:root {
  --bg-dark: #07090e;
  --bg-card: rgba(14, 20, 32, 0.75);
  --bg-card-border: rgba(0, 240, 255, 0.15);
  --accent-cyan: #00f0ff;
  --accent-amber: #ffb700;
  --accent-green: #00ff88;
  --accent-red: #ff3366;
  --text-main: #f0f4f8;
  --text-dim: #8b9bb4;
  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'Chakra Petch', sans-serif;
  --font-matrix: 'VT323', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 240, 255, 0.05) 0%, transparent 60%),
    radial-gradient(circle at 100% 100%, rgba(0, 255, 136, 0.03) 0%, transparent 40%);
}

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 12px 16px;
  gap: 14px;
  max-width: 1600px;
  margin: 0 auto;
}

/* Header Top Bar */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 12px;
  padding: 10px 18px;
  flex-wrap: wrap;
  gap: 12px;
}

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

.radar-pulse {
  width: 12px;
  height: 12px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(0, 240, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 240, 255, 0); }
}

.brand-title {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 2px;
}

.brand-title .highlight {
  color: var(--accent-cyan);
}

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
  letter-spacing: 1px;
}

.badge-live {
  background: rgba(0, 255, 136, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(0, 255, 136, 0.4);
}

.active-location {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--text-dim);
}

.icon-geo {
  color: var(--accent-cyan);
}

.dot-divider {
  color: rgba(255, 255, 255, 0.2);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-main);
  padding: 7px 14px;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.btn:hover {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-primary {
  background: var(--accent-cyan);
  color: #000;
  font-weight: 700;
  border: none;
}

.btn-primary:hover {
  background: #26f4ff;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

/* Main Layout */
.main-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

/* Matrix Section & Authentic LED Bezel */
.matrix-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.matrix-frame-bezel {
  background: linear-gradient(145deg, #1c222e, #0e121a);
  border: 4px solid #2b3548;
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.8),
    inset 0 2px 4px rgba(255, 255, 255, 0.1),
    inset 0 -2px 4px rgba(0, 0, 0, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.matrix-frame-inner {
  background: #020305;
  border-radius: 8px;
  padding: 10px;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.9);
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

#matrixCanvas {
  width: 100%;
  max-width: 960px;
  aspect-ratio: 2 / 1;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  display: block;
}

/* ========================================================= */
/* 🔲 PURE LED ONLY FULLSCREEN MODE (The Authentic FlightWall) */
/* ========================================================= */
body.led-only-mode {
  background: #000000 !important;
  overflow: hidden !important;
}

body.led-only-mode .top-bar,
body.led-only-mode .telemetry-strip,
body.led-only-mode #radarSection,
body.led-only-mode .bezel-footer {
  display: none !important;
}

body.led-only-mode .app-container {
  padding: 0 !important;
  margin: 0 !important;
  max-width: 100vw !important;
  width: 100vw !important;
  height: 100vh !important;
  background: #000000 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  overflow: hidden !important;
}

body.led-only-mode .main-content,
body.led-only-mode .matrix-section,
body.led-only-mode .matrix-frame-bezel,
body.led-only-mode .matrix-frame-inner {
  width: 100vw !important;
  height: 100vh !important;
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
  background: #000000 !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

body.led-only-mode #matrixCanvas {
  max-width: 100vw !important;
  max-height: 100vh !important;
  width: 100vw !important;
  height: auto !important;
  aspect-ratio: 2 / 1 !important;
  object-fit: contain !important;
  cursor: pointer;
}

/* Floating HUD Controls for LED-Only Mode */
.led-floating-controls {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 10px;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

body.led-only-mode:hover .led-floating-controls,
body.led-only-mode .led-floating-controls.visible {
  opacity: 1;
}

.btn-floating {
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(0, 240, 255, 0.4);
  color: var(--accent-cyan);
  padding: 8px 16px;
  border-radius: 20px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
}

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

.bezel-footer {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  padding: 0 6px;
}

.bezel-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #5d6f8a;
  letter-spacing: 1.5px;
}

.status-leds {
  display: flex;
  gap: 8px;
}

.led-blip {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.led-green {
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
}

.led-amber {
  background: #443300;
  transition: all 0.3s;
}

.led-amber.active {
  background: var(--accent-amber);
  box-shadow: 0 0 10px var(--accent-amber);
}

/* Telemetry Strip */
.telemetry-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.telemetry-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  backdrop-filter: blur(8px);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tel-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 1px;
}

.tel-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tel-primary {
  color: var(--accent-cyan);
  font-weight: 800;
}

.tel-route {
  color: var(--accent-amber);
}

/* Radar & Airspace Section */
.radar-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 1024px) {
  .radar-section {
    grid-template-columns: 1fr;
  }
}

.radar-container, .aircraft-table-container {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  backdrop-filter: blur(8px);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.card-header h3 {
  font-size: 0.95rem;
  letter-spacing: 1px;
  color: var(--accent-cyan);
}

.radar-range-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: rgba(0, 240, 255, 0.1);
  color: var(--accent-cyan);
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.map-container {
  width: 100%;
  height: 380px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Dark mode Leaflet tile adjustment */
.leaflet-tile {
  filter: brightness(0.7) invert(1) contrast(2.2) hue-rotate(190deg) saturate(0.5);
}

/* Aircraft Table */
.table-scroll {
  overflow-x: auto;
  max-height: 380px;
}

.aircraft-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-align: left;
}

.aircraft-table th {
  color: var(--text-dim);
  font-size: 0.72rem;
  letter-spacing: 1px;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.aircraft-table td {
  padding: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.aircraft-table tr.focused-row {
  background: rgba(0, 240, 255, 0.08);
  color: var(--accent-cyan);
}

.table-empty {
  text-align: center;
  padding: 30px !important;
  color: var(--text-dim);
}

/* Modal Backdrop */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}

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

.modal-card {
  background: #0e1420;
  border: 1px solid var(--accent-cyan);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
  border-radius: 16px;
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.modal-header h2 {
  font-size: 1.2rem;
  color: var(--accent-cyan);
  letter-spacing: 1px;
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.6rem;
  cursor: pointer;
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.setting-label {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 600;
}

.preset-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.btn-preset {
  font-size: 0.8rem;
  padding: 5px 10px;
}

.btn-geo {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.setting-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.setting-col {
  flex: 1;
  min-width: 140px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-input, .form-slider {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: #fff;
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  width: 100%;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.checkbox-container {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--text-main);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 10px;
}