:root {
  --bg-dark: #070a12;
  --bg-card: rgba(18, 26, 43, 0.7);
  --bg-sidebar: #0b101c;
  --border-color: rgba(255, 255, 255, 0.08);
  --text-main: #f0f4f8;
  --text-muted: #8b9bb4;
  --accent-cyan: #00d2ff;
  --accent-cyan-glow: rgba(0, 210, 255, 0.25);
  --accent-green: #00e676;
  --accent-purple: #7c4dff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
}

#app {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 20px;
  gap: 24px;
}

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

.logo-icon {
  font-size: 24px;
  background: linear-gradient(135deg, #00d2ff, #3a7bd5);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  box-shadow: 0 0 15px var(--accent-cyan-glow);
}

.brand-text h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand-text .version {
  font-size: 11px;
  color: var(--accent-cyan);
  font-weight: 600;
  text-transform: uppercase;
}

.vehicle-selector-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.vehicle-selector-box label {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.5px;
}

.vehicle-selector-box select {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 14px;
  outline: none;
  cursor: pointer;
  transition: all 0.2s;
}

.vehicle-selector-box select:focus {
  border-color: var(--accent-cyan);
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
}

.nav-item {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.nav-item:hover {
  background-color: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(0, 210, 255, 0.15), transparent);
  color: var(--accent-cyan);
  font-weight: 600;
  border-left: 3px solid var(--accent-cyan);
}

.system-status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  padding: 8px 12px;
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: 20px;
}

.status-dot.online {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-green);
}

/* Main Content */
.main-content {
  flex-grow: 1;
  overflow-y: auto;
  padding: 28px;
  display: flex;
  flex-direction: column;
}

.tab-content {
  display: none;
  flex-direction: column;
  gap: 24px;
  height: 100%;
}

.tab-content.active {
  display: flex;
}

.page-header h2 {
  font-size: 24px;
  font-weight: 700;
}

.page-header p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Cards */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
}

/* Hero Card (Progress) */
.hero-card {
  background: linear-gradient(135deg, rgba(18, 26, 43, 0.9), rgba(11, 16, 28, 0.95));
  border-color: rgba(0, 210, 255, 0.2);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.badge-cyan {
  background: rgba(0, 210, 255, 0.15);
  color: var(--accent-cyan);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
  text-transform: uppercase;
}

.hero-header h3 {
  font-size: 20px;
  font-weight: 700;
  margin-top: 6px;
}

.progress-percent {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent-cyan);
  font-feature-settings: "tnum";
}

.progress-bar-container {
  height: 12px;
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #00d2ff, #00e676);
  box-shadow: 0 0 12px rgba(0, 210, 255, 0.5);
  transition: width 0.4s ease;
}

.hero-stats {
  display: flex;
  gap: 40px;
  padding-top: 10px;
  border-top: 1px solid var(--border-color);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-item .stat-value {
  font-size: 22px;
  font-weight: 700;
}

.stat-item .stat-label {
  font-size: 12px;
  color: var(--text-muted);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
}

.stat-icon {
  font-size: 24px;
  background: rgba(255, 255, 255, 0.04);
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-num {
  font-size: 20px;
  font-weight: 700;
}

.stat-title {
  font-size: 12px;
  color: var(--text-muted);
}

/* Live Telemetry */
.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.tel-item {
  background: rgba(255, 255, 255, 0.02);
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tel-label {
  font-size: 11px;
  color: var(--text-muted);
}

.tel-val {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent-cyan);
}

/* Map Tab */
#tab-map {
  position: relative;
}

.map-controls-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.map-actions-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.action-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.action-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.action-btn.active {
  background: rgba(0, 210, 255, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.time-range-picker {
  display: flex;
  background: rgba(255, 255, 255, 0.05);
  padding: 4px;
  border-radius: 10px;
  gap: 4px;
}

.time-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.time-btn.active {
  background: var(--accent-cyan);
  color: #000;
  font-weight: 700;
}

.loading-pill {
  font-size: 12px;
  background: rgba(0, 210, 255, 0.2);
  color: var(--accent-cyan);
  padding: 6px 12px;
  border-radius: 12px;
}

.loading-pill.hidden {
  display: none;
}

#leafletMap {
  flex-grow: 1;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  min-height: 450px;
}

/* Scrollable Data Tables */
.scrollable-table-card {
  padding: 0;
  flex-grow: 1;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
}

/* Custom Scrollbars */
.scrollable-table-card::-webkit-scrollbar,
.main-content::-webkit-scrollbar {
  width: 8px;
}

.scrollable-table-card::-webkit-scrollbar-track,
.main-content::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
}

.scrollable-table-card::-webkit-scrollbar-thumb,
.main-content::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

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

.data-table th {
  position: sticky;
  top: 0;
  background: #0b101c;
  z-index: 10;
  color: var(--accent-cyan);
  font-size: 12px;
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
}

.data-table th.sortable-th {
  cursor: pointer;
  user-select: none;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.data-table th.sortable-th:hover {
  color: #ffffff;
  background: rgba(0, 210, 255, 0.12);
}

.data-table td {
  padding: 14px 18px;
  font-size: 13.5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.data-table tbody tr {
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.data-table tbody tr:hover {
  background-color: rgba(0, 210, 255, 0.06);
}

.btn-detail {
  background: rgba(0, 210, 255, 0.15);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

.btn-detail:hover {
  background: var(--accent-cyan);
  color: #000;
}

.loading-td {
  text-align: center;
  color: var(--text-muted);
  padding: 30px !important;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.modal-backdrop.hidden {
  display: none;
}

.modal-card {
  background: #0e1524;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  width: 90%;
  max-width: 600px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 18px;
  font-weight: 700;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}

.modal-close-btn:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-height: 80vh;
  overflow-y: auto;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.detail-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 14px 16px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-box.full-width {
  grid-column: span 2;
}

.detail-box .lbl {
  font-size: 11px;
  color: var(--text-muted);
}

.detail-box .val {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent-cyan);
}