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

body {
  overflow: hidden;
  background: #000510;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: #c0d8ff;
}

#canvas {
  display: block;
  width: 100vw;
  height: 100vh;
}

/* --- Page title --- */

#page-title {
  position: fixed;
  top: 28px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #6699cc;
  text-shadow: 0 0 16px #0066cc66;
  z-index: 10;
  pointer-events: none;
  white-space: nowrap;
}

/* --- Slider panel --- */

#slider-container {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  z-index: 10;
  user-select: none;
}

.slider-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6699cc;
}

.slider-label-left {
  text-align: right;
}

.slider-title {
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #88bbee;
  white-space: nowrap;
}

.slider-track-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 200px;
}

#familiarity-slider {
  width: 320px;
  height: 28px;
  background: transparent;
  cursor: pointer;
  outline: none;
  border: none;
  -webkit-appearance: none;
  appearance: none;
}

/* Webkit track */
#familiarity-slider::-webkit-slider-runnable-track {
  height: 6px;
  background: linear-gradient(to right, #001a33, #003366 75%, #005599);
  border-radius: 3px;
  border: 1px solid #004488;
}

/* Webkit thumb */
#familiarity-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, #66ddff, #0088cc);
  border: 2px solid #00bbff;
  box-shadow: 0 0 8px #00aaff88, 0 0 20px #0066cc44;
  cursor: grab;
  margin-top: -6px;
}

#familiarity-slider::-webkit-slider-thumb:active {
  cursor: grabbing;
  box-shadow: 0 0 12px #00ccffaa, 0 0 30px #0088ff66;
}

/* Firefox track */
#familiarity-slider::-moz-range-track {
  height: 6px;
  background: linear-gradient(to right, #001a33, #003366 75%, #005599);
  border-radius: 3px;
  border: 1px solid #004488;
}

/* Firefox thumb */
#familiarity-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, #66ddff, #0088cc);
  border: 2px solid #00bbff;
  box-shadow: 0 0 8px #00aaff88, 0 0 20px #0066cc44;
  cursor: grab;
}

/* Tipping point indicator — tick + label as one unit */
.tipping-indicator {
  position: absolute;
  left: 73.5%; /* approximate; JS corrects on load */
  bottom: calc(100% + 2px);
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 2px;
  pointer-events: none;
  transform: translateX(-50%);
}

.tipping-indicator .tick {
  width: 2px;
  height: 10px;
  background: #ffaa2288;
  border-radius: 1px;
  flex-shrink: 0;
  margin-bottom: -10px;
}

.tipping-indicator .tick-label {
  font-size: 9px;
  color: #ffaa2266;
  white-space: nowrap;
}

/* --- Reality labels (projected from 3D) --- */

.reality-label {
  position: fixed;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #5599cc;
  text-shadow: 0 0 12px #0066cc88;
  pointer-events: none;
  z-index: 5;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  transition: opacity 0.2s;
  text-align: center;
}

.reality-subtitle {
  display: block;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: #4488aa;
  margin-top: 2px;
}