);
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  border-radius: 999px;
  cursor: pointer;
}
.chip-toggle.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.admin-invite-row { display: flex; gap: 0.75rem; align-items: center; padding: 0.35rem 0; }
.muted { color: var(--text-muted); font-size: 0.85rem; }
.error { color: var(--danger); }

.admin-hint { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.admin-empty-fleet .admin-steps { font-size: 0.85rem; color: var(--text-muted); margin: 0.5rem 0 0 1.25rem; }
.admin-empty-fleet .admin-steps li { margin-bottom: 0.35rem; }
.dnd-pool { margin-bottom: 1rem; padding: 0.75rem; border: 1px dashed var(--border); border-radius: 0.5rem; background: var(--surface-2); }
.dnd-pool h3 { font-size: 0.8rem; margin: 0 0 0.5rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.dnd-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; min-height: 2rem; }
.dnd-chip {
  display: inline-flex; align-items: center; gap: 0.25rem;
  border: 1px solid var(--border); background: #fff; padding: 0.3rem 0.55rem;
  font-size: 0.8rem; border-radius: 999px; cursor: grab; user-select: none;
}
.dnd-chip.assigned { background: var(--accent); color: #fff; border-color: var(--accent); }
.dnd-chip.dragging { opacity: 0.5; }
.dnd-drop {
  min-height: 2.5rem; padding: 0.5rem; border: 2px dashed var(--border);
  border-radius: 0.5rem; display: flex; flex-wrap: wrap; gap: 0.35rem; align-items: center;
  transition: border-color 0.15s, background 0.15s;
}
.dnd-drop.drag-over { border-color: var(--accent); background: rgba(74, 111, 165, 0.08); }
.dnd-placeholder { color: var(--text-muted); font-size: 0.8rem; font-style: italic; }
.dnd-remove { border: none; background: transparent; color: inherit; cursor: pointer; font-size: 1rem; line-height: 1; padding: 0 0.15rem; }
.admin-list { margin: 0; padding-left: 1.2rem; }
.fleet-empty-banner {
  margin: 0.5rem 0.75rem; padding: 0.65rem 0.85rem;
  background: #fff8e6; border: 1px solid #f0d78c; border-radius: 0.5rem;
  font-size: 0.85rem; color: #7a5b00;
}
.field select { padding: 0.45rem 0.6rem; border: 1px solid var(--border); border-radius: 0.35rem; min-width: 8rem; }

@media (max-width: 900px) {
  .app-frame { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .sidebar {
    flex-direction: row;
    align-items: center;
    padding: 0.6rem 0.85rem;
    border-right: none;
    border-bottom: 1px solid var(--border);
    gap: 0.75rem;
    overflow: visible;
  }
  .sidebar-resizer { display: none; }
  .sidebar.is-collapsed {
    padding: 0.6rem 0.85rem;
    align-items: center;
  }
  .sidebar.is-collapsed .brand-copy { display: block; }
  .sidebar.is-collapsed .nav-tab span { display: inline; }
  .sidebar.is-collapsed .nav-tab {
    justify-content: center;
    padding: 0.55rem 0.5rem;
    border-bottom: 3px solid transparent;
  }
  .brand { padding: 0; }
  .brand-sub { display: none; }
  .nav-tabs { flex-direction: row; flex: 1; }
  .nav-tab { flex: 1; justify-content: center; padding: 0.55rem 0.5rem; border-left: none; border-bottom: 3px solid transparent; }
  .nav-tab.active { border-left-color: transparent; border-bottom-color: var(--accent); }
  .topbar { padding: 0 0.85rem; height: 52px; }
  .topbar-title span { display: none; }
  .chip span, .chip svg { display: none; }
  .chip strong::before { content: ''; }
  .history-toolbar { padding: 0.75rem; gap: 0.6rem; }
  .field input { min-width: 0; width: 100%; }
  .history-status { width: 100%; min-width: 0; }
  .sensor-panel-expanded.open {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: min(300px, 92vw);
    z-index: 8;
    box-shadow: var(--shadow-md);
  }
  .realtime-stage.has-panel .map-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.12);
    z-index: 4;
    pointer-events: none;
  }
}

@media (max-width: 520px) {
  .topbar-actions .btn span,
  .btn-primary { font-size: 0; padding: 0.45rem 0.55rem; }
  .btn-primary svg { margin: 0; }
  .metrics { grid-template-columns: 1fr; }
}