/* Base layout */
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: #0e0f12;
  color: #e6e6e6;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, Apple Color Emoji, Segoe UI Emoji;
}

#glcanvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
}

#overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

#hud {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  pointer-events: none;
}

#hud .hint {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(6px);
  color: #d9d9d9;
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 13px;
}

.placard {
  position: absolute;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #dcdcdc;
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 12px;
  line-height: 1.3;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.35);
}

.placard .title {
  font-weight: 600;
}

.placard .meta {
  opacity: 0.8;
}