:root {
  --bg-dark: #0b1120;
  --bg-card: #1e293b;
  --bg-input: #334155;
  --border-color: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #38bdf8;
  --primary-hover: #0284c7;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --blue: #3b82f6;
  --gray: #64748b;
  --sim-bg: #0f172a;
  --sim-border: #0284c7;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Simulator Dock (Top bar for desktop and mobile) */
.sim-dock {
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  border-bottom: 2px solid var(--primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  position: sticky;
  top: 0;
  z-index: 99;
}

.sim-dock-header {
  padding: 8px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(56, 189, 248, 0.08);
}

.sim-dock-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}

.sim-icon { font-size: 1.2rem; }
.sim-tag {
  background-color: var(--primary);
  color: #0b1120;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
}

.sim-dock-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge-pulse {
  background-color: rgba(34, 197, 94, 0.2);
  color: var(--success);
  border: 1px solid var(--success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 0.8; }
  50% { opacity: 1; }
  100% { opacity: 0.8; }
}

.sim-dock-body {
  padding: 12px 16px;
  border-top: 1px solid var(--border-color);
  max-height: 500px;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.sim-dock-body.collapsed {
  max-height: 0;
  padding: 0 16px;
  border-top: none;
}

.sim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.sim-box {
  background-color: #131d2e;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px;
}

.sim-box-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sim-slider-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.sim-slider-row label {
  width: 90px;
  color: var(--text-muted);
}

.sim-slider {
  flex: 1;
  accent-color: var(--primary);
}

.sim-val {
  min-width: 50px;
  text-align: right;
  font-weight: 700;
  color: var(--text-main);
}

.sim-btn-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.sim-quick-btn {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s;
}

.sim-quick-btn:hover {
  background-color: var(--primary);
  color: #0b1120;
}

.btn-drive {
  background-color: rgba(34, 197, 94, 0.2);
  border-color: var(--success);
  color: var(--success);
}
.btn-drive.active {
  background-color: var(--success);
  color: #0b1120;
}

/* Header */
.app-header {
  background-color: var(--bg-card);
  padding: 12px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.header-left h1 {
  font-size: 1.25rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.badge {
  background-color: var(--primary);
  color: #0f172a;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 4px;
}

.badge-aps {
  background-color: rgba(34, 197, 94, 0.25);
  color: #4ade80;
  border: 1px solid #22c55e;
}

.badge-rps {
  background-color: rgba(59, 130, 246, 0.25);
  color: #60a5fa;
  border: 1px solid #3b82f6;
}

.sub-badge {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-left: 10px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-pill {
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-green { background-color: rgba(34, 197, 94, 0.2); color: var(--success); border: 1px solid var(--success); }
.status-red { background-color: rgba(239, 68, 68, 0.2); color: var(--danger); border: 1px solid var(--danger); }
.status-yellow { background-color: rgba(245, 158, 11, 0.2); color: var(--warning); border: 1px solid var(--warning); }
.status-blue { background-color: rgba(59, 130, 246, 0.2); color: var(--blue); border: 1px solid var(--blue); }
.status-gray { background-color: rgba(100, 116, 139, 0.2); color: var(--gray); border: 1px solid var(--gray); }

.clickable { cursor: pointer; }

/* Navigation */
.app-nav {
  background-color: #131d2e;
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-color);
}

.nav-tab {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 12px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
}

.nav-tab:hover {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.05);
}

.nav-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background-color: rgba(56, 189, 248, 0.08);
}

/* Content */
.app-content {
  flex: 1;
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.tab-pane { display: none; }
.tab-pane.active { display: block; }

.dashboard-banner {
  background-color: rgba(239, 68, 68, 0.2);
  border: 1px solid var(--danger);
  color: #fca5a5;
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 1rem;
}

/* Gauges Grid */
.gauges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 15px 0 25px 0;
}

.gauge-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
}

.gauge-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.gauge-title {
  font-weight: 700;
  font-size: 1.1rem;
}

.gauge-bar-bg {
  background-color: var(--bg-input);
  height: 20px;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  margin-bottom: 10px;
}

.gauge-bar-fill {
  background: linear-gradient(90deg, var(--primary), #22c55e);
  height: 100%;
  width: 0%;
  transition: width 0.1s linear;
}

.gauge-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.gauge-details span strong { color: var(--text-main); }

/* Cards & Tables */
.cards-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
}

.card h3 {
  font-size: 1.05rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table td, .data-table th {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
  font-size: 0.9rem;
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
}

/* Forms & Buttons */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary { background-color: var(--primary); color: #0f172a; }
.btn-primary:hover { background-color: var(--primary-hover); }
.btn-secondary { background-color: var(--bg-input); color: var(--text-main); border: 1px solid var(--border-color); }
.btn-secondary:hover { background-color: #475569; }
.btn-warning { background-color: var(--warning); color: #0f172a; }
.btn-danger { background-color: var(--danger); color: white; }
.btn-success { background-color: var(--success); color: #0f172a; }
.btn-sm { padding: 4px 10px; font-size: 0.8rem; }

.form-control {
  width: 100%;
  padding: 8px 12px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-main);
  margin-top: 4px;
  margin-bottom: 12px;
}

.form-control-inline {
  padding: 6px 10px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-main);
}

.hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

/* Toggle Switch */
.switch-container {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch-container input { opacity: 0; width: 0; height: 0; }

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--bg-input);
  transition: .2s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px; width: 18px;
  left: 3px; bottom: 3px;
  background-color: white;
  transition: .2s;
  border-radius: 50%;
}

input:checked + .slider { background-color: var(--success); }
input:checked + .slider:before { transform: translateX(20px); }

/* DAC Grid */
.dac-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  margin-top: 15px;
}

.dac-slider-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
}

/* Geofence */
.geofence-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 16px;
}

@media (max-width: 768px) {
  .geofence-layout {
    grid-template-columns: 1fr;
  }
}

.points-list {
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  background: var(--bg-dark);
  border-radius: 4px;
  padding: 6px;
  margin: 8px 0;
  font-size: 0.8rem;
}

/* CAN Table */
.can-send-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 10px;
}

.table-scroll {
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  margin-top: 10px;
}

/* Checkbox Grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 10px 0;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 100;
  left: 0; top: 0; width: 100%; height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  justify-content: center;
  align-items: center;
}

.modal.active { display: flex; }

.modal-content {
  background-color: var(--bg-card);
  padding: 24px;
  border-radius: 8px;
  max-width: 400px;
  width: 90%;
  border: 1px solid var(--border-color);
  position: relative;
}

.close-btn {
  position: absolute;
  right: 15px; top: 12px;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}

.btn-group {
  display: flex;
  gap: 8px;
}

.row-flex {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

/* Footer */
.app-footer {
  background-color: var(--bg-card);
  padding: 10px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}