:root {
  --bg-main: #0c0e12;
  --bg-card: #151921;
  --bg-card-glass: rgba(21, 25, 33, 0.85);
  --border-subtle: #252c38;
  --border-focus: #4b586e;
  
  --accent-gold: #f5b041;
  --accent-gold-glow: rgba(245, 176, 65, 0.2);
  --accent-green: #2ecc71;
  --accent-green-glow: rgba(46, 204, 113, 0.25);
  --accent-red: #e74c3c;
  --accent-red-glow: rgba(231, 76, 60, 0.25);
  --accent-blue: #3498db;
  --accent-purple: #9b59b6;

  --text-main: #f3f4f6;
  --text-sub: #9ca3af;
  --text-dim: #6b7280;

  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, sans-serif;
  --radius-lg: 14px;
  --radius-md: 8px;
  --radius-sm: 6px;
}

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

body {
  background-color: var(--bg-main);
  background-image: radial-gradient(circle at 50% 0%, #1a202c 0%, var(--bg-main) 70%);
  color: var(--text-main);
  font-family: var(--font-stack);
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 3rem;
}

/* Top Navigation Bar */
.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.pulse-dot {
  width: 9px;
  height: 9px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-green);
  animation: radar-pulse 2s infinite ease-out;
}

@keyframes radar-pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(46, 204, 113, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(46, 204, 113, 0); }
}

.brand h1 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-main);
}

.mode-toggle {
  display: flex;
  background-color: #080a0d;
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.mode-btn {
  background: transparent;
  color: var(--text-sub);
  border: none;
  padding: 0.45rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.mode-btn.active {
  background-color: #222936;
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
}

/* Milestone Crossing Banner */
.milestone-banner {
  background: linear-gradient(90deg, #b7791f 0%, #d69e2e 100%);
  color: #1a202c;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  box-shadow: 0 4px 15px rgba(214, 158, 46, 0.35);
  animation: slide-down 0.4s ease-out;
}

@keyframes slide-down {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.milestone-icon {
  font-size: 1.8rem;
}

.milestone-banner strong {
  font-size: 1rem;
  display: block;
}

.milestone-banner p {
  font-size: 0.8rem;
  color: #2d3748;
}

/* Main Container & Base Cards */
.main-container {
  max-width: 820px;
  margin: 1.25rem auto 0;
  padding: 0 1rem;
}

.view-panel {
  display: none;
}

.view-panel.active {
  display: block;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1.1rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.card h3 {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  margin-bottom: 1rem;
  color: var(--accent-gold);
}

/* Toggle Switch Row (WakeLock) */
.toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0 0.25rem;
  border-top: 1px solid var(--border-subtle);
  margin-top: 0.5rem;
}

.switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #272d38;
  transition: .3s;
  border-radius: 26px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-green);
}

input:checked + .slider:before {
  transform: translateX(22px);
}

/* Driver HUD */
.hud-card {
  background: linear-gradient(180deg, #171c26 0%, #11141c 100%);
  border: 1px solid #2d3545;
}

.hud-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.badge {
  background-color: #0c0e12;
  color: var(--accent-gold);
  border: 1px solid rgba(245, 176, 65, 0.3);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.sync-indicator {
  font-size: 0.75rem;
  color: var(--accent-green);
  font-weight: 600;
}

.speed-readout {
  text-align: center;
  padding: 1.5rem 0 1rem;
}

.speed-readout span:first-child {
  font-size: 5rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  line-height: 0.9;
  letter-spacing: -2px;
  color: #ffffff;
  text-shadow: 0 0 25px rgba(255, 255, 255, 0.15);
}

.speed-readout .unit {
  font-size: 1.1rem;
  color: var(--accent-gold);
  font-weight: 800;
  letter-spacing: 1px;
  margin-left: 0.3rem;
}

.hud-subdata {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  background-color: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  margin-bottom: 1.25rem;
  text-align: center;
}

.hud-subdata small {
  font-size: 0.65rem;
  color: var(--text-dim);
  font-weight: 700;
  letter-spacing: 0.8px;
}

.hud-subdata p {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  margin-top: 2px;
  font-variant-numeric: tabular-nums;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-photo {
  width: 100%;
  padding: 1rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--accent-green);
  color: #062311;
  box-shadow: 0 4px 15px var(--accent-green-glow);
}

.btn-primary:active { transform: scale(0.98); }

.btn-primary.tracking-active {
  background: var(--accent-red);
  color: #ffffff;
  box-shadow: 0 4px 15px var(--accent-red-glow);
}

.btn-secondary {
  background: var(--accent-gold);
  color: #271b05;
  box-shadow: 0 4px 15px var(--accent-gold-glow);
  margin-top: 0.5rem;
}

.btn-photo {
  background: #272d38;
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

.btn-photo:active { background: #323a48; }

/* Quick Status Grid */
.quick-status-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}

.btn-chip {
  background-color: #1a202c;
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  padding: 0.85rem 0.5rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn-chip:active {
  background-color: #2d3748;
  border-color: var(--accent-gold);
}

/* Forms */
.form-group {
  margin-bottom: 0.85rem;
}

.form-row {
  display: flex;
  gap: 0.75rem;
}

.form-row .form-group {
  flex: 1;
}

label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-sub);
  margin-bottom: 0.35rem;
}

input, select {
  width: 100%;
  background-color: #0d1017;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: border-color 0.2s ease;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 2px var(--accent-gold-glow);
}

/* Watcher / Mission Control */
.map-container {
  width: 100%;
  height: 420px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  margin-bottom: 1rem;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
  background-color: #12151b;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
  margin-bottom: 1rem;
}

@media (min-width: 600px) {
  .stats-bar {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 0.75rem;
  text-align: center;
}

.stat-box small {
  font-size: 0.65rem;
  color: var(--text-dim);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.stat-box h4 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-top: 0.25rem;
  color: var(--text-main);
}

.driver-pill-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--accent-gold);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-bottom: 0.6rem;
}

.driver-pill-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
}

.driver-pill-info p {
  font-size: 0.75rem;
  color: var(--text-sub);
}

.driver-pill-speed {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
}

/* Photo Gallery Grid */
.photo-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.6rem;
}

.photo-thumb-card {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background-color: #0d1017;
}

.photo-thumb-card img {
  width: 100%;
  height: 100px;
  object-fit: cover;
  display: block;
}

.photo-thumb-card .caption {
  font-size: 0.7rem;
  padding: 4px 6px;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Ledger Table */
.table-responsive {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

th, td {
  padding: 0.75rem 0.6rem;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  color: var(--text-dim);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 700;
}

td { color: var(--text-sub); }

.text-muted {
  color: var(--text-dim);
  text-align: center;
  padding: 1.5rem 0;
}