:root {
  --bg-deep-sea: #061826;
  --bg-mid-sea: #0e2c40;
  --bg-coast: #8c7a65;
  --bg-sky-bright: #b6d8f2;
  --bg-sky-zenith: #5a9bd4;

  --chrome-light: #e2e8f0;
  --chrome-mid: #94a3b8;
  --chrome-dark: #334155;
  --obsidian-cowling: #0b0f17;

  --accent-amber: #ff9f1c;
  --accent-crimson: #e75a4c;
  --accent-cyan: #38bdf8;
  --hud-green: #4ade80;

  --glass-bg: rgba(9, 15, 26, 0.72);
  --glass-border: rgba(226, 232, 240, 0.18);
  --glass-highlight: rgba(255, 255, 255, 0.07);

  --font-display: 'Chakra Petch', sans-serif;
  --font-sans: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-deep-sea);
  color: var(--chrome-light);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

/* Fullscreen Interactive Canvas */
#flight-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  cursor: crosshair;
}

/* Subtle HUD Vignette */
.hud-vignette {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 50%, transparent 55%, rgba(4, 10, 18, 0.65) 100%),
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.012) 0px,
      rgba(255, 255, 255, 0.012) 1px,
      transparent 1px,
      transparent 3px
    );
}

/* Top Telemetry Header */
.telemetry-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: linear-gradient(180deg, rgba(6, 12, 20, 0.85) 0%, rgba(6, 12, 20, 0) 100%);
  border-bottom: 1px solid rgba(226, 232, 240, 0.12);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

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

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-crimson);
  box-shadow: 0 0 10px var(--accent-crimson);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}

.telemetry-label {
  color: var(--chrome-mid);
  font-size: 0.7rem;
}

.telemetry-value {
  color: var(--chrome-light);
  font-weight: 700;
}

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

.accent-crimson {
  color: var(--accent-crimson);
}

.readout-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--glass-border);
  padding: 5px 10px;
  border-radius: 4px;
}

/* Compass Strip */
.telemetry-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.compass-strip {
  width: 260px;
  height: 32px;
  overflow: hidden;
  position: relative;
  border-left: 2px solid var(--accent-amber);
  border-right: 2px solid var(--accent-amber);
  background: rgba(8, 15, 26, 0.6);
  mask-image: linear-gradient(90deg, transparent, #000 20%, #000 80%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 20%, #000 80%, transparent);
}

.compass-track {
  display: flex;
  align-items: center;
  gap: 22px;
  height: 100%;
  white-space: nowrap;
  will-change: transform;
  padding: 0 20px;
  color: var(--chrome-mid);
  font-size: 0.75rem;
}

.compass-track .cardinal {
  color: var(--accent-amber);
  font-weight: 700;
}

.compass-lubber {
  position: absolute;
  top: -3px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--accent-amber);
  font-size: 0.65rem;
}

/* Barrel Roll Action Button */
.hud-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(231, 90, 76, 0.22), rgba(255, 159, 28, 0.18));
  color: var(--chrome-light);
  border: 1px solid rgba(255, 159, 28, 0.55);
  padding: 6px 13px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.hud-action-btn:hover {
  background: linear-gradient(135deg, rgba(231, 90, 76, 0.45), rgba(255, 159, 28, 0.35));
  box-shadow: 0 0 16px rgba(255, 159, 28, 0.35);
  transform: translateY(-1px);
}

.hud-action-btn:active {
  transform: translateY(0);
}

/* Left & Right HUD Ladders */
.hud-ladder {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
}

.hud-left {
  left: 24px;
}

.hud-right {
  right: 24px;
}

.ladder-title {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--accent-amber);
  font-weight: 700;
}

.ladder-window {
  width: 66px;
  height: 220px;
  background: rgba(9, 15, 26, 0.55);
  border-top: 2px solid var(--chrome-mid);
  border-bottom: 2px solid var(--chrome-mid);
  border-left: 1px solid rgba(226, 232, 240, 0.14);
  border-right: 1px solid rgba(226, 232, 240, 0.14);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(6px);
}

.ladder-tape {
  position: absolute;
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 16px 8px;
  font-size: 0.72rem;
  color: var(--chrome-mid);
  will-change: transform;
}

.ladder-tick {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ladder-tick::after {
  content: '';
  width: 10px;
  height: 1px;
  background: var(--chrome-mid);
}

.ladder-pointer {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  background: rgba(11, 15, 23, 0.92);
  border-top: 1px solid var(--accent-amber);
  border-bottom: 1px solid var(--accent-amber);
  padding: 4px 6px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-amber);
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.6);
}

.throttle-control,
.telemetry-mini {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: rgba(9, 15, 26, 0.65);
  border: 1px solid var(--glass-border);
  padding: 8px 10px;
  border-radius: 4px;
  width: 92px;
}

#throttle-slider {
  width: 72px;
  accent-color: var(--accent-amber);
  cursor: ew-resize;
}

.tension-bar {
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 3px;
  overflow: hidden;
}

.tension-fill {
  width: 68%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-amber), var(--accent-crimson));
  transition: width 0.15s ease;
}

#wind-audio-toggle {
  font-size: 0.65rem;
  cursor: pointer;
  color: var(--chrome-mid);
  border: 1px dashed rgba(226, 232, 240, 0.25);
  padding: 3px 6px;
  border-radius: 3px;
  transition: all 0.2s ease;
}

#wind-audio-toggle:hover {
  color: var(--accent-amber);
  border-color: var(--accent-amber);
}

/* Center HUD Reticle */
.reticle-overlay {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pitch-ladder-svg {
  width: 420px;
  height: 420px;
  opacity: 0.28;
}

.aircraft-symbol {
  fill: none;
  stroke: var(--accent-amber);
  stroke-width: 1.8;
}

.aircraft-dot {
  fill: var(--accent-amber);
}

.horizon-tick,
.pitch-bar {
  stroke: var(--chrome-light);
  stroke-width: 1.2;
}

.pitch-bar.dashed {
  stroke-dasharray: 4 4;
}

.roll-pointer {
  fill: var(--accent-crimson);
}

/* Main Foreground Stage */
.cockpit-stage {
  position: relative;
  z-index: 6;
  height: 100vh;
  max-width: 1180px;
  margin: 0 auto;
  padding: 78px 130px 64px;
  display: grid;
  grid-template-columns: 1.2fr 0.95fr;
  align-items: center;
  gap: 36px;
  pointer-events: none;
}

/* Allow interactive child cards to receive pointer events while canvas behind remains clickable */
.hero-card,
.destinations-grid {
  pointer-events: auto;
}

.hero-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 var(--glass-highlight);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 30px 32px;
  border-radius: 6px;
  position: relative;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 3px;
  background: var(--accent-crimson);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.aero-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  padding: 4px 9px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--chrome-light);
  border-radius: 3px;
}

.live-badge {
  background: rgba(231, 90, 76, 0.18);
  border-color: rgba(231, 90, 76, 0.55);
  color: #fca5a5;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 3.6vw, 3.35rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.stroke-text {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--chrome-light);
}

.accent-text {
  display: inline-block;
  color: var(--accent-amber);
  text-shadow: 0 0 24px rgba(255, 159, 28, 0.35);
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

body.inverted-world .accent-text {
  transform: rotate(180deg);
}

.hero-bio {
  font-size: 0.98rem;
  line-height: 1.6;
  color: #cbd5e1;
  margin-bottom: 20px;
}

.hero-bio strong {
  color: #ffffff;
}

/* Telemetry Persona Tabs */
.telemetry-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.tab-chip {
  flex: 1;
  min-width: 130px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(226, 232, 240, 0.16);
  color: var(--chrome-mid);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 9px 10px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.tab-chip .chip-code {
  color: var(--accent-amber);
  opacity: 0.7;
}

.tab-chip:hover {
  border-color: rgba(226, 232, 240, 0.4);
  color: var(--chrome-light);
}

.tab-chip.active {
  background: rgba(231, 90, 76, 0.16);
  border-color: var(--accent-crimson);
  color: #ffffff;
  box-shadow: inset 0 0 12px rgba(231, 90, 76, 0.25);
}

.tab-readout {
  background: rgba(4, 9, 16, 0.65);
  border-left: 3px solid var(--accent-amber);
  padding: 11px 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.5;
  color: #e2e8f0;
  border-radius: 0 4px 4px 0;
}

/* Destination Channel Cards (YouTube & GitHub) */
.destinations-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.channel-card {
  position: relative;
  text-decoration: none;
  color: var(--chrome-light);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 22px 24px;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.25s ease,
              box-shadow 0.25s ease;
  overflow: hidden;
}

.channel-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.06) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
  pointer-events: none;
}

.channel-card:hover::after {
  transform: translateX(100%);
}

.yt-card:hover {
  transform: translateY(-4px) scale(1.015);
  border-color: var(--accent-crimson);
  box-shadow: 0 20px 45px rgba(231, 90, 76, 0.25);
}

.gh-card:hover {
  transform: translateY(-4px) scale(1.015);
  border-color: var(--accent-amber);
  box-shadow: 0 20px 45px rgba(255, 159, 28, 0.22);
}

/* Tactical Corner Brackets */
.card-corner {
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: var(--chrome-mid);
  border-style: solid;
  opacity: 0.55;
  transition: opacity 0.2s ease, border-color 0.2s ease;
}

.channel-card:hover .card-corner {
  opacity: 1;
}

.yt-card:hover .card-corner {
  border-color: var(--accent-crimson);
}

.gh-card:hover .card-corner {
  border-color: var(--accent-amber);
}

.card-corner.tl { top: 6px; left: 6px; border-width: 2px 0 0 2px; }
.card-corner.tr { top: 6px; right: 6px; border-width: 2px 2px 0 0; }
.card-corner.bl { bottom: 6px; left: 6px; border-width: 0 0 2px 2px; }
.card-corner.br { bottom: 6px; right: 6px; border-width: 0 2px 2px 0; }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}

.channel-freq {
  color: var(--chrome-mid);
}

.yt-card .channel-status {
  color: var(--accent-crimson);
  font-weight: 700;
}

.gh-card .channel-status {
  color: var(--accent-amber);
  font-weight: 700;
}

.card-body {
  display: flex;
  align-items: center;
  gap: 18px;
}

.channel-icon {
  width: 58px;
  height: 58px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  transition: transform 0.25s ease;
}

.channel-card:hover .channel-icon {
  transform: scale(1.08) rotate(-4deg);
}

.yt-icon {
  background: radial-gradient(circle at 30% 30%, rgba(231, 90, 76, 0.35), rgba(15, 23, 42, 0.9));
  color: #ff6b5b;
}

.gh-icon {
  background: radial-gradient(circle at 30% 30%, rgba(255, 159, 28, 0.3), rgba(15, 23, 42, 0.9));
  color: var(--accent-amber);
}

.channel-info h2 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.channel-info p {
  font-size: 0.88rem;
  color: #cbd5e1;
  line-height: 1.45;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  border-top: 1px solid rgba(226, 232, 240, 0.1);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.yt-card .cta-label {
  color: #fca5a5;
}

.gh-card .cta-label {
  color: #fcd34d;
}

.cta-arrow {
  font-size: 1.05rem;
  transition: transform 0.25s ease;
}

.channel-card:hover .cta-arrow {
  transform: translateX(6px);
}

/* Bottom Flight Controls Bar */
.cockpit-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 44px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  background: linear-gradient(0deg, rgba(6, 12, 20, 0.88) 0%, rgba(6, 12, 20, 0) 100%);
  border-top: 1px solid rgba(226, 232, 240, 0.1);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--chrome-mid);
  letter-spacing: 0.06em;
}

.control-hint kbd {
  background: rgba(226, 232, 240, 0.1);
  border: 1px solid rgba(226, 232, 240, 0.25);
  color: var(--chrome-light);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  margin-right: 4px;
}

/* Responsive Layout */
@media (max-width: 1080px) {
  .hud-ladder {
    display: none;
  }

  .cockpit-stage {
    grid-template-columns: 1fr;
    padding: 74px 24px 56px;
    overflow-y: auto;
    align-content: start;
  }

  .telemetry-center {
    display: none;
  }
}

@media (max-width: 640px) {
  .telemetry-bar {
    padding: 0 14px;
  }

  .readout-pill {
    display: none;
  }

  .hero-card {
    padding: 20px;
  }

  .cockpit-footer {
    gap: 12px;
    font-size: 0.62rem;
    flex-wrap: wrap;
    height: auto;
    padding: 8px;
  }
}