/* ====================================================================
   LCDR Ben — Flight Deck stylesheet
   Palette: deep navy, carrier gray, HUD amber, muted red alerts
   Typography: monospace HUD readouts, sans-serif for overlay prose
==================================================================== */

:root {
  --navy-900: #0a1420;
  --navy-800: #0f1e30;
  --navy-700: #14283f;
  --gray-500: #8b9aab;
  --gray-300: #c3ccd6;
  --amber:    #ffb547;
  --amber-dim:#a06d1a;
  --red:      #e03a2d;
  --green:    #4caf50;
  --white:    #e8edf2;
}

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

html, body {
  width: 100%; height: 100%;
  background: #000;
  color: var(--white);
  font-family: 'Helvetica Neue', Arial, sans-serif;
  overflow: hidden;
  cursor: default;
  user-select: none;
}

#three-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  display: block;
  outline: none;
}

/* =================== LOADING SCREEN =================== */

#loading-screen {
  position: fixed; inset: 0;
  background: var(--navy-900);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.8s ease;
}

#loading-screen.fade-out {
  opacity: 0;
  pointer-events: none;
}

#loading-heli {
  width: 200px;
  margin-bottom: 32px;
}

#loading-rotor {
  transform-origin: 90px 36px;
  animation: rotor-spin 0.15s linear infinite;
}

@keyframes rotor-spin {
  to { transform: rotate(360deg); }
}

#loading-text {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  letter-spacing: 6px;
  color: var(--amber);
  margin-bottom: 20px;
}

#loading-bar-frame {
  width: 280px;
  height: 4px;
  background: var(--navy-700);
  border: 1px solid var(--gray-500);
  overflow: hidden;
}

#loading-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--amber);
  transition: width 0.2s ease;
}

#loading-pct {
  margin-top: 12px;
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: var(--gray-500);
  letter-spacing: 2px;
}

/* =================== FALLBACK SCREEN =================== */

#fallback-screen {
  position: fixed; inset: 0;
  background: var(--navy-900);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 20px;
}

.fallback-inner {
  max-width: 480px;
  text-align: center;
}

.fallback-inner h1 {
  font-family: 'Courier New', monospace;
  letter-spacing: 6px;
  color: var(--amber);
  margin-bottom: 20px;
  font-size: 28px;
}

.fallback-inner p {
  color: var(--gray-300);
  line-height: 1.6;
  margin-bottom: 24px;
}

.fallback-links {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.fallback-links a {
  color: var(--amber);
  text-decoration: none;
  border: 1px solid var(--amber-dim);
  padding: 8px 16px;
  font-family: 'Courier New', monospace;
  letter-spacing: 2px;
  font-size: 12px;
  text-transform: uppercase;
  transition: background 0.2s;
}

.fallback-links a:hover {
  background: var(--amber-dim);
  color: var(--navy-900);
}

/* =================== HUD =================== */

#hud {
  position: fixed; inset: 0;
  pointer-events: none;
  font-family: 'Courier New', 'Consolas', monospace;
  z-index: 100;
}

#hud.hidden { display: none; }

#hud-readouts {
  position: absolute;
  top: 20px; left: 20px;
  background: rgba(10, 20, 32, 0.34);
  border: 1px solid var(--amber-dim);
  padding: 10px 14px;
  min-width: 164px;
  backdrop-filter: blur(2px);
}

.hud-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: var(--amber);
  font-size: 14px;
  line-height: 1.6;
}

.hud-label {
  color: var(--gray-500);
  width: 30px;
  font-size: 11px;
  letter-spacing: 1px;
}

.hud-unit {
  color: var(--gray-500);
  font-size: 10px;
  margin-left: auto;
}

/* Attitude indicator */
#attitude-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 152px;
  height: 170px;
}

#ai-heading-box {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  min-width: 82px;
  height: 24px;
  padding: 2px 8px;
  color: var(--amber);
  background: rgba(10, 20, 32, 0.62);
  border: 1px solid var(--amber-dim);
  box-shadow: 0 0 10px rgba(255, 181, 71, 0.12);
  letter-spacing: 1px;
}

#ai-cardinal {
  font-weight: 800;
  font-size: 13px;
}

#ai-heading-deg {
  font-size: 16px;
}

.ai-heading-unit {
  color: var(--gray-500);
  font-size: 10px;
}

#ai-clip {
  position: absolute;
  top: 34px;
  left: 20px;
  width: 112px;
  height: 112px;
  border-radius: 50%;
  overflow: hidden;
  background: #000;
  border: 2px solid var(--amber-dim);
}

#ai-ball {
  position: absolute;
  left: -50%; top: -50%;
  width: 200%; height: 200%;
  transition: transform 0.05s linear;
}

#ai-sky {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 50%;
  background:
    radial-gradient(circle at 50% 70%, rgba(255,255,255,0.12), transparent 34%),
    linear-gradient(180deg, #6ca6d2, #365e85);
}

#ai-ground {
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 50%;
  background:
    linear-gradient(90deg, transparent 48%, rgba(255,255,255,0.18) 49%, rgba(255,255,255,0.18) 51%, transparent 52%),
    linear-gradient(180deg, #9b7140, #4d331c);
}

#ai-horizon {
  position: absolute;
  top: 50%; left: 0;
  width: 100%; height: 2px;
  background: var(--white);
  transform: translateY(-1px);
}

.ai-ladder {
  position: absolute;
  left: 50%;
  width: 84px;
  height: 1px;
  background: rgba(255, 255, 255, 0.72);
  transform: translateX(-50%);
  box-shadow: 0 0 4px rgba(255, 255, 255, 0.24);
}

.ai-ladder::before,
.ai-ladder::after {
  content: '';
  position: absolute;
  top: -4px;
  width: 1px;
  height: 9px;
  background: rgba(255, 255, 255, 0.62);
}

.ai-ladder::before { left: 12px; }
.ai-ladder::after { right: 12px; }
.ai-ladder-up-2 { top: 38%; width: 54px; opacity: 0.46; }
.ai-ladder-up-1 { top: 44%; width: 72px; opacity: 0.62; }
.ai-ladder-down-1 { top: 56%; width: 72px; opacity: 0.62; }
.ai-ladder-down-2 { top: 62%; width: 54px; opacity: 0.46; }

#ai-pointer {
  position: absolute;
  top: 90px; left: 50%;
  width: 40px; height: 2px;
  background: var(--amber);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 4px var(--amber);
}

#ai-pointer::before,
#ai-pointer::after {
  content: '';
  position: absolute;
  top: 0;
  width: 10px; height: 2px;
  background: var(--amber);
}

#ai-pointer::before { left: -14px; }
#ai-pointer::after { right: -14px; }

#ai-frame {
  position: absolute;
  top: 26px;
  left: 12px;
  width: 128px;
  height: 128px;
  border: 2px solid var(--amber-dim);
  border-radius: 50%;
  pointer-events: none;
}

#ai-frame::before {
  content: '';
  position: absolute;
  top: 2px; left: 50%;
  width: 2px; height: 8px;
  background: var(--amber);
  transform: translateX(-50%);
}

#ai-compass-note {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  color: var(--gray-500);
  font-size: 9px;
  text-align: center;
  letter-spacing: 1.6px;
}

/* Minimap */
#minimap {
  position: absolute;
  top: 20px; right: 20px;
  background: rgba(10, 20, 32, 0.42);
  border: 1px solid var(--amber-dim);
  padding: 8px;
  backdrop-filter: blur(2px);
}

#minimap-label {
  font-size: 10px;
  color: var(--gray-500);
  letter-spacing: 2px;
  margin-bottom: 6px;
  text-align: center;
}

#minimap-canvas {
  display: block;
  background: var(--navy-900);
}

/* Waypoint proximity label */
#waypoint-label {
  position: absolute;
  left: 50%; top: 30%;
  transform: translateX(-50%);
  color: var(--amber);
  font-size: 13px;
  letter-spacing: 3px;
  text-align: center;
  background: rgba(10, 20, 32, 0.38);
  padding: 8px 16px;
  border: 1px solid var(--amber-dim);
  text-transform: uppercase;
}

#waypoint-label.hidden { display: none; }

#waypoint-label .wl-prompt {
  display: block;
  font-size: 10px;
  color: var(--gray-500);
  margin-top: 4px;
  letter-spacing: 2px;
}

/* Controls card */
#controls-card {
  position: absolute;
  bottom: 20px; right: 20px;
  background: rgba(10, 20, 32, 0.5);
  border: 1px solid var(--amber-dim);
  padding: 12px 16px;
  font-size: 10px;
  max-width: 280px;
  pointer-events: auto;
  transition: opacity 0.3s, transform 0.3s;
}

#controls-card.hidden {
  opacity: 0;
  transform: translateX(20px);
  pointer-events: none;
}

.cc-header {
  color: var(--amber);
  letter-spacing: 2px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--amber-dim);
  padding-bottom: 6px;
}

#cc-close {
  cursor: pointer;
  color: var(--gray-500);
  font-size: 16px;
  line-height: 1;
}

#cc-close:hover { color: var(--amber); }

.cc-grid {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 4px 12px;
  color: var(--gray-300);
}

.cc-key {
  color: var(--amber);
  font-weight: bold;
}

/* Boundary warning */
#boundary-warning {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(224, 58, 45, 0.15);
  border: 2px solid var(--red);
  padding: 12px 24px;
  animation: pulse-warn 0.8s ease-in-out infinite;
}

#boundary-warning.hidden { display: none; }

.bw-text {
  color: var(--red);
  letter-spacing: 4px;
  font-size: 14px;
}

@keyframes pulse-warn {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Audio indicator */
#audio-indicator {
  position: absolute;
  bottom: 20px; left: 20px;
  font-size: 10px;
  color: var(--gray-500);
  letter-spacing: 2px;
}

/* =================== OVERLAY PANELS =================== */

#overlay-container {
  position: fixed; inset: 0;
  z-index: 500;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  animation: fade-in 0.3s;
}

#overlay-container.hidden { display: none; }

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

#overlay-panel {
  width: 100%;
  max-width: 780px;
  max-height: 80vh;
  background: var(--navy-800);
  border: 1px solid var(--amber-dim);
  padding: 32px 40px;
  overflow-y: auto;
  position: relative;
  animation: slide-up 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

@keyframes slide-up {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

#overlay-close {
  position: absolute;
  top: 16px; right: 20px;
  color: var(--gray-500);
  font-family: 'Courier New', monospace;
  font-size: 12px;
  letter-spacing: 2px;
  cursor: pointer;
  padding: 4px 8px;
}

#overlay-close:hover { color: var(--amber); }

#overlay-content h1 {
  font-family: 'Courier New', monospace;
  color: var(--amber);
  letter-spacing: 4px;
  font-size: 22px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--navy-700);
}

#overlay-content h2 {
  color: var(--amber);
  font-size: 16px;
  margin-top: 20px;
  margin-bottom: 10px;
  letter-spacing: 1px;
}

#overlay-content p {
  color: var(--gray-300);
  line-height: 1.7;
  margin-bottom: 14px;
}

#overlay-content ul {
  list-style: none;
  padding: 0;
}

#overlay-content li {
  color: var(--gray-300);
  padding: 10px 14px;
  border-left: 2px solid var(--amber-dim);
  margin-bottom: 10px;
  background: rgba(10, 20, 32, 0.5);
  transition: border-color 0.2s, background 0.2s;
}

#overlay-content li:hover {
  border-left-color: var(--amber);
  background: rgba(20, 40, 63, 0.5);
}

#overlay-content a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px dotted var(--amber-dim);
}

#overlay-content a:hover {
  border-bottom-style: solid;
}

#overlay-content .project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}

#overlay-content .project-card {
  background: var(--navy-700);
  border: 1px solid var(--navy-900);
  padding: 16px;
}

#overlay-content .project-card h3 {
  color: var(--amber);
  font-size: 14px;
  margin-bottom: 8px;
  font-family: 'Courier New', monospace;
  letter-spacing: 1px;
}

#overlay-content .project-card p {
  font-size: 13px;
  margin-bottom: 0;
}

#overlay-content .contact-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--navy-700);
}

#overlay-content .contact-label {
  color: var(--gray-500);
  font-family: 'Courier New', monospace;
  font-size: 11px;
  letter-spacing: 2px;
  width: 100px;
}

/* =================== PAUSE MENU =================== */

#pause-menu {
  position: fixed; inset: 0;
  background: rgba(10, 20, 32, 0.85);
  z-index: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

#pause-menu.hidden { display: none; }

.pm-inner {
  text-align: center;
}

.pm-inner h1 {
  font-family: 'Courier New', monospace;
  color: var(--amber);
  letter-spacing: 8px;
  margin-bottom: 32px;
  font-size: 32px;
}

.pm-inner button {
  display: block;
  width: 260px;
  margin: 8px auto;
  padding: 12px 20px;
  background: transparent;
  border: 1px solid var(--amber-dim);
  color: var(--gray-300);
  font-family: 'Courier New', monospace;
  font-size: 13px;
  letter-spacing: 4px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.pm-inner button:hover {
  background: var(--amber-dim);
  color: var(--navy-900);
  border-color: var(--amber);
}

.hidden { display: none !important; }