/* =============================================================
   CITY MAP + HUD + GPS LOADING SCREEN
============================================================= */

/* ---- GPS Boot Screen ---- */
#gps-screen {
  position: fixed;
  inset: 0;
  background: var(--clr-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

#gps-boot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-md);
  width: min(420px, 90vw);
  text-align: center;
}

#gps-logo {
  font-size: 3rem;
  color: var(--clr-text-hi);
  animation: gps-pulse 1.5s ease-in-out infinite;
}

@keyframes gps-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

#gps-status {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--clr-muted);
  min-height: 1.2em;
}

#gps-bar-wrap {
  width: 100%;
  height: 2px;
  background: var(--clr-border);
  overflow: hidden;
}

#gps-bar {
  height: 100%;
  width: 0%;
  background: var(--clr-text-hi);
  transition: width 50ms linear;
}

#gps-prompt {
  width: 100%;
  margin-top: var(--sp-lg);
}

#gps-prompt p {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: var(--sp-md);
}

.gps-option {
  display: block;
  width: 100%;
  background: transparent;
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: var(--sp-md);
  margin-bottom: var(--sp-sm);
  cursor: pointer;
  letter-spacing: 0.05em;
  text-align: left;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.gps-option::before {
  content: '▸  ';
  color: var(--clr-muted);
}

.gps-option:hover {
  border-color: var(--clr-text-hi);
  background: rgba(255,255,255,0.04);
  color: var(--clr-text-hi);
}
.gps-option:hover::before {
  color: var(--clr-text-hi);
}

/* ---- City View ---- */
#city-view {
  position: fixed;
  inset: 0;
}

#city-canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--clr-bg);
}

/* ---- HUD District Label ---- */
#hud-district-label {
  position: fixed;
  top: var(--sp-lg);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--clr-text-hi);
  background: rgba(0,0,0,0.7);
  border: 1px solid var(--clr-border);
  padding: var(--sp-sm) var(--sp-md);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-mid);
  z-index: 50;
}
#hud-district-label.visible { opacity: 1; }

/* ---- Player Bar ---- */
#player-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 52px;
  background: rgba(10,10,10,0.92);
  border-top: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  padding: 0 var(--sp-md);
  z-index: 60;
  backdrop-filter: blur(6px);
}

#player-track-name {
  flex: 1;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--clr-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#player-controls {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
}

#btn-play-pause,
#btn-shuffle {
  background: transparent;
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-size: 0.85rem;
  width: 30px;
  height: 30px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
#btn-play-pause:hover,
#btn-shuffle:hover {
  border-color: var(--clr-text-hi);
  color: var(--clr-text-hi);
}

#volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 2px;
  background: var(--clr-border);
  outline: none;
  cursor: pointer;
}
#volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  background: var(--clr-text);
  border-radius: 50%;
  cursor: pointer;
}

#visualizer-canvas {
  display: block;
  image-rendering: pixelated;
}